Natural gas pipeline cleaner

Abstract

The utility model relates to the technical field of pipeline cleaning, in particular to a natural gas pipeline cleaner. The pipe cleaner comprises a first pipe cleaner body, a second pipe cleaner body and a rotating disc, telescopic mechanisms are assembled in the first pipe cleaner body and the second pipe cleaner body, a cleaning mechanism is assembled between the first pipe cleaner body and the rotating disc, and a flexible connecting mechanism is assembled between the first pipe cleaner body and the second pipe cleaner body; by means of the structural design of the telescopic mechanism, a first motor is started to rotate, three threaded sleeves slide to achieve movement of three moving wheels, and adaptive adjustment of natural gas pipelines with different diameters is achieved; and through the structural design of the cleaning mechanism, a third motor is started to rotate, a gear disc drives three racks to move, and a mounting plate drives a scraper and a cleaning brush to clean the inner wall of the natural gas pipeline.

Description

Technical Field

[0001] This utility model relates to the field of pipeline cleaning technology, and in particular to a natural gas pipeline cleaning device. Background Technology

[0002] Natural gas pipeline pigs are crucial equipment for ensuring the efficient and safe operation of natural gas pipelines. During long-distance pipeline transportation, natural gas accumulates impurities on the inner walls of the pipeline, such as rust, dust, water, and heavy components. Pipeline pigs were developed to address these issues. A pipeline pig is typically a cylindrical device with a wear-resistant surface, and some are equipped with brushes and scrapers. As the pig moves along the pipeline, these components scrape and sweep up impurities from the inner walls, propelling them forward until they are expelled. The application of pipeline pigs offers numerous benefits. First, it ensures unobstructed natural gas pipeline flow, reducing the risk of blockages caused by impurity buildup. Second, it helps maintain natural gas quality, preventing impurities from contaminating the gas and affecting its combustion performance. Furthermore, regular pipeline cleaning with pigs reduces corrosion of the pipeline walls, extends pipeline lifespan, and ensures the long-term stable operation of the natural gas transportation system.

[0003] For example, patent CN218555057U discloses a natural gas pipeline cleaning device, which includes a cleaning device body, two arc-shaped scrapers, a cleaning size adjustment mechanism, a first drive motor, a rotating shaft, a rotating brush mechanism, and a rolling support mechanism. Multiple sets of cleaning brushes are evenly spaced and fitted onto each arc-shaped scraper. The cleaning size adjustment mechanism includes a rotating screw, a second drive motor, two threaded connecting blocks threaded to both ends of the rotating screw, four connecting rods hinged to the top and bottom ends of the two threaded connecting blocks, and two connecting plates. The rotating screw has two sets of threaded groups with opposite thread directions at both ends. The four connecting rods are hinged to the two connecting plates in pairs. The arc-shaped scrapers are fixedly connected to the adjacent connecting plates via lifting columns. The cleaning device body has lifting holes, allowing the lifting columns to move vertically within the lifting holes. This invention enables the cleaning brushes to fit tightly against the inner wall of the natural gas pipeline, improving the cleaning effect on the pipeline's inner wall.

[0004] When using the above technology, the following technical problems were found in the existing technology: the existing natural gas pipeline pig is not convenient to move in the pipeline, which affects the cleaning efficiency. In addition, the existing natural gas pipeline pig is not convenient to move in the bends of the pipeline. Therefore, there is room for improvement. To this end, we designed a natural gas pipeline pig to provide another technical solution to the above technical problems. Utility Model Content

[0005] Therefore, it is necessary to provide a natural gas pipeline cleaning tool to address the aforementioned technical problems, thereby solving the technical issues of convenient mobility for cleaning and flexible turning.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A natural gas pipeline cleaning device includes a first cleaning device body, a second cleaning device body, and a rotating disk. The second cleaning device body is mounted at one end of the first cleaning device body, and the rotating disk is mounted at the other end of the first cleaning device body. Both the first cleaning device body and the second cleaning device body are equipped with telescopic mechanisms. A cleaning mechanism is mounted between the first cleaning device body and the rotating disk. A flexible connection mechanism is mounted between the first cleaning device body and the second cleaning device body.

