KR102282099B1 - Heat Recovering Ventilator With Bypass Chamber - Google Patents

Abstract

The present invention relates to a total heat exchanger for ventilating indoor air. More particularly, the present invention relates to a total heat exchanger having a bypass chamber, in which a heat exchange element is installed in the center of a body part of the total heat exchanger, and the four vertices of the heat exchange element are connected to an inner wall of the body part to form respective air flow spaces on the side surface of the heat exchange element, wherein a side space part of one side is formed of an outside air supply portion and an inside air discharge portion, each having a fan, and a separate bypass chamber with a step difference is placed in a side space part of the other side to communicate with each other, thereby minimizing the internal space of the body part and, at the same time, the minimized number of dampers for controlling the air flow are installed, thereby improving efficiency so that the total heat exchanger is operated in all the modes, such as general ventilation mode, air cleaning mode, bypass mode, and filter exhaustion mode.

Description

Heat Recovering Ventilator With Bypass Chamber

The present invention relates to a total heat exchanger for ventilating indoor air, and more particularly, a heat exchange element is installed in the center of the body of the total heat exchanger, and the four vertices of the heat exchange element are connected to the inner wall of the body, so that each The air flow space is formed, but both side spaces on one side are formed of an external air supply unit and an internal exhaust unit, each having a fan, and a separate bypass chamber having a step difference to communicate with each other is placed in both sides of the other side space to minimize the internal space of the body At the same time, it relates to a total heat exchanger equipped with a bypass chamber that aims to increase efficiency so that the general ventilation mode, air cleaning mode, bypass mode, and filter exhaustion mode can all be operated by installing a minimum number of dampers that control air flow. .

In general, the air of a closed activity space provided inside a building has a detrimental effect on the internal activity or health of the occupant as the content of carbon dioxide increases or becomes contaminated over time by the breathing or activity of the resident.

Therefore, when a large number of people stay in a narrow space such as an enclosed space such as an office, it is necessary to frequently replace the polluted air in the internal space with fresh outdoor air to ventilate it. At this time, it is a ventilation device that is normally installed and operated.

Most of the conventionally known ventilation devices employ a method of forcibly discharging only indoor air to the outside using a single blowing fan. However, when only indoor air is forcibly exhausted using a single blower fan, the indoor air is heated and heated because the indoor air is discharged to the outside without filtration and outdoor air flows in through the door or window gap without heat exchange. The cost of cooling has become unnecessarily high.

In addition, the sudden change in temperature of the indoor air due to sudden cold and heat inflow from the outside causes the people inside to feel uncomfortable, especially when only the indoor air is discharged to the outside with the window or door frame closed. In addition to blocking the inflow of fresh air from the outside, oxygen deficiency may occur, and humidity control of the indoor air is not performed at all, so that a comfortable indoor environment cannot be maintained even though a ventilation device is provided. .

In order to solve this conventional problem, a ventilation device of a total heat exchange method has been proposed in which, when the indoor air is discharged to the outdoors, heat is first exchanged with the discharged indoor air and then the outdoor air is supplied to the room

The total heat exchange type ventilation device as described above discharges indoor air to the outdoors and at the same time supplies outdoor air and discharges it into the room, so that the indoor air discharged to the outdoors and the outdoor air flowing into the room cross each other and cross In the process, they exchange heat with each other, and the temperature of the outdoor air introduced into the room is raised to bring it closer to the indoor air and supply air.

Accordingly, even when the room is ventilated by introducing the outdoor air into the room, the change in the room temperature is lowered, thereby minimizing an increase in the load required for cooling or heating.

When looking at the configuration of a general total heat exchange ventilation system, an air supply duct for guiding outdoor air into the room is provided inside a hollow body, and an exhaust duct that intersects the air supply duct at a predetermined position and guides indoor air to the outdoors. is provided A total heat exchanger for exchanging heat between outdoor air supplied to and exhausted indoor air is provided at a point where the air supply duct and the exhaust duct intersect. At this time, the air supply duct and the exhaust duct do not interfere with each other by the partition wall dividing the interior of the body up and down.

As related prior art, Korean Patent Registration No. 10-1272674 and Korean Patent Publication No. 10-2008-0024379 improve heat exchange efficiency by equalizing the flow of indoor and outdoor air.

However, the conventional total heat exchanger is typically installed on the ceiling and has a configuration in which ducts through which air flows to both sides are connected and installed, and a total heat exchange element is installed inside the body of the exchanger.

In this configuration, four spaces are formed on both sides of one side and both sides of the other side with the total heat exchange element as the center, and supply and exhaust fans and a plurality of dampers are installed in these spaces to control the air flow while controlling them. There is a problem in that the volume of the body of the exchanger increases and the number of dampers installed increases, resulting in a large installation space.

In addition, since the conventional total heat exchanger requires a large number of dampers to be installed, there is a problem in that the cost is high and economical efficiency is lowered.

In addition, when the conventional total heat exchanger operates a bypass mode in which air flows without using a filter exhaustion mode or an element, a separate air flow pipe or channel is often installed. In this case, the volume of the body part becomes larger. There is also the problem of reduced operational efficiency.

KR 10-1272674 (registration number) 2013.07.03. KR 10-2008-0024379 (Publication No.) 2008.03.18. KR 10-0532188 (registration number) 2005.11.23.

