KR102394171B1 - Heat recovering ventilation apparatus having sterilization means - Google Patents

Abstract

The present invention relates to a device housing in which an air inlet and an exhaust inlet are formed on one side of both sides and an exhaust outlet and an air outlet are formed on the other side, respectively, an air supply passage from the air supply inlet to the air supply outlet, and an exhaust passage from the exhaust inlet to the exhaust outlet A total heat exchange element installed at the intersection of It relates to a heat recovery ventilation device having a sterilization function including a sterilization member installed on the front side of an air supply passage.
According to the present invention, it is possible to efficiently sterilize harmful bacteria in the outside air flowing into the room during heat exchange operation through the sterilization member installed in the air supply passage, and when the external environment is severe, sterilize by circulating only the indoor air to make the room more clean. It has the effect of keeping it hygienic and comfortable.

Description

Heat recovery ventilation apparatus having sterilization means

The present invention relates to a heat recovery ventilation device, and more particularly, to a heat recovery ventilation device having a sterilization function that can make the indoor environment more hygienic and comfortable by sterilizing harmful bacteria in the air supplied to the room as well as heat recovery ventilation.

In general, a ventilation device is a device installed in a building to comfortably ventilate air in a closed room by discharging indoor polluted air to the outside and introducing fresh outdoor air into the room.

In the past, these ventilation devices simply exhaust indoor air through a blower and introduce outdoor air into the room. There was a problem.

That is, in summer, the cooled indoor air is discharged to the outdoors and the hot air from the outdoors flows into the room as it is. As the indoor temperature rises, the cooling efficiency is lowered and energy consumption is inevitably increased. As the indoor air is discharged to the outdoors and cold air from the outside flows into the room as it is, the heating efficiency is lowered according to the drop in the indoor temperature, and thus energy consumption has no choice but to increase.

According to this simple ventilation problem, recently, a heat recovery ventilator capable of maintaining the indoor temperature and minimizing heat loss in the ventilation process through heat exchange between indoor air exhausted to the outside and outdoor air supplied to the room has been developed. It is mainly used.

7 schematically illustrates a typical configuration of such a heat recovery ventilator, and as illustrated, a supply flow path (S.F) through which outdoor air flows into the room in the housing 1 and a supply flow path (S.F.) through which indoor air flows to the outside An E.F Exhaust flow path is formed, and a total heat exchange element 2 is provided at the intersection of the air supply flow path S.F and the exhaust flow path E.F. The air supply flow path S.F and the exhaust flow path E.F. ) has a configuration in which the supply air blower 3 and the exhaust blower 4 are installed, respectively.

With this configuration, the outdoor air (O.A, Out Air) introduced into the supply air passage (S.F) and the indoor air (R.A, Return Air) introduced into the exhaust passage (E.F) exchange heat with each other while passing through the total heat exchange element (2). The heat exchanged outdoor air is supplied to the room (S.A, Supply Air), and the heat exchanged indoor air is exhausted to the outside (E.A, Exhaust Air). Efficient ventilation is possible while minimizing heat loss through heat exchange.

However, such a conventional heat recovery ventilation device has a problem in that, during ventilation operation, outdoor air only heats up and flows into the room while it contains foreign substances or harmful bacteria, so that the interior may be contaminated by foreign substances or harmful bacteria. In particular, such indoor pollution can cause serious problems in the case of serious air pollution or epidemics such as recent ones.

Registered Patent No. 10-1560192: Heat recovery ventilation device capable of bypass operation

The present invention is proposed in order to solve the above problems of the prior art, and an object of the present invention is to prevent indoor contamination by sterilizing various harmful bacteria contained in the air introduced into the room, and when the external environment is serious, the indoor It is to provide a heat recovery ventilation device having a sterilization function that can keep the room more hygienic and comfortable by enabling circulation operation to sterilize harmful bacteria by circulating only air.

