Oil-gas separation structure and compressor

Abstract

The present invention discloses an oil-gas separation structure and a compressor. The oil-gas separation structure comprises: an oil distribution pipe and an umbrella-shaped separator, wherein the umbrella-shaped separator is disposed within the oil distribution pipe; the umbrella-shaped separator comprises a diverter pipe and at least one oil-blowing nozzle extending through the oil distribution pipe, wherein the oil-blowing nozzles are disposed at the upper end of the diverter pipe and communicate with the diverter pipe, with the distal ends of the oil-blowing nozzles facing downward. In an embodiment of the present invention, by disposing the umbrella-shaped separator within the oil distribution pipe, oil droplets adhering to the wall of the oil distribution chamber can be blown off to the bottom of the chamber. This prevents oil droplets adhering to the wall of the oil distribution chamber from being carried again by the gas and discharged from the exhaust port, effectively improving the return speed of the refrigeration oil and the oil-gas separation effect.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to an oil-gas separation structure and a compressor. Background Art

[0002] A scroll compressor is a positive displacement compressor. Its compression components consist of an orbiting scroll and a stationary scroll. Its operating principle is to utilize the relative orbital motion of the orbiting and stationary scrolls to create a continuous change in the enclosed volume, thereby compressing the gas. Scroll compressors feature small size, light weight, low energy consumption, and stable compression. They are primarily used in electric vehicle air conditioning and refrigeration systems, as well as other applications requiring compressed gas.

[0003] During the operation of the scroll compressor, the lubricating oil will be discharged into the condenser and evaporator along with the compressed gas and adhere to their surfaces, thereby affecting the heat exchange between the condenser and evaporator and the outside world, reducing the working efficiency of the air-conditioning system, and causing adverse effects on the entire air-conditioning system. Existing scroll compressors usually use oil-gas separators for oil separation; specifically, the oil-gas mixture enters the oil-gas separator tangentially at a certain speed, and rotates in the oil separation area. The oil droplets are thrown out of the gas under the action of centrifugal inertia and adhere to the wall of the oil separation cavity. As the oil droplets accumulate on the wall, they eventually fall to the bottom of the oil-gas separator and enter the oil return channel; however, this oil-gas separation method may cause the oil droplets on the wall to be carried away by the gas and discharged from the exhaust port before they have time to accumulate, resulting in poor oil-gas separation effect.

[0004] Therefore, the existing oil-gas separator has the problem of poor oil-gas separation effect. Summary of the Invention

[0005] The purpose of the present invention is to provide an oil-gas separation structure and a compressor, aiming to solve the problem of poor oil-gas separation effect in existing oil-gas separators.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows: an oil-gas separation structure, the oil-gas separation structure comprising: an oil distribution pipe and an umbrella-shaped separator, the umbrella-shaped separator being arranged in the oil distribution pipe;

[0007] The umbrella-shaped separator includes a diverter pipe and at least one oil blowing nozzle penetrating the diverter pipe. The oil blowing nozzles are arranged at the upper end of the diverter pipe and communicate with the diverter pipe, and the ends of the oil blowing nozzles face downward.

[0008] Furthermore, a diversion port is provided at the lower end of the diversion pipe;

[0009] The diverter tube is a truncated cone structure, and the cross-sectional radius of the diverter tube increases gradually toward one end of the diverter port.

[0010] Furthermore, the included angle between the busbar of the shunt pipe and the vertical axis is 1° to 10°.

[0011] Furthermore, the angle between the axial direction of the oil blowing nozzle and the vertical axis is 10° to 50°.

[0012] Furthermore, a porous medium is provided at one end of the oil blowing nozzle that is not connected to the diverter pipe, and the porous medium is provided in the oil blowing nozzle.

[0013] Furthermore, the oil distribution pipe includes a connecting pipe and an oil distribution pipe body, and the connecting pipe is arranged at the upper end of the oil distribution pipe body;

[0014] The connecting pipe and the oil distribution pipe body are both cylindrical structures. The cross-sectional radius of the connecting pipe is larger than the cross-sectional radius of the oil distribution pipe body. The connecting pipe is transitionally connected to the oil distribution pipe body.

[0015] Furthermore, the outer side wall of the umbrella-shaped separator is made of oleophilic material.

[0016] To achieve the above-mentioned object, the second technical solution adopted by the present invention is to provide a compressor, comprising a housing and a front end cover, wherein the housing and the front end cover are combined to form an inner cavity of the compressor, and the inner sidewall of the front end cover is combined to form an oil separation cavity, wherein the oil separation cavity is provided with the above-mentioned oil-gas separation structure;

[0017] The front end cover is provided with an oil separation chamber air inlet, and the compressor inner cavity is communicated with the oil separation chamber through the oil separation chamber air inlet.

