Pipe cleaning device for gas pipeline

Abstract

The invention discloses a gas pipeline cleaning device, which belongs to the technical field of gas pipeline cleaning and comprises a base, a sliding seat is slidably mounted on the base, a fixing rod is fixed on the sliding seat, a cover plate is fixed at the top end of the fixing rod, and a piston plate is arranged on one side of the cover plate. Sleeves are symmetrically arranged on the side, close to the piston plate, of the cover plate, movable rods are movably arranged in the sleeves, one ends of the two movable rods are fixedly connected with the piston plate, a rotating shaft is rotationally installed on the side wall, away from the cover plate, of the piston plate, a roller brush is installed on the rotating shaft, and a plurality of crushing rods are fixed to one end of the roller brush; a scraping ring is jointly arranged on the crushing rods; the gas pipeline cleaning device can effectively clean dust in a gas pipeline and impurities attached to the pipe wall, is suitable for gas pipelines of various lengths, and is easy to operate and high in applicability.

Description

Technical Field

[0001] The present invention relates to the technical field of gas pipeline cleaning, and particularly relates to a pigging device for gas pipelines. Background Art

[0002] After the production of gas pipelines, there will be dirt inside them, so the pipelines need to be cleaned. Traditionally, brushes are used for cleaning, but brush cleaning is rather troublesome. Therefore, cleaners are used in the market to clean the inner wall. Although the cleaners are relatively fast in cleaning, due to the long length of gas pipelines, they cannot clean the deep parts of the pipelines.

[0003] After retrieval, it is found that the patent with the publication number CN217990296U discloses a pigging device for gas pipeline construction, including a connecting rod and an extension rod. The left end of the connecting rod is fixedly connected with a cleaning ball. The left side of the cleaning ball is fixedly connected with a connecting block. The other end of the connecting block is fixedly connected with a cleaning ball. The outer side of the cleaning ball is fixedly connected with evenly distributed cleaning brushes. The outer side of the rubber sleeve is fixedly connected with a cleaning sponge sleeve. With the connecting rod, cleaning ball, cleaning ball, connecting block, rubber sleeve, cleaning cloth sleeve, cleaning sponge sleeve and cleaning brushes provided in this patent, the inner wall of the gas pipeline can be conveniently cleaned. With the extension rod, threaded rod and threaded groove provided, when the length of the cleaning rod is not enough, the connecting rod can be extended to facilitate the cleaning of the inner wall of the gas pipeline; However, the above patent still has some deficiencies: there are some impurities adhering to the inner wall of the gas pipeline. Only some dust can be removed by the cleaning ball, and the operator cannot observe the inside of the pipeline and does not know exactly where the impurities are. The impurities adhering to the pipe wall cannot be effectively cleaned. Moreover, the length of a section of the gas pipeline is between 6 and 12 meters. If complete cleaning is required, a longer extension rod is needed, which undoubtedly increases the use cost and operation difficulty. Summary of the Invention

[0004] The purpose of the present invention is to provide a pigging device for gas pipelines, and solve the following technical problems: there are some stubborn impurities adhering to the inner wall of the gas pipeline. Only some dust can be removed by the cleaning ball, and the impurities adhering to the pipe wall cannot be effectively cleaned. Moreover, the length of a section of the gas pipeline is between 6 and 12 meters. If complete cleaning is required, a longer extension rod is needed, which undoubtedly increases the use cost and operation difficulty.

[0005] The purpose of the present invention can be achieved by the following technical solutions: A pigging device for a gas pipeline, comprising a base, a sliding seat is slidably mounted on the base, a fixing rod is fixed on the sliding seat, a cover plate is fixed at the top end of the fixing rod, a piston plate is arranged on one side of the cover plate, sleeves are symmetrically arranged on the side of the cover plate close to the piston plate, a movable rod is movably arranged in the sleeve, one ends of the two movable rods are fixedly connected with the piston plate, a rotating shaft is rotatably mounted on the side wall of the piston plate away from the cover plate, a roller brush is mounted on the rotating shaft, a plurality of crushing rods are fixed at one end of the roller brush, and a scraping ring is arranged on the plurality of crushing rods together; An installation plate is arranged on the side of the piston plate away from the rotating shaft, and a driving device is arranged between the installation plate and the rotating shaft for driving the rotating shaft to rotate; An air inlet pipe is connected to the cover plate, and the air inlet pipe is connected to an external air pump.

