KR101578528B1 - a Heat exchanger ventilator with bypass line - Google Patents

a Heat exchanger ventilator with bypass line Download PDF

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Publication number
KR101578528B1
KR101578528B1 KR1020150109181A KR20150109181A KR101578528B1 KR 101578528 B1 KR101578528 B1 KR 101578528B1 KR 1020150109181 A KR1020150109181 A KR 1020150109181A KR 20150109181 A KR20150109181 A KR 20150109181A KR 101578528 B1 KR101578528 B1 KR 101578528B1
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KR
South Korea
Prior art keywords
air
outside air
communication hole
bypass
outside
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KR1020150109181A
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Korean (ko)
Inventor
박혜진
이경순
태경응
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은성화학(주)
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Priority to KR1020150109181A priority Critical patent/KR101578528B1/en
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Publication of KR101578528B1 publication Critical patent/KR101578528B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)

Abstract

The present invention relates to a heat recovery ventilator for exchanging heat between an inside air and an outside air. A heat recovery ventilator having a bypass flow path according to an embodiment of the present invention includes a main body case having an exhaust port and an external mechanism formed on one side thereof and a ventilation hole and an air supply mechanism formed on the other side thereof, A heat exchanging element for exchanging heat between the outside air sucked into the outside air and the inside air sucked by the ventilation hole, and a blower for forcibly flowing the outside air and the inside air, wherein the main body case passes through an outside space communicating with the outside mechanism And an air supply hole formed to penetrate through the air supply space communicating with the air supply mechanism, so that outside air that is sucked through the outside air communication hole and covers the outside of the main body case is directly supplied to the air supply communication hole A bypass cover for forming an outside air bypass flow path, and a bypass cover provided in the external mechanism, A second outlet for sending outdoor air sucked by the first suction port to the outdoor air communication hole, a first outlet for sending outdoor air sucked by the first suction port to the heat exchange element, and a second outlet Way damper including a first door that selectively seals any one of the discharge port, the second discharge port, and the second discharge port. Therefore, it is possible to easily construct a bypass flow path that can directly supply or discharge fresh air or outside air to an existing heat recovery ventilator.

Description

[0001] The present invention relates to a heat exchanger ventilator with bypass line,

The present invention relates to a heat recovery ventilator for exchanging heat between an inside air and an outside air.

Generally, the building is provided with an air conditioner for cooling and heating indoor air.

Such an air conditioner directly exchanges outdoor air and indoor air, and therefore energy efficiency is degraded when the temperature difference between indoor and outdoor is large.

In order to compensate for this, a large number of heat recovery ventilators having a heat exchange element capable of minimizing the temperature difference between the indoor air and the outdoor air during the exchange of the indoor air and the outdoor air have been installed.

An example of a heat recovery type ventilator is disclosed in Korean Patent No. 10-1513650 (issued on February 21, 2015).

The conventional heat recovery type ventilator includes an outdoor air intake port through which outdoor air is sucked, an outdoor air outlet port through which the air sucked by the outdoor air intake port is discharged to the room, an indoor air intake port through which indoor air is sucked, A heat exchanging element installed in the main body housing for exchanging heat between the outdoor air and the room air, a room heat exchanger installed in the room air outlet and the outdoor air outlet for forcibly sucking or inhaling the air, A bypass passage provided in the main body housing for discharging indoor air sucked by the indoor air intake port to the room air outlet without passing through the heat exchange element, a bypass passage connected to the indoor air inlet port, Or the indoor air sucked into the indoor air intake port is subjected to the heat exchange Way damper selectively supplying the air to the device or the bypass passage, and a controller for controlling the blower and the three-way damper.

In the conventional heat recovery type ventilator having such a configuration, indoor air and outdoor air are heat-exchanged in the heat exchanging element, so that the temperature can be compensated for when the temperature difference between the room and the outside is large.

In addition, since the bypass passage is provided to supply outdoor air directly to the room without passing through the heat exchange element, it is possible to increase the damage and the service life due to deterioration of the heat exchange element.

However, in the conventional heat recovery type ventilator, since the internal structure needs to be changed in order to form the bypass passage, there has been a problem in forming a bypass passage in the existing heat recovery ventilator.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a heat recovery ventilator having a bypass flow path that can easily apply a bypass flow to an existing heat recovery ventilator, .

