Natural gas pipeline cleaning device

Abstract

The invention provides a natural gas pipeline cleaning device which comprises an inner wall cleaning structure, the inner wall cleaning structure comprises a rotating ring, a positioning hole is formed in the middle of the rotating ring, a plurality of side edge strips are arranged on the outer wall of the rotating ring, an auxiliary ring is arranged between the side edge strips, a toothed ring is arranged at the top of the auxiliary ring, and the toothed ring is arranged on the outer wall of the rotating ring. A hydraulic telescopic rod is arranged on the outer wall of the auxiliary ring, and a pushing block is arranged at one end of the hydraulic telescopic rod. The natural gas pipeline cleaning device is reasonable in design, cleaning liquid enters a rotating ring and the inner wall of a side edge strip through a water tank, a positioning ring and a containing groove, then a pipeline is arranged between the side edge strip and a drainage hole, the cleaning liquid can make contact with the inner wall of a natural gas pipeline, meanwhile, a servo motor is started, and the servo motor drives a cleaning ring on the outer wall to rotate through a driving gear and a gear ring; therefore, the inner wall of the natural gas pipeline is cleaned.

Description

Technical Field

[0001] This invention relates primarily to the field of natural gas pipelines, and more specifically to a natural gas pipeline cleaning device. Background Technology

[0002] Natural gas, as an important clean energy source, is primarily transported via long-distance pipeline networks, either buried underground or laid on the ground. During long-term operation, various impurities inevitably accumulate on the inner walls of these pipelines, such as iron sulfide powder, dust, hydrates, condensate oil, and even welding slag and metal fragments left over from construction. These deposits significantly reduce the effective flow area of ​​the pipeline, increase transmission resistance, leading to increased pressure drop, reduced transmission efficiency, and higher energy consumption. More seriously, some corrosive deposits (such as iron sulfide) can continuously corrode the pipe walls in humid environments, creating significant safety hazards such as pipeline perforation and leaks. Therefore, regular cleaning of natural gas pipelines is a necessary maintenance measure to ensure their safe, efficient, and economical operation.

[0003] Currently, the most widely used cleaning technology in the industry for the internal cleaning of natural gas pipelines is water jet cleaning. This technology typically uses a pipeline pig (PIG) ​​as a carrier, propelled by the pressure difference of natural gas or water flow within the pipeline. The pig is equipped with a high-pressure nozzle and connected to a high-pressure water pump unit via a flexible hose extending to the outside of the pipeline. During the pig's movement, the high-pressure water pump continuously supplies high-pressure water, driving the nozzle to rotate and perform a 360° high-pressure jet flush on the inner wall of the pipeline, aiming to wash away impurities adhering to the pipe wall, and then using subsequent water flow to remove the contaminants.

[0004] Because high-pressure water needs to be transported through long-distance hoses, the pressure loss in the pipeline is significant. As the cleaning machine penetrates deeper into the pipeline, the actual working pressure and flow rate at the nozzle decrease significantly, the cleaning impact weakens, and the cleaning effect on firmly attached hard deposits is greatly reduced, resulting in inconsistent cleaning effects between the first and second halves of the pipeline.

[0005] It should be noted that the above content falls within the scope of the inventor's technical knowledge. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art. Summary of the Invention

[0006] 1. The technical problem that the invention aims to solve: The present invention provides a natural gas pipeline cleaning device to solve the technical problems existing in the background art.

[0007] 2. Technical Solution: To achieve the above objectives, the technical solution provided by the present invention is as follows: a natural gas pipeline cleaning device, comprising an intermediate fixed structure, a movable pipe structure slidably connected inside the intermediate fixed structure, installation structures provided at both ends of the movable pipe structure, and an inner wall cleaning structure rotatably connected to the outer wall of the installation structure; The inner wall cleaning structure includes a rotating ring with a positioning hole in the middle. Multiple side strips are provided on the outer wall of the rotating ring, and auxiliary rings are arranged between the side strips. A toothed ring is provided at the top of the auxiliary rings. Hydraulic telescopic rods are provided on the outer wall of the auxiliary rings, with a pushing block at one end. Multiple hydraulic telescopic rods are provided, and cleaning rings are arranged between the multiple hydraulic telescopic rods. The cleaning rings are connected to the pushing blocks. A drain hole is provided in the middle of the outer wall of the cleaning rings, and cleaning strips are provided at the top and bottom of the outer wall of the cleaning rings.

