Vacuum pump oil gas filtration condensing system
By designing a vacuum pump oil-gas filtration and condensation system, the problems of pipeline blockage and environmental pollution caused by vacuum pump oil-gas condensation were solved, achieving long-term stable operation and efficient exhaust of the vacuum pump.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HULUDAO HUAYUAN TECH CO LTD
- Filing Date
- 2025-09-18
- Publication Date
- 2026-07-14
AI Technical Summary
During operation, the oil-gas mixture enters the exhaust pipe through the exhaust port and condenses, causing pipe blockage and environmental pollution, affecting equipment efficiency and the health of operators.
A vacuum pump oil-gas filtration and condensation system was designed, including an oil-gas filtration component, a condensation reflux component, and a cooling circulation component. Through primary filtration, cooling and condensation, and circulating cooling, the oil-gas is converted into liquid and refluxed back to the oil storage structure, reducing pipeline blockage and emission pollution.
It effectively reduces pipeline blockage, improves exhaust efficiency, improves the operating environment, reduces potential health impacts, and ensures long-term stable operation of the vacuum pump.
Smart Images

Figure CN224496688U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to oil gas separation technical field, specifically a kind of vacuum pump oil gas filtering condensing system. BACKGROUND
[0002] In the field of metal processing, to realize the high-quality heat treatment of metal materials, it is often necessary to complete the processing process in a vacuum environment with the help of a metal heating furnace. As a key device for obtaining a vacuum environment, the running stability and working efficiency of the vacuum pump directly affect the progress of the related process. With the continuous improvement of the requirements for production precision and experimental accuracy in various industries, the demand for long-term continuous operation of the vacuum pump is increasing, and during its operation, some inherent technical problems gradually appear, which have adverse effects on the performance of the equipment and the surrounding environment.
[0003] When the vacuum pump is working, the mechanical friction of the internal components will continuously generate heat, causing the overall temperature of the equipment to gradually rise. During this process, the pump oil used for lubrication and sealing inside the vacuum pump will vaporize due to the temperature rise. These vaporized oil and gas will enter the exhaust pipeline through the exhaust port and be discharged outside the equipment during the exhaust process of the vacuum pump. On the one hand, when the oil and gas flow in the exhaust pipeline, some of the oil and gas may condense on the inner wall of the pipeline, and long-term accumulation can cause pipeline blockage, which not only requires workers to spend a lot of time and effort to clean the pipeline, but also affects the exhaust efficiency of the vacuum pump, thereby reducing the overall efficiency of the equipment. On the other hand, the oil and gas discharged outside the equipment will be directly released into the surrounding environment, causing pollution to the operating environment and potentially affecting the health of the operators. SUMMARY
[0004] The utility model aims at solving the above-mentioned problems, and provides a vacuum pump oil gas filtering condensing system that fully filters oil and gas and prolongs service life.
[0005] The utility model solves the problem by adopting the following technical scheme:
[0006] A vacuum pump oil gas filtering condensing system, comprising a vacuum pump body, an oil and gas filtering assembly, a condensing and reflux assembly, and a cooling circulation assembly;
[0007] The gas inlet end of the oil and gas filtering assembly is in communication with the exhaust end of the vacuum pump body, and is used for primary filtering and oil and gas separation of the oil and gas mixture discharged by the vacuum pump body;
[0008] The gas inlet end of the condensing and reflux assembly is in communication with the gas outlet end of the oil and gas filtering assembly, and is used for cooling and condensing the remaining oil and gas discharged by the oil and gas filtering assembly, so as to convert the oil and gas into liquid oil;
[0009] The cooling circulation assembly is connected to the condensation reflux assembly and is used to provide a continuous cooling medium to the condensation reflux assembly in order to maintain the condensation effect of the condensation reflux assembly.
[0010] The oil and gas filtration assembly is provided with an oil storage structure. The air inlet of the condensation reflux assembly is connected to the oil storage structure, so that the liquid oil condensed by the condensation reflux assembly flows back into the oil storage structure. The oil storage structure is provided with an oil discharge component for discharging the liquid oil collected in the oil storage structure.
