CN116164449A

CN116164449A - Gas-liquid separator and refrigerating system

Info

Publication number: CN116164449A
Application number: CN202310009505.3A
Authority: CN
Inventors: 黄刚; 李娟�
Original assignee: Anhui Meizhi Compressor Co Ltd
Current assignee: Anhui Meizhi Compressor Co Ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-05-26

Abstract

The application provides a gas-liquid separator and refrigerating system, refrigerating system includes the gas-liquid separator, and the gas-liquid separator includes: the container is of an integrated structure; the input pipe is used for inputting a gas-liquid mixture into the container; at least one functional element, which is installed in the inner cavity of the container and is used for filtering and/or guiding and/or separating the fluid; the two opposite ends of the container are respectively spun and contracted inwards along the radial direction after the functional piece is arranged in the inner cavity of the container to form an air outlet interface and a liquid outlet interface. The gas-liquid separator in this application because the interface of giving vent to anger of container and play liquid interface all can be by the radial inwards spinning shrink formation of container, consequently can assemble the function part to the container earlier in, then through spinning necking, make whole container design as an organic whole structure promptly, need not the segmentation design, simplified container structure, also simplified the manufacturing process of container simultaneously.

Description

Gas-liquid separator and refrigerating system

Technical Field

The application belongs to the technical field of refrigeration, and particularly relates to a gas-liquid separator and a refrigeration system.

Background

The refrigeration system generally comprises a compressor, a condenser, an evaporator and a throttle valve, wherein the compressor sucks working medium steam with lower pressure from the evaporator, the working medium steam is sent to the condenser after being increased in pressure, the working medium steam is condensed into liquid with higher pressure in the condenser, the liquid is sent to the evaporator after being throttled by the throttle valve, the liquid is sent to the evaporator after being cooled into liquid with lower pressure, and the liquid is absorbed and evaporated in the evaporator to be steam with lower pressure and then sent to an inlet of the compressor, so that the refrigeration cycle is completed.

The low-temperature low-pressure gas-liquid mixture passing through the throttle valve is generally required to be separated through a gas-liquid separator, the separated gas enters the compressor, and the separated liquid enters the evaporator, so that the gas occupation of the gas entering the evaporator can be reduced, the heat exchange efficiency of the evaporator is improved, and meanwhile, the pressure of the gas separated by the gas-liquid separator is higher than the pressure of main suction gas of the compressor, so that the pressure ratio of the compressor is reduced, and the refrigerant suction amount of the compressor is increased.

The gas-liquid separator generally introduces a gas-liquid mixture into a container, a filter screen is arranged in the container, the gas-liquid mixture is filtered by the filter screen, liquid is discharged downwards through a liquid outlet port under the action of gravity, and gas is discharged upwards through an air outlet port. The container is communicated with the external connecting pipe to discharge the separated gas and liquid, the gas outlet interface and the liquid outlet interface are required to be formed on the container, the inner diameters of the gas outlet interface and the liquid outlet interface are smaller than those of the main body part of the container, the container is required to be arranged into a sectional structure for installing functional parts such as a filter screen in the container, and the functional parts are assembled into one section of the container when assembled, and then the multi-section structure of the container is assembled.

Disclosure of Invention

An object of the embodiment of the application is to provide a gas-liquid separator and a refrigeration system, so as to solve the technical problems of complex structure of a container in the gas-liquid separator and complex manufacturing process in the prior art.

In order to achieve the above purpose, the technical scheme adopted in the application is as follows: there is provided a gas-liquid separator comprising:

the container is of an integrated structure;

the input pipe is used for inputting a gas-liquid mixture into the container;

at least one functional element mounted in the interior cavity of the container, the functional element being used for filtering and/or guiding and/or separating the fluid;

the two opposite ends of the container are respectively spun and contracted inwards along the radial direction after the functional piece is arranged in the inner cavity of the container to form an air outlet interface and a liquid outlet interface.

In one possible design, the functional component is a filtering structure, the filtering structure comprises a filter screen and a mounting component, the mounting component is clamped on the inner wall of the container, and the filter screen is mounted on the mounting component;

or the mounting piece is welded on the inner wall of the container, and the filter screen is mounted on the mounting piece;

or the mounting piece and the filter screen are clamped on the inner wall of the container together.

