Separation device and compressor system

Abstract

The application provides a separation device and a compressor system, the separation device comprising a housing and a separation piece, the housing comprising a containing cavity and an oil inlet communicating with the containing cavity, the oil inlet being used for connecting with an oil tank; the separation piece is rotatably arranged in the containing cavity, the separation piece comprising a separation groove and a driving structure, the oil inlet communicating with the separation groove, the separation groove being used for containing lubricating oil supplied by the oil tank to separate oil and impurities in the lubricating oil through centrifugal force generated by the separation piece in the rotating process; the driving structure is used for communicating with the oil tank, and the driving structure is configured to drive the separation piece to rotate by using the pressure of the lubricating oil supplied by the oil tank. The pressure of the lubricating oil supplied by the oil tank can be directly converted into mechanical energy to drive the separation piece to rotate to generate centrifugal force, and then to separate the particulate impurities in the lubricating oil, thereby helping to solve the technical problem that the small particulate impurities in the lubricating oil are difficult to filter in the related art.

Description

Technical Field

[0001] This invention relates to the field of lubricating oil impurity separation equipment, and more specifically, to a separation device and a compressor system. Background Technology

[0002] During long-term operation, centrifugal compressors inevitably generate tiny particulate impurities due to mechanical friction and vibration. If these impurities are not effectively removed, they can easily mix into the circulating lubricating oil and be carried by the oil circuit to critical friction pairs such as bearings.

[0003] However, traditional oil filtration methods rely heavily on gravity settling or conventional porous media filtration, which have limited driving force and slow separation speeds, often failing to achieve efficient filtration of tiny particulate impurities. This allows impurities to easily penetrate the filter and accumulate in the bearing clearances, causing abnormal wear on the bearings or journals, and ultimately leading to serious malfunctions such as bearing seizure and damage. This not only shortens the lifespan of the centrifugal compressor and increases maintenance costs but also reduces the reliability and safety of equipment operation. Summary of the Invention

[0004] The main objective of this invention is to provide a solution to the technical problem of the difficulty in filtering out tiny particulate impurities in lubricating oil in related technologies.

[0005] To achieve the above objectives, according to one aspect of the present invention, a separation device is provided, comprising:

[0006] The housing includes a receiving cavity and an oil inlet communicating with the receiving cavity, the oil inlet being used to connect to the oil tank;

[0007] A separator is rotatably disposed within a receiving cavity. The separator includes a separation groove and a drive structure. An oil inlet is connected to the separation groove, which is used to contain lubricating oil supplied from an oil tank. The separation groove is used to separate oil and impurities in the lubricating oil by centrifugal force generated during the rotation of the separator. The drive structure is connected to the oil tank and is configured to drive the separator to rotate using the pressure of the lubricating oil supplied from the oil tank.

[0008] Furthermore, the driving structure includes:

[0009] The mounting shaft includes a connected oil supply channel and an oil injection channel. The oil supply channel extends along the axial direction of the separator, and one end of the oil supply channel is used to communicate with the oil tank. The extension direction of the oil injection channel is set at an angle to the axial direction of the separator. The oil injection direction of the end of the oil injection channel away from the oil supply channel is set at an angle to the tangential direction of the separator or is parallel to each other.

[0010] Furthermore, the injection passage includes a transition section and an injection section, the transition section extending radially along the mounting shaft, and the injection section connecting to the transition section at an angle; or,

[0011] The fuel injection channel is curved.

[0012] Furthermore, there are at least two fuel injection channels;

[0013] At least two injection channels are located on the same plane; and / or,

[0014] At least two injection channels are spaced apart along the axis of the mounting shaft.

[0015] Furthermore, the separator also includes a mounting cavity, a mounting shaft located inside the mounting cavity, an oil injection channel communicating with the mounting cavity, and one end of the mounting cavity communicating with the oil tank.

[0016] Furthermore, the housing also includes a first oil outlet communicating with the receiving cavity, the first oil outlet being used for connection to the compressor; the separation device also includes:

[0017] The first guide element is disposed in the receiving cavity and is positioned opposite to the opening of the separation tank. The first guide element includes a guide channel, which is connected to the separation tank and the first oil outlet, so that the separated oil flows into the compressor from the first oil outlet through the guide channel.

[0018] Furthermore, the first flow guide includes at least two flow guide vanes in an annular shape, the at least two flow guide vanes are connected to each other at intervals, a flow guide channel is formed between two adjacent flow guide vanes, and at least one filter element is disposed in the flow guide channel.

