Gas-liquid separator and compression device

Abstract

The application provides a gas-liquid separator and a compression device. The gas-liquid separator is arranged in a casing of a compressor. The gas-liquid separator is arranged above a cylinder assembly and below a driving motor, so that the gas discharged from a compression chamber is discharged from an exhaust port of the compressor after sequentially flowing through the gas-liquid separator and the driving motor; or the gas-liquid separator is arranged above the driving motor, so that the gas discharged from the compression chamber is discharged from the exhaust port of the compressor after sequentially flowing through the driving motor and the gas-liquid separator. The built-in gas-liquid separator solves the problem of excessively high exhaust temperature of the existing compression device with an external gas-liquid separator.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and more specifically, to a gas-liquid separator and a compression device. Background Technology

[0002] A liquid separator, also known as a gas-liquid separator, separates the gas-liquid mixture from the evaporator in the compressor. The separated gas enters the compressor through the separator's outlet, while the separated liquid refrigerant accumulates at the bottom of the separator. The main function of the liquid separator is to prevent liquid refrigerant from directly entering the compressor, thereby preventing liquid slugging.

[0003] When the compressor is running, the compressor's suction chamber draws in the low-temperature, low-pressure gaseous refrigerant separated by the gas-liquid separator. This low-temperature, low-pressure gaseous refrigerant is compressed in the compression chamber, becoming a high-temperature, high-pressure gas; the high-temperature, high-pressure gas is then discharged from the compressor's exhaust port. As the high-temperature, high-pressure gas flows from the compression chamber towards the exhaust port, it passes through the motor. The motor generates heat during operation, and the high-temperature, high-pressure gas flowing through the motor carries away some of this heat, causing the temperature of the high-temperature, high-pressure gas to rise further.

[0004] If the compressor discharges excessively hot gas, it will reduce refrigeration efficiency and performance. It will also increase the compressor's workload, leading to higher energy consumption and reduced energy efficiency. Furthermore, excessively high discharge temperatures increase the likelihood of carbonization in the compressor's lubricating oil, reducing internal lubrication and increasing wear and tear, ultimately shortening the equipment's lifespan. Prolonged overheating and high-temperature operation will also affect the motor's coils, causing aging and damage to the coil insulation, and in severe cases, burnout.

[0005] The existing gas-liquid separator is located outside the compressor and is an external gas-liquid separator.

[0006] like Figure 5 As shown, gas-liquid separator 1 is an external gas-liquid separator. Figure 5 The arrows in the diagram indicate the gas flow path. The gas enters from the suction port 2 of the gas-liquid separator 1, then enters the pump body for compression. The compressed high-temperature and high-pressure gas is discharged from the exhaust port inside the pump body and enters the compressor cavity. It then continues to pass through the gap between the stator and rotor, as well as the gas flow holes inside the rotor, and undergoes heat exchange. Finally, it is discharged from the compressor from the exhaust port 3 located on the top cover. Summary of the Invention

[0007] The main objective of this invention is to provide a gas-liquid separator and a compression device to solve the problem of excessively high exhaust temperature in existing compression devices with external gas-liquid separators.

[0008] To achieve the above objectives, according to one aspect of the present invention, a gas-liquid separator is provided, applicable to a compressor; the compressor includes a cylinder assembly and a drive motor; the cylinder assembly forms an intake chamber and a compression chamber; the outlet of the gas-liquid separator communicates with the intake chamber, and the compression chamber compresses the refrigerant; the gas-liquid separator is disposed within the compressor housing. The gas-liquid separator is located above the cylinder assembly and below the drive motor, such that gas discharged from the compression chamber flows sequentially through the gas-liquid separator and the drive motor before being discharged from the compressor's exhaust port; alternatively, the gas-liquid separator is located above the drive motor, such that gas discharged from the compression chamber flows sequentially through the drive motor and the gas-liquid separator before being discharged from the compressor's exhaust port.

