Natural gas filtering and purifying device with self-cleaning structure

CN122979014APending Publication Date: 2026-10-27DAMO PETROLEUM ENGINEERING TECHNOLOGY (TIANJIN) CO LTD
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Patent Information

Application Number
CN202611076603.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-07-20
Publication Date
2026-10-27

AI Technical Summary

Technical Problem

[0002]天然气开采或输送过程中混有固体杂质、凝析液等杂物,在输送过程中要对杂物进行过滤拦截,传统过滤装置依靠滤芯拦截杂质,长期使用后杂质堆积在滤芯表面,会增大过滤压降、降低过滤效率,需要频繁停机拆卸更换或清洗滤芯,影响天然气输送连续性,提升了运维成本;

Benefits of technology

[0005]与现有技术相比,本发明的有益效果是:通过天然气对导向叶进行工作,让转轴带动清洁刷进行工作与过滤网接触进行清洁,且在转轴转动时,带动触发齿轮与联动齿轮和传动齿轮转动,让触发件进行圆周运动,在运动时与移动齿轮接触人,让其转动一格,然后与调节齿轮啮合,让螺纹杆转动,使螺纹块和触发块移动,完成传动比,最后触发块在穿过夹持抵板后对夹持板进行接触挤压,最终完成与过滤盘的脱离,从而对过滤网进行收纳回收至收纳箱内部,同时安装箱内部进行新的过滤网安装,完成无接触工作,增大工作效率,且避免人工的安装危害。

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Abstract

The application discloses a natural gas filtering and purifying device with a self-cleaning structure, which comprises a filter cylinder, an air inlet channel, a filtering mechanism, a cleaning mechanism and a triggering mechanism, the outer side of the filter cylinder is fixedly connected with the air inlet channel, and the inside of the filter cylinder is provided with the filtering mechanism; the guiding blade is worked by natural gas, the rotating shaft drives the cleaning brush to work and contact the filter screen for cleaning, when the rotating shaft rotates, the triggering gear, the linkage gear and the transmission gear are driven to rotate, the triggering piece performs circular motion, contacts the moving gear during the motion, and drives the moving gear to rotate by one step, then the triggering piece is engaged with the adjusting gear, the threaded rod is rotated, the threaded block and the triggering block are moved, the transmission ratio is completed, finally the triggering block contacts and extrudes the clamping plate after passing through the clamping plate, and the clamping plate is finally separated from the filter disc, so that the filter screen is stored and recycled into the storage box, meanwhile, a new filter screen is installed in the installation box, contactless work is completed, work efficiency is improved, and manual installation hazards are avoided.
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Description

Technical Field

[0001] This invention relates to the field of natural gas equipment technology, specifically to a natural gas filtration and purification device with a self-cleaning structure. Background Technology

[0002] During the extraction or transportation of natural gas, there are solid impurities, condensate and other impurities mixed in. During transportation, these impurities need to be filtered and intercepted. Traditional filtration devices rely on filter elements to intercept impurities. After long-term use, impurities accumulate on the surface of the filter element, which increases the filtration pressure drop and reduces the filtration efficiency. Frequent shutdowns are required to disassemble, replace or clean the filter element, which affects the continuity of natural gas transportation and increases operation and maintenance costs. Existing filtration devices mostly consist of a filter screen and a cleaning brush. The filter screen intercepts debris, and the cleaning brush pushes and cleans the filter screen. However, they need to be replaced regularly. When replacing them, the supply of natural gas needs to be interrupted, which reduces work efficiency and increases work hazards. If the filter screen is replaced without stopping the supply of natural gas, the natural gas cannot be filtered during the replacement period, and the natural gas comes into direct contact with people, which also poses a potential risk. Therefore, there is a need for a purification device that can automatically clean the filter device without interrupting normal use. Summary of the Invention

[0003] The purpose of this invention is to provide a natural gas filtration and purification device with a self-cleaning structure to solve the problems mentioned in the background art.

[0004] By adopting the above technical solution, the cleaning brush can contact the filter screen for cleaning, ensuring filtration efficiency. After several cleaning and wiping cycles, the filter screen can be automatically detached and replaced, ensuring continuous cleaning efficiency and reducing manual labor costs.

[0005] Compared with the prior art, the beneficial effects of the present invention are as follows: Natural gas powers the guide vane, causing the rotating shaft to drive the cleaning brush to clean the filter screen. As the shaft rotates, it drives the trigger gear, linkage gear, and transmission gear to rotate, causing the trigger element to move in a circular motion. During this motion, it contacts the moving gear, causing it to rotate one notch. Then, it meshes with the adjusting gear, causing the threaded rod to rotate, which in turn moves the threaded block and the trigger block, completing the transmission ratio. Finally, after passing through the clamping plate, the trigger block contacts and presses against the clamping plate, ultimately separating it from the filter disc. This allows the filter screen to be collected and recycled into the storage box. Simultaneously, a new filter screen is installed inside the installation box, completing a contactless operation, increasing work efficiency, and avoiding the hazards of manual installation. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the main cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the filter cylinder in this invention; Figure 4 This is a schematic diagram of the triggering mechanism of the present invention; Figure 5 This is a schematic diagram of the clamping mechanism in this invention.

