Structure of gas separator and liquid accumulator assembly with heat exchange function

Abstract

The utility model discloses a structure of a gas separator and liquid accumulator combination with heat exchange, a gas-liquid separation unit comprises a gas separator shell, a gas separator liquid inlet pipe and a gas outlet pipe, the gas separator shell is provided with a gas-liquid separation space, the gas separator liquid inlet pipe and the gas outlet pipe are fixed on the gas separator shell and communicated with the gas-liquid separation space, and the gas separator liquid inlet pipe and the gas outlet pipe are communicated with the gas separator shell. The liquid storage unit comprises a liquid storage shell, a stored liquid inlet pipe and a liquid outlet pipe, the liquid storage unit is fixed on the gas-liquid separation unit and is arranged in the gas-liquid separation space, the liquid storage unit is provided with a liquid storage space, and the stored liquid inlet pipe and the liquid outlet pipe are communicated with the liquid storage space. The high-temperature and high-pressure liquid refrigerant in the liquid storage space can transfer latent heat to the low-temperature and low-pressure gas-liquid two-phase refrigerant in the gas-liquid separation space, heat loss is reduced, and therefore the refrigeration efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of refrigeration technology, and in particular relates to the structure of a gas separator and liquid receiver assembly that combines heat exchange. Background Technology

[0002] Gas-liquid separators are installed at the inlet and outlet of gas compressors for gas-liquid separation. They can also be used in various industrial and civil applications such as gas dust removal, oil-water separation, and liquid impurity removal. In a refrigeration system, the gas-liquid separator separates any unevaporated liquid refrigerant returning from the evaporator, preventing it from entering the compressor and damaging it. The liquid receiver stores the condensed liquid refrigerant, acting as a buffer. However, if the gas-liquid separation unit and liquid receiver unit were installed separately in a refrigeration system, they would require connecting pipes and valves, occupying a significant amount of space. Each unit occupies certain resources and operates independently in the refrigeration system, thus affecting refrigeration efficiency. Therefore, a structure combining a gas-liquid separation unit and a liquid storage unit has emerged. In existing combined structures, the liquid storage unit is generally installed outside the gas-liquid separation unit. Low-temperature, low-pressure gas-liquid two-phase refrigerant enters the gas-liquid separation unit, while high-temperature, high-pressure liquid refrigerant enters the liquid storage unit. The latent heat in the high-temperature, high-pressure liquid refrigerant is transferred to the low-temperature, low-pressure gas-liquid two-phase refrigerant. Because the liquid storage unit is located outside the gas-liquid separation unit, some heat cannot be transferred during heat transfer, thus affecting refrigeration efficiency. Utility Model Content

[0003] The purpose of this invention is to solve the aforementioned technical problems in the prior art and to provide a structure for a gas separator and liquid receiver assembly that combines heat exchange. A gas-liquid separation unit is formed by combining a gas separator shell, a gas separator inlet pipe, and a gas outlet pipe. A liquid storage unit is formed by combining a liquid storage shell, a liquid storage inlet pipe, and a liquid outlet pipe. The liquid storage unit is built into the gas-liquid separation space of the gas-liquid separation unit, so that the high-temperature and high-pressure liquid refrigerant in the liquid storage space can transfer its latent heat to the low-temperature and low-pressure gas-liquid two-phase refrigerant in the gas-liquid separation space, thereby reducing heat loss and increasing refrigeration efficiency.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A structure for a gas separator and liquid reservoir assembly that combines heat exchange, comprising:

[0006] The gas-liquid separation unit includes a gas separator housing, a gas separator inlet pipe, and a gas outlet pipe. The gas separator housing is provided with a gas-liquid separation space, and the gas separator inlet pipe and the gas outlet pipe are fixed on the gas separator housing and communicate with the gas-liquid separation space.

[0007] The liquid storage unit includes a liquid storage shell, a liquid storage inlet pipe, and a liquid outlet pipe. The liquid storage unit is fixed on the gas-liquid separation unit and built into the gas-liquid separation space. The liquid storage unit has a liquid storage space, and the liquid storage inlet pipe and the liquid outlet pipe are connected to the liquid storage space.

