KR20120124709A - Air conditioner - Google Patents

Abstract

PURPOSE: An air conditioner is provided to prevent the reduction of heat transferring efficiency by a heat pipe and improve the flow of coolant. CONSTITUTION: An air conditioner comprises a housing(100), a heat pipe(200), a first guide(300), a second guide(400). The housing comprises a coolant inlet and a coolant outlet. The heat pipe is installed for the flow of cooling fluid cooling the coolant. The first guide is installed between the coolant inlet and the heat pipe for distributing coolant. The second guide is installed between the coolant inlet and the first guide.

Description

Air conditioner

The present invention relates to an air conditioner, and more particularly, to an air conditioner having a full-liquid condenser that prevents a high temperature / high pressure refrigerant from directly hitting a heat pipe and is evenly sprayed over the heat pipe.

An air conditioner is a device that is disposed in a room, a living room, an office, or a business store to adjust a temperature, humidity, cleanliness, and airflow of an air to maintain a comfortable indoor environment.

The air conditioner is generally provided with a compressor, an expansion valve, and a heat exchanger, and the heat exchanger may be configured as an indoor heat exchanger and an outdoor heat exchanger according to the type of the air conditioner. Moreover, in chiller type air conditioners etc., the high temperature / high pressure refrigerant | coolant compressed by the compressor can be cooled to medium temperature / high pressure in a condenser as needed.

In chiller type air conditioner, when the high temperature / high pressure refrigerant compressed by the compressor is cooled to medium temperature / high pressure in the condenser, the cooling fluid flows through the heat transfer tube and the high temperature / high pressure refrigerant is supplied to the outside of the heat transfer tube, Heat exchange may be effected with a flooded condenser.

In this case, when the high temperature / high pressure refrigerant is directly injected into the heat transfer tube, the heat transfer tube may be damaged by the pressure of the refrigerant. In addition, the refrigerant is concentrated to only a part of the heat transfer tube to reduce the heat exchange efficiency of the refrigerant and the cooling fluid.

The problem to be solved by the present invention is to provide an air conditioner to prevent the high-temperature / high-pressure refrigerant directly hit the heat pipe and evenly sprayed over the heat pipe.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

Air conditioner according to an embodiment of the present invention for achieving the above object,

A housing having a refrigerant inlet for introducing refrigerant and a refrigerant outlet for introducing the refrigerant; A heat transfer tube provided inside the housing, spaced apart from the coolant inlet, and a cooling fluid flowing therein to cool the coolant therein; A first guide provided between the coolant inlet and the heat transfer tube to disperse the coolant injected from the coolant inlet; And a second guide provided between the refrigerant inlet and the first guide to flow the refrigerant. It includes.

Specific details of other embodiments are included in the detailed description and the drawings.

According to the air purifier of the present invention has one or more of the following effects.

First, the first guide prevents the high temperature / high pressure refrigerant from directly hitting the heat pipe, and the second guide collides with the refrigerant dispersed at the refrigerant inlet and the first guide to guide the refrigerant reflected toward the heat pipe. Activate the flow of refrigerant.

Second, as the first guide is disposed adjacent to the refrigerant inlet and collides with the refrigerant introduced from the refrigerant inlet, the high temperature / high pressure refrigerant directly strikes the heat pipe, causing the heat pipe to be damaged by fatigue, or the contact of the refrigerant being concentrated. Some parts of the heat pipe prevent the phenomenon of inferior heat transfer efficiency.

Third, a flow path is formed together with the second guide and the first guide, and the refrigerant injected from the refrigerant inlet is bypassed immediately without being injected into the heat transfer tube and flows into the heat transfer tube, whereby a high temperature / high pressure refrigerant is directly injected into the heat transfer tube. To prevent them.

Fourth, as the plurality of second guides form a plurality of flow paths, the refrigerant is easily guided to the heat transfer tube, so that the flow of the refrigerant is smooth.

Fifth, as the plurality of second guides are disposed radially, each flow path formed by each of the second guides is formed to spread out like a fan blade around the coolant inlet, and thus the coolant and the first guide introduced from the coolant inlet The refrigerant impinged on the flow efficiently to the heat transfer tube.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is a schematic diagram of an air conditioner according to an embodiment of the present invention.
2 is a perspective view of a condenser according to an embodiment of the present invention.
3 is a cross-sectional view of a condenser according to another embodiment of the present invention.
4 to 6 are cross-sectional views of a condenser according to still other embodiments of the present invention.

