Gas-liquid separator and air conditioning system

Abstract

The utility model relates to the technical field of refrigeration, in particular to a gas-liquid separator and an air conditioning system. The gas-liquid separator comprises a first barrel, a second barrel and a silencing plate, and the silencing plate is arranged at one end of the first barrel and connected with the first barrel. The second barrel and the first barrel are arranged in a split mode, and the second barrel is arranged at the end, close to the silencing plate, of the first barrel and connected with the first barrel. The silencing plate and the first barrel are of an integrated spinning forming structure. According to the gas-liquid separator and the air conditioning system provided by the invention, the problem that the assembly difficulty is relatively high when a silencing plate is mounted on an existing gas-liquid separator is solved.

Description

Technical Field

[0001] The present application relates to the field of refrigeration technology, and in particular to a gas-liquid separator and an air-conditioning system. Background Art

[0002] In air conditioning systems, a gas-liquid separator is often installed between the evaporator and the compressor to separate the liquid refrigerant and the gaseous refrigerant entering the gas-liquid separator to prevent the liquid refrigerant from flowing into the compressor and causing liquid hammer. In related technologies, a muffler is usually installed in the gas-liquid separator to prevent the noise caused by the refrigerant entering the gas-liquid separator and impacting the inner wall.

[0003] However, the conventional gas-liquid separator cylinder is usually formed by integral processing, which makes it difficult to install the internal silencer plate. If the gas-liquid separator cylinder is set as a split structure, multiple positioning welding is often required during the welding process of the silencer plate and the inside of the gas-liquid separator cylinder, which is relatively cumbersome. Utility Model Content

[0004] Based on this, it is necessary to provide a gas-liquid separator and an air conditioning system to solve the problem of high difficulty in assembling the silencer plate when installing the existing gas-liquid separator.

[0005] The present application provides a gas-liquid separator, which includes a first cylinder, a second cylinder and a silencer plate, wherein the silencer plate is arranged at one end of the first cylinder and connected to the first cylinder; the second cylinder and the first cylinder are arranged separately, and the second cylinder is arranged at one end of the first cylinder close to the silencer plate and connected to the first cylinder; wherein the silencer plate and the first cylinder are an integral spin-formed structure.

[0006] In one embodiment, the second cylinder includes a main body, a connecting part, and a flared part connecting the main body and the connecting part, and the cross-sectional area of ​​the flared part gradually increases along the axial direction of the gas-liquid separator and from the main body to the connecting part; wherein the connecting part is located at the outer periphery of the first cylinder and connected to the first cylinder, and the end of the first cylinder is in abutment with the inner wall of the flared part. It can be understood that such a configuration can effectively improve the assembly efficiency of the first cylinder and the second cylinder.

[0007] In one embodiment, the outer surface of the first cylinder is provided with an annular step, the second cylinder is sleeved on the annular step, and one end of the second cylinder is stopped on the step surface of the annular step. It can be understood that such a setting can achieve a positioning effect between the first cylinder and the second cylinder.

[0008] In one embodiment, the outer side surfaces of the first cylinder and the second cylinder are arranged flush with each other. It can be understood that such an arrangement can ensure the flatness of the outer surface of the gas-liquid separator.

[0009] In one embodiment, the first cylinder and the second cylinder are fixed by laser welding, double-contact welding or argon arc welding. It can be understood that such a setting can achieve a reliable connection between the first cylinder and the second cylinder and reduce the cost of welding.

[0010] In one embodiment, an air outlet is provided at one end of the second cylinder away from the first cylinder, a through hole is provided on the muffler, and the gas-liquid separator further comprises an air outlet pipe, one end of the air outlet pipe passes through the through hole and is accommodated in the first cylinder, and the other end extends out of the second cylinder through the air outlet, wherein the aperture of the through hole is larger than the outer diameter of the air outlet pipe. It is understandable that such a configuration can keep the liquid refrigerant in the gas-liquid separator and allow the gaseous refrigerant to be smoothly discharged to the compressor.

[0011] In one embodiment, the vertical distance D between the hole wall of the through hole and the outer wall of the air outlet pipe satisfies 2mm≤D≤9mm. It can be understood that such a setting can achieve the silencing effect without affecting the circulation of the liquid.