In one possible design, the functional element comprises a filter structure comprising a filter screen and a mounting element; the installation piece is installed in the container, a clamping groove is formed in the installation piece, and the periphery of the filter screen is clamped in the clamping groove.

In one possible design, the functional element comprises a filter structure comprising a filter screen and a mounting element; the installation piece comprises an installation body and a contact ring, the filter screen is installed on the installation body, one end of the contact ring is connected to the installation body, the other end of the contact ring is a free end, a first convex ring is formed on the inner wall of the container, and the other end of the contact ring is elastically abutted to the first convex ring.

In one possible design, a second collar is formed on the inner wall of the container, the second collar being spaced apart from the first collar, the second collar being for effecting axial positioning of the mount in the container; the first convex ring and the second convex ring are respectively formed by spinning the container.

In one possible design, the mounting body includes a center plate and a connecting ring; the central plate is provided with a first diversion hole which is penetrated in the axial direction, one end of the connecting ring is connected with the periphery of the central plate, the contact ring is arranged on the periphery of the connecting ring in a surrounding manner, one end of the contact ring is connected with the other end of the connecting ring, and the other end of the contact ring reversely extends to the other side of the central plate; the connecting ring and the contact ring are enclosed to form a clamping groove for clamping the periphery of the filter screen, and the other end of the contact ring is used for elastically abutting against the first convex ring.

In one possible design, the functional element comprises a partition plate arranged in the container, the partition plate is arranged between the input pipe and the liquid outlet port, and second diversion holes which are axially communicated are distributed on the partition plate.

In one possible design, a third convex ring and a fourth convex ring are formed on the inner wall of the container, and the third convex ring and the fourth convex ring are respectively used for abutting against the two axial side edges of the partition plate; the third collar and/or the fourth collar is spin formed from the container.

In one possible design, the partial section of the feed pipe that is inserted into the vessel is raised or lowered helically in the axial direction of the vessel.

In one possible design, the end tangent of the inlet pipe is disposed at an acute angle to the inner wall of the container.

In one possible design, the portion of the input tube that is inserted into the container is perpendicular to the axis of the container, and the radial depth of the input tube that is inserted into the container is greater than one-half the inner diameter of the container.

The beneficial effect of the gas-liquid separator that this application provided lies in: according to the gas-liquid separator, the container of the gas-liquid separator is provided with the gas outlet interface and the liquid outlet interface in a radial spinning mode, the input pipe and the functional parts can be firstly arranged in the blank of the container, and then the opposite ends of the blank of the container are respectively shrunk along radial inward spinning to form the gas outlet interface and the liquid outlet interface, so that the functional parts with larger radial sizes are assembled with the container on the basis of the integral structure of the container, the structure of the container is simplified, the manufacturing process of the container is simplified, and the assembly difficulty of the whole gas-liquid separator is reduced.

On the other hand, the application also provides a refrigeration system which comprises the gas-liquid separator.

The beneficial effect of refrigerating system that this application provided lies in: according to the refrigerating system provided by the embodiment of the application, through the arrangement of the gas-liquid separator, the refrigerating system is higher in energy efficiency than the existing refrigerating system.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a refrigeration system according to an embodiment of the present disclosure;

FIG. 2 is a schematic longitudinal cross-sectional view of a gas-liquid separator provided in an embodiment of the present application;

FIG. 3 is an exploded schematic view of a gas-liquid separator provided in an embodiment of the present application;

FIG. 4 is a schematic view of the structure of the container of FIG. 3;

fig. 5 is a schematic view of the structure of the mounting member in fig. 3.

Wherein, each reference sign in the figure:

1. a gas-liquid separator; 11. a container; 111. an air outlet interface; 112. a liquid outlet interface; 113. a mounting hole; 114. a first collar; 115. a second convex ring; 116. a third convex ring; 117. a fourth convex ring; 12. an input tube; 13. a filter screen; 14. a mounting member; 141. a center plate; 1411. a first deflector aperture; 142. a connecting ring; 143. a contact ring; 144. a clamping groove; 15. a partition plate; 151. a second deflector aperture; 2. an evaporator; 3. a compressor; 4. a condenser; 5. a primary capillary; 6. a secondary capillary; 7. a main suction pipeline; 8. two suction pipelines.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other 5 element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be

Is directly connected to another element or indirectly connected to the other element.

