KR102268873B1 - A hot air fan - Google Patents

Abstract

Disclosed is a hot air fan capable of supplying adequate oxygen. A hot air blower capable of adequately supplying oxygen according to the present invention includes: a casing in which a combustion unit is provided on one inner side and a heat exchange unit is provided on the other side of the inner side to receive the heated air heated from the combustion unit and exchange heat with air to be exchanged; an outdoor air inlet blower connected to the casing adjacent to the combustion unit to introduce external air into the space in which the combustion unit is provided; and a suction pressure providing blower connected to the casing adjacent to the heat exchange unit to provide a predetermined suction pressure to the heated air and to discharge the heated air heat-exchanged with the air to be exchanged to the outside, wherein the outside air inlet blower comprises the outside air and a balance adjusting unit capable of adjusting the balance between the inflow of external air per unit time to the combustion unit by the inflow blower and the discharge of heated air per unit time by the suction pressure providing blower. According to the present invention, the balance between the amount of air supplied into the combustion chamber through the outdoor air inlet blower through the balance control unit including the opening degree control plate and the oversupply air discharge pipe and the amount of forced intake exhaust air that is forcibly discharged to the outside through the suction pressure providing blower. Since it can be easily adjusted, it is possible to induce complete combustion of the object without adding a complicated structure inside the combustion chamber.

Description

A hot air fan

The present invention provides a structure that can easily and efficiently control/maintain the balance between the air supply amount and the forced intake discharge amount, that is, the static pressure of blowing into the combustion chamber space and the static pressure of forced intake and discharge to the outside of the combustion chamber can be adjusted substantially the same/similarly Thus, it relates to a hot air heater capable of supplying adequate oxygen to induce complete combustion of an object.

In general, the hot air blower is used for heating, and in particular, as an indispensable device in winter, it is divided into various types depending on the structure of the body, the location of the furnace, and the type of fuel used. It can be divided into oil heaters that use heating oil as fuel, LNG gas boilers that use LNG gas as fuel, and wood heaters that use wood as fuel.

The wood warmer uses heat generated by burning wood such as pellets, briquettes, firewood, small wood, and waste wood, and has relatively low thermal efficiency, but has a high cost-effectiveness compared to fuel cost. It is widely used in facilities, etc.

The following Patent Document 1, Republic of Korea Patent Publication No. 10-1535983 (hereinafter referred to as 'prior art') relates to a firewood hot air fan, and a fuel input door into which the firewood fuel is injected and a re-discharge provided at the lower part of the fuel input door. An external housing partitioned into a combustion chamber in which a door is opened and closed, a flue from which combustion gas is exhausted to the outside is combined, and a combustion chamber in which the wood fuel is burned, and a heat exchange chamber in which the combustion heat generated in the combustion chamber and heating air are exchanged; A blower disposed on one side of the flue to form a suction pressure so that outside air is introduced into the combustion chamber through the fuel input door and the re-discharge door, and the combustion chamber is disposed in the lower part and the coal fuel is loaded on the upper part, A configuration including a combustion port for supplying air as the wood fuel to initiate primary combustion is proposed.

That is, a structure in which wood is burned through forced intake by a blower and air supply to the combustion chamber through a combustion port is applied. As it has a structure that is difficult to maintain, a complex internal structure for complete combustion of firewood is required as there is no method and structure for the operator to identify whether an appropriate amount of air is supplied into the combustion chamber. Not only that, but complete combustion is not easy, so there may be a problem of severe smoke generation.

Therefore, the applicant of the present applicant can easily check the imbalance between the air supply static pressure during air supply through the combustion port and the air discharge static pressure during forced air intake and discharge with the naked eye, so that the balance between the two sides can be maintained more smoothly. We propose a structure that can do this.

Republic of Korea Patent Publication No. 10-1535983 (registered on July 6, 2015)

The present invention has been devised to solve the above-mentioned conventional problems, and it is easy and efficient to control/maintain the balance between the air supply amount and the forced intake discharge amount, that is, the static pressure of blowing into the combustion chamber space and the static pressure of forced intake and discharge to the outside of the combustion chamber. An object of the present invention is to provide a hot air heater capable of inducing complete combustion of an object by providing a structure that can control substantially the same / similarly.

According to an aspect of the present invention, a casing in which a combustion unit is provided on one side of the inside and a heat exchange unit is provided on the other side of the inside to receive the heated air heated from the combustion unit and exchange heat with the air to be exchanged; an outdoor air inlet blower connected to the casing adjacent to the combustion unit to introduce external air into the space in which the combustion unit is provided; and a suction pressure providing blower connected to the casing adjacent to the heat exchange unit to provide a predetermined suction pressure to the heated air and to discharge the heated air heat-exchanged with the air to be exchanged to the outside, wherein the outside air inlet blower comprises the outside air There is provided a hot air heater including a balance adjustment unit capable of adjusting a balance between an inflow of external air per unit time to the combustion unit by an inflow blower and a discharge amount of heated air per unit time by the suction pressure providing blower.