Accordingly, the present invention has been devised to solve the conventional problems as described above,

A heat exchange element is installed in the center of the body of the total heat exchanger, and the four vertices of the heat exchange element are connected to the inner wall surface of the body to form air flow spaces on the side surfaces of the heat exchange element. The purpose of this is to provide a compact total heat exchanger by minimizing the space inside the body by providing separate bypass chambers each having a fan and having a step difference to communicate with each other in the space on both sides of the other side.

Another object of the present invention is to reduce the total number of dampers by installing and operating a damper on the upper surface of the bypass chamber provided inside the body, and at the same time use a narrow space in the body to use the general ventilation mode and air cleaning mode in addition to the bypass mode and filter exhaustion mode. It is intended to increase the efficiency of ventilation by allowing all of them to be operated.

Another object of the present invention is to minimize the body (volume) of the total heat exchanger and to increase the efficiency of installation cost by installing a minimum number of dampers at the same time.

Another object of the present invention is to provide a bypass chamber by dividing the OA part into upper and lower spaces in a space formed by a partition support coupled to the vertex of a rectangular heat exchange element, but by opening the end of the divided space to freely flow air In addition, by forming a damper on the divided upper surface, the movement from the heat exchange element to the divided lower surface (or movement in the opposite direction) moves only through the damper, and the movement from the heat exchange element to the divided upper surface (or in the opposite direction) movement) is to provide a total heat exchanger that can directly move and change the air flow up and down differently.

Another object of the present invention is to provide a bypass chamber by dividing the RA part into upper and lower spaces in the space formed by the barrier rib support coupled to the vertex of the rectangular heat exchange element, but open one side of the divided space, and close one side, , by installing a damper on the upper surface at the same time and placing a movement preventing wall equipped with a damper between the divided upper surface and the heat exchange element to move only through the damper in the room, so that the inflow of indoor air moves only in the set direction, so that the size of the space is to reduce

Another object of the present invention is to improve the convenience of internal inspection of the total heat exchanger or filter replacement by installing a cassette-type opening and closing port on the ceiling.

The present invention for achieving the above object is a total heat exchanger, comprising: a heat exchange element 110 in which heat is transferred while outside air and inside air cross pass; an exchanger body 120 in which the heat exchange element 110 is installed; and a bulkhead support 130 for connecting and fixing the wall surface of the exchanger body 120 to each corner of the heat exchange element 110, and each inner corner of the exchanger body 120 has the heat exchange element 110. The first space portion 140 is partitioned by the side portion and the bulkhead support 130 of the , the exhaust fan 141 is provided to discharge the bet to the outside, and the air supply fan 151 is provided to supply the outside air to the room. A second space 150 to be used, a third space 160 through which outside air is introduced, and a fourth space 170 through which bet air is introduced are respectively formed and provided, and the heat exchange element 110 includes the exchanger body 120 . ) in the center of the first space 140 and the second space 150 , the heat exchange element 110 , which is disposed away from the first space 140 and the second space 150 . In the third space 160 and the fourth space 170 on the side surface, the air flow space is separated from the third space 160 and the fourth space 170 and the air flows by bypass. chamber 180; is included, and the bypass chamber 180 is formed so that the lower surfaces of the third space 160 and the fourth space 170 communicate with each other at a predetermined height at each bottom surface. At the same time, the main bypass chamber 181 communicates with the first space 140 and the communication port 181a to allow air to flow; and the main bypass chamber 181 provided in the fourth space 170 . The auxiliary bypass chamber 182 is formed so that the movement preventing wall 185 extends from the upper surface of the fourth space 170 to the upper end of the fourth space 170 and the air flow is separated from the fourth space 170, ; The heat exchange element 110 is installed from the bottom to the top of the exchanger body 120, and on the lower surface of the exchanger body 120, a cassette type switchgear 190 for opening and closing it is further installed on the indoor ceiling (T). With the open cassette type switchgear 190 , the heat exchange element 110 is opened to the indoor ceiling (T).

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of the present invention The main bypass chamber 181 has one side of the lower surface open, and the opposite side of the lower surface is closed to communicate with each other, and the first space portion 140 and the third space portion 160 only on the upper side of the main bypass chamber 181 , and a bulkhead support dividing the third space 160 and the fourth space 170 is disposed.

The barrier rib support 130 of the present invention includes a first support 131 dividing the first space 140 and the second space 150 , the second space 150 and the fourth space. A second support 132 dividing the space 170, a third support 133 dividing the third space 160 and the fourth space 170, and the first space 140 and a fourth supporter 134 that divides the third space 160, and the first supporter 131 and the second supporter 132 have a top surface from a bottom surface of the exchanger body 120. The installation height is the same, and the third support 133 and the fourth support 134 are provided from the upper surface of the main bypass chamber 181 to the upper surface of the exchanger body 120. The installation heights are the same, but the installation heights of the first supporter 131 and the second supporter 132 are higher than the installation heights of the third supporter 133 and the fourth supporter 134 .

In the auxiliary bypass chamber 182 of the present invention, the bet introduced from the room is moved to the main bypass chamber 181 at the lower side or the heat exchange element 110 at the side only through the damper.