[0007] In the diagram: 1. Filter cartridge; 2. Air intake channel; 3. Filtering mechanism; 301. Filter disc; 302. Filter screen; 4. Cleaning mechanism; 401. Rotating shaft; 402. Guide vane; 403. Cleaning brush; 404. Storage box; 405. Connecting hole; 5. Triggering mechanism; 501. Triggering gear; 502. Linkage gear; 503. Transmission gear; 504. Triggering element; 505. Adjusting gear; 506. Moving gear; 507. Threaded rod; 508. Slider; 509. Triggering block; 6. Clamping mechanism; 601. Clamping plate; 602. Spring; 603. Clamping plate; 7. Mounting box. Detailed Implementation

[0008] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0009] Please see Figure 1-5 This invention provides a technical solution: a natural gas filtration and purification device with a self-cleaning structure, comprising: a filter cylinder 1, an air inlet channel 2, a filtration mechanism 3, a cleaning mechanism 4, and a triggering mechanism 5. The air inlet channel 2 is fixedly connected to the outside of the filter cylinder 1. The filtration mechanism 3 is located inside the filter cylinder 1, and includes a filter disc 301 and a filter screen 302. The cleaning mechanism 4 is located inside the filter cylinder 1 on one side of the filtration mechanism 3, and includes a rotating shaft 401, a guide vane 402, a cleaning brush 403, and a storage box 404. A triggering mechanism 5 is also provided inside the filter cylinder 1. The triggering mechanism 5 includes a trigger gear 501, a linkage gear 502, a transmission gear 503, a trigger element 504, an adjusting gear 505, a moving gear 506, a threaded rod 507, a slider 508, and a trigger block 509. Natural gas is filtered by the filter mechanism 3 inside the filter cylinder 1. After the natural gas enters from the air inlet channel 2, it blows the guide vane 402, causing it to drive the rotating shaft 401 to rotate. This allows the cleaning brush 403 to contact and clean the filter screen 302, completing the daily filtration work. During rotation, the triggering mechanism 5 is activated.

[0010] The filter cartridge 1 is rotatably connected to a rotating shaft 401. A guide vane 402 is fixedly connected to the outer wall of the rotating shaft 401. A cleaning brush 403 is fixedly connected to one end of the rotating shaft 401. A connecting hole 405 is opened at the bottom of the outer wall of the filter cartridge 1. A storage box 404 is fixedly connected to the outer wall of the filter cartridge 1. The connecting hole 405 communicates with the storage box 404. A filter disc 301 is provided inside the filter cartridge 1 above the connecting hole 405. A filter screen 302 is provided inside the filter disc 301. The filter screen 302 is in contact with the cleaning brush 403. The guide vane 402 is an angled blade to increase rotation efficiency and ensure cleaning efficiency and power. The connecting hole 405 can communicate with the storage box 404 to facilitate the later recycling of the filter screen 302. A trigger gear 501 is fixedly connected to the outer wall of the rotating shaft 401. A transmission gear 503 is rotatably connected inside the filter cylinder 1. A linkage gear 502 is rotatably connected to the inner side of the filter cylinder 1. The linkage gear 502 is meshed with both the trigger gear 501 and the transmission gear 503. A trigger element 504 is fixedly connected to the side of the transmission gear 503 near the filter screen 302. A threaded rod 507 is rotatably connected inside the filter cylinder 1. A slider 508 is threadedly connected to the outer side of the threaded rod 507. The slider 508 is slidably connected to the filter cylinder 1. An adjusting gear 505 is fixedly connected to the outer wall of the threaded rod 507. The inner side of the slider 508 is rotatably connected to a movable gear 506, which meshes with the adjusting gear 505. The movable gear 506 is adapted to the trigger 504. The outer side of the slider 508 is fixedly connected to a trigger block 509. The trigger gear 501, the transmission gear 503, and the linkage gear 502 mesh together to complete the transmission ratio adjustment. Then, the trigger 504 is rotated. After rotating one revolution, it meshes with the movable gear 506 to complete one rotation, thereby completing the transmission ratio again. Finally, the adjusting gear 505 is rotated, and the threaded rod 507 is moved under the limit condition to form a proportional movement and complete the final triggering work. A clamping mechanism 6 is fixed to the inner wall of the filter cylinder 1. The clamping mechanism 6 includes a clamping abutment 601, a spring 602, and a clamping plate 603. The clamping abutment 601 is fixedly connected to the inner side of the filter cylinder 1, and the clamping plate 603 is rotatably connected to the inner side of the filter cylinder 1. A spring 602 is fixedly connected between the clamping plate 603 and the clamping abutment 601. A trigger block 509 is adapted to the clamping abutment 601. When the trigger block 509 moves to the end of the threaded rod 507, the transmission clamping mechanism is activated. After the holding plate 601 and spring 602 are in contact and pressed with the clamping plate 603, the spring 602 is stretched and the clamping plate 603 is rotated, disengaging from the filter disc 301 and completing the relaxation. The filter disc 301 automatically falls into the storage box 404. Then, a motor reset device is provided at one end of the threaded rod 507 to reset the trigger block 509. The spring 602 is a tension spring, which resets the clamping plate 603 again to clamp the new filter disc 301.

