Gas-liquid separator and refrigeration apparatus

By using a filter mounting bracket to connect the filter screen to the end cap in the gas-liquid separator, the structure and manufacturing process of the container are simplified, the heat exchange efficiency of the evaporator and the refrigerant intake of the compressor are improved, and the energy efficiency of the refrigeration equipment is enhanced.

CN116164453BActive Publication Date: 2026-07-21ANHUI MEIZHI COMPRESSOR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ANHUI MEIZHI COMPRESSOR CO LTD
Filing Date
2023-01-04
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In order to install functional components such as filters, existing gas-liquid separators require positioning, snap-fit, or fixing structures to be formed on the inner wall of the container, resulting in a complex container structure and a complex manufacturing process.

Method used

The filter screen is connected to the end cap by a filter screen mounting bracket, so that the end cap, filter screen mounting bracket and filter screen are formed as a separate module, which is then directly joined and fixed to the main body, simplifying the structure and manufacturing process of the container.

Benefits of technology

The structure and manufacturing process of the container have been simplified, the heat exchange efficiency of the evaporator and the refrigerant intake of the compressor have been improved, and the energy efficiency of the refrigeration equipment has been increased.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application belongs to the technical field of refrigeration, and particularly relates to a gas-liquid separator and a refrigeration equipment gas-liquid separator and a refrigeration equipment. The gas-liquid separator comprises a container, the container comprises a main body and an end cover, the end cover is fixedly connected to an open end of the main body, the end cover is provided with a gas outlet, the bottom of the main body is provided with a liquid outlet and a mounting hole, the side of the end cover facing a containing space is provided with a filter screen mounting rack, the filter screen mounting rack comprises a filter partition plate and a gas conveying pipe, the outlet of the gas conveying pipe is communicated with the gas outlet, and the filter partition plate is provided with filter guide holes; an input pipe extends between the filter partition plate and the end cover; a filter screen is mounted and fixed on the filter screen mounting rack, and the filter screen surrounds the inlet of the gas conveying pipe. The technical scheme is applied to solve the problem that, in the prior art, in order to install functional components such as filter screens in the container, structures for positioning, clamping or fixing the filter screens need to be formed on the inner wall of the container, which leads to complex structure of the container and complex manufacturing process.
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Description

Technical Field

[0001] This application belongs to the field of refrigeration technology, and in particular relates to a gas-liquid separator and refrigeration equipment. Background Technology

[0002] Refrigeration equipment generally includes a compressor, condenser, evaporator, and expansion valve. The compressor draws in low-pressure working fluid vapor from the evaporator, increases its pressure, and sends it to the condenser, where it condenses into a higher-pressure liquid. After being throttled by the expansion valve, it becomes a lower-pressure liquid and is sent to the evaporator, where it absorbs heat and evaporates into a lower-pressure vapor. This vapor is then sent back to the compressor inlet, thus completing the refrigeration cycle.

[0003] The low-temperature, low-pressure gas-liquid mixture after passing through the throttle valve generally needs to be separated by a gas-liquid separator. The separated gas enters the compressor, and the separated liquid enters the evaporator. This reduces the gas volume entering the evaporator and improves the heat exchange efficiency of the evaporator. At the same time, since the pressure of the gas separated by the gas-liquid separator is higher than the main suction gas pressure of the compressor, the pressure ratio of the compressor is reduced, and the amount of refrigerant drawn into the compressor is increased.

[0004] In existing gas-liquid separators, the gas-liquid mixture is filtered and separated by functional components such as a filter screen. The liquid is discharged downwards through the liquid outlet under gravity, while the gas is discharged upwards through the gas outlet. Therefore, the installation of functional components such as the filter screen is crucial. To install functional components such as the filter screen in the container, a structure for positioning, snapping, or fixing the filter screen needs to be formed on the inner wall of the container, resulting in a complex container structure and manufacturing process. Summary of the Invention

[0005] The purpose of this application is to provide a gas-liquid separator and a refrigeration device, which aims to solve the problem in the prior art that in order to realize the installation of functional components such as filter screens in containers, it is necessary to form a structure on the inner wall of the container for positioning, snapping or fixing the filter screen, which leads to the complex structure and manufacturing process of the container.