According to an aspect of the present invention, there is provided a heat recovery ventilation system including a bypass flow path, a body case having an exhaust port and an external mechanism formed on one side of the bypass flow path, And a blower for forcibly flowing the outside air and the inside air, wherein the main body case is provided with the outer casing and the outer casing, The air conditioner according to any one of claims 1 to 3, further comprising: an outside air communication hole formed through the communicating external air space; and an air feed hole formed through the air supply space communicated with the air supply device, A bypass cover for forming an outside air bypass flow path so as to be supplied directly to the air supply communication hole, A second outlet for sending the outside air taken in by the first inlet to the outside air communication hole, a first outlet for sending outside air sucked by the first inlet to the heat exchange element, Direction damper including a first door selectively sealing one of the first suction port, the first discharge port, and the second discharge port.
Wherein the main body case further includes a ventilation communication hole formed through a ventilation space communicating with the ventilation hole and an exhaust communication hole formed through the ventilation space in communication with the ventilation hole, A flow guide provided in the bypass cover for partitioning the internal bypass flow passage and the outside air bypass flow passage so as to be supplied directly to the exhaust communication hole, and a second intake port provided in the ventilation hole, through which the internal air is sucked, A fourth outlet for sending the sucked vapors to the ventilation communication hole, a third outlet for sending the inner suctioned by the second suction inlet to the heat exchanging element, and a second outlet for selectively connecting the second suction inlet, the third outlet, Way damper including a second door which is hermetically sealed.
The flow path guide includes a guide plate portion for vertically dividing the outside air bypass passage and the internal bypass flow passage, an upper side wall portion projecting upward from both side ends of the guide plate portion, And the lower side surface film portions projecting downward from the both side ends.
A heat recovery ventilator having a bypass flow path according to another embodiment of the present invention includes a main body case having an exhaust port and an external mechanism formed on one side and a ventilation hole and an air supply mechanism on the other side, A heat recovery ventilator comprising a heat exchanging element for exchanging heat between an outside air sucked by a mechanism and an inside air sucked by a ventilator, and a blower for forcibly flowing the outside air and the inside air, wherein the main body case passes through a ventilation space And an exhaust communication hole formed through the exhaust air space communicated with the exhaust hole, wherein the exhaust air communication hole is formed in the exhaust communication hole, A cover, and a second suction port provided in the ventilation hole and through which the inside air is sucked, A third outlet for sending the inside air sucked into the second inlet port to the heat exchanging element, and a third outlet for sending the second inlet, the third outlet and the fourth outlet to the ventilation communication hole Way three-way damper including a second door that seals the first door and the second door.
The heat recovery ventilator having a bypass flow path according to another embodiment of the present invention includes a main body case having an exhaust port and an external mechanism formed on one side thereof and a ventilation hole and a supply mechanism formed on the other side thereof, A heat exchanging element for exchanging heat between the outside air sucked by the outside mechanism and the inside air sucked by the ventilation hole, and a blower for forcibly flowing the outside air and the inside air, wherein the main body case has an air supply space communicating with the air supply device A first exhaust port provided in the outer mechanism and sucking the outside air, a first exhaust port coupled to the external device, and a second exhaust port formed in the outer air inlet, 2 outlet, and a first door that selectively seals any one of the first inlet, the first outlet, and the second outlet A first communication port communicating with the second outlet of the outside air three-way damper, and a second communication port communicating with the outside air bypass flow path to cover the main body case and supply the outside air introduced through the first communication port to the air supply communication hole, And an outer air bypass cover which forms the outer cover.
Wherein the main body case includes an exhaust communication hole formed to pass through an exhaust space communicated with the exhaust port, wherein the main body case is provided with a second communication hole provided in the ventilation hole and in which the inside air is sucked, a third outlet coupled to the ventilation hole, And a second door that selectively closes any one of the second suction port, the third discharge port, and the fourth discharge port, and a third three-way damper including the third suction port, A second communication hole communicating with the fourth exhaust port of the three-way damper, and an inner bypass cover covering the main body case and forming an inner bypass flow path for providing the inner air introduced through the second communication hole to the exhaust communication hole can do.
The heat recovery ventilator having a bypass flow path according to another embodiment of the present invention includes a main body case having an exhaust port and an external mechanism formed on one side thereof and a ventilation hole and a supply mechanism formed on the other side thereof, A heat recovery ventilating apparatus comprising a heat exchanging element for exchanging heat between outdoor air sucked by an outer mechanism and indoor air sucked by a ventilator, and a blower for forcibly flowing the outdoor air and the indoor air, wherein the body case penetrates an exhaust space communicating with the exhaust port And a fourth outlet for discharging the inside air sucked into the second air inlet to the outside, and a second air outlet formed in the air outlet for discharging the inside air to the outside, And a second door that selectively seals any one of the second inlet, the third outlet, and the fourth outlet, A three-way damper, and a second communication hole communicating with the fourth exhaust port of the internal three-way damper, and an internal bypass flow path for providing the internal air introduced through the second communication hole to the exhaust communication hole is formed And a bypass bypass cover which is made of a synthetic resin.

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According to the present invention, there is provided a bypass valve which is capable of bypassing indoor air or outdoor air in a conventional heat recovery ventilator in the form of a communication hole communicating with the indoor or outdoor air in the body case, Can be easily configured.

1 is a perspective view schematically illustrating a heat recovery ventilator having a bypass flow path according to a first embodiment of the present invention.
FIG. 2 is an internal configuration diagram of a heat recovery ventilator having a bypass flow path according to a first embodiment of the present invention.
FIG. 3 is a cross-sectional view taken along the line AA in FIG. 2, showing the movement of the outside air in the bypass mode.
Fig. 4 is a cross-sectional view taken along the line AA in Fig. 2, showing the movement of the outside air in the heat exchange mode.
5 is a perspective view schematically illustrating a heat recovery ventilator having a bypass flow path according to a second embodiment of the present invention.
Fig. 6 is a cross-sectional view taken along the line CC of Fig. 5, showing the movement of the inside air when the air conditioner is in the bypass mode.
7 is a perspective view schematically illustrating a heat recovery ventilator having a bypass flow path according to a third embodiment of the present invention.
FIG. 8 is a perspective view illustrating a flow guide of a heat recovery ventilator having a bypass flow path according to a third embodiment of the present invention.
FIG. 9 is a cross-sectional view taken along the line DD of FIG. 7, showing the movement of the outside air in the bypass mode.
Fig. 10 is a sectional view taken along the line EE of Fig. 7, showing the movement of the inside air in the bypass mode.
11 is a perspective view schematically illustrating a heat recovery ventilator having a bypass flow path according to a fourth embodiment of the present invention.
Fig. 12 is a sectional view taken along the line GG in Fig. 11, showing the movement of the outside air in the bypass mode.
13 is a perspective view schematically illustrating a heat recovery ventilator having a bypass flow path according to a fifth embodiment of the present invention.
Fig. 14 is a cross-sectional view taken along the line HH in Fig. 13, and shows the movement of the inside air when in the bypass mode.
15 is a perspective view schematically illustrating a heat recovery ventilator having a bypass flow path according to a sixth embodiment of the present invention.
Fig. 16 is a sectional view taken along line II in Fig. 15, and shows the movement of the outside air in the bypass mode. Fig.
Fig. 17 is a cross-sectional view taken along the line JJ in Fig. 15, showing the movement of the inside air in the bypass mode.

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

1 and 2, the present invention is a technique for forming a bypass flow path in a conventional heat recovery ventilator 100, wherein a conventional heat recovery ventilator 100 includes a main body case 110 .

The main body case 110 may be formed in a box shape having a hollow square shape. The main body case 110 has an outer mechanism 111 through which outside air (outdoor air) The air outlet 114 may be spaced apart from the air outlet 114. The air outlet 113 may be spaced apart from the air outlet 112 through which the outside air is supplied to the room.