The outdoor air inlet blowing unit includes an outdoor air inlet blowing fan and an outdoor air inlet air pipe communicating with the outdoor air inlet blowing fan to form a flow path, and the balance adjusting unit may include: an opening degree adjusting plate capable of adjusting the outdoor air inlet opening degree of the outdoor air inlet blowing fan; And it is provided in the form of an outdoor air inlet blower pipe and a double pipe inside the outside air inlet blower pipe, one side is in communication with the inside of the casing and the other side is in the form of an L-shaped tube that communicates with the outside. It may include an exhaust pipe.

An air flow plate in which a first hole is provided in a central region to insert the oversupply air exhaust pipe and a plurality of second holes are provided around the first hole may be further provided inside the outdoor air inlet blower pipe.

The outdoor air inlet blower includes an outdoor air inlet blowing fan and an outdoor air inlet air pipe communicating with the outdoor air inlet blowing fan to form a flow path, and the balance adjusting unit may include: an opening degree adjusting plate capable of adjusting the degree of opening of the outdoor air inlet of the outdoor air inlet blowing fan; and an oversupply air discharge pipe having one end communicating with the space inside the outdoor air inlet blower pipe and the other end communicating with the outside so that the air oversupplied into the casing can be discharged to the outside,

The balance control unit may further include an automatic opening control plate driving unit for automatically driving the opening control panel by detecting a degree of discharge of the air discharged through the oversupply air discharge pipe.

The automatic driving unit for the opening control plate includes: a stepping motor for rotating the opening control plate in a step manner; an air exhaust detection sensor for detecting the degree of air discharged from the oversupplied air exhaust pipe; and a control unit configured to receive the detection value of the air exhaust detection sensor and control the rotation of the stepping motor.

The automatic driving unit for the opening control plate includes: a stepping motor for rotating the opening control plate in a step manner; a hinge rotation part provided to be hinge-rotatable on the inner surface of the auxiliary discharge pipe connected to the discharge port of the oversupply air discharge pipe; a plurality of limit switches provided in the auxiliary discharge pipe so as to be in contact with the hinge rotating part when the hinge rotating part rotates in one or the other direction; and a control unit configured to receive the detection value of the limit switch and control the rotation of the stepping motor.

The balance adjustment unit is connected to the outlet of the oversupply air outlet in communication with the discharge auxiliary pipe made of a transparent or translucent material; a hinge rotation part provided on the inner surface of the auxiliary discharge pipe to be hinged rotatably; and a scale formed on the auxiliary discharge pipe to check the degree of rotation of the hinge rotating part.

According to the hot air blower of the present invention described above, the amount of air supplied into the combustion chamber through the outdoor air inlet blower through the balance control section including the opening degree control plate and the oversupply air outlet pipe and the forced suction discharge that is forcibly discharged to the outside through the suction pressure providing blower Since the balance between the amount of air can be easily adjusted, it is possible to induce complete combustion of the object without adding a complicated structure inside the combustion chamber.

In addition, by additionally providing an air flow plate inside the outdoor air inlet blower pipe, the oversupplied air can be quickly discharged to the outside, and the optimum balance can be set to self degree through the automatic drive unit of the opening control plate, which further reduces the labor force of workers. can do.

1 is a side view showing a hot air heater according to a first embodiment of the present invention;
2 is a front cross-sectional view showing a hot air heater according to a first embodiment of the present invention;
3 is a cross-sectional view showing an outdoor air inlet blower of the warm air blower according to the first embodiment of the present invention;
4 is a cross-sectional view showing a modification of FIG. 3;
5 and 6 are views showing the balance control unit adjustment according to the air flow inside the oversupply air discharge pipe in the hot air blower according to the first embodiment of the present invention;
7 is a cross-sectional view showing another modified example of FIG. 3;
8 is a cross-sectional view showing an outdoor air inlet blower of a hot air heater according to a second embodiment of the present invention;
9 is a cross-sectional view showing an outdoor air inflow blower of a hot air blower according to a third embodiment of the present invention;
10 is a cross-sectional view showing an outdoor air inlet blower of a hot air heater according to a fourth embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and the scope of the invention to those of ordinary skill in the art will be completely It is provided to inform you. In the drawings, like reference numerals refer to like elements.

According to a preferred embodiment of the present invention, a hot air machine capable of supplying adequate oxygen (hereinafter, a 'warm air machine') uses heat generated in the process of burning wood, etc. to heat the air to be exchanged and supply it to an appropriate place, etc.) and the amount of air supplied for combustion and the forced intake discharge for forcibly sucking and discharging the heat-exchanged air after being supplied to the inside to promote complete combustion of the object.