[0008] Furthermore, the intermediate fixing structure includes a mounting ring and an electric push rod. The inner walls of the mounting ring are provided with first connecting blocks on both sides, the inner walls of the first connecting blocks are provided with hydraulic push rods, and the outer walls of the mounting ring are provided with first side plates. The number of first side plates is set to multiple.

[0009] Furthermore, mounting brackets are provided at the top and bottom of the first side plate, and positioning rings are provided between the plurality of mounting brackets.

[0010] Furthermore, a connecting ring is provided on the outer wall of the first side plate, an auxiliary groove is provided on the outer side of the connecting ring, and multiple sliding grooves are provided inside the auxiliary groove.

[0011] Furthermore, the electric push rod is disposed on the outer wall of the mounting ring, and the output end of the electric push rod is provided with a slide rod, which is slidably connected to the inner wall of the slide groove. One end of the slide rod is provided with a support ring, and one end of the support ring is provided with an anti-slip ring.

[0012] Furthermore, the movable tube structure includes a movable tube body, with second connecting blocks on both sides of the outer wall of the movable tube body. The second connecting blocks are connected to a hydraulic push rod. First pin holes are opened on both sides of the top and bottom of the movable tube body, and a water tank is opened inside the movable tube body.

[0013] Furthermore, the outer walls at both ends of the moving tube body are provided with second side plates, one end of the second side plate is provided with a servo motor, and the output end of the servo motor is provided with a drive gear, which meshes with a gear ring.

[0014] Furthermore, the installation structure includes a positioning ring, a positioning tube is provided in the middle of the positioning ring, the inner wall of the positioning ring is in contact with the outer wall of the moving tube body, and a second pin hole is provided on both sides inside the positioning ring, with a pin provided between the second pin hole and the first pin hole.

[0015] Furthermore, the outer wall of the positioning ring is provided with a placement groove, and the inner wall of the placement groove is rotatably connected to the positioning hole.

[0016] 3. Beneficial effects: Compared with the prior art, the technical solution provided by this invention has the following advantages: This invention utilizes a combination of an intermediate fixing structure, a movable pipe structure, and an installation structure. When the intermediate fixing structure is in contact with the inner wall of the gas pipeline, the movable pipe structure pushes the inner wall cleaning structure towards one end of the gas pipeline. Then, the inner wall cleaning structure is in contact with the inner wall of the gas pipeline and cleans the inner wall. After the inner wall cleaning structure is in contact with the gas pipeline, the intermediate fixing structure moves towards one end of the gas pipeline and is fixed. This process is repeated to allow the inner wall cleaning structure to move gradually and clean the inner wall of the gas pipeline. The cleaning fluid enters the inner wall of the rotating ring and side strip through the water tank, positioning ring, and placement slot. Then, a pipe is installed between the side strip and the drain hole, allowing the cleaning fluid to come into contact with the inner wall of the natural gas pipeline. At the same time, the servo motor is started, and the servo motor drives the cleaning ring on the outer wall to rotate through the drive gear and gear ring, thereby cleaning the inner wall of the natural gas pipeline. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional unfolded schematic diagram of the intermediate fixed structure of the present invention; Figure 3 This is a three-dimensional structural diagram of the movable tube structure of the present invention; Figure 4 This is a three-dimensional structural diagram of the inner wall cleaning structure of the present invention.

