KR102087717B1 - Air conditioning system using hydrophilic coating indirect evaporator - Google Patents

Abstract

The present invention provides an air conditioning system using a hydrophilic coated indirect evaporator, which can control temperature of supply air by indirect heat exchange between outdoor air and ventilation air using the hydrophilic coated indirect evaporator, and can cool the supply air with latent heat of vaporization of water by spraying the water to the indirect evaporator. Accordingly, the air conditioning system is eco-friendly compared to the prior art, and energy for cooling the supply air can be saved. Moreover, a surface area which gets wet is widened as a surface of the indirect evaporator is hydrophilic coated to accelerate evaporation of the water so as to increase efficiency of the system in accordance with increase in evaporation efficiency, and the indirect evaporator can be selectively cleaned to increase heat exchange performance. In addition, an insulation material support is provided to increase durability of a wall body of a housing, and a heat bridge phenomenon is reduced to increase insulation performance.

Description

Air conditioning system using hydrophilic coating indirect evaporator

The present invention relates to an air conditioning system using a hydrophilic coated indirect evaporator, and more particularly, to control the temperature of the air supply by indirect heat exchange of air and ventilation using a hydrophilic coated indirect evaporator, by injecting water into the indirect evaporator The present invention relates to an air conditioning system using a hydrophilic coating indirect evaporator, which is more environmentally friendly than the prior art and thus saves energy for cooling the air supply.

In general, most houses, especially buildings such as apartments, buildings, etc. are equipped with a cooling device and a heating device to provide a comfortable and harmonious air indoors. In particular, air-conditioning systems capable of performing cooling and heating as well as ventilation are installed in buildings with closed windows, such as residential buildings or buildings.

As an example of such an air conditioning system, the ventilation system of Korean Patent Laid-Open Publication No. 2005-0010571 includes an air inlet formed on one side of a main body case and a blower fan connected to a housing to forcibly blow air sucked from the air inlet; And an exhaust port through which the air blown by the blower fan is ejected, and a precooling unit for exchanging heat and ventilation with each other.

However, the conventional air conditioning system causes problems such as deterioration of indoor air quality due to fine dust and harmful gases as outdoor air flows into the room.

In addition, the conventional air conditioning system has a structure that can not effectively cope with each case of winter and summer, there is a problem not only cumbersome, but also economical because it has to provide a different air conditioner according to each season.

The present invention controls the temperature of the air supply by indirect heat exchange of air and ventilation using a hydrophilic coated indirect evaporator, but by spraying water to the indirect evaporator to cool the air supply by the latent heat of evaporation of water, it is more environmentally friendly than the prior art, As energy for cooling is saved, and the surface of the indirect evaporator is hydrophilic coated, the surface area wetted with water is widened to promote vaporization of the water, thereby increasing the efficiency of the system according to the increased vaporization efficiency, and also selectively washing the indirect evaporator. It is possible to provide an air conditioning system using a hydrophilic coating indirect evaporator which can improve heat exchange performance, and is provided with a heat insulating material support to improve the durability of the wall of the housing, as well as to reduce thermal crosslinking, thereby improving heat insulating performance. The purpose.

An air conditioning system using a hydrophilic coating indirect evaporator according to the present invention is an indoor air inlet to which outside air is introduced, a ventilation inlet to which ventilation is introduced, and an interior of the outside air or ventilation introduced from the outside air inlet or the ventilation inlet to the room. A discharge port and an outlet for discharging the ventilation introduced from the ventilation inlet to the outside, respectively, and an intake passage for guiding the outside air introduced from the outside air inlet to the indoor outlet, and the ventilation inlet from the ventilation inlet. It is provided on the housing is formed with an exhaust flow path to guide to the exhaust passage and the intake flow passage, the surface is hydrophilic coating, the indirect evaporator for indirect heat exchange between the outside air and ventilation, and is provided on one side of the indirect evaporator, A water supply nozzle for selectively injecting water into the indirect evaporator and water with the water supply nozzle A heat exchanger cleaning unit connected to a water supply line for supplying, selectively supplying a cleaning liquid to a water supply line according to the operation of the water supply nozzle, sprayed with the indirect evaporator together with water to clean the indirect evaporator, and the ventilation or A bypass flow path for bypassing the indirect evaporator to supply or discharge the inside to the room, a first blower fan provided on the intake flow path to forcibly attract the outside air to the interior, and provided on the exhaust flow path. A blowing unit including a second blowing fan for forcibly discharging the ventilation, a damper unit provided in each of the intake passage, the exhaust passage, and the bypass passage to selectively control the flow of the ventilation or outside air; Electrically connected to the damper unit and the heat exchanger cleaning means, the control of the damper unit selectively according to the temperature and humidity of the outside air A control unit for controlling the driving of the heat exchanger cleaning means, while controlling the flow of the outside air or ventilation, the housing comprises a plurality of frames forming a frame, a plurality of connectors for connecting the ends of the frames with each other; And a heat insulation wall coupled to the frame forming a wall, wherein the heat insulation wall has a wall case having an accommodation space formed therein by a combination of an inner member located inside and an outer member located outside, and the wall. A plurality of heat insulators which are continuously received along the receiving space of the case and insulate the outside and the inside, and are provided between the heat insulators, while supporting the inner member and the outer member of the wall case while thermally crosslinking the inside and the outside. It includes support to prevent the phenomenon.