In other words, if the amount of air supplied to the inside of the hot air blower is greater than the forced intake emission by a certain amount, the combustion process of the object proceeds rapidly due to the excessive supply of air, making it difficult to secure sufficient heat exchange time. There is a problem in that soot and carbon dioxide are generated, so it is necessary to properly control the balance between the two sides.

The present invention is a structure in which the operator can easily and efficiently control/maintain the balance between the air supply amount and the forced intake discharge, that is, the static pressure of blowing into the combustion chamber space and the static pressure of forced intake and discharge to the outside of the combustion chamber can be adjusted substantially the same/similarly It is possible to induce complete combustion of the object by providing it.

Hereinafter, the present invention will be described in detail with reference to various embodiments.

1 to 3, the hot air blower according to the first embodiment of the present invention includes a casing 100, an outdoor air inlet blower 110, a suction pressure providing blower 120, and a balance control unit 130. includes

First, the casing 100 forms an external appearance, and the combustion unit 101 is provided on one side of the inside, and the heating air heated from the combustion unit 101 is supplied to the other side of the inside, and the heat exchange unit 102 exchanges heat with the air to be exchanged. is provided

Hereinafter, the structure and operation of the inside of the casing including the combustion unit 101 and the heat exchange unit 102 will be described before describing the next configuration.

The warm air blower according to an embodiment of the present invention uses, for example, a synthetic wood such as a briquette made by aggregating solid wood or sawdust cut to a predetermined size in a predetermined shape as fuel (hereinafter, 'wood'), and Combustion heat generated during combustion is used to heat the air to be exchanged, and the heat-exchanged air to be exchanged can be supplied to a heating facility or drying device that requires heating or drying using warm air to be used as heating heat or drying heat.

Hereinafter, the air supplied to the combustion unit 101 from the outside to burn wood, heated in the combustion unit 101, and then supplied to the heat exchange unit 102 is referred to as 'heating air', and the air supplied to the heat exchange unit 102 from the outside is referred to as 'heating air'. The air supplied to the heating facility or drying device after heat exchange with the heated air supplied to and heated by the combustion unit 101 and supplied to the heat exchange unit 102 is referred to as heat exchange target air.

The combustion unit 101 burns wood through external air supply to generate heated air, and a combustion reserve chamber 103 , a main combustion chamber 104 , and a re-receiving chamber 105 are formed.

The pre-combustion chamber 103 is disposed on the upper portion of the inner space of the casing 100 and is a space in which wood is loaded, and specifically, a space in which an operator can temporarily load wood before combustion through a wood inlet provided in the casing. In addition, a diaphragm for partitioning the preliminary combustion chamber 103 and the main combustion chamber 104 is provided, and the diaphragm may be configured to completely or partially block the preliminary combustion chamber 103 and the main combustion chamber 104 . Accordingly, the heat generated in the main combustion chamber 104 can heat the lower part of the diaphragm without being invaded into the combustion spare chamber 103. At this time, the temporarily loaded wood positioned on the upper part of the diaphragm heated by the heat is the heated diaphragm. It can be dried by the heat of the combustion reserve chamber 103 heated by the

On the other hand, when it is necessary to replenish the wood burned in the main combustion chamber 104, the dried wood is moved to the main combustion chamber 104 after being accommodated in the preliminary combustion chamber 103. The wood movement may be made manually by a worker, or may be configured to fall directly from the combustion reserve chamber 103 to the main combustion chamber 104, for example, by forming a rotatable structure in a part of the diaphragm by a separate hinge to make this possible can do.

In the embodiment of the present invention, the main combustion chamber 104 is a space that is disposed in the lower portion of the combustion reserve chamber 103 and generates heating air by receiving external air and burning the wood inputted therein.

1 and 2, the outdoor air inlet blower 110 is connected to the casing 100 adjacent to the combustion unit 101, and specifically supplies outdoor air into the main combustion chamber 104 (to the wood to be burned). It is connected to continuously supply oxygen), which will be described later in more detail.

Next, the ash receiving chamber 105 is disposed in the lower portion of the main combustion chamber 104 and receives the ash discharged from the lower portion of the main combustion chamber 104 and receives heated air heated in the main combustion chamber 104. The heated air generated in the dissipation 104 flows to the heat exchange unit 102 . The re-receiving chamber 105 and the main combustion chamber 104 have a state of being partitioned through a separate diaphragm, and the central portion of the diaphragm has heated air and ashes to move from the main combustion chamber 104 to the re-receiving chamber 105. It is preferable that a redistribution port (not shown) is formed. Here, the redistribution port (not shown) is configured so that the flame, heated air, and ash generated by the combustion of wood in the lower part of the main combustion chamber 104 can be moved to the re-receiving chamber 105 , and is located in the lower part of the main combustion chamber 104 . It may have a predetermined length and width in the longitudinal direction or the width direction and may be configured in a cut form.

