KR20210151666A - Heat exchanger with sterilization function and ventilation method using the same - Google Patents

Abstract

The present invention provides a total heat exchanger capable of performing both of sterilization and ventilation, wherein the sterilization is for pathogens floating in a ward and the ventilation is performed through external air supply, and a ventilation method using the same. The present invention provides a total heat exchanger, which has a heat exchanger body divided into a first area in which an exhaust fan is installed, a second area in which an air supply fan is installed, a third area in which outside air is introduced, and a fourth area in which internal air is introduced, based on a heat transfer element. The total heat exchanger comprises: a first damper that opens and closes between the first area and the second area; a second damper opening and closing between the second region and the fourth region; a third damper installed in the third area to block and open the introduction of the outside air; and an ozone generator installed in the fourth area and sterilizing the heat transfer element according to the flow of introduced internal air by generating ozone.

Description

Total heat exchanger with sterilization function and ventilation method using the same {Heat exchanger with sterilization function and ventilation method using the same}

The present invention relates to a total heat exchanger and a ventilation method using the same, and more particularly, to a total heat exchanger having a function of sterilizing mold or virus attached to a filter in the total heat exchanger and a ventilation method using the same.

In general, indoor air in an enclosed space, such as a building's interior, becomes turbid by carbon dioxide emitted by a person's respiration over time. Therefore, when many people stay in a narrow space such as a hospital room, it is necessary to frequently ventilate the indoor polluted air with the outdoor fresh air. For this purpose, a ventilation device is usually installed in a building.

Such a ventilation device employs a method of forcibly discharging indoor air to the outside using a blower. However, in the case of forcibly exhausting indoor air using only a blower, there is a problem in that the natural inflow of fresh air from the outside is difficult, resulting in a lack of oxygen in the room. There is a problem that leads to an increase in heating and cooling costs.

In addition, there is a case where the people inside the room feel uncomfortable due to the sudden temperature change in the room due to the sudden inflow of outside air into the room. In particular, when only indoor air is discharged to the outside while the window or door frame is closed, the inflow of fresh air from the outside may be blocked, and it is difficult to control the humidity of the indoor air, so it is difficult to maintain a comfortable indoor environment.

Meanwhile, due to these problems, conventionally, a heat transfer device for supplying indoor air after heat-exchanging outdoor air and indoor air has been disclosed.

1 is a schematic diagram showing the structure of a conventional heat transfer device. As shown in FIG. 1, the conventional heat transfer device includes a supply air duct 10 through which outdoor air is guided to the room inside a box-shaped case 1, and this supply air The exhaust duct 20 that intersects the duct 10 at a predetermined position and guides indoor air to the outdoors, and the outdoor air supplied at the intersection of the supply air duct 10 and the exhaust duct 20 and the indoor air exhausted It is made by providing a heat transfer element (5) that exchanges heat with each other.

Here, the air supply duct 10 and the exhaust duct 20 are configured not to interfere with each other by the partition wall 3 dividing the inside of the case 1 up and down. In addition, an air inlet 11 communicating with the outdoors is formed at one end of the air supply duct 10 , and an air outlet 13 communicating with the indoor air supply outlet 13 is formed at the other end of the air supply duct 10 , and one end of the exhaust duct 20 . An exhaust inlet 21 communicating with the indoors is formed in the , and an exhaust outlet 23 communicating with the outdoors is formed at the other end of the exhaust duct 20 .

In addition, an air supply fan 15 for forcibly sucking in outdoor air is provided on the air supply outlet 13 side of the air supply duct 10, and an air purification filter 30 that filters various contaminants in the supplied outdoor air at the air supply inlet 11 side. ) is provided, and an exhaust fan 25 for forcibly discharging indoor air is provided on the exhaust outlet 23 side of the exhaust duct 20 .

On the other hand, the heat transfer element 5 has a hexahedral box shape in which the upper and lower corners are supported by the case 1 and the left and right corners are supported by the partition walls 3, and a plurality of air supply passages communicating with the air supply duct 10 therein. (5a) and the boundary portion between the air supply passage (5a) and the exhaust passage (5b) is provided with a heat exchange membrane excellent in heat conduction efficiency. Here, a portion indicated by a solid line in FIG. 1 indicates an exhaust flow, and a portion indicated by a dotted line indicates an air supply flow.