At this time, the exhaust port 114 and the ventilation hole 113, and the air supply mechanism 112 and the external mechanism 111 can be positioned in diagonal directions so that the inside air and the outside air can cross each other inside the main body case 110 have.

A heat exchanger 130 may be disposed inside the main body case 110 to exchange heat between the inner and outer air to exchange heat. The heat exchanger 130 has a square shape, Is positioned between the air supply mechanism 112 and between the air supply mechanism 112 and the air supply port 113, between the external mechanism 111 and the air supply port 113, and between the external mechanism 111 and the air discharge opening 114 That is, the respective surfaces of the heat exchanging element 130 may be arranged in a rhombus shape so as to be positioned toward the external mechanism 111, the exhaust port 114, the air supply mechanism 112, and the vent 113.

A space between the heat exchanging element 130 and the exhaust port 114 in the body case 110 may be an exhaust space 114a and a space between the heat exchanging element 130 and the air feed mechanism 112 may be a space between the heat exchanging element 130 and the exhaust port 114, The space between the heat exchanging element 130 and the vent 113 may be the ventilation space 113a and the space between the heat exchanging element 130 and the outside 111 may be the outside space 111a.

An outside air blower 123 for forcibly blowing air to suck the outside air through the external mechanism 111 and discharge it to the air supply mechanism 112 may be installed in the air supply mechanism 112, The air blowing fan 121 for blowing air for forcibly blowing air into the air outlet 114 for sucking the air into the air outlet 114 may be installed in the air outlet 114 as well.

A filter 135 may be provided on the surface of the heat exchanging element 130 through which the outside air or air passes or the inside or outside air passes through the body case 110. The filter 135 may filter the foreign substances contained in the air, 135 may be installed with various known filters.

The heat recovery ventilator 100 configured as described above is configured to operate the inside air blower 121 to suck indoor air through the vent 113 and discharge it to the vent 114 through the heat exchanger 130 In the case of the air supply mode, the air blower 123 is operated to suck ambient air through the outer mechanism 111, and is supplied to the air supply device (not shown) via the heat exchanging element 130 112 to supply the outside air to the room.

In the heat exchange mode, both the indoor air blower 121 and the outdoor air blower 123 are operated so that the indoor air and the outdoor air pass through the heat exchanging element 130. In this state, Can be supplied to the room.

The present invention can form a bypass flow path so that fresh air or outside air can be supplied directly to the room without passing through the heat exchanging element 130 or discharged to the outside of the existing heat recovery ventilator 100 constructed as described above.

As shown in FIGS. 1 to 4, the heat recovery ventilator 100 including the bypass flow path according to the first embodiment of the present invention bypasses outside air and supplies the outside air to the room The flow path 171 can be formed.

Meanwhile, the heat recovery ventilator 100 including the bypass flow path according to the first embodiment may include the outside air communication hole 115 and the feed air hole 116.

The outside air communication hole 115 can be formed in a space between the external device 111 and the heat exchanging element 130 on the upper surface or the bottom surface of the main body case 110 or through the outside space 111a, The combustion hole 116 is formed in the upper surface or the lower surface of the same main body case 110 in which the outside air communication hole 115 is formed and between the air supply mechanism 112 and the heat exchange element 130, .

The heat recovery ventilator 100 including the bypass flow path according to the first embodiment may include a bypass cover 170. [

The bypass cover 170 may be formed to cover the surface of the main body case 110 where the outside air communication hole 115 and the feed opening 116 are formed to define an outside air bypass passage 171.

The bypass cover 170 has a predetermined height and a circumference similar to the circumference of the main body case 110 so as to form the outside air bypass flow path 171. The periphery of the bypass cover 170 is bent outward, Or a fastening member such as a rivet.

At this time, the bypass cover 170 may be formed in the form of a duct.

The heat recovery ventilator 100 including the bypass flow path according to the first embodiment may include an outside air three-way damper 150.

The outside air three-way damper 150 may include a first suction port 151, a first discharge port 152, and a second discharge port 153.

The first suction port 151 may be formed with a first discharge port 152 for sucking outside air and discharging the outside air sucked into the first suction port 151 in a straight line with the first suction port 151. In the vertical direction between the first suction port 151 and the first discharge port 152, the outside air sucked into the first suction port 151 is discharged to the second discharge port 153 may be formed.

In addition, the outside air three-way damper 150 may include a door 155.

The first door 155 is installed between the first suction port 151, the first discharge port 152 and the second discharge port 153 and has a first suction port 151, a first discharge port 152, (153) can be sealed.

On the other hand, the first door 155 can be rotated by the motor, and the motor can be controlled by the control unit of the heat recovery ventilator 100.

The outside air three-way damper 150 is installed in the external mechanism 111 so that the first suction port 151 is exposed to the outside of the main body case 110 to perform the function of the external mechanism 111, 152 may be located in the interior of the main body case 110, that is, the outside air space 111a, to discharge the outside air sucked in the direction in which the heat exchanging element 130 is located.

The second outlet 153 is connected to the outside air communication hole 115 so that the outside air sucked into the first suction hole 151 can be supplied to the outside air bypass passage 171 according to the position of the first door 155 have.

At this time, the second outlet 153 and the outside air communication hole 115 may be connected by a flexible connection pipe 140.

When the first door 155 closes the first discharge port 152, the outside air is sucked into the first suction port 151 and discharged to the second discharge port 153, When the first door 155 closes the second outlet 153, the outside air is sucked into the first suction port 151 and discharged to the first outlet 152, so that the heat exchange element 130).

In addition, when the first door 155 closes the suction port 151, the inflow of outside air can be blocked.

The heat recovery ventilator 100 including the bypass flow path according to the first embodiment may further include a bypass mode in addition to the air supply mode, the heat exchange mode, and the ventilation mode.

When operating in the air supply mode, the first door 155 of the outside air three-way damper 150 operates to seal the second outlet 153 and the outside air blower 123 operates.

When the outside air blower 123 is operated, the outside air is sucked into the first suction port 151 of the outside air three-way damper 150 and discharged to the first discharge port 152 and discharged through the first discharge port 152, And supplies the outside air to the room in a form that the room air is discharged to the air supply mechanism 112 through the device 130 and the outside air blower 123.

