KR101899523B1 - High efficiency heat pump type cooling and heating apparatus with complex heat exchange - Google Patents

Abstract

The present invention relates to a compressor for compressing and supplying a refrigerant at a high temperature and a high pressure; A high temperature heat exchanger constituting a condenser for condensing the refrigerant supplied from the compressor to low temperature and high pressure; A mid-temperature heat exchanger for converting the refrigerant supplied from the high-temperature heat exchanger into a low-temperature low-pressure refrigerant by heat-exchanging the refrigerant with the heat medium flowing through the cooling tower; An expansion valve for expanding the refrigerant supplied from the intermediate-temperature heat exchanger; A cold water heat exchanger connected to the expansion valve and the compressor, for evaporating heat from the refrigerant provided from the expansion valve through heat exchange with the heat medium discharged from the indoor load, thereby absorbing heat; And a low temperature heat exchanger installed between the intermediate temperature heat exchanger and the expansion valve for exchanging heat between the refrigerant discharged from the intermediate temperature heat exchanger and the refrigerant discharged from the cold water heat exchanger.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a high efficiency heat pump type air conditioner,

The present invention relates to a high efficiency heat pump type cooling / heating apparatus using multiple heat exchangers, and more particularly, to a high efficiency heat pump type cooling / heating apparatus using multiple heat exchangers, Efficiency heat pump type air conditioning and heating apparatus using composite heat exchange capable of facilitating the assembly of a heat exchanger capable of performing heat exchange.

Generally, the majority of Korean families with Ondol culture develops floor heating or hot water by driving the boiler during the winter season, air conditioning by the air conditioner during the winter season, and hot water is supplied by using a boiler or a separate heat source if necessary.

As described above, since a boiler, an air conditioner, or a separate heat source is used as the heating / cooling means in the winter season and the summer season, it takes a lot of cost to install a large number of systems in the home, and when all the heating / heating means are installed, There is a problem that the capacity of the system as a whole increases.

In addition, when heating is performed using only the heat pump, since the heating load for heating and hot water supply can not be covered by only the heat energy generated in the condenser, auxiliary heating means for heating hot water such as a separate electric heater or burner is provided in the hot water tank There is a problem in that the configuration is complicated due to the fact that a plurality of configurations are included, and operation and control must be performed for each configuration.

In order to solve the above problems, a cooling / heating hot water supply system equipped with a heat pump has been developed. In the conventional cooling / heating hot water supply system, a compressor, a condenser, an expansion valve and an evaporator are sequentially connected to form a refrigeration cycle Heat exchanger between the refrigerator and the heat pump of the compressor, the superheat heat exchanger, the four-way control valve, the main heat exchanger, the bidirectional expansion valve, and the auxiliary heat exchanger in order, And a heating medium circulation means for storing and circulating the low temperature or high temperature heating medium obtained by the heat exchange between the hot water supply means for storing and supplying the obtained hot water and the main heat exchanger of the heat pump for use in cooling and heating.

BACKGROUND ART [0002] The background art of the present invention is disclosed in Korean Patent Registration No. 10-0540362 (published on Jan. 10, 2006, entitled " Heat and Cooling Hot Water System with Heat Pump).

The heating / heating hot water supply system according to the related art has a real advantage in saving the fossil fuel, but there is a problem that the main energy source is power and the power used is very large.

In addition, since the conventional heating / cooling hot water system uses only one of the energy source of the cold water and the energy source of the hot water produced by the heat pump, there is a problem that the efficiency is lowered.

In addition, the heating / cooling hot water supply system according to the related art has a problem that it is difficult to reduce the time and cost required for manufacturing and installing the heat exchanger because the heat exchanger has a complicated structure.

Therefore, there is a need for improvement.

The present invention relates to a composite heat exchange system capable of transferring a low-temperature heat source to a high temperature by using heat of a refrigerant or condensation heat, or to transfer a high-temperature heat source to a low temperature to improve thermal efficiency, and to easily assemble a heat exchanger And an object of the present invention is to provide a highly efficient heat pump type air conditioning and heating apparatus.

