JP2018004144A - Drainage system and bathroom system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To discharge hot water in a bathtub by utilizing a circulation pipeline for re-heating.SOLUTION: A drainage system 12 includes: a heat source machine 14 in which a reheating outgoing pipe 16A and a reheating return pipe 16B of a circulation pipeline 16 for reheating are connected, and for heating hot water flowing in the reheating outgoing pipe from the reheating return pipe; a circulation port 20 provided in a bathtub 18, for supplying hot water from the reheating outgoing pipe 16A and for sucking the hot water in the bathtub in the reheating return pipe 16B; a circulation pump 42 provided at the heat source machine 14; a drainage pipeline 26 branched form the reheating outgoing pipe 16A and having a drain port 28 from which the hot water in the bathtub is discharged; and a three-way valve 30 provided at a branch part of the reheating outgoing pipe 16A and the drainage pipeline 26 and for switching between a normal flow path in which the hot water flows from the reheating outgoing pipe 16A to the circulation port 20, and a drainage path in which the hot water in the bathtub flows to the drainage pipeline via the circulation port and the reheating outgoing pipe or the hot water in the bathtub flows to the drainage pipeline via the reheating outgoing pipe from the circulation port and the reheating return pipe.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a drainage system and a bathroom system.

  In the following Patent Document 1, when the bather's heart rate is grasped from the bather's heart rate, it is detected that there is no movement in the bather's bathtub based on that, and when the measured heart rate is abnormal The bathroom system which discharges the hot water in a bathtub from the automatic drain plug arrange | positioned at the bottom face of the bathtub is disclosed. In addition, there exists what was described in patent document 2 as a system provided with the automatic drain plug arrange | positioned at the bottom face of a bathtub, and opening an automatic drain plug at the time of an alarm.

JP 2004-275347 A JP 2003-123162 A

  In the bathroom system described in Patent Document 1, for example, when an automatic drain plug is retrofitted, the automatic drain plug can be retrofitted only to a pop-up drain plug provided in the bathtub. That is, there is a problem that bathrooms in which a system for automatically discharging hot water in a bathtub can be constructed are limited.

  This invention is made | formed in view of the said problem, and it aims at providing the drainage system and bathroom system which can discharge | emit the hot water in a bathtub using the circulation piping for remedy.

  In the drainage system according to the first aspect of the present invention, a circulation pipe for remedy provided with a remedy outgoing pipe and a remedy return pipe, and the remedy forward pipe and the remedy return pipe are connected. A heat source device that heats hot water flowing from the follow-up return pipe to the follow-up return pipe using heat of a gas burner, and is provided in a bathtub and is connected to the follow-up return pipe and the follow-up return pipe A circulation port for supplying hot water into the bathtub from the follow-up outgoing pipe and sucking the hot water in the bathtub into the follow-up return pipe, and provided in the heat source device, the follow-up return pipe and the additional pipe. A circulation pump that circulates hot water to and from the culvert pipe, a drain pipe that is branched from the follow-up pipe, and that has a drain outlet through which hot water is discharged, and a divergence between the follow-up pipe and the drain pipe Usually, hot water flows from the follow-up outbound pipe to the circulation port. Flow path and hot water in the bathtub flow to the drainage pipe through the circulation port and the follow-up forward pipe, or hot water in the bathtub flows from the circulation port and the follow-up return pipe to the follow-up forward pipe A path switching valve that switches to a drainage path that flows through the drainage pipe, and a control unit that controls a switching operation of the path switching valve.

  According to the first aspect of the present invention, the heat source device is connected to the remedy outgoing pipe and the remedy return pipe provided in the circulation piping for remedy, and from the remedy return pipe to the remedy forward path. Hot water flowing in the pipe is heated using the heat of the gas burner. The circulation port in the bathtub is connected to the remedy forward pipe and the remedy return pipe respectively, and hot water flowing from the heat source machine to the remedy forward pipe is circulated by operating the circulation pump provided in the heat source machine. It is supplied into the bathtub from the mouth. At the same time, hot water in the bathtub is sucked into the remedy return pipe from the circulation port and flows to the heat source machine through the remedy return pipe. Thereby, hot water is circulated through the memorial return pipe and the memorial forward pipe. In addition, a drain pipe is branched from the memorial outgoing pipe, and the drain pipe is provided with a drain port through which hot water is discharged. Furthermore, a path switching valve is provided at a branch portion between the memorial outgoing path pipe and the drain pipe. As a result, the hot water path is switched between the normal flow path through which the hot water flows from the follow-up route pipe to the circulation port and the hot water in the bathtub passes through the circulation port and the follow-up route pipe by switching the path switching valve in the control unit. The hot water in the bathtub is switched to the drainage path flowing from the circulation port and the remedy return pipe to the drainage pipe through the remedy forward pipe. For this reason, by switching the path switching valve from the normal flow path to the drainage path, the hot water in the bathtub can be routed through the circulation port and the remedy outgoing route pipe or from the circulation port and the remedy return route pipe. Through the drainage pipe and discharged from the drainage port. Therefore, the hot water in the bathtub can be discharged using the circulation piping for memorial service. In addition, since a drainage system can be installed later in a bathroom provided with a circulation pipe for remembrance, the bathroom where the drainage system can be constructed is not limited.

  Invention of Claim 2 is provided with the bathing state detection means which detects the predetermined bathing state which the bather in the said bathtub may become abnormal in the drainage system of Claim 1, The said control part is said bathing When a predetermined bathing state is detected by the state detection means, the path switching valve is switched from the flow path to the drainage path.

  According to the second aspect of the present invention, the bath is provided with a bathing state detecting means for detecting a predetermined bathing state in which the bather in the bathtub may become abnormal, and the control unit detects the predetermined bathing state by the bathing state detecting means. When detected, the path switching valve is switched from the normal flow path to the drainage path. Thereby, the hot water in a bathtub flows into a drainage pipe via a circulation port and a follow-up outbound route pipe, or from a circulation port and a follow-up return way tube via a follow-up outbound route pipe, and is discharged | emitted from a drain outlet. For this reason, it is possible to prevent the bather from drowning in the bathtub when the bather loses consciousness, for example.

  According to a third aspect of the present invention, in the drainage system according to the first or second aspect, the path switching valve is configured such that the flow path and hot water in the bathtub are connected to the circulation port and the follow-up forward path pipe. It is set as the structure switched to the 1st drainage path which flows into the said drainage pipe via, and the said drainage port is arrange | positioned in the position lower than the height of the said circulation port.

  According to the invention described in claim 3, the path switching valve is configured to switch between the normal flow path and the first drainage path in which the hot water in the bathtub flows to the drainage pipe via the circulation port and the tracking forward path pipe; Has been. Furthermore, the drain outlet is arrange | positioned in the position lower than the height of a circulation port. Thereby, by switching the path switching valve from the normal flow path to the first drainage path, the hot water in the bathtub flows into the drainage pipe via the circulation port and the tracking path pipe, and is naturally drained from the drainage port. For this reason, hot water in the bathtub can be drained naturally by switching the path switching valve.

  According to a fourth aspect of the present invention, in the drainage system according to the third aspect, between the path switching valve and the circulation port in the follow-up outgoing pipe, hot water in the bathtub is passed from the follow-up outgoing pipe. A drain pump that flows through the drain pipe is provided, and the control unit operates the drain pump in a state where the path switching valve is switched from the flow path to the first drain path.

  According to the invention described in claim 4, the drainage pump for discharging hot water in the bathtub from the tracking path pipe to the drain pipe is provided between the path switching valve and the circulation port in the tracking path path pipe. The control unit operates the drainage pump with the path switching valve switched from the normal flow path to the first drainage path, so that the hot water in the bathtub is drained to the drainage pipe through the circulation port and the follow-up route pipe. It is forced by the pump and discharged from the drain. For this reason, the hot water in a bathtub can be discharged | emitted in a short time compared with the case where the hot water in a bathtub is drained naturally through a circulation port and a follow-up outbound route pipe.

  According to a fifth aspect of the present invention, in the drainage system according to the first or second aspect, the path switching valve is configured such that the flow path and the hot water in the bathtub are drawn from the circulation port and the additional return pipe. It is set as the structure switched to the 2nd waste_water | drain path | route which flows into the said drainage piping via the said memorization outgoing path pipe, The said control part is the state which switched the said path | route switching valve from the said flow path to the said 2nd drainage path | route. And actuate the circulating pump.

  According to the fifth aspect of the present invention, the path switching valve includes the normal flow path and the second drainage path through which hot water in the bathtub flows from the circulation port and the remedy return pipe to the drainage pipe through the remedy forward pipe. It is set as the structure switched to. The control unit operates the circulation pump with the path switching valve switched from the normal flow path to the second drainage path, so that the hot water in the bathtub flows from the circulation port and the additional return pipe to the heat source machine, It flows from the heat source machine to the drainage pipe through the melee outgoing pipe and is discharged from the drainage port. For this reason, the hot water in the bathtub is forcibly discharged by the circulation pump, so that the hot water in the bathtub can be drained in a shorter time than when the hot water in the bathtub is drained naturally through the circulation port and the memorial outgoing pipe. Can be discharged.

  The invention according to claim 6 is the drainage system according to any one of claims 1 to 5, wherein the path switching valve is detachably attached to a side portion of the bathtub. Is arranged.

