KR100797893B1 - Integrated air handling unit using water-cooling type condenser - Google Patents

Abstract

An integrated air conditioner using a water-cooling type condenser is provided to secure regular heating efficiency while reducing energy for heating even though a temperature of external air is low in winter, and integrate an air conditioner in one casing to reduce an installation space. A casing(10) is divided into a front space and a rear space by a partition wall, having an indoor exhaust port and an outdoor inlet in the front space and having an indoor inlet and an outdoor exhaust port in the rear space. A supply fan(20) is arranged at the indoor exhaust port side in the front space. An evaporator(30) is arranged at the outdoor inlet side in the front space. A return fan is arranged at the indoor inlet side in the rear space. A compressor(50) is arranged at the outdoor exhaust port side in the rear space. A water-cooling type condenser(60) is arranged at the outdoor exhaust port side in the rear space, and condenses a refrigerant by water supplied from a pipe(L2) for heating of a building. A refrigerant pipe(L1) connects the compressor, the evaporator, and the water-cooling type condenser, having a four-way valve(70) between the compressor and the evaporator and having a refrigerant expanding unit(80) between the compressor and the water-cooling type condenser.

Description

Integrated air conditioner using water-cooled condenser {INTEGRATED AIR HANDLING UNIT USING WATER-COOLING TYPE CONDENSER}

1 is a schematic configuration diagram of an integrated air conditioner using a water-cooled condenser according to the present invention.

2 is a cycle diagram of the integrated air conditioner using a water-cooled condenser according to the present invention.

3 is a schematic structural diagram of a preferred embodiment of a water-cooled condenser applied to the present invention.

Explanation of symbols on the main parts of the drawings

1: integrated air conditioner using water-cooled condenser

10: casing

20: supply fan

30: evaporator

40: return fan

50: compressor

60: water-cooled condenser

70: four-way valve

80: refrigerant expansion means

L1: refrigerant tube

L2: Heating piping

The present invention relates to an integrated air conditioner using a water-cooled condenser, and more particularly, by applying a water-cooled condenser using a heating pipe of a building to prevent the decrease in efficiency caused by the change in the temperature of the outside air (outdoor air) and to the heating of the building. The invention relates to an integrated air conditioner using a water-cooled condenser that can save energy and reduce installation space by integrating the air conditioner itself into one casing.

In general, an air conditioner uses an endothermic action and an exothermic action formed by vaporization or liquefaction of a refrigerant circulating therein in a cooling / heating cycle in which a compressor, a condenser, a refrigerant expansion unit, and an evaporator are connected by a refrigerant pipe to form a closed circuit. It is a device for cooling or heating.

The air conditioner includes a compressor and a condenser, and an outdoor unit disposed outdoors, a refrigerant expansion unit and an evaporator, and an indoor unit installed indoors. The outdoor unit uses air to condense the refrigerant (air-cooled). A blowing fan for cooling the condenser is installed, and the indoor unit is provided with a blowing fan for blowing indoor air.

In the case of a conventional air conditioner equipped with an air-cooled condenser that cools using outside air, a change in the characteristics of the refrigerant is inevitably caused by the temperature change of the outside air. In particular, when the outside air temperature is significantly lowered, such as in winter, There is a problem that the efficiency of the air conditioner is sharply lowered as the refrigerant circulation is not properly caused by the temperature and the pressure drop.

In order to improve this problem, a method of attaching an electric heater to the indoor unit is being devised, but since it is auxiliary heating with an electric heater to compensate for the poor heating efficiency, it is not an essential improvement and additional energy is required for heating. There is a necessary problem.

In addition, in the case of the conventional air conditioner to which the air-cooled condenser is cooled by using outdoor air, the outdoor unit and the indoor unit must be separated and installed, which is troublesome to install, and there is a problem of securing a separate space for installing the outdoor unit.

Accordingly, an object of the present invention is to provide an integrated air conditioner using a water-cooled condenser that ensures a constant heating efficiency even when the outside air temperature is significantly lowered, such as winter, and at the same time saves energy for heating the building.

It is another object of the present invention to provide an integrated air conditioner using a water-cooled condenser that allows the air conditioner itself to be integrated into one casing to reduce the installation space.

An object of the present invention described above is partitioned into a front space and a rear space by a partition wall, the front space is provided with an indoor outlet and an outdoor inlet, the rear space is provided with a casing having an indoor inlet and an outdoor outlet, and in the front space A supply fan disposed at an indoor outlet side, an evaporator disposed at an outdoor inlet side in the front space, a return fan disposed at an indoor inlet side in the rear space, and an outdoor outlet side in the rear space And a water-cooled condenser disposed at the outdoor outlet side in the rear space and condensing the refrigerant by water provided from a heating pipe of the building, and connecting the compressor, the evaporator, and the water-cooled condenser, and the compressor and the evaporator in all directions. A valve is provided, and between the compressor and the water-cooled condenser is provided with a refrigerant expansion means An integral type air conditioner using a water-cooled condenser comprising a tube is achieved by providing.

