KR20080109960A - A twin type heat exchanger - Google Patents

Abstract

A twin type heat exchanger in a multi-stepped dual structure is provided to reduce entire size and improve heat exchange efficiency by mounting heat exchange elements at both sides symmetrically. A body part is in the rectangular parallelepiped shape with upper and lower panels(1,2), both side panels(3,4) and front and rear panels(5). A traverse plate(8) defines the inside of the body part into upper and lower spaces. Two longitudinal plates define each of the upper and lower spaces into three cells. Air supply fans(13,14) are mounted in the cells for supplying fresh atmospheric air. An exhaust fan(15) is mounted in the cell for discharging polluted room air to the outside. First and second heat exchanger(16,17) carry out heat exchange between the supplied atmospheric air and the discharged room air.

Description

Twin type heat exchanger {A Twin Type Heat Exchanger}

1 is a perspective view from the front of the total heat exchanger according to the present invention.

Figure 2 is a perspective view of the back of the total heat exchanger according to the present invention.

Figure 3 is an exploded perspective view of the total heat exchanger according to the present invention.

Figure 4 is a cross-sectional view of the total heat exchanger according to the present invention.

5 is a schematic view showing a state of a conventional total heat exchanger.

Figure 6 is a schematic diagram showing the principle of the total heat exchange element used in the total heat exchanger.

<Code Description of Main Parts of Drawing>

1: Upper panel 2: Lower panel 3, 4: Side panel 5: Front panel 6: Rear panel

7: Heat exchanger body 8: Horizontal plate 9, 10, 11, 12: Vertical plate 13, 14: Air supply fan

15: exhaust fan 16: first heat exchange element 17: second heat exchange element 18, 19: indoor air exhaust

20, 21: outdoor air supply mechanism 22: air vent 23: intake vent 24: reinforcing plate

30: electrothermal exchange device 31: electrothermal exchange element 32: indoor supply mechanism 33: outdoor supply mechanism

34: indoor exhaust pipe 35: outdoor exhaust pipe 36: heat exchanger body 37: cardboard

38: wrinkle hole 40: twin type multistage double heat exchanger

The present invention relates to an air conditioner that supplies polluted or turbid air inside a building where a large number of people live or conduct collective education to the outside, and supplies fresh air to the outside, and in particular, a large number of students collectively live together. Installed in school classrooms to quickly ventilate indoor polluted or cloudy air, while partially recovering and reusing internally released heat energy that escapes from the outside, keeping the indoor air pleasant and reducing heat loss. A twin type multistage double heat exchanger that can be improved.

In general, the most basic way of life is to introduce and use air-conditioning systems to cope with heat or cold in apartments, officetels, or classrooms where many people are gathered and educated. Through this basic way of life, long-term life can be affected by people's health due to the smell of cooking food or the environmental pollutants generated from cloudy air, indoor interior and furniture, etc. Many adverse effects will occur.

Therefore, to solve the above problems, by opening the window for a long time to ventilate to change the indoor air with fresh outside air. However, when opening the window and ventilating, yellow dust or dust often enters the room by the wind and has an adverse effect. In the season when the heating and cooling are operated, the energy of indoor heating and cooling is drained to the outside and economically much. It will cause a loss.

Therefore, in order to solve the conventional problems, a device that ventilates the internal air without opening the window of the room has been developed and used. Also, the indoor air is simply drawn out using the air supply fan and the exhaust fan (exhaust) and the external air is exhausted. The system is very efficient at ventilating muddy air and smells in the room because it is an intake (air supply) system.

However, in recent years, a device has been developed and widely used to recover some of the lost heat energy (hereinafter referred to as waste heat) and return it to the room.

Such a conventional total heat exchange device 30 is composed of a total heat exchange element 31 having a heat exchange function and a ventilator body 36 incorporating the heat exchange element 31 as shown in FIG. In addition, the ventilator body (36) has an indoor air supply (32) for supplying fresh air to the inside of a building, such as a classroom where people gather and work, and an indoor exhaust pipe (34) for emitting polluted air in the room. On the contrary, the outdoor air supply unit 33 for forcibly supplying fresh air (outside air) to the outside wall of the building and the outdoor exhaust pipe 35 for sending polluted air of the room to the outside are provided. It is provided.

Here, the electrothermal exchange element 31 is a known technique, which will be described in more detail. As shown in FIG. 6, a layered layer is fixed by stacking up several layers of corrugated cardboard 37 formed with a crease hole 38. What is necessary is just to stack | stack one by one at 90 degree angles mutually, and provide them as needed as shown in FIG.