[0009] Furthermore, the cylinder assembly includes a cylinder, an upper flange, and a lower flange, with the upper flange and lower flange respectively positioned above and below the cylinder; the upper flange, cylinder, and lower flange together form an intake chamber and a compression chamber; and a gas-liquid separator is positioned above the upper flange.

[0010] Furthermore, the gas-liquid separator includes a body and an exhaust pipe. The body has a separation chamber, a first end of the exhaust pipe is connected to the separation chamber, and a second end of the exhaust pipe is connected to the intake chamber.

[0011] Furthermore, the bottom of the main body has a second opening that communicates with the separation chamber, and the first end of the exhaust pipe extends into the separation chamber through the second opening.

[0012] Furthermore, at least a portion of the exhaust pipe has its axial direction parallel to the vertical direction.

[0013] Furthermore, the vertical height of the separation chamber is H, and the vertical distance between the first port of the exhaust pipe and the bottom wall of the separation chamber is h; 0.5≤h / H≤0.8.

[0014] Furthermore, the gas-liquid separator includes a body section, which has a separation chamber. The body section has an annular structure, and the separation chamber is an annular cavity.

[0015] Furthermore, a first recess is provided on the outer peripheral wall of the separation cavity, extending outward away from its inner peripheral wall; there are one or more first recesses, and multiple first recesses are distributed circumferentially along the separation cavity. And / or, a second recess is provided on the inner peripheral wall of the separation cavity, extending inward away from its outer peripheral wall; there are one or more second recesses, and multiple second recesses are distributed circumferentially along the separation cavity.

[0016] Furthermore, the gas-liquid separator includes a body portion having a separation chamber and a first opening communicating with the separation chamber. The separation chamber is connected to the second end of the suction pipe through the first opening. The first end of the suction pipe is located outside the compressor, and the first port of the suction pipe is its air inlet.

[0017] Furthermore, the main body has a first opening that communicates with the separation chamber, and the separation chamber communicates with the second end of the inhalation tube through the first opening; along the circumference of the main body, the included angle between the first opening and the second opening is greater than 90 degrees and less than or equal to 180 degrees.

[0018] According to another aspect of the present invention, a compression device is provided, which includes a compressor and the gas-liquid separator described above.

[0019] Applying the technical solution of this invention, the high-temperature and high-pressure gas discharged from the compression chamber will first flow through the gas-liquid separator before flowing through the drive motor. Since the temperature of the gas-liquid separator is relatively low, it will first play a certain role in cooling down the temperature of the high-temperature and high-pressure gas. When the gas that has been cooled down first flows through the drive motor, even if it absorbs some of the heat from the drive motor and heats up, it will not cause the gas temperature to be too high, that is, the exhaust temperature of the compressor will not be too high.

[0020] Alternatively, the high-temperature, high-pressure gas discharged from the compression chamber first flows through the drive motor and then through the gas-liquid separator. When the gas flows through the drive motor, it absorbs some of the heat from the drive motor and its temperature rises. When the heated gas flows through the gas-liquid separator, the lower-temperature gas-liquid separator will cool the heated gas to a certain extent, so that the exhaust temperature of the compressor will not be too high.

[0021] The built-in gas-liquid separator of this application solves the problem of excessively high exhaust temperature in existing compression equipment with external gas-liquid separators. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0023] Figure 1 A schematic diagram of the compression device according to the present invention is shown;

[0024] Figure 2 A longitudinal sectional view of the gas-liquid separator according to the present invention is shown;

[0025] Figure 3 A schematic diagram of the gas-liquid separator according to the present invention is shown;

[0026] Figure 4A schematic diagram of the separation chamber (provided with a first recess and a second recess) of the gas-liquid separator according to the present invention is shown.

[0027] Figure 5 A schematic diagram of the structure of an existing compression device (including an external gas-liquid separator) is shown;

[0028] Figure 6 It shows Figure 5 A schematic diagram of the external gas-liquid separator.

