Oil separation device and compressor applying same

Abstract

The application discloses a kind of oil separation device and the compressor applied to it, oil separation device is applied to the high flow rate volume space of compressor, oil separation device includes multiple oil separation parts, the inside of the oil separation part is provided with oil storage cavity, the surface of the oil separation part is provided with oil separation port communicated with the oil storage cavity, the oil separation part is used when the compressor runs and collides with gas-liquid mixture, and make the oil droplet of collision condensation flow into the oil storage cavity by the oil separation port;And when the compressor stops, make the oil droplet flow out of the oil storage cavity by the oil separation port.The application is provided with multiple oil separation parts in high flow rate volume space, forms collision oil separation channel, to increase the oil separation capacity in high flow rate volume space, in this way, the oil output rate of compressor is reduced, and the oil content of system is reduced.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and more particularly to an oil separator and a compressor using the same. Background Technology

[0002] Existing aluminum scroll compressors typically employ an oil distribution technology that adds an oil return pipe at the front cover location, forming a specific oil return route. For example... Figure 1 As shown, after the moving and stationary discs 300 complete compression, the high-temperature and high-pressure oil and gas enter the oil distribution system through the exhaust port of the front cover 200. The gas-liquid mixture (oil and gas) rotates around the oil distribution pipe 100, and preliminary separation is achieved through centrifugal force. Under the action of gravity, the oil passes through the filter screen 400 in the oil chamber of the front cover 200 and enters the return oil channel 500, while the gas is discharged through the exhaust pressure plate inside the oil distribution pipe 100.

[0003] However, this oil separation technology has significant drawbacks: the compressor has a high oil output rate, resulting in poor oil return, and some impurities generated during assembly may also be discharged. This not only affects the heat exchange capacity of the evaporator and condenser, preventing the compressor from fully utilizing its performance, but may also lead to problems such as compressor wear. In particular, insufficient lubrication during operation can cause a decline in compressor performance.

[0004] Therefore, how to reduce the oil output rate of the compressor and reduce the oil content of the system is a key problem that needs to be solved by existing technologies. Summary of the Invention

[0005] The purpose of this invention is to provide an oil separation device and a compressor using the same, in order to solve the technical problem that the high oil output rate of compressors in the prior art leads to a decrease in compressor performance.

[0006] To solve the above-mentioned technical problems, the objective of this invention is achieved through the following technical solution: providing an oil separator, applied in the high-flow-rate volume space of a compressor, comprising multiple oil separator components, wherein each oil separator component has an oil storage cavity inside, and each oil separator component has an oil separator port communicating with the oil storage cavity on its surface; the oil separator component is used to collide with the gas-liquid mixture when the compressor is running, and to allow the oil droplets condensed by the collision to flow into the oil storage cavity through the oil separator port; and when the compressor stops, to allow the oil droplets to flow out of the oil storage cavity through the oil separator port.

[0007] Furthermore, the oil separator is spherical.

[0008] Furthermore, the surface of the oil separator is provided with a collision part for colliding with the gas-liquid mixture.

[0009] Furthermore, the collision part has a ring structure.

[0010] Furthermore, multiple oil distribution ports are provided.

[0011] Furthermore, the high-flow-rate volume space is disposed in the inner cavity of the oil distribution pipe of the compressor. The oil distribution device also includes a top cover and a bottom cover. The top cover is disposed in the upper part of the inner cavity of the oil distribution pipe, and the bottom cover is disposed in the lower part of the inner cavity of the oil distribution pipe. The high-flow-rate volume space is formed between the top cover, the bottom cover, and the side wall of the oil distribution pipe. The oil distribution component is confined within the high-flow-rate volume space. The top cover has an outlet for gas outflow. The oil distribution device also includes a first oil outlet disposed on the bottom cover and / or the oil distribution pipe.

[0012] Furthermore, the high-flow-rate volume space is the cavity between the compressor's stationary disc and the front cover, the oil separator is confined within the high-flow-rate volume space, and the oil separator also includes a second oil outlet connected to the cavity.

[0013] Furthermore, the high-flow-rate volume space is the exhaust passage of the compressor, and the oil separator also includes a third oil outlet located at the bottom of the exhaust passage, which is connected to the exhaust passage.