[0008] The telescopic mechanism includes a first motor, a driving bevel gear, a driven bevel gear, a threaded screw, a threaded sleeve, a mounting base, guide rods, a second motor, a driving helical gear, a driven helical gear, and a moving wheel. The first motor is fixed inside both the first and second pig bodies. A driving bevel gear is fixed to the power output end of the first motor. Three driven bevel gears are externally meshed with the driving bevel gear. A threaded screw is fixed to one side of each driven bevel gear. A threaded sleeve is externally threaded to the threaded screw. A mounting base is fixed to one end of the threaded sleeve. Two guide rods are fixed to one side of the mounting base. Multiple guide rods are slidably connected to both the first and second pig bodies. A second motor is fixed to the top of the mounting base. A driving helical gear is fixed to the power output end of the second motor. A driven helical gear is externally meshed with the driving helical gear. A moving wheel is fixed to the bottom of the driven helical gear. The moving wheel is rotatably connected to the mounting base.

[0009] Preferably, the cleaning mechanism includes a third motor, a gear disk, a rack, a guide plate, a moving rod, a mounting plate, a scraper, and a cleaning brush. The third motor is fixed inside the rotating disk, and the gear disk is fixed to the power output end of the third motor. Three racks are meshed with the outside of the gear disk. A guide plate is fixed to one side of each rack. Multiple guide plates are slidably connected to the rotating disk. A moving rod is fixed to one end of each rack. A mounting plate is fitted to one end of each moving rod. A scraper is fixed to one end of one side of the mounting plate, and a cleaning brush is fixed to the other end of one side of the mounting plate.

[0010] Preferably, the flexible connection mechanism includes a universal coupling, a limiting head, and a second spring. The first pig body and the second pig body are connected by the universal coupling. Multiple limiting heads are evenly distributed and fixed at one end of the first pig body and the second pig body that are close to each other. A second spring is sleeved on the outside of the two limiting heads.

[0011] Preferably, a buffer rod is slidably connected inside the movable rod, and a first spring is slidably connected inside the movable rod and at one end of the buffer rod, and one end of the buffer rod is fixed to the mounting plate.

[0012] Preferably, a protective cover is fixed on one side of the mounting base, outside the second motor, the driving helical gear, and the driven helical gear.

[0013] Preferably, a hanging ring is fixed to one end of the second pig body.

[0014] Preferably, a fourth motor is fixed to one end of the first pig body, and the power output end of the fourth motor is fixed to the rotating disk.

[0015] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0016] At the same time, through the above technical solutions, this utility model has at least the following beneficial effects:

[0017] 1. Through the structural design of the telescopic mechanism, this utility model enables the device to move three moving wheels by starting the first motor and causing the three threaded sleeves to slide, thereby achieving adaptive adjustment to natural gas pipelines of different diameters and improving the flexibility of the device.

[0018] 2. Through the structural design of the cleaning mechanism, this utility model enables the device to start the third motor to rotate, which causes the gear disk to drive the three racks to move, so that the mounting plate drives the scraper and cleaning brush to clean the inner wall of the natural gas pipeline.

[0019] 3. Through the structural design of the flexible connection mechanism, this utility model enables the device to achieve a flexible connection between the first pig body and the second pig body through a universal coupling, and to achieve auxiliary passage at the bends of the natural gas pipeline through the limiting head and the second spring. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional structural diagram of the body of the second pig of this utility model;

[0023] Figure 3 This utility model Figure 2 A partially enlarged structural diagram;

[0024] Figure 4 This is a cross-sectional structural diagram of the rotating disk of this utility model;

[0025] Figure 5 This is a schematic diagram of the connection structure of the first pig body, the second pig body, and the rotating disk of this utility model.