Advantages and features of the present invention, and methods of achieving the same will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, an air cleaner according to the present invention will be described in more detail with reference to the accompanying drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

Hereinafter, an air conditioner according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic diagram of an air conditioner according to an embodiment of the present invention.

Referring to FIG. 1, an air conditioner according to an embodiment of the present invention includes a compressor 40 compressing a refrigerant, a condenser 10 condensing the refrigerant compressed in the compressor 40, and a condenser 10. And an evaporator 30 through which the expanded refrigerant is expanded and a refrigerant expanded by the expander 20 cools the cold water.

Compressor 40 is to compress the refrigerant evaporated in the evaporator 30, may be composed of one of a rotary compressor, a scroll compressor, a screw compressor, may be configured to vary the operating capacity, compress the refrigerant in multiple stages Can be configured.

The compressor 40 includes a compressor suction pipe 70 through which the refrigerant evaporated in the evaporator 30 passes through to be sucked into the compressor 40, and a compressor discharge pipe 80 through which the refrigerant discharged from the compressor 40 passes. Connected.

An oil separator 50 may be installed between the compressor 40 and the condenser 10 to separate oil discharged with the refrigerant from the refrigerant when the refrigerant is discharged from the compressor 40.

When the compressor 40 is directly connected to the condenser 10, when the compressor discharge pipe 80 is connected to the condenser 10, and the oil separator 50 is installed between the compressor 40 and the condenser 10, The compressor discharge pipe 80 may be connected to the oil separator 50, and the oil separator 50 may be connected to the condenser 10 and the oil separator-condenser 10 connection pipe 90. Hereinafter, it will be described that the oil separator 50 is installed, but embodiments of the present invention are not limited thereto.

The compressor 40 compresses the refrigerant into a high-temperature / high pressure gaseous refrigerant (hereinafter, referred to as “air refrigerant”) and delivers the refrigerant to the condenser 10.

The condenser 10 is a type of heat exchanger in which the refrigerant compressed by the compressor 40 is condensed. The condenser 10 is generated during the phase change process of the refrigerant while phase-changing the medium / high pressure liquid refrigerant (hereinafter referred to as “liquid refrigerant”) while condensing the high temperature / high pressure refrigerant delivered from the compressor 40. Dissipate heat to the outside

The condenser 10 may be composed of a shell-tube type heat exchanger or a fin-tube type heat exchanger, depending on the type. When the condenser 10 is configured as a shell-tube type heat exchanger, a condensation space for condensing the refrigerant is formed inside the shell, and a cooling water tube through which the cooling water passes is disposed in the condensation space, and the cooling water tube is a cooling tower. Is connected to the cooling water supply source and cooling water pipes (11) (12), and the refrigerant exchanges heat with the cooling water while condensing through the shell.

When the condenser 10 is configured as a fin-tube type heat exchanger, a condenser fan (not shown) installed around the condenser 10 supplies cold air such as outdoor air to the condenser 10 and passes through the tube. Is condensed by heat exchange with cold air such as outdoor air.

Hereinafter, the condenser 10 is described as being implemented as a shell-tube type liquid-type condenser 10 (flooded condenser), but the embodiment of the condenser 10 is not limited thereto. The condenser 10 may be connected to the expander 20 and the condenser 10-expander connection pipe 25.

The expander 20 is to expand the refrigerant condensed in the condenser 10, by expanding the liquid refrigerant condensed at medium temperature / high pressure from the condenser 10 to lower the pressure to easily change the phase of the liquid refrigerant in the evaporator (30) To be possible. The expander 20 may be formed of a capillary tube or electronic expansion valves (EEV), depending on the embodiment.

The evaporator 30 is to evaporate the refrigerant expanded in the expander 20, is connected to the expander 20 and the expander-evaporator connecting pipe 60. The liquid refrigerant introduced into the evaporator 30 is evaporated into the air coolant inside the evaporator 30, and thus, deprives the surrounding heat during the phase change process.

The evaporator 30 is one of the heat exchangers similarly to the condenser 10, and may be implemented as a shell-tube type liquid-type heat exchanger according to an embodiment. The refrigerant introduced into the evaporator 30 is evaporated inside the evaporator 30 and sucked into the compressor suction pipe 70.

The evaporator 30 is connected to a space and a device requiring cold water such as a cooling coil (hereinafter referred to as 'cold water demand place') and cold water pipes 31 and 32, and the cold water circulates through the cold water demand place including the inside of the condenser 10. Cool cold water demand.