According to the present invention, a first damper D1 communicating with the exhaust fan 141 to control the discharge of the bet is provided on one side of the first space 140 , and one of the second space 150 is provided. A vent 152 communicating with the air supply fan 151 is provided on the side portion to allow indoor air to enter and exit, and one side of the third space portion 160 is provided with a second second for controlling the entry and exit of external air OA. A damper D2 is provided, and a third damper D3 for controlling entry and exit of the main bypass chamber 181 and air is provided on a bottom surface of the third space 160 , and the fourth space part A fourth damper D4 for controlling the auxiliary bypass chamber 182 and air to enter and exit is provided at 170 , and on the bottom surface of the auxiliary bypass chamber 182 , the main bypass chamber 181 and the main bypass chamber 181 are provided. A fifth damper D5 for controlling the air flow is provided.

The present invention provides a general ventilation mode in which outdoor air (outdoor air, OA) is supplied to and ventilated indoors while expelling indoor air (bet, RA) to the outside, and indoor air is introduced into the bypass chamber 180 and then again Indoor air cleaning mode in which the indoor air is ventilated cleanly by re-supplying the room through the heat exchange element 110 , the indoor air is discharged through the bypass chamber 180 and only outdoor air is returned to the room through the heat exchange element 110 . In the bypass mode supplied, and indoor air is introduced into the reverse side of the heat exchange element 110 and discharged to the outside through the bypass chamber 180, foreign substances collected in the filter unit 111 of the air inlet are discharged to the outside. It is operated in any one of the filter exhaustion modes to be removed.

In the general ventilation mode of the present invention, the air supply fan 151 and the exhaust fan 141 are turned on, the first, second, and fourth dampers D1, D2, D4 are turned on, and the third and fifth dampers ( While D3 and D5 are turned OFF, external air OA flows into the third space 160 through the second damper D2 and passes through the filter unit 111 and the heat exchange element 110 . Then, while flowing in the second space 150 , it is supplied to the room through the air supply fan 151 and the ventilation hole 152 , and the indoor air RA is supplied to the room through the bypass ventilation hole 183 . After flowing into the pass chamber 182, it enters the fourth space 170 through the fourth damper D4, passes through the heat exchange element 110, and exchanges heat with the outside air, and then the first space portion ( 140) and the exhaust fan 141, and is discharged to the outside through the first damper D1.

In the indoor air cleaning mode of the present invention, the supply fan 151 is turned on, the exhaust fan 141 is turned off, the third damper D3 and the fifth damper D5 are turned on, and the While the first damper D1, the second damper D2, and the fourth damper D4 are turned off, the indoor air RA flows into the auxiliary bypass chamber 182 through the bypass vent 183. After being removed, it enters the main bypass chamber 181 through the fifth damper D5, flows into the third space 160 through the third damper D3, and passes through the filter unit 111. After passing through the heat exchange element 110 , it flows into the second space 150 and is re-supplied into the room through the air supply fan 151 and the ventilation hole 152 .

In the filter exhaustion mode of the present invention, the air supply fan 151 is OFF, the exhaust fan 141 is ON, the first and third dampers D1 and D3 are ON, and the second, fourth, and fifth dampers ( While D2, D4, and D5 are turned OFF, indoor air is introduced into the second space 150 through the vent 152 by the exhaust fan 141 and then the filter is passed through the heat exchange element 110 . While passing through the unit 111 in the reverse direction, the foreign substances collected therein are removed and introduced into the third space 160, and then into the main bypass chamber 181 through the third damper D3, and then into the communication port ( 181a), it is introduced into the first space 140 and is discharged to the outside through the exhaust fan 141 and the first damper D1.

In the bypass mode of the present invention, the air supply fan 151 and the exhaust fan 141 are turned on, the first, second, and fifth dampers D1, D2, and D5 are turned on, and the third and third dampers are turned on. While (D3 and D4) are turned OFF, the external air OA flows into the third space 160 through the second damper D2 and then passes through the filter unit 111 to the heat exchange element 110 . After passing through, it flows in the second space 150 and is supplied to the room through the air supply fan 151 and the vent 152, and the indoor air RA is supplied to the room through the bypass vent 183. After flowing into the auxiliary bypass chamber 182 , it enters the main bypass chamber 181 through the fifth damper D5 , and then into the first space 140 through the communication port 181a. As it flows in, it is discharged to the outside through the exhaust fan 141 and the first damper D1.

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The total heat exchanger having a bypass chamber according to the present invention installs a heat exchange element in the center of the body and connects the four vertices of the heat exchange element to the inner wall surface of the body to form each air flow space on the side surface of the heat exchange element, but one side The space on both sides is formed of an external air supply part and an internal exhaust part, each having a fan, and separate bypass chambers with a step difference are placed in the space on the other side to communicate with each other, minimizing the space inside the body and compact installation and operation. There is this.

In addition, the present invention reduces the total number of dampers by installing and operating a damper on the upper surface of the bypass chamber provided inside the body, and at the same time uses a narrow space of the body to operate both the bypass mode and the filter exhaustion mode in addition to the general ventilation mode and air cleaning mode. It can be operated so that the efficiency of ventilation can be achieved.

In addition, the present invention has the advantage of increasing the efficiency of the installation cost by minimizing the body (volume) of the total heat exchanger and at the same time installing a minimum number of dampers.