[0019] Furthermore, the housing also includes a first oil outlet communicating with the receiving cavity, the first oil outlet being used to connect with the compressor; the housing also includes a discharge outlet communicating with the receiving cavity, the discharge outlet being located below the first oil outlet; the diameter of the separation tank gradually increases along the direction from the discharge outlet to the first oil outlet, so that the separated impurities are discharged from the tank wall of the separation tank through the edge of the tank opening and out of the discharge outlet.

[0020] According to another aspect of the present invention, a compressor system is provided, including a compressor, an oil tank, and the aforementioned separation device.

[0021] Furthermore, the compressor system also includes:

[0022] The first connecting pipeline is connected to the oil inlet of the oil tank and the oil inlet of the separator, respectively;

[0023] The second connecting pipeline is connected to the oil supply channels of the oil tank and the separator, respectively;

[0024] The third connecting pipeline is connected to the oil tank and the installation cavity of the separator, respectively;

[0025] The fourth connecting pipeline is connected to the first oil outlet of the separator and the compressor, respectively;

[0026] The fifth connecting pipe is connected to the second oil outlet at the bearing of the oil tank and the compressor, respectively.

[0027] Furthermore, the compressor system also includes:

[0028] A temperature detection module is installed on the fifth connecting pipe to detect the temperature of the lubricating oil in the fifth connecting pipe;

[0029] The flow regulation module is connected to the first connecting pipe and the second connecting pipe;

[0030] The control module is connected to the temperature detection module and the flow regulation module respectively. The control module is configured to control the opening degree of the first connection pipe and / or the second connection pipe according to the temperature of the lubricating oil in the fifth connection pipe detected by the detection module.

[0031] Furthermore, the flow regulation module includes:

[0032] A first regulating valve is disposed on a first connecting pipe for adjusting the opening degree of the first connecting pipe; and / or,

[0033] The second regulating valve is installed on the second connecting pipe to regulate the opening degree of the second connecting pipe.

[0034] The present invention provides a separation device, comprising a housing and a separating component. The housing includes a receiving cavity and an oil inlet communicating with the receiving cavity, the oil inlet being connected to an oil tank. The separating component is rotatably disposed within the receiving cavity and includes a separating groove and a driving structure. The oil inlet is connected to the separating groove, the separating groove being used to receive lubricating oil supplied from the oil tank, so as to separate oil and impurities in the lubricating oil by centrifugal force generated during the rotation of the separating component. The driving structure is connected to the oil tank and is configured to drive the separating component to rotate using the pressure of the lubricating oil supplied from the oil tank.

[0035] Conventional impurity separators rely solely on the gravity of the lubricating oil as the driving force. Under this force, the oil passes through a porous filter medium, separating particulate impurities. However, this method has limited driving force, slow separation speed, and difficulty in filtering minute particulate impurities in the lubricating oil. This application addresses the technical problem of filtering minute particulate impurities in lubricating oil through its design of the separating component and drive structure. Specifically, the pressure energy of the lubricating oil supplied from the tank is directly converted into mechanical energy to drive the separating component to rotate, generating centrifugal force and thus separating particulate impurities from the lubricating oil. This design eliminates the need for an additional motor or external power source, simplifying the system structure and reducing energy consumption and manufacturing costs. Furthermore, since the power source is the same as the oil supply system, the separation process is closely linked to the oil supply process, ensuring automatic start-up and maintenance of a stable separation speed under oil supply pressure, thus improving the system's integration and reliability.

[0036] Furthermore, in terms of separation efficiency, the powerful centrifugal force generated during the rotation of the separating element overcomes the settling resistance of tiny particulate impurities under gravity. Compared to traditional gravity or low-pressure filtration methods, centrifugal force more effectively separates denser oil from impurities radially. Under centrifugal force, impurities rapidly aggregate towards the walls of the separation tank, forming sediment, while clean lubricating oil flows out towards the center. This mechanism significantly improves the removal efficiency of tiny particulate impurities, effectively preventing impurities from entering critical components such as bearings, thereby extending the service life of the centrifugal compressor and reducing the risk of failure due to wear caused by impurities. Attached Figure Description

[0037] 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:

[0038] Figure 1 A schematic diagram of the structure provided by an embodiment of the compressor system according to the present invention is shown;

[0039] Figure 2 A schematic diagram of the structure provided by an embodiment of the separation device according to the present invention is shown;

[0040] Figure 3 A cross-sectional view of the mounting shaft provided according to an embodiment of the separation device of the present invention is shown.