[0011] Furthermore, the oil and gas filtration assembly includes a filter tank, a filter element, and an inlet chamber and an outlet chamber that are sealed and connected within the filter tank.
[0012] The air intake chamber forms the air intake end of the oil-gas filter assembly, and the air outlet chamber forms the air outlet end of the oil-gas filter assembly.
[0013] The filter element is disposed inside the filter canister and is sealed to the air intake chamber.
[0014] The bottom of the filter tank forms the oil storage structure, and the oil discharge component is an oil discharge valve located at the bottom of the filter tank, with the oil outlet of the oil discharge valve forming an oil discharge port.
[0015] The sealed filter element and air inlet chamber reduce the chance of unfiltered oil-gas mixtures entering the air outlet chamber directly, improving the effect of primary filtration and separation. The bottom of the filter tank forms an oil storage structure directly, eliminating the need for additional independent oil storage components and simplifying the overall structure. The design of the oil drain valve allows operators to flexibly control the oil discharge according to the actual oil volume, making operation convenient and preventing excessive oil from affecting the normal operation of the filter components.
[0016] Furthermore, the air intake chamber is connected to the exhaust end of the vacuum pump body through a first connecting pipe, and the first connecting pipe is connected to both the air intake chamber and the exhaust end of the vacuum pump body by a sealing clamp.
[0017] The air outlet chamber is connected to the air inlet of the condensation reflux assembly by a sealing clamp; this facilitates the installation and disassembly of the assembly by staff, making equipment maintenance or component replacement more efficient.
[0018] Furthermore, the condensation reflux assembly includes an irregularly shaped vacuum tube and a cooling water jacket;
[0019] The irregularly shaped vacuum tube is inclined, with its two ends forming the inlet and outlet of the condensation reflux assembly, respectively, and the height of the outlet is higher than that of the inlet. The inclined design with the outlet higher than the inlet utilizes gravity to assist the reflux of liquid oil, eliminating the need for additional power components and reducing energy consumption.
[0020] The cooling water jacket is fitted onto the outside of the irregularly shaped vacuum tube. The cooling water jacket is equipped with an inlet and an outlet for receiving and discharging the cooling medium, respectively. The way the cooling water jacket is fitted increases the contact area with the irregularly shaped vacuum tube, improves the cooling efficiency of the oil and gas inside the tube, helps the remaining oil and gas to condense more fully into liquid oil, and further reduces the oil and gas content in the subsequent exhaust.
[0021] Furthermore, the cooling circulation assembly includes a cooling water tank, a circulating water pump, and a refrigeration component;
[0022] The outlet of the cooling water tank is connected to the inlet of the circulating water pump via a pipe, and the outlet of the circulating water pump is connected to the inlet of the cooling water jacket via a pipe. The outlet of the cooling water jacket is connected to the return port of the cooling water tank via a pipe, forming a circulation loop for the cooling medium. This enables the reuse of the cooling medium and reduces its consumption.
[0023] The refrigeration component is installed inside the cooling water tank to cool the cooling medium inside the tank and maintain its low temperature. The refrigeration component can maintain the low temperature of the cooling medium in real time, ensuring the cooling capacity of the cooling medium to the condensation reflux assembly, thereby ensuring the continuous and stable operation of the condensation assembly.
[0024] Furthermore, the refrigeration component includes titanium heat exchange tubes, which are coiled and distributed within the cooling water tank, with both ends connected to an external refrigeration unit. The external refrigeration unit provides cooling to the titanium heat exchange tubes, thereby cooling the cooling medium within the cooling water tank. Titanium has good corrosion resistance, allowing it to withstand long-term contact with the cooling medium and extending the service life of the heat exchange tubes. The tubular distribution increases the contact area between the heat exchange tubes and the cooling medium, improving the efficiency of cold transfer and enabling the cooling medium to reach the required low temperature more quickly.
[0025] Compared with the prior art, the outstanding features of this utility model, which adopts the above technical solution, are:
[0026] This vacuum pump oil-gas filtration and condensation system adds an oil-gas filtration component, a condensation reflux component, and a cooling circulation component to the vacuum pump body, forming a complete system for treating the exhaust oil and gas of the vacuum pump. This solves the problems of pipeline blockage, reduced exhaust efficiency, and environmental pollutant emissions, providing support for the long-term stable operation of the vacuum pump.