[0018] Furthermore, the housing is provided with an air inlet communicating with the inner cavity of the compressor;

[0019] A bracket is provided in the inner cavity of the compressor, and a moving plate and a static plate are sequentially provided on a side of the bracket close to the front end cover.

[0020] Furthermore, an oil return port is provided at the lower end of the front end cover, and the oil return port is communicated with the oil separation chamber;

[0021] The lower end of the static plate is provided with a first oil return channel and a second oil return channel. The bracket and the movable plate are combined to form a back pressure chamber. The oil return port, the first oil return channel, the second oil return channel and the back pressure chamber are connected in sequence.

[0022] The present invention discloses an oil-gas separation structure and a compressor. The oil-gas separation structure comprises: an oil distribution pipe and an umbrella-shaped separator, wherein the umbrella-shaped separator is disposed within the oil distribution pipe; the umbrella-shaped separator comprises a diverter pipe and at least one oil-blowing nozzle extending through the oil distribution pipe, wherein the oil-blowing nozzles are disposed at the upper end of the diverter pipe and communicate with the diverter pipe, with the distal ends of the oil-blowing nozzles facing downward. In an embodiment of the present invention, by disposing the umbrella-shaped separator within the oil distribution pipe, oil droplets adhering to the wall of the oil distribution chamber can be blown off to the bottom of the chamber. This prevents oil droplets adhering to the wall of the oil distribution chamber from being carried again by the gas and discharged from the exhaust port, effectively improving the return speed of the refrigeration oil and the oil-gas separation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A schematic diagram of a compressor provided in an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of the fluid flow direction of the oil-gas separation structure provided by an embodiment of the present invention;

[0026] Figure 3 A schematic diagram of an oil-gas separation structure provided by an embodiment of the present invention;

[0027] Figure 4 Another schematic diagram of the oil-gas separation structure provided in an embodiment of the present invention.

[0028] Among them, the reference numerals in the figures are as follows:

[0029] 1. Housing; 11. Air inlet; 2. Front cover; 21. Oil distribution chamber air inlet; 22. Oil distribution chamber; 23. Exhaust port; 24. Oil return port; 3. Bracket; 4. Moving plate; 5. Static plate; 51. First oil return channel; 52. Second oil return channel; 6. Oil distribution pipe; 61. Oil distribution pipe air inlet; 7. Umbrella separator; 71. Oil blowing nozzle; 72. Diverter port; 73. Diverter pipe; 74. Porous medium; 8. Back pressure chamber. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0032] It should also be understood that the terms used in the present specification are only for the purpose of describing particular embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0033] It should be further understood that the term "and / or" used in the present description and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0034] See also Figures 1 to 3 , Figure 1 A schematic diagram of a compressor provided in an embodiment of the present invention; Figure 2 A schematic diagram of the fluid flow direction of the oil-gas separation structure provided by an embodiment of the present invention; Figure 3 Schematic diagram of the oil and gas separation structure provided by the embodiment of the present invention. Figures 1 to 3 As shown, the present invention proposes an oil-gas separation structure, which includes: an oil distribution pipe 6 and an umbrella-shaped separator 7, wherein the umbrella-shaped separator 7 is arranged in the oil distribution pipe 6; the umbrella-shaped separator 7 includes a diversion pipe 73 and at least one oil blowing nozzle 71 passing through the oil distribution pipe 6, wherein the oil blowing nozzle 71 is arranged at the upper end of the diversion pipe 73 and is connected to the diversion pipe 73, and the end of the oil blowing nozzle 71 faces downward.