[0014] Furthermore, the sum of the volumes of the plurality of oil distribution components is less than half of the high-flow-rate volume space.

[0015] This invention also provides a compressor, including the oil separator as described above.

[0016] This invention provides an oil separator and a compressor using the same. The oil separator is applied within the high-velocity volume space of the compressor. The oil separator includes multiple oil separator components, each with an internal oil storage cavity and an oil outlet on its surface communicating with the oil storage cavity. When the compressor is running, the oil separator components collide with the gas-liquid mixture, causing the condensed oil droplets to flow into the oil storage cavity through the oil outlet. When the compressor stops, the oil droplets flow out of the oil storage cavity through the oil outlet. This invention increases the oil separation capacity within the high-velocity volume space by setting multiple oil separator components to form a collision-based oil separation channel. This reduces the oil output rate of the compressor and decreases the oil content of the system. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1This is a schematic diagram of the structure of a traditional compressor;

[0019] Figure 2 This is a schematic diagram of the structure of an oil separator provided in an embodiment of the present invention;

[0020] Figure 3 A cross-sectional view of an oil separator provided in an embodiment of the present invention. Figure 1 ;

[0021] Figure 4 A cross-sectional view of a horizontal compressor provided in an embodiment of the present invention;

[0022] Figure 5 A cross-sectional view of the oil distribution pipe provided in an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the top cover provided in an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of a vertical compressor provided in an embodiment of the present invention;

[0025] Figure 8 A cross-sectional view of an oil separator provided in an embodiment of the present invention. Figure 2 .

[0026] Explanation of the markings in the image:

[0027] 100. Oil distribution pipe; 200. Front cover; 300. Static plate; 400. Filter screen; 500. Oil return channel;

[0028] 10. Oil distribution component; 11. Oil storage cavity; 12. Oil distribution port; 13. Collision part;

[0029] 20. Top cover; 21. Air vent;

[0030] 30. Bottom cover; 31. First oil outlet;

[0031] 40. Second oil outlet;

[0032] 50. Third oil outlet. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0035] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this 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.

[0036] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0037] Combination Figure 2 and Figure 3 As shown, this embodiment of the invention provides an oil separator, applied in the high-flow-rate volume space of a compressor, including multiple oil separators 10. Each oil separator 10 has an oil storage cavity 11 inside, and an oil separator port 12 communicating with the oil storage cavity 11 is opened on the surface of the oil separator 10. The oil separator 10 is used to collide with the gas-liquid mixture when the compressor is running, and to allow the oil droplets condensed by the collision to flow into the oil storage cavity 11 through the oil separator port 12; and to allow the oil droplets to flow out of the oil storage cavity 11 through the oil separator port 12 when the compressor stops.

[0038] In this embodiment, the oil separator includes multiple oil separator components 10. Each oil separator component 10 separates the gas and liquid components of the gas-liquid mixture, effectively storing oil droplets during operation and releasing them when the compressor is stopped, thereby reducing the compressor's oil output rate. The oil separator component 10 has an internal oil storage cavity 11 for storing oil droplets condensed through collision separation. The oil storage cavity 11 features a hollow design with an optimized shape to accommodate a sufficient number of oil droplets and prevent backflow. An oil separator port 12 is formed on the surface of the oil separator component 10, communicating with the oil storage cavity 11 to guide the oil droplets in and out. When the compressor is running, the oil separator component 10 collides with the high-speed gas-liquid mixture, guiding the condensed oil droplets into the oil storage cavity 11 through the oil separator port 12. When the compressor stops, the oil droplets stored in the oil separator component 10 slowly flow out of the oil storage cavity 11 through the oil separator port 12, thus preventing excessive oil droplets from remaining in the system. In addition, the oil separator 10 can be made of either metal or non-metal materials, and the choice can be made according to the actual situation.

[0039] In one embodiment, the oil separator 10 is spherical.

[0040] In this embodiment, the oil separator 10 is designed as a spherical structure (i.e., an oil separator ball). This design can effectively improve the oil separation efficiency and facilitate the rolling and collision of the oil separator ball in a high-velocity volume space. By increasing the collision area, more oil droplets are separated from the gas-liquid mixture. At the same time, the surface features of the spherical structure can also reduce the reduction of oil separation effect due to airflow disturbance during the flow of the gas-liquid mixture.