[0006] As a further scheme of the present invention: a sliding groove is formed on the base, a slider is slidably connected in the sliding groove, the slider is fixedly connected with the sliding seat, and the sliding seat is connected to an external driving source.

[0007] As a further scheme of the present invention: the driving device includes a plurality of stress blocks, the plurality of stress blocks are distributed in a circumferential array on the rotating shaft, a plurality of first installation holes are formed on the installation plate, and an L-shaped pressure relief pipe is connected to each of the first installation holes, a pressure relief valve is installed on the pressure relief pipe, a plurality of second installation holes are formed on the piston plate, and the plurality of first installation holes correspond to the plurality of second installation holes one by one, and the plurality of pressure relief pipes are respectively inserted into the plurality of second installation holes.

[0008] As a further scheme of the present invention: an installation frame is arranged on the sliding seat, a winding drum is rotatably mounted on the installation frame, a first pulling rope is wound on the winding drum, a through hole is formed on the cover plate, a sealing ring is arranged in the through hole, one end of the first pulling rope passes through the sealing ring and is connected to the installation plate, and the winding drum is driven by an external motor.

[0009] As a further scheme of the present invention: a groove is formed on the side wall of the piston plate close to the installation plate, a magnetic part is fixed in the groove, an adsorption part is installed on the side wall of the installation plate close to the piston plate, and a second pulling rope is connected between the installation plate and the groove.

[0010] As a further scheme of the present invention: a plurality of support rods are arranged on the base, and a support seat is fixed on the support rods.

[0011] As a further scheme of the present invention: a plurality of stoppers are arranged on the support seat away from the cover plate.

[0012] The beneficial effects of the present invention: (1) The present invention achieves the cleaning effect by setting a roller brush. During the use process, first connect the air inlet pipe to an external air pump, start the air pump to convey the air flow into the pipe, use the air pressure to push the piston plate to move, drive the roller brush to move along the pipeline and clean impurities. The crushing rod at the front end of the roller brush and the scraping ring cooperate to crush and scrape the adhered impurities together. If encountering larger impurities that will hinder the movement of the scraping ring, at this time, the driving device can be used to drive the rotating shaft to rotate, and use the rotation of the crushing rod and the scraping ring to crush and scrape the impurities, then the piston plate can continue to move, and the entire inner part of the pipeline can be cleaned completely. The operation is simple and it is applicable to gas pipelines of various lengths. (2) The present invention sets multiple stress blocks on the rotating shaft. After the scraping ring is blocked by impurities and stops moving, the air pressure between the piston plate and the cover plate continues to increase, and the excess air is continuously discharged through the pressure relief pipe and blows the stress blocks, causing the rotating shaft to rotate, so as to crush and scrape the large impurities through the rotation of the crushing rod and the scraping ring, completely remove the impurities, and then the crushing rod and the scraping ring can continue to move. (3) The present invention sets a winding drum and a first pull rope. After the gas pipeline is cleaned, use the winding drum to wind the rope, and the piston plate and the roller brush can be reset, which is convenient for the next cleaning work. Brief Description of the Drawings

[0013] The following further describes the present invention in conjunction with the drawings.