[0018] Figure label: 1. Intermediate fixed structure; 101. Mounting ring; 102. First connecting block; 103. Hydraulic push rod; 104. First side plate; 105. Mounting bracket; 106. Positioning ring; 107. Connecting ring; 108. Auxiliary groove; 109. Slide groove; 110. Electric push rod; 111. Slide rod; 112. Support ring; 113. Anti-slip ring; 2. Moving pipe structure; 201. Moving pipe body; 202. Second connecting block; 203. First pin hole; 204. Water... 205. Second side plate; 206. Servo motor; 207. Drive gear; 3. Mounting structure; 301. Positioning ring; 302. Positioning tube; 303. Second pin hole; 304. Placement groove; 4. Inner wall cleaning structure; 401. Rotating ring; 402. Positioning hole; 403. Side strip; 404. Auxiliary ring; 405. Gear ring; 406. Hydraulic telescopic rod; 407. Push block; 408. Cleaning ring; 409. Drain hole; 410. Cleaning strip. Detailed Implementation

[0019] To facilitate understanding of the present invention, a more complete description of the invention will be given below with reference to the accompanying drawings, which illustrate several embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the invention will be more thorough and complete.

[0020] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "page," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this invention, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. Example

[0023] See attached document Figure 1-4 A natural gas pipeline cleaning device includes an intermediate fixed structure 1, a movable pipe structure 2 slidably connected inside the intermediate fixed structure 1, an installation structure 3 at both ends of the movable pipe structure 2, and an inner wall cleaning structure 4 rotatably connected to the outer wall of the installation structure 3. The inner wall cleaning structure 4 includes a rotating ring 401 with a positioning hole 402 in the center. Side strips 403 are provided on the outer wall of the rotating ring 401. Multiple side strips 403 are provided, and auxiliary rings 404 are arranged between them. A toothed ring 405 is provided at the top of the auxiliary rings 404. Hydraulic telescopic rods 406 are provided on the outer wall of the auxiliary rings 404. A pushing block 407 is provided at one end of each hydraulic telescopic rod 406. Multiple hydraulic telescopic rods 406 are provided, and a cleaning ring 408 is arranged between them. The cleaning ring 408 and the pushing block 407... 07 connection, the cleaning ring 408 has a drain hole 409 in the middle of its outer wall, and cleaning strips 410 are provided at the top and bottom of the outer wall of the cleaning ring 408. Then, the hydraulic telescopic rod 406 is activated, and the hydraulic telescopic rod 406 pushes the pushing block 407 to move outward. The pushing block 407 pushes the flexible cleaning ring 408 to fit against the inner wall of the natural gas pipeline. Then, the servo motor 206 is activated, and the servo motor 206 drives the drive gear 207 to rotate. The drive gear 207 rotates through the gear ring 405, so that the gear ring 405 drives the positioning hole 402 to rotate in the inner wall of the placement groove 304, so that the gear ring 405 drives the cleaning ring 408 to clean the inner wall of the natural gas pipeline. After the cleaning of one ring of natural gas pipeline is completed, the cleaning ring 408 continues to adhere to the inner wall of the natural gas pipeline.

[0024] Furthermore, the intermediate fixing structure 1 includes a mounting ring 101 and an electric push rod 110. First connecting blocks 102 are provided on both sides of the inner wall of the mounting ring 101. A hydraulic push rod 103 is provided on the inner wall of the first connecting blocks 102. A first side plate 104 is provided on the outer wall of the mounting ring 101. Multiple first side plates 104 are provided. Mounting brackets 105 are provided at the top and bottom of the first side plates 104. Positioning rings 106 are provided between the multiple mounting brackets 105. A connecting ring 107 is provided on the outer wall of the first side plate 104. An auxiliary groove 108 is formed on the outer side of the connecting ring 107. Multiple sliding grooves 109 are formed inside the auxiliary groove 108. The electric push rod 110... 10 is set on the outer wall of the mounting ring 101. The output end of the electric push rod 110 is provided with a slide rod 111. The slide rod 111 is slidably connected to the inner wall of the slide groove 109. One end of the slide rod 111 is provided with a support ring 112. One end of the support ring 112 is provided with an anti-slip ring 113. When it is necessary to clean the inner wall of a natural gas pipe with a larger diameter, the mounting structure 3 is installed on the outer wall of the moving pipe structure 2. Then, the intermediate fixing structure 1 and the inner wall cleaning structure 4 are placed into the inner wall of the natural gas pipeline. Then, the electric push rod 110 is activated. The electric push rod 110 pushes the slide rod 111 to slide on the inner wall of the slide groove 109. Then, the slide rod 111 drives the anti-slip ring 113 on the outer wall of the support ring 112 to fit against the inner wall of the natural gas pipeline. Then, the chute 109 drives the support ring 112 to detach from the inner wall of the natural gas pipeline. After that, the hydraulic push rod 103 is activated, which drives the installation ring 101 to slide to a suitable position on the outer wall of the moving pipe body 201. Then, the support ring 112 continues to adhere to the inner wall of the natural gas pipeline. Then, the hydraulic telescopic rod 406 is activated, which drives the cleaning ring 408 to move inward and detach from the inner wall of the natural gas pipeline. Then, the hydraulic push rod 103 is activated again, which pushes the moving pipe body 201 to move, so that the moving pipe body 201 drives the installation structure 3 and the inner wall cleaning structure 4 to move on the inner wall of the natural gas pipeline.