[0041] In one embodiment, the surface of the oil separator 10 is provided with a collision portion 13 for colliding with the gas-liquid mixture.

[0042] In this embodiment, the collision portion 13 provided on the surface of the oil separator 10 adopts protrusions, textures, or other surface features, which can increase the collision area of ​​the gas-liquid mixture. When the compressor is running, the gas-liquid mixture flows at high speed under high pressure. The design of the collision portion 13, by changing the airflow direction and increasing the surface roughness, makes it easier for oil droplets in the oil-gas mixture to contact and condense on the surface of the oil separator 10. The collision portion 13 can guide the oil droplets to the oil distribution port 12 of the oil separator 10, thereby flowing into the internal oil storage cavity 11 for storage. When the compressor stops running, these stored oil droplets can be released in an orderly manner through the oil distribution port 12 and flow back to the lubrication components of the compressor. Through this dynamic oil storage and release mechanism, it is ensured that the compressor can achieve sufficient lubrication in both running and stopped states. The collision portion 13 can be optimized according to the shape of the oil separator 10 and the actual use scenario. For example, when the oil separator 10 is spherical, the collision portion 13 can be evenly distributed on the surface of the sphere.

[0043] Furthermore, the collision part 13 can be integrally formed with the oil distribution part 10, and can be made of materials that are resistant to high temperatures and corrosion and have high surface friction, such as metals or high-performance composite materials, to ensure its stability and durability under high pressure and high-speed airflow environments. At the same time, the texture or protrusions on the surface of the collision part 13 can be completed by precision machining or mold forming technology.

[0044] In one embodiment, the collision part 13 is a ring structure.

[0045] In this embodiment, the collision section 13 is distributed in a ring structure on the outer surface of the oil separator 10. The ring design increases the surface area and contact angle of the oil separator 10, thereby improving the collision probability between the gas-liquid mixture and the oil separator 10 and the condensation efficiency of the oil droplets. The parameters of the height and width of the ring protrusion are optimized according to the operating pressure of the compressor, the flow rate of the gas-liquid mixture, and the installation position of the oil separator to ensure that the oil separation efficiency is maximized without affecting the gas flow. For example, when the oil separator 10 is spherical, the ring structure can be evenly distributed parallel to each other on the surface of the sphere to form multiple layers of ring collision zones, or they can be arranged in a cross pattern, for example... Figure 2The cross-shaped intersections form a cross-collision zone to fully utilize the surface space of the oil distribution component 10.

[0046] In one embodiment, multiple oil distribution ports 12 are provided.

[0047] In this embodiment, the surface of the oil separator 10 is provided with multiple oil-separating ports 12, all of which communicate with the oil storage cavity 11 and are located on the surface area of ​​the oil separator 10. The number of oil-separating ports 12 is optimized according to the geometry of the oil separator and the working environment to ensure that after the gas-liquid mixture collides with the oil separator, oil droplets can flow into the oil storage cavity 11 through multiple oil-separating ports 12, thereby improving the oil separation efficiency and increasing the oil droplet discharge efficiency when the compressor is stopped. The size and shape of the oil-separating ports 12 are designed according to the droplet size, gas-liquid flow velocity, and volume of the oil storage cavity 11. The shape of the oil-separating ports 12 can be circular, elliptical, or other geometric shapes to adapt to different oil-gas separation environments.

[0048] Combination Figures 4 to 6 As shown, in one embodiment, the high-flow-rate volume space (which may be referred to as the first high-flow-rate volume space for ease of distinction) is disposed in the inner cavity of the oil distribution pipe of the compressor. The oil distribution device also includes a top cover 20 and a bottom cover 30. The top cover 20 is disposed in the upper part of the inner cavity of the oil distribution pipe, and the bottom cover 30 is disposed in the lower part of the inner cavity of the oil distribution pipe. The high-flow-rate volume space is formed between the top cover 20, the bottom cover 30 and the side wall of the oil distribution pipe. The oil distribution component 10 is confined within the high-flow-rate volume space. The top cover 20 is provided with a gas outlet 21 for gas outflow. The oil distribution device also includes a first oil outlet 31 disposed on the bottom cover 30 and / or the oil distribution pipe.