The present invention provides a bypass chamber by dividing the OA part into upper and lower spaces among the spaces formed by the bulkhead support coupled with the vertices of the rectangular heat exchange element, but by opening the ends of the divided spaces to free air flow, By forming a damper on the upper surface, the movement (or movement in the opposite direction) from the heat exchange element to the divided lower surface is moved only through the damper, and the movement from the heat exchange element to the divided upper surface (or movement in the opposite direction) is directly It has the advantage of being able to move up and down differently in the air flow.

The present invention provides a bypass chamber by dividing the RA part into upper and lower spaces among the spaces formed by the barrier rib support combined with the vertices of the rectangular heat exchange element, but with one side of the divided space open, one side closed, and the upper surface The size of the space can be reduced by installing a damper and placing a movement preventing wall with a damper between the divided upper surface and the heat exchange element at the same time to move only through the damper in the room, so that the indoor air moves only in the set direction. there is.

In addition, the present invention installs a cassette type opening and closing port on the ceiling, so that it is convenient to check the inside of the total heat exchanger or replace the filter.

1 is a schematic perspective view of a total heat exchanger having a bypass chamber according to the present invention;
2 is a schematic perspective view of a bypass chamber provided in a total heat exchanger having a bypass chamber according to the present invention;
3 is a plan view of a total heat exchanger having a bypass chamber according to the present invention;
4 is a front state view of a total heat exchanger having a bypass chamber according to the present invention;
5 is a rear state view of a total heat exchanger having a bypass chamber according to the present invention;
6 is a flow state diagram (general ventilation mode) of the air in which the room is ventilated through the total heat exchanger provided with the bypass chamber according to the present invention;
7 is a flow state diagram (air cleaning mode) of air entering the room again through the bypass chamber and the heat exchange element provided in the total heat exchanger having the bypass chamber according to the present invention;
8 is a flow state diagram (filter exhaustion mode) of air exiting to the reverse side of the filter through the heat exchange element and the bypass chamber provided in the total heat exchanger equipped with the bypass chamber according to the present invention;
9 is a flow state diagram (bypass mode) of the air discharged by the bet air bypassing the heat exchange element through the bypass chamber provided in the total heat exchanger provided with the bypass chamber according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described so that those of ordinary skill in the art can easily implement them with reference to the accompanying drawings.

The total heat exchanger 100 provided with a bypass chamber according to the present invention is as shown in FIGS. 1 to 9,

a heat exchange element 110 provided with a filter unit 111 at the air inlet port for heat transfer while the outside air and the inside air cross pass;

an exchanger body 120 in which the heat exchange element 110 is installed;

and a bulkhead support 130 for connecting and fixing the wall surface of the exchanger body 120 and each corner of the heat exchange element 110 ,

A first space portion in which an exhaust fan 141 is provided in each inner corner of the exchanger body 120 is partitioned by the side surface of the heat exchange element 110 and the bulkhead support 130 to discharge the bet to the outside. 140, a second space 150 provided with a supply fan 151 to supply outdoor air to the room, a third space 160 through which outside air is introduced, and a fourth space 170 through which bet air is introduced. ) is formed and provided,

The third space 160 and the fourth space 170 are connected to the air flow space so that the third space 160 and the fourth space 170 can flow separately from each other. The pass chamber 180; is further included.

The heat exchange element 110 of the present invention includes a third space 160 and a fourth space in which the bypass chamber 180 is provided instead of the center of the exchanger body 120 by the provision of the bypass chamber 180 . It is moved toward the first space 140 and the second space 150 rather than 170 .

In the total heat exchanger of the present invention configured as described above, when the exhaust fan 141 and the air supply fan 151 are operated by a controller (not shown), the external air OA is transferred to the third space 160 . is introduced into the air, passes through the filter unit 111 and the heat exchange element 110 in turn, and is supplied (SA) into the room through the second space unit 150 .

At the same time, indoor air (RA) is introduced into the fourth space (170), passes through the heat exchange element (110), and is heated, and is discharged (EA) to the outside through the first space (140) so that the indoor air is ventilated. do.

In addition, the partition support 130 of the present invention is installed so that the first space 140 and the second space 150 are divided, the first space 140 and the second space 150 a first support 131 that blocks the air of the

The second space portion 150 and the fourth space portion 170 are installed to be divided so as to block the air in the second space portion 150 and the fourth space portion 170 from flowing to each other. support 132,

The third space portion 160 and the fourth space portion 170 are installed to be divided so as to block the air in the third space portion 160 and the fourth space portion 170 from flowing with each other. support 133, and

A fourth space is installed so that the first space 140 and the third space 160 are divided to block the air in the first space 140 and the third space 160 from flowing with each other. It is composed of a support 134 .

In this way, in the total heat exchanger of the present invention, the air in the first space 140 and the second space 150 do not flow to each other by the first support 131 , but to the second support 132 . The air in the second space 150 and the fourth space 170 do not flow with each other by means of the third space part 160 and the fourth space part 170 by the third support 133. The air in the 170 , does not flow with each other, and the air in the first space 140 and the air in the third space 160 is blocked by the fourth support 134 so that the air does not flow with each other.