The condenser 10 and the evaporator 30 may be formed in the same structure according to the embodiment. The condenser 10 and the evaporator 30 may be implemented by the above-mentioned full-sized heat exchanger. Hereinafter, the condenser 10 is implemented as a fully-loaded condenser, and the evaporator 30 is described as being performed by a fully-packed evaporator, but embodiments are not limited thereto. The condenser 10 shown in FIG. Note that it can be used.

2 is a perspective view of a condenser 10 according to an embodiment of the present invention.

Referring to FIG. 2, the condenser 10 according to an exemplary embodiment of the present invention may include a refrigerant inlet 105 for introducing a high temperature / high pressure refrigerant compressed by the compressor 40 and a refrigerant outlet for introducing the refrigerant. 107 is formed, the heat transfer tube 200, which is provided inside the housing 100 and spaced apart from the refrigerant inlet portion 105 and the cooling fluid for cooling the refrigerant therein, and the refrigerant inlet ( It is provided between the 105 and the heat transfer pipe 200 and disposed adjacent to the coolant inlet 105 to collide with the high-pressure refrigerant injected from the coolant inlet 105 to prevent the refrigerant from directly hitting the heat transfer pipe 200. The first guide 300 and the refrigerant inlet 105 and the first guide 300 to distribute the refrigerant so as to form a flow path with the first guide 300 to bypass the refrigerant to the heat pipe (200) It includes a second guide 400 to flow.

The housing 100 may be integrally formed, and may include a main body 101 and a side plate 103 according to an embodiment. In the housing 100, a coolant inlet 105 through which a coolant flows may be formed. Hereinafter, the refrigerant inlet 105 is formed in the body 101 of the housing 100, but the body 101 is a housing in which the refrigerant inlet 105 is integrally formed as an embodiment of the housing 100. It includes the case formed in 100. In addition, an injection mechanism (not shown) may be further provided to evenly inject the refrigerant introduced into the housing 100 according to the embodiment.

The shape of the housing 100 may be variously implemented according to an embodiment, and hereinafter, the cross section is described as having an elliptical shape, but the shape of the housing 100 is not limited thereto.

The high temperature / high pressure air refrigerant compressed by the compressor 40 flows into the refrigerant inlet 105. Since the air coolant has a state of high temperature / high pressure, when the air coolant is introduced into the housing 100, it may be rapidly introduced at high speed. The coolant inlet 105 may be provided at an upper side of the heat transfer tube 200 to be described later, and the coolant is injected from the coolant inlet 105 and injected at a high pressure toward the heat transfer tube 200 disposed below.

The first guide 300 is provided between the coolant inlet 105 and the heat transfer pipe 200. The first guide 300 may be disposed inside the housing 100 in parallel with the heat transfer pipe 200. The surface formed by the first guide 300 may be a plane perpendicular to the spraying direction of the coolant flowing from the coolant inlet 105. That is, the inflow direction of the coolant flowing from the coolant inlet 105 may be a normal direction with respect to the surface of the first guide 300.

The first guide 300 may be disposed adjacent to the refrigerant inlet 105. Since the coolant injected from the coolant inlet 105 is in a high temperature / high pressure state, when the coolant is directly hit by the heat transfer pipe 200, the heat transfer pipe 200 is damaged by fatigue and thus the reliability of the pipe is reduced, or the contact of the coolant is concentrated. Some parts of the heat transfer pipe 200 may cause a problem of low heat transfer efficiency.

In order to prevent such a problem, the first guide 300 is disposed to be adjacent to the coolant inlet 105, and collides with the coolant injected at a high temperature / high pressure from the coolant inlet 105. As the first guide 300 is disposed adjacent to the coolant inlet 105, the coolant does not directly collide with the heat pipe 200, but instead collides with the first guide 300, and a high-pressure coolant directly passes through the heat pipe 200. Prevent hitting.

In FIG. 2, the first guide 300 is shown in a plate shape extending along the longitudinal direction of the housing 100, but according to the embodiment, the curved surface may be formed, and the surface of the uneven surface may be formed.

The second guide 400 is provided between the refrigerant inlet 105 and the first guide 300. The second guide 400 forms a flow path together with the first guide 300 to flow the coolant introduced from the coolant inlet 105 to the heat transfer pipe 200 disposed below.

Some of the refrigerant introduced into the refrigerant inlet 105 may be reflected by colliding with the first guide 300, and another portion of the refrigerant may not collide with the first guide 300, but may be reflected by the refrigerant inlet 105. It can be dispersed at the edge part. In this case, the second guide 400 is a heat transfer pipe 200 so that the dispersed refrigerant and the refrigerant reflected by colliding with the first guide 300 flows toward the heat transfer pipe 200 without being agglomerated from the upper side of the housing 100. The flow path is formed in the direction toward the direction of the coolant to guide the heat pipe (200).