The present invention relates to a compressor for compressing and supplying a refrigerant at a high temperature and a high pressure; A high temperature heat exchanger constituting a condenser for condensing the refrigerant supplied from the compressor to low temperature and high pressure; A mid-temperature heat exchanger for converting the refrigerant supplied from the high-temperature heat exchanger into a low-temperature low-pressure refrigerant by heat-exchanging the refrigerant with the heat medium flowing through the cooling tower; An expansion valve for expanding the refrigerant supplied from the intermediate-temperature heat exchanger; A cold water heat exchanger connected to the expansion valve and the compressor, for evaporating heat from the refrigerant provided from the expansion valve through heat exchange with the heat medium discharged from the indoor load, thereby absorbing heat; And a low temperature heat exchanger installed between the intermediate temperature heat exchanger and the expansion valve for exchanging heat between the refrigerant discharged from the intermediate temperature heat exchanger and the refrigerant discharged from the cold water heat exchanger.

In addition, a tubular heat exchanger for exchanging the refrigerant discharged from the high-temperature heat exchanger with the heat medium flowing through the cooling tower is provided between the cooling tower and the mesothermal heat exchanger of the present invention.

The medium-temperature heat exchanger of the present invention is characterized in that refrigerant discharged from the high-temperature heat exchanger is exchanged with a heat medium to be provided as the indoor load before heat exchanging with the heat medium passing through the cooling tower.

Further, the compressor, the high temperature heat exchanger, the intermediate temperature heat exchanger, the expansion valve, the cold water heat exchanger, and the low temperature heat exchanger of the present invention are integrated into a composite heat exchange unit.

Further, the indoor load of the present invention is characterized by including at least one of a hot water tank, a fan coil unit, an air conditioner, and a refrigerator.

The high efficiency heat pump type cooling / heating apparatus using the complex heat exchange according to the present invention is characterized in that a conventional refrigerator for cooling which is connected to a cooling tower and a conventional heating boiler for producing hot water are provided with a compressor, a high temperature heat exchanger, a medium temperature heat exchanger, A heat exchanger and a low-temperature heat exchanger, so that a composite heat exchanging unit in which various heat exchanges are generated in combination can be applied to produce cold water or hot water sufficient for cooling and heating with low power consumption, and thermal efficiency is improved.

In addition, in the high efficiency heat pump type air conditioning apparatus using the complex heat exchange according to the present invention, it is possible to combine the chamber panel and the chamber panel in a one-touch manner without a separate fastening member, Since the panel and the chamber panel are pressurized to each other, it is possible to simplify the manufacture of the heat exchanger, thereby reducing the time and cost of manufacturing the heat exchanger and reducing the working fluid or water to a gap between the mounting panel and the chamber panel There is an advantage that it can be prevented.

1 is a configuration diagram illustrating a high-efficiency heat pump type air conditioner using a complex heat exchange according to an embodiment of the present invention.
FIG. 2 is a configuration diagram illustrating a high-efficiency heat pump type air conditioner using a complex heat exchange according to an embodiment of the present invention.
FIG. 3 is a front view showing a heat exchange device of a high efficiency heat pump type air conditioner using a complex heat exchange according to an embodiment of the present invention.
FIG. 4 is a cross-sectional view illustrating a heat exchanger constituting a condenser of a high-efficiency heat pump type air conditioner using composite heat exchange according to an embodiment of the present invention.
FIG. 5 is a cross-sectional perspective view illustrating a structure of an inlet port of a heat exchanger constituting a condenser of a high efficiency heat pump type air conditioner using composite heat exchange according to an embodiment of the present invention.
FIG. 6 is a cross-sectional perspective view illustrating a discharge port inner structure of a high efficiency heat pump type air conditioner using composite heat exchange according to an embodiment of the present invention.
FIG. 7 is an exploded perspective view illustrating a first chamber of a high-efficiency heat pump type air conditioner using composite heat exchange according to an embodiment of the present invention.
FIG. 8 is an exploded perspective view illustrating a second chamber of the high-efficiency heat pump type air conditioner using composite heat exchange according to an embodiment of the present invention.
FIG. 9 is a configuration diagram illustrating a pressurized coupling portion of a high efficiency heat pump type air conditioner using composite heat exchange according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a highly efficient heat pump type air conditioning and heating apparatus using multiple heat exchange according to the present invention will be described with reference to the accompanying drawings.

In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator.

Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a view illustrating a control state of a high-efficiency heat pump type air conditioner using a complex heat exchange according to an embodiment of the present invention, and FIG. 2 is a schematic view illustrating a high efficiency heat pump using a complex heat exchange according to an embodiment of the present invention. FIG. 3 is a front view showing a heat exchange device of a high efficiency heat pump type air conditioner using a complex heat exchange according to an embodiment of the present invention.