[0006] To achieve the above objectives, the technical solution adopted in this application embodiment is: a gas-liquid separator, comprising:

[0007] The container includes a body and an end cap. One end of the body has an opening, and the end cap is engaged and fixed to the open end of the body to form a receiving space. The end cap is provided with an air outlet. The closed end of the body opposite to the opening is provided with a liquid outlet and an installation port. A filter mounting frame is provided on the side of the end cap facing the receiving space. The filter mounting frame includes a filter baffle and an air supply pipe connected to the filter baffle. The outlet of the air supply pipe and the air outlet are connected. The inner sidewalls of the filter baffle and the end cap are spaced apart. The filter baffle is provided with filter guide holes.

[0008] The inlet pipe passes through the mounting port and the filter baffle in sequence and extends between the filter baffle and the end cap.

[0009] The filter screen is installed and fixed on the side of the filter partition away from the end cover. The air supply pipe passes through the filter partition, and the inlet of the air supply pipe is located on the side of the filter partition away from the end cover. The filter screen surrounds the inlet of the air supply pipe.

[0010] In one embodiment, the filter mounting bracket further includes a plurality of mounting posts connected to the side of the filter baffle away from the end cap, and the plurality of mounting posts surround the inlet of the air supply pipe, with the filter screen connected to the plurality of mounting posts.

[0011] In one embodiment, each mounting post is provided with a hanging protrusion, and the filter screen is provided with a hanging hole corresponding to the hanging protrusion. The hanging protrusion is inserted into the hanging hole to connect the filter screen to the mounting post.

[0012] In one embodiment, the end of the filter screen facing away from the filter partition is open.

[0013] In one embodiment, the filter baffle has a through hole for the input pipe to pass through, and the inner diameter of the through hole is larger than the outer diameter of the input pipe.

[0014] In one embodiment, the end cap and the filter mounting bracket are integrally molded components.

[0015] In one embodiment, the portion of the input pipe located in the accommodating space is a straight pipe section, and the output port of the input pipe faces the inner wall of the end cap.

[0016] In one embodiment, the portion of the input pipe located in the accommodating space is a straight pipe section, the end of the input pipe facing the inner wall of the end cap is a closed end, and a side outlet is provided on the side wall of the pipe section between the filter baffle and the end cap.

[0017] In one embodiment, the section of the inlet pipe located between the filter baffle and the end cap is configured to extend spirally around the gas delivery pipe in the direction from the filter baffle to the end cap, or to bend around the gas delivery pipe in a plane perpendicular to the central axis of the gas delivery pipe.

[0018] According to another aspect of the embodiments of this application, a refrigeration device is provided. Specifically, the refrigeration device includes the gas-liquid separator as described above.

[0019] The embodiments of this application have at least the following beneficial effects:

[0020] By using the gas-liquid separator provided in this application, the filter screen is connected to the end cap using a filter screen mounting bracket, making the end cap, filter screen mounting bracket, and filter screen a separate module relative to the main body. Then, the end cap is directly engaged and fixed to the open end of the main body, that is, the separate module is directly engaged and fixed to the open end of the main body. In this way, the installation of the filter screen can be completed. Compared with the prior art, it is not necessary to form a structure on the inner wall of the container for positioning, fixing, or snapping functional parts to achieve the installation of the filter screen, which simplifies the structure of the container, simplifies the manufacturing process of the container, and reduces the manufacturing cost of the container.

[0021] Furthermore, compared with existing refrigeration equipment, the refrigeration equipment provided in this application reduces the proportion of gas entering the evaporator and improves the heat exchange efficiency of the evaporator. On the other hand, for the compressor, the pressure of the secondary suction gas separated by the gas-liquid separator is higher than the pressure of the main suction gas, thereby reducing the compressor's pressure ratio and increasing the compressor's refrigerant intake, resulting in higher energy efficiency than existing refrigeration equipment. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the refrigeration equipment of this application;

[0024] Figure 2 This is a cross-sectional schematic diagram of the gas-liquid separator provided in Embodiment 1 of this application;

[0025] Figure 3 This is an exploded view of the gas-liquid separator provided in Embodiment 1 of this application;

[0026] Figure 4 This is an exploded view of the gas-liquid separator provided in Embodiment 2 of this application;

[0027] Figure 5 This is an exploded view of the gas-liquid separator provided in Embodiment 3 of this application;

[0028] Figure 6 This is an exploded schematic diagram of the gas-liquid separator provided in Embodiment 2 of this application.