[0027] The oil-gas filter assembly performs initial filtration and separation of the exhaust oil-gas mixture, collecting some of the oil in the oil storage structure, reducing the amount of oil entering subsequent pipelines, lowering the probability of pipeline condensation and blockage, reducing cleaning frequency, reducing maintenance burden, and helping to maintain stable exhaust efficiency.
[0028] The condensation reflux assembly further processes the remaining oil and gas, cooling and condensing it into liquid oil, which is then returned to the oil storage structure. This further reduces the risk of pipeline blockage, reduces the amount of oil and gas emitted to the outside, improves the operating environment, and reduces the potential impact on the health of operators.
[0029] The cooling circulation component continuously provides cooling medium to the condensation reflux component, ensuring stable condensation performance, preventing external factors from interfering with oil and gas processing capacity, ensuring the continuous and effective operation of the entire processing system, and providing reliable support for the long-term stable operation of the vacuum pump. Attached Figure Description
[0030] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model;
[0031] The components in the diagram are labeled as follows: 1. Vacuum pump body; 2. Oil and gas filter assembly; 3. Condensation reflux assembly; 4. Cooling circulation assembly; 5. Oil storage structure; 6. Oil drain component; 7. First connecting pipe; 8. Sealing clamp; 9. Refrigeration unit; 21. Filter tank; 22. Filter element; 23. Air inlet chamber; 24. Air outlet chamber; 31. Irregularly shaped vacuum tube; 32. Cooling water jacket; 33. Water inlet interface; 34. Water outlet interface; 41. Cooling water tank; 42. Circulating water pump; 43. Refrigeration component; 61. Oil drain port. Detailed Implementation
[0032] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.
[0033] See Figure 1 A vacuum pump oil-gas filtration and condensation system includes a vacuum pump body 1, an oil-gas filtration component 2, a condensation reflux component 3, and a cooling circulation component 4.
[0034] The inlet end of the oil-gas filter assembly 2 is connected to the outlet end of the vacuum pump body 1, and is used to perform initial filtration and oil-gas separation on the oil-gas mixture discharged from the vacuum pump body 1.
[0035] The air inlet of the condensation reflux assembly 3 is connected to the air outlet of the oil and gas filter assembly 2, and is used to cool and condense the remaining oil and gas discharged from the oil and gas filter assembly 2, so that the oil and gas are converted into liquid oil.
[0036] The cooling circulation component 4 is connected to the condensation reflux component 3 and is used to provide a continuous cooling medium to the condensation reflux component 3 in order to maintain the condensation effect of the condensation reflux component 3.
[0037] The oil and gas filter assembly 2 is provided with an oil storage structure 5. The air inlet of the condensation reflux assembly 3 is connected to the oil storage structure 5, so that the liquid oil condensed by the condensation reflux assembly 3 flows back into the oil storage structure 5. The oil storage structure 5 is provided with an oil discharge component 6 for discharging the liquid oil collected in the oil storage structure 5.
[0038] The oil and gas filtration assembly 2 includes a filter tank 21, a filter element 22, and an air inlet chamber 23 and an air outlet chamber 24 sealed and connected within the filter tank 21.
[0039] The air inlet chamber 23 forms the air inlet end of the oil-gas filter assembly 2, and the air outlet chamber 24 forms the air outlet end of the oil-gas filter assembly 2.
[0040] The filter element 22 is disposed inside the filter canister 21, and the filter element 22 is sealed to the air intake chamber 23.
[0041] The bottom of the filter tank 21 forms the oil storage structure 5, and the oil discharge component 6 is an oil discharge valve provided at the bottom of the filter tank 21, with the oil outlet of the oil discharge valve forming an oil discharge port 61.
[0042] The sealed filter element 22 and the air inlet chamber 23 can reduce the situation where the oil-gas mixture enters the air outlet chamber 24 directly without filtration, thus improving the effect of primary filtration and separation. The bottom of the filter tank 21 directly forms the oil storage structure 5, eliminating the need for additional independent oil storage components and simplifying the overall structure. The design of the oil drain valve allows the operator to flexibly control the oil discharge according to the actual oil volume, making operation convenient and preventing excessive oil from affecting the normal operation of the filter components.