As a problem solving means of the present invention for achieving the above object,

A device housing having an air supply inlet and an exhaust inlet formed on one side of both sides and an exhaust outlet and an air supply outlet formed on the other side, respectively, the intersection point of the air supply passage from the air inlet to the air supply outlet and the exhaust passage from the exhaust inlet to the exhaust outlet The total heat exchange element installed in A sterilization member installed on the front end, a filter member installed between the sterilization member and the total heat exchange element, an opening/closing damper installed outside each of the air supply inlet and the exhaust outlet, and the air supply inlet and the exhaust inlet. , a circulation damper that selectively creates a circulation path as it is opened and closed is closed, the circulation damper is opened, and the exhaust blower is stopped, and includes a mode control unit for controlling only the supply air blower to operate, wherein the sterilization member includes a rectangular frame having an inner space and an aluminum provided in the inner space of the frame. A plurality of substrates made of a material and coated with a photocatalyst on the surface, an upper bracket and a lower bracket coupled to the upper and lower ends of the frame, and the upper and lower ends are respectively coupled to the upper and lower brackets and arranged at regular intervals and a plurality of UV LEDs mounted on each of the plurality of substrates and irradiating ultraviolet rays with a wavelength of 380 to 400 nm with a photocatalyst coated on a mesh network, wherein the upper and lower brackets have a mutually up-and-down symmetric structure. A fixed end of a 'C' shape that is fitted and fixed to the upper end and lower end of the frame, an extension end extending horizontally for a certain length from one end of the fixed end, and vertically bent at the extension end, for fastening of the substrate Disclosed is a heat recovery ventilation device having a sterilization function including a substrate support end having a plurality of screw holes arranged at regular intervals.

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According to the heat recovery ventilation device having a sterilization function according to the present invention,

Through the sterilization member installed in the air supply path, harmful bacteria in the outside air flowing into the room can be sterilized efficiently during heat exchange operation. there is an effect

In particular, since the mesh network coated with the photocatalyst and the UV LED irradiating UV light are arranged in close proximity to each other, the sterilization effect against harmful bacteria can be increased through a photochemical reaction, and the space utilization inside the device housing can be improved. there is.

In addition, since it can be implemented simply without changing the structure of the device in use, it can be applied not only to newly manufactured devices but also to devices currently in use, thereby minimizing the economic burden due to installation.

In addition, it is added that, in addition to the effects specifically specified as described above, the specific effects that can be easily derived and expected from the characteristic configuration of the present invention can also be included in the effects of the present invention.

1 is a diagram illustrating the configuration of a heat recovery ventilation device having a sterilization function according to a first embodiment of the present invention;
2 is a view illustrating a three-dimensional configuration of a sterilizing member according to the present invention,
3 is a view illustrating one side of the sterilization member according to the present invention,
Figure 4 is a view illustrating an AA section of Figure 3,
5 is a diagram illustrating the configuration of a heat recovery ventilation device having a sterilization function according to a second embodiment of the present invention;
6 is a view illustrating an indoor circulation operation of a heat recovery ventilation device having a sterilization function according to a second embodiment of the present invention;
7 is a view illustrating the configuration and air flow of a conventional conventional heat recovery ventilator.

Hereinafter, a preferred embodiment of a heat recovery ventilation device having a sterilization function according to the present invention will be described in detail with reference to the accompanying drawings.

This embodiment is provided to more clearly explain the present invention to those with average knowledge in the art. It may be reduced or exaggerated for emphasis, and it is not limited to the matters illustrated in the drawings unless specifically limited.

In addition, in the description of the embodiment, if it is described that a certain component is “provided”, “formed”, “installed”, “coupled”, “fixed”, or “connected” to another component, , may be provided, formed, installed, coupled, fixed, or connected directly to the other components, but it will be understood that other components may exist in the middle.

In addition, terms indicating directions such as front, back, left, right, top, bottom, etc. are only used to describe the directions shown and observed in the drawings, and if the directions shown and observed are changed, these terms may also vary. It should be understood that there is

In addition, when it is determined that the technical features of the present invention may be unnecessarily obscured as it is already obvious to a person skilled in the art, such as a known function or a known configuration related in principle in explaining the embodiment, the detailed A description will be omitted.

1 to 4 exemplify a heat recovery ventilation device (hereinafter, abbreviated as “ventilator”) having a sterilization function according to a first embodiment of the present invention.