[0029] The following are the labeling elements in the figure:

[0030] 1. Gas-liquid separator; 10. Container; 11. Main body; 111. Liquid outlet port; 112. Mounting port; 12. End cap; 121. Gas outlet port; 20. Filter screen mounting bracket; 21. Filter baffle; 211. Filter guide hole; 212. Through hole; 22. Gas delivery pipe; 23. Mounting column; 231. Hanging protrusion; 30. Filter screen; 40. Input pipe; 41. Side output port; 2. Evaporator; 3. Compressor; 4. Condenser; 5. Primary capillary tube; 6. Secondary capillary tube; 7. Main suction line; 8. Secondary suction line. Detailed Implementation

[0031] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this application, and should not be construed as limiting the embodiments of this application.

[0032] In the description of the embodiments of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0033] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In the embodiments of this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0035] On the one hand, please refer to Figure 1As shown, this application provides a refrigeration device, which includes an evaporator 2, a compressor 3, a condenser 4, a primary capillary tube 5, a secondary capillary tube 6, and a gas-liquid separator 1. The evaporator 2 and the compressor 3 are connected via a main suction line 7, and the first output port of the gas-liquid separator 1 is connected to the compressor 3 via a secondary suction line 8. The high-temperature, high-pressure gas discharged from the compressor 3 is condensed by the condenser 4 into a low-temperature, high-pressure refrigerant liquid. After being throttled by the primary capillary tube 5, it becomes a low-temperature, low-pressure refrigerant gas-liquid mixture. The refrigerant gas-liquid mixture enters the gas-liquid separator 1, where secondary suction gas and liquid are separated. The secondary suction gas enters the compressor 3 through the secondary suction line 8. The liquid passes through the secondary capillary tube 6, where its pressure and temperature continue to decrease. It then enters the evaporator 2, absorbs heat, and its temperature rises, becoming refrigerant gas. This gas is then drawn into the compressor 3 as the main suction gas via the main suction line 7.

[0036] The refrigeration equipment provided in this application, due to the design of the gas-liquid separator 1, compared with existing refrigeration equipment, on the one hand, reduces the proportion of gas entering the evaporator 2, thereby improving the heat exchange efficiency of the evaporator 2; on the other hand, for the compressor 3, the pressure of the secondary suction gas separated by the gas-liquid separator 1 is higher than the pressure of the main suction gas, thereby reducing the pressure ratio of the compressor 3 and increasing the refrigerant intake of the compressor 3. In summary, the refrigeration equipment of this application has higher energy efficiency than existing refrigeration equipment, and the separation effect of the gas-liquid separator 1 has a significant impact on the refrigeration efficiency of the refrigeration equipment.

[0037] On the other hand, this application provides a gas-liquid separator 1 for use in the above-mentioned refrigeration equipment. The specific embodiments of the gas-liquid separator 1 are explained below.

[0038] Example 1:

[0039] like Figure 2 and Figure 3 As shown, it illustrates a schematic diagram of the gas-liquid separator according to Embodiment 1 of this application.

[0040] like Figure 2 and Figure 3As shown, the gas-liquid separator 1 includes a container 10, a filter screen 30, and an inlet pipe 40. The container 10 includes a main body 11 and an end cap 12, and the container 10 is a two-section combined container. One end of the main body 11 has an opening, and the end cap 12 is engaged and fixed to the opening end of the main body 11 to form a receiving space. Furthermore, the end cap 12 is provided with an air outlet 121, and the closed end of the main body 11 opposite to the open end (i.e., the bottom of the main body 11) is provided with a liquid outlet 111 and an installation port 112. Additionally, the end cap 12 has a filter mounting bracket 20 on the side facing the receiving space. The filter mounting bracket 20 includes a filter partition 21 and an air supply pipe 22 connected to the filter partition 21. The outlet of the air supply pipe 22 is connected to the air outlet 121. The filter screen 30 is installed and fixed on the side of the filter partition 21 away from the end cap 12. The air supply pipe 22 passes through the filter partition 21, and the inlet of the air supply pipe 22 is located on the side of the filter partition 21 away from the end cap 12, with the filter screen 30 surrounding the inlet of the air supply pipe 22. The filter partition 21 and the inner sidewall of the end cap 12 are spaced apart, and the filter partition 21 is provided with filter guide holes 211. The input tube 40 is passed through the mounting port 112 and the filter baffle 21 in sequence. Then, the end of the input tube 40 that enters the receiving space of the container 10 extends between the filter baffle 21 and the end cap 12.