[0041] The above figures include the following reference numerals:

[0042] 1. First connecting pipe;

[0043] 2. Second connecting pipe;

[0044] 3. Third connecting pipe;

[0045] 4. Fourth connecting pipe;

[0046] 5. Fifth connecting pipe;

[0047] 6. Detection module;

[0048] 7. First regulating valve;

[0049] 8. Second regulating valve;

[0050] 10. Shell; 11. Receiving cavity; 12. Oil inlet; 13. First oil outlet; 14. Discharge outlet;

[0051] 20. Separable parts;

[0052] 21. Separation tank;

[0053] 22. Drive structure;

[0054] 23. Mounting shaft; 230. Oil supply channel; 231. Oil injection channel; 2310. Transition section; 2311. Oil injection section;

[0055] 24. Installation cavity;

[0056] 30. Fuel tank;

[0057] 40. First flow guide component; 41. Flow guide channel; 42. Flow guide plate;

[0058] 50. Second airflow guide;

[0059] 60. Bearings. Detailed Implementation

[0060] 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.

[0061] Please refer to Figures 1 to 3 As shown, the technical solution of the present invention provides a separation device, including a housing 10 and a separating member 20. The housing 10 includes a receiving cavity 11 and an oil inlet 12 communicating with the receiving cavity 11. The oil inlet 12 is used to connect with an oil tank 30. The separating member 20 is rotatably disposed in the receiving cavity 11. The separating member 20 includes a separating groove 21 and a driving structure 22. The oil inlet 12 communicates with the separating groove 21. The separating groove 21 is used to receive lubricating oil supplied by the oil tank 30, so as to separate the oil and impurities in the lubricating oil by the centrifugal force generated by the separating member 20 during rotation. The driving structure 22 is used to communicate with the oil tank 30. The driving structure 22 is configured to drive the separating member 20 to rotate by the pressure of the lubricating oil supplied by the oil tank 30.

[0062] Conventional impurity separators rely solely on the gravity of the lubricating oil as the driving force. Under this force, the oil passes through a porous filter medium, separating particulate impurities. However, this method has limited driving force, slow separation speed, and difficulty in filtering tiny particulate impurities in the lubricating oil. This application, through the design of the separator 20 and drive structure 22, helps solve the technical problem of filtering tiny particulate impurities in lubricating oil in related technologies. Specifically, the pressure energy of the lubricating oil supplied by the oil tank 30 is directly converted into mechanical energy, driving the separator 20 to rotate and generate centrifugal force, thereby separating particulate impurities from the lubricating oil. This design eliminates the need for an additional motor or external power source, simplifying the system structure and reducing energy consumption and manufacturing costs. Simultaneously, since the power source is from the same source as the oil supply system, the separation process is closely linked to the oil supply process, ensuring automatic start-up and maintenance of a stable separation speed under oil supply pressure, thus improving the system's integration and reliability.

[0063] Furthermore, in terms of separation efficiency, the powerful centrifugal force generated by the separator 20 during rotation overcomes the settling resistance of fine particulate impurities under gravity. Compared to traditional gravity or low-pressure filtration methods, centrifugal force more effectively separates denser oil from impurities radially. Under centrifugal force, impurities rapidly accumulate on the wall of the separation tank 21 to form sediment, while clean lubricating oil flows out towards the center. This mechanism significantly improves the removal efficiency of fine particulate impurities, effectively prevents impurities from entering critical components such as the bearing 60, thereby extending the service life of the centrifugal compressor and reducing the risk of failure due to wear caused by impurities.

[0064] In some embodiments, the drive structure 22 includes a mounting shaft 23, which includes a connected oil supply channel 230 and an oil injection channel 231. The oil supply channel 230 extends along the axial direction of the separator 20, and one end of the oil supply channel 230 is used to communicate with the oil tank 30. The extension direction of the oil injection channel 231 is at an angle to the axial direction of the separator 20, and the oil injection direction of the end of the oil injection channel 231 that is away from the oil supply channel 230 is at an angle to the tangential direction of the separator 20 or is parallel to each other.

[0065] Preferably, the extension direction of the fuel injection channel 231 is perpendicular to the axial direction of the separator 20.

[0066] In the above embodiment, the oil supply channel 230 inside the mounting shaft 23 serves as the main oil passage, introducing high-pressure lubricating oil from the oil tank 30 into the mounting shaft 23. Since the extension direction of the oil injection channel 231 is angled to the axis of the separator 20, and the injection direction is parallel to or at a specific angle to the tangent direction, the lubricating oil generates a reaction torque when it is ejected at high speed from the oil injection channel 231. This arrangement efficiently converts the kinetic energy of the oil into rotational mechanical energy, driving the separator 20 to rotate at high speed around its axis to generate centrifugal force, thereby separating particulate impurities from the lubricating oil.

