KR101914499B1 - Air conditioner - Google Patents

Abstract

An air conditioner according to an embodiment of the present invention includes a housing having a refrigerant inlet portion through which a refrigerant flows and a refrigerant outlet portion through which refrigerant flows in, a housing disposed inside the housing and spaced apart from the refrigerant inlet portion, A first guide provided between the refrigerant inlet and the heat transfer tube for distributing the refrigerant sprayed from the refrigerant inlet, and a second guide provided between the refrigerant inlet and the first guide, And a second guide for guiding the second guide.

Description

Air conditioner

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner, and more particularly, to an air conditioner provided with a blanket type condenser for preventing a high temperature / high pressure refrigerant from being directly blown to a heat transfer tube,

The air conditioner is disposed in a room such as a room, a living room, an office or a business store, and is capable of maintaining a comfortable indoor environment by controlling the temperature, humidity, cleanliness and airflow of the air.

The air conditioner is generally provided with a compressor, an expansion valve, and a heat exchanger, and the heat exchanger may include an indoor heat exchanger and an outdoor heat exchanger depending on the type of the air conditioner. In a chiller-type air conditioner or the like, the high-temperature / high-pressure refrigerant compressed by the compressor can be cooled from the condenser to the middle temperature / high pressure, if necessary.

In a chiller-type air conditioner, when a high-temperature / high-pressure refrigerant compressed in a compressor is cooled to a middle temperature / high pressure in a condenser, a cooling fluid flows through a heat transfer pipe of the condenser, And can be carried out with a flooded condenser for heat exchange.

In this case, when the high-temperature / high-pressure refrigerant is injected directly to the heat transfer tube, the heat transfer tube may be damaged by the pressure of the refrigerant. Further, the refrigerant is intensively injected only to a part of the heat transfer tube, and the heat exchange efficiency between the refrigerant and the cooling fluid is lowered.

A problem to be solved by the present invention is to provide an air conditioner which prevents a high temperature / high pressure refrigerant from being struck directly on a heat transfer tube and is uniformly sprayed to the entire heat transfer tube.

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.

According to an aspect of the present invention, there is provided an air conditioner comprising:

A housing having a refrigerant inlet portion through which the refrigerant flows and a refrigerant outlet portion through which the introduced refrigerant flows out; A heat transfer tube disposed inside the housing and spaced apart from the refrigerant inflow portion and having a cooling fluid flowing therein for cooling the refrigerant; A first guide disposed between the refrigerant inlet and the heat transfer tube to distribute the refrigerant injected from the refrigerant inlet; A second guide provided between the refrigerant inlet and the first guide for flowing the refrigerant; .

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

According to the air purifier of the present invention, there are one or more of the following effects.

First, the first guide prevents the high temperature / high pressure refrigerant from directly striking the heat transfer tube, and the second guide collides with the refrigerant dispersed in the refrigerant inlet and the first guide to guide the reflected refrigerant in the direction toward the heat transfer tube, Thereby activating the flow of the refrigerant.

Second, since the first guide is disposed adjacent to the refrigerant inflow portion and collides with the refrigerant introduced from the refrigerant inflow portion, the refrigerant of high temperature / high pressure directly strikes the heat transfer tube to damage the heat transfer tube due to fatigue, Thereby preventing the heat transfer efficiency from deteriorating due to a portion of the heat transfer pipe.

Thirdly, a flow path is formed with the second guide and the first guide so that the refrigerant injected from the refrigerant inflow portion is bypassed without being directly injected into the heat transfer pipe, and flows to the heat transfer pipe. Thus, the high temperature / high pressure refrigerant is directly injected into the heat transfer pipe ≪ / RTI >

Fourth, since the plurality of second guides form a plurality of flow paths, the coolant can be easily guided to the heat transfer pipe, thereby facilitating the flow of the coolant.