According to a preferred feature of the invention, the water-cooled condenser is composed of a cylindrical case for receiving hot water from the heating pipe of the building and discharged back to the heating pipe of the building and the refrigerant pipe passing through the water-cooled condenser is zigzag in the cylindrical case Are arranged.

According to a further preferred feature of the invention, the evaporator may be configured as a linear evaporator.

DETAILED DESCRIPTION Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are intended to explain in detail enough to enable those skilled in the art to easily carry out the present invention. This does not mean that the technical spirit and scope of the present invention are limited.

1 shows a schematic configuration diagram of an integrated air conditioner using a water-cooled condenser according to the present invention, and FIG. 2 shows a cycle diagram of an integrated air conditioner using a water-cooled condenser according to the present invention. A schematic structural diagram of a preferred embodiment of the water-cooled condenser applied to the present invention is shown.

In the integrated air conditioner (1) using the water-cooled condenser according to the present invention, by applying the water-cooled condenser using the heating pipe of the building to prevent the efficiency decrease due to the change in the outside air temperature and at the same time the energy required for heating of the building can be reduced. It is possible to reduce the installation space by the air conditioner itself is integrated in one casing, as shown in Figs. 1 to 3, the front space (A) and the rear space (B) by the partition wall (11) The front space A is provided with an indoor outlet 13 and an outdoor inlet 15, and the rear space B is provided with a casing 10 having an indoor inlet 17 and an outdoor outlet 19. In the space A, the supply fan 20 disposed on the indoor outlet 13 side, the evaporator 30 disposed on the outdoor inlet 15 side in the front space B, and the rear space B. Return fan 40 and rear space disposed at the indoor inlet 17 side ( B) the refrigerant 50 is disposed by the compressor 50 disposed on the outdoor discharge port 19 side and the water provided from the heating discharge pipe L2 of the building in the rear space B on the outdoor discharge port 19 side. Connecting the water-cooled condenser 60, the compressor 50, the evaporator 30 and the water-cooled condenser 60 to condense the four-way valve 70 is provided between the compressor 50 and the evaporator 30, the compressor 50 And a refrigerant pipe (L1) provided with a refrigerant expansion means (80) between the water-cooled condenser (60).

Here, the casing 10 forms the main frame of the integrated air conditioner 1 using the water-cooled condenser according to the present invention, and at the same time, all the components of the integrated air conditioner 1 using the water-cooled condenser according to the present invention. The inner space is partitioned into a front space (A) and a rear space (B) by the partition wall 11, and the front space (A) has an indoor inlet (13) and an outdoor inlet for air flow in and out of the room. 15 is provided, and the rear space B is provided with an indoor inlet 17 and an outdoor outlet 19 for the flow of air to and from the interior and exterior.

The configuration of the casing 10 enables the integrated configuration unlike the conventional air conditioner, which is separated from the indoor unit and the outdoor unit. Although not shown, the outer surface of the casing 10 is integrated with the water-cooled condenser according to the present invention. A controller for controlling the air conditioner 1 is provided.

In the front space A of the casing 10 described above, a supply fan 20 is disposed at the indoor outlet 13 side, and the supply fan 20 includes an integrated air conditioner using a water-cooled condenser according to the present invention. By supplying the air cooled or heated by 1) to the room, it is preferable that the purification filter 21 is provided in the discharge side.

An evaporator 30 is disposed at the side of the outdoor inlet 15 in the front space B of the casing 10 described above. The evaporator 30 includes air in which the refrigerant liquefied by the refrigerant expansion means, which will be described later, is a cooled object. The refrigeration effect is generated by absorbing the latent heat of evaporation from vaporization, and it can be broadly divided into a direct expansion type (direct expansion type) evaporator and an indirect type evaporation type according to the cooling method.

In the direct evaporator, a method of directly cooling the air to be cooled by the endothermic by vaporization of the refrigerant is used. In an indirect evaporator, a second refrigerant such as water is cooled by cooling the air to be cooled directly in the evaporator. A method of cooling an air object to be cooled by a secondary refrigerant is used. In the integrated air conditioner 1 using a water-cooled condenser according to the present invention, a direct expansion evaporator is preferably used.

The return fan 40 is disposed at the indoor inlet 17 in the rear space B of the casing 10 described above, and the return fan 40 returns the air passing through the room back to the casing 10. It is preferable that the purification filter 41 is provided on the inflow side.