[0014] Figure 1 is the first perspective structural schematic diagram of the whole of the present invention; Figure 2 is the second perspective structural schematic diagram of the whole of the present invention; Figure 3 is the structural schematic diagram of the cover plate, piston plate and roller brush of the present invention; Figure 4 is the first perspective structural schematic diagram of the mounting plate and the piston plate in the disassembled state of the present invention; Figure 5 is the second perspective structural schematic diagram of the mounting plate and the piston plate in the disassembled state of the present invention; Figure 6 is Figure 2 the enlarged view of A in

[0015] In the figure: 1, base; 2, support rod; 3, support seat; 4, chute; 5, sliding seat; 6, mounting bracket; 7, winding drum; 8, first pull rope; 9, fixed rod; 10, cover plate; 11, intake pipe; 12, sleeve; 13, movable rod; 14, piston plate; 15, rotating shaft; 16, roller brush; 17, scraping ring; 18, crushing rod; 19, sealing ring; 20, mounting plate; 21, first mounting hole; 22, pressure relief pipe; 23, second mounting hole; 24, force-bearing block; 25, groove; 26, magnetic part; 27, attracting part; 28, second pull rope; 29, stop block.

[0016] The attached drawings are only for illustrative purposes and should not be construed as limitations on the present invention; for better illustration of this embodiment, some components in the attached drawings are omitted, enlarged or reduced, and do not represent the size and shape of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the attached drawings may be omitted. Detailed implementation manners

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] Please refer to Figures 1 to 3As shown in the figure, the present invention is a pigging device for gas pipelines, including a base 1. A sliding seat 5 is slidably mounted on the base 1. A fixed rod 9 is fixed on the sliding seat 5. The top of the fixed rod 9 is fixed with a cover plate 10. One side of the cover plate 10 is provided with a piston plate 14. On the side of the cover plate 10 close to the piston plate 14, sleeves 12 are symmetrically arranged. An active rod 13 is movably arranged in the sleeve 12. One ends of the two active rods 13 are fixedly connected to the piston plate 14. A rotating shaft 15 is rotatably mounted on the side wall of the piston plate 14 away from the cover plate 10. A roller brush 16 is mounted on the rotating shaft 15. A plurality of crushing rods 18 are fixed at one end of the roller brush 16. A scraping ring 17 is jointly arranged on the plurality of crushing rods 18. On the side of the piston plate 14 away from the rotating shaft 15, a mounting plate 20 is provided. A driving device is arranged between the mounting plate 20 and the rotating shaft 15 for driving the rotating shaft 15 to rotate. An air inlet pipe 11 is connected to the cover plate 10. The air inlet pipe 11 is connected to an external air pump. During use, the piston plate 14, the roller brush 16 and the scraping ring 17 are placed into the gas pipeline, and the cover plate 10 is covered to make the space between the cover plate 10 and the piston plate 14 in a sealed state. Then, the external air pump and the air inlet pipe 11 are used to inflate the inside. With the push of the air pressure, the piston plate 14 gradually moves towards the other end of the gas pipeline. During the movement, the scraping ring 17 scrapes off impurities, and the roller brush 16 sweeps away dust. When encountering larger impurities, the scraping ring 17 is blocked and cannot move. At this time, the driving device can drive the rotating shaft 15 to rotate. By using the rotation of the crushing rods 18 and the scraping ring 17, the large impurities are broken and scraped off, and the piston plate 14 can continue to move, so as to completely clean the inside of the whole pipeline. The functions of the sleeves 12 and the active rods 13 are to support the piston plate 14. When the piston plate 14 moves, the active rods 13 automatically disengage from the sleeves 12.

[0019] Referring to Figure 1 , a chute 4 is formed on the base 1. A slider is slidably connected in the chute 4. The slider is fixedly connected to the sliding seat 5. The sliding seat 5 is connected to an external driving source. The external driving source is used to drive the sliding seat 5 to move in the chute 4, so that the piston plate 14, the roller brush 16 and the scraping ring 17 automatically enter the gas pipeline. The external driving source can adopt a cylinder.