It is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", etc,

Orientation or positional relationship indicated by "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", and the like

For the purpose of facilitating description of the present application and simplifying the description based on the orientation or positional relationship shown in the drawings, rather than indicating or darkly 0 that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention

Application limitation.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, the features defining the "first" and "second" can be clearly shown

Or implicitly include one or more of such features. In the description of the present application, the meaning of "plurality" is two or more than 5 unless specifically defined otherwise.

In one aspect, referring to fig. 1, the present application provides a refrigeration system, which includes an evaporator 2, a compressor 3, a condenser 4, a primary capillary 5, a secondary capillary 6, and a gas-liquid separator 1, wherein the evaporator 2 is connected with the compressor 3 through a main suction pipe 7, and an air outlet port 111 of the gas-liquid separator 1 is connected with the compressor 3 through a secondary suction pipe 8. Compressor 3 discharge

The high-temperature high-pressure gas is condensed by a condenser 4 to become low-temperature high-pressure refrigerant liquid, and is throttled by a primary capillary 5 to become 0 to become low-temperature low-pressure refrigerant gas-liquid mixture. The refrigerant gas-liquid mixture enters a gas-liquid separator 1 to separate out two-suction gas and liquid

The two suction bodies enter the compressor 3 through the two suction pipelines 8. The liquid passes through the secondary capillary tube 6, the pressure and the temperature are continuously reduced, the liquid enters the evaporator 2 to absorb heat, the temperature is increased to become refrigerant gas, and the refrigerant gas is sucked into the compressor 3 as main suction gas through the main suction pipeline 7.

Compared with the existing refrigeration system, due to the design of the gas-liquid separator 1, on one hand, the refrigeration system reduces the gas ratio entering the 5 evaporator 2 and improves the heat exchange efficiency of the evaporator 2; on the other hand, for the compressor 3, gas-liquid separation

The pressure of the secondary suction gas separated by the separator 1 is higher than that of the primary suction gas, thereby reducing the pressure ratio of the compressor 3 and increasing the refrigerant suction amount of the compressor 3. In summary, the refrigeration system of the present application has higher energy efficiency than the existing refrigeration system, wherein the separation effect of the gas-liquid separator 1 has a great influence on the refrigeration efficiency of the system.

On the other hand, referring to fig. 2 and 3, the present application also provides a gas-liquid separator 1, and the gas-liquid separator 1 provided in embodiment 0 of the present application will now be described. The gas-liquid separator 1 can be used in a refrigeration system to be subjected to primary capillary action

The low-temperature low-pressure gas-liquid mixture of the pipe 5 is subjected to gas-liquid separation. It will be appreciated that in other embodiments of the present application, the gas-liquid separator 1 may also find application in other fields, such as gas-liquid separation for boiler outlets, gas-liquid separation for steam generators, not being limited solely herein.

The gas-liquid separator 1 comprises a vessel 11, an inlet pipe 12 and at least one functional element. The container 11 is of an integral structure; one end of the input pipe 12 extends into the container 11, and the input pipe 12 is used for inputting the gas-liquid mixture into the container 11; the functional elements are mounted in the container 11 for filtering and/or guiding and/or separating a fluid, which is a gas-liquid mixture, a gas or a liquid. Wherein, the opposite ends of the container 11 are respectively spun and contracted inwards along the radial direction after the functional parts are arranged in the inner cavity of the container 11 to form an air outlet interface 111 and an air outlet interface 112,

when the gas-liquid separator 1 is assembled, a cylindrical container 11 is formed, then the input pipe 12 and the functional parts are assembled on the container 11 respectively, and finally the opposite ends of the container 11 are formed into a gas outlet port 111 and a liquid outlet port 112 by means of spin forming.

The functional piece can be a filtering structure for filtering the fluid, can also be a partition plate for separating the separated gas and liquid, and can also be a guide plate for guiding the fluid. It will be appreciated that two or three of the filter structure, the partition and the baffle may also be provided in the vessel 11 in order to achieve a better separation of the gas-liquid separator 1.

After the gas-liquid mixture is input into the input pipe 12 and the fluid is dispersed by filtering and/or diversion and/or separation of the functional parts, the gas flows out from the gas outlet port 111, and the liquid flows out from the liquid outlet port 112 under the action of gravity, so that the gas-liquid separation is realized.