4, when the air conditioner operates in the heat exchange mode, the indoor air blower 121 operates in conjunction with the operation of the outdoor air blower 123, so that the indoor air is blown by the indoor air blower 121 through the air inlet 113, Exchanges heat with the outside air through the heat exchanger 130 passing through the outside air, and then discharges the inside air to the outside through the vent hole 121 through the vent hole 114. [

The first door 155 of the outside air three-way damper 150 is operated to seal the first suction port 151 and only the inside air blower 121 is operated so that the air is blown through the vent 113 The exhaust gas can be sucked through the heat exchanging element 130 and then discharged through the exhaust port 114 again.

3, when the air conditioner operates in the bypass mode, the first door 155 of the outside air three-way damper 150 seals the first outlet 152 and the outside air blower 123 operates do.

When the outside air blower 123 is operated, the outside air is sucked into the first suction port 151 of the outside air three-way damper 150 and discharged to the second discharge port 153. The outside air discharged through the second discharge port 153 is heat- And enters the outside air bypass flow path 171 through the outside air communication hole 115 without passing through the element 130.

The outside air passing through the outside air bypass passage 171 is discharged to the air supply space 112a through the air supply vent hole 116 and the outside air discharged into the air supply space 112a is discharged through the air supply fan 123 112), and the outside air is supplied to the room.

Here, the outside air or outside air bypass flow path can directly prevent the deterioration of the heat exchange element 130 by discharging or supplying outside air or outside air directly to the outside without passing through the heat exchange element 130, It is possible to reduce the resistance due to the movement of the air, thereby reducing the power consumption required by the blower, but also reducing the noise.

In addition, when the operation of the heat recovery ventilator 100 is stopped, the door 155 of the outside air three-way damper 150 operates to close the first suction port 151 to block the inflow of the outside air, Can be prevented.

Therefore, the heat recovery ventilator 100 including the bypass flow path according to the first embodiment of the present invention can supply outside air to the room without passing through the heat exchange element 130 to the existing heat recovery ventilator 100 The outside-air bypass flow path 171 can be easily configured.

As shown in FIGS. 4 and 5, the heat recovery ventilator 100 including the bypass flow path according to the second embodiment of the present invention includes a bypass bypass flow path (bypass flow path) 173 can be formed.

Meanwhile, the heat recovery ventilator 100 including the bypass flow path according to the second embodiment may include a ventilation communication hole 117 and an exhaust communication hole 118.

The ventilation communication hole 117 can be formed in a space between the vent 113 and the heat exchanging element 130 on the upper surface or the bottom surface of the main body case 110 or through the ventilation space 113a, The air hole 118 is formed in the form of penetrating through the exhaust port 114 and the heat exchange element 130, that is, through the exhaust space 114a, from the upper surface or the lower surface of the same main body case 110 in which the ventilation communication hole 117 is formed can do.

The heat recovery ventilator 100 including the bypass flow path according to the second embodiment may include the bypass cover 170. [

The bypass cover 170 is provided to cover the surface of the main body case 110 where the ventilation communication hole 117 and the vent communication hole 118 are formed to form the inside air bypass passage 173.

The bypass cover 170 has a predetermined height and a circumference similar to the circumference of the main body case 110 so as to form the inner bypass flow path 173 and the outer periphery thereof is bent outward, Or a fastening member such as a rivet.

At this time, the bypass cover 170 may be formed in the form of a duct in which a surface contacting the main body case 110 is opened.

The heat recovery ventilator 100 including the bypass flow path according to the second embodiment may include an internal three-way damper 160.

This three-way three-way damper 160 may include a second suction port 161, a third discharge port 162, and a fourth discharge port 163.

The second suction port 161 may be formed with a third discharge port 162 for sucking the inside air and discharging the inside air sucked into the second suction port 161 in a straight line with the second suction port 161. In the vertical direction between the second suction port 161 and the third discharge port 162, the inside air sucked into the second suction port 161 is discharged in a direction different from the third discharge port 162 163 may be formed.

The three-way three-way damper 160 may include a second door 165.

The second door 165 is installed between the second suction port 161, the third discharge port 162 and the fourth discharge port 163 and has a second suction port 161, a third discharge port 162, (163).

On the other hand, the second door 165 can be rotated by the motor, and the motor can be controlled by the control unit of the heat recovery ventilator 100.

The three-way three-way damper 160 is installed in the vent 113 so that the second vent 161 is exposed to the outside of the main body case 110 to function as the vent 113. The third vent 162, The indoor heat exchanger 130 may be disposed in the ventilation space 113a of the main body case 110 to discharge the sucked air in a direction in which the heat exchanging element 130 is positioned.

The fourth outlet 163 is connected to the ventilation communicating hole 117 so that the inside air sucked into the second air inlet 161 can be supplied to the inside bypass passage 187 according to the position of the second door 165 have.

At this time, the fourth outlet 163 and the ventilation communication hole 117 may be connected by a flexible connection pipe 140.

When the second door 165 closes the third outlet 162 as described above, the indoor air is sucked into the second suction port 161 and discharged to the fourth discharge port 163, When the second door 165 presses the second outlet 1163, the air is sucked into the second inlet 161 and discharged to the third outlet 162, so that the heat exchange element 130).

Further, when the second door 165 closes the second suction port 161, the inflow of the inside air can be blocked.

The heat recovery ventilator 100 including the bypass flow path according to the second embodiment may further include a bypass mode in addition to the air supply mode, the heat exchange mode, and the ventilation mode.

When operating in the air supply mode, the second door 165 of the bet three-way damper 160 operates to seal the air inlets 151 and 161, and at the same time, the outside air blower 123 operates.

When the outside air blower 123 is operated, the outside air flows into the main body case 110 through the external mechanism 111. The introduced outside air passes through the heat exchange element 130 and is discharged to the air supply mechanism 112 through the air supply blower The outside air is supplied to the room.