[0041] Thus, when the input pipe 40 delivers the gas-liquid mixture to the space between the filter baffle 21 and the end cap 12, the gas-liquid mixture first fills the space between the filter baffle 21 and the end cap 12. Then, the gas-liquid mixture flows through the filter guide hole 211 to the space between the filter baffle 21 and the bottom of the main body 11. At this time, the liquid portion of the gas-liquid mixture has formed a flowing liquid state after being filtered and collected by the filter baffle 21. Therefore, the liquid portion of the gas-liquid mixture drips directly onto the bottom of the main body 11 under the action of gravity after passing through the filter guide hole 211, and then is output from the liquid outlet 111. The gas portion of the gas-liquid mixture floats and diffuses in the space between the filter baffle 21 and the bottom of the main body 11, then flows through the filter screen 30 into the gas delivery pipe 22, and is finally output from the gas outlet 121. Furthermore, when the gas portion of the gas-liquid mixture flows through the filter screen 30, the small liquid droplets carried in the gas are collected and aggregated by the filter screen 30 to form liquid droplets. When the droplets aggregate and grow to a certain size, they will drip onto the bottom of the main body 11 under the action of gravity and then be output from the liquid outlet 111.

[0042] By using the gas-liquid separator provided in this application, the filter screen 30 is connected to the end cap 12 using the filter screen mounting bracket 20, so that the end cap 12, the filter screen mounting bracket 20 and the filter screen 30 are formed as separate modules relative to the main body 11. Then, the end cap 12 is directly engaged and fixed to the open end of the main body 11, thus completing the installation of the filter screen 30. Compared with the prior art, it is not necessary to form a structure for positioning, fixing or snapping functional parts on the inner wall of the container 10 to realize the installation of the filter screen 30, which simplifies the structure of the container 10, simplifies the manufacturing process of the container 10 and reduces the manufacturing cost of the container 10.

[0043] In Embodiment 1 of this application, the main body 11, end cap 12, filter mounting bracket 20, filter 30, and input pipe 40 are all made of metal. Preferably, the end cap 12 is welded to the main body 11, and the input pipe 40 is welded after passing through the mounting port 112, thereby welding and fixing the input pipe 40 in the mounting port 112, and forming a seal between the outer wall of the input pipe 40 and the mounting port 112.

[0044] like Figure 3 As shown, the filter mounting bracket 20 also includes multiple mounting posts 23, which are used to mount the filter screen 30 onto the filter baffle 21. Specifically, the multiple mounting posts 23 are connected to the side of the filter baffle 21 opposite to the end cover 12, and the multiple mounting posts 23 surround the inlet of the air supply pipe 22. The filter screen 30 is connected to the multiple mounting posts 23. Specifically, the filter screen 30 can be installed and fixed to the multiple mounting posts 23 by means of a snap-fit ​​structure; the filter screen 30 can also be fixed to the mounting posts 23 by welding; or, the filter screen 30 can also be installed to the mounting posts 23 by screws.

[0045] like Figure 3 As shown, each mounting post 23 is provided with a hanging protrusion 231, and the filter screen 30 is provided with a hanging hole corresponding to the hanging protrusion 231. The hanging protrusion 231 is embedded in the hanging hole to quickly and conveniently connect the filter screen 30 to the mounting post 23, thereby improving installation efficiency and simplifying the assembly process for assembly workers.

[0046] In the gas-liquid separator of Embodiment 1 of this application, the end of the filter screen 30 facing away from the filter partition 21 is open. Since the gas portion of the gas-liquid mixture rises and diffuses as it enters the space between the filter partition 21 and the bottom of the main body 11 through the filter guide hole 211, while the liquid portion is already collected into droplets by the filter partition 21, even if the gas portion carries a small amount of fine water droplets, they will not sink to the open end of the filter screen 30 away from the filter partition 21 and will be directly output from the gas outlet 121. These gas portions carrying fine water droplets will pass through the filter screen 30, and during the flow through the filter screen 30, the filter screen 30 collects these small water droplets into liquid droplets, which accumulate larger and larger. Thus, the water droplets on the filter screen 30 will drip down to the bottom of the main body 11 under gravity and then be output from the liquid outlet 111.