In the embodiment of the present invention, as shown in FIG. 2 , a heating air flow path 106 is provided so that the heating air of the re-receiving chamber 105 can flow to the heat exchange unit 102 .

The heat exchange unit 102 is a part that receives heated air from the re-receiving chamber 105 and exchanges heat with the air to be exchanged, and transfers heat energy of the heated air in a relatively high temperature state to the air to be exchanged to heat the air to be exchanged. .

Specifically, the heat exchange unit 102 is provided at a position spaced apart from the combustion unit 101, a plurality of heat exchange pipes 107 are arranged, and the air to be exchanged flows in each of the plurality of heat exchange pipes 107 and heat exchanges. The outside of the pipe 107 may be configured to flow the heated air via the heated air flow path (106).

As shown in FIG. 2 , a separate heat exchange air blower (not shown) is provided outside the casing 100 to supply the heat exchange air to the heat exchange pipe 107, and air in the atmosphere is blown through the heat exchange pipe ( 107) The air to be exchanged supplied to the inside and heated by heat exchange in the heat exchange pipe 107 is supplied to the outside of the casing 100 by the suction and blowing force of the air to be exchanged air blower (not shown) further mounted on the outside of the casing 100 to discharge the air to be exchanged. (not shown) may be supplied to a heating facility or a drying device.

When a plurality of heat exchange pipes 107 are horizontally arranged in the inner space of the casing 100 left and right or front and rear to receive the heat of the heating air flowing from the lower portion of the inner space of the casing 100 to the upper portion, various shapes and arrangements are provided. can be achieved A separate space is formed inside the casing 100 so as not to be mixed with the heated air flowing along the inside of the heat exchange unit 102 while communicating with the inside of the heat exchange pipe 107, and this separate space is provided by a heat exchange air blower (not shown). city) to receive the heat exchanged air.

As shown in FIG. 2 , a constant suction pressure is provided to the heating air (heated air whose temperature has decreased by more than a certain level through heat exchange with the heat exchange pipe) having completed the heat exchange action with the heat exchange pipe 107 at the upper portion of the casing 100 At the same time, a suction pressure providing blower 120 for rapidly discharging the heated air to the outside of the casing 100 is provided.

That is, the suction pressure providing blower 120 provides suction pressure to the heated air sequentially flowing into the inner space of the heat exchange chamber provided with the main combustion chamber 104, the re-receiving chamber 105, and the heat exchange pipe 107, It provides the effect of allowing the heating air of the dissipation chamber 104 to flow smoothly inside the casing 100 , specifically, the heat exchange chamber.

The correlation between the outdoor air inlet blowing unit 110 and the suction pressure providing blowing unit 120, which is one of the characteristic parts of the present invention, will be described in more detail below.

The heated air that has transferred heat energy to the air to be exchanged in the heat exchange unit 102 has a lower temperature than the temperature in the combustion unit 101 and is discharged into the atmosphere. The heated air discharged to the outside through the upper part of the casing 100 adjacent to the heat exchange unit 102 may be directly discharged into the atmosphere, but as shown in FIG. 2, after passing through the dust collector 109, to be discharged into the atmosphere. can The dust collector 109 collects dust, such as ash, contained in heated air (hereinafter, 'waste heat air') discharged into the atmosphere, and a cyclone dust collection type may be applied.

The waste heat air discharged to the outside of the casing 100 is separated from the foreign materials while turning inside the dust collector 109, the separated foreign materials fall downward and are accumulated, and the remaining air is discharged to the outside through the waste heat air discharge pipe 108, and the waste heat air As described above, the suction pressure providing blower 120 for providing suction pressure is installed in the discharge pipe 108 .

Hereinafter, complete combustion of wood is maintained by maintaining a balance between the amount of air supplied for combustion of an object (wood, etc.) and the forced intake discharge for forcibly sucking and discharging the air (the waste heat air) that has been supplied to the inside and has completed heat exchange. One of the characteristic parts of the present invention to promote the will be described.

1 to 3 , the hot air blower according to the embodiment of the present invention includes an outdoor air inlet blower 110 and a suction pressure providing blower 120 .

The outdoor air inlet blowing unit 110 is connected to the casing 100 adjacent to the combustion unit 101 to introduce the outside air into the space in which the combustion unit 101 is provided, specifically, the main combustion chamber 104 , and the outdoor air inflow blowing unit 110 is connected to the casing 100 adjacent to the combustion unit 101 . and a fan 111 and an outdoor air inlet blower pipe 113 communicating with the outdoor air inlet blowing fan 111 to form a flow path.