[0008] A gas-liquid separation unit is formed by combining a gas separator shell, a gas separator inlet pipe, and a gas outlet pipe. A liquid storage unit is formed by combining a liquid storage shell, a liquid storage inlet pipe, and a liquid outlet pipe. The liquid storage unit is built into the gas-liquid separation space of the gas-liquid separation unit. This allows the high-temperature, high-pressure liquid refrigerant in the liquid storage space to transfer its latent heat to the low-temperature, low-pressure gas-liquid two-phase refrigerant in the gas-liquid separation space, reducing heat loss and thus increasing refrigeration efficiency.

[0009] Furthermore, the gas separator shell includes an upper end cover, a lower end cover, and a shell body. The upper end cover and the lower end cover are flared to form a first welded part. The two ends of the shell body are inserted into the upper end cover and the lower end cover and welded to the first welded part. The upper end cover, the lower end cover, and the shell body together form a gas-liquid separation space.

[0010] Furthermore, both the upper and lower end caps have an arc-shaped structure. The gas outlet pipe and the gas-liquid inlet pipe both pass through the upper end cap and are welded and fixed to the upper end cap. One end of the gas outlet pipe and the gas-liquid inlet pipe are located in the gas-liquid separation space, and the other end extends out of the gas-liquid separation space.

[0011] Furthermore, the gas-liquid inlet pipe has a gas-liquid inlet at one end extending out of the gas-liquid separation space, the outlet pipe has an inlet at one end located in the gas-liquid separation space, and the outlet pipe has an outlet at one end extending out of the gas-liquid separation space.

[0012] Furthermore, the exhaust pipe includes an inlet section, an outlet section, and a connecting section. The inlet section is located in the gas-liquid separation space, the outlet section is welded and fixed to the upper end cover, and the connecting section is used to connect the inlet section and the outlet section. The inlet is located on the inlet section, and the outlet is located on the outlet section.

[0013] Furthermore, the exhaust pipe is also equipped with an oil return hole, which is located on the connecting section and contains a filter assembly.

[0014] Furthermore, the exhaust pipe is also equipped with pressure equalization holes, which are located on the exhaust section.

[0015] Furthermore, the liquid storage shell has a cylindrical structure with narrowed ends. The narrowed ends of the liquid storage shell form a second welding part. The upper end cover and the lower end cover are respectively provided with a first welding port. The liquid storage shell is welded into the first welding port through the second welding part. The liquid inlet pipe and the liquid outlet pipe are located at both ends of the liquid storage shell and are welded and fixed to the second welding part.

[0016] Furthermore, the cross-section of the liquid storage shell is a U-shaped structure with one end open. The open end of the liquid storage shell is welded and fixed to the upper end cover. The liquid storage shell and the upper end cover together form a liquid storage space. The upper end cover is provided with a second welding port. The liquid inlet pipe and the liquid outlet pipe are welded into the second welding port and communicate with the liquid storage space.

[0017] Furthermore, the ends of the liquid inlet pipe and the liquid outlet pipe that extend out of the liquid storage space are respectively provided with a liquid inlet and a liquid outlet.

[0018] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects:

[0019] In this invention, the gas-liquid separation unit includes a gas separator shell, a gas separator inlet pipe, and a gas outlet pipe. The gas separator shell has a gas-liquid separation space. The gas separator inlet pipe and the gas outlet pipe are fixed on the gas separator shell and communicate with the gas-liquid separation space. The liquid storage unit includes a liquid storage shell, a liquid storage inlet pipe, and a liquid outlet pipe. The liquid storage unit is fixed on the gas-liquid separation unit and built into the gas-liquid separation space. The liquid storage unit has a liquid storage space. The liquid storage inlet pipe and the liquid outlet pipe communicate with the liquid storage space. The gas separator shell, the gas separator inlet pipe, and the gas outlet pipe are combined to form the gas-liquid separation unit. The liquid storage unit is built into the gas-liquid separation space of the gas-liquid separation unit, so that the high-temperature and high-pressure liquid refrigerant in the liquid storage space can transfer its latent heat to the low-temperature and low-pressure gas-liquid two-phase refrigerant in the gas-liquid separation space, reducing heat loss and thus increasing refrigeration efficiency. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] Figure 1 This is a structural schematic diagram of a first embodiment of the present invention, which combines a gas separator and a liquid storage device for heat exchange.