In the conventional total heat exchanger having such a configuration, when the indoor air is polluted, the exhaust fan 25 is operated so that the indoor air flows into the exhaust duct 20 through the exhaust inlet 21, and the heat transfer element 5 ) passes through the exhaust passage 5b and flows into the room through the exhaust outlet 23 .

At this time, the indoor air and outdoor air passing through the heat transfer element 5 exchange heat with the heat exchange membrane. That is, the heat exchange generated by the heat transfer element 5 is a sensible heat exchange between the supplied outdoor air and the exhausted indoor air, and latent heat generated by the condensate generated when the high-temperature air in the indoor air or the outdoor air is below the dew point temperature. exchange takes place together.

In such a heat transfer device, outdoor air supplied when the room is cooling or heating is primarily heat-exchanged with the indoor air and then introduced into the room, thereby preventing a sudden rise or fall of the indoor temperature.

On the other hand, in the conventional heat transfer device, a pre-filter is installed in the heat transfer element because odors and harmful viruses are easily contaminated by foreign substances contained in the bet and outside air during heat exchange.

However, if foreign substances are continuously accumulated in the pre-filter, not only the suction performance for betting and outside air during ventilation is reduced, but also secondary pollution occurs because mold and viruses are attached to and multiply on foreign substances, so that the indoor air is not fresh. Since the polluted air is provided, there is a problem in that the heating element must be periodically cleaned or, in severe cases, the heating element must be replaced.

On the other hand, in special facilities such as medical facilities, in addition to the intrinsic function of the heat transfer device described above, sterilization treatment for pathogens floating in the room may be required. In particular, at a time when the spread of infectious diseases such as new respiratory diseases is emerging as a serious social problem, the need for an electric heating device with a sterilization function for floating pathogens in the room is further increasing.

-Prior Document 1: Republic of Korea Patent Publication No. 2003-0063843 (published date: July 31, 2003)

-Prior Document 2: Republic of Korea Patent Publication No. 2005-0010581 (published date: January 28, 2005)

The present invention was devised to solve the above problems, and a total heat exchanger having a sterilization function for supplying sanitary and clean air to a room by sterilizing mold and viruses attached to a plurality of filters installed inside the total heat exchanger and using the same The purpose is to provide a ventilation method.

According to one embodiment of the present invention for achieving the above object, based on the heat transfer element, a first area in which an exhaust fan is installed, a second area in which an air supply fan is installed, a third area in which outside air is introduced, and a bet air is introduced A total heat exchanger including a heat exchanger body partitioned into a fourth area, comprising: a first damper for opening and closing the first area and the second area; a second damper that opens and closes between the second region and the fourth region; a third damper installed in the third area to block and open the introduction of the outside air; and an ozone generator installed in the fourth area and sterilizing the heat transfer element according to the flow of the bet introduced by generating ozone.

A filter member may be mounted on at least one of a side surface of the heat transfer element to which external air or bet is introduced and an open portion of the second region and the fourth region.

It may be made to further include an auxiliary ozone generator that is installed in the third area and sterilizes the heating element according to the flow of external air introduced by generating ozone.

The heat exchanger body may further include a photocatalyst cartridge detachably installed in a vertical direction in a passage between the indoor air inlet and the indoor exhaust to perform a sterilization function on the air introduced through the indoor air inlet.

The photocatalyst cartridge includes a body frame having at least one horizontal reinforcing bar and a vertical reinforcing bar formed therein, a honeycomb frame mounted inside the body frame and formed by dividing a plurality of individual receiving spaces, and in the receiving space of the honeycomb frame. The photocatalyst balls each accommodated therein, and the front and rear protective nets respectively mounted on the front and rear sides of the body frame to prevent the photocatalyst balls from being separated from the honeycomb frame may be included.