  According to the invention described in claim 6, even when a path switching valve and a drain pipe are retrofitted to a memorandum outbound pipe using a circulation pipe for remembrance, A path switching valve and a drain pipe can be installed in the forward pipe, so that the construction is not large and can be installed at low cost. Moreover, the drainage system of the present invention can also be constructed when the drainage plug of the bathtub is a rubber plug other than the hop-up drainage plug.

  A seventh aspect of the present invention is the drainage system according to the fourth aspect, wherein the drainage pump is disposed inside an apron that is detachably attached to a side portion of the bathtub.

  According to the invention described in claim 7, even when the drainage pump is installed later, it is possible to install the drainage pump by removing the apron, and the construction becomes easy.

  According to an eighth aspect of the present invention, in the drainage system according to any one of the first to seventh aspects, the drainage system is provided in the heat source unit and connected to a drain pipe branched from the side of the additional return pipe. And a drain tank that stores water neutralized from the acidic water generated by the latent heat recovery, and the drainage pipe and the path switching valve discharge the water from the drain tank through the tracking path pipe. It is set as the structure which serves as the drainage piping and the three-way valve which are arrange | positioned.

  According to the invention described in claim 8, the heat source device is provided with a drain tank connected to a drain pipe branched from the side of the additional return pipe, and neutralizes acidic water generated by latent heat recovery. Water is stored in the drain tank. In order to discharge the water from the drain tank through the remedy forward pipe, the remedy forward pipe is provided with a drain pipe and a three-way valve, and the water in the drain tank is connected to the remedy return pipe. The drainage is drained from the three-way valve to the drainage pipe through the memorial outbound pipe from the side. In the drainage system, the drainage pipe and the path switching valve are also used as the drainage pipe for drainage drainage and the three-way valve, so that the drainage system can be installed at a low cost even when retrofitting the drainage system. Furthermore, the structure of the drainage system is simplified.

  According to a ninth aspect of the present invention, in the drainage system according to the second aspect, the bathing state detecting means detects a heart rate detecting means for detecting a heart rate of the bather in the bathtub, and detects a position of the bather. It comprises at least one or more of a human body detecting means and a blood pressure detecting means for detecting the blood pressure of the bather, and the control unit is detected by at least one of the heart rate detecting means, the human body detecting means, and the blood pressure detecting means. The path switching valve is switched from the flow path to the drainage path based on the bathing state of the bather based on the information thus obtained.

  According to the ninth aspect of the present invention, the heart rate detecting means for detecting the heart rate of the bather in the bathtub, the human body detecting means for detecting the position of the bather, and the blood pressure detecting means for detecting the blood pressure of the bather At least one of the above. The control unit switches the path switching valve from the normal flow path to the drainage path based on the bathing state of the bather based on information detected by at least one of the heart rate detection means, the human body detection means, and the blood pressure detection means. Thereby, for example, when the bather's heart rate and blood pressure are higher than allowable values, or when the bather does not move, the hot water in the bathtub can be discharged from the circulation port.

  The tenth aspect of the present invention is the drainage system according to the second aspect, wherein the bathing state detecting means includes a hot water temperature detecting means for detecting a temperature of hot water stored in the bathtub, and a bather in the bathtub. Bathing time measuring means for measuring the bathing time of the hot water temperature detected by the hot water temperature detecting means and the bathing time detected by the bathing time measuring means based on the path The switching valve is switched from the flow path to the drainage path.

  According to invention of Claim 10, the hot water temperature detection means which detects the temperature of the hot water stored in a bathtub, and the bathing time measurement means which measures the bathing time of the bather in a bathtub are provided. The control unit switches the path switching valve from the normal flow path to the drainage path based on the temperature of the hot water detected by the hot water temperature detecting means and the bathing time detected by the bath time measuring means. For example, according to a document published by the Consumer Affairs Agency (January 20, 2016), “It will rise to less than 10 minutes with hot water of 41 ° C. or less” is recommended as a safe bathing method. For this reason, for example, when this condition is not satisfied (when bathing in hot water of 41 ° C. or higher for 10 minutes or more), the hot water in the bathtub can be discharged from the circulation port, and the bather is in an abnormal state. This can be prevented beforehand.

  The eleventh aspect of the present invention is the drainage system according to the ninth or tenth aspect, wherein the bathroom temperature detecting means for detecting the temperature of the bathroom, and the bathroom heating provided in the bathroom and increasing the temperature of the bathroom. A drying machine, wherein the control unit switches the path switching valve from the flow path to the drainage path, and based on the bathroom temperature detected by the bathroom temperature detection means, the bathroom heating and drying Drive the machine.

  According to invention of Claim 11, the bathroom temperature detection means which detects the temperature of a bathroom, and the heating dryer which raises the temperature of a bathroom are provided. The controller raises the temperature of the bathroom by operating the bathroom heating dryer based on the temperature of the bathroom detected by the bathroom temperature detecting means with the path switching valve switched from the normal flow path to the drainage path. Let For this reason, while discharging the hot water in a bathtub from a circulation port, it can suppress that a bather's state deteriorates by raising the temperature of a bathroom at the time of low temperature.

  Invention of Claim 12 is equipped with the remote controller in which the alerting | reporting means which outputs a sound is arrange | positioned in the bathroom in the drainage system of any one of Claim 9 to Claim 11, The said control part alert | reports from the said alerting | reporting means that the hot water in the said bathtub is discharged | emitted before switching the said path switching valve from the said flow path to the said drainage path.

  According to the twelfth aspect of the invention, there is provided a remote controller in which the notification means is arranged in the bathroom, and the control unit is configured to supply hot water in the bathtub before switching the path switching valve from the normal flow path to the drainage path. The bather is informed from the notification means by voice that the water is discharged. For this reason, it is avoided that the hot water in the bathtub is suddenly discharged without notifying the bather in advance.

  A bathroom system according to a thirteenth aspect of the present invention is a bathroom system in which the drainage system according to any one of the first to twelfth aspects and hot water heated by the heat source device provided in the drainage system are stored. And a bathtub to be provided.

  According to the invention described in claim 13, since the drainage system according to any one of claims 1 to 12 is provided, the hot water heated by the heat source machine is stored in the bathtub. Thus, hot water in the bathtub can be discharged using a circulation pipe for remembrance.

  ADVANTAGE OF THE INVENTION According to this invention, the drainage system which can discharge the hot water in a bathtub using the circulation piping for remedy can be provided.

It is a schematic structure figure showing a bathroom system provided with a drainage system concerning a 1st embodiment of the present invention. It is a block diagram of the control system for controlling operation | movement of the bathroom system provided with the drainage system shown in FIG. It is a front view which shows the remote controller for bathrooms used for the bathroom system shown in FIG. In the bathroom system shown in FIG. 1, it is a schematic block diagram which shows the flow of the hot water at the time of memorialization. In the bathroom system shown in FIG. 1, it is a schematic block diagram which shows the flow of the water from the drain tank at the time of drain drainage. In the bathroom system shown in FIG. 1, when the state which may become abnormal is detected, it is a schematic block diagram which shows the flow of the hot water from which the hot water in a bathtub is discharged | emitted. In the bathroom system to which the drainage system concerning a 2nd embodiment of the present invention was applied, it is a schematic structure figure showing the flow of the hot water at the time of remembrance. In the bathroom system shown to FIG. 5A, when the state which may become abnormal is detected, it is a schematic block diagram which shows the flow of the hot water from which the hot water in a bathtub is discharged | emitted. In the bathroom system to which the drainage system concerning a 3rd embodiment of the present invention was applied, it is a schematic structure figure showing the flow of the hot water at the time of remembrance. It is a schematic block diagram which shows the flow of the hot water from which the hot water in a bathtub is discharged | emitted when the state which may become abnormal is detected in the bathroom system shown to FIG. 6A. It is a block diagram of the drainage system shown in Drawing 6A and Drawing 6B. It is a block diagram of the control system for controlling operation | movement of the bathroom system provided with the drainage system which concerns on 4th Embodiment of this invention. It is a flowchart which shows the control which discharges the hot water in a bathtub in the bathroom system to which the drainage system which concerns on 5th Embodiment of this invention was applied. It is a schematic block diagram which shows the bathroom system provided with the drainage system which concerns on 6th Embodiment of this invention and its modification.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
The drainage system which is 1st Embodiment of this invention is demonstrated using FIGS. 1-4C.

  The bathroom system 10 provided with the drainage system 12 which is 1st Embodiment of this invention is shown by the schematic block diagram by FIG. As shown in FIG. 1, the bathroom system 10 includes a heat source machine 14 for heating hot water, a circulation pipe 16 for remedy connected to the heat source machine 14, a circulation pipe 16 and a heat source machine 14. And a bathtub 18 in which hot and cold water is circulated.

  The circulation pipe 16 is connected to the heat source unit 14 and is connected to the heat source unit 14 to flow the hot water from the heat source unit 14 to the bathtub 18. The recirculation pipe 16 is connected to the heat source unit 14 to connect the heat source unit 14 to the heat source unit 14 and flows from the bathtub 18 to the heat source unit 14. 16B. A circulation port 20 is provided on the inner wall of the bathtub 18, and a remedy outgoing path pipe 16 </ b> A and a remedy return path pipe 16 </ b> B are connected to the circulation port 20, respectively. More specifically, the circulation port 20 is connected to the discharge passage pipe 16 </ b> A and is connected to the discharge port 20 </ b> A through which the hot water is discharged into the bathtub 18, and to the circulation return pipe 16 </ b> B and is supplied with hot water from the bathtub 18. And an inlet 20B for inhalation. Further, the heat source device 14 is provided with a circulation pump 42 to be described later for circulating hot water through the retrace return pipe 16B and the retrace forward pipe 16A.