[0047] After assembling the filter mounting bracket 20 and the filter screen 30, during the process of joining and fixing the end cap 12 to the main body 11, in order to facilitate the input pipe 40 passing through the filter partition 21 and extending between the filter partition 21 and the end cap 12, the filter partition 21 is provided with a through hole 212 for the input pipe 40 to pass through, and the inner diameter of the through hole 212 is larger than the outer diameter of the input pipe 40. That is to say, the input pipe 40 can easily pass directly through the through hole 212. Then, the end cap 12 is welded and fixed to the main body 11, thus completing the assembly of the gas-liquid separator.

[0048] Preferably, in the gas-liquid separator of Embodiment 1 of this application, the end cap 12 and the filter mounting bracket 20 are integrally formed components. Alternatively, in another embodiment, the end cap 12 and the filter mounting bracket 20 are two independent parts, and the filter mounting bracket 20 is connected to the end cap 12 by welding, snap-fitting, or bolt locking, which is not limited to this method.

[0049] like Figure 2 As shown, the section of the input pipe 40 located within the accommodating space is a straight section, and the output port of the input pipe 40 faces the inner wall of the end cap 12. When the gas-liquid mixture is output to the space between the filter baffle 21 and the end cap 12, the liquid in the gas-liquid mixture will collide and collect into water droplets on the inner surface of the end cap 12, then slide onto the filter baffle 21, and flow through the filter guide hole 211 to the liquid outlet 111 for output, thereby further improving the separation efficiency of the liquid in the gas-liquid mixture.

[0050] Example 2:

[0051] like Figure 4 As shown, it illustrates an exploded view of the gas-liquid separator according to Embodiment 2 of this application. The gas-liquid separator of Embodiment 2 differs from the gas-liquid separator of Embodiment 1 in the following ways.

[0052] In Embodiment 2, the section of the input pipe 40 within the accommodating space is a straight section, and the end of the input pipe 40 facing the inner wall of the end cap 12 is a closed end. A side outlet 41 is provided on the side wall of the section of the input pipe 40 located between the filter baffle 21 and the end cap 12. At this time, the gas-liquid mixture output laterally into the container 10 changes from a vertical to a horizontal direction, which reduces the vertical impact of the gas-liquid mixture on the inner wall of the end cap 12. This reduces the vertical impact force of the gas-liquid mixture, thus reducing the noise caused by the violent impact on the inner wall of the end cap 12 and improving the gas-liquid separation efficiency.

[0053] Compared with the gas-liquid separator in Example 1, the gas-liquid separator in Example 2 is identical in all other respects except for the above-mentioned structural differences, and will not be described again here.

[0054] Example 3:

[0055] like Figure 5 As shown, it illustrates an exploded schematic diagram of the gas-liquid separator according to Embodiment 3 of this application. Compared with the gas-liquid separator of Embodiment 1, the gas-liquid separator of Embodiment 3 has the following differences.

[0056] The section of the inlet pipe 40 located between the filter baffle 21 and the end cap 12 is configured to extend spirally around the gas delivery pipe 22 in the direction from the filter baffle 21 to the end cap 12. This spirally extended section changes the direction of the gas-liquid mixture entering the container 10 from vertical to horizontal, reducing the vertical impact of the gas-liquid mixture on the inner wall of the end cap 12. This reduces the vertical impact force of the gas-liquid mixture, thus reducing the noise caused by the violent impact on the inner wall of the end cap 12 and improving the gas-liquid separation efficiency.

[0057] Furthermore, the end of the input pipe 40 located within the accommodating space of the container 10 is a closed end, and a side outlet 41 is provided on the side wall of the section of the input pipe 40 between the filter baffle 21 and the end cap 12. Since the spirally arranged pipe end surrounds the gas delivery pipe 22 and has multiple side outlets 41, the gas-liquid mixture is transported from each side outlet 41 surrounding the gas delivery pipe 22 into the space between the filter baffle 21 and the end cap 12, allowing the gas-liquid mixture to fill the space more evenly.

[0058] Compared with the gas-liquid separator in Example 1, the gas-liquid separator in Example 3 is identical in all other respects except for the above-mentioned structural differences, and will not be described again here.