[0011] An installation box 7 is fixedly connected to the upper end of the outer wall of the filter cartridge 1. When it is detached, a new filter mechanism 3 is automatically installed to complete uninterrupted operation.

Claims

1. A natural gas filtration and purification device with a self-cleaning structure, characterized in that: include: The filter cylinder (1), air intake channel (2), filter mechanism (3), cleaning mechanism (4) and triggering mechanism (5) are provided. The air intake channel (2) is fixedly connected to the outside of the filter cylinder (1). The filter mechanism (3) is provided inside the filter cylinder (1). The filter mechanism (3) includes a filter disc (301) and a filter screen (302). The cleaning mechanism (4) is provided inside the filter cylinder (1) on one side of the filter mechanism (3). The cleaning mechanism (4) includes a rotating shaft (401), a guide vane (402), a cleaning brush (403) and a storage box (404). The triggering mechanism (5) is provided inside the filter cylinder (1). The triggering mechanism (5) includes a triggering gear (501), a linkage gear (502), a transmission gear (503), a trigger element (504), an adjusting gear (505), a moving gear (506), a threaded rod (507), a slider (508) and a trigger block (509).

2. The natural gas filtration and purification device with a self-cleaning structure according to claim 1, characterized in that: The filter cylinder (1) is rotatably connected to a rotating shaft (401). A guide vane (402) is fixedly connected to the outer wall of the rotating shaft (401). A cleaning brush (403) is fixedly connected to one end of the rotating shaft (401). A connecting hole (405) is opened at the bottom of the outer wall of the filter cylinder (1). A storage box (404) is fixedly connected to the outer wall of the filter cylinder (1). The connecting hole (405) is connected to the storage box (404). A filter plate (301) is provided inside the filter cylinder (1) above the connecting hole (405). A filter screen (202) is provided inside the filter plate (301). The filter screen (202) is in contact with the cleaning brush (403).

3. A natural gas filtration and purification device with a self-cleaning structure according to claim 1, characterized in that: A trigger gear (501) is fixedly connected to the outer wall of the rotating shaft (401). A transmission gear (503) is rotatably connected inside the filter cylinder (1). A linkage gear (502) is rotatably connected to the inner side of the filter cylinder (1). The linkage gear (502) is meshed with both the trigger gear (501) and the transmission gear (503). A trigger element (504) is fixedly connected to the side of the transmission gear (503) near the filter screen (302). A threaded rod is rotatably connected inside the filter cylinder (1). (507), a slider (508) is threadedly connected to the outer side of the threaded rod (507), the slider (508) is slidably connected to the filter cylinder (1), an adjusting gear (505) is fixedly connected to the outer side of the threaded rod (507), a moving gear (506) is rotatably connected to the inner side of the filter cylinder (1), the moving gear (506) is meshed with the adjusting gear (505), the moving gear (506) is adapted to the trigger (504), and a trigger block (509) is fixedly connected to the outer side of the slider (508).

4. A natural gas filtration and purification device with a self-cleaning structure according to claim 1, characterized in that: The inner wall of the filter cylinder (1) is fixed with a clamping mechanism (6). The clamping mechanism (6) includes a clamping plate (601), a spring (602) and a clamping plate (603). The inner side of the filter cylinder (1) is fixedly connected to the clamping plate (601), and the inner side of the filter cylinder (1) is rotatably connected to the clamping plate (603). The spring (602) is fixedly connected between the clamping plate (603) and the clamping plate (601). The trigger block (509) is adapted to the clamping plate (601).

5. A natural gas filtration and purification device with a self-cleaning structure according to claim 1, characterized in that: The upper end of the outer wall of the filter cartridge (1) is fixedly connected to the mounting box (7).

6. A natural gas filtration and purification device with a self-cleaning structure according to claim 1, characterized in that: The spring (602) is a tension reset member, and the clamping plate (603) is adapted to the filter disc (301).