Oil mist tank oil gas filtering device for ship
By using a motor-driven gear to drive the connecting rod and filter cover in the oil mist chamber's oil and gas filtration and collection mechanism to perform centrifugal motion, combined with a negative pressure pump and scraper to clean the inner wall, the problem of filter hole clogging is solved, achieving efficient oil and gas filtration and cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN GUANDU EQUIP MFG CO LTD
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-14
AI Technical Summary
Existing oil mist chamber oil-gas filtration devices are prone to clogging of filter holes after prolonged use, resulting in poor filtration performance. A self-cleaning mechanism needs to be designed to ensure effective filtration over a long period of time.
The oil mist chamber employs an oil and gas filtration and collection mechanism, including a connecting rod, gear ring, gear, connecting ring, bearing, and filter cover. The gear is driven by a motor to rotate, which in turn causes the connecting rod and filter cover to undergo centrifugal motion. A negative pressure pump and scraper are used to clean the inner wall of the oil mist chamber, achieving self-cleaning.
It effectively avoids filter clogging, improves oil and gas collection efficiency, ensures long-term filtration effect, and enhances oil and gas collection capacity.
Smart Images

Figure CN224113568U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oil mist box oil-gas filtration technology, specifically a marine oil mist box oil-gas filtration device. Background Technology
[0002] Currently, the main function of the oil mist box is to collect oil and gas and prevent them from leaking into the outside atmosphere. The oil mist box is usually located inside the top of the chimney near the ventilation louvers. It is used to collect oil and gas from the vent pipes of each oil tank and the main engine and auxiliary machines. Through the rapid expansion and temperature drop of the oil mist box, the oil mist in the oil and gas is precipitated and collected, and finally discharged into the oil sludge tank, sludge tank, etc. through the discharge pipe.
[0003] Common oil mist chamber oil and gas filtration devices include paper box filters, centrifugal filters, electrostatic filters, cartridge filters, and nano-deep filters, which can effectively filter the oil and gas in the oil mist chamber.
[0004] In the above filtration methods, the filter will inevitably become clogged with oil and gas after long-term use, eventually making it difficult for the filter to achieve a good filtration effect. Therefore, a new technical solution needs to be designed to solve this problem, which can perform self-cleaning of the filter at regular intervals to ensure long-term use. Utility Model Content
[0005] The purpose of this invention is to provide a marine oil mist box oil and gas filtration device, which solves the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a marine oil mist box oil and gas filtration device, including an oil mist box, a threaded groove is provided at the bottom port of the oil mist box, an exhaust pipe is connected and installed on one side of the top of the oil mist box, and an oil and gas filtration and collection mechanism is installed inside the oil mist box.
[0007] The oil and gas filtration and collection mechanism includes a docking rod rotatably mounted on the top of the inner wall of the oil mist box, a toothed ring fixedly mounted on the side wall of the docking rod, a gear meshing with the toothed ring, a connecting ring mounted on the bottom of the oil mist box, a bearing fixedly mounted on the inner wall of the connecting ring, and a filter cover fixedly mounted on the inner shaft of the bearing.
[0008] As an optional solution to the technical solution of this application, the outer wall of the connecting ring is provided with an external thread, and the connecting ring is threadedly connected to the threaded groove.
[0009] As an optional solution to the technical solution of this application, a docking cover is fixedly installed on the top of the filter cover, and a hexagonal slot is provided on the inner wall of the docking cover. The hexagonal slot and the docking rod are engaged with each other and can drive the filter cover to rotate synchronously.
[0010] As an optional solution to the technical solution of this application, a motor is fixedly installed on one side of the top of the oil mist box. The motor drive output end is connected to the transmission shaft, and the other end of the transmission shaft is fixedly installed to the gear shaft, which can drive the gear to rotate.
[0011] As an optional solution to the technical solution of this application, an oil suction pipe is installed on the side wall of the oil mist box, and the other end of the oil suction pipe is connected to the negative pressure end of the negative pressure pump, so that negative pressure can be delivered to the oil suction pipe.
[0012] As an optional solution to the technical solution of this application, mounting brackets are fixedly installed at both ends of the side wall of the filter cover, and scrapers are fixedly installed at the other ends of the two sets of mounting brackets. The scrapers are in contact with the inner wall of the oil mist box and can clean the inner wall of the oil mist box.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. The technical solution of this application drives the gear to rotate via a drive motor. The gear ring meshing with the gear drives the docking rod to rotate. Since the bottom of the docking rod fits into the hexagonal slot inside the docking cover, it can synchronously drive the filter cover inside the oil and gas filtration and collection mechanism to rotate, causing the filter cover to undergo centrifugal motion. This disperses the oil and gas adhering to the surface of the filter cover to the inner wall of the oil mist box. By driving the negative pressure pump to deliver negative pressure to the oil suction pipe, the oil and gas scattered inside the oil mist box can be collected, thus preventing the filter cover from becoming clogged after long-term use.