[0067] Preferably, when the injection direction of the oil injection channel 231 is parallel to the tangential direction of the mounting shaft 23, the reaction force has the largest lever arm on the rotating shaft, enabling the maximum driving torque to be obtained with the minimum oil pressure. If it is set at an angle, the magnitude and directional stability of the driving torque can be adjusted according to actual needs. This design ensures that the separator 20 maintains a stable rotational speed under different oil supply pressures, thereby ensuring the continuity and consistency of the centrifugal separation effect and avoiding a decrease in separation efficiency due to rotational speed fluctuations.

[0068] Furthermore, this built-in drive structure 22 significantly improves the system's compactness and reliability. It eliminates the need for external motors, gearboxes, and other independent drive components, reducing the number of parts and potential failure points, and lowering maintenance complexity. Simultaneously, utilizing the system's own oil supply pressure as a power source results in a simple structure and rapid response. When the oil pump starts supplying oil, the separator 20 responds immediately and enters working condition, requiring no additional control logic or delayed start-up process, ensuring that the centrifugal compressor lubrication system has highly efficient impurity filtration capabilities from the very beginning of startup.

[0069] Reference Figure 3 As shown, in some embodiments, the fuel injection channel 231 includes a transition section 2310 and a fuel injection section 2311. The transition section 2310 extends radially along the mounting shaft 23, and the fuel injection section 2311 is connected to the transition section 2310 at an angle.

[0070] The angled connection between the transition section 2310 and the injection section 2311 primarily serves to change the direction of oil flow and optimize hydrodynamic performance. The transition section 2310 extends radially, guiding the axially flowing lubricating oil to the radial plane; subsequently, through the angled injection section 2311, the oil flow is further deflected tangentially or ejected at a specific angle. This two-stage flow channel design avoids abrupt changes in oil flow at bends, effectively reducing energy loss and local pressure loss during the turning process, thereby improving drive efficiency.

[0071] Furthermore, the reasonable angle between the transition section 2310 and the injection section 2311 allows for more precise control of the fuel injection direction. Compared to a simple straight-through or single-bend structure, this combined design allows the fuel injection direction to be more flexibly parallel to or at an angle to the tangent of the separator 20, thereby optimizing the generation of reaction torque.

[0072] Furthermore, this segmented flow channel structure helps improve the flow stability of lubricating oil under high-speed rotation. The transition section 2310 acts as a buffer zone, stabilizing the flow of oil before it enters the high-speed injection, reducing the generation of turbulence and eddies. The injection section 2311 ensures that the oil is sprayed out at a high speed and a specific angle, maximizing momentum transfer efficiency. This design not only improves the durability of the drive structure 22 but also extends the service life of the mounting shaft 23 and seals, comprehensively enhancing the stability and maintenance convenience of the centrifugal separator during long-term operation.

[0073] In some embodiments, the fuel injection channel 231 is curved.

[0074] The curved design optimizes fluid flow and reduces flow resistance. Compared to straight channels, curved flow paths more smoothly guide lubricating oil from axial entry to radial or tangential exit, avoiding the severe impacts and energy losses that can occur with right-angle turns. This streamlined structure helps reduce pressure loss of the oil at high speeds, ensuring that more oil supply pressure is converted into effective kinetic energy to drive the separator 20 to rotate, thereby improving the energy utilization efficiency of the entire drive system.

[0075] In some embodiments, the fuel injection channel 231 has at least two.

[0076] At least two injection channels 231 are located in the same plane, which can generate symmetrical and balanced driving torque. When lubricating oil is sprayed out in opposite directions from the nozzles of at least two injection channels 231 in the same plane, the resulting reaction forces cancel each other out the radial thrust, leaving only the tangential rotational torque. This layout effectively balances the radial load acting on the mounting shaft 23, avoiding shaft wobble or vibration caused by unilateral force, thereby significantly reducing mechanical wear and ensuring the stability and smooth operation of the separator 20 under high-speed rotation.

[0077] By arranging at least two injection channels 231 spaced apart along the axial direction of the mounting shaft 23, the driving force can be further dispersed, increasing the continuity of the driving torque. Multi-position injection not only improves the uniformity of the driving force distribution but also allows for the arrangement of more nozzles within a limited installation space, thereby achieving a greater total driving torque under the same oil supply pressure. This axially spaced design helps overcome starting inertia, enabling the separator 20 to reach its rated speed more quickly and ensuring sufficient rotational power is maintained even with fluctuations in oil supply flow, ensuring that the centrifugal separation effect is not interrupted by minor pressure changes.