The bypass passage according to the present invention bypasses the indirect evaporator with the ventilation introduced from the ventilation inlet to the indoor outlet, and the indirect evaporator directs the ventilation introduced from the ventilation inlet. And a second bypass passage to bypass the indirect evaporator to guide the outside air introduced from the outside air inlet to the indoor outlet.

In addition, the damper unit according to the present invention is provided on the outside air inlet side to selectively control the inflow of the outside air, and is provided on the intake passage on the ventilation inlet side to selectively control the inflow of the ventilation A ventilation damper, an exhaust damper provided at the outlet side to selectively control the outflow of the ventilation, and a first damping passage provided at the first inlet passage at the ventilation inlet side to selectively control the bypass of the ventilation. A first bypass damper, a second bypass damper provided on the second bypass passage on the outlet side to selectively control the bypass of the ventilation, and on the third bypass passage on the outside air inlet side. It is provided includes a third bypass damper for selectively controlling the inflow of the bypass air.

At this time, the air conditioning system using a hydrophilic coating indirect evaporator according to the present invention further includes a heating unit which is provided on the intake passage, the heating unit for supplying the air to the room by the control unit.

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In this case, the housing according to the present invention is formed with a single insulation line, the insulation may be made of a plurality of layers.

And the control unit according to the present invention, in the ventilation circulation mode of the winter season, by closing the ventilation damper and the exhaust damper to block the ventilation is discharged to the outside, blocking the outside air damper to block the inflow of outside air The first bypass damper is opened to allow the ventilation to flow into the room through the first bypass flow path, and the heating unit is driven to heat the ventilation to resupply the room.

In addition, when the control unit according to the present invention is in the circulation mode in the summer, the second bypass damper and the third bypass damper are closed so that the ventilation and the outside air bypass the indirect evaporator and flow out. And the ventilation damper and the external air damper are opened to allow the outside air and the ventilation to be introduced and discharged through the indirect evaporator, thereby cooling the outside air using a relatively low temperature ventilation and supplying it to the room.

The control unit according to the present invention, in the circulation mode of the winter season, closes the second bypass damper and the third bypass damper so that the ventilation and the outside air bypass the indirect evaporator and flow out. Shut off, open the ventilation damper and the external air damper to allow the outside air and the ventilation to be introduced and discharged through the indirect evaporator, and heat the outside air using a relatively high temperature ventilation, and then drive the heating unit. The outside air is heated to supply the room.

In this case, the control unit according to the present invention partially opens the first bypass damper so that the ventilation flows into the room through the first bypass passage.

In addition, when the control unit according to the present invention is in the ventilation mode, the ventilation damper and the exhaust damper are opened so that outside air is supplied to the room through the indirect evaporator, and the ventilation damper and the external air damper are opened to ventilate. Is discharged to the outside via the indirect evaporator, and the second bypass damper and the third bypass damper are partially opened so that a part of the ventilation and outside air bypasses the indirect evaporator and enters the interior and is discharged to the outside. To be.

When the control unit according to the present invention is in the overheating mode in summer, the ventilation damper, the exhaust damper and the second bypass damper are opened, and the first bypass damper is closed so that the ventilation bypasses the indirect evaporator. It is discharged to the outside, the outside air damper is closed and the third bypass damper is opened so that outside air flows into the room bypassing the indirect evaporator.

In addition, the control unit according to the present invention is that in the summer insulation mode, the second bypass damper, and the third bypass damper to close the ventilation and the outside air to bypass the indirect evaporator to flow out and inflow Blocking and opening the ventilation damper and the outside air damper to allow the outside air and the ventilation to be introduced and discharged through the indirect evaporator, and to drive the water supply nozzle to cool the outside air passing through to enter the room.

Effects of the air conditioning system using a hydrophilic coating indirect evaporator according to the present invention are as follows.

While controlling the temperature of the air supply by indirect heat exchange between the outside air and ventilation using a hydrophilic coated indirect evaporator, by spraying water to the indirect evaporator to cool the air supply by the latent heat of evaporation of water, it is more environmentally friendly than the prior art, for cooling the air supply As energy is saved, and the surface of the indirect evaporator is hydrophilic coated, the surface area wetted with water is widened to promote vaporization of water, thereby increasing the efficiency of the system due to increased vaporization efficiency.

In addition, by selectively washing the indirect evaporator, the heat exchange performance can be improved, and a heat insulating material support is provided to improve the durability of the wall of the housing as well as to reduce the thermal crosslinking phenomenon, thereby improving the heat insulating performance.