In addition, as shown in FIG. 2 , the suction pressure providing blower 120 is connected to the casing 100 adjacent to the heat exchange unit 102 to provide a predetermined suction pressure to the heated air and heated air exchanged heat with the air to be exchanged. As discharging (waste heat air) to the outside, it may be installed on the waste heat air discharge pipe 108 as described above. Meanwhile, in the related drawings, the structure in which the waste heat air discharge pipe 108 is inserted into the dust collector 109 is shown, but the present invention is not limited thereto. When the dust collector 109 is omitted, the waste heat air discharge pipe 108 is disposed in the casing 100. It may be directly connected, and the suction pressure providing blower 120 may be installed on the waste heat air discharge pipe 108 to directly discharge the waste heat air to the outside.

The warm air blower according to the embodiment of the present invention allows the operator to easily and efficiently adjust/maintain the balance between the amount of air supplied through the outdoor air inlet blower 110 and the forced suction discharge through the suction pressure providing blower 120 . Ultimately, it contains a structure that can induce complete combustion of wood.

To this end, as shown in FIG. 3 , the outdoor air inflow blower 110 has the amount of outside air inflow per unit time to the combustion unit 101 side by the outside air inflow blower 110 by the suction pressure providing blower 120 . If it is greater than the amount of heating air (waste heat air) per unit time by a certain amount, it adjusts the balance between the amount of outside air inflow per unit time and the amount of heated air discharged per unit time, specifically, a balance control unit 130 that can discharge the air flowing into the casing to the outside for a certain amount or more. ) is included.

In the embodiment of the present invention, the balance control unit 130 includes an opening degree control plate 131 and an oversupply air discharge pipe 132 .

The opening degree control plate 131 is rotatably provided in the vicinity of the outdoor air inlet 112 to adjust the opening degree of the outdoor air inlet 112 of the outdoor air inlet blowing fan 111 . In addition, the opening degree control plate 131 is provided to be rotatable with respect to the blower fan housing so that the opening degree can be adjusted, and when the opening degree adjustment is completed by the user, it is fixed through a separate fixing means so that the adjusted opening degree can be maintained. Here, the fixing means may be applied as a bolt capable of suppressing rotation of the opening degree control plate 131 by pressing the outer surface of the housing of the outdoor air inflow fan 111 . The operator adjusts the opening degree of the outdoor air inlet 112 of the outdoor air inlet blowing fan 111 by rotating the opening control plate 131 to adjust the amount of outdoor air inflow per unit time to the combustion unit 101 side.

The oversupply air discharge pipe 132 is provided in the form of an outdoor air inlet blower pipe 113 and a double pipe inside the outside air inlet blower pipe 113 . The oversupply air discharge pipe 132 is formed in an L-shaped tube shape with one side communicating with the inside (main combustion chamber) of the casing 100 and the other side communicating with the outside, and the air oversupplied into the casing 100 is oversupplied air By being automatically discharged to the outside through the discharge pipe 132, the above-described balance, that is, the static pressure of blowing into the casing 100 and the static pressure of forced suction and discharge to the outside can be adjusted substantially the same / similarly.

In other words, when a difference between the blowing amount of the outdoor air inlet blower 110 and the suction discharge amount of the suction pressure providing blower 120 occurs, that is, when the airflow into the casing is larger and the static pressure difference occurs between both sides, the inside of the casing The air blown to the vent is naturally discharged to the outside to maintain approximately the same static pressure, and it is possible to discharge through the oversupply air discharge pipe 132 .

As shown in FIG. 3, a damper 114 is provided at the outlet of the outdoor air inlet blower pipe 113 to be rotatable by the supplied air pressure, and when the outdoor air inlet blower fan 111 stops working, the outdoor air inlet blower pipe ( 113) By closing the flow path, the flame inside the main combustion chamber 104 is guided to the outside through the outdoor air inlet blower pipe 113, thereby preventing a safety accident from occurring.

As described above, the air oversupplied through the outdoor air inlet blower pipe 113 is discharged to the outside through the oversupplied air outlet pipe 132. Due to the double pipe structure, turbulence occurs in the outside air inlet blower pipe 113, which causes rapid There may be situations where it is difficult to get out.

In the present invention, in order to prevent the occurrence of such a problem, as shown in FIG. 4 , an air flow plate 115 is further provided inside the outdoor air inlet blower pipe 113 .

The air flow plate 115 has a structure in which a first hole 116 is provided in the central region so that the oversupply air discharge pipe 132 is inserted, and a plurality of second holes 117 are provided around the first hole 116. As a result, the oversupplied air is smoothly introduced into the oversupplied air discharge pipe 132 through the first hole 116 and then is quickly discharged, and the outside air supplied through the outside air inlet blowing fan 111 is the second hole. Through (117), it is possible to smoothly supply into the main combustion chamber.

Hereinafter, a process in which the operator adjusts the static pressure on both sides in the same/similar manner through the balance adjusting unit 130 in the hot air heater according to the embodiment of the present invention will be described.