FIG. 4 is a cross-sectional view illustrating a heat exchanger constituting a condenser of a high-efficiency heat pump type air conditioning apparatus using a complex heat exchange according to an embodiment of the present invention. FIG. 5 is a cross- FIG. 6 is a perspective view illustrating a structure of a high-efficiency heat pump type air conditioner using a complex heat exchange according to an embodiment of the present invention. FIG. Fig.

7 is an exploded perspective view illustrating a first chamber of a high-efficiency heat pump type air conditioner using composite heat exchange according to an embodiment of the present invention. FIG. 8 is a cross- And the second chamber portion of the heat pump type air conditioner is an exploded perspective view.

Referring to FIGS. 1 to 8, a highly efficient heat pump type cooling / heating apparatus using multiple heat exchange according to an embodiment of the present invention includes a compressor 30 that compresses and supplies a refrigerant at a high temperature and a high pressure, Temperature heat exchanger (50) for converting the refrigerant supplied from the high-temperature heat exchanger (40) into a low-temperature low-pressure refrigerant by heat-exchanging the refrigerant supplied from the high-temperature heat exchanger (40) An expansion valve 60 connected to the expansion valve 60 and the compressor 30 and connected to the expansion valve 60 for cooling the refrigerant supplied from the indoor load A cold water heat exchanger 70 for absorbing heat by evaporation through heat exchange with a heat medium to be discharged and a refrigerant heat exchanger 70 installed between the intermediate temperature heat exchanger and the expansion valve 60 for discharging the refrigerant discharged from the intermediate temperature heat exchanger 50 to the cold water heat exchanger 70, Lobu And a low-temperature heat exchanger (80) for exchanging heat with the refrigerant discharged from the compressor.

The heating medium of the present embodiment includes water for producing cold water and hot water, and various fluids other than water can be used. The indoor load is provided on the indoor side to heat and warm the room. A fan coil unit for performing indoor cooling or heating by circulating the supplied hot water tank, cold water or hot water into the coil and blowing air into the coil, an air conditioner for cooling or heating by circulating the refrigerant through the heat exchanger 90, And a refrigerator that absorbs the refrigerant and lowers the temperature in the enclosed space below the ambient temperature.

The cooling tower is an outdoor side heat exchanger (90) for cooling by heat exchange with outdoor air for reuse of cooling water in the complex heat exchange unit. When water is exchanged with cold air, a part of water is evaporated and heat necessary for evaporation is consumed, The cooling tower uses this phenomenon to flow water from the tower and blow out the outdoor air from the bottom.

The compressor 30 compresses the refrigerant to a high temperature and a high pressure and discharges the refrigerant. The refrigerant evaporated in the cold water heat exchanger 70 is discharged into the high temperature heat exchanger 40 to circulate the refrigerant through the high temperature and high pressure state And is connected to the intermediate-temperature heat exchanger (50) via the high-temperature heat exchanger (40).

The high temperature heat exchanger 40 is connected to the compressor 30 and the high temperature refrigerant discharged from the compressor 30 is heat-exchanged with a heating medium to be provided as an indoor load, .

The high temperature heat exchanger (40) is connected to the medium temperature heat exchanger (50), and the refrigerant discharged from the high temperature heat exchanger (40) is heat - exchanged with the low temperature heat medium flowing through the cooling tower to perform the primary condensation operation.

The high-temperature heat exchanger (40) is composed of a water-cooled heat exchanger (90) of various structures such as a tubular type, a mouth type, a cell tube type, and a horizontal cell tube type double tube type.

A pump is installed on the pipeline through which the cooled heat medium flows into the intermediate-temperature heat exchanger (50) while flowing through the cooling tower.

The intermediate-temperature heat exchanger (50) is formed to heat-exchange the refrigerant discharged from the high-temperature heat exchanger (40) with a heat medium to be provided as an indoor load through another pipeline before heat-exchanging the refrigerant with the heat medium flowing through the cooling tower.

The intermediate-temperature heat exchanger 50 is connected to an expansion valve 60. The expansion valve 60 expands the high-pressure liquid refrigerant flowing through the intermediate-temperature heat exchanger 50 to a low pressure to lower the boiling point, .

A cold water heat exchanger 70 is connected between the expansion valve 60 and the compressor 30. The cold water heat exchanger 70 exchanges the refrigerant expanded in the expansion valve 60 with the cooled heat medium, Thereby circulating the evaporated refrigerant to the compressor 30 again.