1 is an exemplary view showing an air conditioning system using a hydrophilic coating indirect evaporator according to an embodiment of the present invention.
Figure 2 is an exemplary view showing a corner bar of the frame of the air conditioning system using a hydrophilic coating indirect evaporator according to an embodiment of the present invention.
3 is an exemplary view showing a middle bar of the frame of the air conditioning system using a hydrophilic coating indirect evaporator according to an embodiment of the present invention.
Figure 4 is an exemplary view showing an embodiment of the heat insulation wall according to an embodiment of the present invention.
Figure 5 is an exemplary view showing a state in which the heat insulation is formed in a single line on the heat insulating wall according to an embodiment of the present invention.
6 is an exemplary view showing a state in which a plurality of layers of heat insulation holes in the heat insulation wall according to an embodiment of the present invention.
7 is an exemplary view showing a hydrophilic coating indirect evaporator according to an embodiment of the present invention.
8 is an exemplary view showing an embodiment of a water supply nozzle according to an embodiment of the present invention.
9 is an exemplary view showing an embodiment of a heat exchanger cleaning unit according to an embodiment of the present invention.
10 is a block diagram illustrating a control flow according to a control unit of an air conditioning system using a hydrophilic coating indirect evaporator according to an embodiment of the present invention.
11 is a cross-sectional view showing the flow of air in the ventilation circulation mode by the control of the control unit according to an embodiment of the present invention.
12 is a cross-sectional view showing the flow of air in the circulation mode by the control of the control unit according to an embodiment of the present invention.
13 is a cross-sectional view showing the flow of air in the ventilation mode by the control of the control unit according to an embodiment of the present invention.
14 is a cross-sectional view showing the flow of air in the overheat mode by the control of the control unit according to an embodiment of the present invention.
15 is a cross-sectional view showing the flow of air in the insulation mode by the control of the control unit according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the present specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in the specification and the configuration shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all of the technical idea of the present invention, these are equivalent to replaceable at the time of the present application It should be understood that there may be variations.

The present invention controls the temperature of the air supply by indirect heat exchange of air and ventilation using a hydrophilic coated indirect evaporator, but by spraying water to the indirect evaporator to cool the air supply by the latent heat of evaporation of water, it is more environmentally friendly than the prior art, As energy for cooling is saved, and the surface of the indirect evaporator is hydrophilic coated, the surface area wetted with water becomes wider to promote vaporization of water, thereby increasing the efficiency of the system according to the increase in vaporization efficiency. Regarding the system, it will be described in more detail with reference to the drawings.

1 to 15, first, the air conditioning system using a hydrophilic coating indirect evaporator according to an embodiment of the present invention, the housing 100, the indirect evaporator 200, and bypass passages (31, 32, 33) And a blowing unit 300, a damper unit, and a control unit 500.

The housing 100 has an outside air inlet 101 through which outside air is introduced into one side, a ventilation inlet 102 through which ventilation is introduced into the other side, and the outside air inlet 101 or the other side spaced apart from the ventilation inlet 102. It is provided with an indoor outlet 103 for discharging the outside air or ventilation introduced from the ventilation inlet 102 into the room, and an outlet 104 for discharging the ventilation introduced from the ventilation inlet 102 to the outside. Doing.

The outside air inlet 101, the ventilation inlet 102, the indoor outlet 103 and the outlet 104 of course can be changed in position depending on the design.

In addition, the housing 100 has an intake passage 10 guiding the outside air introduced from the outside air inlet 101 to the indoor outlet 103 and the ventilation introduced from the air inlet 102. Exhaust flow passages 20 are formed to guide the outlets 104 to form a structure in which outside air and ventilation are not mixed with each other. In addition, bypass passages 31, 32, and 33 described below are formed.

The housing 100 having the outside air inlet 101, the ventilation inlet 102, the indoor outlet 103, and the outlet 104 is formed of a plurality of frames 110, a plurality of connectors 120, and a plurality of thermal insulation. The wall 130 is assembled in one form, the frame 110 forms the frame of the air conditioning system, the connector 120 connects the ends of the frame 110 to each other, the insulating wall 130 They form the wall of the air conditioning system is coupled to the frame 110 forming the frame.

2 and 3, the frame 110 according to an embodiment of the present invention is the end is coupled to the connection end of the corner connection mold which is connected to the right angle and the corner of the air conditioner, the air conditioning The end is coupled to the corner bar 10 forming the outermost side of the group, and the intermediate connection mold coupled to one side of the corner bar 10, it is configured to be divided into an intermediate bar 20 forming an air conditioner.

At this time, each of the corner bar 10 and the middle bar 20 is an outer member (11, 21) located on the outer surface of the air conditioner, and the inner member (12, 22) located on the inner surface of the air conditioner And the outer members 11 and 21 and the inner members 12 and 22 by a heat interference prevention block 30 made of a material having a low thermal conductivity, so that the outer members 11 and 21 and the inner member 12 are provided. , 22) thermal interference with each other, as well as thermal insulation.

In addition, when looking at the corner bar 10 and the middle bar 20 in more detail, the outer member 11 of the corner bar 10 has a hollow cross-section having a polygonal shape to have an air layer therein, the length The cross-sectional shape described above along the direction is formed in a continuous repeat.

In addition, a pair of connecting flanges are formed to be diagonally extended to face each other so as to connect the heat interference preventing block 30 to the inner surface of the outer member 11 of the corner bar 10, and at the end of the connecting flange The coupling grooves capable of coupling the interference preventing block 30 are continuously formed along the longitudinal direction.