As illustrated in FIG. 1 , the ventilation device according to the first embodiment of the present invention includes a device housing 10 , a total heat exchange element 20 , an air supply blower 30 and an exhaust blower 40 , and a sterilization member (50) and the filter member (60) may be configured to include.

An air inlet 11 and an air outlet 12 and an exhaust inlet 13 and an exhaust outlet 14 may be respectively formed in the device housing 10 .

Inside the device housing 10, there is an air supply flow path S.F that guides outdoor air O.A from the supply air inlet 11 to the air supply outlet 12 and leads from the exhaust inlet 13 to the exhaust outlet 14. Exhaust passages E.F for guiding the indoor air R.A may be formed, respectively.

The air supply inlet 11 and the exhaust inlet 13 are respectively formed to face each other on one side (illustrated as the lower side in FIG. 1) of both sides of the device housing 10, and the exhaust outlet 14 and the air outlet 12 ) are respectively formed to face each other on the other side (illustrated as the upper side in FIG. 1) of the same both sides, and accordingly, the supply air passage S.F and the exhaust passage E.F may have a structure that intersects each other.

And inside the device housing 10 so that the supply air passage (S.F) and the exhaust passage (E.F) are partitioned from each other based on the total heat exchange element 20 to be described later, the air supply passage (S.F) and the exhaust passage (E.F) are partitioned. A partition wall 15 may be formed.

In addition, the support wall 16 may be formed on the front end side communicating with the air supply inlet 11 in the air supply passage S.F. The support wall 16 can support the sterilization member 50 and the filter member 60, which will be described later, when they are inserted therein.

In addition, although not shown in the drawing, in the device housing 10 at a position corresponding to the front end of the air supply flow path (S.F), the sterilization member 50 and the filter member 60 are installed inside or withdrawn to the outside to be replaced. A member entrance may be formed so as to be able to, and an entrance cover for opening and closing the member entrance may be detachably coupled to the member entrance.

The total heat exchange element 20 is installed at the intersection of the supply air passage S.F and the exhaust passage E.F, and is guided through the outdoor air O.A and the exhaust passage E.F, which are guided through the air supply passage S.F. The indoor air (R.A) exchanges heat with each other.

The total heat exchange element 20 is made of functional corrugated cardboard so that heat exchange occurs without mixing with each other when outdoor air (O.A) on the supply air passage (S.F) and indoor air (R.A) on the exhaust passage (E.F) pass through four sides. It may be configured in the shape of a rectangular box stacked to be crossed at right angles, which is only an example, and is not limited thereto, and total heat exchange elements of various conventionally known structures may be used.

The air supply blower 30 is installed inside the air supply outlet 12, and the exhaust blower 40 is installed inside the exhaust outlet 14. In more detail, the air supply blower 30 communicates with the air supply outlet 12. It is installed on the rear end of the air supply flow path (S.F) to be used, the exhaust blower 40 may be installed on the rear end side of the exhaust flow path (E.F) communicating with the exhaust outlet (14).

Here, the front and rear ends of each flow path (S.F, E.F) are defined according to the flow direction of the air with respect to the total heat exchange element 20, that is, the portion where air flows into the total heat exchange element 20 is the front end, The outflow part may be defined as the rear end.

The supply air blower 30 and the exhaust blower 40 are blowers for forcibly introducing and sending outdoor air (O.A) and indoor air (R.A) into the supply air passage (S.F) and the exhaust passage (E.F), respectively. As a blower, each blower motor and a blower fan that forcibly blows air while being rotated by the blower motor.

The sterilization member 50 is installed on the front end of the air supply passage (S.F), and can perform a function of sterilizing harmful bacteria contained in the air supplied to the room.

The filter member 60 may be installed adjacent to the sterilization member 50 to perform a function of filtering various foreign substances contained in the air supplied to the room.

The sterilization member 50 and the filter member 60 may be installed so that both ends are supported by the support wall 16 by being inserted through the member entrance of the device housing 10 .

2 to 4, a bar sterilizing member 50 is exemplified, the sterilizing member 50 is a frame 51, a mesh network 52, an upper bracket 53 and a lower bracket 54, A plurality of substrates 55 and a plurality of UV LEDs 56 may be included.