The medium-temperature heat exchanger according to the present embodiment includes a main body 51 having an inlet port 50a and a discharge port 50b, and a main body 51 that is partitioned into a plurality of spaces, A plurality of first circulation tubes 56 arranged in any one of a plurality of spaces defined by the partitioning walls 51a and the partitioning walls 51a and a plurality of first spaces 51b defined by the partitioning walls 51a, A plurality of second circulation tubes 57 arranged in another space of the main body 51 and a hole portion provided at one end of the main body 51 and through which a plurality of refrigerants are introduced or discharged, And a second chamber portion 54 provided at the other end of the main body 51 and adapted to change the traveling direction of the refrigerant circulating inside the main body 51. The first chamber portion 52 includes a first chamber portion 52,

The main body 51 is elongated in the left and right direction and has a suction port 50a formed at an upper portion thereof and a discharge port 50b formed at a lower portion thereof so that the heat medium flowing through the suction port 50a flows along the partition wall 51a 51 and then dropped into the body of the main body 51 through a gap formed between the partition wall 51a and the inner wall of the main body 51. [

Accordingly, the heat medium having a relatively large amount of heat energy passes through the upper space of the partitioning wall 51a and supplies heat energy to the refrigerant flowing along the first circulation tube 56. [

The partitioning wall 51a is elongated horizontally so as to divide the main body 51 into upper and lower portions and a gap is formed between the end of the main body 51 near the first chamber portion 52 and the partitioning wall 51a The heating medium flowing through the upper portion of the main body 51 and circulating along the upper surface of the partitioning wall 51a is dropped to the lower portion of the main body 51 and then circulated through the lower portion of the main body 51 again and then discharged through the discharge port 50b do.

The first circulation tube 56 is positioned above the main body 51 partitioned by the partition wall 51a and the second circulation tube 57 is positioned below the partition wall 51a. Respectively.

The first chamber portion 52 is provided with a plurality of through hole portions 52d through which the refrigerant discharged from the first circulation tube 56 is circulated through the first circulation tube 56 The first chamber panel 52a includes a first mounting panel 52g that is installed at one end of the main body 51 and has a plurality of first circulation tubes 56 mounted thereon and a second mounting panel 52g that is disposed between the mounting panel and the first chamber panel 52a And a first sealing pad 52e interposed between the first and second sealing pads 52a and 52b to prevent the refrigerant from being lost.

The second chamber part 54 may include a second chamber panel 56 for switching the direction of the refrigerant supplied along the plurality of first circulation tubes 56 or the plurality of second circulation tubes 57, A second mounting panel 54e which is installed at the other end of the main body 51 and on which the first circulation tube 56 and the second circulation tube 57 are mounted; And a second sealing pad 54c interposed between the mounting panels 54e.

The heating medium flowing into the main body 51 through the inlet port 50a is moved to one side along the upper surface of the partition wall 51a and is in contact with the first circulation tube 56. Therefore, The hot fall exchange unit is formed while supplying heat energy to the refrigerant and the fruit dropped at the interval between the partition wall 51a and the inner wall of the main body 51 passes through the lower portion of the main body 51 along the bottom face of the partition wall 51a And is brought into contact with the second circulation tube (57), thereby forming a mid-temperature heat exchanger.

The cold water heat exchanger (70) includes a horizontal cell tube heat exchanger (90) so that a relatively large amount of heat medium can flow therethrough.

A low temperature heat exchanger 80 is provided between the intermediate temperature heat exchanger 50 and the expansion valve 60 and between the cold water heat exchanger 70 and the compressor 30 and the low temperature heat exchanger 80 is connected to the intermediate temperature heat exchanger 50 The refrigerant is discharged from the cold water heat exchanger 70 and exchanged with the refrigerant to be introduced into the compressor 30 so that the expansion efficiency of the refrigerant by the expansion valve 60 and the expansion efficiency of the compressor 30 to improve the compression efficiency of the refrigerant.

Between the cooling tower and the intermediate-temperature heat exchanger 50, a heat exchanger 90 for exchanging the refrigerant discharged from the high-temperature heat exchanger 40 with the heat medium flowing through the cooling tower is provided, and the heat exchanger 90 includes a cell tube type .