In addition, the present invention is a ventilation method using a total heat exchanger having the above-described sterilization function. When the outdoor air is introduced into the room, the first damper and the second damper are each closed, and the third damper is the outdoor air. is in an open state to be introduced, the exhaust fan and the supply fan are operated so that the outside air is introduced into the second area from the third area, and the bet air is introduced from the third area into the first area, When the air is cleaned for the bet, the first damper and the third damper form a closed state, the second damper forms an open state, the exhaust fan is stopped and the air supply fan is operated so that the fourth The outdoor air introduced into the area has an air flow that is circulated back into the room through the second area, and a filter member is installed in the middle of the air flow to remove the pollutants included in the bet.

When sterilizing the heat transfer element and the filter member installed inside the heat exchanger body, the first to third dampers form an open state, and the outside air and the bet introduced by operating only the exhaust fan are It has an air flow exhausted to the outside through region 1, and the air flow includes ozone generated through the ozone generator to sterilize the heat transfer element and the filter member.

The on/off control of the ozone generator may be performed by detecting and comparing the temperature and humidity of the indoor and outdoor air.

In the case of sterilization, at least twice the size of outdoor air is introduced into the volume of the room, and the introduced outdoor air is circulated through the heating element at least 6 times to purify the air, and when the 3 cycles are completed, for at least 5 minutes It may be to sterilize the filter by generating ozone in the front of the filter.

According to the present invention, by installing at least one ozone generator inside the heat exchanger body, it is possible to sterilize mold or virus generated in the filter member or heat transfer element due to dew condensation during heat exchange, and the By preventing harmful viruses or fungi from entering the air, there is an effect of securing an air conditioning performance suitable for places requiring high hygiene, such as indoors of medical facilities.

1 is a schematic diagram showing the structure of a conventional heat transfer device;
2 is a schematic diagram showing the installation state of the total heat exchanger having a sterilization function according to the first embodiment of the present invention;
3 is a block diagram of a total heat exchanger having a sterilization function according to a first embodiment of the present invention;
4 is a state diagram of the heat exchange operation of the total heat exchanger having a sterilization function according to the first embodiment of the present invention;
5 is an operation state diagram when the total heat exchanger having a sterilization function according to the first embodiment of the present invention is operated in an indoor air cleaning mode;
6 is a state diagram showing a sterilization mode for the filter members of the total heat exchanger having a sterilization function according to the first embodiment of the present invention;
7 is a perspective view showing the internal configuration of a heat exchanger of a total heat exchanger having a sterilization function according to a second embodiment of the present invention;
8 is a state diagram showing an installation state of a photocatalyst cartridge of a total heat exchanger having a sterilization function according to a second embodiment of the present invention;
9 is a partial enlarged view showing an insertion structure of a photocatalyst cartridge of a total heat exchanger having a sterilization function according to a second embodiment of the present invention;
10 is a partial enlarged view showing the configuration of a photocatalyst cartridge of a total heat exchanger having a sterilization function according to a second embodiment of the present invention; and
11 is a partially enlarged view showing an installation state of a photocatalyst ball of a photocatalyst cartridge.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to conventional or dictionary meanings, and the inventor should properly understand the concept of the term in order to best describe his invention. Based on the principle that can be defined, it should be interpreted as meaning and concept consistent with the technical idea of the present invention. In addition, unless otherwise defined in technical terms and scientific terms used, those of ordinary skill in the art to which this invention pertains have the meanings commonly understood. In the following description and accompanying drawings, descriptions of well-known functions and configurations that may unnecessarily obscure the gist of the present invention will be omitted. The accompanying drawings are provided as examples in order to sufficiently convey the spirit of the present invention to those skilled in the art. Accordingly, the present invention is not limited to the drawings presented below and may be embodied in other forms. Also, like reference numerals refer to like elements throughout. It should be noted that the same components in the drawings are denoted by the same reference numerals wherever possible.

<First embodiment>

Referring to FIG. 2 , the total heat exchanger of the present invention includes a heat exchanger body 70 having an exhaust port 71 and an air supply port 72 on one side so as to be exposed to the outer wall of the building, and the other side of the heat exchanger body 70 . It is composed of an air supply line 51 and an exhaust line 52 that are connected to each other and communicate with the interior of the building (in the case of a hospital, a hospital room).