According to the gas-liquid separator 1, the container 11 of the gas-liquid separator forms the gas outlet interface 111 and the liquid outlet interface 112 in a radial spinning mode, the input pipe 12 and the functional parts can be firstly installed in the container 11, and then the opposite ends of the blank of the container 11 are respectively spun and contracted inwards in the radial direction to form the gas outlet interface 111 and the liquid outlet interface 112, so that the functional parts with larger radial dimensions are assembled with the container 11 on the basis of the container 11 being an integral structure, the structure of the container 11 is simplified, the manufacturing process of the container 11 is simplified, and the assembly difficulty of the whole gas-liquid separator 1 is reduced.

In one embodiment, referring to fig. 2 and 3, the functional element includes a filter structure, the filter structure includes a filter screen 13 and a mounting element 14, the mounting element 14 is mounted in the container 11, the mounting element 14 is clamped on an inner wall of the container 11, and the filter screen 13 is mounted on the mounting element 14. During installation, the filter screen 13 can be firstly installed on the installation piece 14, then the installation piece 14 is clamped in the container 11, and the installation of the filter screen 13 in the container 11 is realized through the installation piece 14. It will be appreciated that in other embodiments of the present application, the mounting member 14 may be welded to the inner wall of the container 11, the filter screen 13 is mounted on the mounting member 14, for example, a welding ring is embedded on a peripheral outer wall of the mounting member 14, and then the mounting member 14 and the container 11 are welded together; alternatively, the mounting member 14 and the filter screen 13 may be integrally fastened to the inner wall of the container 11, and the periphery of the filter screen 13 may be supported by the mounting member 14 to ensure the fastening reliability of the filter screen 13 in the container 11.

In one embodiment, referring to fig. 2, 3 and 5, the functional element includes a filtering structure, and the filtering structure includes a filter screen 13 and a mounting element 14; the mounting member 14 is formed with a locking groove 144, and the periphery of the filter screen 13 is locked in the locking groove 144, so that the filter screen 13 is mounted by locking the periphery of the filter screen 13.

In one embodiment, referring to fig. 2, 3 and 5, the mounting member 14 includes a mounting body and a contact ring 143, the filter 13 is mounted on the mounting body, one end of the contact ring 143 is connected to the mounting body, the other end of the contact ring 143 is a free end, a first protruding ring 114 is formed on the inner wall of the container 11, and the other end of the contact ring 143 is elastically abutted against the first protruding ring 114. During installation, the periphery of the filter screen 13 can be clamped in the clamping groove 144, then the other end of the contact ring 143 is elastically abutted against the first convex ring 114 on the inner wall of the container 11, and the first convex ring 114 and the contact ring 143 form interference fit, so that the installation piece 14 can be firmly installed in the container 11.

In one embodiment, referring to fig. 2 and 4, a second convex ring 115 is formed on the inner wall of the container 11, the second convex ring 115 is spaced from the first convex ring 114, and the second convex ring 115 is used to realize the axial positioning of the mounting member 14 in the container 11; the first and

second collars

114, 115 are each formed by spinning the container 11. When assembling, the mounting piece 14 can be firstly abutted against the second convex ring 115 in the axial direction, so that the preliminary positioning of the mounting piece 14 in the container 11 is realized, then the first convex ring 114 is formed in a spinning mode, the first convex ring 114 is abutted against the other end of the contact ring 143 in the forming process, the other end of the contact ring 143 is enabled to be bent and deformed inwards in the radial direction, and meanwhile, the contact ring 143 and the first convex ring 114 are also in interference abutting fit.

In this case, since the second convex ring 115 is formed before the mounting member 14 is assembled, the second convex ring 115 may be formed by spin-forming, or the second convex ring 115 may be formed together when the container 11 is initially formed, which is not limited only herein.

In one embodiment, referring to fig. 2 and 5, the mounting body includes a center plate 141 and a connecting ring 142; the central plate 141 is formed with a first flow guide hole 1411 penetrating axially, one end of the connection ring 142 is connected with the periphery of the central plate 141, the contact ring 143 is surrounded on the periphery of the connection ring 142, one end of the contact ring 143 is connected with the other end of the connection ring 142, and the other end of the contact ring 143 extends reversely to the other side of the central plate 141; the connecting ring 142 and the contact ring 143 are enclosed to form a clamping groove 144 for clamping the periphery of the filter screen 13. Wherein, the opposite extension means that a first direction from the other end to the one end of the contact ring 143 is opposite to a second direction from the one end to the other end of the connection ring 142.