[0035] In this embodiment, the oil-gas separation structure is arranged in the oil separation chamber, and the oil-gas separation structure includes: an oil distribution pipe 6 and an umbrella-shaped separator 7, the umbrella-shaped separator 7 is arranged in the oil distribution pipe 6; the umbrella-shaped separator 7 includes a diverter pipe 73 and at least one oil blowing nozzle 71 passing through the oil distribution pipe 6, the oil blowing nozzle 71 is arranged at the upper end of the diverter pipe 73 and is connected to the diverter pipe 73; specifically, Figure 3As shown, the umbrella-shaped separator 7 includes a diverter pipe 73 and two oil blowing nozzles 71 that penetrate the oil distribution pipe 6. The two oil blowing nozzles 71 are arranged along the circumference of the diverter pipe 73, and the ends of the oil blowing nozzles 71 face downward. Specifically, the lower end of the oil distribution pipe 6 is provided with an oil distribution pipe air inlet 61, and the lower end of the diverter pipe 73 is provided with a diverter port 72. After the oil-gas mixture enters the oil distribution chamber 22 tangentially at a certain speed, it rotates in the oil distribution chamber 22. In the process of continuously spiraling downward, the oil droplets in the oil-gas mixture will be discharged by the centrifugal force. The oil droplets are thrown out by the action of the elastic force, and thus adhere to the inner wall of the oil separation chamber 22. As the number of adhered and accumulated oil droplets increases, the oil droplets will slowly fall to the bottom of the oil separation chamber 22. The gas after the oil droplets are thrown out will still carry a small part of the oil droplets. When the gas moves upward to the oil separation pipe inlet 61, part of the gas will be diverted by the diverter port 72. Most of the gas that is not diverted will flow upward along the inner wall of the oil separation pipe 6 and be discharged from the compressor. The small part of the gas that is diverted will rush into the top of the diverter pipe 73 and then be dispersed by the oil blowing nozzle 71 (for details, please refer to Figure 2 ), since the end of the oil blowing nozzle 71 is downward, that is, the angle between the axial direction of the oil blowing nozzle 71 and the vertical axis is an acute angle, the gas can be accelerated, and the accelerated gas is ejected from the oil blowing nozzle 71, which can blow the oil droplets adhering to the wall of the oil separation chamber 22 to the bottom of the oil separation chamber 22, which can effectively increase the return speed of the refrigeration oil, reduce the oil content of the exhaust gas, reduce the refrigeration oil loss, and improve the reliability of the compressor operation.

[0036] In the embodiment of the present invention, the umbrella-shaped separator 7 is arranged in the oil separation pipe 6 to blow the oil droplets adhered to the wall of the oil separation chamber 22 to the bottom of the oil separation chamber 22, thereby preventing the oil droplets adhered to the wall of the oil separation chamber 22 from being carried by the gas again and discharged from the exhaust port 23, thereby effectively improving the oil return speed of the refrigeration oil and the oil-gas separation effect.

[0037] In one embodiment, if Figures 1 to 3 As shown, a diversion port 72 is provided at the lower end of the diversion pipe 73 ; the diversion pipe 73 is a truncated cone structure, and the cross-sectional radius of the diversion pipe 73 increases gradually toward one end of the diversion port 72 .

[0038] In this embodiment, after the oil-gas mixture enters the oil separation chamber 22 tangentially at a certain speed, it rotates in the oil separation chamber 22. In the process of continuously spiraling downward, the oil droplets in the oil-gas mixture will be thrown out under the action of centrifugal inertia, and thus adhere to the inner wall of the oil separation chamber 22. As the number of adhered and accumulated oil droplets increases, the oil droplets will slowly fall to the bottom of the oil separation chamber 22; the gas after the oil droplets are thrown out will still contain a small part of the oil droplets. When the gas moves upward to the oil separation pipe inlet 61, part of the gas will be diverted by the diversion port 72, and most of the gas that has not been diverted will flow upward along the inner wall of the oil separation pipe 6 to be discharged from the compressor, and the small part of the gas that has been diverted will be discharged from the diversion port 7 2 flows into the diverter pipe 73. Since the cross-sectional radius of the diverter pipe 73 gradually increases toward one end of the diverter opening 72, the gas can be accelerated. After the acceleration, the gas rushes into the top end of the diverter pipe 73 and is dispersed by the oil blowing nozzle 71. Since the end of the oil blowing nozzle 71 is downward, that is, the angle between the axial direction of the oil blowing nozzle 71 and the vertical axis is an acute angle, the gas can be accelerated again. After being accelerated twice, the gas is ejected from the oil blowing nozzle 71, and the oil droplets adhering to the wall of the oil separation chamber 22 can be blown off to the bottom of the oil separation chamber 22. This can effectively increase the oil return speed of the refrigeration oil, reduce the oil content of the exhaust gas, reduce the refrigeration oil loss, and improve the reliability of the compressor operation.

[0039] In one embodiment, if Figures 1 to 3 As shown, the included angle between the generatrix of the diverter pipe 73 and the vertical axis is 1° to 10°.