The second guide 400 may form a flow path together with the first guide 300. The upper portion of the second guide 400 facing the inner surface of the housing 100 forms a flow path so that the refrigerant dispersed at the edge of the coolant inlet 105 faces the heat transfer pipe 200, and the first guide 300. The lower portion of the second guide 400 opposite to the second guide 400 forms a flow path together with the first guide 300 to form a flow path such that the coolant impinged on the first guide 300 flows toward the heat transfer pipe 200. As the second guide 400 forms a flow path together with the first guide 300, the coolant impinged on the first guide 300 may flow to the heat transfer pipe 200.

The flow paths formed by the second guide 400 and the first guide 300 are bypassed by the coolant injected from the coolant inlet 105 and are not immediately injected into the heat transfer pipe 200, but are bypassed and flow into the heat transfer pipe 200. Since the coolant injected from the coolant inlet 105 is not directly injected into the heat transfer pipe 200 by the first guide 300 and the second guide 400, the coolant having a high temperature / high pressure directly flows into the heat transfer pipe 200. It is possible to prevent a problem regarding the reliability of the pipe generated by the injection.

One side 401 of the second guide 400 is disposed toward the refrigerant inlet 105, and the other side 403 of the second guide 400 is disposed toward the heat transfer pipe 200. One side 401 of the second guide 400 is disposed toward the coolant inlet 105 so that a portion of the coolant dispersed in the coolant inlet 105 is formed by the housing 100 and the second guide 400. Into the flow path, a portion of the refrigerant impinged on the first guide 300 is to enter the flow path formed by the first guide 300 and the second guide 400.

 The other side 403 of the second guide 400 is disposed toward the heat transfer pipe 200. As the other side 403 of the second guide 400 is disposed toward the heat transfer tube 200, the refrigerant, the first guide 300, and the first agent that enter the flow path formed by the housing 100 and the second guide 400 are formed. The refrigerant entering the flow path formed by the two guides 400 is allowed to flow to the heat transfer pipe 200.

The heat transfer pipe 200 is provided inside the housing 100. The heat transfer tube 200 may be implemented as a collection of tubes through which a cooling fluid flows, and each tube may be provided in plurality. Each tube may be flowed with other refrigerants such as water or oil as cooling fluids. Hereinafter, the cooling fluid is described as being performed by water, but embodiments of the cooling fluid are not limited thereto.

The heat transfer tube 200 is disposed below the first guide 300 and the second guide 400. The heat transfer pipe 200 is brought into contact with the refrigerant flowing by the first guide 300 and / or the second guide 400 after flowing from the refrigerant inlet 105. When the coolant comes into contact with the heat transfer pipe 200, the cooling fluid flowing inside the heat transfer pipe 200 exchanges with the coolant to cool the coolant to medium temperature / high pressure. The heat transfer pipe 200 is preferably made of a material having excellent heat transfer so that the air refrigerant and the cooling fluid are easily heat exchanged. The coolant cooled to medium temperature / high pressure is liquefied to phase change into a liquid refrigerant, and the liquid refrigerant flows to the bottom of the housing 100, which is the lower side of the heat transfer pipe 200.

The heat transfer pipe 200 is disposed between the first guide 300 and the refrigerant outlet 107 to be described later. As described above, the first guide 300 is disposed above the heat transfer tube 200 to prevent the refrigerant from directly hitting the heat transfer tube 200, and the liquid refrigerant cooled by the heat transfer tube 200 is the refrigerant outlet 107. The heat transfer pipe 200 is disposed above the coolant outlet part 107 so as to fall to the side.

A coolant outlet 107 is formed below the housing 100. The liquid refrigerant cooled by the heat transfer pipe 200 flows out to the refrigerant outlet 107 and is discharged to the condenser 10-expander connection pipe 25. The discharged refrigerant is moved to the expander and flows along the cooling cycle.

3 is a cross-sectional view of a condenser 10 according to another embodiment of the present invention.

Hereinafter, except for the parts described with reference to FIGS. 1 and 2, the following description will focus on differences.

Referring to FIG. 3, a plurality of second guides 400 according to another embodiment of the present invention may be provided and spaced apart from each other. A plurality of second guides 400 may be provided inside the housing 100, and in this case, a flow path is formed between each of the second guides 400.