Specifically, the heat exchanger body 70 has an exhaust fan M1 to suck indoor polluted air through an exhaust line 52 and exhaust it to the outside, and an exhaust fan M1 to suck outside air through an air inlet 72 and supply air line 51 ) to provide an air supply fan (M2) for supplying it to the room. In addition, a heat transfer element 60 for exchanging heat between the outdoor air sucked from the outside and the indoor air exhausted from the room is provided inside the heat exchanger body 70 .

In addition, the air supply line 51 and the exhaust line 52 connected to the heat exchanger body 70 are respectively connected to the respective rooms (eg, hospital rooms) through the air supply pipe 51a and the exhaust pipe 52a. In addition, each air supply pipe (51a) and exhaust pipe (51b) is equipped with a diffuser (air volume control means) can adjust the air supply or exhaust amount.

In addition, in the total heat exchanger of the present invention, by adjusting the rotation speed of the exhaust fan (M1) and the air supply fan (M2) of the heat exchanger body (70), each hospital room (wards 1 to 3) can be set as a negative pressure room. At this time, the sound pressure can be set in the hospital room by adjusting the opening degree of the diffuser (air volume control means) in each room.

That is, the sound pressure setting for each room can be set collectively by making the rotation speed of the exhaust fan M1 larger than the rotation speed of the air supply fan M2, or individually by adjusting the diffuser of each hospital room.

Referring to FIG. 3 , a heat transfer element 60 arranged in a rhombus shape is installed in the center of the inside of the heat exchanger body 70 . In addition, a vertical partition wall 76 and a horizontal partition wall 75 are respectively connected to the corners of the heat transfer element 60 . In addition, an exhaust port 71 and an air supply port 72 are installed on one side of the heat exchanger body 70 , and an air supply connection pipe 73 and an exhaust connection pipe 74 are formed on the other side of the heat exchanger body 70 . Here, the air supply connection pipe 73 is connected to the air supply line 51 in FIG. 2 , and the exhaust connection pipe 74 is connected to the exhaust line 52 .

On the other hand, the heat transfer element 60 crosses the outside cold and the inside heat through a plurality of tubes in the shape of a polymerization straw made of paper material so that heat exchange is made. In addition, filter members 61 and 62 are respectively disposed on the air intake surface of the heat transfer element 60 . In this case, the filter members 61 and 62 may be provided in a configuration in which a pre-filter and a medium filter are sequentially stacked. Here, the pre-filter is a filter located at the outermost part of the filter members 61 and 62, and a HEPA/deodorization filter is employed to protect the filter and increase the lifespan, and through this, the filter members 61 and 62 It serves to prevent performance degradation even when used for a long time. In addition, the medium filter is a filter having a high-performance collection efficiency.

On the other hand, during operation, cold and warm heat exchange with each other inside the heat exchanger body 70 , and condensation occurs due to a temperature difference, which causes a problem of mold or virus propagation in the heat transfer element 60 .

To this end, in the present invention, a plurality of sensors S1 and S2 for detecting temperature and humidity are installed inside the heat exchanger body 70 . Here, the first sensor (S1) is installed around the air supply port (72), the second sensor (S2) is installed around the exhaust connection pipe (74). That is, the first sensor S1 detects the temperature and humidity of the outside air introduced through the air supply port 72 , and the second sensor S2 is the temperature of the indoor air (inside air) introduced through the exhaust connection pipe 74 . And by detecting and comparing the humidity, it is possible to calculate the possibility of occurrence of dew condensation. The calculated information is transmitted to the control unit 100, and the control unit 100 performs on/off control of the ozone generator 90 based on this.

Here, the ozone generator 90 generates a large amount of ozone during operation to sterilize viruses or molds that have grown on the heat transfer element 60 and the filter members 61 and 62 mounted on the heat transfer element 60 .