[0078] In some embodiments, the separator 20 further includes a mounting cavity 24, a mounting shaft 23 located within the mounting cavity 24, an oil injection channel 231 communicating with the mounting cavity 24, and one end of the mounting cavity 24 communicating with the oil tank 30.

[0079] Placing the mounting shaft 23 within the mounting cavity 24 not only provides a stable support space for the shaft but also allows the lubricating oil sprayed from the injection channel 231 to flow back to the oil tank 30 via the mounting cavity 24. This return flow design creates a highly efficient closed-loop drive circuit, greatly simplifying the system structure and improving space utilization. By directly guiding the sprayed lubricating oil back to the mounting cavity 24 and then back to the oil tank 30, complex external oil return pipelines or independent drive energy supply systems are eliminated. This not only reduces the number of parts and assembly complexity but also effectively reduces the risk of leakage and pressure loss caused by increased pipeline connections, ensuring stable transmission of drive pressure.

[0080] In terms of operational stability, this return path helps balance oil pressure fluctuations within the system. Since the drive oil ultimately returns to the oil tank 30, excessive extraction or interference of the main oil supply pressure by the drive circuit is avoided, ensuring the stability of the main lubricating oil flow and pressure entering the compressor bearing 60. Simultaneously, the mounting cavity 24, acting as a return buffer area, mitigates the impact of oil ejected at high speed, allowing the oil to further release kinetic energy during the return process, reducing vortices and turbulence, thereby lowering system noise and vibration during operation and improving the overall quietness and stability of the centrifugal compressor.

[0081] In some embodiments, the housing 10 further includes a first oil outlet 13 communicating with the receiving cavity 11, the first oil outlet 13 being used for connection to a compressor; the separation device further includes:

[0082] The first guide member 40 is disposed in the receiving cavity 11 and is disposed opposite to the opening of the separation tank 21. The first guide member 40 includes a guide channel 41, which is connected to the separation tank 21 and the first oil outlet 13 respectively, so that the separated oil flows into the compressor from the first oil outlet 13 through the guide channel 41.

[0083] The first guide element 40 optimizes the collection and delivery path of the separated clean oil. By setting the guide channel 41 at a position opposite to the opening of the separation tank 21, the clean lubricating oil that gathers towards the center under the action of centrifugal force can be directly captured. This relative arrangement utilizes the natural tendency of the oil to move centripetally in the rotating field, reducing the disordered flow and secondary disturbance of the oil in the receiving cavity 11, ensuring the high purity of the lubricating oil before entering the compressor, and avoiding the mixing of clean oil with impurities accumulated on the tank wall, thus structurally ensuring the stability of the output oil quality.

[0084] In the above embodiment, the first flow guide 40 includes at least two flow guide pieces 42 in an annular shape, the at least two flow guide pieces 42 are connected to each other at intervals, and an annular flow guide channel 41 is formed between two adjacent flow guide pieces 42, and at least one filter is disposed in the flow guide channel 41.

[0085] The design of the annular and spaced guide vanes 42 not only increases the effective cross-sectional area for the clean oil to pass through, but also ensures sufficient oil supply flow to meet the lubrication requirements of the centrifugal compressor during high-load operation.

[0086] In terms of filtration efficiency, the filter elements installed within the flow channel 41 form a multi-stage filtration barrier. When the separated oil passes through the flow channel 41, the filter elements can further intercept any tiny particles or flocculent matter that may remain during the centrifugal separation process, significantly improving the cleanliness of the lubricating oil that finally enters the compressor bearing 60. Compared to simple centrifugal separation, adding a physical filtration layer can more effectively control minute impurities, preventing them from entering the precision-fitted bearing 60 clearance, thereby significantly reducing the risk of bearing 60 wear and extending the service life of the compressor's core components.

[0087] Furthermore, the annular guide vane 42's structural design optimizes the flow field distribution and reduces flow resistance. The uniformly distributed annular guide vane 42 ensures more even force distribution on the oil as it passes through, preventing turbulence or pressure loss caused by excessively high local flow velocities. Simultaneously, the filter element is embedded within the guide channel 41, resulting in a compact structure that eliminates the need for external filter elements, simplifying maintenance. When filter element replacement or cleaning is required, the integrated structural design allows for quick disassembly and assembly, reducing daily maintenance workload and costs, and improving equipment maintainability.

[0088] Reference Figure 2 As shown, in some embodiments, the separation device further includes a second guide member 50 disposed in the receiving cavity 11. The second guide member 50 is cylindrical to form an oil guiding channel. One end of the second guide member 50 is connected to the oil inlet 12, and the other end of the second guide member 50 extends into the separation tank 21 so that the lubricating oil supplied by the oil tank 30 flows into the separation tank 21 after passing through the oil inlet 12 and the oil guiding channel.