Specifically, taking fig. 2 as an example, the air outlet port 111 is located above, the air outlet port 112 is located below, one end of the connecting ring 142 is connected with the lower side edge of the central plate 141, the other end of the contact ring 143 extends reversely to the upper side of the central plate 141, that is, the axial length of the contact ring 143 is greater than that of the connecting ring 142, the contact ring 143 not only forms a clamping groove 144 with the connecting ring 142 in a surrounding manner, but also can abut the lower end of the contact ring 143 to the upper side of the second convex ring 115 during installation, so that the initial axial positioning of the installation member 14 in the container 11 is realized; in addition, the axial length of the contact ring 143 is long, so that the elastic deformation capability of the contact ring 143 after being stressed is good, and when the first convex ring 114 is formed by spinning, the first convex ring 114 abuts against the other end of the contact ring 143, so that the other end of the contact ring 143 is radially deformed to enable abutting and positioning.

In this embodiment, by using the contact ring 143 as one side wall of the locking groove 144, when the other end of the contact ring 143 is elastically deformed, the filter 13 can be radially abutted, so as to achieve firm fixation of the filter 13. It will be appreciated that in other embodiments of the present application, the engagement may be made directly in a block structure with the contact ring 143 extending outwardly to effect the engagement, as is not limited solely herein.

In addition, since the filter screen 13 is installed above the central plate 141, the gas-liquid mixture needs to reach the filter screen 13 through the central plate 141, so that the first diversion holes 1411 are arranged to facilitate the passage of the gas-liquid mixture on one hand and to perform preliminary diversion filtration on the gas-liquid mixture on the other hand, thereby realizing the function of dispersing fluid.

In one embodiment, referring to fig. 2 and 3, the functional element includes a partition 15 disposed in the container 11, the partition 15 is disposed between the input pipe 12 and the liquid outlet 112, and second diversion holes 151 axially penetrating are distributed on the partition 15. Wherein, the baffle 15 is arranged below the input pipe 12 and has the function of blocking gas, so that the gas-liquid separator 1 input from the input pipe 12 is separated by the filtration and the diversion of the filter screen 13; meanwhile, the second diversion holes 151 on the partition plate 15 are arranged to conduct diversion filtration on liquid and can play a role in stabilizing the lower flow field.

In an embodiment, referring to fig. 2 and 4, a third convex ring 116 and a fourth convex ring 117 are further disposed on the inner wall of the container 11, the third convex ring 116 and the fourth convex ring 117 are respectively used to abut against two axial side edges of the partition 15, and the third convex ring 116 and/or the fourth convex ring 117 are formed by spinning the container 11.

Optionally, the third collar 116 and the fourth collar 117 are formed by spin forming. During assembly, the third convex ring 116 can be formed in a spinning mode, the lower side edge of the partition plate 15 is abutted to the third convex ring 116, the partition plate 15 is initially positioned through the third convex ring 116, and after the filtering structure and the input pipe 12 are positioned, the fourth convex ring 117 is formed in a spinning mode, so that the partition plate 15 is clamped and positioned in the container 11 through the third convex ring 116 and the fourth convex ring 117. In this embodiment, no additional mounting and positioning structure is required to be provided on the vessel 11, and the mounting and positioning of the partition plate 15 can be achieved by spinning radially inwards on the structure of the vessel 11 itself, the structure of the vessel 11 is simple, and the assembly process of the whole gas-liquid separator 1 is simple. It will be appreciated that in other embodiments of the present application, one of the third collar 116 and the fourth collar 117 may be formed by other means, such as injection molding, die casting, etc., and is not limited only herein.

In one embodiment, referring to fig. 2 and 3, the portion of the input pipe 12 inserted into the container 11 is spirally raised or spirally lowered along the axial direction of the container 11 to gradually change the direction of the gas-liquid mixture entering the container 11, and simultaneously, the length of the gas-liquid mixture entering the container 11 is also prolonged, so that the effects of dispersing fluid, reducing the flow rate and improving the separation effect are achieved.

In one embodiment, referring to fig. 2, the tangent line at the end of the input pipe 12 is disposed at an acute angle to the inner wall of the container 11, in other words, the tangent line at the end of the input pipe 12 is not disposed perpendicular to the inner wall of the container 11, that is, the gas-liquid mixture input from the input pipe 12 does not vertically impact the inner wall of the container 11, but is output and gradually dispersed in an oblique direction. Here, the end tangent of the input pipe 12 means a line tangent to the end of the input pipe 12 that protrudes into the container 11.