[0020] Referring to Figures 3 to 5, the driving device includes multiple force - receiving blocks 24. The multiple force - receiving blocks 24 are distributed in a circumferential array on the rotating shaft 15. Multiple first mounting holes 21 are formed on the mounting plate 20, and an L - shaped pressure - relief pipe 22 is connected to each first mounting hole 21. A pressure - relief valve is installed on the pressure - relief pipe 22. Multiple second mounting holes 23 are formed on the piston plate 14, and the multiple first mounting holes 21 correspond to the multiple second mounting holes 23 one by one. Multiple pressure - relief pipes 22 are respectively inserted into the multiple second mounting holes 23. When the scraping ring 17 is blocked by larger impurities, since the piston plate 14 cannot move, the air pressure between the piston plate 14 and the cover plate 10 increases and is discharged through the pressure - relief pipe 22. The air blows towards the force - receiving blocks 24 to drive the rotating shaft 15 to rotate. The rotating shaft 15 drives the roller brush 16, the crushing rod 18, and the scraping ring 17 to rotate, crushing and removing the larger impurities. Subsequently, the piston plate 14 can continue to move, and air cannot be discharged through the pressure - relief pipe 22.

[0021] Refer to Figure 1 and Figure 3 , an installation frame 6 is arranged on the sliding seat 5. A winding drum 7 is rotatably installed on the installation frame 6. A first pulling rope 8 is wound around the winding drum 7. A through - hole is formed on the cover plate 10, and a sealing ring 19 is arranged in the through - hole. One end of the first pulling rope 8 passes through the sealing ring 19 and is connected to the mounting plate 20. The winding drum 7 is driven by an external motor. When the cleaning is completed, the winding drum 7 winds up the rope to reset the mounting plate 20 and the piston plate 14, facilitating the subsequent cleaning work.

[0022] Refer to Figure 5 and Figure 6 , a groove 25 is formed on the side wall of the piston plate 14 close to the mounting plate 20. A magnetic part 26 is fixed in the groove 25. An attracting part 27 is installed on the side wall of the mounting plate 20 close to the piston plate 14. A second pulling rope 28 is connected between the mounting plate 20 and the groove 25. The piston plate 14 and the mounting plate 20 are connected by the magnetic part 26 and the attracting part 27. The diameter of the pressure - relief pipe 22 is smaller than the diameter of the second mounting hole 23. When the winding drum 7 winds up the rope to reset, under the action of the first pulling rope 8, the mounting plate 20 is separated from the piston plate 14. At this time, the air inside the gas pipeline can be discharged through the second mounting hole 23, which is not only beneficial to the reset of the piston plate 14, but also the air discharged through the second mounting hole 23 can clean the roller brush 16. It should be noted that the magnetic part 26 is a magnet, and the attracting part 27 is made of iron material.

[0023] Refer to Figure 1 and Figure 6 , multiple support rods 2 are arranged on the base 1. A support seat 3 is fixed on the support rod 2. Multiple stoppers 29 are arranged on the support seat 3 far from the cover plate 10. The multiple support seats 3 are used to place the gas pipeline, and the stoppers 29 prevent the piston plate 14 from detaching from the gas pipeline.

[0024] Working principle of the present invention: First, place the gas pipeline to be cleaned on multiple support seats 3. Use an external drive source (not shown) to drive the sliding seat 5 to move, so that the piston plate 14, the roller brush 16 and the scraping ring 17 enter the gas pipeline. The cover plate 10 seals one end of the gas pipeline. Use an external air pump (not shown) and the air inlet pipe 11 to inflate the inside of the pipeline. With the push of the air pressure, the piston plate 14 gradually moves towards the other end of the gas pipeline. At this time, since the space between the cover plate 10 and the piston plate 14 is constantly increasing, the air will not be discharged through the pressure relief pipe 22. During the movement, the scraping ring 17 scrapes off impurities, and the roller brush 16 sweeps away dust; When encountering larger impurities, the scraping ring 17 is blocked and cannot move, and the piston plate 14 cannot move. After the air pressure between the cover plate 10 and the piston plate 14 increases, it is discharged through the pressure relief pipe 22. The air blows towards the force-receiving block 24, thereby driving the rotating shaft 15 to rotate. The rotating shaft 15 drives the roller brush 16, the crushing rod 18 and the scraping ring 17 to rotate, breaks and removes the larger impurities. After the impurities no longer obstruct, the piston plate 14 can continue to move, and the entire inside of the pipeline can be completely cleaned; When the piston plate 14 moves, it will pull the first pull rope 8 to move, and the winding drum 7 pays out the rope. After the piston plate 14 moves to the other end of the gas pipeline, the cleaning is completed. At this time, use an external motor (not shown) to drive the winding drum 7 to rotate for winding. Since the air pressure inside the gas pipeline is relatively large, the piston plate 14 cannot move smoothly. The first pull rope 8 will pull the mounting plate 20 away from the piston plate 14. At this time, the air inside the gas pipeline can be discharged through the second mounting hole 23 to relieve the pressure inside the pipeline. The discharged air can blow away the impurities on the roller brush 16. After the winding is completed, the piston plate 14 can be reset. Then reset the sliding seat 5, and remove the cleaned pipeline.