[0089] In some embodiments, the housing 10 further includes a first oil outlet 13 communicating with the receiving cavity 11, the first oil outlet 13 being used to connect to the compressor; the housing 10 further includes a discharge outlet 14 communicating with the receiving cavity 11, the discharge outlet 14 being located below the first oil outlet 13; the diameter of the separation tank 21 gradually increases along the direction from the discharge outlet 14 to the first oil outlet 13, so that the separated impurities are discharged from the tank wall of the separation tank 21 through the edge of the tank opening of the separation tank 21 and from the discharge outlet 14.

[0090] The layout design of the outlet 14 and the first oil outlet 13 utilizes the combined effect of gravity and centrifugal force to remove impurities. Impurities accumulated on the wall of the separation tank 21 are thrown towards the tank wall under centrifugal force and move outwards as the tank wall's diameter gradually increases. When the impurities reach the edge of the tank opening, they smoothly slide into the outlet 14 under gravity without interfering with the flow of clean oil above. This spatial layout avoids the accumulation of impurities near the oil outlet, prevents secondary mixing of impurities into the clean oil path, and structurally ensures the purity of the output oil.

[0091] Furthermore, through the structural design of the separation tank 21, as the diameter increases, the distance between the tank wall and the center of rotation increases, and the centrifugal force also increases. This helps to more firmly adhere the tiny particles to the tank wall, preventing them from being resuspended due to fluid turbulence. At the same time, the gradually expanding space provides sufficient area to accommodate impurities, forming a sedimentation zone and preventing premature accumulation of impurities that could cause channel blockage. This geometry not only increases the effective volume of the separation tank 21 but also allows impurities to slide naturally down the expanded slope under gravity, reducing frictional resistance and ensuring smooth discharge.

[0092] According to another aspect of the present invention, a compressor system is provided, including a compressor, an oil tank 30, and the aforementioned separation device.

[0093] Reference Figure 1 As shown, in some embodiments, the compressor system further includes a first connecting pipe 1, a second connecting pipe 2, a third connecting pipe 3, a fourth connecting pipe 4, and a fifth connecting pipe 5;

[0094] The first connecting pipe 1 is connected to the oil tank 30 and the oil inlet 12 of the separator respectively; the second connecting pipe 2 is connected to the oil tank 30 and the oil supply channel 230 of the separator respectively; the third connecting pipe 3 is connected to the oil tank 30 and the mounting cavity 24 of the separator respectively; the fourth connecting pipe 4 is connected to the first oil outlet 13 of the separator and the compressor respectively; the fifth connecting pipe 5 is connected to the second oil outlet at the bearing 60 of the oil tank 30 and the compressor respectively.

[0095] This multi-point oil supply design not only meets the high-pressure oil requirements of the high-speed rotation of the separator 20, but also avoids mutual interference between the drive oil circuit and the main lubrication oil circuit through path isolation. After completing the work of driving the separator 20 to rotate, the drive oil flows back to the oil tank 30, maximizing energy utilization and ensuring the continuous and efficient operation of the drive components.

[0096] The fourth connecting pipe 4 is used to deliver clean lubricating oil to the compressor bearing 60, ensuring that the bearing 60 and other critical friction pairs receive high-cleanliness lubricating oil. This cuts off the path for impurities to enter the compressor from the source. Direct oil supply through a dedicated pipeline reduces the risk of oil contamination during long-distance transmission, improves the response speed and oil supply accuracy of the lubrication system, and effectively extends the service life of the compressor bearing 60.

[0097] The fifth connecting pipe 5 completes the final closure of the main lubrication circuit, leading the returned oil from the compressor bearing 60 back to the oil tank 30. This return oil pipe not only balances the oil volume within the system, preventing overflow or insufficient oil supply to the oil tank 30, but also uses the returned oil to carry away the heat generated by the bearing 60, providing auxiliary cooling. Through a rational piping layout, the entire system achieves continuous lubrication, efficient lubrication, and heat management, significantly improving the reliability and stability of the centrifugal compressor during long-term operation.

[0098] In some embodiments, the compressor system further includes a temperature detection module 6, a flow regulation module, and a control module;

[0099] Temperature detection module 6 is installed on the fifth connecting pipe 5 to detect the temperature of the lubricating oil in the fifth connecting pipe 5;

[0100] The flow regulation module is connected to the first connecting pipe 1 and the second connecting pipe 2;

[0101] The control module is connected to the temperature detection module 6 and the flow regulation module respectively. The control module is configured to control the opening degree of the first connecting pipe 1 and / or the second connecting pipe 2 according to the temperature of the lubricating oil in the fifth connecting pipe 5 detected by the detection module 6.