[0022] Figure 2 This utility model Figure 1 Top view;

[0023] Figure 3 This utility model Figure 1 A magnified view of a section at point A in the middle;

[0024] Figure 4 This is a structural schematic diagram of a second embodiment of the present invention, which combines a gas separator and a liquid storage device for heat exchange.

[0025] Figure 5 This utility model Figure 4 Top view;

[0026] Figure 6 This utility model Figure 4 A magnified view of a section at point B in the middle.

[0027] In the diagram: 1-Gas-liquid separation unit; 2-Gas separator shell; 3-Gas separator liquid inlet pipe; 4-Gas outlet pipe; 5-Gas-liquid separation space; 6-Liquid storage unit; 7-Liquid storage shell; 8-Liquid storage inlet pipe; 9-Liquid outlet pipe; 10-Liquid storage space; 11-Upper end cover; 12-Lower end cover; 13-Shell body; 14-First welded part; 15-Gas separator liquid inlet; 16-Air inlet; 17-Air outlet; 18-Air inlet section; 19-Air outlet section; 20-Connecting section; 21-Oil return hole; 22-Filter assembly; 23-Pressure equalization hole; 24-Second welded part; 25-First weld joint; 26-Second weld joint; 27-Liquid storage inlet; 28-Liquid storage outlet. Detailed Implementation

[0028] Example 1

[0029] like Figures 1 to 3 The diagram shows the structure of a gas separator and liquid storage unit that combines heat exchange according to this utility model. It includes a gas-liquid separation unit 1 and a liquid storage unit 6. The gas-liquid separation unit 1 includes a gas separator housing 2, a gas separator inlet pipe 3, and a gas outlet pipe 4. The gas separator housing 2 is provided with a gas-liquid separation space 5. The gas separator inlet pipe 3 and the gas outlet pipe 4 are fixed on the gas separator housing 2 and communicate with the gas-liquid separation space 5. The liquid storage unit 6 includes a liquid storage housing 7, a liquid storage inlet pipe 8, and a liquid outlet pipe 9. The liquid storage unit 6 is fixed on the gas-liquid separation unit 1 and built into the gas-liquid separation space 5. The liquid storage unit 6 is provided with a liquid storage space 10. The liquid storage inlet pipe 8 and the liquid outlet pipe 9 communicate with the liquid storage space 10.

[0030] This invention forms a gas-liquid separation unit 1 by combining a gas separator shell 2, a gas separator liquid inlet pipe 3, and a gas outlet pipe 4. It forms a liquid storage unit 6 by combining a liquid storage shell 7, a liquid storage inlet pipe 8, and a liquid outlet pipe 9. The liquid storage unit 6 is built into the gas-liquid separation space 5 of the gas-liquid separation unit 1, so that the high-temperature and high-pressure liquid refrigerant in the liquid storage space 10 can transfer its latent heat to the low-temperature and low-pressure gas-liquid two-phase refrigerant in the gas-liquid separation space 5, thereby reducing heat loss and increasing refrigeration efficiency.

[0031] The gas separator housing 2 includes an upper end cover 11, a lower end cover 12, and a housing body 13. Both the upper end cover 11 and the lower end cover 12 have an arc-shaped structure. The upper end cover 11 and the lower end cover 12 are flared to form a first welding part 14. The two ends of the housing body 13 are inserted into the upper end cover 11 and the lower end cover 12 and welded to the first welding part 14. The upper end cover 11, the lower end cover 12, and the housing body 13 together form a gas-liquid separation space 5. The first welding part 14 is provided to avoid the formation of gaps after the gas-liquid separation unit 1 is welded, thus ensuring the sealing performance.