The inner member 20 of the corner bar 10 connected to the outer member 11 of the corner bar 10 through the heat interference prevention block 30 is spaced apart from the outer member at a predetermined distance. Preferably, the inner member 12 of the corner bar 10 is formed in a shape in which the middle portion is recessed outward so that the modular of the air conditioner is seated, the coupling formed on the outer member 11 connecting flange of the corner bar 10 By forming the coupling grooves of the same shape to face each other in the position corresponding to the groove, the heat interference prevention block 30 is coupled to the coupling groove of the outer member 11 and the coupling groove of the inner member 12, respectively The outer member 11 and the inner member 12 of the corner bar 10 are crosslinked.

At this time, the thermal interference prevention block 30 is made of any one material of low thermal conductivity of ceramic, vermiculite, synthetic resin, each of which has a specified height coupled to each other at a distance from the left and right with a pair based on the cross section. One side of the thermal interference prevention block 30 is slidingly coupled to the coupling groove of the outer member 11, the other side is slidingly coupled to the coupling groove of the inner member 12, the outer member of the corner bar 10 It is preferable to have an air layer between the 11 and the inner member 12.

Therefore, the pair of thermal interference prevention block 30 connects the left and right sides of the outer member 11 and the inner member 12 of the corner bar 10 to have a thermal interference prevention air layer therein.

In addition, each of the pair of thermal interference prevention blocks 30 may be made of different materials from ceramic, vermiculite, and synthetic resin.

For example, if the left heat interference prevention block 30 is made of a ceramic material, the right heat interference prevention block 30 may be made of a synthetic resin material.

The material of the thermal interference prevention block 30 is made of ceramic, vermiculite, and synthetic resin having a low thermal conductivity, thereby reducing the heat loss rate by blocking heat conduction between the mold located outside and the mold located inside.

In addition, the connector 120 is also preferably made of a synthetic resin having a low thermal conductivity, has a heat resistance that does not melt even at a temperature of 100 ℃, has a good strength and elasticity, impact resistance and abrasion resistance, excellent chemical resistance and electrical insulation Is made of.

The frame 110 is coupled to the mold located inside and the mold located inside to form a frame 110, wherein the mold located outside and the mold located inside the thermal interference prevention member having a relatively low thermal conductivity Are combined with each other.

The material of the thermal interference prevention member is made of ceramic, vermiculite, and synthetic resin having a low thermal conductivity, thereby reducing the heat loss rate by blocking thermal conductivity between a mold located outside and a mold located inside.

In addition, the connector 120 is also preferably made of a synthetic resin having a low thermal conductivity, has a heat resistance that does not melt even at a temperature of 100 ℃, has a good strength and elasticity, impact resistance and abrasion resistance, excellent chemical resistance and electrical insulation Is made of.

In addition, the heat insulation wall 130 includes a wall case 131, a plurality of heat insulators 132, and a support 134, wherein the wall case 131 is located in the inner member and the outside. The receiving member is formed to form a receiving space therein.

The heat insulators 132 are continuously accommodated along the receiving space of the wall case 131 to insulate the outside and the inside, and the finishing member 133 is provided at the outermost part of the wall case 131. A support 134 is provided between the heat insulators 132 to support the inner member and the outer member of the wall case 131 to prevent thermal cross-linking between the outside and the inside.

The support 134 forms a vertical side disposed between the heat insulators 132 and extends from the upper and lower ends of a pair of horizontal sides in contact with the inner member and the outer member of the wall case 131. The cross-sectional shape of the support 134 is formed in a 'Z' shape.

The horizontal side of the support 134 is bonded to the wall member 131, which is divided into an inner member and an outer member 135, the material of the bonding member is made of ethylene propylene rubber (EPDM: ethylene propylene rubber) Synthetic resin material with relatively low thermal conductivity is used.

The joining member 135 may be used when joining the inner member and the outer member of the wall case 131 and the finishing member 133.

Therefore, an inner member of the wall case 131 is provided between the inner member and the outer member of the wall case 131 by a support 134 having a cross-sectional shape of a 'Z' shape by a vertical side and a pair of horizontal sides. And while the outer member is supported at regular intervals to prevent the thermal cross-linking phenomenon between the outside and the inside, the durability of the wall case 131, as well as the effect of reducing the heat loss rate.

In addition, referring to Figure 4 and 5, the housing 100 is formed with a thermal insulation hole 140, the thermal insulation hole 140 is formed on the side of the housing 100, to accommodate the air therein Impede the flow of heat, improve heat insulation performance.

In one example, the thermal conductivity of air is 0.02514 W / m ° C., while general steel shows a difference of about 570 times at 14.4 W / m ° C., and the insulation hole 140 is disposed in the longitudinal direction of one side of the housing 100. As a result of the continuous repetition at regular intervals, to prevent heat flow conducted along the housing 100 to improve the thermal insulation performance.