  The bathtub 18 is provided in the bathroom 22. An apron 24 is detachably attached to a side portion of the bathtub 18, and a part of the remedy outgoing path pipe 16 </ b> A and the remedy return path pipe 16 </ b> B are disposed inside the apron 24. The bathroom system 10 is provided with a drain pipe 26 branched from the follow-up outgoing pipe 16A. The drain pipe 26 extends downward from the branch (connecting part) to the follow-up outgoing pipe 16A in the vertical direction. Yes. A drain port 28 through which hot water is discharged is provided at the end of the drain pipe 26 on the lower side in the vertical direction. The drain port 28 is disposed on the lower side in the vertical direction with respect to the lower portion of the discharge port 20 </ b> A of the circulation port 20.

  An electromagnetic three-way valve 30 serving as a path switching valve for switching the hot water flow path is provided at a branching section (connecting section) between the follow-up outgoing pipe 16A and the drain pipe 26. The drain pipe 26 is branched from the follow-up outgoing pipe 16 </ b> A inside the apron 24, and the three-way valve 30 is arranged inside the apron 24. The three-way valve 30 has a normal flow path in which hot water flows from the follow-up outward pipe 16A to the circulation port 20 of the bathtub 18, and hot water in the bathtub 18 flows to the drain pipe 26 through the circulation port 20 and the follow-up forward pipe 16A. It is set as the structure switched to the 1st drainage path as a drainage path. Furthermore, the three-way valve 30 is configured to switch from a normal flow path to a drain drain path through which water in a drain tank 48 (described later) flows to the drain pipe 26 via the follow-up outbound pipe 16A during drain drain. The three-way valve 30 will be described later.

  The drainage system 12 of the present embodiment includes a circulation pipe 16, a heat source device 14, a circulation port 20, a circulation pump 42, a drainage pipe 26, and a three-way valve. 30 as main components.

  A drain port 34 is provided at the bottom of the bathtub 18, and a drain plug 36 that closes the drain port 34 is provided. The drain plug 36 is opened and closed by an open / close button (not shown) provided in the bathtub 18.

  The heat source device 14 is disposed outdoors. The heat source device 14 includes a circulation pump 42, a memorial unit 44, and a hot water supply unit 46 inside the housing 40. Further, the heat source unit 14 is configured to collect latent heat for energy saving, and includes a drain tank 48 that stores water obtained by neutralizing acidic water generated by the latent heat collection. A fan 50 is provided at the bottom of the housing 40 via an exhaust port (not shown).

  The memorial unit 44 includes a heat exchanger 52 and a gas burner 54. Although not shown, the downstream end of the hot water flow direction of the tracking return pipe 16B is connected to the inlet of the heat exchanger 52 disposed in the tracking section 44, and the hot water flow direction of the tracking forward pipe 16A. Is connected to the outlet of the heat exchanger 52. Inside the heat source unit 14, a circulation pump 42 is provided upstream of the heat exchanger 52 in the follow-up return pipe 16B in the hot water flow direction. A pipe (not shown) for supplying gas (city gas) is connected to the gas burner 54, and an ignition device (not shown) is provided. In the remedy section 44, hot water flowing from the remedy return path pipe 16 </ b> B to the remedy forward path pipe 16 </ b> A is heated using the heat of the gas burner 54. In addition, although illustration is abbreviate | omitted, in the heat source machine 14, indirect heat exchange which heats the heat medium which flows through heating piping by gas combustion, and transfers heat with the liquid-liquid heat exchanger from the heating piping to the circulation piping 16 for remedy. The system is also adopted.

  The hot water supply unit 46 includes a primary heat exchanger 56, a secondary heat exchanger 58, and a gas burner 60. The hot water supply section 46 is connected with a hot water filling pipe 62 branched from the memorial return pipe 16B. The hot water filling pipe 62 is branched from the remedy return pipe 16B upstream of the circulation pump 42 provided in the remedy return pipe 16B in the hot water flow direction. Although not shown, the hot water supply unit 46 is connected to a water supply pipe for supplying water to the secondary heat exchanger 58. Further, the water supply pipe is connected to a pipe arranged to pass water supplied from the water supply pipe through the secondary heat exchanger 58 and then through the primary heat exchanger 56. The pipe is connected to the upstream side of the hot water piping 62 in the hot water flow direction at the outlet of the primary heat exchanger 56. In addition, although illustration is abbreviate | omitted, the hot water supply piping for hot water supply is branched from the hot water filling piping 62. In the hot water supply section 46, the water flowing from the secondary heat exchanger 58 to the primary heat exchanger 56 is heated using the heat of the gas burner 60, and hot water flows through the hot water filling pipe 62.

  A drain pipe 66 is branched from the memorial return pipe 16B to the upstream side in the hot water flow direction from the connecting portion of the hot water pipe 62 in the memorial return pipe 16B. An electromagnetic three-way valve 68 is provided at a branch portion (connecting portion) between the follow-up return pipe 16 </ b> B and the drain pipe 66. The drain pipe 66 is connected to the drain tank 48. Although not shown, the heat source device 14 includes a recovery pipe connecting the secondary heat exchanger 58 and the drain tank 48 and a drain neutralizer provided in the recovery pipe. As a result, the acidic water generated when the latent heat is recovered by the secondary heat exchanger 58 is neutralized by the drain neutralizer, and the neutralized water is stored in the drain tank 48 through the recovery pipe. ing.

  The three-way valve 68 has a normal flow path through which hot water flows from the circulation port 20 to the remedy section 44 via the remedy return pipe 16B, and water in the drain tank 48 passes through the drain pipe 66 and passes through the remedy return pipe 16B. It is configured to switch to a drain path that flows to the remedy section 44 side. When draining, the three-way valve 68 is switched to the drain path so that the water in the drain tank 48 flows through the drain pipe 66 to the side of the tracking section 44 of the tracking return pipe 16B.

  The bathroom system 10 including the drainage system 12 of the present embodiment includes a remote controller 72 (hereinafter abbreviated as a remote controller 72) and a control unit 74. The remote controller 72 is provided on the side wall of the bathroom 22. The control unit 74 is provided inside the heat source machine 14 as an example. The remote controller 72 and the control unit 74 are connected by a cable.

  FIG. 2 is a block diagram illustrating a bathroom system 10 including the drainage system 12 of the present embodiment. As shown in FIG. 2, the remote controller 72 has an operation unit having a display unit 76 that displays the operation status and the like of the bathroom system 10 and a plurality of buttons (see FIG. 3) that select a predetermined operation and the like of the bathroom system 10. 78. The remote controller 72 is electrically connected to the display unit 76 and the operation unit 78 and controls the remote controller 72. The remote controller 72 is electrically connected to the control unit 80 and communicates with the control unit 74. And a communication unit 82 for performing. Further, the remote controller 72 is provided with a speaker 100 as an informing unit that is electrically connected to the control unit 80 and outputs information such as an operation state as a sound. Furthermore, the remote controller 72 includes a biological information sensor 94 that detects biological information of the bather. As the biological information sensor 94, for example, a human sensor as human body detecting means for detecting the position of a person in the bathroom 22 (not necessarily bathing), a heart rate detection for detecting a bather's heart rate At least one or more of a heart rate sensor as a means and a blood pressure sensor as a blood pressure detection means for detecting a blood pressure of a bather is provided. And in the drainage system 12, it is set as the structure which switches the three-way valve 30 based on the bathing state of the bather by the biological information detected by at least 1 or more, such as a human sensor, a heart rate sensor, a blood pressure sensor. In the present embodiment, a human sensor, a heart rate sensor, and a blood pressure sensor are provided as the biological information sensor 94. The heart rate sensor is configured to detect the heart rate of the bather in a non-contact state with the bather. Similarly, the blood pressure sensor is configured to detect the blood pressure of the bather in a non-contact state with the bather.

  Position information of a person in the bathroom 22 detected by a human sensor as an example of the biological information sensor 94 is transmitted to the control unit 80. The control unit 80 outputs a signal corresponding to the position information of the person in the bathroom 22 from the communication unit 82 to the control unit 74. Further, information on the heart rate of the bather detected by the heart rate sensor as an example of the biological information sensor 94 is transmitted to the control unit 80. Furthermore, the blood pressure information of the bather detected by the blood pressure sensor as an example of the biological information sensor 94 is transmitted to the control unit 80. In the control unit 80, the position detection signal output from the human sensor is processed, whereby the position of the person in the bathroom 22 is specified. In the control unit 80, the heart rate of the bather is measured by processing the heart rate detection signal output from the heart rate sensor. Similarly, in the control unit 80, the blood pressure of the bather is measured by processing the blood pressure detection signal output from the blood pressure sensor. The control unit 80 outputs signals corresponding to the bather's position information, the bather's heart rate information, and the bather's blood pressure information from the communication unit 82 to the control unit 74, respectively. The control unit 80 outputs a signal corresponding to the operation of each button or the like from the communication unit 82 to the control unit 74 when the operation of each button or the like is performed by the operation unit 78.