In addition, the bypass chamber 180 is an air flow space formed on the lower side and side portions of the third space 160 and the fourth space 170 so as to be separated from the spaces, respectively. The lower surfaces of the third space 160 and the fourth space 170 are formed to communicate with each other at a predetermined height on each floor surface, and at the same time communicate with the first space 140 and the communication port 181a to allow air The main bypass chamber 181 through which is flowed, and a movement preventing wall from the upper surface of the main bypass chamber 181 provided in the fourth space 170 to the upper end of the fourth space 170 ( The auxiliary bypass chamber 182 is formed so that the fourth space 170 and the air flow are separated while the 185) is extended.

In this way, the bypass chamber 180 is provided with a step difference in height from each other in the fourth space portion 170 .

In the auxiliary bypass chamber 182, the bet introduced from the room is moved to the lower main bypass chamber 181 or the side heat exchange element 110 only through the damper, thereby lowering the degree of freedom of air flow, so that air moves only by control. can be

Here, a bypass vent 183 is formed on the wall portion of the auxiliary bypass chamber 182 so that indoor air can flow in, and an indoor communication duct (not shown) can be easily inserted into the bypass vent 183 . A flange (183a) is further provided so that it can be.

In addition, the first support 131 and the second support 132 of the bulkhead support 130 are provided from the bottom surface to the top surface of the exchanger body 120, and their installation heights are the same, and the third support 133 and the fourth support 134 are provided from the upper surface of the main bypass chamber 181 to the upper surface of the exchanger body 120, and their installation heights are also the same.

However, the installation heights of the first support 131 and the second support 132 are higher than the installation heights of the third support 133 and the fourth support 134 .

Meanwhile, a first damper D1 communicating with the exhaust fan 141 to control the discharge of the bet is installed on one side of the first space 140 . In addition, an exhaust duct (not shown) for guiding the discharged bet and discharging to the outside is connected to the first damper D1.

Accordingly, when the first damper D1 is turned on and the exhaust fan 141 is operated, the air in the first space 140 is discharged to the outside.

A vent 152 communicating with the air supply fan 151 is provided on one side portion of the second space 150 to allow indoor air to enter and exit, and the vent 152 is communicated with the room to allow indoor air to flow. A communication pipe (not shown) is connected and installed. The vent 152 is further provided with a flange 152a to facilitate the connection of the indoor communication pipe.

Therefore, when the air supply fan 151 is operated, the air of the second space 150 can be supplied into the room through the ventilation hole 152 .

In the present invention, when the air supply fan 151 is stopped and only the exhaust fan 141 is operated, the indoor air can be reversely introduced into the second space 150 through the ventilation hole 152. . This is operated when operating the filter exhaustion mode, which will be described later.

In addition, a second damper D2 for controlling the entry and exit of the outside air OA is installed on one side of the third space 160 . An air supply duct (not shown) for guiding and flowing external air is connected to the second damper D2. Therefore, when the second damper D2 is turned on, external air may be introduced into the third space 160 .

In addition, on the bottom surface of the third space 160 , a third damper D3 for controlling the inflow and outflow of the main bypass chamber 181 and air is provided. When the third damper D3 is turned on, the air in the third space 160 can enter and exit the main bypass chamber 181 or vice versa.

A fourth damper D4 is provided in the fourth space 170 to control the auxiliary bypass chamber 182 and air to enter and exit. Accordingly, when the fourth damper D4 is turned on, the fourth space 170 and the auxiliary bypass chamber 182 are communicated to allow air to flow.

In addition, a fifth damper D5 for controlling air flow with the main bypass chamber 181 is provided on the bottom surface of the auxiliary bypass chamber 182 . Accordingly, when the fifth damper D5 is turned on, the auxiliary bypass chamber 182 and the main bypass chamber 181 communicate with each other and air may flow.

On the other hand, at the inlet of the heat exchange element 110 positioned in the third space 160 and introducing the external air OA, a filter comprising a first pre-filter 111a on the front part and a dust collecting filter 111b on the rear part. A portion 111 is provided.

Here, the dust collecting filter 111b) is prepared as a collective filter in which filters having various performances such as a HEPA filter and a medium filter having various functions are gathered.

Therefore, the external air can be supplied cleanly by filtering fine dust or foreign substances while flowing into the third space 160 and passing through the filter unit 111 .

In addition, a photocatalytic filter 112 may be further installed at the outlet of the heat exchange element 110 through which the external air filtered through the filter unit 111 exits to further disinfect the air supplied to the room.

In addition, dust contained in the indoor air can be protected by protecting the heat exchange element 110 at the inlet of the heat exchange element 110 that is located in the fourth space 170 and introduces indoor air (RA) to increase its durability. A second pre-filter 113 for pre-filtering and discharging foreign substances or the like may be further installed.

A cassette type switchgear 190 is installed on the lower surface of the total heat exchanger of the present invention and is installed on the indoor ceiling T and opens and closes the lower surface of the exchanger body 120 .

Accordingly, by opening the cassette-type switchgear 190, the filter, etc. provided in the exchanger body 120 can be quickly maintained and exchanged, thereby improving convenience.

With this configuration, when the second damper D2 is operated by a controller (not shown), the outdoor air OA passes through the first pre-filter 111a and the dust collecting filter 111b to remove dust and purify it. In this state, the heat exchange element 110 is supplied, and the outdoor air passing through the heat exchange element 110 is supplied (SA) into the room through the air supply fan 151 .