The thermal insulation hole 140 is formed in the frame 110, the insulating wall 130 side, the vertical side of the support 134 of the housing 100, may interfere with the heat flow connected to the outside and the inside, The insulation hole 140 may be formed only in a single line, but is not limited thereto, and may be formed of two or more layers.

At this time, the heat insulation hole 140 is preferably arranged in a zigzag form.

In addition, leakage control between the frame 110, the connector 120, and the insulating wall 130, which are assembled to each other to form an air conditioning system, is made of a sealing material, and the sealing material is packed in a case and a door by a gasket forming spreading machine. It is foamed to the fastening space and the sealing material penetrates to the minute gap between the case, frame, door and the fixing frame to secure excellent airtightness.The sealing material is excellent in adhesiveness and there is no fear that the sealing material can be detached by the foaming process. Quality can be secured.

On the other hand, outdoor air (OA) shown in the drawing represents the outdoor air flowing into the intake passage 10, SA (Supply air) represents the air supply to the room through the housing 100, RA (Return air ) Denotes ventilation returned to the housing 100, and EA (Exhaust air) denotes exhaust exhausted through the housing 100.

In addition, the indirect evaporator 200 is provided on the exhaust passage 20 and the intake passage 10 to exchange heat between the outside air and the ventilation to serve to cool the inflow.

Looking at the indirect evaporator 200, the indirect evaporator 200 is a continuous arrangement of the first heat exchange cell provided on the exhaust flow path 20, and the second heat exchange cell provided on the intake flow path (10). In one embodiment, the first heat exchange cell cools the ventilation passage provided by the latent heat of evaporation of water supplied on the exhaust flow path 20, and water is formed on the surface of the first heat exchange cell so that the water evaporates. The outdoor air passing through the first heat exchange cell is cooled by latent heat of evaporation.

On the other hand, the indirect evaporator 200 is provided with a water supply nozzle 250 for injecting the water to the first heat exchange cell, the water supply nozzle 250 is uniformly spraying water on the surface of the first heat exchange cell If it can be applied to both spray injection device, etc., both manual or automatic depending on the conditions of use is, of course.

In this case, referring to FIG. 8, the water supply nozzle 250 sprays water in the form of an aerosol, and a pair of flow paths through which water flows inside the water supply nozzle 250 is an intermediate point of the entire length of the nozzle. It forms a gentle arc toward the jetting hole, but adjacent to the jetting port, the pair of flow paths are formed to rotate in the form of 360 ° spiral, and the water is rapidly spiraled out of the jetting port and discharged to the jetting port. As a result, it is possible to maintain a constant spraying range regardless of water pressure and flow rate.

Therefore, the water is rotated and sprayed in a spiral shape due to the shape of the water supply nozzle, and the water spraying efficiency is improved by this effect.

And a heat exchanger cleaning unit 260 is connected to the water supply line for supplying water to the water supply nozzle 250, and selectively supply the cleaning liquid to the water supply line in accordance with the operation of the water supply nozzle 250, the water together with the Sprayed on the indirect evaporator 200 to clean the indirect evaporator 200.

Here, the water supply nozzle 250 is driven according to the outside air temperature, the flow meter (not shown) indicating the flow rate of the water flowing along the water supply line 251 on the water supply line 251 of the water supply nozzle 250 ), A pressure reducing valve (unsigned) for depressurizing water at a constant pressure, and a solenoid valve (unsigned) for selectively opening / closing the water supply line 251. The solenoid valve (unsigned) The heat exchanger cleaning unit 260 is connected between the water supply nozzles 250.

In this case, referring to FIG. 9, the heat exchanger cleaning unit 260 selectively supplies a cleaning liquid to the water supply line 251, mixed with water to clean the indirect evaporator 200, and cleans the heat exchanger. The unit 260 includes a cleaning solution supply line 261 connected to the water supply line 251, and a cleaning solution tank 262 containing a cleaning solution on the cleaning solution supply line 261, a strainer (unsigned), and optionally A solenoid metering pump (not shown) for sending a predetermined amount of cleaning liquid per unit time, and a plurality of check valves (not shown) for preventing backflow are provided.

Therefore, the heat exchanger cleaning unit 260 according to an embodiment of the present invention selectively supplies a cleaning solution to the water supplied to the indirect evaporator 200 when the indirect evaporator 200 is operated, the indirect evaporator The cleaning of the 200 is performed, thereby improving heat exchange performance over a conventional heat exchanger.

On the other hand, the first heat exchange cell is made of aluminum to maintain a certain rigidity is excellent in durability, it is preferable that the surface is epoxy coated to prevent corrosion.

In addition, the second heat exchange cell is provided on the intake passage 10 and cools the outside air passing through the cooling heat from the cooled air in contact with the first heat exchange cell 210.

Here, the second heat exchange cell is also made of an aluminum material to maintain a constant rigidity is excellent in durability, it is preferable that the surface is epoxy coated to prevent corrosion.

As described above, when the indoor air is cooled due to latent heat of evaporation of the water in the first heat exchange cell, the indirect evaporator 200 transfers the cooling heat to the second heat exchange cell in contact with the first heat exchange cell. The outdoor air passing through the second heat exchange cell is cooled.