The frame 51 may be formed of a rectangular frame having an empty space therein.

The mesh network 52 is provided to be fixed to the inner empty space of the frame 51 and may be formed as a honeycomb-shaped mesh capable of filtering out foreign substances while allowing air circulation.

The mesh network 52 may be made of an aluminum material, and the surface may be coated with a photocatalyst in which a photochemical reaction occurs when receiving ultraviolet rays.

A titanium dioxide (TiO2) photocatalyst may be used as the photocatalyst to be coated on the mesh network 52 .

The upper bracket 53 and the lower bracket 54 are respectively coupled to the upper end and the lower end of the frame 51, and a plurality of substrates ( 55) can be supported.

The upper bracket 53 and the lower bracket 54 may have the same configuration and may be formed in a vertically symmetrical structure with each other.

That is, the upper bracket 53 and the lower bracket 54 are fitted to the upper and lower ends of the frame 51 and fixed ends 53a and 54a in the shape of a 'C', respectively, and the fixed ends 53a and 54a. Extension ends (53b, 54b) horizontally extending a certain length from one end of the, and a plurality of screw holes (53d, 54d) bent vertically at the extension ends (53b, 54b) for fastening the substrate (55) It may include substrate support ends (53c, 54c) arranged at regular intervals.

The plurality of substrates 55 may have upper and lower ends coupled to and supported by the upper bracket 53 and the lower bracket 54 , respectively.

That is, the upper and lower ends of the plurality of substrates 55 may be screwed to each other and coupled to the substrate support ends 53c and 54c of the upper bracket 53 and the lower bracket 54, and thus the extended ends 53b , 54b) may be arranged at regular intervals from left to right in a state spaced apart from the mesh network 52 provided in the frame 51 by the length of the frame 51 .

Each of the plurality of substrates 55 may be mounted with a plurality of UV LEDs (UV LEDs, 56) irradiating ultraviolet rays when power is applied.

The UV LED 56 may emit ultraviolet rays having a wavelength of 380 to 400 nm.

These 380-400 nm wavelength ultraviolet rays do not cause genetic modification or modification of biological functions and are harmless to the human body, and can most actively cause the photochemical reaction of the TiO2 photocatalyst coated on the mesh network 52 .

In the sterilization member 50 of the above configuration, the sterilization of harmful bacteria is achieved through a photochemical reaction by ultraviolet rays and a photocatalyst.

That is, when UV light is irradiated from the UV LED 56 to the TiO2 photocatalyst coated on the mesh network 52, photoelectrons are promoted from the filled valence band of TiO2 to the empty conduction band and absorb photons. ) electrons (e-) with electricity and holes (h+) with positive (+) electricity are formed.

And the hole (h+) generated by light in the valence band creates a hydroxide (OH Radical) that has a strong oxidizing action. It provides an effective sterilization effect that decomposes and removes harmful bacteria.

According to the ventilation device of the first embodiment having the above configuration, the sterilization member 50 is provided together with the filter member 60 on the front end side of the supply air passage S.F through which the outside air flows, so that the outdoor air flowing in from the outside is provided. In addition to the purification of various foreign substances contained in the sterilization member 50, various harmful bacteria are also sterilized through the photochemical reaction to supply air into the room, so that a more sanitary and comfortable indoor environment can be created.

5 to 6 exemplify a ventilator according to a second embodiment of the present invention, the ventilator according to the second embodiment has the same configuration as that of the first embodiment described above, but not only for heat exchange operation There is a difference configured so that indoor circulation operation is selectively possible.

Therefore, in the following description of the second embodiment of the present invention, the same reference numerals are used for the same components as those of the above-described first embodiment, and overlapping descriptions will be omitted, and only the different components will be mainly described. .

As illustrated in FIG. 5 , the ventilation device according to the second embodiment may further include opening/closing dampers 70a and 70b, a circulation damper 80 and a mode control unit while having the same configuration as that of the first embodiment. can

The opening/closing dampers 70a and 70b are installed outside each of the air inlet 11 and the exhaust outlet 14 to open and close the air inlet 11 and the exhaust outlet 14 .