[0012] In one embodiment, the air outlet pipe is an integrally formed structure, and / or the air outlet pipe is an iron pipe. It is understandable that such a configuration is conducive to further improving assembly efficiency and reducing costs.

[0013] In one embodiment, an air inlet is provided at one end of the first cylinder away from the muffler plate, and the gas-liquid separator further comprises an air inlet pipe and a filter assembly, the air inlet pipe is connected to the air inlet, a portion of the filter assembly is located in the air inlet pipe, and another portion of the filter assembly is located in the first cylinder and faces the pipe opening of the air outlet pipe located in the first cylinder, and the filter assembly is spaced apart from the air outlet pipe. It is understandable that such an arrangement can improve the safety of the compressor.

[0014] The present application also provides an air-conditioning system, which includes the gas-liquid separator described in any one of the above embodiments.

[0015] Compared with the prior art, the gas-liquid separator and air-conditioning system provided by the present application, by configuring the gas-liquid separator as a first cylinder and a second cylinder that are separately configured, and directly spinning the silencer plate with the first cylinder as an integral unit, reduces the steps of separately assembling the silencer plate and the first cylinder, thereby reducing the difficulty of assembling the silencer plate. Moreover, during the entire assembly process of the gas-liquid separator, it is only necessary to ensure that the first cylinder and the second cylinder are positioned once to achieve installation, thereby greatly improving the overall assembly efficiency of the gas-liquid separator. At the same time, compared with the gas-liquid separator of the traditional tensile structure, the spinning process can effectively improve the structural strength of the first cylinder and the silencer plate, thereby ensuring the reliability of the gas-liquid separator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A schematic diagram of the structure of a gas-liquid separator according to an embodiment of the present application;

[0018] Figure 2 A cross-sectional view of a gas-liquid separator according to an embodiment of the present application;

[0019] Figure 3 A perspective view of a first cylinder according to an embodiment of the present application.

[0020] The symbols in the figure mean the following:

[0021] 100, gas-liquid separator; 10, first cylinder; 101, air inlet; 20, second cylinder; 201, air outlet; 21, main body; 22, connecting part; 23, expanding part; 30, silencer; 301, through hole; 40, air inlet pipe; 50, air outlet pipe; 60, filter assembly. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0023] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0025] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are in contact indirectly through an intermediate medium. Moreover, a first feature being “above”, “above”, or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0027] In air conditioning systems, a gas-liquid separator is often installed between the evaporator and the compressor to separate the liquid refrigerant and the gaseous refrigerant entering the gas-liquid separator to prevent the liquid refrigerant from flowing into the compressor and causing liquid hammer. In related technologies, a muffler is usually installed in the gas-liquid separator to prevent the noise caused by the refrigerant entering the gas-liquid separator and impacting the inner wall.

[0028] However, the conventional gas-liquid separator cylinder is usually formed by integral processing, which makes it difficult to install the internal silencer plate. If the gas-liquid separator cylinder is set as a split structure, multiple positioning welding is often required during the welding process of the silencer plate and the inside of the gas-liquid separator cylinder, which is relatively cumbersome.

[0029] See also Figure 1-Figure 3 In order to solve the problem of high assembly difficulty when installing a silencer plate on an existing gas-liquid separator, the present application provides a gas-liquid separator 100. The gas-liquid separator 100 includes a first cylinder 10, a second cylinder 20 and a silencer plate 30, wherein the silencer plate 30 is disposed at one end of the first cylinder 10 and connected to the first cylinder 10. The second cylinder 20 and the first cylinder 10 are separately disposed, wherein the second cylinder 20 is disposed at one end of the first cylinder 10 close to the silencer plate 30, and one end of the second cylinder 20 is sleeved on the outer periphery of the first cylinder 10 and connected to the first cylinder 10. The silencer plate 30 and the first cylinder 10 are an integral spin-formed structure.