[0029] The above figures include the following reference numerals:

[0030] 1. Gas-liquid separator; 2. Inlet; 3. Outlet; 4. Straight inlet pipe; 5. Bend inlet pipe; 6. Filter assembly; 7. Separating chamber;

[0031] 100. Gas-liquid separator;

[0032] 10. Main body; 11. Separation cavity; 12. First opening; 13. Second opening; 14. Preset center surface; 15. First recess; 16. Second recess; 17. Annular hole;

[0033] 20. Exhaust pipe; 30. Intake pipe;

[0034] 200. Compressor; 210. Cylinder assembly; 2101. Cylinder; 2102. Upper flange; 21021. Sleeve section; 2103. Lower flange; 2104. Roller;

[0035] 2400, casing; 240, top cover; 250, bottom cover; 260, cylinder;

[0036] 220, drive motor; 230, exhaust port; 270, crankshaft; 2701, main shaft; 280, center axis. Detailed Implementation

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0039] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0040] Example 1

[0041] This invention provides a gas-liquid separator 100, please refer to... Figures 1 to 4 The gas-liquid separator 100 is suitable for the compressor 200; the compressor 200 includes a cylinder assembly 210 and a drive motor 220; the cylinder assembly 210 is used to form an intake chamber and a compression chamber; the outlet of the gas-liquid separator 100 is used to communicate with the intake chamber so that the intake chamber can draw in the gaseous refrigerant separated by the gas-liquid separator 100; the compression chamber is used to compress the gaseous refrigerant.

[0042] Specifically, the cylinder assembly 210 includes a cylinder 2101, an upper flange 2102, and a lower flange 2103, with the upper flange 2102 and the lower flange 2103 respectively positioned above and below the cylinder 2101; the upper flange 2102, the cylinder 2101, and the lower flange 2103 together form a working chamber; the working chamber includes an intake chamber and a compression chamber.

[0043] The gas-liquid separator 100 is installed inside the housing 2400 of the compressor 200; the gas-liquid separator 100 is located above the cylinder assembly 210 and below the drive motor 220, so that the gas discharged from the compression chamber of the cylinder assembly 210 flows through the gas-liquid separator 100 and the drive motor 220 in sequence before being discharged from the exhaust port 230 of the compressor 200.

[0044] During operation, the compressor 200 draws in low-temperature, low-pressure gaseous refrigerant separated by the gas-liquid separator 100 into its suction chamber. This refrigerant is then compressed within the compression chamber of the cylinder assembly 210, transforming into high-temperature, high-pressure gas. This high-temperature, high-pressure gas is then discharged from the compressor 200's exhaust port 230. As the high-temperature, high-pressure gas flows from the compression chamber towards the exhaust port 230, it passes through the drive motor 220. The drive motor 220 generates heat during operation, and the high-temperature, high-pressure gas flowing through it carries away some of this heat, further increasing the gas's temperature.

[0045] If the discharge gas temperature of the compressor is too high during operation, it will lead to reduced refrigeration efficiency and decreased refrigeration performance. It will also increase the workload of compressor 200, resulting in increased energy consumption and reduced energy efficiency. Furthermore, excessively high compressor discharge temperature increases the likelihood of carbonization of the compressor's lubricating oil at high temperatures, leading to decreased internal lubrication performance, increased wear and tear, and a lower failure rate, ultimately reducing the equipment's lifespan. If the compressor operates at excessively high discharge temperatures for extended periods, the coils of the drive motor 220 will also be affected by thermal expansion and stress, causing aging and damage to the coil insulation material, and in severe cases, burnout.

[0046] In this embodiment, the high-temperature, high-pressure gas discharged from the compression chamber flows through the gas-liquid separator 100 before passing through the drive motor 220. Since the gas-liquid separator 100 has a lower temperature, it first cools the high-temperature, high-pressure gas. Even if the cooled gas absorbs some heat from the drive motor 220 and heats up when passing through it, the gas temperature will not be too high, meaning the exhaust temperature of the compressor 200 will not be too high. The gas-liquid separator 100 in this application is a built-in gas-liquid separator, which solves the problem of excessively high exhaust temperature in existing compression equipment with external gas-liquid separators.