[0040] In this embodiment, the angle B between the busbar of the shunt pipe 73 and the vertical axis is 1° to 10° (see Figure 3); After the oil-gas mixture enters the oil separation chamber 22 tangentially at a certain speed, it rotates in the oil separation chamber 22. In the process of continuously spiraling downward, the oil droplets in the oil-gas mixture will be thrown out under the action of centrifugal inertia, and thus adhere to the inner wall of the oil separation chamber 22. As the number of adhered and accumulated oil droplets increases, the oil droplets will slowly fall to the bottom of the oil separation chamber 22; the gas after the oil droplets are thrown out will still carry a small part of the oil droplets. When the gas moves upward to the oil separation pipe inlet 61, part of the gas will be diverted by the diversion port 72. Most of the gas that has not been diverted flows upward along the inner wall of the oil separation pipe 6 to be discharged from the compressor, and the small part of the diverted gas flows from the diversion port 72 into the diversion pipe 73. Due to the diversion The angle between the busbar of the flow tube 73 and the vertical axis is 1° to 10°, that is, the cross-sectional radius of the diverter tube 73 increases gradually toward one end of the diverter port 72, which can accelerate the gas. The accelerated gas rushes into the top end of the diverter tube 73 and is dispersed by the oil blowing nozzle 71. Since the end of the oil blowing nozzle 71 is downward, that is, the angle between the axial direction of the oil blowing nozzle 71 and the vertical axis is an acute angle, the gas can be accelerated again. After two accelerations, the gas is ejected from the oil blowing nozzle 71, and the oil droplets adhered to the wall of the oil separation chamber 22 can be blown off to the bottom of the oil separation chamber 22, which can effectively increase the return oil speed of the refrigeration oil, reduce the oil content of the exhaust gas, reduce the refrigeration oil loss, and improve the reliability of the compressor operation.

[0041] In one embodiment, if Figures 1 to 3 As shown, the angle between the axial direction of the oil blowing nozzle 71 and the vertical axis is 10° to 50°.

[0042] In this embodiment, the angle A between the axial direction of the oil blowing nozzle 71 and the vertical axis is 10° to 50° (for details, please refer to Figure 3); Specifically, after the oil-gas mixture enters the oil separation chamber 22 tangentially at a certain speed, it rotates in the oil separation chamber 22. In the process of continuously spiraling downward, the oil droplets in the oil-gas mixture will be thrown out under the action of centrifugal inertia, and thus adhere to the inner wall of the oil separation chamber 22. As the number of adhered and accumulated oil droplets increases, the oil droplets will slowly fall to the bottom of the oil separation chamber 22; the gas after the oil droplets are thrown out will still carry a small part of the oil droplets. When the gas moves upward to the oil separation pipe inlet 61, part of the gas will be diverted by the diversion port 72. Most of the gas that has not been diverted flows upward along the inner wall of the oil separation pipe 6 to be discharged from the compressor, and the small part of the diverted gas flows from the diversion port 72 into the diversion pipe 73. Due to the diversion pipe 73 The angle between the busbar and the vertical axis is 1°~10°, that is, the cross-sectional radius of the diverter pipe 73 increases gradually toward one end of the diverter port 72, which can accelerate the gas. The accelerated gas rushes into the top end of the diverter pipe 73 and is dispersed by the oil blowing nozzle 71. Since the angle between the axial direction of the oil blowing nozzle 71 and the vertical axis is 10°~50°, that is, the angle between the axial direction of the oil blowing nozzle 71 and the vertical axis is an acute angle, the gas can be accelerated again. After two accelerations, the gas is ejected from the oil blowing nozzle 71, and the oil droplets adhered to the wall of the oil separation chamber 22 can be blown off to the bottom of the oil separation chamber 22, which can effectively increase the return oil speed of the refrigeration oil, reduce the oil content of the exhaust gas, reduce the refrigeration oil loss, and improve the reliability of the compressor operation.

[0043] In one embodiment, if Figures 1 to 4 As shown, a porous medium 74 is provided at one end of the oil blowing nozzle 71 that is not connected to the diverter pipe 73 , and the porous medium 74 is provided inside the oil blowing nozzle 71 .