[0030] The present application reduces the steps of assembling the silencer plate 30 and the first cylinder 10 separately by configuring the gas-liquid separator 100 as a first cylinder 10 and a second cylinder 20, and directly spin-forming the silencer plate 30 integrally with the first cylinder 10, thereby reducing the difficulty of assembling the silencer plate 30. Moreover, during the entire assembly process of the gas-liquid separator 100, it is only necessary to ensure that the first cylinder 10 and the second cylinder 20 are positioned once to achieve installation, thereby greatly improving the overall assembly efficiency of the gas-liquid separator 100. At the same time, compared with the gas-liquid separator 100 with a traditional tensile structure, the spinning process can effectively improve the structural strength of the first cylinder 10 and the silencer plate 30, thereby ensuring the reliability of the gas-liquid separator 100.

[0031] As a preferred solution, the muffler plate 30 is vertically arranged with respect to the side wall of the first cylinder 10, that is, the muffler plate 30 extends in a flat plate shape. However, the present invention is not limited thereto. In other embodiments, the muffler plate 30 and the side wall of the first cylinder 10 may also be arranged in a large-angle conical shape, as long as the same muffler effect can be achieved and the refrigerant will not accumulate in the side seam of the muffler plate 30.

[0032] Furthermore, if Figure 1-Figure 3 As shown, an air inlet 101 is provided at one end of the first cylinder 10 away from the muffler plate 30, and the gas-liquid separator 100 further comprises an air inlet pipe 40, which is inserted into and connected to the air inlet 101, and is used to pass the refrigerant into the gas-liquid separator 100, so as to facilitate gas-liquid separation of the refrigerant. Specifically, the air inlet pipe 40 is welded and fixed to the first cylinder 10.

[0033] It should be noted that the air inlet 101 can be formed together with the first cylinder 10 during spin forming, thereby reducing the number of processing steps and improving processing efficiency.

[0034] Furthermore, since the refrigerant is divided into gaseous refrigerant and liquid refrigerant after entering the gas-liquid separator 100, in order to keep the liquid refrigerant in the gas-liquid separator 100 and discharge the gaseous refrigerant to the compressor smoothly, in one embodiment, Figure 2As shown, an air outlet 201 is provided at one end of the second cylinder 20 away from the first cylinder 10, and a through hole 301 is provided on the muffler plate 30. The gas-liquid separator 100 also includes an air outlet pipe 50, one end of which is penetrated by the through hole 301 and accommodated in the first cylinder 10, and the other end of the air outlet pipe 50 extends out of the second cylinder 20 through the air outlet 201 for connecting to a compressor.

[0035] By extending the air outlet pipe 50 into the first cylinder 10, the gaseous refrigerant can smoothly enter the air outlet pipe 50 from the end of the air outlet pipe 50 close to the air inlet pipe 40 and be discharged from the air outlet pipe 50, while the liquid refrigerant will gather at a position close to the air outlet 201 in the gas-liquid separator 100 to stay away from the connecting port of the air outlet pipe 50, thereby effectively preventing the liquid refrigerant from flowing from the air outlet pipe 50 into the compressor and causing liquid hammer, thereby greatly improving the safety of the compressor.

[0036] Specifically, in one embodiment, the aperture of the through hole 301 is larger than the outer diameter of the outlet pipe 50 , so that the liquid refrigerant can flow from the first cylinder 10 into the second cylinder 20 through the gap between the outlet pipe 50 and the side wall of the through hole 301 , thereby making full use of the internal space of the gas-liquid separator 100 .

[0037] Among them, the vertical distance D between the hole wall of the through hole 301 and the outer wall of the air outlet pipe 50 satisfies 2mm≤D≤9mm. In this way, the silencing effect can be met without affecting the circulation of the liquid. If D>9mm, the distance between the hole wall of the through hole 301 and the air outlet pipe 50 is large, which will reduce the silencing effect of the silencer plate 30. If D<2mm, the distance between the hole wall of the through hole 301 and the air outlet pipe 50 is small, which will increase the difficulty of the flow of the separated liquid on the one hand, and on the other hand, it will also increase the difficulty of installing the air outlet pipe 50, and there is a risk that the air outlet pipe 50 is installed crookedly and contacts the silencer plate 30, thereby generating noise.