Fifth, since the plurality of second guides are radially arranged, each of the flow paths formed by the respective second guides is formed so as to spread like a fan on the refrigerant inflow portion, and the refrigerant introduced from the refrigerant inflow portion and the first guide Thereby efficiently flowing the refrigerant impinged on the heat transfer pipe.

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 view 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 sectional views of a condenser according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter 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 the specification.

Hereinafter, the air purifier according to the present invention will be described in detail with reference to the 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 a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

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

1, an air conditioner according to an embodiment of the present invention includes a compressor 40 for compressing refrigerant, a condenser 10 for condensing the refrigerant compressed in the compressor 40, And an evaporator 30 in which the refrigerant expanded in the inflator 20 cools the cold water.

The compressor (40) compresses the refrigerant evaporated in the evaporator (30). The compressor (40) can be constituted of a rotary compressor, a scroll compressor and a screw compressor, and can be configured to vary the operation capacity. Lt; / RTI >

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

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

When the compressor 40 is directly connected to the condenser 10 and 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 is connected to the oil separator 50 and the oil separator 50 can be connected to the condenser 10 and the oil separator-condenser 10 connection pipe 90. Hereinafter, the oil separator 50 will be described, but the embodiment of the present invention is not limited thereto.

The compressor 40 compresses the refrigerant into a high-temperature / high-pressure gaseous refrigerant (hereinafter referred to as "gaseous refrigerant") and transfers it to the condenser 10.

The condenser 10 is a kind of heat exchanger in which the refrigerant compressed in the compressor 40 is condensed. The condenser 10 is configured to perform a phase change to a middle / high-pressure liquid phase refrigerant (hereinafter referred to as "liquid refrigerant") while condensing the high temperature / high pressure refrigerant transferred from the compressor 40, Heat is dissipated to the outside.

The condenser 10 may be a shell-tube type heat exchanger or a fin-tube type heat exchanger depending on the type of the condenser. When the condenser 10 is formed as a shell-and-tube type heat exchanger, a condensation space in which the refrigerant can be condensed is formed inside the shell, a cooling water tube through which the cooling water passes is disposed, And the cooling water pipes 11 and 12. The refrigerant passes through the shell and is heat-exchanged with the cooling water to be condensed.

When a condenser 10 is constructed as a fin-tube type heat exchanger, a condensing fan (not shown) provided around the condenser 10 supplies cold air such as outdoor air to the condenser 10, Exchanges heat with cold air such as outdoor air and is condensed.

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

The inflator 20 expands the refrigerant condensed in the condenser 10 and expands the liquid refrigerant condensed at a middle temperature and a high pressure from the condenser 10 to lower the pressure so that the liquid refrigerant can easily flow in the evaporator 30 . The inflator 20 may comprise a capillary tube or electronic expansion valves (EEV), according to embodiments.

The evaporator 30 is connected to the inflator 20 and the inflator-evaporator connecting pipe 60 as the refrigerant expanded in the inflator 20 is evaporated. The liquid refrigerant flowing into the evaporator 30 is evaporated into the refrigerant in the evaporator 30, and the ambient heat is taken away during the phase change to the refrigerant.

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

The evaporator 30 is connected to a space and an apparatus requiring cold water such as a cooling coil and a cold water pipe 31 and a cold water pipe 32. The cold water circulates through the cold water consumer including the inside of the condenser 10 Cools cold water consumers.

The condenser 10 and the evaporator 30 may have the same structure according to the embodiment. The condenser 10 and the evaporator 30 may be implemented as the above-described monolithic heat exchanger. Hereinafter, it is explained that the condenser 10 is implemented as a monolithic condenser and the evaporator 30 is implemented as a monolithic evaporator. However, the embodiment is not limited thereto, and the condenser 10 shown in FIG. Can be used.