[0049] In this embodiment, the high-velocity volume space can be located within the oil separator of the compressor. The oil separator includes a top cover 20, a bottom cover 30, and the sidewalls of the oil separator. The top cover 20 is located at the upper part of the oil separator's inner cavity, and the bottom cover 30 is located at the lower part. The top cover 20, bottom cover 30, and sidewalls of the oil separator together form the high-velocity volume space. The top cover 20 is located at the upper part of the oil separator and is used to seal the upper end of the high-velocity volume space. The top cover 20 has a gas outlet 21. The opening size (the size of the gas outlet 21 is smaller than the size of the oil separator 10) and position of the gas outlet 21 are optimized to ensure that the separated gas can be discharged smoothly while preventing the oil separator 10 from leaking out with the gas. The bottom cover 30 is located at the lower part of the oil separator and is used to seal the lower end of the high-velocity volume space. Together with the top cover 20, it forms a support and constraint structure for the oil separator 10. A first oil outlet 31 can be provided on the bottom cover 30, and a first oil outlet 31 can also be provided on the oil distribution pipe (i.e., the first oil outlet 31 is opened on the side wall of the oil distribution pipe) to release the oil droplets stored in the oil storage cavity 11 to the return oil channel of the compressor. In the case where the first oil outlet 31 is opened on the side wall of the oil distribution pipe, the first oil outlet 31 can be designed as an oblique hole, which can utilize gravity to make the oil droplets flow out of the distribution pipe more quickly. At the same time, the size of the first oil outlet 31 should be smaller than the size of the oil distribution component 10 to confine the oil distribution component 10 within a high-flow-rate volume space and prevent the oil distribution component 10 from flowing out from the first oil outlet 31.

[0050] In one embodiment, the high-flow-rate volume space (which may be referred to as the second high-flow-rate volume space for easy distinction) is the cavity between the compressor's stationary disc and the front cover. The oil separator 10 is confined within the high-flow-rate volume space, and the oil separator further includes a second oil outlet 40 connected to the cavity.

[0051] In this embodiment, the high-flow-rate volumetric space can be located in the cavity between the stationary plate and the front cover of the compressor, with the stationary plate and the front cover jointly defining the boundary of the cavity. A second oil outlet 40 is provided on the cavity for discharging oil droplets from the oil storage cavity 11. The second oil outlet 40 can be located on the side wall at the bottom of the cavity (i.e., a hole is provided on the bottom side wall of the front cover) to facilitate faster flow of oil droplets to the return oil channel (the return oil channel can also be equipped with a filter to filter the oil droplets). Utilizing the existing cavity between the stationary plate and the front cover as the high-flow-rate volumetric space eliminates the need for additional structures. Of course, in addition to the oil separator 10 in the cavity between the stationary plate and the front cover, an oil separator 10 can be further installed on the oil separator pipe to form two oil separator spaces. After the first oil separator is installed in the cavity between the stationary plate and the front cover, the remaining gas-liquid mixture is then transported to the oil separator pipe for a second oil separator, thus enhancing the oil separator effect.

[0052] Combination Figure 7 and Figure 8As shown, in one embodiment, the high-flow-rate volume space (which may be referred to as the third high-flow-rate volume space for easy distinction) is the exhaust passage of the compressor, and the oil separator further includes a third oil outlet 50 opened at the bottom of the exhaust passage, the third oil outlet 50 being connected to the exhaust passage.

[0053] In this embodiment, the high-flow-rate volumetric space can be located within the exhaust passage of the vertical compressor. During the exhaust process, oil droplets in the oil storage cavity 11 are guided to the third oil outlet 50. The third oil outlet 50 is located at the bottom of the exhaust passage and communicates with it. The main function of the third oil outlet 50 is to guide the separated oil droplets back to the compressor's oil return passage, preventing oil droplets from accumulating or leaking within the exhaust passage. An exhaust pipe is provided on one side of the exhaust passage, and the third oil outlet 50 is located away from the exhaust pipe.