For example, as shown in FIG. 3, the ozone generator 90 is installed in the middle of the flow path for exhausting the bet in the hospital room to the exhaust unit 71 through the exhaust connection pipe 74, and the ozone generated through the ozone generator 90 ( O ₃ ) may be introduced into the second filter member 62 according to the flow of air to sterilize the virus or mold remaining in the second filter member 62 . Similarly, when a large amount of ozone is continuously generated, the ozone can penetrate even to the inside of the heat transfer element 60 , so that viruses or mold bacteria remaining in the heat transfer element 60 can also be sterilized.

In this case, as shown in FIG. 3 , the ozone generator 90 may be installed only on the exhaust passage of the indoor air, thereby preventing the generated ozone from flowing into the room.

In addition, when the heat exchanger body 70 is not used for a long period of time, the ozone generator 90 may be periodically operated to sterilize the heat exchanger body 70 and the filter members 61 and 62 .

Referring to FIG. 4 , a first damper D1 , a second damper D2 , and a third damper D3 are installed in the heat exchanger body 70 , and an exhaust fan is provided on one side of the heat exchanger body 70 . (M1) is installed, the other side is provided with an air supply fan (M2).

Specifically, the first damper D1 is positioned above the heat transfer element 60 and is positioned to partition between the first area A1 and the second area A2 disposed on the left and right with respect to the heat transfer element 60 . is installed on In addition, a third area A3 and a fourth area A4 are formed on the left and right sides of the heat transfer element 60 . That is, first to fourth regions A1 to A4 are formed in the upper, lower, left, and right sides of the heat transfer element 60 in the center of the heat exchanger body 70 . In this case, the first and second areas A1 and A2 are partitioned vertically from the third and fourth areas A3 and A4 with respect to the horizontal partition wall 75 , respectively, and the first and third areas A1 and A3 are separated from the first The second and fourth areas A2 and A4 and the left and right sides are respectively partitioned based on the damper D1.

On the other hand, the third damper D3 is disposed on the side of the air supply port 72 formed on the left side of the heat exchanger body 70, so that the third damper D3 can be opened or closed to introduce outside air or block the introduction of outside air. Meanwhile, the second damper D2 is installed between the top and bottom of the second area A2 and the fourth area A4 inside the heat exchanger body 70 . Accordingly, by opening and closing the second damper D2, it is possible to circulate the indoor air. In addition, the third filter member 63 is mounted on the lower side of the second damper D2.

In the total heat exchanger of the present invention configured as described above, as shown in FIG. 4 , when the third damper D3 of the heat exchanger body 70 is opened and the air supply fan M2 is operated, outside air is introduced along the third area A3 and heat transfer Through the element 60, air is supplied into the room along the air supply fan M2 of the second area A2. In this state, the first damper D1 is maintained in a closed state.

On the other hand, when the exhaust fan M1 installed in the first area A1 is operated, the bet is introduced into the fourth area A4, and the bet introduced from the room according to the suction power of the exhaust fan M1 passes through the heat transfer element 60 to be exhausted to the first area A1. At this time, the second damper D2 is closed to prevent the bet from flowing into the second area A2.

As described above, in the state of FIG. 4 , indoor air is introduced by the exhaust fan M1 and outside air is introduced by the supply fan M2 so that heat exchange is performed in the heat transfer element 60 installed in the center of the heat exchanger body 70 . do. Accordingly, the outside air can be introduced into the room in a heat-exchanged state (heat exchange ventilation mode).

Referring to FIG. 5 , when the indoor air pollution level is increased, the first damper D1 and the third damper D3 are set to a closed state, and only the second damper D2 is set to an open state. When the air supply fan M2 is operated in this state, indoor air (better) is introduced into the fourth area A4 by the air supply fan M2, and the introduced air flows into the open second damper D2 side 2 has a flow that circulates back into the room through area A2. In this case, polluted air in the room may be filtered and circulated through the third filter member 63 disposed in front of the second damper D2 (air cleaning mode).

Referring to FIG. 6 , a sterilization operation may be performed on the filter members 61 , 62 , and 63 through the ozone generators 90a and 90b in the process of exhausting indoor air to the outside air.