The electrothermal exchange element 31 configured as described above will be described by taking an example in which a cooling system is operated on cloudy air in a classroom having a large number of summer students. That is, the clouded, moist, and contaminated indoor air is exhausted in the direction of the outdoor "D" through the "multi" direction, which is indoors in FIG. 6, wherein the contaminated air is gathered in the electrothermal exchange element 31. As the air passes through the hole 38, the indoor turbid air (including cold air) flows out, and at the same time, the fresh air (hot air) flows in from the "ga" direction to the "na" direction of the room, so that the interior of the classroom In the inside of the heat exchange element 31, the cold indoor air is exhausted to the outside through the corrugation hole 38 formed in the corrugated cardboard 37 of the odd layer, while the hot outside of the even layer is replaced with fresh air. Air enters the room through the corrugation hole 38. Here, the cold air in the room passes through the heat exchange element 31 and more specifically, passes through the crease hole 38 of the odd layer, and is positioned above and below the crease hole 38 of the even layer into which the hot air is introduced. Heat transfer is achieved.

Therefore, as the cool air in the room escapes, some energy is transferred from the inside of the total heat exchange element 31 to the hot air supplied from the outside, and then flows back into the room. This allows the electrothermal heat exchange element 31 to recover some of the energy (waste heat) wasted during ventilation can be used to improve the thermal efficiency, as well as to significantly reduce the cost required for heating and cooling. Therefore, the general heat exchanger is to use the electrothermal exchange element 31 essentially.

As described above, the conventional total heat exchanger 30 will be described with reference to the case of summer. If a large number of students operate the air conditioner in a hot and humid classroom for a long time, the indoor air gradually cools down as a certain time passes. At this time, when the electrothermal heat exchanger 30 is operated as shown in FIG. 5, the indoor turbid air passes through the electrothermal heat exchange element 31 through the indoor heat exchanger 34, and then through the outdoor air discharger 35. Will exit to the outside.

At the same time, external fresh air is introduced into the room through the indoor air supply device 32 through the electrothermal exchange element 31 through the outdoor air supply device 33. At this time, as the heat exchange is performed in the heat exchange element 31 provided in the heat exchange device 30, a considerable amount of cold air (waste heat) lost to the outside is recovered and sent into the room. Of course, as the heat exchange is carried out as described above, moisture or dust is also filtered out by the electrothermal exchange element 31.

However, in the conventional heat exchanger device 30 having the above function, the size of the heat exchanger element 31 provided therein is excessively large while the function is concentrated in the center portion, so that both sides except the center portion are formed. Has almost no function, so the utilization efficiency is considerably reduced, and the production and installation costs are high, resulting in unnecessary waste.

Accordingly, the present invention has been made to solve the above problems, while significantly reducing the size of the total heat exchange element provided in the total heat exchange device, and symmetrically installed on both sides to significantly improve the heat exchange efficiency The aim is to provide a twin multistage double heat exchanger that can significantly reduce manufacturing installation costs.

Twin-stage two-stage double heat exchanger 40 of the present invention for achieving the above object, as shown in Figures 1 to 4, the upper panel 1 and the lower panel (2), both panels (3) 4, a rectangular parallelepiped electrothermal heat exchanger body (7) consisting of six panels of the front panel (5) and the back panel (6), and the inside of the body (7) as the upper space (A) and the lower space (B). A horizontal plate 8 installed to be partitioned, two vertical plates 9 and 10 arranged to partition the upper space A into three narrow spaces AA, AB, and AC, respectively, Two vertical plates 11 and 12 installed to divide the lower space B into three narrow spaces (BA, BB, BC, hereinafter referred to as cells), and to supply fresh air to the room. Air supply fans 13 and 14 installed in each of the cells AA and AC, and exhaust installed in the cell AB to take out contaminated and turbid air in the room Is composed of 15 and, at the same time of the indoor air from escaping to the outside outdoor air is installed so that the heat conducted to the room as the inlet and second total heat-exchanging element (16, 17).

In addition, as shown in FIG. 3, the front panel 5 is provided with indoor air exhaust ports 18 and 19 through which indoor air can enter the cells BA and BC. 1) is provided with an outdoor air supply port (20, 21) to allow the outside air to flow into the room by the air supply fan (13, 14) installed in each cell (AA, AC), the rear panel (6) is provided with a blower port 22 for sending indoor air to the outside and a suction port 23 for introducing outdoor air into the room.

In addition, the first heat exchange element 16 allows the polluted indoor air introduced into the cell BA to the cell AB, and at the same time, the outside air introduced into the cell BB is the cell AA. It is installed at the boundary of each cell (AA, AB, BA, BB) so that it can be supplied to the cell, the second heat exchange element 17 receives the contaminated air in the room introduced into the cell (BC) the cell (AB) ) And at the same time it is installed on the boundary of each cell (AB, AC, BB, BC) so that the outside air introduced into the cell (BB) can be supplied to the cell (AC).

In addition, a reinforcement plate 24 is installed between the cell AB and the front panel 5 to further maintain the airtightness between the outdoor air and the indoor air.

Twin type multi-stage dual heat exchanger 40 of the present invention having the above configuration can be installed in an apartment or an officetel, but is usually installed and used in a place such as a school classroom where a large number of people gather and live. Therefore, the twin multi-stage dual heat exchanger 40 is installed on the floor of the school classroom, but preferably installed in a space such as directly below the classroom window, but may be installed and used according to the conditions of each installation place.