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

2, a condenser 10 according to an embodiment of the present invention includes a refrigerant inlet 105 through which a high-temperature / high-pressure refrigerant compressed in the compressor 40 flows, and a refrigerant outlet through which refrigerant flows A heat transfer tube 200 disposed inside the housing 100 and spaced apart from the refrigerant inlet 105 and through which a cooling fluid for cooling the refrigerant flows; 105 and the heat transfer pipe 200 and is disposed adjacent to the refrigerant inlet 105 to collide with the high pressure refrigerant injected from the refrigerant inlet 105 to prevent the refrigerant from directly hitting the heat transfer tube 200 The first guide 300 is provided between the coolant inlet 105 and the first guide 300 and forms a flow path together with the first guide 300 to bypass the coolant to the heat transfer tube 200. [ And a second guide (400) for flowing the fluid.

The housing 100 may be integrally formed, and may include a main body 101 and a side plate 103 according to an embodiment. The housing 100 may be formed with a coolant inflow portion 105 through which the coolant flows. The main body 101 includes a housing 100 in which a coolant inlet 105 is formed integrally with the housing 100 and a coolant inlet port 105 is formed in the main body 101 of the housing 100, (100). Further, according to the embodiment, it is possible to further include a jetting mechanism (not shown) for uniformly injecting the refrigerant introduced into the housing 100.

The shape of the housing 100 may be variously modified according to the embodiment. Hereinafter, the housing 100 will be described in the form of an elliptical cylindrical shape, but the shape of the housing 100 is not limited thereto.

The high-temperature / high-pressure refrigerant compressed by the compressor (40) flows into the refrigerant inlet (105). Since the gaseous refrigerant has a high temperature / high pressure state, it can flow rapidly into the housing 100 when it flows into the housing 100. The coolant inflow portion 105 may be provided on the upper side of the heat transfer tube 200 to be described later. The coolant flows into the coolant inflow portion 105 and is injected at a high pressure toward the heat transfer tube 200 disposed at the lower side.

The first guide 300 is provided between the refrigerant inflow portion 105 and the heat transfer pipe 200. The first guide 300 may be disposed inside the housing 100 in parallel with the heat transfer tube 200. The surface formed by the first guide 300 may be a plane perpendicular to the direction of injection of the refrigerant introduced from the refrigerant inlet 105. That is, the inflow direction of the coolant introduced from the coolant inflow section 105 may be a normal direction to the surface of the first guide 300. The first guide 300 has a width larger than the inner diameter of the refrigerant inflow portion 105.

The first guide 300 may be disposed adjacent to the refrigerant inlet 105. Since the refrigerant injected from the refrigerant inflow portion 105 is in a high temperature / high pressure state, if the refrigerant is struck directly on the heat transfer pipe 200, the heat transfer pipe 200 is damaged by fatigue and the reliability of the pipe is deteriorated. There is a problem that the heat transfer efficiency is lowered due to a part of the heat transfer pipe 200.

In order to prevent such a problem, the first guide 300 is disposed to be adjacent to the refrigerant inflow portion 105, and collides with the refrigerant injected at the high temperature / high pressure from the refrigerant inflow portion 105. The first guide 300 is disposed adjacent to the refrigerant inlet 105 so that the refrigerant does not directly hit the heat transfer tube 200 but collides with the first guide 300 so that the high pressure refrigerant flows directly into the heat transfer tube 200 Prevent hitting.

In FIG. 2, the first guide 300 is shown as a plate extending along the longitudinal direction of the housing 100, but curved surfaces may be formed according to the embodiment, and the surface of the concave and convex portions may be formed.

The second guide 400 is provided between the refrigerant inlet 105 and the first guide 300. The second guide 400 is disposed on both left and right sides of the coolant inflow section 105 with one side facing the coolant inflow section 105 being spaced apart from each other so as to have an interval larger than the inner diameter of the coolant inflow section 105 Respectively. The second guide 400 forms a flow path together with the first guide 300 to flow the refrigerant introduced from the refrigerant inflow part 105 to the heat transfer tube 200 disposed at the lower side.