[0059] Example 4:

[0060] like Figure 6 As shown, it illustrates an exploded schematic diagram of the gas-liquid separator of Embodiment 4 of this application. Compared with the gas-liquid separator of Embodiment 1, the gas-liquid separator of Embodiment 4 has the following differences.

[0061] The section of the inlet pipe 40 located between the filter baffle 21 and the end cap 12 is configured to bend around the gas delivery pipe 22 in a plane perpendicular to the central axis of the gas delivery pipe 22. This horizontally bent section changes the direction of the gas-liquid mixture entering the container 10 from vertical to horizontal, reducing the vertical impact of the gas-liquid mixture on the inner wall of the end cap 12. This reduces the vertical impact force of the gas-liquid mixture, thus minimizing the noise caused by the violent impact on the inner wall of the end cap 12 and improving the gas-liquid separation efficiency.

[0062] Furthermore, the end of the input pipe 40 located within the accommodating space of the container 10 is a closed end, and a side outlet 41 is provided on the side wall of the section of the input pipe 40 located between the filter baffle 21 and the end cap 12. Because the horizontally curved pipe end surrounds the gas delivery pipe 22 and has multiple side outlets 41, the gas-liquid mixture is transported from each side outlet 41 surrounding the gas delivery pipe 22 into the space between the filter baffle 21 and the end cap 12, allowing the gas-liquid mixture to fill the space more evenly.

[0063] Compared with the gas-liquid separator in Example 1, the gas-liquid separator in Example 4 is identical in all other respects except for the above-mentioned structural differences, and will not be described again here.

[0064] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the embodiments of the present application should be included within the protection scope of the present application.

Claims

1. A gas-liquid separator, characterized in that, include: A container includes a body and an end cap. One end of the body has an opening, and the end cap is engaged and fixed to the open end of the body to form a receiving space. The end cap is provided with an air outlet. The closed end of the body opposite to the opening is provided with a liquid outlet and an installation port. A filter mounting bracket is provided on the side of the end cap facing the receiving space. The filter mounting bracket includes a filter baffle and an air supply pipe connected to the filter baffle. The outlet of the air supply pipe is connected to the air outlet. The filter baffle and the inner sidewall of the end cap are spaced apart. The filter baffle is provided with filter guide holes. An input pipe, which passes sequentially through the mounting port and the filter partition and extends between the filter partition and the end cap; A filter screen is installed and fixed on the side of the filter partition away from the end cover. The air supply pipe passes through the filter partition, and the inlet of the air supply pipe is located on the side of the filter partition away from the end cover. The filter screen surrounds the inlet of the air supply pipe.

2. The gas-liquid separator according to claim 1, characterized in that, The filter mounting bracket also includes multiple mounting posts, which are connected to the side of the filter baffle away from the end cap and surround the inlet of the air supply pipe. The filter is connected to the multiple mounting posts.

3. The gas-liquid separator according to claim 2, characterized in that, Each of the mounting posts is provided with a hanging protrusion, and the filter screen is provided with a hanging hole corresponding to the hanging protrusion. The hanging protrusion is embedded in the hanging hole to connect the filter screen to the mounting post.

4. The gas-liquid separator according to claim 1, characterized in that, The filter screen has an opening at one end opposite to the filter partition.

5. The gas-liquid separator according to claim 1, characterized in that, The filter baffle has a through hole for the input pipe to pass through, and the inner diameter of the through hole is larger than the outer diameter of the input pipe.

6. The gas-liquid separator according to any one of claims 1-5, characterized in that, The end cap and the filter mounting bracket are integrally molded components.

7. The gas-liquid separator according to any one of claims 1-5, characterized in that, The portion of the input pipe located within the accommodating space is a straight pipe section, and the output port of the input pipe faces the inner wall of the end cap.

8. The gas-liquid separator according to any one of claims 1-5, characterized in that, The portion of the input pipe located within the accommodating space is a straight pipe section, the end of the input pipe facing the end cap is a closed end, and a side outlet is provided on the side wall of the pipe section between the filter baffle and the end cap.

9. The gas-liquid separator according to any one of claims 1-5, characterized in that, The section of the input pipe located between the filter baffle and the end cap is configured to extend spirally in the direction from the filter baffle to the end cap or bend around the gas supply pipe in a plane perpendicular to the central axis of the gas supply pipe.

10. A refrigeration device, characterized in that, Includes the gas-liquid separator as described in any one of claims 1-9.