The plurality of flow paths formed by the plurality of second guides 400 easily guide the coolant to the heat transfer pipe 200 so that the coolant flows smoothly.

The plurality of second guides 400 may be radially disposed around the coolant inlet 105 so that the coolant is dispersed. As the plurality of second guides 400 are disposed radially, each flow path formed by each of the second guides 400 is formed to spread out like a fan blade around the refrigerant inlet 105, and thus the refrigerant inlet ( The refrigerant introduced from 105 and the refrigerant collided with the first guide 300 are efficiently flowed to the heat transfer pipe 200.

4 to 5 are cross-sectional views of a condenser 10 according to further embodiments of the present invention.

Referring to FIG. 4, the second guide 500 according to another embodiment of the present invention may be formed by bending a central portion thereof. That is, the second guide 500 is formed to be curved in a circular arc or gently to smoothly guide the flow of the refrigerant. As the central portion of the second guide 500 is bent, the refrigerant introduced from the refrigerant inlet 105 and the refrigerant impinging on the first guide 300 can be smoothly flowed into the heat transfer pipe 200.

Referring to FIG. 5, the second guide 600 according to another embodiment of the present invention may be formed to be bent to form an edge at the central portion 605. That is, the second guide 600 is bent to form the edge 605, thereby changing the direction of the flow of the refrigerant guided by the second guide 600. In this case, one side of the second guide 600 toward the refrigerant outlet 107 is adjusted to allow the refrigerant introduced from the refrigerant inlet 105 to flow smoothly into the heat transfer pipe 200.

6 is a cross-sectional view of a condenser 10 according to another embodiment of the present invention.

Referring to Figure 6, the second guide 700 according to another embodiment of the present invention is disposed so that one side is fixed to the housing 100 and the other side facing the heat transfer pipe (200). One side of the second guide 700 may be fixed in contact with the inside of the housing 100, and the other side of the second guide 700 may extend in a direction toward the heat transfer tube 200. In this case, the refrigerant collided with the first guide 300 collides or guides again in the second guide 700 so as to flow toward the heat transfer pipe 200. In addition, the refrigerant dispersed in the refrigerant inlet 105 is also impinged or guided by the second guide 700 flows toward the heat transfer pipe 200.

The configuration and method of the embodiments described above may not be limitedly applied, and all or some of the embodiments may be selectively combined so that various modifications can be made.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the specific embodiments described above, but the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

10 condenser 40 compressor
100: housing 400: second guide
300: first guide 200: heat transfer tube
105: refrigerant inlet

Claims (10)

A housing having a refrigerant inlet for introducing refrigerant and a refrigerant outlet for introducing the refrigerant;
A heat transfer tube provided inside the housing, spaced apart from the coolant inlet, and a cooling fluid flowing therein to cool the coolant therein;
A first guide provided between the coolant inlet and the heat transfer tube to disperse the coolant injected from the coolant inlet; And
A second guide provided between the coolant inlet and the first guide to flow the coolant;
Air conditioner comprising a.
The method of claim 1,
One side of the second guide is disposed toward the refrigerant inlet, and the other side of the second guide is disposed toward the heat pipe.
The method of claim 2,
A central portion of the second guide is bent air conditioner is formed.
The method of claim 2,
The central portion of the second guide is bent to form a corner air conditioner is formed.
The method of claim 1,
The second guide is provided with a plurality of air conditioners are each spaced apart from each other.
The method of claim 5,
The plurality of second guides are air conditioners disposed radially around the coolant inlet to distribute the coolant.
The method of claim 1,
The heat pipe is disposed between the first guide and the refrigerant outlet.
The method of claim 1,
The second guide guides the refrigerant to flow toward the heat transfer pipe after the refrigerant collides with the first guide.
The method of claim 1,
The second guide is arranged so that one side is fixed to the housing and the other side toward the heat transfer pipe, the air conditioner to allow the refrigerant impinged by the first guide flows toward the heat transfer pipe.
In an air conditioner comprising an evaporator and a condenser,
The condenser,
A housing having a coolant inlet through which a high temperature and high pressure refrigerant compressed by a compressor flows in, and a coolant outlet through which the introduced coolant flows out;
A heat transfer tube provided inside the housing, spaced apart from the coolant inlet, and a cooling fluid flowing therein to cool the coolant therein;
A first guide disposed adjacent to the refrigerant inlet to collide with the high-pressure refrigerant flowing from the refrigerant inlet; And
A second guide provided between the coolant inlet and the first guide to form a flow path together with the first guide to bypass the coolant to the heat pipe;
Air conditioner comprising a.

Images