  The control unit 74 includes a combustion unit 84 that operates the components of the tracking unit 44 and the hot water supply unit 46, a control unit 86 that is electrically connected to the combustion unit 84 and controls the entire bathroom system 10, and a control unit 86, and a communication unit 88 that is electrically connected to the remote controller 72 and communicates with the remote controller 72 or the like. The communication unit 88 of the control unit 74 and the communication unit 82 of the remote controller 72 are electrically connected. The control unit 74 includes a timer 90 that measures time, and the timer 90 is electrically connected to the control unit 86. The timer 90 measures, for example, a bathing time, an elapsed time from when the three-way valve 30 is switched from the normal flow path to the first flow path, and the like. The communication unit 88 is electrically connected to the circulation pump 42 and the three-way valve 68, respectively, and the control unit 86 transmits a signal via the communication unit 88, thereby operating the circulation pump 42 and the three-way valve 68. Control. Further, the communication unit 88 is electrically connected to the three-way valve 30 disposed on the side of the bathtub 18, and the control unit 86 transmits a signal via the communication unit 88, so that the three-way valve 30. Control the behavior.

  The control unit 86 includes a ROM (read-only memory) that stores a program for performing each operation, a RAM (rewritable memory) that temporarily stores data based on signals output from the remote controller 72 or each sensor, And it has CPU (central processing element) etc. which execute each program.

  Signals corresponding to the position information of the person in the bathroom 22, the bather's heart rate information, and the bather's blood pressure information output from the remote controller 72 are respectively input to the control unit 86 of the control unit 74. It has become. Control of switching of the three-way valve 30 of the control unit 86 based on signals corresponding to the position information of the person in the bathroom 22, the information on the heart rate of the bather, and the information on the blood pressure of the bather will be described later.

  The communication unit 88 of the control unit 74 is electrically connected to the measuring device 92. The measuring device 92 is disposed on the side of the bathtub 18 (see FIG. 1). Although not shown, the measuring device 92 includes a communication unit that performs communication with the control unit 74 and a control unit that performs processing of various signals.

  Moreover, the water level sensor 96 which detects the water level of the hot water in the bathtub 18 is provided in the side part of the bathtub 18 (refer FIG. 1). The water level sensor 96 is electrically connected to the measuring device 92, and the water level detection signal output from the water level sensor 96 is processed by the measuring device 92, whereby the water level of the hot water in the bathtub 18 is measured. The water level data is transmitted from the measuring device 92 to the control unit 86 of the control unit 74.

  The remedy return pipe 16B is provided with a hot water temperature sensor 98 as hot water temperature detection means for detecting the temperature of hot water returned from the bathtub 18 to the heat source unit 14 through the remedy return pipe 16B. The hot water temperature sensor 98 is electrically connected to the measuring device 92, and the temperature detection signal output from the hot water temperature sensor 98 is processed by the measuring device 92, whereby the temperature of the hot water is measured. The temperature data of the hot water is transmitted from the measuring device 92 to the control unit 86 of the control unit 74.

  FIG. 3 shows the remote controller 72 in a front view. As shown in FIG. 3, the remote controller 72 includes an operation switch 102 that is turned on and off, a bath automatic button 104 that automatically fills the bathtub 18, a remedy button 106 that performs remedy, and a bathroom 22. And a call button 110 for calling an outside person. These switches and a plurality of buttons constitute an operation unit 78 (see FIG. 2). As described above, the remote controller 72 includes the display unit 76, the speaker 100, and the biological information sensor 94. Although not shown, the remote controller 72 may be provided with other buttons such as a setting button for setting the temperature of hot water in the bathtub 18.

  In the drainage system 12, as described above, the three-way valve 30 has a normal flow path in which hot water flowing from the heat source device 14 to the follow-up outgoing pipe 16 </ b> A flows to the circulation port 20 (discharge port 20 </ b> A in this embodiment) of the bathtub 18. And a first drainage path as a drainage path through which hot water in the bathtub 18 flows from the follower forward pipe 16A to the drainage pipe 26 via the circulation port 20 (in this embodiment, the suction inlet 20B) and the follower return pipe 16B; It is set as the structure switched to. As described above, the control unit 86 of the control unit 74 controls the switching operation of the three-way valve 30.

  The three-way valve 30 is configured to seal the drainage pipe 26 and to communicate the follower forward path pipe 16A over the whole in a state in which the three way valve 30 is switched to a normal flow path path. 14 is communicated with the discharge port 20A of the circulation port 20. In other words, the three-way valve 30 is switched from the drain port 28 side to the heat source unit 14 side. Thereby, hot water flowing from the heat source device 14 to the follow-up outgoing pipe 16 </ b> A is discharged into the bathtub 18 from the discharge port 20 </ b> A of the circulation port 20 of the bathtub 18.

  In addition, the three-way valve 30 is switched from the normal flow path to the first drainage path, so that the three-way valve 30 seals the upstream side of the tracking path pipe 16A and the downstream side of the tracking path path 16A as a drain pipe. The discharge port 20 </ b> A of the circulation port 20 is in communication with the drain port 28 of the drain pipe 26. In other words, the three-way valve 30 is switched from the heat source unit 14 side to the drain port 28 side. As a result, the hot water in the bathtub 18 flows from the discharge port 20A of the circulation port 20 to the drainage pipe 26 via the downstream side of the tracking path pipe 16A, and is discharged from the drainage port 28.

  In the present embodiment, the biological information sensor 94 functions as a bathing state detection unit that detects a predetermined bathing state in which a bather in the bathtub 18 may become abnormal. For example, when the controller 86 detects that there is no movement of the bather for a predetermined time or more based on the position information of the bather in the bathtub 18 detected by the human sensor as an example of the biological information sensor 94, When the bather's heart rate detected by a heart rate sensor as an example of the biological information sensor 94 is equal to or higher than a first threshold value as an example of a predetermined heart rate, or as an example of the biological information sensor 94 When the blood pressure of the bather detected by the blood pressure sensor becomes equal to or higher than a second threshold value as an example of the predetermined blood pressure, the three-way valve 30 is switched from the normal flow path to the first drainage path. In the present embodiment, the three-way valve 30 is switched when the absolute value of the bather's heart rate is equal to or greater than the first threshold, but the change (increase) in the bather's heart rate is the predetermined heart rate. You may make it switch the three-way valve 30 when it becomes more than the change value (rise value) of a number. Similarly, in the present embodiment, the three-way valve 30 is switched when the absolute value of the bather's blood pressure is equal to or greater than the second threshold, but the change in blood pressure (the increase) of the bather is a predetermined amount. You may make it switch the three-way valve 30 when it becomes more than the change value (rise value) of a blood pressure.

  At the time of drainage, the three-way valve 30 moves from the heat source device 14 to the follow-up route pipe 16A from the normal flow path through which hot water flowing from the heat source device 14 to the follow-up route tube 16A flows to the discharge port 20A of the circulation port 20 of the bathtub 18. The flowing hot water is switched to the drain drain path through which the drain pipe 26 flows. The three-way valve 30 is switched from a normal flow path to a drain drain path so that the three-way valve 30 seals the downstream side of the tracking forward pipe 16A and communicates the upstream side of the tracking forward pipe 16A with the drain pipe 26. It is supposed to be configured. In other words, the connecting portion of the follow-up outgoing pipe 16 </ b> A with the heat source device 14 is configured to communicate with the drain outlet 28 of the drain pipe 26. In other words, the three-way valve 30 is configured to be switched from the discharge port 20A side of the circulation port 20 to the drain port 28 side. Further, during drainage, the three-way valve 68 causes the water in the drain tank 48 to pass through the drain pipe 66 from a normal flow path in which hot water flows from the circulation port 20 to the remedy section 44 via the remedy return pipe 16B. It is set as the structure switched to the drain path | route which flows into the memorial part 44 side of the memorial return pipe 16B. Then, by operating the circulation pump 42, the water flowing from the drain tank 48 through the drain pipe 66 and the follow-up return pipe 16 B to the follow-up outgoing pipe 16 A flows into the drain pipe 26 and is discharged from the drain port 28. It has become.

  When the three-way valve 30 is switched to the first drainage path and the predetermined condition is satisfied, the control unit 86 switches the three-way valve 30 from the first drainage path to the normal flow path (to the normal flow path). return). In this embodiment, the control unit 86 (1) when a predetermined time (for example, 12 hours) has elapsed since the three-way valve 30 was switched to the first drainage path, (2) the operation switch 102 of the remote controller 72 is turned off. When both the state and ON state operations are performed, (3) When any one of the conditions is satisfied, the bath automatic button 104 of the remote controller 72 is pressed to perform automatic hot water filling, The valve 30 is switched from the first drainage path to the normal flow path.

  In the bathroom system 10, in order to drain the water in the drain tank 48 through the follow-up outbound pipe 16A, the drain pipe 26 branched from the follow-up outbound pipe 16A, and the connection between the follow-up outbound pipe 16A and the drain pipe 26 are connected. An original three-way valve 30 is provided. In the drainage system 12 of the present embodiment, the drainage pipe 26 and the three-way valve 30 for draining the water in the drain tank 48 are also used as the drainage pipe 26 and the three-way valve 30 for draining hot water in the bathtub 18. Has been. When the drainage system 12 of the present embodiment is installed as a retrofit, the program of the control unit 74 may be changed.

  Next, the operation and effect of this embodiment will be described.

<Memorial operation>
When the remedy button 106 of the remote controller 72 shown in FIG. 3 is pressed in a state where hot water is filled in the bathtub 18, the control unit 80 of the remote controller 72 shown in FIG. Thus, a memory command signal is output to the control unit 74. When the control unit 86 of the control unit 74 detects the chasing command signal, the chasing mode is set.