As shown in FIG. 5 , when it is confirmed that the air is introduced into the main combustion chamber 104 without being discharged to the outside through the oversupply air discharge pipe 132 in a state in which the operator opens the opening degree control plate 131 for a certain period or more , the operator determines that the air supply amount is insufficient and rotates the opening degree control plate 131 to increase the opening degree.

On the other hand, as shown in FIG. 6 , when it is confirmed that air is discharged in an excessive amount over a certain amount through the oversupply air discharge pipe 132 in a state in which the operator opens the opening degree control plate 131 for a certain period or more, the operator operates the air It is judged that the supply amount exceeds the appropriate level and is too excessive, and the opening degree control plate 131 is rotated to decrease the opening degree.

In the embodiment of the present invention, it is most ideal that the wood is burned in a state in which air is not discharged through the oversupply air discharge pipe 132, but in reality, it is not easy to satisfy these conditions, so the operator must perform the oversupply air discharge pipe 132 ) through which an appropriate amount of air is discharged as the most ideal combustion condition, and based on this, the static pressure of the supplied air and the static pressure of the forced intake and exhausted air can be adjusted equally/similarly by manually adjusting the opening degree control plate 131 based on this. have.

As described above, the description has been made based on the case in which the oversupply air discharge pipe is formed in an L-shape, but other shapes may be applied as shown in FIG. 7 .

Specifically, as shown in FIG. 7 , the balance control unit 130a communicates with an opening degree control plate 131a capable of adjusting the opening degree of the outdoor air inlet of the outdoor air inlet blowing fan 111, and one end of the outdoor air inlet blowing pipe 113 communicates with the inner space. and the other end is formed in communication with the outside and may include an oversupply air discharge pipe (132b) capable of discharging the oversupplied air into the casing to the outside.

Here, the oversupplied air discharge pipe 132b is formed in a substantially straight pipe shape, not an L-shape, and can discharge the oversupplied air as described above, and in the drawing, the oversupplied air discharge pipe 132b is in a vertical state. Alternatively, the lower end may be inclined so that the lower end is relatively adjacent to the casing than the upper end, and in this case, it is possible to discharge the excess air more smoothly and quickly.

Hereinafter, various modified examples of the first embodiment of the present invention will be described. Hereinafter, for the convenience of explanation and illustration, the description and illustration will be made based on the case where the oversupply air discharge pipe is applied in an L-shape, but various implementations below Of course, the oversupply air discharge pipe may be applied in the form of a straight pipe even in the examples.

Hereinafter, a warm air blower according to a second embodiment of the present invention will be described. A repeated description of the same configuration as that of the first embodiment will be omitted, and reference numerals starting with 200 are used for the same configuration.

In the above-described first embodiment, if the rotation/fixation of the opening degree control plate was manually operated by an operator, in the second embodiment, a structure in which rotation/fixation is automatically adopted is adopted.

Specifically, as shown in FIG. 8 , in the second embodiment of the present invention, the balance control unit 230 detects the degree of discharge of the air discharged through the oversupply air discharge pipe 232 and automatically adjusts the opening degree control plate 231 . It further includes an automatic driving unit 234 for opening the control plate driven by the .

The automatic opening control plate driving unit 234 includes a stepping motor 235 that rotates the opening control plate 231 in a step form, and an air exhaust detection sensor that detects the degree of air (air volume, wind pressure) discharged from the oversupply air exhaust pipe 232 ( 236), and a control unit 237 that receives the detection value of the air exhaust detection sensor 236 and controls the rotation of the stepping motor 235.

As described above, information on the optimum air discharge range is pre-stored in a memory (not shown) in a state in which a situation in which more than a certain amount of appropriate air is discharged from the oversupply air discharge pipe 232 to the outside is set as the optimum condition for combustion.

In the related drawings, the air exhaust detection sensor 236 is provided on the inner wall of the oversupply air discharge pipe 232, but is not limited thereto, and a separate '+' shaped bracket (not shown) in the central area of the outlet of the oversupplied air discharge pipe 232 C), it can also be installed in the center of the bracket. This air exhaust detection sensor 236 is applicable as a wind volume or wind pressure sensor.

The stepping motor 235 rotates the opening degree control plate 231 while rotating stepwise to sequentially control the opening degree of the intake port of the outdoor air inflow blowing fan 211, and the control unit 237 controls the detection value (air volume) of the air exhaust detection sensor 236. ) is continuously transmitted and the amount of air discharged through the oversupply air discharge pipe 232 is compared with the optimal discharge range stored in the memory.

When it is confirmed that the detected value of the air exhaust detection sensor 236 falls within the optimum emission range stored in the memory, the control unit 237 determines the optimum combustion condition, that is, the optimum outdoor air inflow fan 211 opening condition, and determines the opening degree control panel ( 231), the driving of the stepping motor 235 is stopped.