[0047] It should be noted that when the gas discharged from the compression chamber flows through the gas-liquid separator 100, it flows through the outer wall surface of the gas-liquid separator 100; when the gas discharged from the compression chamber flows through the drive motor 220, it flows through the outer wall surface of the drive motor 220.

[0048] It should be noted that because the gas-liquid separator draws in low-temperature, low-pressure gas, the temperature of the gas-liquid separator is relatively low, meaning that the gas-liquid separator itself is in a low-temperature state.

[0049] Specifically, the gas-liquid separator 100 is positioned above the upper flange 2102.

[0050] In this embodiment, the gas-liquid separator 100 includes a body part 10 and an exhaust pipe 20. The body part 10 has a separation chamber 11. The first end of the exhaust pipe 20 is connected to the separation chamber 11, and the second end of the exhaust pipe 20 is used to connect to the intake chamber. That is, the second port of the exhaust pipe 20 is the outlet of the gas-liquid separator 100.

[0051] Specifically, the bottom of the main body 10 has a second opening 13 that communicates with the separation chamber 11, and the first end of the exhaust pipe 20 extends into the separation chamber 11 through the second opening 13. In this way, there is a certain height difference between the first end of the exhaust pipe 20 and the bottom wall of the separation chamber 11. This height difference can prevent the liquid from directly entering the compressor's suction chamber through the exhaust pipe 20 when the separation chamber 11 is drawing in liquid gas; the liquid will be deposited at the bottom of the separation chamber 11.

[0052] In the specific implementation process, the gas-liquid mixture entering the separation chamber 11 undergoes a change in flow field velocity, droplet size and distribution during flow, which weakens the droplet following ability and causes the liquid and gas in the gas-liquid mixture to separate. The separated liquid is deposited at the bottom of the separation chamber 11 under the action of gravity. The separated gas flows upward to enter the exhaust pipe 20 through the first port of the exhaust pipe 20 and then enters the intake chamber.

[0053] Optionally, the axial direction of the exhaust pipe 20 is parallel to the vertical direction.

[0054] Optionally, the exhaust pipe 20 is welded to the body 10.

[0055] Optionally, the main body 10 has a preset center surface 14, which is perpendicular to the vertical direction; the preset center surface 14 divides the main body 10 into two parts, and the two parts of the main body 10 are symmetrically arranged with respect to the preset center surface 14.

[0056] In this embodiment, the main body 10 has a ring-shaped structure, and the separation cavity 11 is an annular cavity.

[0057] Optionally, the central axis of the main body 10 coincides with or is parallel to the central axis of the compressor 200. Figure 1 The central axis 280 is the central axis of the compressor 200.

[0058] In this embodiment, the main body 10 has a first opening 12 that communicates with the separation chamber 11; the separation chamber 11 is connected to the second end of the suction pipe 30 through the first opening 12; the first end of the suction pipe 30 is located outside the compressor 200, and the first port of the suction pipe 30 is its air inlet.

[0059] Specifically, the second end of the inhalation tube 30 is connected to the first opening 12, or the second end of the inhalation tube 30 extends into the separation chamber 11 through the first opening 12.

[0060] Optionally, the axial direction of the inhalation tube 30 is parallel to the horizontal direction.

[0061] Optionally, the central axis of the inhalation tube 30 is located on a preset central plane 14.

[0062] Optionally, along the circumference of the body portion 10, the included angle between the first opening 12 and the second opening 13 is greater than 90 degrees and less than or equal to 180 degrees.

[0063] In this embodiment, optionally, as Figure 4 As shown, a first recess 15 is recessed on the outer peripheral wall of the separation cavity 11, away from its inner peripheral wall. There are one or more first recesses 15. When there are multiple first recesses 15, the multiple first recesses 15 are distributed circumferentially along the separation cavity 11.