[0025] Furthermore, the movable tube structure 2 includes a movable tube body 201. Second connecting blocks 202 are provided on both sides of the outer wall of the movable tube body 201. The second connecting blocks 202 are connected to the hydraulic push rod 103. First pin holes 203 are provided on both sides of the top and bottom of the movable tube body 201. A water tank 204 is provided inside the movable tube body 201. Second side plates 205 are provided on the outer walls at both ends of the movable tube body 201. A servo motor 206 is provided at one end of the second side plate 205. A drive gear 207 is provided at the output end of the servo motor 206, and the drive gear 207 meshes with a gear ring 405.

[0026] Furthermore, the mounting structure 3 includes a positioning ring 301, with a positioning tube 302 disposed in the center of the positioning ring 301. The inner wall of the positioning ring 301 is fitted against the outer wall of the moving tube body 201. Second pin holes 303 are formed on both sides of the interior of the positioning ring 301, and a pin is disposed between the second pin hole 303 and the first pin hole 203. A placement groove 304 is formed on the outer wall of the positioning ring 301, and the inner wall of the placement groove 304 rotates with the positioning hole 402. The positioning ring 301 is inserted into both ends of the moving pipe body 201, and the second pin hole 303 is aligned with the first pin hole 203 and connected by a pin. At the same time, the water tank 204 is connected to the pipe and the pump body, so that the cleaning fluid can enter the interior of the rotating ring 401 through the water tank 204, the positioning pipe 302 and the placement tank 304. Then the cleaning fluid enters the interior of the drain hole 409 through the rotating ring 401, the side strip 403 and the hose, so that the cleaning fluid comes into contact with the inner wall of the natural gas pipeline.

[0027] Initial placement: The assembled device, including the intermediate fixing structure 1, the moving pipe structure 2, the installation structure 3, and the inner wall cleaning structure 4, is placed into the natural gas pipeline from the pipeline inlet.

[0028] Fixed intermediate structure: Start the electric push rod 110 to push the slide rod 111 to slide along the slide groove 109, so that the anti-slip ring 113 at the end of the support ring 112 fits tightly against the inner wall of the pipe, thereby fixing the position of the intermediate fixing structure 1 in the pipe.

[0029] Mobile cleaning structure: Activate hydraulic push rod 103 to push mobile pipe structure 2 to slide along the pipeline axis, thereby driving installation structure 3 and inner wall cleaning structure 4 forward to the section to be cleaned.

[0030] Deploy cleaning ring 408: Activate hydraulic telescopic rod 406 to push push block 407 outward, so that flexible cleaning ring 408 fits against the inner wall of pipe.

[0031] Rotary cleaning: Start the servo motor 206 to drive the drive gear 207 to rotate, which in turn drives the cleaning ring 408 to rotate via the gear ring 405. At the same time, the cleaning fluid is pumped in through the water tank 204, enters the inner wall cleaning structure through the positioning tube 302 and the placement tank 304, and is sprayed out from the drain hole 409, working with the cleaning strip 410 to scrub and rinse the inner wall of the pipe.

[0032] Segmented Movement: After cleaning one segment, retract the hydraulic telescopic rod 406 to disengage the cleaning ring 408 from the inner wall, then release the intermediate fixing structure 1 (electric push rod 110 retracts the support ring 112), and then push the moving pipe structure 2 forward to the next segment via the hydraulic push rod 103. Repeat the above actions until the entire pipeline is cleaned.