  As shown in FIG. 4A, the control unit 86 of the control unit 74 switches the three-way valve 30 to the normal flow path, and switches the three-way valve 68 in the heat source unit 14 to the flow path at the time of tracking. Start the memorial operation with the In the memory operation, gas is supplied to the gas burner 54 and the ignition device is started to burn the gas in the gas burner 54 (activate the gas burner 54). Further, the control unit 86 operates the circulation pump 42.

  When the circulation pump 42 is actuated, as shown by an arrow A, hot water in the bathtub 18 is sucked from the suction port 20B of the circulation port 20, and this sucked hot water is added to the heat source device 14 through the additional return pipe 16B. Returned to the heat exchanger 52 of the section 44. Further, the hot water returned to the heat exchanger 52 is heated by the gas burner 54, and the heated hot water is passed from the discharge port 20 </ b> A of the circulation port 20 to the bathtub 18 through the tracking forward passage pipe 16 </ b> A as indicated by an arrow A. It is discharged inside.

  A temperature detection signal according to the temperature of the hot water flowing through the memorial return pipe 16B is output from the hot water temperature sensor 98 provided in the memorial return pipe 16B. During the chasing operation, the control unit 86 of the control unit 74 determines that the temperature detection value based on the temperature detection signal from the hot water temperature sensor 98 has reached the set value set as the predetermined chasing temperature. The above operation is repeated (until the temperature of the hot water reaches the set temperature). Thereby, the hot water in the bathtub 18 is tracked.

<Drain drainage>
The control unit 86 of the control unit 74 enters the drain drain mode when a predetermined condition is satisfied. As the predetermined condition, for example, the drain discharge mode is set every predetermined exercise time or when the water stored in the drain tank 48 becomes a predetermined water level or higher. As shown in FIG. 4B, the control unit 86 switches the three-way valve 68 in the heat source unit 14 from the flow path at the time of tracking to the drain path. Moreover, the control part 86 switches the three-way valve 30 of the side part of the bathtub 18 from the normal flow path | route to the drain drainage path | route in which the hot water flowing from the heat-source equipment 14 to the tracking outgoing path pipe | tube 16A flows into the drain piping 26. Further, the control unit 86 operates the circulation pump 42.

  By switching the three-way valve 68, as indicated by an arrow B, the water stored in the drain tank 48 flows through the drain pipe 66 to the side of the remedy section 44 of the remedy return pipe 16B. Further, by switching the three-way valve 30, as shown by an arrow B, water flows from the follower portion 44 to the follower forward passage pipe 16 </ b> A and further drained from the drain outlet 28 through the drain pipe 26.

<When an abnormality is detected>
When it is detected that there is no movement of the bather for a predetermined time or more based on the position information of the bather in the bathtub 18 detected by the human sensor as an example of the biological information sensor 94, the control unit 86 detects the biological information. The blood pressure sensor as an example of the biological information sensor 94 when the heart rate of the bather detected by the heart rate sensor as an example of the sensor 94 is equal to or higher than a first threshold value as an example of a predetermined heart rate. When the bather's blood pressure detected by the above becomes equal to or higher than a second threshold value as an example of the predetermined blood pressure, it is determined that an abnormality has been detected, and the drainage mode is set. As shown in FIG. 4C, the control unit 86 switches the three-way valve 30 from the normal flow path to the first drainage path. When the three-way valve 30 is switched to the first drainage path, as indicated by an arrow C, the hot water in the bathtub 18 passes from the discharge port 20A of the circulation port 20 to the downstream side of the tracking path 16A, and the drainage pipe 26 Flowing into. Further, the hot water is discharged from the drain port 28 of the drain pipe 26 as indicated by an arrow C. That is, hot water in the bathtub 18 is naturally discharged from the discharge port 20 of the drain pipe 26 from the discharge port 20 </ b> A of the circulation port 20 through the tracking route pipe 16 </ b> A. At that time, hot water above the discharge port 20A in the bathtub 18 is discharged.

  When a predetermined time (for example, 12 hours) has elapsed since the three-way valve 30 was switched to the first drainage path, the control unit 86 (2) the operation switch 102 of the remote control 72 is turned off and on. When both operations are performed, (3) when any one of the conditions is satisfied, the bath automatic button 104 of the remote controller 72 is pressed, the three-way valve 30 is moved from the first drainage path to the normal flow path. Switch to.

  In such a drainage system 12, the three-way valve 30 is switched from the normal flow path to the first drainage path, so that the hot water in the bathtub 18 is drained via the discharge port 20A of the circulation port 20 and the follow-up outbound route pipe 16A. It flows into the pipe 26 and is discharged from the drain port 28. Therefore, hot water in the bathtub 18 can be discharged using the circulation pipe 16 for remedy.

  When the heart rate of the bather in the bathtub 18 exceeds the first threshold or when the blood pressure of the bather exceeds the second threshold, for example, the bather loses consciousness due to heat shock, etc. May occur. Moreover, when it is detected that there is no movement of the bather in the bathtub 18 for a certain time or more, for example, there is a possibility that an abnormality such as the bather losing consciousness due to heat shock has occurred. In the drainage system 12, when it is detected that there is no movement of the bather for a certain period of time, when the heart rate of the bather in the bathtub 18 exceeds the first threshold, or the bather in the bathtub 18 When the blood pressure exceeds the second threshold value, the three-way valve 30 is switched from the normal flow path to the first drainage path, so that the hot water in the bathtub 18 is discharged from the discharge port 20A of the circulation port 20 and the follow-up path. It is discharged to the drainage pipe 26 through the pipe 16A. For this reason, for example, when the bather loses consciousness in the bathtub 18, the hot water in the bathtub 18 is discharged, so that the bather can be prevented from drowning in the bathtub 18. it can.

  In the drainage system 12, the drainage pipe 26 and the three-way valve 30 are also used as the drainage pipe 26 and the three-way valve 30 arranged to discharge the water in the drain tank 48 through the tracking path pipe 16 </ b> A. Has been. For this reason, for example, even when the drainage system 12 is retrofitted, the program of the control unit 74 may be changed, so that it can be installed at a low cost.

  Furthermore, in the drainage system 12, the three-way valve 30 is disposed inside an apron 24 attached to the side portion of the bathtub 18. For this reason, for example, even when the three-way valve 30 and the drainage pipe 26 are retrofitted to the memorial outgoing pipe 16A using the memorial circulation pipe 16, the construction does not become large and is installed at low cost. be able to. Moreover, also when the drain plug 36 of the bathtub 18 is a rubber plug or the like other than the hop-up drain plug, the drain system 12 of the present embodiment can be constructed.

[Second Embodiment]
Next, the bathroom system 10 including the drainage system 112 according to the second embodiment of the present invention will be described with reference to FIGS. 5A and 5B and the like. In addition, about the same component as 1st Embodiment mentioned above, the same number is attached | subjected and the description is abbreviate | omitted.

  As shown in FIGS. 5A and 5B, in the drainage system 112 of the present embodiment, the connecting portion between the tracking path pipe 16 </ b> A and the drainage pipe 26 arranged on the side of the bathtub 18 is used as a flow path switching valve. A three-way valve 114 is provided. The three-way valve 114 has a normal flow path in which hot water flowing from the heat source device 14 to the follow-up outgoing pipe 16A flows to the circulation port 20 (in this embodiment, the discharge port 20A) of the bathtub 18, and hot water in the bathtub 18 is a circulation port. 20 (in this embodiment, the suction port 20B) and the second drainage path as a drainage path flowing from the tracking forward path pipe 16A to the drainage pipe 26 via the tracking return path pipe 16B.

  The three-way valve 114 is switched from the normal flow path to the second drainage path so that the three-way valve 114 seals the downstream side of the tracking path pipe 16A and the upstream side of the tracking path pipe 16A with the drain pipe 26. It is configured to communicate. In other words, the connecting portion of the follow-up outgoing pipe 16 </ b> A with the heat source device 14 is configured to communicate with the drain outlet 28 of the drain pipe 26. In other words, the three-way valve 114 is switched from the bathtub 18 side to the drainage pipe 26 side. Note that switching of the three-way valve 114 during drainage is the same as switching of the three-way valve 30 (see FIG. 4B) of the first embodiment.

  The control unit 86 (see FIG. 2) detects that there is no movement of the bather in the bathtub 18 for a predetermined time or more based on the position information of the bather detected by the human sensor as an example of the biological information sensor 94. When the bather's heart rate detected by a heart rate sensor as an example of the biological information sensor 94 becomes equal to or higher than a first threshold value as an example of a predetermined heart rate, When the blood pressure of the bather detected by the blood pressure sensor as an example becomes equal to or higher than a second threshold value as an example of the predetermined blood pressure, the three-way valve 114 is switched from the normal flow path to the second drainage path.

  As shown in FIG. 5A, in the memorial operation, the circulation pump 42 is operated in a state where the three-way valve 114 is switched to the normal flow path. As a result, as indicated by an arrow A, hot water in the bathtub 18 is sucked from the suction port 20B of the circulation port 20, and the sucked hot water is returned to the remedy unit 44 of the heat source machine 14 through the remedy return pipe 16B. It is. The hot water returned to the remedy section 44 is heated by the gas burner 54, and the heated hot water enters the tub 18 from the discharge outlet 20 </ b> A of the circulation port 20 through the remedy forward pipe 16 </ b> A as indicated by an arrow A. Discharged.