[0064] In this embodiment, optionally, as Figure 4 As shown, a second recess 16 is recessed on the inner peripheral wall of the separation cavity 11 towards the inner side away from its outer peripheral wall. There are one or more second recesses 16. When there are multiple second recesses 16, the multiple second recesses 16 are distributed circumferentially along the separation cavity 11.

[0065] By providing the first recess 15 and / or the second recess 16, the area of ​​the outer peripheral wall and / or inner peripheral wall of the separation chamber 11 can be increased, so that the gas drawn into the separation chamber 11 can contact the cavity wall of the separation chamber 11 with a larger area when it flows in the separation chamber 11. This is beneficial for the moisture or liquid refrigerant in the gas to adhere to the cavity wall of the separation chamber 11, and then liquefy and deposit upon cooling.

[0066] Optionally, the first recess 15 is an arc-shaped groove, the central axis of which is parallel to or coincides with the central axis of the body portion 10.

[0067] Optionally, the second recess 16 is an arc-shaped groove, the central axis of which is parallel to or coincides with the central axis of the body portion 10.

[0068] In this embodiment, optionally, depending on the operating environment of the compressor, a filter mechanism is provided in the separation chamber 11. The filter mechanism is located on the side opposite to the first end of the second end of the suction pipe 30, so that the gas in the suction pipe 30 enters the separation chamber 11 after being filtered by the filter mechanism.

[0069] Specifically, the filter mechanism includes a filter screen.

[0070] Specifically, the filter mechanism is positioned close to the first opening 12.

[0071] As can be seen from the above description, this embodiment achieves the following technical effects:

[0072] Low-temperature, low-pressure gas enters the separation chamber 11 of the gas-liquid separator 100 through the suction pipe 30, and then enters the cylinder 2101 through the exhaust pipe 20. After being compressed by the crankshaft 270 and rollers 2104, it forms a high-temperature, high-pressure gas. The high-temperature, high-pressure gas is discharged through the gas outlet on the upper flange. The high-temperature, high-pressure gas discharged from the gas outlet first passes through the area where the gas-liquid separator 100 is located, which is always in a low-temperature state, causing a certain degree of cooling. The cooled gas continues to flow towards the compressor's exhaust port 230. When it passes through the area where the drive motor 220 is located, it exchanges heat with the drive motor 220, carrying away some of the heat from the drive motor 220. Compared with the excessively high temperature of the gas discharged from the compressor of the existing external gas-liquid separator, the gas temperature discharged from the compressor of the built-in gas-liquid separator of this application will not be too high.

[0073] The built-in gas-liquid separator design, while retaining its original function, greatly reduces the probability of the compressor experiencing excessively high exhaust temperatures, which helps to increase the compressor's service life; in addition, it enables the lubricating oil to better lubricate the parts and improve the compressor's performance.

[0074] Furthermore, since the cooled gas exchanges heat with the drive motor 220, the temperature of the drive motor 220 can be reduced to a certain extent, thereby making the operation of the drive motor 220 more stable. At the same time, the temperature of the cylinder 260 can also be reduced.

[0075] In addition, the built-in design of the gas-liquid separator can reduce the space occupied by the compression equipment, which is conducive to the miniaturization of the compression equipment, making the compression equipment more adaptable to various systems.

[0076] like Figure 5 and Figure 6 As shown, due to current assembly issues, the exhaust port of the existing gas-liquid separator 1 is designed as a bent pipe. After the gas enters from the intake port 2, it first passes through the intake straight pipe 4, then exits from the exhaust bent pipe 5, and then enters the compressor pump body. Because the intake port 2 and the intake straight pipe 4 are on the same central axis, if the intake gas contains some liquid, the liquid can easily enter the compressor, causing the compressor to rust. Therefore, a filter assembly 6 is also provided above the intake straight pipe 4. The function of the filter assembly 6 is to allow the liquid in the intake gas to enter the liquid distribution chamber 7 from all sides without affecting the gas flow.