On the other hand, if it is confirmed that the detected value of the air exhaust detection sensor 236 is smaller than the optimal emission range stored in the memory, the control unit 237 determines that the supply amount of the outdoor air supplied through the outdoor air inlet blower pipe 213 is insufficient and determines that the stepping motor (235) is rotated to one side to increase the degree of opening of the outdoor air inlet blowing fan (211).

In addition, when it is confirmed that the detected value of the air exhaust detection sensor 236 is greater than the optimal emission range stored in the memory, the control unit 237 determines that the supply amount of the outdoor air supplied through the outdoor air inlet blower pipe 213 is excessive than necessary, and stepping By rotating the motor 235 to the other side, the degree of opening of the outdoor air inlet blowing fan 211 is reduced.

As described above, in the second embodiment of the present invention, the amount of air discharged through the oversupply air discharge pipe 232 is automatically detected through the air exhaust detection sensor 236, and the driving of the opening degree control plate 231 is automatically based on this. By adjusting to the optimum combustion conditions, that is, the static pressure of blowing into the combustion chamber space and the static pressure of forced intake and discharge to the outside of the combustion chamber can be adjusted substantially the same/similarly.

Hereinafter, a warm air blower according to a third embodiment of the present invention will be described, and repeated descriptions of the same components as those of the first embodiment will be omitted, and reference numerals starting with 300 are used for the same components.

In the above-described first embodiment, if the rotation/fixation of the opening degree control plate was manually operated by an operator, the third embodiment adopts a structure in which rotation/fixation is automatically performed similarly to the second embodiment.

Specifically, as shown in FIG. 9, in the third embodiment of the present invention, the automatic opening control plate driving unit 334 includes a stepping motor 335 for rotating the opening control plate 331 in a step form, and an oversupply air discharge pipe 332. A hinge rotation part 341 provided so as to be hinge-rotatable on the inner surface of the auxiliary discharge pipe 340 connected in communication with the outlet of the, and the hinge rotation part 341 when the hinge rotation part 341 rotates in one or the other direction. A plurality of limit switches 342 provided in the tube 340, and a control unit 337 for controlling the rotation of the stepping motor 335 by receiving the sensing values of the limit switches 342.

Here, the hinge rotating part 341 may be formed in a rod or bar shape so as not to close the oversupply air discharge pipe 332 flow path, and the limit switch 342 is a pair of upper/lower rotations of the hinge rotating part 341 to detect the upper/lower rotation. is provided with

The stepping motor 335 rotates the opening degree control plate 331 while rotating stepwise to sequentially adjust the intake opening degree of the outdoor air inflow blowing fan 311, and the control unit 337 continuously determines whether the detection signal of the limit switch 342 is generated. is transmitted to

When it is sensed that the contact signal of the pair of limit switches 342 does not occur, the control unit 337 determines the optimum combustion condition, that is, the optimum outdoor air inflow blowing fan 311 opening condition, and fixes the opening control plate 331 . To stop the driving of the stepping motor 335 .

On the other hand, when it is confirmed that the detection signal of the limit switch 342 located on the lower side of the drawing is generated, the control unit 337 determines that the supply amount of the outdoor air supplied through the outdoor air inlet blow pipe 313 is insufficient, and the stepping motor 335 . Rotate to one side to increase the opening degree of the outdoor air inlet blowing fan 311.

In addition, when it is confirmed that the detection signal of the limit switch 342 located on the upper side of the drawing is generated, the control unit 337 determines that the amount of outdoor air supplied through the outdoor air inlet blower 313 is excessive than necessary, and determines that the stepping motor 335 ) is rotated to the other side to reduce the degree of opening of the outdoor air inlet blowing fan 311 .

Hereinafter, a warm air blower according to a fourth embodiment of the present invention will be described, and repeated descriptions of the same components as those of the first embodiment will be omitted, and reference numerals starting with 400 are used for the same components.

In the above-described first embodiment, the rotation/fixation of the opening degree control plate was manually operated by an operator, but the fourth embodiment also adopts a structure in which the operator manually operates the rotation/fixation plate.

Specifically, as shown in FIG. 10, in the fourth embodiment of the present invention, the balance adjusting unit 430 is connected to the outlet of the oversupply air outlet pipe 432 and is connected to the outlet auxiliary pipe 441 made of a transparent or translucent material. ), a hinge rotation part 442 provided to be hinge-rotatable on the inner surface of the auxiliary discharge pipe 441, and a scale 443 formed in the discharge auxiliary pipe 441 to check the degree of rotation of the hinge rotation unit 442. .

Here, the hinge rotating part 442 may be formed in a rod or bar shape so as not to close the flow path of the oversupply air discharge pipe 432, and when the hinge rotating part 442 rotates upward for a certain period or more in the drawing, the air supplied to the combustion chamber When it is determined that the supply amount is excessive, and the hinge rotating part 442 is rotated downward for a certain amount or more in the drawing, it can be determined that the supply amount of the air is partially insufficient.