Specifically, in this state, only the exhaust fan (M1) is operated and the supply fan (M2) is stopped. Also, all of the first to third dampers D1, D2, and D3 are in an open state, and the first ozone generator 90a and the second ozone generator 90b are in an operating state, respectively.

In this state, as for the flow of air, indoor air is introduced into the fourth area A4 by the suction force of the exhaust fan M1, and some of the introduced indoor air is introduced into the second area A2 through the second damper D2. ) and is exhausted to the first area A1 through the open first damper D1. The introduced remaining indoor air passes through the heat transfer element 60 and is exhausted to the outside through the first area A1.

Meanwhile, the outside air flows into the third area A3 through the open third damper D3, passes through the heat transfer element 60, and is diverted to the first area A1 by the exhaust fan M1 to be exhausted. As described above, in the state of FIG. 6 , the supply fan M2 is stopped and only the exhaust fan M1 is operated, so that indoor air is introduced through the fourth area A4 and outside air is introduced through the third area A3. It is diverted from the heat transfer element 60 and exhausted to the first area A1.

At this time, a large amount of ozone is generated through the first ozone generator 90a disposed in the third area A3 and passes through the first filter member 61 along the introduced external air flow to provide the first filter member 61 and heat transfer. It serves to sterilize viruses or fungi that have grown on the element 60 . In addition, a large amount of ozone is continuously generated even in the second ozone generator 90b installed in the fourth area A4 and passes through the second filter member 62 and the third filter member 63 along the flow of the introduced bet. , a sterilization treatment for these filter members 62 and 63 may also be performed (filter sterilization mode).

A case in which a total heat exchanger having such a configuration is applied to a medical facility will be described as an example. A sterilization function against pathogens is required for patient hygiene and quarantine in the hospital room.

Therefore, as a standard for ventilation in the ward, outside air (filtered fresh air) of at least twice the volume of the ward should be generally introduced. In addition, the supplied outdoor air should be circulated at an air volume equivalent to 6 times the volume of the ward.

Based on this reference, the ventilation method for 1 hour first introduces an amount of outdoor air corresponding to at least twice the volume of the hospital room, and circulates the introduced outdoor air through the heat exchanger body 70 at least 6 times to purify the air. At this time, when 3 cycles of 6 cycles are completed, ozone is generated in the front of the HEPA filter for at least 5 minutes to sterilize the filter. Here, it is necessary to operate the dampers so that the sterilized air does not flow into the room.

As such, when the sterilization process for 5 minutes is completed, the ozone generator 90 is turned off for at least 2 minutes and discharged to the outside air to remove the contaminants remaining in the filter member or to be sterilized. After that, the circulating air is circulated into the inside of the ward by operating the damper.

By repeatedly performing such an operation, it is possible to provide clean air in the hospital room and to sterilize the filter member installed in the heat exchanger body, thereby providing a more sanitary indoor environment.

<Second embodiment>

7 and 8 , the total heat exchanger according to the second embodiment of the present invention includes a heat transfer element 300 and a photocatalyst cartridge 210 inside the total heat exchanger body 100 .

Specifically, the total heat exchanger body 100 has an indoor air supply port 131 and an indoor exhaust port 132 formed on both sides thereof, and an outdoor air supply port 122 and an outdoor exhaust port 121 are formed on the other side surface.

The photocatalyst cartridge 210 is disposed on the passage of the indoor exhaust port 132 and the indoor air supply port 131 . In addition, a pre-filter 220 and a HEPA filter 230 are mounted on the front and rear sides of the photocatalyst cartridge 210 to filter fine dust or foreign substances, respectively.

On the other hand, a damper 151 is installed on the passage between the indoor exhaust port 132 and the indoor air supply port 131 to perform a function of filtering indoor air circulation through opening and closing of the damper 151 .

Meanwhile, a cover plate (not shown) having a transparent window is mounted on the upper side of the total heat exchanger 100 . A transparent window formed on the cover plate may be provided to visually confirm a state in which fine dust or foreign substances are adsorbed to the photocatalyst cartridge 210 when the total heat exchanger 100 is used for a long period of time.