[0044] In this embodiment, a porous medium 74 is provided at one end of the oil blowing nozzle 71 that is not connected to the diversion pipe 73 . The porous medium 74 is provided inside the oil blowing nozzle 71 . The embodiment of the present invention can ensure that the gas can only flow in one direction by arranging the porous medium 74 in the oil blowing nozzle 71, that is, the gas can only be sprayed out from the oil blowing nozzle 71 and cannot enter the oil blowing nozzle 71 from the oil separation chamber 22; specifically, after the oil-gas mixture enters the oil separation chamber 22 tangentially at a certain speed, it rotates in the oil separation chamber 22. In the process of continuously spiraling downward, the oil droplets in the oil-gas mixture will be thrown out under the action of centrifugal inertia force, and thus adhere to the inner wall of the oil separation chamber 22. As the number of adhered and accumulated oil droplets increases, the oil droplets will slowly fall to the bottom of the oil separation chamber 22; the gas after the oil droplets are thrown out will still carry a small part of the oil droplets. When the gas moves upward to the oil separation pipe inlet 61, due to the arrangement of the porous medium 74 in the oil blowing nozzle 71, the gas can only be sprayed out from the oil blowing nozzle 71 and cannot enter the oil blowing nozzle 71 from the oil separation chamber 22. Therefore, part of the gas is diverted by the diversion port 72 Most of the gas that is not diverted flows upward along the inner wall of the oil distribution pipe 6 and is discharged from the compressor. A small part of the diverted gas flows into the diverter pipe 73 from the diverter port 72. Since the angle between the generatrix of the diverter pipe 73 and the vertical axis is 1° to 10°, that is, the cross-sectional radius of the diverter pipe 73 increases gradually toward one end of the diverter port 72, the gas can be accelerated. After the accelerated gas rushes into the top of the diverter pipe 73, it is dispersed by the oil blowing nozzle 71. The angle between the axial direction of the oil blowing nozzle 71 and the vertical axis is 10°~50°, that is, the angle between the axial direction of the oil blowing nozzle 71 and the vertical axis is an acute angle, which can accelerate the gas again. The gas after two accelerations is ejected from the oil blowing nozzle 71, and the oil droplets adhering to the wall of the oil separation chamber 22 can be blown off to the bottom of the oil separation chamber 22, which can effectively increase the oil return speed of the refrigeration oil, reduce the oil content of the exhaust gas, reduce the refrigeration oil loss, and improve the reliability of the compressor operation.

[0045] In the embodiment of the present invention, the umbrella-shaped separator 7 is arranged in the oil separation pipe 6 to blow the oil droplets adhered to the wall of the oil separation chamber 22 to the bottom of the oil separation chamber 22, thereby preventing the oil droplets adhered to the wall of the oil separation chamber 22 from being carried by the gas again and discharged from the exhaust port 23, thereby effectively improving the oil return speed of the refrigeration oil and the oil-gas separation effect.

[0046] In one embodiment, if Figures 1 to 3 As shown, the oil distribution pipe 6 includes a connecting pipe and an oil distribution pipe body, and the connecting pipe is arranged at the upper end of the oil distribution pipe body; the connecting pipe and the oil distribution pipe body are both cylindrical structures, the cross-sectional radius of the connecting pipe is larger than the cross-sectional radius of the oil distribution pipe body, and the connecting pipe is transitionally connected to the oil distribution pipe body.

[0047] In this embodiment, the oil distribution pipe 6 includes a connecting pipe and an oil distribution pipe body, and the connecting pipe is arranged at the upper end of the oil distribution pipe body; the connecting pipe and the oil distribution pipe body are both cylindrical structures, the cross-sectional radius of the connecting pipe is larger than the cross-sectional radius of the oil distribution pipe body, the connecting pipe is transitionally connected to the oil distribution pipe body, and the oil distribution pipe 6 is fixedly assembled in the oil distribution cavity 22 through the connecting pipe; the umbrella-shaped separator 7 is arranged in the oil distribution pipe 6, and the embodiment of the present invention can adhere the oil distribution cavity 22 wall surface by arranging the umbrella-shaped separator 7 in the oil distribution pipe 6. The oil droplets are blown to the bottom of the oil separation chamber 22, which can prevent the oil droplets attached to the wall of the oil separation chamber 22 from being carried by the gas and discharged from the exhaust port 23 again, which can effectively improve the oil return speed of the refrigeration oil and the oil-gas separation effect; specifically, after the oil-gas mixture enters the oil separation chamber 22 tangentially at a certain speed, it rotates in the oil separation chamber 22. In the process of continuously spiraling downward, the oil droplets in the oil-gas mixture will be thrown out under the action of centrifugal inertia, and thus adhere to the inner wall of the oil separation chamber 22. As the number of adhered and accumulated oil droplets increases, the oil droplets will slowly fall to the oil separation chamber The bottom of 22; the gas after the oil droplets are thrown out will still carry a small part of the oil droplets. When the gas moves upward to the oil distribution pipe inlet 61, part of the gas will be diverted by the diverter port 72. Most of the gas that has not been diverted flows upward along the inner wall of the oil distribution pipe 6 and is discharged from the compressor. The small part of the diverted gas flows from the diverter port 72 into the diverter pipe 73. Since the angle between the busbar of the diverter pipe 73 and the vertical axis is 1° to 10°, that is, the cross-sectional radius of the diverter pipe 73 increases toward one end of the diverter port 72, the gas can be accelerated. After acceleration, After the gas rushes into the top end of the diversion pipe 73, it is dispersed by the oil blowing nozzle 71. Since the angle between the axial direction of the oil blowing nozzle 71 and the vertical axis is 10°~50°, that is, the angle between the axial direction of the oil blowing nozzle 71 and the vertical axis is an acute angle, the gas can be accelerated again. After two accelerations, the gas is ejected from the oil blowing nozzle 71, and the oil droplets adhering to the wall of the oil separation chamber 22 can be blown off to the bottom of the oil separation chamber 22, which can effectively increase the oil return speed of the refrigeration oil, reduce the oil content of the exhaust gas, reduce the refrigeration oil loss, and improve the reliability of the compressor operation.