That is, the opening/closing dampers 70a and 70b may be installed on an outdoor side through which external air flows into the device housing 10 and internal air flows out from the device housing 10 .

As the opening/closing dampers 70a and 70b, an electric damper that opens and closes while the blade is rotated according to the application of power may be used, and a known electric damper of various configurations may be applied without being limited to a special structure.

These opening/closing dampers 70a and 70b are controlled to open so that both supply and exhaust can be made through the supply air passage S.F and the exhaust passage E.F, as illustrated in FIG. 5, during the heat recovery ventilation operation, on the other hand, indoor During the circulation operation, as illustrated in FIG. 6 , the external air O.A is not introduced and only the circulation of the indoor air R.A can be controlled so that all of it is closed.

The circulation damper 80 may perform a function of selectively creating a circulation flow path between the air supply inlet 11 and the exhaust inlet 13 according to an opening/closing operation.

This circulation damper 80 is installed on the partition wall 15 that partitions between the supply inlet 11 and the exhaust inlet 13 as illustrated in FIG. As the damper, there is no need to be limited to a special structure, and a known electric damper of various configurations may be applied.

As illustrated in FIG. 5 , the circulation damper 80 divides between the supply inlet 11 and the exhaust inlet 13 during the heat recovery ventilation operation, so that the supply air passage S.F and the exhaust passage S.F are closed so that they can be formed. On the other hand, as illustrated in FIG. 6 , during the indoor circulation operation, it may be controlled to open so that a circulation passage can be created between the air supply inlet 11 and the exhaust inlet 13 .

The mode control unit controls the operation of each of the opening/closing dampers 70a and 70b, the supply air blower 30, the exhaust blower 40, and the circulation damper 80 according to the operation mode, that is, according to the heat recovery ventilation operation and the indoor circulation operation. function can be performed.

That is, the mode control unit first controls the opening/closing dampers 70a and 70b to be opened, and the circulation damper 80 to be closed, during the normal heat recovery ventilation operation, and the supply air blower 30 and the exhaust blower 40. can perform controls to work together.

According to this control, outdoor air (OA) is guided along the supply air path (S.F) by the supply air blower (30), passes through the total heat exchange element (50), exchanges heat with the indoor air (R.A), and then the air supply outlet (12) can be supplied to the room through the

At this time, of course, various harmful bacteria are sterilized by the sterilization member 50 and the filter member 60 and the air is supplied in a state in which foreign substances are purified.

At the same time, the indoor air R.A is guided along the exhaust flow path E.F by the exhaust blower 40, passes through the total heat exchange element 50, exchanges heat with the outdoor air O.A. By exhausting from the furnace, a heat recovery ventilation operation in which ventilation is performed while minimizing heat loss is performed.

On the other hand, the mode control unit controls the open/close dampers 70a and 70b to be closed during indoor circulation operation, controls the closed circulation damper 80 to be opened, and the exhaust blower 40 stops while the supply air blower ( 30) can be controlled to operate.

According to this control, as illustrated in FIG. 6 , since the air inlet 11 is closed and only the air blower 30 is operated, the inflow of the outdoor air O.A is blocked while only the indoor air R.A closes the exhaust inlet 13 . The indoor air (R.A) introduced in this way is directed toward the front end of the supply air passage (S.F) along the newly created circulation passage through the opening of the circulation damper (80), and the sterilization member (50) and the filter member (60) ), harmful bacteria are sterilized and foreign substances are purified.

Then, the sterilized and purified indoor air R.A passes through the total heat exchange element 20 and then circulates while being exhausted back into the room through the air supply outlet 12 .

According to the ventilation device of the second embodiment having the above configuration, hygienic heat recovery ventilation operation is possible through the sterilization of harmful bacteria and purification of foreign substances, and ventilation of the indoor air is required as in the first embodiment. However, when there is no need for heat exchange ventilation or in an environment with severe external pollution, it is possible to create a more sanitary and comfortable indoor environment by circulating only indoor air to sterilize harmful bacteria and purify foreign substances.

On the other hand, although not illustrated in the drawings, a user input unit having a button or switch for inputting an operation mode so that the user can select and input the heat recovery ventilation operation and the indoor circulation operation according to the outdoor temperature, air pollution state, etc. Of course it can be included.