In addition, a plurality of blowing fans 152 and 153 are provided inside the total heat exchanger 100 to introduce indoor and outdoor air.

In addition, referring to FIGS. 9 and 10 , cartridge slots 221 are formed in the vertical direction on both walls of the passage between the indoor exhaust port 132 and the indoor air supply port 131 , and on both sides of the cartridge slot 221 . A first filter slot 222 and a second filter slot 223 are respectively formed.

Accordingly, the photocatalyst cartridge 210 is vertically inserted into the cartridge slot 221 to be installed. In addition, the pre-filter 220 is inserted into the first filter slot 222 in the front of the photocatalyst cartridge 210, and the HEPA filter 230 in the second filter slot 223 in the rear of the photocatalyst cartridge 210. is inserted and installed.

As described above, in the present invention, the photocatalyst cartridge 210 and the filters 220 and 230 can be easily mounted on or removed from the slots 221 , 222 , 223 , thereby improving maintenance performance.

Referring further to FIG. 11 , on the other hand, the photocatalyst cartridge 210 has a configuration in which a grid frame 216 is mounted inside a rectangular body frame 210a. Specifically, the grid frame 216 is formed so as to support the front protection net 211 in a plane, horizontal reinforcing bars 216a and vertical reinforcing bars 216b are arranged to form a grid shape. That is, the grid frame 216 is provided to prevent deformation of the frame of the body frame 210a. In particular, when the photocatalyst cartridge 210 is vertically disposed to increase the bending load or the torsion load, it serves to reinforce it.

The photocatalyst cartridge 210 is provided with a honeycomb mold 213 formed by dividing a plurality of hexagonal accommodating spaces, and photocatalyst balls 215 are accommodated in the accommodating spaces of the honeycomb mold 214 , respectively. In addition, in the front and rear of the honeycomb mold 213, the front and rear with high puncture rate to minimize the loss of the irradiated light while preventing the external departure of the plurality of photocatalyst balls 215 accommodated in the honeycomb mold 213. The rear protection nets 211 and 212 are installed.

As described above, the honeycomb mold 213 applied to the present invention can efficiently accommodate the photocatalyst balls 215 in their accommodating spaces, thereby increasing the exposure rate of the photocatalyst balls 215 compared to the irradiation area of the LED bar 310 . can

In addition, a lattice frame 216 is installed inside the body frame 210a, and a plurality of mounting holes 216c and 216d are disposed to face each other at a predetermined interval in the lattice frame 216 . In addition, the LED bar 310 is installed in the mounting holes 216c and 216d in a state spaced apart from the photocatalyst ball 215 at regular intervals through the LED mounting element 320 .

Specifically, the LED mounting element 320 is formed with an upper fixing part 321 through which the end of the LED connection part 311 is fixed through the front end, and the lower fixing part 323 to support the back surface of the LED bar 310. is formed That is, the end of the LED bar 310 is fixed between the upper fixing part 321 and the lower fixing part 323 of the LED mounting element 320 . Meanwhile, an arrow-shaped insertion piece 324 is formed at the lower end of the LED mounting element 320 . The insertion piece 324 is contracted when inserted into the mounting hole 216d and returned to its original state after penetration to prevent easy separation. On the other hand, the upper side of the insertion piece 324 is provided with an insertion piece 324 in a shape bent downward.

Accordingly, in a state in which the insertion piece 324 of the LED mounting element 320 is mounted on the mounting hole 216d, the holding piece 322 is elastically supported around the mounting hole 216d, thereby causing the LED bar 310 to move vertically and horizontally. prevent flow. Therefore, it is possible to solve the problem that the LED bar 310 is damaged or malfunctions due to vibration or impact during operation.

In the above, the present invention has been illustrated and described with respect to specific embodiments, but the present invention is not limited to the above-described embodiments, and those of ordinary skill in the art to which the present invention pertains will The invention may be implemented with various changes without departing from the spirit of the invention.