A part of the refrigerant flowing into the refrigerant inlet 105 may be reflected by the first guide 300 and may be reflected by the first guide 300 and some of the other refrigerant may not be impinged on the first guide 300, It can be dispersed at the edge portion. In this case, the second guide 400 is disposed in the heat transfer pipe 200 so that the dispersed refrigerant and the refrigerant reflected by the first guide 300 are reflected toward the heat transfer pipe 200 without being gathered on the upper side of the housing 100, To guide the refrigerant toward the heat transfer pipe (200).

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

The refrigerant injected from the refrigerant inflow portion 105 is not directly injected into the heat transfer tube 200 but is bypassed and flows to the heat transfer tube 200 through the flow path formed by the second guide 400 and the first guide 300. [ The refrigerant injected from the refrigerant inlet 105 is not directly injected into the heat transfer tube 200 by the first guide 300 and the second guide 400 so that the high temperature and high pressure refrigerant flows directly to the heat transfer tube 200 It is possible to prevent problems related to the reliability of piping generated by spraying.

One side 401 of the second guide 400 is disposed toward the coolant inlet 105 and the other side 403 of the second guide 400 is disposed toward the heat transfer tube 200. One side 401 of the second guide 400 is disposed toward the refrigerant inlet 105 so that a part of the refrigerant dispersed in the refrigerant inlet 105 is formed by the housing 100 and the second guide 400 So that a part of the refrigerant impinging on the first guide 300 is introduced into 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. The other side 403 of the second guide 400 is disposed toward the heat transfer pipe 200 so that the refrigerant entering the flow path formed by the housing 100 and the second guide 400, 2 guides 400 to flow into the heat transfer tube 200. [0051]

A heat transfer tube 200 is provided inside the housing 100. The heat transfer tubes 200 may be implemented as a set of tubes through which the cooling fluid flows, and a plurality of tubes may be provided. Each tube may be flowed with other refrigerants, such as water or oil, which is a cooling fluid. Hereinafter, the cooling fluid is described as being implemented with water, but the embodiment of the cooling fluid is not limited thereto.

The heat transfer tube 200 is disposed below the first guide 300 and the second guide 400. The heat transfer tube 200 is introduced into the refrigerant inlet 105 and then is in contact with the refrigerant flowed by the first guide 300 and / or the second guide 400. When the refrigerant comes into contact with the heat transfer pipe 200, the cooling fluid flowing in the heat transfer pipe 200 and the refrigerant undergo heat exchange, and the refrigerant is cooled to a middle temperature / high pressure. It is preferable that the heat transfer tube 200 is made of a material having excellent heat transfer so that the gas refrigerant and the cooling fluid can be heat-exchanged. The refrigerant cooled at the middle temperature / high pressure is liquidated and changed into liquid refrigerant, and the liquid refrigerant flows to the bottom of the housing 100 which is the lower side of the heat transfer tube 200.

The heat transfer tube 200 is disposed between the first guide 300 and the refrigerant outflow portion 107 described later. The first guide 300 is disposed on the upper side of the heat transfer tube 200 to prevent the refrigerant from directly hitting the heat transfer tube 200 and to prevent the liquid refrigerant cooled by the heat transfer tube 200 from flowing to the refrigerant outflow portion 107 The heat transfer tube 200 is disposed above the refrigerant outlet portion 107. [

A refrigerant outflow portion 107 is formed on the lower side of the housing 100. The liquid refrigerant cooled by the heat transfer tube 200 flows out to the refrigerant outflow portion 107 and is discharged to the condenser 10 and the inflator connecting pipe 25. The discharged refrigerant is moved to the inflator and flows in accordance with the cooling cycle.

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

3 and below, the differences will be mainly described, except for the portions described in Figs.

Referring to FIG. 3, the second guide 400 according to another embodiment of the present invention may include a plurality of second guides 400 disposed on left and right sides of the refrigerant inlet, respectively, and may be 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 the second guides 400.

The plurality of channels formed by the plurality of second guides (400) facilitates the guiding of the refrigerant to the heat transfer tube (200) to smooth the flow of the refrigerant.