In addition, a temperature sensor and an air pollution measurement sensor are provided on the outdoor side of the device housing 10 so that the operation mode can be automatically switched in addition to the user's manual selection, and the outdoor temperature detected by the mode control unit or the detected outdoor temperature It may be configured to control so that the heat recovery ventilation operation and indoor circulation are automatically performed according to the degree of pollution.

As described above in the embodiments of the present invention, according to the above-described ventilation device of the present invention, it is possible to efficiently sterilize harmful bacteria in the outside air flowing into the room during heat exchange operation through the sterilization member installed in the air supply passage, It can be seen that, when the external environment is severe, only the indoor air can be circulated and sterilized to keep the room more sanitary and pleasant.

The preferred embodiments of the present invention have been described in detail above, but the technical scope of the present invention is not limited to the contents described in the above-described embodiments and drawings, and may be modified or modified by those of ordinary skill in the art. Modified equivalent configuration will be said to not depart from the scope of the technical spirit of the present invention.

The reference numerals for the main parts of the accompanying drawings are as follows.
10: device housing 11: air supply inlet
12: air inlet 13: exhaust inlet
14: exhaust outlet 20: total heat exchange element
30: supply air blower 40: exhaust blower
50: sterilization member 55: substrate
56: UV LED 60: filter member
70a/b: open/close damper 80: circulation damper
SF: Air supply flow path EF: Exhaust flow path

Claims (5)

a device housing 10 having an air supply inlet 11 and an exhaust inlet 13 formed on one side of both sides and an exhaust outlet 14 and an air supply outlet 12 formed on the other side, respectively;
Total heat exchange element 20 installed at the intersection of the air supply flow path SF from the air inlet 11 to the air supply outlet 12 and the exhaust flow path EF from the exhaust inlet 13 to the exhaust outlet 14 )Wow;
The supply air blower 30 and the exhaust blower 40 respectively installed on the rear end side of the supply air passage SF communicating with the air supply outlet 12 and on the rear end side of the exhaust passage EF communicating with the exhaust outlet 14 and ;
A sterilizing member 50 installed on the front side of the air supply passage SF communicating with the air supply inlet 11; And,
a filter member 60 installed between the sterilization member 50 and the total heat exchange element 20;
an opening/closing damper (70a, 70b) installed outside each of the air inlet (11) and the exhaust outlet (14);
a circulation damper (80) installed between the air inlet (11) and the exhaust inlet (13) and selectively creating a circulation flow path as it opens and closes;
During the heat recovery ventilation operation, both the opening/closing dampers 70a and 70b are opened, the circulation damper 80 is closed, and the supply air blower 30 and the exhaust blower 40 are controlled to operate together, but during indoor circulation operation, the opening/closing damper ( 70a, 70b) are all closed, the circulation damper 80 is opened, and the exhaust blower 40 is stopped while the mode control unit for controlling only the supply air blower 30 to operate;
The sterilization member 50,
A rectangular frame 51 having an inner space, a mesh network 52 provided in the inner space of the frame 51 and made of an aluminum material and coated with a photocatalyst on the surface, is coupled to the upper and lower ends of the frame 51 an upper bracket 53 and a lower bracket 54, the upper and lower ends are respectively coupled to the upper bracket 53 and the lower bracket 54, and a plurality of substrates 55 are arranged at regular intervals, and the plurality of It is mounted on each of the substrates 55 and includes a plurality of UV LEDs (UV LEDs, 56) irradiating ultraviolet rays with a wavelength of 380 to 400 nm with a photocatalyst coated on the mesh network 52,
The upper bracket 53 and the lower bracket 54 are made of a mutually up-and-down symmetrical structure, and fixed ends 53a and 54a in the form of 'C' that are fitted and fixed to the upper and lower ends of the frame 51, Extension ends 53b and 54b horizontally extending for a predetermined length from one end of the fixed ends 53a and 54a, and vertically bent at the extension ends 53b and 54b, for fastening the substrate 55 A heat recovery ventilator having a sterilization function including the substrate support ends (53c, 54c) in which the screw holes (53d, 54d) are arranged at regular intervals. delete delete delete delete

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