[0026] Figure 6 This is a schematic diagram of the connection structure of the movable rod, mounting plate, and buffer rod of this utility model.

[0027] In the diagram: 1. First pig body; 2. Second pig body; 3. Rotary disc; 4. First motor; 5. Driving bevel gear; 6. Driven bevel gear; 7. Threaded screw; 8. Threaded sleeve; 9. Mounting base; 10. Guide rod; 11. Second motor; 12. Driving helical gear; 13. Driven helical gear; 14. Moving wheel; 15. Third motor; 16. Gear disk; 17. Rack; 18. Guide plate; 19. Moving rod; 20. Mounting plate; 21. Scraper; 22. Cleaning brush; 23. First spring; 24. Buffer rod; 25. Universal coupling; 26. Limit head; 27. Second spring; 28. Protective cover; 29. ​​Hanging ring; 30. Fourth motor. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0030] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] Example 1

[0033] Reference Figure 1 - Figure 6 A natural gas pipeline cleaning device includes a first cleaning device body 1, a second cleaning device body 2, and a rotating disk 3. The second cleaning device body 2 is mounted at one end of the first cleaning device body 1, and the rotating disk 3 is mounted at the other end of the first cleaning device body 1. Both the first cleaning device body 1 and the second cleaning device body 2 are equipped with telescopic mechanisms. A cleaning mechanism is mounted between the first cleaning device body 1 and the rotating disk 3. A flexible connection mechanism is mounted between the first cleaning device body 1 and the second cleaning device body 2.

[0034] The telescopic mechanism includes a first motor 4, a driving bevel gear 5, a driven bevel gear 6, a threaded screw 7, a threaded sleeve 8, a mounting base 9, guide rods 10, a second motor 11, a driving helical gear 12, a driven helical gear 13, and a moving wheel 14. The first motor 4 is fixed inside both the first pig body 1 and the second pig body 2. The driving bevel gear 5 is fixed to the power output end of the first motor 4. Three driven bevel gears 6 are externally meshed with the driving bevel gear 5. A threaded screw 7 is fixed to one side of each driven bevel gear 6. A threaded sleeve 8 is threadedly connected to the external side of the threaded screw 7. A mounting base 9 is fixed to one end of the threaded sleeve 8. Two guide rods 10 are fixed to one side of the mounting base 9. All guide rods 10 are slidably connected to the first pig body 1 and the second pig body 2. The second motor 11 is fixed to the top of the mounting base 9. A driving helical gear 12 is fixed to the power output end of the second motor 11. A driven helical gear 13 is externally meshed with the driving helical gear 12. A moving wheel 14 is fixed to the bottom of the driven helical gear 13. The movable wheel 14 is rotatably connected to the mounting base 9. When the movable wheel 14 needs to be extended and retracted to adapt to the inner wall of natural gas pipelines of different diameters, the first motor 4 is started. The power output end of the first motor 4 drives the active bevel gear 5 to rotate. The active bevel gear 5 drives the driven bevel gear 6 that meshes with it to rotate. The driven bevel gear 6 drives the threaded screw 7 to rotate. The threaded screw 7 drives the threaded sleeve 8 to slide inside the first pig body 1 and the second pig body 2, and is guided by the guide rod 10. The movement of the threaded sleeve 8 drives the mounting base 9, and the mounting base 9 drives the movable wheel 14 to move. When the movable wheel 14 moves to fit against the inner wall of the natural gas pipeline, it stops. This allows for adaptive adjustment to natural gas pipelines of different diameters. By starting the second motor 11, the second motor 11 drives the active helical gear 12 to rotate. The active helical gear 12 drives the driven helical gear 13 to rotate. The driven helical gear 13 drives the movable wheel 14 to rotate, thus enabling the natural gas pipeline pig to move inside the natural gas pipeline.