[0015] 2. The technical solution of this application has scrapers fixedly installed at the other end of two sets of mounting brackets, and the scrapers are in close contact with the inner wall of the oil mist box. When the operator drives the motor to make the filter cover rotate with the docking rod, the scrapers installed on the side wall of the filter cover can clean the oil and gas splashed on the inner wall of the oil mist box. As the scrapers continue to rotate with the filter cover, the scrapers will concentrate the cleaned oil and gas at the oil suction pipe port and absorb the cleaned oil and gas, further improving the oil and gas collection efficiency. Attached Figure Description
[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0017] Figure 1 This is a schematic diagram of the overall structure of a marine oil mist box oil-gas filtration device according to the present invention.
[0018] Figure 2 This is a schematic diagram of the filter cover structure of a marine oil mist box oil-gas filtration device according to the present invention;
[0019] Figure 3 This is a schematic diagram of the internal structure of the oil mist box of the marine oil mist box oil and gas filtration device of this utility model.
[0020] In the diagram: 1. Oil mist box; 11. Threaded groove; 12. Exhaust pipe; 2. Connecting rod; 21. Gear ring; 22. Gear; 23. Connecting ring; 24. Bearing; 25. Filter cover; 26. Connecting cover; 3. Motor; 31. Oil suction pipe; 32. Mounting bracket; 33. Scraper. Detailed Implementation
[0021] Please see Figure 1-3 This utility model provides a technical solution: a marine oil mist box oil and gas filtration device, including an oil mist box 1, a threaded groove 11 is provided at the bottom port of the oil mist box 1, an exhaust pipe 12 is connected and installed on one side of the top of the oil mist box 1, and an oil and gas filtration and collection mechanism is installed inside the oil mist box 1.
[0022] The oil and gas filtration and collection mechanism includes a docking rod 2 rotatably mounted on the top of the inner wall of the oil mist box 1, a toothed ring 21 fixedly mounted on the side wall of the docking rod 2, a gear 22 meshing with the toothed ring 21, a connecting ring 23 mounted on the bottom of the oil mist box 1, a bearing 24 fixedly mounted on the inner wall of the connecting ring 23, and a filter cover 25 fixedly mounted on the inner shaft of the bearing 24. The outer wall of the connecting ring 23 is provided with external threads, and the connecting ring 23 is threadedly connected to the threaded groove 11.
[0023] In this technical solution, the drive motor 3 drives the gear 22 to rotate, and the gear ring 21 that meshes with the gear 22 drives the docking rod 2 to rotate. Since the bottom of the docking rod 2 fits into the hexagonal slot inside the docking cover 26, it can synchronously drive the filter cover 25 inside the oil and gas filtration and collection mechanism to rotate, so that the filter cover 25 performs centrifugal motion, dispersing the oil and gas attached to the surface of the filter cover 25 to the inner wall of the oil mist box 1. The drive negative pressure pump delivers negative pressure to the oil suction pipe 31, which can collect the oil and gas scattered inside the oil mist box 1, avoiding the filter cover 25 from becoming clogged after long-term use.
[0024] In some technical solutions, mounting brackets 32 are fixedly installed at both ends of the side wall of the filter cover 25, and scrapers 33 are fixedly installed at the other end of the two sets of mounting brackets 32. The scrapers 33 are in contact with the inner wall of the oil mist box 1, which can clean the inner wall of the oil mist box 1.
[0025] In this technical solution, when the operator drives the motor 3 to make the filter cover 25 rotate with the docking rod 2, the scraper 33 installed on the side wall of the filter cover 25 can clean the oil and gas splashed on the inner wall of the oil mist box 1. As the scraper 33 continues to rotate with the filter cover 25, the scraper 33 will concentrate the cleaned oil and gas at the port of the oil suction pipe 31 and absorb the cleaned oil and gas, further improving the oil and gas collection efficiency.
[0026] In some technical solutions, an oil suction pipe 31 is installed on the side wall of the oil mist box 1, and the other end of the oil suction pipe 31 is connected to the negative pressure end of the negative pressure pump, so that negative pressure can be delivered to the oil suction pipe 31.
[0027] In this technical solution, when the driving negative pressure pump delivers negative pressure to the oil suction pipe 31, the oil vapor scattered inside the oil mist box 1 can be collected, thus preventing the filter cover 25 from becoming clogged after long-term use.