On the other hand, the indirect evaporator 200 is installed inside the housing 100, the outdoor air passing through the intake passage 10 in a rectangular box shape as a whole, and the indoor air passing through the exhaust passage 20 It is a structure that can pass through four sides. That is, the indirect evaporator 200 has a structure in which the outdoor air flows from the front to the rear while the indoor air flows from the one side to the other side.

Accordingly, the indirect evaporator 200 can be effectively positioned in both the intake passage 10 and the exhaust passage 20 and at the same time can reduce the space occupied to achieve a compact structure.

The indirect evaporator 200 is a technology for cooling the air by using the heat of evaporation of water, and the injected water flows along the wet channel to evaporate at the wet bulb temperature, and the wall temperature of the wet channel is converged to the wet bulb temperature of the air. The air in the gun channel is cooled.

Therefore, when the hydrophilic coating of the wet channel of the indirect evaporator 200 is performed, the water injected into the wet channel is spread evenly on the wall, thereby increasing the heat transfer efficiency to the dry channel.

In general, hydrophilic coating is known to have an effect of improving the heat transfer efficiency more than 5% compared to the conventional heat exchanger.

In addition, the indirect evaporator 200 may be coupled to a plurality of adjacent in series or parallel to each other, to increase the heat exchange capacity.

In the embodiment of the present invention, the indirect evaporator 200 is shown as an embodiment consisting of two connected in parallel adjacent to each other, but this is a preferred embodiment, the number and its connection method may vary depending on the design, etc. Of course.

The bypass passages 31, 32 and 33 bypass the indirect evaporator 200 to be supplied to the room or discharged to the outside, thereby compensating for the severe temperature difference between the outside and the ventilation to improve efficiency. It plays a role.

In detail, the bypass passages 31, 32, and 33 include a first bypass passage 31, a second bypass passage 32, and a third bypass passage 33. The bypass passage 31 guides the ventilation introduced from the ventilation inlet 102 to the indoor outlet 103 by bypassing the indirect evaporator 200, and the second bypass passage 32 is The ventilation flowed in from the inlet 102 guides the inlet evaporator 200 to the outlet 104, and the third bypass passage 33 flows in from the outside air inlet 101. The outside air is bypassed to the indirect evaporator 200 to guide the indoor outlet 103.

The blower unit 300 is provided on the intake passage 10 to forcibly attract the outside air to the interior, and is provided on the exhaust passage 20 to forcibly discharge the ventilation. A second blowing fan 320 is included. Here, the first blowing fan 310 and the second blowing fan 320 may be installed at various positions on the intake passage 10 and the exhaust passage 20 if the above object can be achieved. Of course, the number of installation can also be varied.

The damper unit is provided in each of the intake passage 10, the exhaust passage 20, and the bypass passages 31, 32, and 33 to selectively control the flow of the ventilation or the outside air.

Looking at this in detail, the damper unit is provided on the intake passage 10 on the outside air inlet 101 side, the outside air damper 410 for selectively controlling the inflow of the outside air and the ventilation inlet 102 A ventilation damper (not shown) provided on the intake passage 10 on the side to selectively control the inflow of the ventilation, and an exhaust damper 420 provided on the outlet side to selectively control the outflow of the ventilation. Include.

In addition, the damper unit is provided on the first bypass passage 31 on the ventilation inlet 102 side, the first bypass damper 430 for selectively adjusting the bypass of the ventilation, and the outlet side A second bypass damper 440 provided on the second bypass passage 32 to selectively control the bypass of the ventilation, and the third bypass passage 33 on the outside air inlet 101 side. It is provided on the) includes a third bypass damper (450) for selectively controlling the inflow of the outside air.

On the other hand, the damper unit is provided with a plurality of dampers in order to control the flow of air passing through, it is shown as a preferred embodiment to control the flow of air by adjusting the opening and closing number of the damper, but the Various configurations such as a fan motor, a flow control valve, or a damper may be applicable as a configuration for adjusting the flow rate.

The present invention further includes a heating unit 600 which is provided on the intake passage 10 and which supplies the air by heating the air by the control unit 500.

The heating unit 600 is provided at the indoor discharge port 103 side to heat before the air is supplied to the room, it is possible to apply a heating coil of the Oval type having a good heat transfer area and efficiency. However, this is, of course, various embodiments are possible if the above object can be achieved in one embodiment.

As described above, the air conditioning system 700 may improve energy efficiency by cooling outdoor air by latent heat of evaporation of water through the indirect evaporator 200, thereby improving energy efficiency and using energy. Can reduce the cost.

The control unit 500 is connected to the heating unit 600 and the water supply nozzle 250 to control the operation, and by controlling the damper unit to selectively control the flow of the outside air or ventilation in accordance with the outside temperature It is responsible for implementing the mode.

Here, the detailed description of the control unit 500 indicates the air flow for each mode.

First, referring to FIG. 11, the ventilation circulation mode is mainly applied in winter to block the inflow of outside air into the room, and the ventilation is circulated.