When operating in the heat exchange mode, the blower 121 operates in conjunction with the operation of the outdoor air blower 123, and the second door 165 of the indoor three-way damper 160 closes the fourth outlet 163 Direction air damper 160 is discharged to the third discharge port 162 through the second suction port 161 of the three-way damper 160 by the air blowing fan 121 and the air discharged through the third discharge port 162 is subjected to heat exchange The inner air is discharged to the outside in the form of being discharged to the air outlet 114 through the air blower 121 through the element 130.

At the same time, the outside air is sucked into the outside mechanism 111, exchanges heat with the inside air through the heat exchanging element 130, and then is discharged to the air supply mechanism 112 through the outside air blower 123.

At this time, the indoor air and the outdoor air are exchanged with each other by the heat exchanging element 130 while passing through the heat exchanging element 130, and the outdoor air is supplied to the room with the temperature and humidity similar to each other.

When the ventilation mode is operated, the second door 165 of the three-way three-way damper 160 is operated to close the fourth outlet 163, and only the blowing fan 121 is operated so that the three-way damper 160 Is discharged to the fourth discharge port 163 and the discharged inner discharge is discharged to the discharge port 114 through the blowing fan 121 through the heat exchanging element 130 The vent is discharged to the outside.

Further, when operating in the bypass mode, the doors 155 and 165 of the three-way three-way damper 160 seal the third outlet 162 and the blower 121 operates.

When the blowing fan 121 is operated, the internal air is sucked into the second suction port 161 of the internal three-way damper 160 to be discharged to the fourth discharge port 163, and the internal discharge, which is discharged through the fourth discharge port 163, Bypass flow path 173 through the ventilation communication hole 117 without passing through the vent hole 130.

The inside air passing through the inside air bypass passage 173 is discharged to the exhaust space 114a through the exhaust communication hole 118 and the inside air discharged into the exhaust space 114a flows through the inside air blower 121 to the exhaust hole 114 And the vent is discharged to the outside in the form of being discharged.

Therefore, the heat recovery ventilator 100 having the bypass flow path according to the second embodiment of the present invention can discharge the indoor air directly to the outside without passing through the heat exchange element 130 to the conventional heat recovery ventilator 100 It is possible to easily configure the bypass bypass flow path 173 with the bypass flow path.

As shown in FIGS. 7 to 10, the heat recovery ventilator 100 including the bypass flow path according to the third embodiment of the present invention includes a bypass bypass flow path (not shown) 173 and the outside air bypass passage 171 so that the outside air can be bypassed and supplied to the room.

The heat recovery ventilator 100 including the bypass flow path according to the third embodiment of the present invention is provided with the outside air communication hole 115 and the feed air hole 116 as in the first embodiment, The ventilation communication hole 117 and the exhaust communication hole 118 of the second embodiment are also formed.

The bypass cover 170 covers the outside air communication hole 115, the feed air hole 116, the ventilation communication hole 117, and the exhaust communication hole 118 in the same manner as in the first embodiment or the second embodiment. . ≪ / RTI >

Meanwhile, the bypass cover 170 may include a flow guide 175 (see FIG. 8).

The flow path guide 175 may be installed inside the bypass cover 170 to partition the inside air bypass passage 173 and the outside air bypass passage 171.

Meanwhile, the flow guide 175 may include a guide plate portion 176, an upper side wall portion 177, and a lower side wall portion 178.

The guide plate portion 176 is formed in a flat plate shape so that the inside air bypass passage 173 and the outside air bypass passage 171 can be divided into upper and lower portions.

The upper side wall portion 177 may protrude from both ends of the guide plate portion 176 and the lower side wall portion 178 may protrude downward from both ends of the guide plate portion 176. [

At this time, the upper side film portion 177 and the lower side film portion 178 may be formed protruding at different ends.

For example, when the upper side film portion 177 is formed so as to protrude upward from both the left and right ends of the guide plate portion 176, the lower side film portion 178 is formed at both the front and rear ends of the guide plate portion 176 And may protrude downward.

Here, when the upper side film 177 is the inner bypass passage 173 with the guide plate 176 as the center, the outer side bypass passage 171 is formed between the lower side film portions 178 .

The flow path guide 175 has a communication hole such as the exhaust communication hole 118 in which the openings of the upper side film portion 177 or the lower side film portion 178 are positioned diagonally to each other like the heat exchange element 130, Ventilation communication hole 117 or in the bypass cover 170 in the form of a rhombus so as to face the air supply vent hole 116 and the outside air communication hole 115.

At this time, the bypass cover 170 may be formed with a support portion for sealing the edge of the flow guide 175 and the periphery of the bypass cover 170 and supporting the flow guide 175.

At the lower end of the upper and lower side wall portions 178 of the upper side wall portion 177, air is sealed between the main body case 110 and the lower side wall portion 178, It may be provided with a sealing member 179 that seals the membrane 177.

Here, the seal member 179 may be formed of a material having an elastic force so that when the bypass cover 170 is installed in the main body case 110, the seal member 179 can be configured to be compressed and tightly sealed.

The heat recovery ventilator 100 including the bypass flow path according to the third embodiment is provided with the outside air three-way damper 150 in the outer mechanism 111 as in the first embodiment, Way three-way damper 160 is installed in the same manner as in the second embodiment.

The heat recovery ventilator 100 having the bypass flow path according to the third embodiment of the present invention configured to selectively pass the outside air flowing through the external mechanism 111 according to the bypass mode through the outside air three- The outside air passing through the outside air bypass passage 171 is supplied to the room through the air supply mechanism 112 and the outside air can be supplied to the room without passing through the heat exchange element 130 (See FIG. 9).

The internal air flowing through the vent 113 is supplied to the internal bypass flow path 173 through the internal three-way damper 160 and the internal flow passing through the internal bypass flow path 173 is discharged to the outside through the exhaust port 114 The inside air can be discharged to the outside without passing through the heat exchanging element 130 (see Fig. 10).

Therefore, the heat recovery ventilator 100 including the bypass flow path according to the third embodiment of the present invention is provided with a heat recovery ventilator 100 for supplying the outside air to the room without passing through the heat exchange element 130, The bypass passage 171 and the internal bypass passage 173 for discharging the inside air to the outside without passing through the heat exchange element 130 can be easily configured.