[0102] The temperature detection module 6 typically employs a high-precision resistance temperature detector (RTD) sensor (such as PT100) or thermocouple sensor, directly embedded in the wall of the fifth connecting pipe 5 or inserted into the oil flow. Its core function is to capture the temperature of the lubricating oil flowing through the compressor bearing 60 in real time and accurately. Since the lubricating oil's temperature rises after carrying away heat from the bearing 60, this temperature data directly reflects the lubrication status, frictional heat generation, and cooling effect of the bearing 60. Placing the sensor in the fifth connecting pipe 5 allows for the acquisition of an oil temperature closer to the actual operating environment of the bearing 60, thus providing the most accurate thermal load feedback signal for the control strategy and avoiding the risk of the bearing 60 overheating due to a lower oil supply temperature.

[0103] The flow regulation module mainly consists of proportional control valves or electric control valves, connected to the first connecting pipe 1 and the second connecting pipe 2. These valves can quickly adjust the flow cross-sectional area within the pipes according to the electrical signals issued by the control module, thereby precisely controlling the amount of oil entering the separation device drive system and the amount of oil entering the compressor's main lubrication system. By adjusting the valve opening, the module achieves dynamic distribution of hydraulic power.

[0104] The control module is typically a dedicated electronic control unit (ECU) or PLC controller with a built-in temperature PID control algorithm. It receives real-time temperature signals from the temperature detection module 6 and compares them with preset safe temperature thresholds.

[0105] When the return oil temperature is detected to be higher than the set value, the control module determines that the system heat dissipation is insufficient or the lubrication flow is insufficient, and then issues a command to increase the valve opening of the first connecting pipe 1 to guide more oil to the compressor bearing 60 to enhance the cooling effect.

[0106] Conversely, if the oil temperature is normal or too low, the flow rate of the second connecting pipe 2 is appropriately increased to raise the rotation speed of the separator 20 and enhance the impurity filtration capacity. This closed-loop control strategy achieves a dynamic balance between lubricating oil supply and lubricating oil impurity separation, preventing overheating damage to the bearing 60 while ensuring the continuous cleanliness of the lubricating oil.

[0107] In some embodiments, the flow regulation module includes a first regulating valve 7 and a second regulating valve 8;

[0108] The first regulating valve 7 is provided on the first connecting pipe 1 to regulate the opening degree of the first connecting pipe 1;

[0109] The second regulating valve 8 is installed on the second connecting pipe 2 to regulate the opening degree of the second connecting pipe 2.

[0110] When the oil temperature measurement value is higher than the set value, the first regulating valve 7 needs to increase the opening of the first connecting pipe 1, that is, increase the pressure on the compressor side and increase the oil supply, thereby reducing the temperature of the bearing 60; when the oil temperature measurement value is lower than the set value, the second regulating valve 8 needs to increase the opening of the second connecting pipe 2, that is, increase the pressure on the separator side, thereby increasing the rotation speed of the separator 20, increasing the centrifugal force, and improving the impurity separation and filtration effect.

[0111] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0112] The pressure energy of the lubricating oil supplied by the oil tank 30 is directly converted into mechanical energy, driving the separator 20 to rotate and generate centrifugal force, thereby separating particulate impurities from the lubricating oil. This design eliminates the need for an additional motor or external power source, simplifying the system structure and reducing energy consumption and manufacturing costs. Furthermore, since the power source is the same as the oil supply system, the separation process is closely linked to the oil supply process, ensuring automatic start-up and maintenance of a stable separation speed under oil supply pressure. This improves the system's integration and reliability, thus helping to solve the technical problem of filtering tiny particulate impurities in lubricating oil in related technologies.

[0113] 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.

[0114] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0115] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0116] 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.

[0117] 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 separation device, characterized in that, include: The housing (10) includes a receiving cavity (11) and an oil inlet (12) communicating with the receiving cavity (11), the oil inlet (12) being used to connect to the oil tank (30); A separator (20) is rotatably disposed within the receiving cavity (11). The separator (20) includes a separation groove (21) and a drive structure (22). The oil inlet (12) communicates with the separation groove (21). The separation groove (21) is used to contain lubricating oil supplied by the oil tank (30) to separate oil and impurities in the lubricating oil by centrifugal force generated during the rotation of the separator (20). The drive structure (22) is used to communicate with the oil tank (30). The drive structure (22) is configured to drive the separator (20) to rotate by the pressure of the lubricating oil supplied by the oil tank (30).