In the ventilation circulation mode, the control unit 500 closes the ventilation damper and the exhaust damper 420 to block the ventilation from being discharged to the outside, and blocks the outside air damper 410 to allow the inflow of outside air. In the blocked state, the first bypass damper 430 is opened to control the ventilation to be introduced into the room through the first bypass passage 31. In this case, the control unit 500 may drive the heating unit 600 in accordance with the ventilation temperature to heat the ventilation to a set temperature to resupply to the room.

Next, referring to FIG. 12, the circulation mode is applied to both summer and winter, and during summer, the outdoor air is cooled and cooled into the room by using a relatively low temperature ventilation. This mode is to let outdoor air flow into the room after using high ventilation.

In the circulation mode, the control unit 500 closes the second bypass damper 440 and the third bypass damper 450 in summer or winter so that the ventilation and the outside air are the indirect evaporator. Bypassing the 200 to block the outflow and inflow, and open the ventilation damper, the outside air damper 410 to allow the outside air and ventilation to enter and exit through the indirect evaporator (200). In this case, the control unit 500 may partially open the first bypass damper 430 to allow the ventilation to be introduced into the room through the first bypass passage 31.

In addition, in the circulation mode, the control unit 500 may control the heating unit 600 to heat and supply the outside air introduced into the room.

Referring to FIG. 13, the ventilation mode is mainly applied when the outside temperature is an average temperature, and partially opens the second bypass passage 32 and the third bypass passage 33 in the circulation mode. It is.

In the ventilation mode, the control unit 500 first opens the ventilation damper and the exhaust damper 420 similarly to the circulation mode so that outside air is supplied to the room via the indirect evaporator 200, Opening the ventilation damper and the external air damper 410 to allow the ventilation to be discharged to the outside through the indirect evaporator 200, with the second bypass damper 440 and the third bypass damper 450 ) To open a part of the ventilation and the outside air to bypass the indirect evaporator 200 to enter the room and discharge to the outside.

Referring to FIG. 14, the superheat mode is mainly applied in summer when the temperature of the outside air is much higher than the set temperature, and the outside air and the ventilation are not exchanged with each other by the indirect evaporator 200.

In the overheat mode, the control unit 500 opens the ventilation damper, the exhaust damper 420, and the second bypass damper 440 and closes the first bypass damper 430 to ventilate the vent. Bypasses the indirect evaporator 200 to be discharged to the outside, the external air damper 410 is closed, and the third bypass damper 450 is opened to allow the outside air to bypass the indirect evaporator 200. Allow the air to enter the room without heat exchange with ventilation.

Referring to FIG. 15, the insulation mode is mainly applied in summer, and is configured to drive the water supply nozzle 250 so that outside air is cooled in the indirect evaporator 200 and introduced into the room.

In the insulation mode, the control unit 500 closes the second bypass damper 440 and the third bypass damper 450 in the same manner as the circulation mode so that the ventilation and the outside air are indirect. Bypassing the evaporator 200 to block the outflow and inflow, and open the ventilation damper, the outside air damper 410 to allow the outside air and ventilation to enter and exit through the indirect evaporator 200, the water supply The nozzle 250 is driven to cool the outside air passing through the nozzle 250 to be introduced into the room.

As described above, the air conditioning system 700 can execute various air-conditioning modes described above in response to the temperature of outside air and ventilation such as summer and winter, thereby increasing the utility value, and thereby reducing the cost. Can be improved.

Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

100: housing 101: outside air inlet
102: ventilation inlet 103: indoor outlet
104: outlet 200: indirect evaporator
250: water supply nozzle 251: storage tank
300: blower unit
310: first blowing fan 320: second blowing fan
410: air damper 420: exhaust damper
430: first bypass damper 440: second bypass damper
450: third bypass damper 500: control unit
600: heating unit 700: air conditioning system

Claims (14)