At the same time, the first damper D1 is operated by a control unit (not shown) to introduce indoor air RA into the heat exchange element 110 , and then the bet that has passed through the heat exchange element 110 is operated by the exhaust fan 141 . ), the general ventilation mode that is discharged to the outside (EA) is operated.

In addition, the present invention is more useful in operating a filter dusting mode for removing dust or foreign substances adhering to the first pre-filter 111a and the dust collecting filter 111b provided in the filter unit 111 .

In addition, the present invention is more efficient in the operation of the bypass mode for discharging indoor air to the outside through the bypass chamber.

In particular, the present invention provides the exchanger body 120 by installing the bypass chamber 180 in the air flow space formed inside the exchanger body 120 and installing a damper for controlling the flow of air between these spaces and the chamber. ), it has the advantage of reducing the installation cost by reducing the number of dampers installed, while at the same time making it possible to operate it compactly.

The total heat exchanger of the present invention as described above has a general ventilation mode that supplies and ventilates outdoor air (outside air, OA) to the room while sending out indoor air (better, RA), and a bypass chamber 180 for indoor air Indoor air cleaning mode in which the inflow is introduced and recirculated back into the room through the heat exchange element 110 to ventilate the room cleanly, and the indoor air is discharged through the bypass chamber 180 and only outdoor air is passed through the heat exchange element 110 to the indoor air. In the bypass mode supplied to the air conditioner, and the filter exhaust mode in which indoor air is introduced into the reverse side of the heat exchange element 110 and discharged to the outside through the bypass chamber 180, foreign substances collected in the filter unit are discharged to the outside and removed Any one of the modes can be operated.

Hereinafter, the flow chart of indoor and outdoor air for each mode will be described in detail as follows.

6 is a flow state diagram of the air in which the room is ventilated according to the general ventilation mode through the total heat exchanger of the present invention.

The general ventilation mode, as shown in FIG. 6, is a mode for exhausting indoor air to the outside and supplying outdoor air to the room to ventilate,

The air supply fan 151 and the exhaust fan 141 are turned on by a controller (not shown), the first, second, and fourth dampers D1, D2, and D4 are turned on, and the third and fifth dampers D3 are turned on. ,D5) is OFF,

External air OA flows into the third space 160 through the second damper D2, passes through the first pre-filter 111a and the dust collection filter 111b, and passes through the heat exchange element 110. After passing through, it flows in the second space 150 and is supplied into the room through the supply fan 151 and the ventilation hole 152 .

At the same time, the indoor air RA flows into the auxiliary bypass chamber 182 through the bypass vent 183 and then enters the fourth space 170 through the fourth damper D4. After exchanging heat with outside air while passing through the second pre-filter 113 and the heat exchange element 110 , it passes through the first space 140 and the exhaust fan 141 to the outside through the first damper D1 . As it is discharged into the air, the cycle of the general ventilation mode is made.

7 shows a flow state diagram (air cleaning mode) of the air entering the room again through the bypass chamber and the heat exchange element provided in the total heat exchanger of the present invention.

In the indoor air cleaning mode, when there is a lot of fine dust in the outside air and it is not suitable to supply it to the room, as shown in FIG. 7, indoor air is passed through the filter unit and the heat exchange element and contained in the bet. After removing the dust, it is supplied back into the room to ventilate the room cleanly.

By a control unit (not shown), the air supply fan 151 is turned on, the exhaust fan 141 is turned off, the third damper D3 and the fifth damper D5 are turned on, and the first damper ( D1), the second damper D2, and the fourth damper D4 are turned off,

After the indoor air (RA) flows into the auxiliary bypass chamber 182 through the bypass vent 183, it enters the main bypass chamber 181 through the fifth damper D5. It flows into the third space 160 through a third damper D3, passes through the first pre-filter 111a and the dust collecting filter 111b, and passes through the heat exchange element 110, and then passes through the second space. As it flows into the unit 150 and is re-supplied into the room through the air supply fan 151 and the vent 152, the cycle of the indoor air cleaning mode is performed.

8 shows a flow state diagram (filter exhaustion mode) of air in which foreign substances, etc. are removed from the filter unit while the bet is discharged to the reverse side of the filter unit through the heat exchange element and the bypass chamber provided in the total heat exchanger of the present invention.

The filter exhaustion mode, as shown in FIG. 8, is a mode to increase durability by removing dust or foreign substances adhering to the filter unit 111,

By a controller (not shown), the air supply fan 151 is turned off, the exhaust fan 141 is turned on, the first and third dampers D1 and D3 are turned on, and the second, fourth, and fifth dampers D2, D4, D5) is OFF,

After the indoor air is introduced into the second space 150 through the vent 152 by the exhaust fan 141, it passes through the filter unit 111 through the heat exchange element 110 in reverse. The collected foreign substances are removed and introduced into the third space 160 , then into the main bypass chamber 181 through the third damper D3 , and then into the first space through the communication port 181a . After being introduced to 140, the filter exhaust mode cycle is performed as it is discharged to the outside through the exhaust fan 141 and the first damper D1.