[0025] The above has described an embodiment of the present invention in detail, but the content described is only the preferred embodiment of the present invention and cannot be considered as used to limit the scope of implementation of the present invention. All equal changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A gas pipeline cleaning device, comprising a base (1), characterized in that: A sliding seat (5) is slidably mounted on the base (1), a fixing rod (9) is fixed on the sliding seat (5), a cover plate (10) is fixed on the top of the fixing rod (9), a piston plate (14) is arranged on one side of the cover plate (10), a sleeve (12) is symmetrically arranged on the side of the cover plate (10) close to the piston plate (14), a movable rod (13) is movably arranged in the sleeve (12), one end of two movable rods (13) are fixedly connected to the piston plate (14), a rotating shaft (15) is rotatably mounted on the side wall of the piston plate (14) away from the cover plate (10), a roller brush (16) is mounted on the rotating shaft (15), a plurality of crushing rods (18) are fixed on one end of the roller brush (16), and a scraper ring (17) is commonly arranged on the plurality of crushing rods (18); A mounting plate (20) is provided on a side of the piston plate (14) away from the rotating shaft (15), and a driving device is provided between the mounting plate (20) and the rotating shaft (15) for driving the rotating shaft (15) to rotate; An air intake pipe (11) is connected to the cover plate (10), and the air intake pipe (11) is connected to an external air pump.

2. A gas pipeline cleaning device according to claim 1, characterized in that: The base (1) is provided with a slide groove (4), a sliding block is slidably connected in the slide groove (4), the sliding block is fixedly connected to a sliding seat (5), and the sliding seat (5) is connected to an external driving source.

3. A gas pipeline cleaning device according to claim 1, characterized in that: The driving device comprises a plurality of force-bearing blocks (24), the plurality of force-bearing blocks (24) being distributed on the rotating shaft (15) in a circular array, a plurality of first mounting holes (21) being provided on the mounting plate (20), and each of the first mounting holes (21) being connected to an L-shaped pressure relief pipe (22), a pressure relief valve being installed on the pressure relief pipe (22), a plurality of second mounting holes (23) being provided on the piston plate (14), the plurality of first mounting holes (21) corresponding to the plurality of second mounting holes (23) one by one, and the plurality of pressure relief pipes (22) being respectively inserted into the plurality of second mounting holes (23).

4. A gas pipeline cleaning device according to claim 3, characterized in that: The sliding seat (5) is provided with a mounting frame (6), a winding drum (7) is rotatably mounted on the mounting frame (6), a first pull rope (8) is wound around the winding drum (7), a through hole is opened on the cover plate (10), a sealing ring (19) is arranged in the through hole, one end of the first pull rope (8) passes through the sealing ring (19) and is connected to the mounting plate (20), and the winding drum (7) is driven by an external motor.

5. A gas pipeline cleaning device according to claim 4, characterized in that: A groove (25) is provided on the side wall of the piston plate (14) close to the mounting plate (20), a magnetic component (26) is fixed in the groove (25), an adsorption component (27) is installed on the side wall of the mounting plate (20) close to the piston plate (14), and a second pull rope (28) is connected between the mounting plate (20) and the groove (25).

6. A gas pipeline cleaning device according to claim 1, characterized in that: A plurality of support rods (2) are arranged on the base (1), and a support seat (3) is fixed on the support rod (2).

7. A gas pipeline cleaning device according to claim 6, characterized in that: A plurality of stoppers (29) are provided on the support seat (3) away from the cover plate (10).

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