2. The separation device according to claim 1, characterized in that, The driving structure (22) includes: The mounting shaft (23) includes a connected oil supply channel (230) and an oil injection channel (231). The oil supply channel (230) extends along the axial direction of the separator (20), and one end of the oil supply channel (230) is used to communicate with the oil tank (30). The extension direction of the oil injection channel (231) is set at an angle to the axial direction of the separator (20), and the oil injection direction of the end of the oil injection channel (231) away from the oil supply channel (230) is set at an angle to the tangential direction of the separator (20) or is parallel to each other.

3. The separation device according to claim 2, characterized in that, The fuel injection channel (231) includes a transition section (2310) and a fuel injection section (2311). The transition section (2310) extends radially along the mounting shaft (23), and the fuel injection section (2311) is connected to the transition section (2310) at an angle; or, The oil injection channel (231) is curved.

4. The separation device according to claim 2, characterized in that, The fuel injection channel (231) has at least two; At least two of the said fuel injection channels (231) are located in the same plane; and / or, At least two of the oil injection channels (231) are spaced apart along the axial direction of the mounting shaft (23).

5. The separation device according to claim 2, characterized in that, The separator (20) also includes a mounting cavity (24), the mounting shaft (23) is located in the mounting cavity (24), the oil injection channel (231) is connected to the mounting cavity (24), and one end of the mounting cavity (24) is used to connect to the oil tank (30).

6. The separation apparatus according to any one of claims 1 to 5, characterized in that, The housing (10) further includes a first oil outlet (13) communicating with the receiving cavity (11), the first oil outlet (13) being used for connection to the compressor; the separation device further includes: The first guide member (40) is disposed in the receiving cavity (11) and is disposed opposite to the opening of the separation tank (21). The first guide member (40) includes a guide channel (41), which is connected to the separation tank (21) and the first oil outlet (13) respectively, so that the separated oil flows into the compressor from the first oil outlet (13) through the guide channel (41).

7. The separation device according to claim 6, characterized in that, The first flow guide (40) includes at least two flow guide plates (42) in an annular shape, the at least two flow guide plates (42) are connected to each other at intervals, and the flow guide channel (41) is formed between two adjacent flow guide plates (42), and at least one filter is provided in the flow guide channel (41).

8. The separation apparatus according to any one of claims 1 to 5, characterized in that, The housing (10) further includes a first oil outlet (13) communicating with the receiving cavity (11), the first oil outlet (13) being used to connect to the compressor; the housing (10) further includes a discharge outlet (14) communicating with the receiving cavity (11), the discharge outlet (14) being located below the first oil outlet (13); the diameter of the separation tank (21) gradually increases along the direction from the discharge outlet (14) to the first oil outlet (13), so that the separated impurities are discharged from the tank wall of the separation tank (21) through the edge of the tank opening of the separation tank (21) through the discharge outlet (14).

9. A compressor system, characterized in that, It includes a compressor, an oil tank (30), and a separation device according to any one of claims 1 to 8.

10. The compressor system according to claim 9, characterized in that, The compressor system also includes: The first connecting pipe (1) is connected to the oil tank (30) and the oil inlet (12) of the separation device respectively; The second connecting pipe (2) is connected to the oil tank (30) and the oil supply channel (230) of the separation device respectively; The third connecting pipe (3) is connected to the oil tank (30) and the mounting cavity (24) of the separation device, respectively; The fourth connecting pipe (4) is connected to the first oil outlet (13) of the separation device and the compressor, respectively; The fifth connecting pipe (5) is connected to the second oil outlet at the bearing (60) of the oil tank (30) and the compressor, respectively.

11. The compressor system according to claim 10, characterized in that, The compressor system also includes: A temperature detection module (6) is installed on the fifth connecting pipe (5) to detect the temperature of the lubricating oil in the fifth connecting pipe (5); The flow regulation module is connected to the first connecting pipe (1) and the second connecting pipe (2); The control module is connected to the temperature detection module (6) and the flow regulation module respectively. The control module is configured to control the opening degree of the first connecting pipe (1) and / or the second connecting pipe (2) according to the temperature of the lubricating oil in the fifth connecting pipe (5) detected by the detection module (6).

12. The compressor system according to claim 11, characterized in that, The flow regulation module includes: A first regulating valve (7) is disposed on the first connecting pipe (1) for adjusting the opening degree of the first connecting pipe (1); and / or, The second regulating valve (8) is installed on the second connecting pipe (2) to regulate the opening degree of the second connecting pipe (2).

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