51: supply line
52: exhaust line
51a: air supply pipe
51b: tuyere
52a: exhaust pipe
52b: intake port
60: heat element
61: first filter member
62: second filter member
63: third filter member
70: heat exchanger body
71: exhaust port
72: air inlet
73: air supply connector
74: exhaust connector
75: horizontal bulkhead
76: vertical bulkhead
90: ozone generator
90a: first ozone generator
90b: second ozone generator
100: total heat exchanger body
110: cover plate
111: transparent window
121: outdoor exhaust vent
122: outdoor air inlet
131: indoor air inlet
131a: air supply fan
132: indoor exhaust port
210: photocatalyst cartridge
213: honeycomb mold
215: photocatalyst ball
216: grid frame
216a: horizontal reinforcement bar
216b: vertical reinforcement bar
216c,2016d: Installer
220: pre-filter
221: cartridge slot
222: first filter slot
223: second filter slot
230: HEPA filter
300: heat element
310: LED bar
311: LED connection
320: LED mounting element
321: upper fixing part

Claims (8)

A total heat exchanger comprising a heat exchanger body divided into a first area in which an exhaust fan is installed based on a heat transfer element, a second area in which an air supply fan is installed, a third area in which outside air is introduced, and a fourth area in which bet air is introduced. ,
a first damper that opens and closes between the first area and the second area;
a second damper that opens and closes between the second region and the fourth region;
a third damper installed in the third area to block and open the introduction of the outside air; and
The total heat exchanger having a sterilization function, characterized in that it includes an ozone generator installed in the fourth area and sterilizing the heat transfer element according to the flow of the bet introduced by generating ozone. According to claim 1,
A total heat exchanger having a sterilization function, characterized in that a filter member is mounted on a side of the heat transfer element to which external air or bet is introduced, and at least one of an open portion of the second region and the fourth region. According to claim 1,
The total heat exchanger having a sterilization function, characterized in that it further comprises an auxiliary ozone generator installed in the third area and sterilizing the heat transfer element according to the flow of external air introduced by generating ozone. According to claim 1,
and a photocatalyst cartridge detachably installed in a vertical direction in the passage between the indoor air inlet and the indoor exhaust of the heat exchanger body to perform a sterilization function on the air introduced through the indoor air inlet. A total heat exchanger with a sterilization function. 5. The method of claim 4,
The photocatalyst cartridge,
At least one horizontal reinforcing bar and a body frame formed with a vertical reinforcing bar,
A honeycomb frame mounted on the inside of the body frame and formed by partitioning a plurality of individual accommodating spaces;
photocatalyst balls each accommodated in the receiving space of the honeycomb mold, and
The total heat exchanger having a sterilization function, characterized in that it is mounted on the front and rear of the main frame, respectively, comprising front and rear protective nets to prevent the photocatalyst balls from being separated from the honeycomb frame. As a ventilation method using a total heat exchanger having a sterilization function according to claim 1,
When the outdoor air is introduced into the room, the first damper and the second damper are in a closed state, respectively, and the third damper is in an open state to introduce outdoor air, and the exhaust fan and the supply fan are operated. The outdoor air is introduced into the second area from the third area, the bet is introduced into the first area from the fourth area,
When the air is cleaned for the bet, the first damper and the third damper form a closed state, the second damper forms an open state, the exhaust fan is stopped and the air supply fan is operated to operate the second damper. Ventilation method, characterized in that the bet introduced into area 4 has an air flow circulated back into the room through the second area, and a filter member is installed in the middle of the air flow to remove the pollutants included in the bet. 7. The method of claim 6,
When sterilizing the heat transfer element and the filter member installed inside the heat exchanger body,
The first to third dampers form an open state, and the outside air and the bet introduced by operating only the exhaust fan have an air flow that is exhausted to the outside through the first area,
The air flow includes ozone generated through the ozone generator to sterilize the heat transfer element and the filter member. 8. The method of claim 7,
In the case of sterilization,
At least twice the size of outdoor air is introduced into the volume of the room, and the introduced outdoor air is circulated through the heating element at least 6 times to clean the air. Ventilation method, characterized in that performing sterilization of the filter.

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