Hereinafter, the installation and operation method of the twin-stage multi-stage double heat exchanger 40 will be described in detail. First, a hole communicating with the blower port 22 and the suction port 23 provided in the rear panel 6 of the twin-stage multi-stage dual heat exchanger 40 is formed in the outer wall of a classroom such as a classroom, and the blower hole is formed in these holes. The twin type multistage double heat exchanger (40) is installed so that 22) and the suction port (23) fit together. In addition, when the outdoor air is hot in the summer described as an operation method, as shown in Figures 3 and 4, when the cooling state in the classroom first elapses for a certain time, indoor air is moist and polluted due to a large number of people in the room. At this time, when the twin type multi-stage dual heat exchanger 40 is turned on, the air supply fans 13 and 14 and the exhaust fan 15 provided in the cells AA, AB, and AC are operated. Then, the clouded air in the room enters the cells BA and BC through the indoor air vents 18 and 19 provided in the front panel 5 with the suction force of the exhaust fan 15, and then on both sides. After the first and second electrothermal exchange elements 16 and 17 are installed, the cell AB is introduced into the cell AB, and then the outdoor outlet is passed through the air vent 22.

At the same time, outdoor fresh air is introduced into the cell BB through the suction port 23 by suction power of the air supply fans 13 and 14 provided in each of the cells AA and AC, and then provided at both sides. The upper panel 1 is provided by the blowing force of the air supply fans 13 and 14 while flowing into the respective cells AA and AC through the first and second electrothermal exchange elements 16 and 17, respectively. Through the outdoor air supply mechanism (20, 21) is to enter the interior of the classroom. That is, through each of the first and second heat exchange elements 16 and 17, the air contaminated in the room and the wet and cold air flow out to the outside through the air vent 22 provided in the cell AB, and the suction port ( 23, the fresh, hot air from outside passes through each of the first and second electrothermal exchange elements 16 and 17 and enters the room through the respective cells AB and AC. At this time, the cold air (energy) of the room is discharged to the outside from the first and second electrothermal heat exchange elements (16,17) and the outdoor hot air is made to enter the room at the same time, the energy of the cold air to escape to the indoor Heat transfer (energy transfer) is performed by the hot air coming into the room, and the hot air actually introduced into the room is significantly lowered in temperature while passing through the first and second heat exchange elements 16 and 17. Therefore, when the actual outdoor hot air enters the indoor air, the cold air energy lost to the outdoor will be able to recover a large portion.

Of course, in winter it will work as the opposite function. In other words, when the warmth of the indoor air escapes during the internal air ventilation, a large portion of it can be recovered.

As described above, the twin type multi-stage double heat exchanger 40 of the present invention is configured to be symmetrically installed on both sides of the heat exchange elements 16 and 17, thereby significantly reducing its size compared to a conventional heat exchange element. In addition, the production cost is significantly reduced, and the energy recovery efficiency is also improved.

Claims (3)

In the total heat exchanger that allows to recover the loss energy (waste heat) of the room while letting the indoor cloudy air to the outside while introducing fresh air into the room, The heat exchanger body (7) of the rectangular parallelepiped of the upper panel (1) and the lower panel (2), the side panels (3, 4), the front panel (5) and the rear panel (6), A horizontal plate 8 installed to partition the interior of the body 7 into an upper space A and a lower space B; Vertical plates 9 and 10 installed to partition the upper space A into cells AA, AB, and AC; Vertical plates 11 and 12 installed to partition the lower space B into cells BA, BB, and BC; Air supply fans 13 and 14 installed in the cells AA and AC, An exhaust fan 15 installed in the cell AB, It is composed of the first and second heat exchange elements (16, 17) installed at the boundary of each cell so that the indoor air escapes to the outdoors and at the same time the outdoor air flows into the indoor heat exchange is performed, Indoor air exhaust ports 18 and 19 provided on the front panel 5 to allow indoor air to escape into the cells BA and BC, An outdoor air air supply port 20 or 21 provided to allow the outside air to flow into the room by the air supply fans 13 and 14 installed in the cells AA and AC on the upper panel 1; Twin-stage multi-stage double heat exchanger, characterized in that the rear panel (6) comprises an air inlet (22) for sending indoor air to the outside and the inlet (23) for introducing outdoor air into the room. According to claim 1, wherein the first heat exchange element 16 allows the polluted indoor air introduced into the cell (BA) to send to the cell (AB) and at the same time the outside air introduced into the cell (BB) It is installed at the boundary of each cell (AA, AB, BA, BB) to be supplied to the cell (AA), The second electrothermal heat exchange element 17 allows indoor polluted air introduced into the cell BC to be sent to the cell AB, and at the same time, outside air introduced into the cell BB flows into the cell AC. Twin-stage multi-stage double heat exchanger is installed in the boundary of each cell (AB, AC, BB, BC) so as to be supplied to the symmetrical structure. The twin-type multistage double heat exchanger according to claim 2, wherein said cell (AB) is provided with a reinforcing plate (24) for reinforcing airtightness of indoor air.

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