  As shown in FIG. 5B, the control unit 86 (see FIG. 2) determines the movement of the bather based on the position information of the bather in the bathtub 18 detected by the human sensor as an example of the biological information sensor 94. When it is detected that there is no period of time or more, when the heart rate of the bather detected by the heart rate sensor as an example of the biological information sensor 94 becomes equal to or higher than a first threshold value as an example of a predetermined heart rate Or, when the blood pressure of the bather detected by the blood pressure sensor as an example of the biological information sensor 94 is equal to or higher than the second threshold value as an example of the predetermined blood pressure, the three-way valve 114 is set to a normal flow path. To the second drainage route. In this state, the circulation pump 42 of the heat source unit 14 is operated. At that time, the gas burner 54 is not ignited. Thereby, as shown by the arrow D, the hot water in the bathtub 18 is returned from the suction port 20B of the circulation port 20 to the heat source unit 14 through the additional return pipe 16B. Further, as indicated by an arrow D, the hot water flows from the heat source device 14 to the drain pipe 26 through the tracking forward pipe 16A and is discharged from the drain port 28.

  When the three-way valve 114 is switched to the second drainage path and the control unit 86 (see FIG. 2) satisfies any of the same conditions (1) to (3) as in the first embodiment, The valve 114 is switched from the second drainage path to the normal flow path (returned to the normal flow path).

  In such a drainage system 112, by switching the three-way valve 114 from the normal flow path to the second drainage path, the hot water in the bathtub 18 can be discharged using the circulation pipe 16 for remedy. Further, in the drainage system 112, the hot water in the bathtub 18 is forcibly discharged using the circulation pump 42 of the heat source device 14, so the hot water in the bathtub 18 according to the first embodiment is discharged from the discharge port 20A of the circulation port 20 and the additional water. Hot water in the bathtub 18 can be discharged in a short time compared with the structure of discharging naturally via the forward passage pipe 16A.

[Third Embodiment]
Next, the bathroom system 10 including the drainage system 122 according to the third embodiment of the present invention will be described with reference to FIGS. 6A to 7 and the like. In addition, about the same component as 1st and 2nd embodiment mentioned above, the same number is attached | subjected and the description is abbreviate | omitted.

  As shown in FIGS. 6A and 6B, in the drainage system 122 of the present embodiment, hot water in the bathtub 18 is added between the three-way valve 30 and the discharge port 20A of the circulation port 20 in the additional passage pipe 16A. A drainage pump 124 that discharges from the forward pipe 16 </ b> A to the drainage pipe 26 is provided. The three-way valve 30 and the drainage pump 124 are disposed inside the apron 24 on the side of the bathtub 18. In the present embodiment, the drainage pump 124 is installed as a retrofit, and the drainage pump 124 is attached to the follow-up outgoing path pipe 16 </ b> A with the apron 24 removed.

  In the drainage system 122, the three-way valve 30 includes a normal flow path in which hot water flowing from the heat source device 14 to the follow-up outgoing pipe 16 </ b> A flows to the circulation port 20 (in the present embodiment, the discharge port 20 </ b> A) of the bathtub 18, The hot water is switched to the first drainage path as a drainage path that flows from the remedy forward path pipe 16A to the drainage pipe 26 via the circulation port 20 (in this embodiment, the suction port 20B) and the remedy return path pipe 16B. ing. As shown in FIG. 7, the control unit 86 of the control unit 74 controls the switching operation of the three-way valve 30 and the operation of the drainage pump 124.

  As shown in FIG. 6A, in the memorial operation, the circulation pump 42 is operated while the three-way valve 30 is switched to the normal flow path. At this time, in the present embodiment, the drain pump 124 is also operated, but may not be operated if the drain pump 124 is an open pump. As a result, as indicated by an arrow A, hot water in the bathtub 18 is sucked from the suction port 20B of the circulation port 20, and the sucked hot water is returned to the remedy unit 44 of the heat source machine 14 through the remedy return pipe 16B. It is. The hot water returned to the remedy section 44 is heated by the gas burner 54, and the heated hot water enters the tub 18 from the discharge outlet 20 </ b> A of the circulation port 20 through the remedy forward pipe 16 </ b> A as indicated by an arrow A. Discharged.

  As shown in FIG. 6B, the controller 86 has no movement of the bather for a certain time or more based on the position information of the bather in the bathtub 18 detected by the human sensor as an example of the biological information sensor 94. Is detected, the heart rate of the bather detected by the heart rate sensor as an example of the biological information sensor 94 becomes equal to or higher than the first threshold value as an example of the predetermined heart rate, or the biological information When the blood pressure of the bather detected by the blood pressure sensor as an example of the sensor 94 becomes equal to or higher than the second threshold value as an example of the predetermined blood pressure, the three-way valve 30 is changed from the normal flow path to the first drainage path. Switch to. In this state, the control unit 86 operates the drain pump 124. As a result, as indicated by an arrow C, hot water in the bathtub 18 flows from the discharge port 20A of the circulation port 20 to the drainage pipe 26 through the downstream side of the tracking path pipe 16A by the drainage pump 124, and from the drainage port 28. Discharged.

  When the three-way valve 30 is switched to the first drainage path and the condition of any one of (1) to (3) as in the first embodiment is satisfied, the control unit 86 sets the three-way valve 30 to the second direction. Switch from drainage path to normal flow path (return to normal flow path).

  In such a drainage system 122, the controller 86 operates the drainage pump 124 in a state where the normal flow path is switched to the first drainage path, so that the hot water in the bathtub 18 is discharged to the discharge port 20 </ b> A of the circulation port 20. Is forcibly discharged to the drainage pipe 26 via the memorial outgoing pipe 16A. For this reason, compared with the structure which drains the hot water in the bathtub 18 of 1st Embodiment naturally from the discharge port 20A of the circulation port 20 via the follow-up outbound route pipe 16A, the hot water in the bathtub 18 is discharged | emitted in a short time. Can do.

  Further, in the drainage system 122, the drainage pump 124 is necessary. However, when the hot water in the bathtub 18 is discharged, it does not pass through the heat source unit 14, and the pressure loss of the drainage path is small. Therefore, the circulation pump 42 of the second embodiment. Compared with the structure which act | operates, the hot water in the bathtub 18 can be discharged | emitted in a short time.

  Furthermore, in the drainage system 122, the drainage pump 124 is disposed inside the apron 24 attached to the side portion of the bathtub 18, and it is easy to construct the drainage pump 124 when it is retrofitted.

[Fourth Embodiment]
Next, the bathroom system 10 including the drainage system 132 according to the fourth embodiment of the present invention will be described with reference to FIG. In addition, about the same component as 1st-3rd embodiment mentioned above, the same number is attached | subjected and the description is abbreviate | omitted.

  FIG. 8 is a block diagram of a control system of the bathroom system 10 including the drainage system 132 of the present embodiment. As shown in FIG. 8, the remote controller 72 of the bathroom 22 (see FIG. 1) is provided with a bathroom temperature sensor 134 as a bathroom temperature detecting means for detecting the temperature of the bathroom 22 (see FIG. 1). The temperature detection signal detected by the bathroom temperature sensor 134 is processed by the control unit 80 to measure the bathroom temperature. Information on the bathroom temperature is sent from the communication unit 82 of the remote controller 72 to the control unit 86 via the communication unit 88 of the control unit 74.

  Moreover, a bathroom heating dryer 136 is provided on the ceiling of the bathroom 22 (see FIG. 1). The controller 86 controls the operation of the bathroom heater / dryer 136.

  When it is detected that there is no movement of the bather for a predetermined time or more based on the position information of the bather in the bathtub 18 detected by the human sensor as an example of the biological information sensor 94, the control unit 86 detects the biological information. The blood pressure sensor as an example of the biological information sensor 94 when the heart rate of the bather detected by the heart rate sensor as an example of the sensor 94 is equal to or higher than a first threshold value as an example of a predetermined heart rate. When the blood pressure of the bather detected by the above becomes equal to or higher than a second threshold value as an example of the predetermined blood pressure, the three-way valve 30 is switched from the normal flow path to the first drainage path. As a result, the hot water in the bathtub 18 is discharged from the discharge port 20A of the circulation port 20 to the drain pipe 26 via the follow-up outgoing pipe 16A. Moreover, the control part 86 starts the heating operation of the bathroom heating dryer 136 based on the bathroom temperature detected by the bathroom temperature sensor 134 at the same time as discharging hot water in the bathtub 18. For example, when the bathroom temperature detected by the bathroom temperature sensor 134 is equal to or lower than a predetermined bathroom temperature (for example, 18 ° C. or lower), the control unit 86 starts the heating operation of the bathroom heater / dryer 136. In addition, the control part 86, for example, after a predetermined time (for example, 1 hour) has elapsed since the start of the heating operation of the bathroom heater / dryer 136, and the bathroom temperature is equal to or higher than a predetermined bathroom temperature (for example, 25 ° C. or higher). In any case, the heating operation of the bathroom heater / dryer 136 is stopped.

  In such a drainage system 132, the hot water in the bathtub 18 is discharged, and at the same time, the heating operation of the bathroom heating dryer 136 is started based on the bathroom temperature detected by the bathroom temperature sensor 134. The temperature rises. For this reason, it can prevent that a bather's state deteriorates by discharge | emission of the hot water in the bathtub 18. FIG.