11 and 12, the heat recovery ventilator 100 including the bypass flow path according to the fourth embodiment of the present invention is constructed in the same manner as the first embodiment, except that the outside air three- (150) and an outer air bypass cover (180).

The heat recovery ventilator 100 including the bypass flow path according to the fourth embodiment may be installed in the external device 111 such that the second outlet 153 of the outside air three-way damper 150 is exposed to the outside.

That is, in the fourth embodiment, the first outlet 152 of the outside-air three-way damper 150 is fitted to the outer mechanism 111, and the inlet 151 and the second outlet 153 are connected to the outside of the main body case 110 As shown in FIG.

The main body case 110 is formed with only the feed opening 116 and the outside air communication hole 115 is not formed.

The outer cover 180 can be formed in the same manner as the bypass cover 170 of the first embodiment. The outer cover bypasses the outside air bypassed through the second outlet 153 by the second outlet 153, A first communication hole 181 for guiding to the flow path 183 may be formed protruding downward from the side surface.

The outside air bypass cover 180 in the fourth embodiment is formed in the form of a duct so as to connect the first communication hole 181 with the feed opening 116.

The heat recovery ventilator 100 including the bypass flow path according to the fourth embodiment constructed as described above is configured such that the outside air sucked into the inlet 151 of the outside air three-way damper 150, when operating in the bypass mode, The outside air supplied to the first communication hole 181 is discharged to the air discharge hole 116 through the outside air bypass passage 183 and discharged to the outside air blower 123 to the air supply mechanism 112, the outside air can be supplied to the room without passing through the heat exchanging element 130.

Accordingly, the heat recovery ventilator 100 including the bypass flow path according to the fourth embodiment of the present invention can supply outside air to the room without passing through the heat exchange element 130 to the existing heat recovery ventilator 100 The outside-air bypass flow path 183 can be easily configured.

13 and 14, the heat recovery ventilator 100 having a bypass flow path according to the fifth embodiment of the present invention is constructed in the same manner as the second embodiment, except that the inner three-way damper (160) and an inner bypass cover (185).

The heat recovery ventilator 100 including the bypass passage according to the fourth embodiment may be installed in the vent 113 such that the fourth vent 163 of the inner three-way damper 160 is exposed to the outside.

That is, in the fourth embodiment, the third outlet 162 of the three-way three-way damper 160 is inserted into the vent hole 113, and the second inlet 161 and the fourth outlet 163 are fitted into the body case 110 And is installed to be exposed to the outside.

Further, only the exhaust communication hole 118 is formed in the main body case 110, and the ventilation communication hole 117 is not formed.

The inner bypass cover 185 may be formed in the same manner as the bypass cover 170 of the second embodiment and the inner bypass cover 185 may include a fourth outlet 163 and a fourth outlet 163, And a second communication hole 186 for guiding the inside air discharged to the bypass bypass flow path 187 to the lower side.

The ETC bypass cover 185 in the fifth embodiment is formed in the form of a duct so that the second communication hole 186 and the exhaust communication hole 118 can be connected to each other.

In the heat recovery ventilator 100 having the bypass flow path according to the fifth embodiment constructed as described above, when the internal air sucked into the second suction port 161 of the internal three-way damper 160 when operating in the bypass mode The air supplied to the second communication hole 186 is discharged to the exhaust communication hole 118 via the inside air bypass flow path 187 and is supplied to the second air communication hole 186 through the fourth air outlet 163, It is possible to supply the outside air to the room without passing through the heat exchanging element 130 in the form of discharging the air to the air outlet 114 through the air outlet 121.

Therefore, the heat recovery ventilator 100 including the bypass flow path according to the fifth embodiment of the present invention can discharge the indoor air directly to the outside without passing through the heat exchange element 130 to the conventional heat recovery ventilator 100 The bypass bypass flow path 187 can be easily configured.

As shown in FIGS. 15 to 17, the heat recovery ventilator 100 having the bypass flow path according to the sixth embodiment of the present invention can be configured together with the fourth embodiment and the fifth embodiment.

The heat recovery ventilator 100 having the bypass flow path separately according to the sixth embodiment has the exhaust communication hole 118 and the feed hole 116 formed in the main body case 110 and the external communication hole 111 A three-way air damper 150 is installed so that the second outlet 153 and the air inlet 151 are exposed to the outside of the main body case 110 as in the fourth embodiment. Way damper 160 is installed so that the fourth outlet 163 and the second inlet 161 are exposed to the outside of the main body case 110. [

The first communication hole 181 of the outside air bypass cover 180 is installed to connect the second outlet 153 of the outside air three-way damper 150 to the air feed through hole 116, The second communication hole 186 of the three-way damper 160 is installed to connect the fourth exhaust port 163 of the three-way three-way damper 160 to the exhaust communication hole 118.

At this time, the outside-air bypass cover 180 and the inside-air bypass cover 185 are formed to have the same height. In the center portion, they intersect with each other. The other one may be formed so as to pass under the same, so that the same height can be formed at a portion where the crossing portion is fitted in the form of being fitted in the intersecting portion.

It is a matter of course that the outside air bypass cover 180 and the inside air bypass cover 185 are formed so as to be completely separated from each other only at the portion where the outside air bypass passage 183 and the inside air bypass passage 187 intersect .

In the heat recovery ventilator 100 having the bypass flow path according to the sixth embodiment of the present invention configured as described above, the outside air flowing through the external mechanism 111 selectively through the external-air three-way damper 150 according to the bypass mode And the outside air passing through the outside air bypass passage 183 is supplied to the room through the air supply mechanism 112. The heat exchanger 130 is connected to the outside air bypass passage 183 of the outside air bypass cover 180, The outside air can be supplied to the room (refer to FIG. 16).

The inner air flowing through the vent 113 is supplied to the inner bypass passage 187 of the inner bypass cover 185 through the inner three-way damper 160 and the inner passage through the inner bypass passage 187, The indoor air can be discharged to the outside without passing through the heat exchanging element 130 in the form of being discharged outdoors through the indoor heat exchanger 114 (see FIG. 17).