[0033] The above-described embodiments are merely illustrative of certain implementations of the present invention, and are described in a relatively specific and detailed manner. However, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements are all within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A natural gas pipeline cleaning device, characterized in that: include An intermediate fixed structure (1) is provided with a sliding connection to a movable tube structure (2) inside the intermediate fixed structure (1). An installation structure (3) is provided at both ends of the movable tube structure (2). An inner wall cleaning structure (4) is rotatably connected to the outer wall of the installation structure (3). The inner wall cleaning structure (4) includes a rotating ring (401), a positioning hole (402) is provided in the middle of the rotating ring (401), a side strip (403) is provided on the outer wall of the rotating ring (401), the number of side strips (403) is set to multiple, an auxiliary ring (404) is provided between the multiple side strips (403), a toothed ring (405) is provided on the top of the auxiliary ring (404), a hydraulic telescopic rod (406) is provided on the outer wall of the auxiliary ring (404), a push block (407) is provided at one end of the hydraulic telescopic rod (406), the number of hydraulic telescopic rods (406) is set to multiple, a cleaning ring (408) is provided between the multiple hydraulic telescopic rods (406), the cleaning ring (408) is connected to the push block (407), a drain hole (409) is provided in the middle of the outer wall of the cleaning ring (408), and cleaning strips (410) are provided on the top and bottom of the outer wall of the cleaning ring (408).

2. The natural gas pipeline cleaning device according to claim 1, characterized in that: The intermediate fixing structure (1) includes a mounting ring (101) and an electric push rod (110). The inner walls of the mounting ring (101) are provided with first connecting blocks (102) on both sides. The inner walls of the first connecting blocks (102) are provided with hydraulic push rods (103). The outer walls of the mounting ring (101) are provided with first side plates (104). The number of first side plates (104) is set to multiple.

3. A natural gas pipeline cleaning device according to claim 2, characterized in that: The first side plate (104) is provided with mounting brackets (105) at the top and bottom, and positioning rings (106) are provided between the plurality of mounting brackets (105).

4. A natural gas pipeline cleaning device according to claim 2, characterized in that: The outer wall of the first side plate (104) is provided with a connecting ring (107), and an auxiliary groove (108) is provided on the outer side of the connecting ring (107), and a plurality of sliding grooves (109) are provided inside the auxiliary groove (108).

5. A natural gas pipeline cleaning device according to claim 2, characterized in that: The electric push rod (110) is disposed on the outer wall of the mounting ring (101). The output end of the electric push rod (110) is provided with a slide rod (111). The slide rod (111) is slidably connected to the inner wall of the slide groove (109). One end of the slide rod (111) is provided with a support ring (112). One end of the support ring (112) is provided with an anti-slip ring (113).

6. A natural gas pipeline cleaning device according to claim 1, characterized in that: The movable tube structure (2) includes a movable tube body (201), and a second connecting block (202) is provided on both sides of the outer wall of the movable tube body (201). The second connecting block (202) is connected to the hydraulic push rod (103). A first pin hole (203) is opened on both sides of the top and bottom of the movable tube body (201). A water tank (204) is opened inside the movable tube body (201).

7. A natural gas pipeline cleaning device according to claim 6, characterized in that: The outer walls at both ends of the moving tube body (201) are provided with second side plates (205), and a servo motor (206) is provided at one end of the second side plate (205). The output end of the servo motor (206) is provided with a drive gear (207), and the drive gear (207) meshes with the gear ring (405).

8. A natural gas pipeline cleaning device according to claim 1, characterized in that: The installation structure (3) includes a positioning ring (301), a positioning tube (302) is provided in the middle of the positioning ring (301), the inner wall of the positioning ring (301) is in contact with the outer wall of the moving tube body (201), and a second pin hole (303) is provided on both sides inside the positioning ring (301), and a pin is provided between the second pin hole (303) and the first pin hole (203).

9. A natural gas pipeline cleaning device according to claim 8, characterized in that: The outer wall of the positioning ring (301) is provided with a placement groove (304), and the inner wall of the placement groove (304) is rotatably connected to the positioning hole (402).

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