The operator can sequentially adjust the inlet opening degree of the outdoor air inflow blowing fan 411 while rotating the opening degree control plate 431, and then check the rotational position of the hinge rotating part 442 that can be visually confirmed from the outside at that time. , to determine whether there is a shortage.

For example, if it is confirmed that the hinge rotating part 442 is located in the region between the scales 443 on both sides, the operator determines the optimum combustion condition, that is, the optimum outdoor air inflow fan 411 opening condition, and opens the opening control plate 431. Fix it.

On the other hand, if it is confirmed that it is outside the area between the scales 443 on both sides of the hinge rotation part 442, the operator rotates the opening degree control plate 431 as described above to increase or decrease the opening degree of the inlet of the outdoor air inlet blowing fan 411. Combustion conditions can be adjusted.

Although the present invention has been described with reference to the accompanying drawings and the above-described preferred embodiments, the present invention is not limited thereto, but is defined by the following claims. Accordingly, those of ordinary skill in the art can variously change and modify the present invention within the scope without departing from the spirit of the claims to be described later.

100: casing 110: outside air inlet blower
111: outdoor air inlet blowing fan 113: outdoor air inlet blowing pipe
115: air flow plate 120: suction pressure providing blower
130,230,430: balance control unit 131: opening degree control panel
132: oversupply air exhaust pipe 234,334: automatic driving unit for opening degree control panel
235,335: stepping motor 236: air exhaust detection sensor
237,337: control unit 340,441: discharge auxiliary pipe
341,442: hinge rotation part 342: limit switch
443: scale

Claims (8)

a casing 100 provided with a combustion unit 101 on one side of the inside and a heat exchange unit 102 provided on the other side of the interior to receive the heated air heated from the combustion unit and exchange heat with the air to be exchanged;
An outdoor air inlet blow pipe 113 connected to the casing adjacent to the combustion unit 101 to introduce external air into the space provided with the combustion unit, and communicate with the outdoor air inlet blowing fan 111 and the outdoor air inlet blowing fan to form a flow path ) including an outdoor air inlet blower 110;
a suction pressure providing blower 120 connected to the casing adjacent to the heat exchange unit to provide a predetermined suction pressure to the heated air and to discharge the heated air heat-exchanged with the heat exchanged air to the outside; and
A balance control unit capable of adjusting the balance between the amount of outside air inflow per unit time to the combustion unit by the outside air inflow blower 110 and the amount of heated air discharged per unit time by the suction pressure providing blower 120; includes;
The balance control unit,
an opening degree control plate (131,231) capable of adjusting the degree of opening of the outside air inlet of the outside air inlet blowing fan (111); And the outdoor air inlet blower pipe 113 is provided in the form of an outdoor air inlet blower pipe and a double pipe, one side is in communication with the inside of the casing and the other side is in the form of an L-shaped tube that communicates with the outside, so that the air oversupplied into the casing can be discharged to the outside. Including; over-supply air discharge pipe (132, 232);
An air flow plate in which a first hole 116 is provided in a central region so that the oversupply air exhaust pipe is inserted inside the outdoor air inlet blow pipe 113 and a plurality of second holes 117 are provided around the first hole ( 115) is further provided. delete delete delete According to claim 1,
The balance control unit further comprises an automatic opening control plate driving unit (234, 334) for automatically driving the opening control panel by detecting the degree of discharge of the air discharged through the oversupply air discharge pipe (232). 6. The method of claim 5,
The opening degree control plate automatic driving unit 234,
a stepping motor 235 for rotating the opening degree control plate in a step form;
an air exhaust detection sensor 236 for detecting the degree of air discharged from the oversupplied air exhaust pipe; and
and a control unit (237) for receiving the detection value of the air exhaust detection sensor and controlling the rotation of the stepping motor. 6. The method of claim 5,
The automatic driving unit 334 of the opening degree control plate,
a stepping motor 335 for rotating the opening degree control plate in a step form;
a hinge rotation part 341 provided so as to be hinged on the inner surface of the auxiliary discharge pipe 340 connected in communication with the outlet of the oversupply air discharge pipe;
a plurality of limit switches 342 provided in the auxiliary discharge pipe so as to be in contact with the hinge rotating part when the hinge rotating part rotates in one or the other direction; and
and a control unit (337) receiving the detection value of the limit switch and controlling the rotation of the stepping motor. According to claim 1,
The balance adjustment unit 430,
an auxiliary discharge pipe 441 connected to the outlet of the oversupply air discharge pipe and made of a transparent or translucent material;
a hinge rotation part 442 provided on the inner surface of the auxiliary discharge pipe to be hinged rotatably; and
and a scale (443) formed on the auxiliary discharge pipe to check the degree of rotation of the hinge rotating part.

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