Therefore, the heat recovery ventilator 100 having the bypass flow passage according to the sixth embodiment of the present invention is provided with a heat exchanger 100 for supplying heat to the outside heat exchanger 100 for supplying the outside air to the room without passing through the heat exchanging element 130, The bypass passage 183 and the internal bypass passage 187 for discharging the inside air to the outside without passing through the heat exchange element 130 can be easily configured.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And all changes and modifications to the scope of the invention.

100: Heat recovery ventilation device 110: Body case
111: external mechanism 111a: outside space
112: Supply mechanism 112a: Supply space
113: ventilation hole 113a: ventilation space
114: exhaust port 114a: exhaust space
115: outside air communication hole 116:
117: ventilation communication hole 118: exhaust communication hole
121: blowing blower 123: outdoor blower
130: Heat exchange element 135: Filter
140: Connector 150: Outdoor three-way damper
151: first suction port 152: first discharge port
153: second outlet 155: first door
160: Bicycle three-way damper 161: Second intake port
162: third outlet 163: fourth outlet
165: second door 170: bypass cover
171,183: Open air bypass flow 173,187: Open air bypass flow
175: Flow guide 176: Guide plate
177: upper side film portion 178: lower side film portion
179: Seal member 180: Outdoor air bypass cover
181: first communication hole 185: bypass bypass cover
186: Second communicating port

Claims (9)

A main body case 110 having an exhaust port 114 and an external mechanism 111 formed on one side surface and having a ventilation hole 113 and an air supply mechanism 112 formed on the other side thereof, A heat exchanging element 130 for exchanging heat between the outside air sucked in the outside air and the inside air sucked into the vent 113, and blowers 121 and 123 for forcibly flowing the outside air and the inside air. In the heat recovery ventilator 100,
The main body case 110 includes an outer air communication hole 115 formed through an outer air space 111a communicating with the outer mechanism 111 and an air supply space 112a communicating with the air supply mechanism 112, (112), and a feed-through hole (116)
A bypass cover 170 for covering the outside of the main body case 110 and forming outside air bypass flow path 171 so that outside air sucked through the outside air communication hole 115 is directly supplied to the fresh air supply hole 116, , And
A second discharge port 153 installed in the outer mechanism 111 for discharging the outside air, a second discharge port 153 for sending outside air sucked by the first suction port 151 to the outside air communication hole 115, A first outlet 152 for sending the outside air sucked into the first inlet 151 to the heat exchanger 130 and a second outlet 152 for discharging the outside air from the first inlet 151, Directional damper (150) including a first door (155) that selectively closes any one of the first door (155) and the second door (155). The method according to claim 1,
The main body case 110 is formed by passing through a ventilation communication hole 117 formed through a ventilation space 113a communicating with the ventilation hole 113 and an exhaust space 114a communicating with the ventilation hole 114 And an exhaust communication hole (118)
The bypass bypass flow path 173 and the outside air bypass flow path 171 are partitioned so that the inner air sucked into the ventilation communication hole 117 is directly supplied to the exhaust communication hole 118, A flow guide 175 installed, and
A second suction port 161 installed in the vent 113 and sucking the inside air; a fourth vent 163 for sending the inside air sucked into the second suction port 161 to the ventilation communication hole 117; A third outlet 162 for sending the inside air sucked into the second inlet 161 to the heat exchanging element 130 and a second outlet 162 for discharging the inside air out of the second inlet 161, the third outlet 162 and the fourth outlet 163 Direction damper (160) including a second door (165) that selectively seals one of the first door (165) and the second door (165). 3. The method of claim 2,
The flow guide 175
A guide plate portion 176 for vertically dividing the outside air bypass passage 171 and the inside-air bypass passage 173,
An upper side wall portion 177 protruding upward from both side ends of the guide plate portion 176,
And a lower side wall part (178) protruding downward from both side ends of the side surface different from the upper side surface part (177). A main body case 110 having an exhaust port 114 and an external mechanism 111 formed on one side surface and having a ventilation hole 113 and an air supply mechanism 112 formed on the other side thereof, A heat exchanging element 130 for exchanging heat between the outside air sucked in the outside air and the inside air sucked into the vent 113, and blowers 121 and 123 for forcibly flowing the outside air and the inside air. In the heat recovery ventilator 100,
The main body case 110 is formed by passing through a ventilation communication hole 117 formed through a ventilation space 113a communicating with the ventilation hole 113 and an exhaust space 114a communicating with the ventilation hole 114 And an exhaust communication hole (118)
A bypass cover 170 for forming an internal bypass passage 173 so that the internal air sucked into the ventilation communication hole 117 is directly supplied to the exhaust communication hole 118,
A second suction port 161 installed in the vent 113 and sucking the inside air; a fourth vent 163 for sending the inside air sucked into the second suction port 161 to the ventilation communication hole 117; A third outlet 162 for sending the inside air sucked into the second inlet 161 to the heat exchanging element 130 and a second outlet 162 for discharging the inside air out of the second inlet 161, the third outlet 162 and the fourth outlet 163 Direction damper (160) including a second door (165) that selectively seals one of the first door (165) and the second door (165). delete A main body case 110 having an exhaust port 114 and an external mechanism 111 formed on one side surface and having a ventilation hole 113 and an air supply mechanism 112 formed on the other side thereof, A heat exchanging element 130 for exchanging heat between the outside air sucked in the outside air and the inside air sucked into the vent 113, and blowers 121 and 123 for forcibly flowing the outside air and the inside air. In the heat recovery ventilator 100,
The main body case 110 includes a feed opening 116 formed through an air supply space 112a communicated with the feed mechanism 112,
A first suction port 151 installed in the external mechanism 111 and sucking the outside air, a first discharge port 152 coupled to the external mechanism 111, and an air sucked into the first suction port 151 And a first door 155 for selectively sealing one of the first suction port 151, the first discharge port 152, and the second discharge port 153 An outside air three-way damper 150, and
A first communication hole 181 connected to the second outlet 153 of the outside air three-way damper 150 and a second communication hole 183 covering the main body case 110 and passing through the first communication hole 181, And an outer air bypass cover (180) for forming an outer air bypass passage (183) provided to the supply air hole (116). The method according to claim 6,
The main body case 110 includes an exhaust communication hole 118 formed through an exhaust space 114a communicated with the exhaust hole 114,
A second suction port 161 installed at the vent 113 for sucking the vent, a third vent 162 coupled to the vent, and a second vent 162 for discharging the inside air sucked into the second suction port 161 to the outside. And a second door (165) for selectively sealing one of the second suction port (161), the third discharge port (162), and the fourth discharge port (163) (160), and
A second communication hole 186 connected to the fourth outlet 163 of the inner three-way damper 160, a second communication hole 186 covering the main body case 110 and passing through the second communication hole 186, And an inner bypass cover (185) for forming an inner bypass flow passage (187) provided in the communication hole (118). A main body case 110 having an exhaust port 114 and an external mechanism 111 formed on one side surface and having a ventilation hole 113 and an air supply mechanism 112 formed on the other side thereof, A heat exchanging element 130 for exchanging heat between the outside air sucked in the outside air and the inside air sucked into the vent 113, and blowers 121 and 123 for forcibly flowing the outside air and the inside air. In the heat recovery ventilator 100,
The main body case 110 includes an exhaust communication hole 118 formed through an exhaust space 114a communicated with the exhaust hole 114,
A second suction port 161 installed at the vent 113 for sucking the inside air, a third vent 162 coupled to the vent 113, and a second suction port coupled to the second suction port 161, And a second door 165 that selectively closes any one of the fourth suction port 163 and the second suction port 161, the third discharge port 162, and the fourth discharge port 163, Three-way damper 160, and
A second communication hole 186 connected to the fourth outlet 163 of the inner three-way damper 160, a second communication hole 186 covering the main body case 110 and passing through the second communication hole 186, And an inner bypass cover (185) for forming an inner bypass flow passage (187) provided in the communication hole (118). delete
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KR20170134284A (en) * 2017-11-03 2017-12-06 주식회사 티아이씨 A ventilator for waste heat recovery
KR101824145B1 (en) * 2016-02-15 2018-01-31 주식회사 경동나비엔 Ventilator
KR20180014122A (en) * 2016-03-03 2018-02-07 주식회사 경동나비엔 Ventilator
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KR20180123367A (en) * 2017-05-08 2018-11-16 (주)유원기술 Heat Exchanger
KR102115135B1 (en) * 2020-04-07 2020-06-05 조상용 rapid cooling unit
KR102159464B1 (en) 2020-02-03 2020-09-23 김진호 Heat recovery filtration unit
KR102242500B1 (en) * 2020-05-15 2021-04-21 양세연 Heat Recovery Ventilation
KR102246320B1 (en) * 2019-12-23 2021-04-29 한국건설기술연구원 Air conditioning system
KR102291184B1 (en) 2021-02-19 2021-08-18 한경대학교 산학협력단 High-efficient thermal recovery ventilation system with improved ultrafine dust removal efficiency and air distribution function
KR20210119105A (en) * 2020-03-24 2021-10-05 주식회사 힘펠 Bypass heat exchanger
KR20210125307A (en) * 2020-04-08 2021-10-18 엘지전자 주식회사 Ventilation System
KR102314183B1 (en) * 2020-05-18 2021-10-18 은성화학(주) All-in-one heat exchange ventilator that allows air cooling bypass and dehumidification and air cleaning
KR102348384B1 (en) * 2021-06-18 2022-01-10 민찬기 Total heat exchanger with bypass function to reduce damage in case of fire
KR102422062B1 (en) * 2021-10-15 2022-07-21 주식회사 힘펠 Heat recovery ventilator