In one embodiment, the input tube 12 is mounted in the container 11 by welding, and the sidewall of the container 11 is formed with a mounting hole 113. Specifically, a straight input pipe 12 may be prepared, then the input pipe 12 is inserted into the container 11 from the mounting hole 113, the input pipe 12 is spirally rotated while being inserted, so that the portion of the input pipe 12 inserted into the container 11 is spirally extended, and finally the input pipe 12 is welded to the container 11. In this embodiment, the input tube 12 is fixed by welding, so that the assembly of the input tube 12 is simple, and the sealability between the input tube 12 and the container 11 is ensured. It will be appreciated that the inlet tube 12 may be secured in the container 11 by other means, such as by a sealing ring abutting, such as by forming an interface at the mounting hole 113, and then mounting the inlet tube 12 by sealing engagement, although this is not limited only.

It will be appreciated that in other embodiments of the present application, the portion of the input tube 12 that is inserted into the container 11 may be perpendicular to the axis of the container 11, with the radial depth of the input tube 12 inserted into the container 11 being greater than one-half the inner diameter of the container 11.

The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application.

Claims

1. A gas-liquid separator, comprising:

the container is of an integrated structure;

the input pipe is used for inputting a gas-liquid mixture into the container;

2. The gas-liquid separator according to claim 1, wherein the functional member comprises a filter structure, the filter structure comprising a filter screen and a mounting member, the mounting member being snap-fitted to an inner wall of the vessel, the filter screen being mounted to the mounting member;

3. The gas-liquid separator according to claim 1, wherein the functional member comprises a filter structure comprising a filter screen and a mounting member; the installation piece is installed in the container, a clamping groove is formed in the installation piece, and the periphery of the filter screen is clamped in the clamping groove.

4. The gas-liquid separator according to claim 1, wherein the functional member comprises a filter structure comprising a filter screen and a mounting member; the installation piece comprises an installation body and a contact ring, the filter screen is installed on the installation body, one end of the contact ring is connected to the installation body, the other end of the contact ring is a free end, a first convex ring is formed on the inner wall of the container, and the other end of the contact ring is elastically abutted to the first convex ring.

5. The gas-liquid separator according to claim 4, wherein a second collar is formed on an inner wall of the vessel, the second collar being spaced apart from the first collar, the second collar being for effecting axial positioning of the mounting member in the vessel; the first convex ring and the second convex ring are respectively formed by spinning the container.

6. The gas-liquid separator according to claim 4 wherein the mounting body comprises a center plate and a connecting ring; the central plate is provided with a first diversion hole which is penetrated in the axial direction, one end of the connecting ring is connected with the periphery of the central plate, the contact ring is arranged on the periphery of the connecting ring in a surrounding manner, one end of the contact ring is connected with the other end of the connecting ring, and the other end of the contact ring reversely extends to the other side of the central plate; the connecting ring and the contact ring are enclosed to form a clamping groove for clamping the periphery of the filter screen, and the other end of the contact ring is used for elastically abutting against the first convex ring.

7. The gas-liquid separator according to claim 1, wherein the functional member comprises a partition plate arranged in the container, the partition plate is arranged between the input pipe and the liquid outlet port, and second diversion holes which are axially communicated are distributed on the partition plate.

8. The gas-liquid separator according to claim 7, wherein a third convex ring and a fourth convex ring are formed on the inner wall of the container, and the third convex ring and the fourth convex ring are respectively used for being abutted with the two axial side edges of the partition plate; the third collar and/or the fourth collar is spin formed from the container.

9. A gas-liquid separator according to any one of claims 1 to 8, wherein the portion of the inlet pipe inserted into the vessel is spirally raised or spirally lowered in the axial direction of the vessel.

10. The gas-liquid separator of claim 9, wherein a tangent to the end of the inlet tube is disposed at an acute angle to the inner wall of the vessel.

11. A gas-liquid separator according to any one of claims 1 to 8 wherein the portion of the inlet pipe inserted into the vessel is perpendicular to the axis of the vessel, the radial depth of the inlet pipe inserted into the vessel being greater than one-half the inner diameter of the vessel.

12. A refrigeration system comprising a gas-liquid separator as claimed in any one of claims 1 to 11.