One end of the second guide 400 faces the coolant inlet 105 and the other end faces the plurality of heat transfer tubes 200 so that the refrigerant is dispersed. As shown in FIG. As the plurality of second guides 400 are arranged radially, each of the channels formed by the respective second guides 400 is formed so as to spread like a fan on the refrigerant inlet 105, 105 and refrigerant impinging on the first guide 300 are efficiently flowed to the heat transfer pipe 200. The plurality of second guides 400 provided on both the left and right sides of the refrigerant inflow section 105 are disposed at the opposite sides of the refrigerant inflow section 105 so as to have an interval larger than the inner diameter of the refrigerant inflow section 105 Respectively.

4 to 5 are sectional views of a condenser 10 according to still another embodiment of the present invention.

Referring to FIG. 4, the second guide 500 according to another embodiment of the present invention may be curved at a central portion thereof. That is, the second guide 500 is formed by an arc or a gently curved shape to smoothly guide the flow of the refrigerant. The second guide 500 is curved so that the coolant introduced from the coolant inlet 105 and the coolant impinging on the first guide 300 can smoothly flow into the heat transfer tube 200.

Referring to FIG. 5, the second guide 600 according to another exemplary embodiment of the present invention may be formed by bending the center portion 605 so as to have an edge. That is, one second guide 600 is bent so as to form an edge 605, and the flow direction of the refrigerant guided by the second guide 600 is changed. In this case, one side of the second guide 600 facing the refrigerant outflow portion 107 is adjusted to allow the refrigerant introduced from the refrigerant inflow portion 105 to smoothly flow into the heat transfer tube 200.

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

Referring to FIG. 6, the second guide 700 according to another embodiment of the present invention is disposed such that one side is fixed to the housing 100 and the other side is directed to the heat transfer tube 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 impinging on the first guide 300 is again collided or guided by the second guide 700 to flow toward the heat transfer tube 200. Further, the refrigerant dispersed in the refrigerant inflow portion 105 is also collided or guided by the second guide 700 and flows toward the heat transfer tube 200.

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

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 exemplary embodiments, but, on the contrary, It should be understood that various modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.

10: condenser 40: compressor
100: housing 400: second guide
300: first guide 200: heat transfer pipe
105: Refrigerant inlet portion

Claims (10)

A housing having a refrigerant inlet portion through which the refrigerant flows and a refrigerant outlet portion through which the introduced refrigerant flows out;
A plurality of heat transfer tubes disposed inside the housing and spaced apart from the refrigerant inflow section and through which a cooling fluid for cooling the refrigerant flows;
A first guide disposed between the refrigerant inlet and the heat transfer tube to distribute the refrigerant injected from the refrigerant inlet; And
A second guide provided between the refrigerant inlet and the first guide for flowing the refrigerant;
Lt; / RTI >
Wherein the plurality of heat transfer tubes are disposed below the first guide and the second guide,
Wherein the first guide has a width larger than an inner diameter of the refrigerant inflow portion,
The second guide is disposed radially on both left and right sides of the refrigerant inflow portion with one side of the second guide facing the refrigerant inflow portion and the other side facing the plurality of heat transfer tubes so that the refrigerant is dispersed,
Wherein the second guide is disposed on both left and right sides of the refrigerant inflow portion,
The plurality of second guides provided on the left side and the plurality of second guides provided on the right side with respect to the coolant inflow portion are spaced apart from each other such that the one side has an interval larger than the inner diameter of the coolant inflow portion,
The upper portion of the second guide forms a flow path such that the refrigerant dispersed at the edge of the refrigerant inflow portion faces the plurality of heat transfer tubes,
And a lower portion of the second guide forms a flow path together with the first guide so that the refrigerant impinged by the first guide faces the plurality of heat transfer tubes.
delete The method according to claim 1,
And the central portion of the second guide is curved.
The method according to claim 1,
And the central portion of the second guide is bent so as to form an edge.
delete delete The method according to claim 1,
And the plurality of heat transfer tubes are disposed between the first guide and the refrigerant outlet.
delete delete delete

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