[0038] Optionally, the vertical distance D between the hole wall of the through hole 301 and the outer wall of the air outlet pipe 50 may be 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm or 9 mm, etc., which are not listed here one by one.

[0039] In one embodiment, the air inlet pipe 40 can be welded to the air inlet 101 of the first cylinder 10 by flame welding, and similarly, the air outlet pipe 50 can be welded to the air outlet 201 of the second cylinder 20 by flame welding. The welding method is simple and can reduce welding costs.

[0040] In order to prevent impurities in the refrigerant from entering the gas-liquid separator 100 and flowing into the compressor, in one embodiment, Figure 2As shown, the gas-liquid separator 100 further includes a filter assembly 60, which is installed at the air inlet 101. Specifically, part of the filter assembly 60 is located at the air inlet pipe 40, and the other part of the filter assembly 60 is located at the first cylinder 10 and directly faces the pipe opening of the air outlet pipe 50 located in the first cylinder 10, and the filter assembly 60 is spaced from the air outlet pipe 40. In this way, the probability of impurities entering the compressor through the air outlet pipe 50 and causing damage to the compressor is effectively reduced, thereby improving the safety of the compressor.

[0041] Of course, in other embodiments, the filter assembly 60 may also be installed in the air intake pipe 40, or in the first cylinder 10, as long as the same filtering effect can be achieved.

[0042] In one embodiment, the gas outlet pipe 50 is an integrally formed structure. Thus, compared with the existing split pipe structure provided at the inner and outer sections of the gas-liquid separator 100, this embodiment can reduce the number of parts, thereby further reducing the welding process, which is conducive to further improving the assembly efficiency.

[0043] In one embodiment, the air outlet pipe 50 is configured as an iron pipe, that is, the present application greatly reduces the usage of copper in the air outlet pipe 50, effectively reducing the cost while ensuring the performance.

[0044] In one embodiment, if Figure 2 As shown, the second cylinder 20 includes a main body 21, a connecting portion 22, and a flared portion 23 connecting the main body 21 and the connecting portion 22. Along the axial direction of the gas-liquid separator 100, and in the direction from the main body 21 to the connecting portion 22, the cross-sectional area of ​​the flared portion 23 gradually increases. Among them, the end of the first cylinder 10 is abutted against the inner wall of the flared portion 23, that is, the inner wall of the flared portion 23 can stop at the end of the first cylinder 10 to prevent the first cylinder 10 from moving toward the main body 21.

[0045] It is understandable that the flared portion 23 has a positioning effect on the installation of the first barrel 10 , which is beneficial to the subsequent fixed connection, thereby effectively improving the assembly efficiency of the first barrel 10 and the second barrel 20 .

[0046] Furthermore, in one embodiment, the connection portion 22 is sleeved on the outer circumference of the first cylinder 10 and connected to the first cylinder 10 . It can be understood that the connection portion 22 protrudes from the outer side surface of the first cylinder 10 along the radial direction of the gas-liquid separator 100 .

[0047] In the related structure, a fixing ring is sleeved on the outer circumference of the gas-liquid separator 100, and the gas-liquid separator 100 is installed in the air-conditioning system, such as the outer shell of the compressor, through the fixing ring. In this embodiment, by providing a connecting portion 22 protruding from the outer surface of the first cylinder 10, the connecting portion 22 can replace the fixing ring in the related structure to achieve fixed installation of the gas-liquid separator 100 in the air-conditioning system, which is conducive to further reducing the number of parts, reducing material costs, and improving the assembly efficiency of the gas-liquid separator 100.

[0048] In another embodiment, an annular step (not shown) is provided on the outer surface of the first cylinder 10, the second cylinder 20 is sleeved on the annular step, and one end of the second cylinder 20 stops on the step surface of the annular step. It should be noted that the annular step can be formed by being recessed inward from the side circumferential wall of the end of the first cylinder 10, or by being recessed inward radially from the lower end surface of the muffler plate 30.

[0049] In this way, the positioning effect between the first barrel 10 and the second barrel 20 can also be achieved, thereby improving the assembly efficiency of the first barrel 10 and the second barrel 20 and ensuring the reliability during subsequent connection.