The outside air inlet through which the outside air is introduced, the ventilation inlet through which the ventilation is introduced, an indoor outlet through which the outside air or the ventilation flowed from the outside air inlet or the ventilation inlet into the room, and the ventilation introduced from the ventilation inlet to the outside A housing having a discharge port for discharging, the inlet flow passage guiding the outside air introduced from the outside air inlet to the indoor discharge port, and an exhaust flow path guiding the ventilation flown from the ventilation inlet port to the discharge port;
An indirect evaporator provided on the exhaust passage and the intake passage, having a hydrophilic coating on a surface thereof, and indirect heat exchange between the outside air and the ventilation;
A water supply nozzle provided at one side of the indirect evaporator and selectively spraying water on the indirect evaporator;
A heat exchanger cleaning connected to a water supply line for supplying water to the water supply nozzle, selectively supplying a cleaning liquid to the water supply line according to the operation of the water supply nozzle, and spraying the indirect evaporator with water to clean the indirect evaporator. unit;
Bypass passage for bypassing the indirect evaporator or the outside air is supplied to the room or discharged to the outside;
A blowing unit provided on the intake passage and including a first blowing fan for forcing the outside air to the interior, and a second blowing fan provided on the exhaust passage for forcibly discharging the ventilation;
A damper unit provided in each of the intake passage, the exhaust passage, and the bypass passage to selectively control the flow of the ventilation or the outside air; And
Controlled in electrical connection with the damper unit and the heat exchanger cleaning means, controlling the drive of the heat exchanger cleaning means while controlling the flow of the outside air or the ventilation by the control of the damper unit selectively according to the temperature and humidity of the outside air. A unit;
The housing is
A plurality of frames forming a frame, a plurality of connectors connecting the ends of the frames to each other, and a heat insulating wall coupled to the frame to form a wall, wherein the heat insulating wall includes an inner member and an outer portion located therein. A wall case having an accommodation space formed therein by a combination of an outer member positioned at an inner side of the wall case; Is provided, while supporting the inner member and the outer member of the wall case air conditioning system using a hydrophilic coating indirect evaporator comprising a support for preventing thermal cross-linking phenomenon inside and outside.
The method according to claim 1,
The bypass flow path
A first bypass passage for guiding the ventilation introduced from the ventilation inlet to the indoor outlet by bypassing the indirect evaporator;
A second bypass passage for guiding the ventilation introduced from the ventilation inlet to the outlet by bypassing the indirect evaporator;
An air conditioning system using a hydrophilic coating indirect evaporator comprising a third bypass passage for guiding the outside air introduced from the outside air inlet to the indoor outlet by bypassing the indirect evaporator.
The method according to claim 2,
The damper unit is
An outside air damper provided at the outside air inlet side to selectively control the inflow of the outside air;
A ventilation damper provided on the intake passage at the ventilation inlet side and selectively controlling the inflow of the ventilation;
An exhaust damper provided at the outlet side to selectively control the outflow of the ventilation;
A first bypass damper provided on the first bypass passage at the ventilation inlet side and selectively controlling the bypass of the ventilation;
A second bypass damper provided on the second bypass passage at the ventilation inlet side to selectively control the bypass discharge of the ventilation;
And a third bypass damper provided on the third bypass passage at the outside air inlet side to selectively control the bypass of the outside air.
The method according to claim 3,
The air conditioning system using a hydrophilic coating indirect evaporator provided on the intake passage, the heating unit for heating the air by the control unit for supplying further to the room.
delete The method according to claim 1,
The housing is an air conditioning system using a hydrophilic coating indirect evaporator formed with a single insulation line.
The method according to claim 6,
The insulation worker
Air conditioning system using a hydrophilic coating indirect evaporator composed of a plurality of layers.
The method according to claim 4,
When the control unit is in the winter ventilation circulation mode,
Closing the ventilation damper and the exhaust damper to block the ventilation from being discharged to the outside, blocking the outside air damper to block the inflow of outside air, and opening the first bypass damper to open the first bypass damper. An air-conditioning system using a hydrophilic coating indirect evaporator to be introduced into the room through the bypass passage, and to drive the heating unit to heat the ventilation to resupply the room.
The method according to claim 4,
The control unit, in the summer circulation mode,
Closing the second bypass damper and the third bypass damper to prevent the ventilation and the outside air from flowing out and entering the indirect evaporator, and opening the ventilation damper and the outside air damper to open the outside air. And an air-conditioning system using a hydrophilic coating indirect evaporator to allow ventilation to be introduced and discharged through the indirect evaporator, thereby cooling the outside air and supplying it to the room using a relatively low temperature ventilation.
The method according to claim 4,
The control unit, in the winter circulation mode,
Closing the second bypass damper and the third bypass damper to prevent the ventilation and the outside air from flowing out and entering the indirect evaporator, and opening the ventilation damper and the outside air damper to open the outside air. And a hydrophilic coating indirect evaporator to allow ventilation to be introduced and discharged through the indirect evaporator, and to heat the outside air by using a relatively high temperature ventilation, and then to heat the outside air by supplying the heating unit to the room. Air conditioning system.
The method according to claim 10,
The control unit,
And a hydrophilic coating indirect evaporator for partially opening the first bypass damper to allow the ventilation to enter the room through the first bypass flow path.
The method according to claim 4,
When the control unit is in the ventilation mode,
Opening the ventilation damper and the exhaust damper to allow the outside air to be supplied to the room via the indirect evaporator, and opening the ventilation damper and the external air damper to allow ventilation to be discharged to the outside through the indirect evaporator; And a hydrophilic-coated indirect evaporator which partially opens the bypass damper and the third bypass damper so that part of the ventilation and outside air bypasses the indirect evaporator and enters and exits the room.
The method according to claim 4,
When the control unit is in the overheat mode in the summer,
The ventilation damper, the exhaust damper and the second bypass damper are opened and the first bypass damper is closed so that the ventilation is discharged to the outside by bypassing the indirect evaporator, and the external air damper is closed and the third A pass damper is open and air conditioning system using a hydrophilic coating indirect evaporator to bypass the indirect evaporator into the room.
The method according to claim 4,
The control unit, in the summer insulation mode,
Closing the second bypass damper and the third bypass damper to prevent the ventilation and the outside air from flowing out and entering the indirect evaporator, and opening the ventilation damper and the outside air damper to open the outside air. And a hydrophilic coating indirect evaporator to allow ventilation to be introduced and discharged through the indirect evaporator, and to cool the outside air passing through the inlet evaporator to enter the room.

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