[0077] The built-in gas-liquid separator of this application is directly mounted above the pump body, thus simplifying the structure and eliminating the need for bends. Furthermore, since the central axes of the first opening 12 and the exhaust pipe 20 are normal, there is no situation where liquid directly enters the exhaust pipe 20 when gas is drawn in, thus eliminating the need for a filter assembly. When the separation chamber 11 draws in gas mixed with liquid, the liquid will settle at the bottom of the separation chamber 11 due to gravity, while the drawn-in gas remains unaffected and is discharged from the exhaust pipe 20 after flowing through the separation chamber 11.

[0078] The vertical height H of the separation chamber 11 can be adjusted according to the compressor's displacement to meet different liquid separation requirements. Furthermore, 0.5 ≤ h / H ≤ 0.8 to meet the suction flow requirements; where h is the vertical distance between the first port of the exhaust pipe 20 and the bottom wall of the separation chamber 11.

[0079] Optionally, when h / H is 0.5, the first port of the exhaust pipe 20 is located at the preset center plane 14; that is, the plane where the first port of the exhaust pipe 20 is located is located on the preset center plane 14.

[0080] It should be noted that the built-in gas-liquid separator of this application also relies on gravity for gas-liquid separation. The gas-liquid mixture flows into the separation chamber 11 and, during the process of flowing towards the exhaust pipe 20, the liquid adheres to the wall and sinks.

[0081] Example 2

[0082] The difference between Example 2 and Example 1 is as follows:

[0083] The gas-liquid separator is located above the drive motor 220 so that the gas discharged from the compression chamber flows through the drive motor 220 and the gas-liquid separator in sequence before being discharged from the exhaust port 230 of the compressor 200. Specifically, the high-temperature, high-pressure gas discharged from the compression chamber first flows through the drive motor 220 and then through the gas-liquid separator. As the gas flows through the drive motor 220, it absorbs some of the heat and becomes warmer. When the heated gas then flows through the gas-liquid separator, the lower temperature of the separator cools the heated gas, thus preventing the exhaust temperature of the compressor 200 from becoming excessively high.

[0084] The gas-liquid separator in this embodiment can also solve the problem of excessively high exhaust temperature in existing compression equipment with external gas-liquid separators.

[0085] In this embodiment, at least a portion of the exhaust pipe 20 has its axial direction parallel to the vertical direction.

[0086] In this embodiment, the main body 10 is not limited to a ring structure, and the separation cavity 11 is not limited to a ring cavity.

[0087] In this embodiment, the gas-liquid separator is installed on the drive motor 220. In this way, the gas-liquid separator will be in contact with the drive motor 220 and can also play a certain role in cooling the drive motor 220.

[0088] Example 3

[0089] The present invention also provides a compression device, such as Figures 1 to 4 As shown, it includes a compressor 200, a suction pipe 30, and a gas-liquid separator, which is the gas-liquid separator in Embodiment 1 or Embodiment 2.

[0090] Optionally, compressor 200 is a rolling rotor compressor.

[0091] Specifically, the exhaust port 230 is located on top of the compressor 200.

[0092] Specifically, the housing 2400 includes an upper cover 240, a lower cover 250, and a cylindrical body 260, with the upper cover 240 and the lower cover 250 respectively disposed at the upper and lower ends of the cylindrical body 260.

[0093] Specifically, compressor 200 also includes a top cover assembly, a housing assembly, a crankshaft 270, and an upper flange; cylinder assembly 210 also includes rollers 2104; top cover assembly includes a top cover 240; and housing assembly includes a cylinder 260.

[0094] Specifically, when the gas-liquid separator is the gas-liquid separator of Embodiment 1, the main shaft 2701 of the crankshaft 270 is located in the annular hole 17 of the body part 10.

[0095] Specifically, the upper flange includes an upper flange 2102 and a sleeve portion 21021, with the sleeve portion 21021 connected above the upper flange 2102.

[0096] Optionally, the upper flange 2102 and the sleeve portion 21021 are integrally formed structures.

[0097] Specifically, when the gas-liquid separator is the gas-liquid separator of Embodiment 1, the sleeve portion 21021 is located inside the annular hole 17 of the body portion 10.