[0048] In one embodiment, if Figures 1 to 3 As shown, the outer side wall of the umbrella-shaped separator 7 is made of oleophilic material.

[0049] In this embodiment, the outer wall of the umbrella-shaped separator 7 is made of lipophilic material. When the gas flows through the umbrella-shaped separator 7, the umbrella-shaped separator 7 can adsorb oil droplets in the gas, thereby reducing the oil content of the exhaust gas, reducing the loss of refrigeration oil, and improving the reliability of the compressor operation.

[0050] The present invention also provides a compressor, such as Figures 1 to 3 As shown, the compressor includes a shell 1 and a front end cover 2, the shell 1 and the front end cover 2 are combined to form an inner cavity of the compressor, the inner side wall of the front end cover 2 is combined to form an oil separation chamber 22, and the oil separation chamber 22 is provided with the above-mentioned oil-gas separation structure; the front end cover 2 is provided with an oil separation chamber air inlet 21, and the inner cavity of the compressor is connected with the oil separation chamber 22 through the oil separation chamber air inlet 21.

[0051] In this embodiment, the compressor is a scroll compressor, which includes a shell 1 and a front cover 2. The shell 1 and the front cover 2 are combined to form an inner cavity of the compressor, and the inner side wall of the front cover 2 is combined to form an oil separation chamber 22. The upper end of the front cover 2 is provided with an exhaust port 23, and the gas in the oil separation chamber 22 can be discharged from the compressor through the exhaust port 23; the oil separation chamber 22 is provided with the above-mentioned oil and gas separation structure; the front cover 2 is provided with an oil separation chamber air inlet 21, and the inner cavity of the compressor is connected with the oil separation chamber 22 through the oil separation chamber air inlet 21; specifically, the oil and gas mixture enters the oil separation chamber air inlet 21 tangentially at a certain speed, enters the oil separation chamber 22 through the oil separation chamber air inlet 21 and performs a rotational motion in the oil separation chamber 22 (for details, please refer to Figure 2 ), in the process of continuously spiraling downward, the oil droplets in the oil-gas mixture will be thrown out under the action of centrifugal inertia, and thus adhere to the inner wall of the oil separation chamber 22. As the number of adhered and accumulated oil droplets increases, the oil droplets will slowly fall to the bottom of the oil separation chamber 22; the gas after the oil droplets are thrown out will still carry a small part of the oil droplets. When the gas moves upward to the oil separation pipe inlet 61, part of the gas will be diverted by the diversion port 72, and most of the gas that has not been diverted will flow upward along the inner wall of the oil separation pipe 6 and be discharged from the compressor. A small portion of the gas rushes into the top end of the diversion pipe 73 and is dispersed by the oil blowing nozzle 71. Since the end of the oil blowing nozzle 71 is downward, that is, the angle between the axial direction of the oil blowing nozzle 71 and the vertical axis is an acute angle, the gas can be accelerated. The accelerated gas is ejected from the oil blowing nozzle 71, and the oil droplets adhering to the wall of the oil separation chamber 22 can be blown off to the bottom of the oil separation chamber 22, which can effectively increase the oil return speed of the refrigeration oil, reduce the oil content of the exhaust gas, reduce the refrigeration oil loss, and improve the reliability of the compressor operation.

[0052] The embodiment of the present invention can set the oil-gas separation structure in the oil separation chamber 22, so that the oil droplets adhered to the wall of the oil separation chamber 22 can be blown off to the bottom of the oil separation chamber 22, thereby preventing the oil droplets adhered to the wall of the oil separation chamber 22 from being carried by the gas again and discharged from the exhaust port 23, which can effectively improve the oil return speed of the refrigeration oil and the oil-gas separation effect.

[0053] In one embodiment, if Figures 1 to 3 As shown, the housing 1 is provided with an air inlet 11 communicating with the inner cavity of the compressor; a bracket 3 is provided in the inner cavity of the compressor, and a moving plate 4 and a static plate 5 are sequentially provided on the side of the bracket 3 close to the front cover 2.