The compressor 50 is disposed at the outdoor discharge port 19 side in the rear space B of the casing 10 described above. The compressor 50 has a pressure of the refrigerant so that the vaporized refrigerant is easily condensed in the evaporator 30. By increasing the, the refrigerant is circulated along the refrigerant pipe (L1) while repeating the condensation and evaporation by the action of the compressor (50).

As the compressor 50, any conventionally known compressor may be used, including a reciprocating compressor that compresses steam by a piston moving up and down in a cylinder to increase pressure.

In the rear space B of the casing 10 described above, a water-cooled condenser 60 is disposed on the outdoor discharge port 19 side, and the water-cooled condenser 60 is a gas refrigerant having a high temperature and high pressure discharged from the compressor 50. It takes the role of condensation and liquefaction by taking heat as much as the latent heat of condensation from, and as shown in FIG. 3 so that the refrigerant can be condensed by the water provided from the heating pipe L2 of the building, as shown in FIG. Consists of a cylindrical case receiving the hot water from (L2) and discharged back to the heating pipe (L2) of the building, wherein the refrigerant pipe (L1) passing through the water-cooled condenser (60) is arranged in a zigzag in a cylindrical case It is preferably formed with a condenser.

If the water-cooled structure capable of condensing the refrigerant by the water provided from the heating pipe (L2) of the building, a vertical shell tube type condenser, a horizontal shell tube type condenser or a multi-channel condenser may be applied.

The compressor 50, the evaporator 30, and the water-cooled condenser 60 are connected by a refrigerant pipe L1, which is a refrigerant that generates heat and absorbs heat through a phase change. Between the 50 and the evaporator 30, a four-way valve 70 for determining the flow direction of the refrigerant is provided, and the refrigerant expansion means 80 is provided on the refrigerant pipe L1 between the compressor 50 and the water-cooled condenser 60. It is provided.

The four-way valve 70 serves to change the direction of the refrigerant in accordance with the cooling or heating purpose, the refrigerant expansion means 80 is a refrigerant to facilitate the endothermic action by evaporation prior to providing the refrigerant to the evaporator 30 It is designed to reduce the pressure and temperature of the battery and to supply the proper refrigerant flow in response to the change in the refrigeration load.It is provided with two to cope with the refrigerant flow due to cooling or heating, and a capillary tube or expansion valve is used. Can be.

Therefore, in the integrated air conditioner 1 using the water-cooled condenser according to the present invention, the compressor 50, the four-way valve 70, the evaporator 30, the refrigerant expansion means 80 on the refrigerant pipe L2 constituting the closed circuit. ) And the water-cooled condenser 60 are arranged to form a known cooling and heating cycle through the phase change of the refrigerant. Although the flow of the refrigerant according to the cooling and heating cycles is shown in FIG. 2, the circulation of such refrigerant is already known, and thus a detailed description thereof will be omitted.

According to the integrated air conditioner using the water-cooled condenser as described above, by applying the water-cooled condenser using the heating pipe of the building to prevent the efficiency decrease due to the change in the outside temperature, the air conditioner is stable regardless of the season or temperature change. It can be operated, and the heat emitted from the water-cooled condenser is transferred to the heating hot water as it is, there is an excellent effect to reduce the energy for heating of the building.

In addition, since all the components required for the air conditioner are integrated into one casing, there is an excellent effect of significantly reducing the installation space of the air conditioner.

Claims (3)

A casing which is partitioned into a front space and a rear space by a partition wall, the front space includes an indoor outlet and an outdoor inlet, and the rear space includes an indoor inlet and an outdoor outlet; A supply fan disposed at an indoor outlet side in the front space; An evaporator disposed at an outdoor inlet side in the front space; A return fan disposed at an indoor inlet side in the rear space; A compressor disposed at an outdoor outlet side in the rear space; A water-cooled condenser disposed at the outdoor outlet side in the rear space and condensing the refrigerant by water provided from a heating pipe of the building; And An air conditioner using a water-cooled condenser comprising a; a refrigerant pipe connected to the compressor, an evaporator and a water-cooled condenser, a four-way valve is provided between the compressor and the evaporator, and a refrigerant expansion means is provided between the compressor and the water-cooled condenser. . The method according to claim 1, The water-cooled condenser consists of a cylindrical case for receiving hot water from the heating pipe of the building and discharged back to the heating pipe of the building, and the refrigerant pipe passing through the water-cooled condenser is arranged in a zigzag in the cylindrical case. Integrated air conditioner using. The method according to claim 1 or 2, The evaporator is an integrated air conditioner using a water-cooled condenser, characterized in that the linear evaporator.

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