[Fifth Embodiment]
Next, a bathroom system including the drainage system according to the fifth embodiment of the present invention will be described with reference to FIG. 9 and the like. In addition, about the same component as 1st-4th embodiment mentioned above, the same number is attached | subjected and the description is abbreviate | omitted.

  FIG. 9 is a flowchart of the control system of the drainage system of the present embodiment. The overall configuration of the drainage system of the present embodiment is the same as the overall configuration of the drainage system 12 of the first embodiment shown in FIG. Moreover, the block diagram of the control system of the drainage system of this embodiment is the same as the block diagram of the control system of the drainage system 12 shown in FIG. The drainage system of the present embodiment is different from the drainage system 12 of the first embodiment in that control for discharging hot water in the bathtub 18 is performed in order to prevent a bathing accident before it can become abnormal.

  As shown in FIG. 9, in step 150, it is determined whether or not a bather's bathing is detected in the bathtub 18. The control unit 86 (see FIG. 2) detects that the bather has taken a bath in the bathtub 18 based on the information on the hot water level detected by the water level sensor 96. For example, when there is a sudden rise in the water level detected by the water level sensor 96, it is because a bather has entered the bathtub 18, and it is determined that bathing has been detected (the presence of the bather is present). When bathing is detected, the time from the start of bathing is measured by a timer 90 (see FIG. 2) as bathing time measuring means. If bathing is not detected in step 150, step 150 is repeated until bathing is detected.

  When bathing is detected in step 150, it is determined in step 152 whether or not bathing in hot water having a temperature equal to or higher than the threshold has been performed for a predetermined time. In general, it is said that soaking in hot water for a long time is a cause of heat shock, and the publication of the Consumer Affairs Agency (January 20, 2016) states that “41 It is recommended as a safe bathing method that it goes up to less than 10 minutes with hot water at a temperature below ℃. In the present embodiment, in step 152, it is determined whether or not bathing in hot water having a temperature equal to or higher than a threshold (for example, 40 ° C.) for a predetermined time (for example, 10 minutes). That is, in the present embodiment, the hot water temperature sensor 98 and the timer 90 that measures the bathing time of the bather in the bathtub 18 function as “bathing state detection means”. If it is determined in step 152 that the bath has not been bathed in hot water having a temperature equal to or higher than a threshold (for example, 40 ° C.) for a predetermined time (for example, 10 minutes), the process returns to step 152.

  If it is determined in step 152 that the bath has been bathed in hot water having a temperature equal to or higher than a threshold (for example, 40 ° C.) for a predetermined time (for example, 10 minutes), information for prompting attention from the speaker 100 of the remote controller 72 in step 154 Is output. For example, the speaker 100 outputs information for calling attention such as “Please get out of the bath because there is a risk of a bathing accident”.

  Further, in step 156, it is determined whether or not the bather is absent in the bathtub 18. The control unit 86 (see FIG. 2) determines whether there is no bather in the bathtub 18 based on the information on the hot water level detected by the water level sensor 96. For example, when the water level of the hot water detected by the water level sensor 96 has fallen sharply, it is because the bather has left the bathtub 18 and it is determined that the bather is absent. If it is determined in step 152 that there is no bather, the control of the drainage system of this embodiment is terminated.

  On the other hand, if it is determined in step 156 that there is no bather, it is determined in step 158 whether or not a certain period of time has elapsed after calling attention. In the present embodiment, it is determined whether or not a certain time (for example, 3 minutes) has elapsed after alerting. If it is determined in step 158 that a certain period of time has not elapsed after alerting, the process returns to step 156.

  If it is determined in step 158 that a certain time has elapsed after alerting, in step 160, notification is made that hot water in the bathtub 18 is discharged from the speaker 100 of the remote controller 72. In this embodiment, the speaker 100 informs the user that “a bathing accident may occur, so the hot water in the bathtub is discharged.”

  Next, in step 162, the three-way valve 30 is switched from the heat source unit 14 (see FIG. 1) side to the discharge side (drain pipe 26 side). More specifically, the three-way valve 30 is switched from the normal flow path to the first drainage path. Thereby, the hot water in the bathtub 18 is discharged from the drain pipe 26 through the discharge port 20A of the circulation port 20 and the follow-up outgoing pipe 16A.

  In the drainage system of the present embodiment, when bathing in hot water having a temperature equal to or higher than a threshold (for example, 40 ° C.) for a predetermined time (for example, 10 minutes), an alert is urged, and subsequently, for a certain time (for example, 3 minutes) When bathing, the hot water in the bathtub 18 is forcibly discharged. For this reason, bathing accidents such as heat shock can be prevented.

  In the drainage system of the present embodiment, a drainage stop button as drainage stop means may be provided on the remote controller 72 (see FIG. 3). For example, when it is notified in step 160 that the hot water in the bathtub 18 is to be discharged from the speaker 100 of the remote controller 72, the bather manually presses the drain stop button of the remote controller 72 (see FIG. 3). You may make it stop that the hot water in the inside is discharged forcibly.

  In the fifth embodiment, the overall configuration of the drainage system is the same as the overall configuration of the drainage system 12 of the first embodiment, but the present invention is not limited to this configuration. For example, in the fifth embodiment, the entire configuration of the drainage system 112 of the second embodiment or the entire configuration of the drainage system 122 of the third embodiment may be applied. In the fifth embodiment, the presence or absence of a bather is detected by the water level sensor 96 in step 150 or the like. Instead, for example, by a human sensor as an example of the biological information sensor 94 (see FIG. 2). The presence or absence of a bather may be detected.

[Sixth Embodiment]
Next, a bathroom system including the drainage system according to the sixth embodiment of the present invention will be described with reference to FIG. In addition, about the same component as 1st-5th embodiment mentioned above, the same number is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 10, in the drainage system 172 of this embodiment, instead of the biological information sensor 94 (see FIG. 1) provided in the remote controller 72 of the first embodiment, the biological information sensor 94 is provided on the inner wall of the bathtub 18. Is provided. The biological information sensor 94 is electrically connected to the remote controller 72, and a signal detected by the biological information sensor 94 is transmitted to the control unit 80 (see FIG. 2) of the remote controller 72. As the biological information sensor 94, for example, a human sensor as a human body detecting means for detecting the position of a person in the bathroom 22, a heart rate sensor as a heart rate detecting means for detecting a bather's heart rate, a bather's At least one or more blood pressure sensors or the like as blood pressure detection means for detecting blood pressure are provided. In the present embodiment, a human sensor, a heart rate sensor, and a blood pressure sensor are provided as the biological information sensor 94. Control for switching the three-way valve 30 of the drainage system 172 based on the biological information detected by the biological information sensor 94 is the same as in the first embodiment.

  In this drainage system 172, when it is detected by the human sensor that there is no movement of the bather in the bathtub 18 for a certain time or more, when the heart rate of the bather in the bathtub 18 becomes equal to or higher than the first threshold, Alternatively, when the blood pressure of the bather in the bathtub 18 becomes equal to or higher than the second threshold, the three-way valve 30 is switched from the normal flow path to the first drainage path. Thereby, the hot water in the bathtub 18 is discharged to the drainage pipe 26 via the discharge port 20A of the circulation port 20 and the follow-up outgoing pipe 16A.

  In the drainage system of the modified example of the sixth embodiment, the biological information sensor 94 is provided on the ceiling 23 of the bathroom 22 instead of the biological information sensor 94 (see FIG. 1) provided in the remote controller 72 of the first embodiment. (Refer to the two-dot chain line in FIG. 10). The signal detected by the biological information sensor 94 is electrically connected to the remote controller 72, and the signal detected by the biological information sensor 94 is transmitted to the control unit 80 (see FIG. 2) of the remote controller 72. It has become. As the biological information sensor 94, for example, at least one of a human sensor, a heart rate sensor, a blood pressure sensor, and the like is provided. In the present embodiment, a human sensor, a heart rate sensor, and a blood pressure sensor are provided as the biological information sensor 94. Control for switching the three-way valve 30 of the drainage system 172 based on the biological information detected by the biological information sensor 94 is the same as in the first embodiment.

  In the sixth embodiment and its modifications, the configuration other than the biological information sensor is the same as the drainage system using the three-way valve 30 or the like of the first embodiment. It is not limited to. For example, the configuration other than the biological information sensor may be changed to the configuration of the drainage system of the second to fourth embodiments. In addition, the position where the biological information sensor 94 is provided is not limited to the inner wall of the bathtub 18 or the ceiling 23 of the bathroom 22 in the sixth embodiment and its modifications, and may be changed to another position in the bathroom 22. Good.

[Supplementary explanation]
In the drainage system 132 of the fourth embodiment, the controller 86 moves the bather for a certain time or more based on the position information of the bather in the bathtub 18 detected by the human sensor as an example of the biological information sensor 94. When it is detected that the heart rate of the bather detected by the heart rate sensor as an example of the biological information sensor 94 becomes equal to or higher than a first threshold value as an example of a predetermined heart rate, or When the blood pressure of the bather detected by the blood pressure sensor as an example of the biological information sensor 94 becomes equal to or higher than the second threshold value as an example of the predetermined blood pressure, the three-way valve 30 is turned on as in the first embodiment. Although the normal flow path is switched to the first drainage path, the present invention is not limited to this configuration. For example, instead of the three-way valve 30, the three-way valve 114 of the second embodiment may be provided. Moreover, the drainage pump 124 of the third embodiment may be combined with the drainage system 132 of the fourth embodiment.