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KR101824145B1 (en) * 2016-02-15 2018-01-31 주식회사 경동나비엔 Ventilator
KR20180014122A (en) * 2016-03-03 2018-02-07 주식회사 경동나비엔 Ventilator
KR102287901B1 (en) * 2016-03-03 2021-08-09 주식회사 경동나비엔 Ventilator
KR101839598B1 (en) 2016-10-28 2018-03-16 은성화학(주) a heat exchanger ventilator and a control method of the same
KR20180123367A (en) * 2017-05-08 2018-11-16 (주)유원기술 Heat Exchanger
KR101931196B1 (en) * 2017-05-08 2019-03-13 (주)유원기술 Heat Exchanger
KR20170134284A (en) * 2017-11-03 2017-12-06 주식회사 티아이씨 A ventilator for waste heat recovery
KR101895355B1 (en) * 2017-11-03 2018-09-05 주식회사 티아이씨 A ventilator for waste heat recovery
KR102246320B1 (en) * 2019-12-23 2021-04-29 한국건설기술연구원 Air conditioning system
KR102159464B1 (en) 2020-02-03 2020-09-23 김진호 Heat recovery filtration unit
KR20210119105A (en) * 2020-03-24 2021-10-05 주식회사 힘펠 Bypass heat exchanger
KR102462942B1 (en) 2020-03-24 2022-11-04 주식회사 힘펠 Bypass heat exchanger
KR102115135B1 (en) * 2020-04-07 2020-06-05 조상용 rapid cooling unit
KR20210125307A (en) * 2020-04-08 2021-10-18 엘지전자 주식회사 Ventilation System
KR102332412B1 (en) * 2020-04-08 2021-11-26 엘지전자 주식회사 Ventilation System
KR102242500B1 (en) * 2020-05-15 2021-04-21 양세연 Heat Recovery Ventilation
KR102314183B1 (en) * 2020-05-18 2021-10-18 은성화학(주) All-in-one heat exchange ventilator that allows air cooling bypass and dehumidification and air cleaning
KR102291184B1 (en) 2021-02-19 2021-08-18 한경대학교 산학협력단 High-efficient thermal recovery ventilation system with improved ultrafine dust removal efficiency and air distribution function
KR102348384B1 (en) * 2021-06-18 2022-01-10 민찬기 Total heat exchanger with bypass function to reduce damage in case of fire
KR102422062B1 (en) * 2021-10-15 2022-07-21 주식회사 힘펠 Heat recovery ventilator

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