A solenoid valve 100 is provided between the low temperature heat exchanger 80 and the expansion valve 60 to regulate the expansion amount of the refrigerant and a dryer 110 for removing moisture contained in the refrigerant is installed downstream of the solenoid valve 100.

FIG. 9 is a configuration diagram illustrating a pressurized coupling portion of a high efficiency heat pump type air conditioner using composite heat exchange according to another embodiment of the present invention.

9, the highly efficient heat pump type cooling / heating apparatus using the multiple heat exchange according to another embodiment of the present invention includes the chamber panels 54a and 52g and the chamber panels 54a and 52a constituting the chamber parts 52 and 54, 52g and the chamber panels 54a, 52a to be operated at intervals between the mounting panels 54e, 52g and the chamber panels 54a, 52a by one-touch coupling without separate fastening members and pressurizing the mounting panels 54e, 52g and the chamber panels 54a, And a pressure coupling portion 200 for preventing fluid or water from being lost.

The press fitting portion 200 of this embodiment includes protruding posts 210 protruding from the mounting panels 54e and 52g and penetrating through the sealing pads and chamber panels 54a and 52a and protruding posts 210 protruding from the protruding posts 210 An eccentric cam member 230 rotatably mounted on the protruding stage 216 and a lever member 250 mounted on the eccentric cam member 230. The eccentric cam member 230 is provided with a protrusion 216,

Accordingly, when the operator places the sealing pads on the mounting panels 54e and 52g and seats the chamber panels 54a and 52a on the outer surfaces of the sealing pads, a plurality of protrusive pillars 210, which are provided on the rim of the mounting panels 54e and 52g, The protruding stage 216, the eccentric cam member 230 and the lever member 250 are protruded outward through the sealing pad and the chamber panels 54a and 52a so that the operator grips the lever member 250, The lever member 250 and the eccentric cam member 230 are rotated about the hinge portion 218 so that the through hole formed in the chamber panels 54a and 52a and the eccentric cam member 230 The chamber panels 54a and 52a are engaged with each other.

Since the eccentric cam member 230 is formed of a cam member having a narrow width and a long eccentric shape in comparison with the diameter of the through-hole portion of the chamber panels 54a and 52a, the lever member 250 is rotated, The side surface of the eccentric cam member 230 presses the outer wall of the chamber panels 54a and 52a toward the mounting panels 54e and 52g side.

At this time, since the protruding pillar 210 protrudes and protrudes the elastic member 217, the eccentric cam member 230 pushes the outer wall of the chamber panels 54a and 52a toward the mounting panels 54e and 52g So that the sealing pads interposed between the chamber panels 54a and 52a and the mounting panels 54e and 52g are compressed to prevent the working fluid and water from being lost.

Since the stopper 214 is formed at the outer end of the protruded column 210 so as to be longer than the inner space at the entrance side of the operation groove 212, It is possible to prevent the protrusions 216 from being separated from the protrusive pillars 210 when the latching protrusions and stoppers 214 formed at the inner ends of the protrusions 216 are hooked.

The bent portion 252 formed by bending the lever member 250 is formed at the end of the lever member 250 and the bent portion 252 is formed in the inner side of the engaging groove portion 270 formed in the center portion of the outer wall of the chamber panels 54a, To be inserted into the chamber panels 54a and 52a.

A locking groove portion 272 is formed in the inner side surface of the locking groove portion 270 so as to insert a protrusion 254 protruding laterally from the bent portion 252. An inner side surface of the locking groove portion 270 is formed with an inner side The inclined surface 274 is formed so that the bent portion 252 and the projection 254 inserted into the lock groove portion 272 are guided inward.

When the operator rotates the lever member 250 and presses the chamber panels 54a and 52a with the eccentric cam member 230, when the lever member 250 is rotated toward the engaging groove portion 270, the protrusions 254 and the bent portions 252 are slid along the inclined surface 274 to the inside of the latching groove portion 270 and the protruding portion 254 sliding laterally along the inclined surface 274 is inserted into the lock groove portion 272, The engaging groove portion 270 is engaged.

As described above, according to the present embodiment, since the chamber panels 54a and 52a and the mounting panels 54e and 52g can be coupled by operating only the lever member 250 without a separate fastening member, Therefore, it is possible to reduce the time and cost required for manufacturing the heat exchanger.