9 is a flow state diagram (bypass mode) of the air discharged by the bet air bypassing the heat exchange element through the bypass chamber provided in the total heat exchanger of the present invention is shown.

The bypass mode, as shown in FIG. 9, is a mode in which the indoor air is discharged directly to the outside through the bypass chamber without passing through the heat exchange element.

The air supply fan 151 and the exhaust fan 141 are turned on by a controller (not shown), the first, second, and fifth dampers D1, D2, D5 are turned on, and the third and fourth dampers D3 are turned on. ,D4) is OFF,

External air OA is introduced into the third space 160 through the second damper D2 by the air supply fan 151, and the first pre-filter 111a and the dust collecting filter 111b are removed. After passing through the heat exchange element 110 , it flows into the second space 150 , and is supplied into the room through the supply fan 151 and the ventilation hole 152 .

At the same time, the indoor air RA flows into the auxiliary bypass chamber 182 through the bypass vent 183 and then into the main bypass chamber 181 through the fifth damper D5. After entering, it flows into the first space 140 through the communication port 181a, and then is discharged to the outside through the exhaust fan 141 and the first damper D1, so that the bypass mode cycle is performed. do.

As described above, the total heat exchanger of the present invention operates any one of a general ventilation mode, an indoor air cleaning mode, a filter exhaustion mode, and a bypass mode, so that these four modes can be operated inside the body of the exchanger. The space was efficiently arranged and the number of dampers installed was also minimized.

As described above, in the total heat exchanger having a bypass chamber according to the present invention, a heat exchange element is installed in the central portion of the body of the total heat exchanger, and the four vertices of the heat exchange element are connected to the inner wall surface of the body to each air flow to the side surface of the heat exchange element. The space is formed, but both sides of the space are formed of an external air supply and an internal exhaust, each having a fan, and in the space of the other side, separate bypass chambers having a step to communicate with each other are placed, thereby minimizing the internal space of the body at the same time. Any one of general ventilation mode, air cleaning mode, bypass mode, and filter exhaustion mode can be operated by installing the minimum number of dampers that control air flow.

100: total heat exchanger with bypass chamber
110: heat exchange element
111: filter unit 111a: first pre-filter 111b: dust collection filter 112: photocatalytic filter
113: second pre-filter
120: exchanger body
130: bulkhead support
131: first support 132: second support 133: third support 134: fourth support
140: first space 141: exhaust fan
150: second space 151: air supply fan 152: ventilation port 152a: flange
160: third space 170: fourth space
180: bypass chamber 181: main bypass chamber 182: auxiliary bypass chamber
183: bypass vent 181a: communication port 183a: flange 185: movement barrier
190: cassette type opener
D1: 1st damper D2: 2nd damper D3: 3rd damper D4: 4th damper D5: 5th damper

Claims (12)