[0035] The flexible connection mechanism includes a universal coupling 25, a limiting head 26, and a second spring 27. The first pig body 1 and the second pig body 2 are connected by the universal coupling 25. Multiple limiting heads 26 are evenly distributed and fixed at the ends of the first pig body 1 and the second pig body 2 that are close to each other. A second spring 27 is sleeved on the outside of the two limiting heads 26. When the telescopic mechanism and the cleaning mechanism are deployed and cleaning is performed, when they move forward and encounter a bend in the pipeline, the flexible connection mechanism can enable the natural gas pipeline pig to bend forward through the cooperation of the universal coupling 25, the limiting head 26, and the second spring 27, so that it can pass smoothly through the bend in the natural gas pipeline and achieve continuous cleaning operations.

[0036] A protective cover 28 is fixed on one side of the mounting base 9 and outside the second motor 11, the driving helical gear 12 and the driven helical gear 13. The protective cover 28 protects the moving parts of the second motor 11, the driving helical gear 12 and the driven helical gear 13, and prevents foreign objects from entering the gear meshing point and affecting the rotation, thereby affecting the continuous cleaning of the natural gas pipeline pig. It can achieve efficient protection and make the natural gas pipeline pig have a long service life.

[0037] The second pigging device body 2 has a hanging ring 29 fixed at one end; the hanging ring 29 makes it easy for staff to pull out and repair the natural gas pipeline pigging device by pulling rope when it fails to operate on its own.

[0038] Example 2

[0039] Reference Figure 4 A natural gas pipeline cleaning device includes a cleaning mechanism comprising a third motor 15, a gear disk 16, a rack 17, a guide plate 18, a moving rod 19, a mounting plate 20, a scraper 21, and a cleaning brush 22. The third motor 15 is fixed inside the rotating disk 3. The gear disk 16 is fixed to the power output end of the third motor 15. Three racks 17 are meshed with the outside of the gear disk 16. A guide plate 18 is fixed to one side of each rack 17, and all guide plates 18 are slidably connected to the rotating disk 3. A moving rod 19 is fixed to one end of each rack 17, and a mounting plate 20 is fitted to one end of the moving rod 19. A scraper 21 is fixed to one end of one side of the mounting plate 20, and a cleaning brush 22 is fixed to the other end of the mounting plate 20. A buffer rod 24 is slidably connected inside the moving rod 19. A first spring 23 is slidably connected inside the moving rod 19 and to one end of the buffer rod 24. One end of the buffer rod 24 is connected to the mounting plate 20. Mounting plate 20 is fixed; a fourth motor 30 is fixed at one end of the first pig body 1, and the power output end of the fourth motor 30 is fixed to the rotating disk 3; when the inner wall of the natural gas pipeline is to be cleaned, the third motor 15 is started, the power output end of the third motor 15 drives the gear disk 16 to rotate, the gear disk 16 drives the three racks 17 to move, the racks 17 drive the moving rod 19 to slide inside the rotating disk 3, and the sliding is limited and guided by the guide plate 18. The moving rod 19 drives the first spring 23 and the buffer rod 24 to move, the buffer rod 24 drives the mounting plate 20 to move, and the mounting plate 20 drives the scraper 21 and the cleaning brush 22 to move slowly towards the inner wall of the natural gas pipeline, thus realizing the extension of the cleaning mechanism, and then starting the fourth motor 30, the fourth motor 30 drives the rotating disk 3 and the internal cleaning mechanism to rotate, thus realizing the cleaning of the inner wall of the natural gas pipeline;

[0040] The usage process of the natural gas pipeline cleaning tool provided by this utility model is as follows:

[0041] When the movable wheel 14 needs to be extended and retracted to adapt to the inner wall of natural gas pipelines of different diameters, since the first pig body 1 and the second pig body 2 are both fixed with a first motor 4, the power output end of the first motor 4 is fixed with a driving bevel gear 5, the external meshing connection of the driving bevel gear 5 is three driven bevel gears 6, a threaded screw 7 is fixed to one side of the driven bevel gear 6, the external thread of the threaded screw 7 is threadedly connected to a threaded sleeve 8, one end of the threaded sleeve 8 is fixed with a mounting base 9, two guide rods 10 are fixed to one side of the mounting base 9, and the multiple guide rods 10 are slidably connected to the first pig body 1 and the second pig body 2, the top of the mounting base 9 is fixed with a second motor 11, the power output end of the second motor 11 is fixed with a driving helical gear 12, the external meshing connection of the driving helical gear 12 is a driven helical gear 13, the bottom of the driven helical gear 13 is fixed with a movable wheel 14, and the movable wheel 14 and Mounting base 9 is rotatably connected; then the first motor 4 is started, the power output end of the first motor 4 drives the active bevel gear 5 to rotate, the active bevel gear 5 drives the driven bevel gear 6 to rotate, the driven bevel gear 6 drives the threaded screw 7 to rotate, the threaded screw 7 drives the threaded sleeve 8 to slide inside the first pig body 1 and the second pig body 2, and is guided by the guide rod 10. The movement of the threaded sleeve 8 drives the mounting base 9, the mounting base 9 drives the moving wheel 14 to move, and stops when the moving wheel 14 moves to fit against the inner wall of the natural gas pipeline. In this way, adaptive adjustment can be achieved for natural gas pipelines of different diameters. By starting the second motor 11, the second motor 11 drives the active helical gear 12 to rotate, the active helical gear 12 drives the driven helical gear 13 to rotate, the driven helical gear 13 drives the moving wheel 14 to rotate, so that the natural gas pipeline pig can move inside the natural gas pipeline.

[0042] When cleaning the inner wall of a natural gas pipeline, a third motor 15 is fixed inside the rotating disk 3. A gear disk 16 is fixed to the power output end of the third motor 15. Three racks 17 are meshed with the outside of the gear disk 16. A guide plate 18 is fixed to one side of each rack 17. Multiple guide plates 18 are slidably connected to the rotating disk 3. A moving rod 19 is fixed to one end of each rack 17. A mounting plate 20 is fitted to one end of the moving rod 19. A scraper 21 is fixed to one end of one side of the mounting plate 20, and a cleaning brush 22 is fixed to the other end of one side of the mounting plate 20. A buffer rod 24 is slidably connected inside the moving rod 19. A first spring 23 is slidably connected inside the moving rod 19 and to one end of the buffer rod 24. One end of the buffer rod 24 is fixed to the mounting plate 20. The first pig body 1... A fourth motor 30 is fixed at one end, and the power output end of the fourth motor 30 is fixed to the rotating disk 3. Then, the third motor 15 is started, and the power output end of the third motor 15 drives the gear disk 16 to rotate. The gear disk 16 drives the three racks 17 to move. The racks 17 drive the moving rod 19 to slide inside the rotating disk 3. When sliding, it is limited and guided by the guide plate 18. The moving rod 19 drives the first spring 23 and the buffer rod 24 to move. The buffer rod 24 drives the mounting plate 20 to move. The mounting plate 20 drives the scraper 21 and the cleaning brush 22 to move slowly towards the inner wall of the natural gas pipeline, thus realizing the extension of the cleaning mechanism. Then, the fourth motor 30 is started, and the fourth motor 30 drives the rotating disk 3 and the internal cleaning mechanism to rotate, thus realizing the cleaning of the inner wall of the natural gas pipeline.

[0043] When the telescopic mechanism and cleaning mechanism are deployed and cleaning, and the pipeline moves forward to a bend, the flexible connection mechanism allows the natural gas pipeline pig to bend forward. The flexible connection mechanism includes a universal coupling 25, a limiting head 26, and a second spring 27. The first pig body 1 and the second pig body 2 are connected by the universal coupling 25. Multiple limiting heads 26 are evenly distributed and fixed at the ends of the first pig body 1 and the second pig body 2 that are close to each other. A second spring 27 is sleeved on the outside of each limiting head 26. When the telescopic mechanism and cleaning mechanism are deployed and cleaning, and the pipeline moves forward to a bend, the flexible connection mechanism, through the cooperation of the universal coupling 25, the limiting head 26, and the second spring 27, allows the natural gas pipeline pig to bend forward, smoothly passing through the bend in the natural gas pipeline and achieving continuous cleaning operations.