[0054] In this embodiment, the first high-flow-rate volume space and the second high-flow-rate volume space are well applicable to horizontal compressors. The first high-flow-rate volume space and the second high-flow-rate volume space can be set individually or simultaneously. The third high-flow-rate volume space is well applicable to vertical compressors.

[0055] In one embodiment, the sum of the volumes of the plurality of oil distribution components 10 is less than half of the high flow rate volume space.

[0056] In this embodiment, to ensure that the oil separator 10 can fully perform its oil-gas separation function within the high-velocity volume space, while also ensuring smooth flow of the gas-liquid mixture, the total volume of the multiple oil separators 10 within each high-velocity volume space must be less than half the volume of the corresponding high-velocity volume space. Assuming the volume of the high-velocity volume space is V, the volume of a single oil separator 10 is M, and the total number of oil separators is N, then the condition must be met: N*M < 0.5*V. This constraint ensures that the oil separator 10 has sufficient clearance within the space for the gas-liquid mixture to flow, thereby achieving efficient oil separation while avoiding excessive resistance to the airflow.

[0057] This invention also provides a compressor, including the oil separator as described above.

[0058] In this embodiment, the high-flow-rate volume space can be located in the inner cavity of the compressor's oil distribution pipe, the cavity between the stationary plate and the front cover, or the exhaust channel. Oil droplets enter the oil storage cavity 11 through the oil distribution port 12 for storage, and the stored oil droplets are discharged through the corresponding oil outlet (such as the first oil outlet 31, the second oil outlet 40, or the third oil outlet 50) and flow back to the compressor's oil return channel.

[0059] In summary, the oil separator 10 enables gas-liquid separation, reducing the oil output rate of the compressor. The oil separator 10 works in conjunction with the compressor during start-up and shutdown, ensuring that most oil droplets are stored within the compressor, thus guaranteeing adequate lubrication of all compressor components. This invention employs a modified oil separator structure, increasing the collision area of ​​high-pressure gas and incorporating the oil separator 10. This not only enhances the collision-based oil separation function but also stores the oil volume generated during compressor start-up, thereby reducing the compressor's oil output rate, lowering the system's oil content, improving the heat exchanger's heat exchange efficiency, and ensuring adequate lubrication of compressor components.

[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 these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An oil separator, applied within the high-velocity volume space of a compressor, characterized in that, It includes multiple oil separators, each with an internal oil storage cavity and an oil distribution port on its surface that communicates with the oil storage cavity. The oil separator is used to collide with the gas-liquid mixture when the compressor is running, and to allow the oil droplets that condense from the collision to flow into the oil storage cavity through the oil distribution port. And when the compressor stops, the oil droplets are allowed to flow out of the oil storage cavity through the oil separator port; The surface of the oil separator is provided with a collision part for colliding with the gas-liquid mixture, and the collision part is integrally formed with the oil separator; The high-flow-rate volume space includes a first high-flow-rate volume space, which is disposed in the inner cavity of the oil distribution pipe of the compressor. The oil distribution device also includes a top cover and a bottom cover. The top cover is disposed in the upper part of the inner cavity of the oil distribution pipe, and the bottom cover is disposed in the lower part of the inner cavity of the oil distribution pipe. The top cover, the bottom cover, and the side wall of the oil distribution pipe form the first high-flow-rate volume space. The oil distribution component is confined within the first high-flow-rate volume space. The top cover has a gas outlet for gas outflow. The oil distribution device also includes a first oil outlet disposed on the bottom cover and / or the oil distribution pipe. The oil separator is a spherical structure, wherein the spherical structure undergoes rolling collisions within the high-flow-rate volume space.

2. The oil separator according to claim 1, characterized in that, The collision part has a ring structure.

3. The oil separator according to claim 1, characterized in that, The oil separator is provided with multiple ports.

4. The oil separator according to claim 1, characterized in that, The high-flow-rate volume space also includes a second high-flow-rate volume space, which is the cavity between the compressor's stationary disc and the front cover. The oil separator is confined within the second high-flow-rate volume space, and the oil separator also includes a second oil outlet communicating with the cavity.

5. The oil separator according to claim 1, characterized in that, The sum of the volumes of the multiple oil distribution components is less than half of the high-flow-rate volume space.

6. A compressor, characterized in that, Includes the oil separator as described in any one of claims 1-5.

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