  Moreover, in 1st-4th embodiment, the control part 86 is based on the positional information on the bather in the bathtub 18 detected with the human sensor as an example of the biometric information sensor 94, and a bather's movement is fixed time. When it is detected that there is no more, when the heart rate of the bather detected by the heart rate sensor as an example of the biological information sensor 94 becomes equal to or higher than the first threshold as an example of the predetermined heart rate, or When a bather's blood pressure detected by a blood pressure sensor as an example of the biological information sensor 94 becomes equal to or higher than a second threshold value as an example of a predetermined blood pressure, Although the three-way valve is switched to the discharge side (the drain pipe 26 side), the present invention is not limited to this configuration. For example, in the drainage system, any one of a human sensor, a heart rate sensor, and a blood pressure sensor may be provided as the biological information sensor 94, or any two of the human sensor, heart rate sensor, and blood pressure sensor may be provided. You may combine.

  Moreover, in the drainage system of the first to fourth embodiments and the sixth embodiment, when the detection information condition of any one of the human sensor, the heart rate sensor, and the blood pressure sensor is satisfied, Although the three-way valve as the path switching valve is switched to the discharge side (drain pipe 26 side), when the condition of detection information of any two or more of the human sensor, heart rate sensor, and blood pressure sensor is satisfied, A three-way valve as a path switching valve on the side of the bathtub 18 may be switched to the discharge side (the drain pipe 26 side). For example, based on the position information of the bather in the bathtub 18 detected by the human sensor, it is detected that there is no movement of the bather for a certain period of time, and the heart rate of the bather detected by the heart rate sensor is When it becomes more than the 1st threshold, you may make it switch the three-way valve as a path switching valve of the side of bathtub 18 to the discharge side (the side of drainage piping 26). Further, for example, based on the position information of the bather in the bathtub 18 detected by the human sensor, it is detected that there is no movement of the bather for a certain period of time, and the blood pressure of the bather detected by the blood pressure sensor is When the second threshold value or more is reached, the three-way valve as the path switching valve on the side of the bathtub 18 may be switched to the discharge side (the drain pipe 26 side). Further, when the conditions of the detection information of the other two centers are satisfied, the three-way valve as the path switching valve on the side of the bathtub 18 may be switched to the discharge side (the drain pipe 26 side). Further, when the conditions of the detection information of the three centers are satisfied, the three-way valve as the path switching valve on the side of the bathtub 18 may be switched to the discharge side (the drain pipe 26 side).

  In the first to sixth embodiments, the three-way valve 30 and the drain pipe 26 for draining the water stored in the drain tank 48 using the follow-up outgoing pipe 16A are provided. Although the drain pipe 26 is also used as the three-way valves 30 and 114 and the drain pipe 26 for discharging hot water from the bathtub 18, the present invention is not limited to this configuration. For example, the drainage system according to the present invention is applied to a bathroom system in which the drain tank 48 and the drain pipe 66 are not provided (drain drainage is not performed) and a circulation pipe for remedy is provided. be able to. In this case, the three-way valves 30 and 114 as the path switching valves and the drainage pipe 26 are retrofitted to the remedy outgoing pipe 16A. Even in this case, the three-way valves 30 and 114 and the drainage pipes 26 as the path switching valves can be installed with the apron 24 on the side of the bathtub 18 removed. For this reason, the construction work does not become large, and the three-way valves 30 and 114 as the path switching valves and the drain pipe 26 can be installed at low cost.

  Although the embodiments of the present invention have been described with reference to the embodiments, these embodiments are merely examples, and various modifications can be made without departing from the scope of the invention. Further, it goes without saying that the scope of rights of the present invention is not limited to these embodiments and can be implemented in various modes without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 10 ... Bathroom system, 12 ... Drainage system, 14 ... Heat source machine, 16 ... Circulation piping, 16A ... Remembrance outbound route tube, 16B ... Remembrance return route tube, 18 ... Bath, 20 ... Circulation port, 20A ... Discharge port (circulation port) ), 20B ... suction port (circulation port), 22 ... bathroom, 24 ... apron, 26 ... drainage piping, 28 ... drainage port, 30 ... three-way valve (path switching valve), 42 ... circulation pump, 48 ... drain tank, 54 DESCRIPTION OF SYMBOLS ... Gas burner, 66 ... Drain piping, 72 ... Remote control (remote controller), 74 ... Control unit (control part), 86 ... Control part, 90 ... Timer (bathing time measuring means, bathing state detection means), 94 ... Biological information sensor (Heart rate detection means, human body detection means, blood pressure detection means, bathing state detection means), 96 ... water level sensor (bathing state detection means), 98 ... hot water temperature sensor (hot water temperature detection means, bathing state detection means) DESCRIPTION OF SYMBOLS 100 ... Speaker (notification means) 112 ... Drainage system, 114 ... Three-way valve (path switching valve), 122 ... Drainage system, 124 ... Drainage pump, 132 ... Drainage system, 134 ... Bathroom temperature sensor (bathroom temperature detection means), 136 ... Bathroom heating dryer, 172 ... Drain system

Claims (13)

A circulation pipe for remedy provided with a memorial outbound pipe and a memorial return pipe,
The heat source machine that heats the hot water flowing from the memorial return pipe to the memorial forward pipe using the heat of a gas burner, while the memorial forward pipe and the memorial return pipe are connected,
Provided in the bathtub and connected to the remedy outgoing pipe and the remedy return pipe, respectively, supply hot water from the remedy outgoing pipe into the bathtub, and supply the hot water in the bathtub to the remedy return pipe A circulation port for inhalation;
A circulation pump that is provided in the heat source unit and circulates hot water through the remedy return pipe and the remedy forward pipe;
A drainage pipe having a drain outlet from which the hot water is discharged while being branched from the memorial outgoing pipe;
A normal flow path that is provided at a branch portion between the follow-up outgoing pipe and the drain pipe, and hot water flows from the follow-up outgoing pipe to the circulation port, and hot water in the bathtub passes through the circulation opening and the follow-up route. A path switching valve for switching to the drainage pipe through the pipe, or for switching the hot water in the bathtub from the circulation port and the follow-up return pipe to the drainage pipe through the follow-out pipe.
A control unit for controlling the switching operation of the path switching valve;
Having a drainage system. Bathing state detection means for detecting a predetermined bathing state in which the bather in the bathtub may become abnormal,
The drainage system according to claim 1, wherein the control unit switches the path switching valve from the flow path to the drainage path when a predetermined bathing state is detected by the bathing state detection means. The path switching valve is configured to switch between the flow path and a first drain path through which hot water in the bathtub flows to the drain pipe via the circulation port and the follow-up outbound pipe.
The drainage system according to claim 1 or 2, wherein the drainage port is disposed at a position lower than a height of the circulation port. A drainage pump for flowing hot water in the bathtub from the tracking path pipe to the drain pipe between the path switching valve and the circulation port in the tracking path path;
The drainage system according to claim 3, wherein the control unit operates the drainage pump in a state where the path switching valve is switched from the flow path to the first drainage path. The path switching valve is configured to switch between the flow path and a second drainage path in which hot water in the bathtub flows from the circulation port and the follow-up return pipe to the drain pipe via the follow-out pipe. And
The drainage system according to claim 1 or 2, wherein the control unit operates the circulation pump in a state where the path switching valve is switched from the flow path to the second drainage path.   The drainage system according to any one of claims 1 to 5, wherein the path switching valve is disposed inside an apron that is detachably attached to a side portion of the bathtub.   The drainage system according to claim 4, wherein the drainage pump is disposed inside an apron that is detachably attached to a side portion of the bathtub. Provided in the heat source machine, connected to a drain pipe branched from the side of the retrace return pipe, and provided with a drain tank for storing water neutralized acidic water generated by latent heat recovery,
The drainage pipe and the path switching valve are configured to also serve as a drainage pipe and a three-way valve arranged for discharging water from the drain tank through the tracking forward path pipe. The drainage system according to any one of Items 7 to 7. The bathing state detection means is at least one of heart rate detection means for detecting the heart rate of the bather in the bathtub, human body detection means for detecting the position of the bather, and blood pressure detection means for detecting the blood pressure of the bather. With the above,
The controller controls the path switching valve from the flow path based on the bathing state of the bather based on information detected by at least one of the heart rate detecting means, the human body detecting means, and the blood pressure detecting means. The drainage system according to claim 2 which switches to a route. The bathing state detecting means comprises hot water temperature detecting means for detecting the temperature of hot water stored in the bathtub, and bathing time measuring means for measuring the bathing time of the bather in the bathtub,
The said control part switches the said path switching valve from the said flow path to the said drainage path based on the temperature of the hot water detected by the said hot water temperature detection means, and the bathing time detected by the said bathing time measurement means. Drainage system as described in. Bathroom temperature detecting means for detecting the temperature of the bathroom;
A bathroom heating dryer provided in the bathroom and raising the temperature of the bathroom,
The said control part operates the said bathroom heating dryer based on the temperature of the said bathroom detected by the said bathroom temperature detection means in the state which switched the said path switching valve from the said flow path to the said drainage path. Or the drainage system of Claim 10. Provided in the bathroom and provided with a remote controller with a notification means for outputting sound,
The said control part alert | reports from the said alerting | reporting means that the hot water in the said bathtub is discharged | emitted before switching the said path switching valve from the said flow path to the said drainage path. The drainage system according to item 1. A drainage system according to any one of claims 1 to 12,
A bathtub in which hot water heated by the heat source device provided in the drainage system is stored;
Having a bathroom system.

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