[0032] Both the outlet pipe 4 and the gas-liquid inlet pipe 3 pass through the upper end cover 11 and are welded and fixed to the upper end cover 11. One end of the outlet pipe 4 and the gas-liquid inlet pipe 3 are located in the gas-liquid separation space 5, and the other end extends out of the gas-liquid separation space 5. The end of the gas-liquid inlet pipe 3 that extends out of the gas-liquid separation space 5 is provided with a gas-liquid inlet 15. The end of the outlet pipe 4 that is located in the gas-liquid separation space 5 is provided with an inlet 16. The end of the outlet pipe 4 that extends out of the gas-liquid separation space 5 is provided with an outlet 17. The low-temperature and low-pressure gas-liquid two-phase refrigerant enters the gas-liquid separation space 5 through the gas-liquid inlet 15 and the gas-liquid inlet pipe 3. In the gas-liquid separation space 5, the gaseous and liquid states are separated by gravity. The separated gaseous refrigerant enters the outlet pipe 4 through the inlet 16 and is finally discharged through the outlet 17.

[0033] The exhaust pipe 4 includes an inlet section 18, an exhaust section 19, and a connecting section 20. The inlet section 18 is located in the gas-liquid separation space 5. The exhaust section 19 is welded and fixed to the upper end cover 11. The connecting section 20 is used to connect the inlet section 18 and the exhaust section 19. The inlet port 16 is located on the inlet section 18, and the outlet port 17 is located on the exhaust section 19. The exhaust pipe 4 also has an oil return hole 21 and a pressure equalization hole 23. The oil return hole 21 is located on the connecting section 20. A filter assembly 22 is installed in the oil return hole 21. The oil return hole 21 ensures that the separated liquid refrigerant flows back to the compressor. The filter assembly 22 in the oil return hole 21 can filter impurities. The pressure equalization hole 23 is located on the exhaust section 19. The oil return hole 21 and the pressure equalization hole 23 work together to regulate the pressure, control the oil return, and prevent liquid slugging, thereby protecting the compressor.

[0034] The liquid storage shell 7 is a cylindrical structure with narrow ends. The narrow ends of the liquid storage shell 7 form a second welding part 24. The upper end cover 11 and the lower end cover 12 are respectively provided with a first welding port 25. The liquid storage shell 7 is welded to the first welding port 25 through the second welding part 24. The liquid storage inlet pipe 8 and the liquid outlet pipe 9 are located at both ends of the liquid storage shell 7 and are welded and fixed with the second welding part 24. The end of the liquid storage inlet pipe 8 and the liquid outlet pipe 9 that extends out of the liquid storage space 10 is respectively provided with a liquid storage inlet port 27 and a liquid storage outlet port 28.

[0035] In this invention, the low-temperature, low-pressure gas-liquid two-phase refrigerant enters the gas-liquid separation space 5 through the gas-liquid inlet 15 and the gas-liquid inlet pipe 3. In the gas-liquid separation space 5, the gas and liquid phases are separated by gravity. The high-temperature, high-pressure liquid refrigerant enters the storage space 10 through the storage inlet 27. Then, the high-temperature, high-pressure liquid refrigerant exchanges heat with the low-temperature, low-pressure gas-liquid two-phase refrigerant. The low-temperature, low-pressure liquid refrigerant in the gas-liquid separation space 5 absorbs heat and becomes gaseous. Under the suction of the compressor, the gaseous refrigerant enters the compressor through the outlet pipe 4. After heat exchange, the temperature of the high-temperature, high-pressure liquid refrigerant in the storage space 10 decreases, and it finally flows out through the storage outlet 28.

[0036] Example 2

[0037] like Figures 4 to 6 As shown, based on the structure of Embodiment 1, Embodiment 2 makes another design to the structure of the liquid storage unit 6. The cross-section of the liquid storage shell 7 is a U-shaped structure with one end open. The open end of the liquid storage shell 7 is welded and fixed to the upper end cover 11. The liquid storage shell 7 and the upper end cover 11 together form a liquid storage space 10. The upper end cover 11 is provided with a second welding port 26. The liquid inlet pipe 8 and the liquid outlet pipe 9 are welded in the second welding port 26 and communicate with the liquid storage space 10.