[0050] Furthermore, in one embodiment, when the second cylinder 20 is sleeved on the annular step, the outer side surfaces of the first cylinder 10 and the second cylinder 20 are flush. In this way, the flatness of the outer surface of the gas-liquid separator 100 can be ensured, and the aesthetics of the gas-liquid separator 100 can be improved. At this time, the gas-liquid separator 100 can be fixedly installed in the air conditioning system using a fixing ring.

[0051] In one embodiment, the first cylinder 10 and the second cylinder 20 are fixed by laser welding, double welding or argon arc welding. In this way, the connection between the first cylinder 10 and the second cylinder 20 is simple, the first cylinder 10 and the second cylinder 20 can be reliably connected, and the traditional furnace welding process can be eliminated, thereby greatly reducing the cost of welding.

[0052] The present application also provides an air-conditioning system, which includes the gas-liquid separator 100 described in any one of the above embodiments.

[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A gas-liquid separator, characterized in that: It comprises a first cylinder (10), a second cylinder (20) and a sound-absorbing plate (30), wherein the sound-absorbing plate (30) is arranged at one end of the first cylinder (10) and connected to the first cylinder (10); The second cylinder (20) and the first cylinder (10) are arranged separately, and the second cylinder (20) is arranged at one end of the first cylinder (10) close to the muffler plate (30) and connected to the first cylinder (10); Wherein, the silencer plate (30) and the first cylinder (10) are an integral spin-formed structure.

2. The gas-liquid separator according to claim 1, characterized in that: The second cylinder (20) comprises a main body (21), a connecting portion (22), and a flared portion (23) connecting the main body (21) and the connecting portion (22), and the cross-sectional area of ​​the flared portion (23) gradually increases along the axial direction of the gas-liquid separator and in the direction from the main body (21) to the connecting portion (22); The connecting portion (22) is located on the outer periphery of the first cylinder (10) and is connected to the first cylinder (10), and the end of the first cylinder (10) is in abutment with the inner wall of the flared portion (23).

3. The gas-liquid separator according to claim 1, characterized in that: An annular step is provided on the outer surface of the first cylinder (10), the second cylinder (20) is sleeved on the annular step, and one end of the second cylinder (20) is stopped on the step surface of the annular step.

4. The gas-liquid separator according to claim 3, characterized in that: The outer side surfaces of the first cylinder (10) and the second cylinder (20) are arranged flush with each other.

5. The gas-liquid separator according to claim 1, characterized in that: The first cylinder (10) and the second cylinder (20) are fixed by laser welding, double-shield welding or argon arc welding.

6. The gas-liquid separator according to claim 1, characterized in that: An air outlet (201) is provided at one end of the second cylinder (20) away from the first cylinder (10), and a through hole (301) is provided on the muffler plate (30). The gas-liquid separator also includes an air outlet pipe (50), one end of which passes through the through hole (301) and is accommodated in the first cylinder (10), and the other end of which extends out of the second cylinder (20) through the air outlet port (201), wherein the aperture of the through hole (301) is larger than the outer diameter of the air outlet pipe (50).

7. The gas-liquid separator according to claim 6, characterized in that: A vertical distance D between the hole wall of the through hole (301) and the outer wall of the air outlet pipe (50) satisfies 2 mm ≤ D ≤ 9 mm.

8. The gas-liquid separator according to claim 6, characterized in that: The air outlet pipe (50) is an integrally formed structure, and / or the air outlet pipe (50) is configured as an iron pipe.

9. The gas-liquid separator according to claim 6, characterized in that: An air inlet (101) is provided at one end of the first cylinder (10) away from the silencer plate (30), and the gas-liquid separator further comprises an air inlet pipe (40) and a filter assembly (60), wherein the air inlet pipe (40) is connected to the air inlet (101), a portion of the filter assembly (60) is located in the air inlet pipe (40), and another portion of the filter assembly (60) is located in the first cylinder (10) and directly faces the pipe opening of the air outlet pipe (50) located in the first cylinder (10), and the filter assembly (60) is spaced apart from the air outlet pipe (50).

10. An air conditioning system, characterized in that: Comprising a gas-liquid separator as described in any one of claims 1 to claim 9.

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