[0044] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A natural gas pipeline pig, comprising: The utility model provides a cleaning device for pipeline, including first pig body (1), second pig body (2) and rotary disc (3), one end of first pig body (1) is equipped with second pig body (2), the other end of first pig body (1) is equipped with rotary disc (3), the inside of first pig body (1) and second pig body (2) is equipped with telescopic mechanism, and the between first pig body (1) and rotary disc (3) is equipped with cleaning mechanism, and the between first pig body (1) and second pig body (2) is equipped with flexible connecting mechanism, The telescopic mechanism includes first motor (4), driving bevel gear (5), driven bevel gear (6), threaded lead screw (7), threaded sleeve (8), mounting seat (9), guide rod (10), second motor (11), driving bevel gear (12), driven bevel gear (13) and moving wheel (14), the inside of first pig body (1) and second pig body (2) is fixed with first motor (4), the power output end of first motor (4) is fixed with driving bevel gear (5), the outside of driving bevel gear (5) is connected with three driven bevel gear (6), one side of driven bevel gear (6) is fixed with threaded lead screw (7), the outside of threaded lead screw (7) is connected with threaded sleeve (8), one end of threaded sleeve (8) is fixed with mounting seat (9), one side of mounting seat (9) is fixed with two guide rods (10), a plurality of guide rods (10) are slidably connected with first pig body (1) and second pig body (2), the top of mounting seat (9) is fixed with second motor (11), the power output end of second motor (11) is fixed with driving bevel gear (12), the outside of driving bevel gear (12) is connected with driven bevel gear (13), the bottom of driven bevel gear (13) is fixed with moving wheel (14), and moving wheel (14) and mounting seat (9) are rotatably connected.

2. A natural gas pipeline pig according to claim 1, wherein, The cleaning mechanism includes third motor (15), gear disc (16), rack (17), guide plate (18), moving rod (19), mounting plate (20), scraper (21) and cleaning brush (22), the inside of rotary disc (3) is fixed with third motor (15), the power output end of third motor (15) is fixed with gear disc (16), the outside of gear disc (16) is connected with three racks (17), one side of rack (17) is fixed with guide plate (18), a plurality of guide plates (18) are slidably connected with rotary disc (3), one end of rack (17) is fixed with moving rod (19), one end of moving rod (19) is equipped with mounting plate (20), one end of one side of mounting plate (20) is fixed with scraper (21), the other end of one side of mounting plate (20) is fixed with cleaning brush (22).

3. A natural gas pipeline pig according to claim 1, wherein, The flexible connecting mechanism comprises a universal joint (25), a limiting head (26) and a second spring (27), the first pig body (1) and the second pig body (2) are connected through the universal joint (25), a plurality of limiting heads (26) are uniformly distributed and fixed on the end of the first pig body (1) and the second pig body (2) close to each other, and the outer portions of the two limiting heads (26) are sleeved with a second spring (27).

4. A natural gas pipeline pig according to claim 2, wherein, The inside of the moving rod (19) is slidably connected with a buffer rod (24), the inside of the moving rod (19) and one end of the buffer rod (24) are slidably connected with a first spring (23), and one end of the buffer rod (24) and the mounting plate (20) are fixed.

5. A natural gas pipeline pig according to claim 1, wherein, The mounting seat (9) is fixed with a protective cover (28) on one side and outside the second motor (11), the driving helical gear (12) and the driven helical gear (13).

6. A natural gas pipeline pig according to claim 1, wherein, One end of the second pig body (2) is fixed with a hanging ring (29).

7. A natural gas pipeline pig according to claim 1, wherein, One end of the first pig body (1) is fixed with a fourth motor (30), and the power output end of the fourth motor (30) is fixed with the rotating disc (3).

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