[0043] The air intake chamber 23 is connected to the exhaust end of the vacuum pump body 1 through a first connecting pipe 7. The first connecting pipe 7 is connected to the air intake chamber 23 and the exhaust end of the vacuum pump body 1 by a sealing clamp 8.
[0044] The air outlet chamber 24 is connected to the air inlet of the condensation reflux assembly 3 by a sealing clamp 8; this facilitates the installation and disassembly of the assembly by the staff, and makes equipment maintenance or component replacement more efficient.
[0045] The condensation reflux assembly 3 includes an irregularly shaped vacuum tube 31 and a cooling water jacket 32;
[0046] The irregularly shaped vacuum tube 31 is inclined, with its two ends forming the inlet and outlet of the condensation reflux assembly 3, respectively, and the height of the outlet is higher than the height of the inlet. The inclined design of the outlet being higher than the inlet utilizes gravity to assist the reflux of liquid oil, eliminating the need for additional power components and reducing energy consumption.
[0047] The cooling water jacket 32 is fitted onto the outside of the irregularly shaped vacuum tube 31. The cooling water jacket 32 is provided with an inlet 33 and an outlet 34, which are used to connect and discharge the cooling medium, respectively. The way the cooling water jacket 32 is fitted can increase the contact area with the irregularly shaped vacuum tube 31, improve the cooling efficiency of the oil and gas inside the tube, help the remaining oil and gas to condense into liquid oil more fully, and further reduce the oil and gas content in the subsequent exhaust.
[0048] The cooling circulation assembly 4 includes a cooling water tank 41, a circulating water pump 42, and a refrigeration component 43;
[0049] The outlet of the cooling water tank 41 is connected to the inlet of the circulating water pump 42 via a pipe, and the outlet of the circulating water pump 42 is connected to the inlet 33 of the cooling water jacket 32 via a pipe; the outlet 34 of the cooling water jacket 32 is connected to the return port of the cooling water tank 41 via a pipe, forming a circulation loop for the cooling medium; thus realizing the reuse of the cooling medium and reducing its consumption.
[0050] The refrigeration component 43 is installed inside the cooling water tank 41 and is used to cool the cooling medium inside the cooling water tank 41 and maintain the low temperature of the cooling medium. The refrigeration component 43 can maintain the low temperature of the cooling medium in real time, ensuring the cooling capacity of the cooling medium to the condensation reflux assembly 3, thereby ensuring the continuous and stable operation of the condensation assembly.
[0051] The refrigeration component 43 includes titanium heat exchange tubes, which are coiled and distributed within the cooling water tank 41. Both ends of the titanium heat exchange tubes are connected to an external refrigeration unit 9. The external refrigeration unit 9 provides cooling to the titanium heat exchange tubes, thereby cooling the cooling medium within the cooling water tank 41. Titanium has good corrosion resistance, allowing it to withstand long-term contact with the cooling medium and extending the service life of the heat exchange tubes. The tubular distribution increases the contact area between the heat exchange tubes and the cooling medium, improving the efficiency of heat transfer and enabling the cooling medium to reach the required low temperature more quickly.
[0052] This vacuum pump oil-gas filtration and condensation system adds an oil-gas filtration component, a condensation reflux component, and a cooling circulation component to the vacuum pump body, forming a complete system for treating the exhaust oil and gas of the vacuum pump. This solves the problems of pipeline blockage, reduced exhaust efficiency, and environmental pollutant emissions, providing support for the long-term stable operation of the vacuum pump.
[0053] The oil-gas filter assembly performs initial filtration and separation of the exhaust oil-gas mixture, collecting some of the oil in the oil storage structure, reducing the amount of oil entering subsequent pipelines, lowering the probability of pipeline condensation and blockage, reducing cleaning frequency, reducing maintenance burden, and helping to maintain stable exhaust efficiency.