[0038] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A structure of a gas separator and liquid reservoir assembly that combines heat exchange, characterized in that: include A gas-liquid separation unit includes a gas separator housing, a gas separator inlet pipe, and a gas outlet pipe. The gas separator housing is provided with a gas-liquid separation space. The gas separator inlet pipe and the gas outlet pipe are fixed on the gas separator housing and communicate with the gas-liquid separation space. The liquid storage unit includes a liquid storage shell, a liquid storage inlet pipe, and a liquid outlet pipe. The liquid storage unit is fixed on the gas-liquid separation unit and built into the gas-liquid separation space. The liquid storage unit has a liquid storage space, and the liquid storage inlet pipe and the liquid outlet pipe are connected to the liquid storage space.

2. The structure of the gas separator and liquid reservoir assembly with heat exchange function according to claim 1, characterized in that: The gas separator housing includes an upper end cover, a lower end cover, and a housing body. The upper end cover and the lower end cover are flared to form a first welded part. The two ends of the housing body are inserted into the upper end cover and the lower end cover and welded to the first welded part. The upper end cover, the lower end cover, and the housing body together form the gas-liquid separation space.

3. The structure of the gas separator and liquid reservoir assembly with heat exchange function according to claim 2, characterized in that: Both the upper and lower end caps are arc-shaped. The air outlet pipe and the gas-liquid inlet pipe pass through the upper end cap and are welded and fixed to the upper end cap. One end of the air outlet pipe and the gas-liquid inlet pipe are located in the gas-liquid separation space, and the other end extends out of the gas-liquid separation space.

4. The structure of the gas separator and liquid reservoir assembly with heat exchange function according to claim 3, characterized in that: The gas-liquid inlet pipe has a gas-liquid inlet at one end extending out of the gas-liquid separation space, the outlet pipe has an inlet at one end located in the gas-liquid separation space, and the outlet pipe has an outlet at one end extending out of the gas-liquid separation space.

5. The structure of a gas separator and liquid reservoir assembly combining heat exchange according to claim 4, characterized in that: The air outlet pipe includes an air inlet section, an air outlet section, and a connecting section. The air inlet section is located in the gas-liquid separation space. The air outlet section is welded and fixed to the upper end cover. The connecting section is used to connect the air inlet section and the air outlet section. The air inlet is located on the air inlet section, and the air outlet is located on the air outlet section.

6. The structure of a gas separator and liquid reservoir assembly combining heat exchange according to claim 5, characterized in that: The air outlet pipe is also provided with an oil return hole, which is located on the connecting section, and a filter assembly is installed in the oil return hole.

7. The structure of a gas separator and liquid reservoir assembly combining heat exchange according to claim 5, characterized in that: The air outlet pipe is also provided with a pressure equalization hole, which is located on the air outlet section.

8. The structure of a gas separator and liquid reservoir assembly combining heat exchange according to claim 2, characterized in that: The liquid storage shell is a cylindrical structure with narrow ends. The narrow ends of the liquid storage shell form a second welding part. The upper end cover and the lower end cover are respectively provided with a first welding port. The liquid storage shell is welded to the first welding port through the second welding part. The liquid inlet pipe and the liquid outlet pipe are located at both ends of the liquid storage shell and are welded and fixed to the second welding part.

9. The structure of a gas separator and liquid reservoir assembly combining heat exchange according to claim 2, characterized in that: The liquid storage shell has a U-shaped cross-section with one end open. The open end of the liquid storage shell is welded and fixed to the upper end cover. The liquid storage shell and the upper end cover together form the liquid storage space. The upper end cover is provided with a second welding port. The liquid inlet pipe and the liquid outlet pipe are welded into the second welding port and communicate with the liquid storage space.

10. The structure of a gas separator and liquid reservoir assembly combining heat exchange according to claim 8 or 9, characterized in that: The liquid inlet pipe and the liquid outlet pipe are respectively provided with a liquid inlet and a liquid outlet at the ends of the liquid storage space.

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