This makes it possible to transfer the low temperature heat source to the high temperature by using the heat of the refrigerant or the condensation heat or to transfer the high temperature heat source to the low temperature to improve the thermal efficiency and to use the complex heat exchange which can easily assemble the heat exchanger A high efficiency heat pump type air conditioner can be provided.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

In addition, although a high efficiency heat pump type air conditioner using composite heat exchange has been described as an example, the present invention is merely an example, and the air conditioner of the present invention can be used for products other than the high efficiency heat pump type air conditioner.

Accordingly, the true scope of the present invention should be determined by the following claims.

30: compressor 40: high temperature heat exchanger
50: medium temperature heat exchanger 60: expansion valve
70: cold water heat exchanger 80: all heat exchanger
90: Heat exchanger 100: Solenoid valve
110: dryer 200: pressure-
210: projecting pillar 230: eccentric cam member
250: lever member 270:

Claims (5)

A compressor for compressing and supplying the refrigerant to high temperature and high pressure;
A high temperature heat exchanger constituting a condenser for condensing the refrigerant supplied from the compressor to low temperature and high pressure;
A mid-temperature heat exchanger for converting the refrigerant supplied from the high-temperature heat exchanger into a low-temperature low-pressure refrigerant by heat-exchanging the refrigerant with the heat medium flowing through the cooling tower;
An expansion valve for expanding the refrigerant supplied from the intermediate-temperature heat exchanger;
A cold water heat exchanger connected to the expansion valve and the compressor, for evaporating heat from the refrigerant provided from the expansion valve through heat exchange with the heat medium discharged from the indoor load, thereby absorbing heat; And
And a low temperature heat exchanger installed between the intermediate temperature heat exchanger and the expansion valve for exchanging heat between the refrigerant discharged from the intermediate temperature heat exchanger and the refrigerant discharged from the cold water heat exchanger,
And a tubular heat exchanger for exchanging the refrigerant discharged from the high temperature heat exchanger with the heat medium flowing through the cooling tower is provided between the cooling tower and the medium temperature heat exchanger,
The intermediate-temperature heat exchanger heat-exchanges the refrigerant discharged from the high-temperature heat exchanger with a heat medium to be provided as the indoor load before exchanging heat with the heat medium flowing through the cooling tower,
The medium temperature heat exchanger includes:
A main body having a suction port and a discharge port;
A partition wall partitioning the inside of the main body into a plurality of spaces and communicating with a plurality of spaces;
A plurality of first circulation tubes arranged in any one of a plurality of spaces defined by the partition walls;
A plurality of second circulation tubes arranged in another space among a plurality of spaces defined by the partition walls;
A first chamber part provided at one end of the main body and having a hole part through which a plurality of refrigerants are introduced or discharged and which changes the traveling direction of the refrigerant circulating inside the main body; And
And a second chamber part provided at the other end of the main body and adapted to change the traveling direction of the refrigerant circulating inside the main body,
Wherein the first chamber portion comprises:
A first chamber panel for supplying a refrigerant to the first circulation tube and forming a plurality of through holes through which the refrigerant discharged after being circulated through the first circulation tube passes;
A first mounting panel installed at one end of the main body and having a plurality of the first circulation tubes mounted thereon; And
And a first sealing pad interposed between the first mounting panel and the first chamber panel to prevent refrigerant from being lost,
Wherein the second chamber portion comprises:
A second chamber panel for switching the supply direction of the refrigerant supplied along the plurality of first circulation tubes or the plurality of second circulation tubes to supply the refrigerant;
A second mounting panel installed at the other end of the main body and on which the first circulation tube and the second circulation tube are mounted; And
And a second sealing pad interposed between the second chamber panel and the second mounting panel,
The first chamber panel and the second chamber panel, the first chamber panel and the second chamber panel are coupled with the first chamber panel and the second chamber panel in a one-touch manner without a separate fastening member, And a first chamber panel and a second chamber panel, wherein the first chamber panel and the second chamber panel are spaced apart from each other by a gap between the first mounting panel and the second mounting panel and the first chamber panel and the second chamber panel Further comprising a pressurizing coupling portion for preventing the working fluid or water from being lost. ≪ RTI ID = 0.0 > [10] < / RTI > delete delete The method according to claim 1,
Wherein the compressor, the high temperature heat exchanger, the intermediate temperature heat exchanger, the expansion valve, the cold water heat exchanger, and the low temperature heat exchanger are integrated into a composite heat exchange unit. The method according to claim 1 or 4,
Wherein the indoor load includes at least one of a hot water tank, a fan coil unit, an air conditioner, and a refrigerator.

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