[0098] Specifically, a gas outlet is provided on the upper flange, which is connected to the compression chamber so that the compressed high-temperature and high-pressure gas can be discharged through the gas outlet.

[0099] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0100] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0101] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A gas-liquid separator suitable for a compressor (200); the compressor (200) includes a cylinder assembly (210) and a drive motor (220); the cylinder assembly (210) is used to form an intake chamber and a compression chamber; the outlet of the gas-liquid separator is used to communicate with the intake chamber, and the compression chamber is used to compress a refrigerant; characterized in that, The gas-liquid separator is used to be installed inside the housing (2400) of the compressor (200); The gas-liquid separator is located above the cylinder assembly (210) and below the drive motor (220) so that the gas discharged from the compression chamber flows through the gas-liquid separator and the drive motor (220) in sequence before being discharged from the exhaust port (230) of the compressor (200). or The gas-liquid separator is located above the drive motor (220) so that the gas discharged from the compression chamber flows through the drive motor (220) and the gas-liquid separator in sequence before being discharged from the exhaust port (230) of the compressor (200).

2. The gas-liquid separator according to claim 1, characterized in that, The cylinder assembly (210) includes a cylinder (2101), an upper flange (2102), and a lower flange (2103), with the upper flange (2102) and lower flange (2103) respectively disposed above and below the cylinder (2101); the upper flange (2102), the cylinder (2101), and the lower flange (2103) together form the intake chamber and the compression chamber; the gas-liquid separator is disposed above the upper flange (2102).

3. The gas-liquid separator according to claim 1, characterized in that, The gas-liquid separator includes a body (10) and an exhaust pipe (20). The body (10) has a separation chamber (11). The first end of the exhaust pipe (20) is connected to the separation chamber (11), and the second end of the exhaust pipe (20) is connected to the intake chamber.

4. The gas-liquid separator according to claim 3, characterized in that, The bottom of the body part (10) has a second opening (13) communicating with the separation chamber (11), and the first end of the exhaust pipe (20) extends into the separation chamber (11) through the second opening (13).

5. The gas-liquid separator according to claim 4, characterized in that, At least a portion of the exhaust pipe (20) has its axial direction parallel to the vertical direction; and / or The vertical height of the separation chamber (11) is H, and the vertical distance between the first port of the exhaust pipe (20) and the bottom wall of the separation chamber (11) is h; 0.5≤h / H≤0.

8.

6. The gas-liquid separator according to claim 1, characterized in that, The gas-liquid separator includes a body part (10), the body part (10) has a separation chamber (11), the body part (10) has an annular structure, and the separation chamber (11) is an annular cavity.

7. The gas-liquid separator according to claim 6, characterized in that, The outer peripheral wall of the separation cavity (11) is recessed to the outer side away from its inner peripheral wall; there are one or more first recesses (15), and multiple first recesses (15) are distributed circumferentially along the separation cavity (11); and / or The inner peripheral wall of the separation cavity (11) is recessed to the inner side away from its outer peripheral wall; there are one or more second recesses (16), and multiple second recesses (16) are distributed circumferentially along the separation cavity (11).

8. The gas-liquid separator according to claim 1, characterized in that, The gas-liquid separator includes a body part (10), which has a separation chamber (11) and a first opening (12) communicating with the separation chamber (11). The separation chamber (11) is connected to the second end of the suction pipe (30) through the first opening (12). The first end of the suction pipe (30) is located outside the compressor (200), and the first port of the suction pipe (30) is its air inlet.

9. The gas-liquid separator according to claim 4, characterized in that, The main body (10) has a first opening (12) communicating with the separation chamber (11), and the separation chamber (11) is connected to the second end of the suction tube (30) through the first opening (12); Along the circumference of the body portion (10), the included angle between the first opening (12) and the second opening (13) is greater than 90 degrees and less than or equal to 180 degrees.

10. A compression device, characterized in that, It includes a compressor (200) and a gas-liquid separator according to any one of claims 1 to 9.

Images