In the total heat exchanger,
a heat exchange element 110 that transfers heat while the outside air and the bet cross pass;
an exchanger body 120 in which the heat exchange element 110 is installed;
and a bulkhead support 130 for connecting and fixing the wall surface of the exchanger body 120 and each corner of the heat exchange element 110 ,
A first space portion in which an exhaust fan 141 is provided in each inner corner of the exchanger body 120 is partitioned by the side surface of the heat exchange element 110 and the bulkhead support 130 to discharge the bet to the outside. 140, a second space 150 provided with a supply fan 151 to supply outdoor air to the room, a third space 160 through which outside air is introduced, and a fourth space 170 through which bet air is introduced. ) is formed and provided,
The heat exchange element 110 is disposed to be shifted from the center of the exchanger body 120 into the first space 140 and the second space 150 , and the first space 140 and the second space 150 . ) in the third space 160 and the fourth space 170 on the side of the heat exchange element 110, the air flow space is formed in the third space 160 and the fourth space 170 ) is separated from each other and the bypass chamber 180 in which air flows; is included,
The bypass chamber 180 is formed so that the lower surfaces of the third space 160 and the fourth space 170 communicate with each other at a predetermined height from the bottom surfaces of the third space 160 and the fourth space 170 , and at the same time, the first space 140 . and a main bypass chamber 181 in communication with the communication port 181a through which air flows; and the fourth space in the upper surface of the main bypass chamber 181 provided in the fourth space 170 . It consists of an auxiliary bypass chamber 182 that separates the air flow from the fourth space 170 while the movement preventing wall 185 extends to the upper end of the 170;
The heat exchange element 110 is installed from the bottom to the top of the exchanger body 120, and on the lower surface of the exchanger body 120, a cassette type switchgear 190 for opening and closing it is further installed on the indoor ceiling (T). A total heat exchanger having a bypass chamber in which the heat exchange element 110 is opened to the indoor ceiling (T) with the opened cassette-type switchgear (190).
delete According to claim 1,
One side of the main bypass chamber 181 is open on the lower surface, and the opposite side of the lower surface is closed to communicate with each other,
The bulkhead support 130 dividing the first space 140 and the third space 160, and the third space 160 and the fourth space 170 only in the upper part of the main bypass chamber 181 is provided. Total heat exchanger equipped with a bypass chamber to be disposed.
According to claim 1,
The barrier rib support 130 includes a first support 131 dividing the first space 140 and the second space 150 , the second space 150 and the fourth space ( A second support 132 dividing 170), a third support 133 dividing the third space 160 and the fourth space 170, and the first space 140 and the second It is composed of a fourth support 134 that divides the three space 160,
The first support 131 and the second support 132 are provided from the bottom surface to the top surface of the exchanger body 120 so that their installation heights are the same, the third support 133 and the fourth support 134 is provided from the upper surface of the main bypass chamber 181 to the upper surface of the exchanger body 120 so that the installation height is the same,
A total heat exchanger having a bypass chamber in which the installation heights of the first support 131 and the second support 132 are higher than the installation heights of the third support 133 and the fourth support 134 .
According to claim 1,
The auxiliary bypass chamber 182 is a total heat exchanger having a bypass chamber in which bets introduced from the room are moved to the lower main bypass chamber 181 or the side heat exchange element 110 only through the damper.
According to claim 1,
A first damper D1 communicating with the exhaust fan 141 to control the discharge of the bet is provided on one side of the first space 140,
A vent 152 communicating with the air supply fan 151 is provided at one side portion of the second space 150 so that indoor air can enter and exit,
A second damper D2 for controlling the entry and exit of external air OA is provided on one side of the third space 160 , and the main bypass chamber ( 181) and a third damper (D3) for controlling the entry and exit of air is provided,
A fourth damper D4 for controlling the auxiliary bypass chamber 182 and air to enter and exit is provided in the fourth space 170 , and the main bypass chamber 182 has a bottom surface of the auxiliary bypass chamber 182 . A total heat exchanger having a bypass chamber provided with a fifth damper (D5) for controlling air flow with the chamber (181).
7. The method of claim 6,
A general ventilation mode in which outdoor air (outdoor air, OA) is supplied to and ventilated the room while expelling indoor air (bet, RA) to the outside, and indoor air is introduced into the bypass chamber 180, which is then transferred back to the heat exchange element ( 110) to re-supply to the room and ventilate the room cleanly, by discharging indoor air through the bypass chamber 180 and supplying only outdoor air to the room through the heat exchange element 110 In pass mode, and indoor air is introduced into the reverse side of the heat exchange element 110 and discharged to the outside through the bypass chamber 180, foreign substances collected in the filter unit 111 of the air inlet are discharged to the outside and removed. A total heat exchanger equipped with a bypass chamber operated in any one of the filter exhaustion modes.
8. The method of claim 7,
In the general ventilation mode, the supply fan 151 and the exhaust fan 141 are turned on, the first, second, and fourth dampers D1, D2, and D4 are turned on, and the third and fifth dampers D3 and D5 are turned on. ) is OFF,
External air OA flows into the third space 160 through the second damper D2, passes through the filter unit 111, passes through the heat exchange element 110, and then passes through the second space unit ( 150) and supplied to the room through the air supply fan 151 and the ventilation hole 152,
The indoor air (RA) flows into the auxiliary bypass chamber 182 through the bypass vent 183 and then enters the fourth space 170 through the fourth damper D4 to enter the heat exchange element ( A total heat exchanger having a bypass chamber that is discharged to the outside through the first damper D1 through the first space 140 and the exhaust fan 141 after exchanging heat with the outside air while passing through 110).
8. The method of claim 7,
In the indoor air cleaning mode, the supply fan 151 is turned on, the exhaust fan 141 is turned off, the third damper D3 and the fifth damper D5 are turned on, and the first damper ( D1), the second damper D2, and the fourth damper D4 are turned off,
After the indoor air (RA) flows into the auxiliary bypass chamber 182 through the bypass vent 183, it enters the main bypass chamber 181 through the fifth damper D5. It flows into the third space 160 through the third damper D3, passes through the filter unit 111, passes through the heat exchange element 110, and then flows into the second space 150 to flow into the air supply fan. A total heat exchanger having a bypass chamber that is re-supplied into the room through (151) and the vent (152).
8. The method of claim 7,
In the filter exhaustion mode, the air supply fan 151 is turned off, the exhaust fan 141 is turned on, the first and third dampers D1 and D3 are turned on, and the second, fourth, and fifth dampers D2 and D4 are turned on. ,D5) is OFF,
After the indoor air is introduced into the second space 150 through the vent 152 by the exhaust fan 141, it passes through the filter unit 111 through the heat exchange element 110 in reverse. The collected foreign matter is removed and introduced into the third space 160, then enters the main bypass chamber 181 through the third damper D3, and then through the communication port 181a through the first space ( 140), a total heat exchanger having a bypass chamber that is discharged to the outside through the exhaust fan 141 and the first damper D1.
8. The method of claim 7,
In the bypass mode, the air supply fan 151 and the exhaust fan 141 are turned on, the first, second, and fifth dampers D1, D2, and D5 are turned on, and the third and third dampers D3, D4) is OFF,
External air OA flows into the third space 160 through the second damper D2 and then passes through the filter unit 111 and the heat exchange element 110 and then passes through the second space. While flowing in 150, it is supplied into the room through the air supply fan 151 and the vent 152,
The indoor air RA flows into the auxiliary bypass chamber 182 through the bypass vent 183 and then enters the main bypass chamber 181 through the fifth damper D5, and then the communication A total heat exchanger having a bypass chamber that flows into the first space 140 through the sphere 181a and is discharged to the outside through the exhaust fan 141 and the first damper D1.
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