[0054] The condensation reflux assembly further processes the remaining oil and gas, cooling and condensing it into liquid oil, which is then returned to the oil storage structure. This further reduces the risk of pipeline blockage, reduces the amount of oil and gas emitted to the outside, improves the operating environment, and reduces the potential impact on the health of operators.
[0055] The cooling circulation component continuously provides cooling medium to the condensation reflux component, ensuring stable condensation performance, preventing external factors from interfering with oil and gas processing capacity, ensuring the continuous and effective operation of the entire processing system, and providing reliable support for the long-term stable operation of the vacuum pump.
[0056] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.
Claims
1. A vacuum pump oil-gas filtration and condensation system, comprising a vacuum pump body, characterized in that: It also includes oil and gas filtration components, condensate reflux components, and cooling circulation components; The inlet end of the oil-gas filter assembly is connected to the exhaust end of the vacuum pump body, and is used to perform initial filtration and oil-gas separation on the oil-gas mixture discharged from the vacuum pump body. The air inlet of the condensation reflux assembly is connected to the air outlet of the oil and gas filter assembly, and is used to cool and condense the remaining oil and gas discharged from the oil and gas filter assembly, so that the oil and gas are converted into liquid oil. The cooling circulation assembly is connected to the condensation reflux assembly and is used to provide a continuous cooling medium to the condensation reflux assembly in order to maintain the condensation effect of the condensation reflux assembly. The oil and gas filtration assembly is provided with an oil storage structure. The air inlet of the condensation reflux assembly is connected to the oil storage structure, so that the liquid oil condensed by the condensation reflux assembly flows back into the oil storage structure. The oil storage structure is provided with an oil discharge component for discharging the liquid oil collected in the oil storage structure.
2. The vacuum pump oil-gas filtration and condensation system according to claim 1, characterized in that: The oil and gas filtration assembly includes a filter tank, a filter element, and an inlet chamber and an outlet chamber that are sealed and connected within the filter tank. The air intake chamber forms the air intake end of the oil-gas filter assembly, and the air outlet chamber forms the air outlet end of the oil-gas filter assembly. The filter element is disposed inside the filter canister and is sealed to the air intake chamber. The bottom of the filter tank forms the oil storage structure, and the oil discharge component is an oil discharge valve located at the bottom of the filter tank, with the oil outlet of the oil discharge valve forming an oil discharge port.
3. The vacuum pump oil-gas filtration and condensation system according to claim 2, characterized in that: The air intake chamber is connected to the exhaust end of the vacuum pump body through a first connecting pipe, and the first connecting pipe is connected to both the air intake chamber and the exhaust end of the vacuum pump body by a sealing clamp. The air outlet chamber is connected to the air inlet of the condensation reflux assembly by a sealing clamp.
4. The vacuum pump oil-gas filtration and condensation system according to claim 1, characterized in that: The condensation reflux assembly includes an irregularly shaped vacuum tube and a cooling water jacket; The irregularly shaped vacuum tube is inclined, with its two ends forming the inlet and outlet of the condensation reflux assembly, respectively, and the height of its outlet is higher than the height of its inlet. The cooling water jacket is fitted onto the outside of the irregularly shaped vacuum tube. The cooling water jacket is equipped with an inlet and an outlet for receiving and discharging the cooling medium, respectively.
5. The vacuum pump oil-gas filtration and condensation system according to claim 4, characterized in that: The cooling circulation assembly includes a cooling water tank, a circulating water pump, and refrigeration components; The outlet of the cooling water tank is connected to the inlet of the circulating water pump via a pipe, and the outlet of the circulating water pump is connected to the inlet of the cooling water jacket via a pipe; the outlet of the cooling water jacket is connected to the return port of the cooling water tank via a pipe, forming a circulation loop for the cooling medium. The refrigeration component is installed inside the cooling water tank and is used to cool the cooling medium inside the cooling water tank to maintain the low temperature of the cooling medium.
6. The vacuum pump oil-gas filtration and condensation system according to claim 5, characterized in that: The refrigeration component includes titanium heat exchange tubes, which are coiled and distributed inside the cooling water tank, and both ends of the titanium heat exchange tubes are connected to an external refrigeration unit.