[0054] In this embodiment, the shell 1 is provided with an air inlet 11 connected with the inner cavity of the compressor, and the refrigerant gas can enter the inner cavity of the compressor through the air inlet 11; a bracket 3 is provided in the inner cavity of the compressor, and a moving disc 4 and a static disc 5 are sequentially provided on the side of the bracket 3 close to the front end cover 2, and the moving disc 4 and the static disc 5 are meshed with each other to form a compression chamber, and the volume of the compression chamber becomes smaller as the moving disc 4 rotates, thereby achieving the purpose of compressing the refrigerant gas; the compressed oil-gas mixture enters the oil separation chamber air inlet 21 tangentially at a certain speed, enters the oil separation chamber 22 through the oil separation chamber air inlet 21 and rotates in the oil separation chamber 22. In the process of continuously spiraling downward, the oil droplets in the oil-gas mixture will be thrown off under the action of centrifugal inertia, thereby adhering to the inner wall of the oil separation chamber 22, and as the oil droplets adhere and accumulate As the oil level increases, the oil droplets will slowly fall to the bottom of the oil separation chamber 22; the gas after the oil droplets are thrown out will still carry a small amount of oil droplets. When the gas moves upward to the oil separation pipe inlet 61, part of the gas will be diverted by the diversion port 72, and most of the gas that has not been diverted will flow upward along the inner wall of the oil separation pipe 6 and be discharged from the compressor. The small amount of gas that has been diverted will rush into the top of the diversion pipe 73 and then be dispersed by the oil blowing nozzle 71. Since the end of the oil blowing nozzle 71 is facing downward, that is, the angle between the axial direction of the oil blowing nozzle 71 and the vertical axis is an acute angle, the gas can be accelerated. The accelerated gas is ejected from the oil blowing nozzle 71, which can blow the oil droplets adhering to the wall of the oil separation chamber 22 to the bottom of the oil separation chamber 22, which can effectively increase the oil return speed of the refrigeration oil, reduce the oil content of the exhaust gas, reduce the refrigeration oil loss, and improve the reliability of the compressor operation.

[0055] The embodiment of the present invention can set the oil-gas separation structure in the oil separation chamber 22, so that the oil droplets adhered to the wall of the oil separation chamber 22 can be blown off to the bottom of the oil separation chamber 22, thereby preventing the oil droplets adhered to the wall of the oil separation chamber 22 from being carried by the gas again and discharged from the exhaust port 23, which can effectively improve the oil return speed of the refrigeration oil and the oil-gas separation effect.

[0056] In one embodiment, if Figures 1 to 3As shown, the lower end of the front end cover 2 is provided with an oil return port 24, and the oil return port 24 is connected to the oil distribution chamber 22; the lower end of the static plate 5 is provided with a first oil return channel 51 and a second oil return channel 52, and the bracket 3 and the movable plate 4 are combined to form a back pressure chamber 8, and the oil return port 24, the first oil return channel 51, the second oil return channel 52 and the back pressure chamber 8 are connected in sequence.

[0057] In this embodiment, the lower end of the front end cover 2 is provided with an oil return port 24, and the oil return port 24 is connected to the oil separation chamber 22; the lower end of the static plate 5 is provided with a first oil return channel 51 and a second oil return channel 52, the bracket 3 and the dynamic plate 4 are combined to form a back pressure chamber 8, and the oil return port 24, the first oil return channel 51, the second oil return channel 52 and the back pressure chamber 8 are connected in sequence; the oil-gas mixture enters the oil separation chamber air inlet 21 tangentially at a certain speed, enters the oil separation chamber 22 through the oil separation chamber air inlet 21 and rotates in the oil separation chamber 22. In the process of continuously spiraling downward, the oil droplets in the oil-gas mixture will be thrown out under the action of centrifugal inertia, and thus adhere to the inner wall of the oil separation chamber 22. As the adhered and accumulated oil droplets increase, the oil droplets will slowly fall to the bottom of the oil separation chamber 22, and then pass through the oil return port 24, the first oil return channel 51, the second oil return channel 52 and the back pressure chamber 8 in sequence. The channel 51 and the second oil return channel 52 flow into the back pressure chamber 8 to lubricate the bearings and friction pairs; the gas after the oil droplets are thrown out will still carry a small part of the oil droplets. When the gas moves upward to the oil distribution pipe inlet 61, part of the gas will be diverted by the diversion port 72. Most of the gas that has not been diverted flows upward along the inner wall of the oil distribution pipe 6 and is discharged from the compressor. The small part of the diverted gas rushes into the top of the diversion pipe 73 and is dispersed by the oil blowing nozzle 71. Since the end of the oil blowing nozzle 71 is downward, that is, the angle between the axial direction of the oil blowing nozzle 71 and the vertical axis is an acute angle, the gas can be accelerated. The accelerated gas is ejected from the oil blowing nozzle 71, which can blow the oil droplets adhered to the wall of the oil distribution chamber 22 to the bottom of the oil distribution chamber 22, which can effectively increase the oil return speed of the refrigeration oil, reduce the oil content of the exhaust gas, reduce the refrigeration oil loss, and improve the reliability of the compressor operation.