[0028] In some technical solutions, a motor 3 is fixedly installed on one side of the top of the oil mist box 1. The output end of the motor 3 is connected to the transmission shaft, and the other end of the transmission shaft is fixedly installed on the central shaft of the gear 22, which can drive the gear 22 to rotate. A docking cover 26 is fixedly installed on the top of the filter cover 25. A hexagonal slot is opened on the inner wall of the docking cover 26. The hexagonal slot and the docking rod 2 fit together and can drive the filter cover 25 to rotate synchronously.
[0029] In this technical solution, when the drive motor 3 drives the gear 22 to rotate, the gear ring 21 that meshes with the gear 22 will drive the docking rod 2 to rotate. Since the bottom of the docking rod 2 fits into the hexagonal slot inside the docking cover 26, it can synchronously drive the filter cover 25 inside the oil and gas filtration and collection mechanism to rotate, so that the filter cover 25 performs centrifugal motion.
[0030] When using a marine oil mist box oil-gas filtration device, it should be noted that this utility model is a marine oil mist box oil-gas filtration device, and all components are general standard parts or parts known to those skilled in the art. Its structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0031] In use, the filter cover 25 is first installed inside the oil mist box 1 by threading the connecting ring 23 to the threaded groove 11 on the inner wall of the oil mist box 1. The filter cover 25, with its filtration characteristics, can filter oil and gas, effectively reducing oil and gas emissions. Simultaneously, the drive motor 3 drives the gear 22 to rotate, and the gear ring 21, meshing with the gear 22, drives the docking rod 2 to rotate. Since the bottom of the docking rod 2 engages with the hexagonal slot inside the docking cover 26, it synchronously drives the filter cover 25 inside the oil and gas filtration and collection mechanism to rotate, causing the filter cover 25 to undergo centrifugal motion. This disperses the oil and gas adhering to the surface of the filter cover 25 onto the inner wall of the oil mist box 1. The negative pressure pump then drives the oil suction pipe 31... The negative pressure conveyed can collect the oil and gas scattered inside the oil mist box 1, preventing the filter cover 25 from becoming clogged after prolonged use. At the same time, scrapers 33 are fixedly installed at the other end of the two sets of mounting brackets 32, and the scrapers 33 are in close contact with the inner wall of the oil mist box 1. When the operator drives the motor 3 to make the filter cover 25 rotate with the docking rod 2, the scrapers 33 installed on the side wall of the filter cover 25 can clean the oil and gas splashed on the inner wall of the oil mist box 1. As the scrapers 33 continue to rotate with the filter cover 25, the scrapers 33 will concentrate the cleaned oil and gas at the port of the oil suction pipe 31, and absorb the cleaned oil and gas, further improving the oil and gas collection efficiency.
Claims
1. A marine oil mist chamber oil vapor filtration device, comprising an oil mist chamber (1), characterized in that: The bottom port of the oil mist box (1) is provided with a threaded groove (11), and an exhaust pipe (12) is connected to one side of the top of the oil mist box (1). An oil and gas filtration and collection mechanism is installed inside the oil mist box (1). The oil and gas filtration and collection mechanism includes a docking rod (2) rotatably mounted on the top of the inner wall of the oil mist box (1), a toothed ring (21) fixedly mounted on the side wall of the docking rod (2), a gear (22) meshing with the toothed ring (21), a connecting ring (23) mounted on the bottom of the oil mist box (1), a bearing (24) fixedly mounted on the inner wall of the connecting ring (23), and a filter cover (25) fixedly mounted on the inner shaft of the bearing (24).
2. The marine oil mist chamber oil vapor filtration device according to claim 1, characterized in that: The outer wall of the connecting ring (23) is provided with an external thread, and the connecting ring (23) is threadedly connected to the threaded groove (11).
3. The marine oil mist chamber oil vapor filtration device according to claim 1, characterized in that: The filter cover (25) is fixedly installed with a docking cover (26) on the top. The inner wall of the docking cover (26) is provided with a hexagonal slot, which fits into the docking rod (2).
4. The marine oil mist chamber oil vapor filtration device according to claim 1, characterized in that: A motor (3) is fixedly installed on one side of the top of the oil mist box (1). The output end of the motor (3) is connected to the transmission shaft, and the other end of the transmission shaft is fixedly installed on the central shaft of the gear (22).
5. The marine oil mist chamber oil vapor filtration device according to claim 1, characterized in that: The oil mist box (1) is connected to the side wall of the oil suction pipe (31), and the other end of the oil suction pipe (31) is connected to the negative pressure end of the negative pressure pump.
6. The marine oil mist chamber oil vapor filtration device according to claim 1, characterized in that: The filter cover (25) has mounting brackets (32) fixedly installed at both ends of its side wall, and scrapers (33) are fixedly installed at the other end of the two sets of mounting brackets (32). The scrapers (33) are in contact with the inner wall of the oil mist box (1).