[0058] The embodiment of the present invention can set the oil-gas separation structure in the oil separation chamber 22, so that the oil droplets adhered to the wall of the oil separation chamber 22 can be blown off to the bottom of the oil separation chamber 22, thereby preventing the oil droplets adhered to the wall of the oil separation chamber 22 from being carried by the gas again and discharged from the exhaust port 23, which can effectively improve the oil return speed of the refrigeration oil and the oil-gas separation effect.

[0059] The present invention discloses an oil-gas separation structure and a compressor. The oil-gas separation structure comprises: an oil distribution pipe and an umbrella-shaped separator, wherein the umbrella-shaped separator is disposed within the oil distribution pipe; the umbrella-shaped separator comprises a diverter pipe and at least one oil-blowing nozzle extending through the oil distribution pipe, wherein the oil-blowing nozzles are disposed at the upper end of the diverter pipe and communicate with the diverter pipe, with the distal ends of the oil-blowing nozzles facing downward. In an embodiment of the present invention, by disposing the umbrella-shaped separator within the oil distribution pipe, oil droplets adhering to the wall of the oil distribution chamber can be blown off to the bottom of the chamber. This prevents oil droplets adhering to the wall of the oil distribution chamber from being carried again by the gas and discharged from the exhaust port, effectively improving the return speed of the refrigeration oil and the oil-gas separation effect.

[0060] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. An oil-gas separation structure, characterized in that: The oil-gas separation structure comprises: an oil distribution pipe and an umbrella-shaped separator, wherein the umbrella-shaped separator is arranged in the oil distribution pipe; The umbrella-shaped separator includes a diverter pipe and at least one oil blowing nozzle penetrating the diverter pipe. The oil blowing nozzles are arranged at the upper end of the diverter pipe and communicate with the diverter pipe, and the ends of the oil blowing nozzles face downward.

2. The oil-gas separation structure according to claim 1, characterized in that: The lower end of the diversion pipe is provided with a diversion port; The diverter tube is a truncated cone structure, and the cross-sectional radius of the diverter tube increases gradually toward one end of the diverter port.

3. The oil-gas separation structure according to claim 1, characterized in that: The included angle between the busbar of the shunt pipe and the vertical axis is 1° to 10°.

4. The oil-gas separation structure according to claim 1, characterized in that: The angle between the axial direction of the oil blowing nozzle and the vertical axis is 10° to 50°.

5. The oil-gas separation structure according to claim 1, characterized in that: One end of the oil blowing nozzle that is not connected to the diverter pipe is provided with a porous medium, and the porous medium is arranged in the oil blowing nozzle.

6. The oil-gas separation structure according to claim 1, characterized in that: The oil distribution pipe includes a connecting pipe and an oil distribution pipe body, wherein the connecting pipe is arranged at the upper end of the oil distribution pipe body; The connecting pipe and the oil distribution pipe body are both cylindrical structures. The cross-sectional radius of the connecting pipe is larger than the cross-sectional radius of the oil distribution pipe body. The connecting pipe is transitionally connected to the oil distribution pipe body.

7. The oil-gas separation structure according to claim 1, characterized in that: The outer side wall of the umbrella-shaped separator is made of oleophilic material.

8. A compressor, characterized in that: The compressor comprises a housing and a front end cover, wherein the housing and the front end cover are combined to form an inner cavity of the compressor, and the inner sidewalls of the front end cover are combined to form an oil separation cavity, wherein the oil separation cavity is provided with an oil-gas separation structure according to any one of claims 1 to 7; The front end cover is provided with an oil separation chamber air inlet, and the compressor inner cavity is communicated with the oil separation chamber through the oil separation chamber air inlet.

9. The compressor according to claim 8, characterized in that The shell is provided with an air inlet connected to the inner cavity of the compressor; A bracket is provided in the inner cavity of the compressor, and a moving plate and a static plate are sequentially provided on a side of the bracket close to the front end cover.

10. The compressor according to claim 9, characterized in that The lower end of the front end cover is provided with an oil return port, and the oil return port is connected to the oil separation chamber; The lower end of the static plate is provided with a first oil return channel and a second oil return channel. The bracket and the movable plate are combined to form a back pressure chamber. The oil return port, the first oil return channel, the second oil return channel and the back pressure chamber are connected in sequence.

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