A pig for a hydrogen pipeline
By combining a water pump and a cleaning brush with a crushing ring, the problem of traditional hydrogen pipeline cleaning devices being unable to clean impurities from the inner wall has been solved, achieving efficient cleaning and stable operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN CHENGDU JINDUN OIL & GAS PIPING INSTALLATION ENG CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional hydrogen pipeline cleaning devices are ineffective at cleaning impurities adhering to the inner wall of the pipeline, and the limited cleaning methods lead to a decline in pipeline performance.
A water pump is used in conjunction with a cleaning brush to flush the inner wall of the pipe, and a crushing ring is used to break up large pieces of residue. Through the coordinated work of the brush and the crushing ring, various pollutants are removed.
It improves the cleaning efficiency of hydrogen pipelines, effectively removing contaminants of different types and hardness, ensuring the safe and efficient operation of the pipelines.
Smart Images

Figure CN224405986U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline cleaning devices, and in particular to a pipeline cleaning device for hydrogen transportation pipelines. Background Technology
[0002] With the increasing global demand for clean energy, hydrogen energy, as an important zero-carbon energy carrier, is seeing its infrastructure construction, especially the construction of long-distance hydrogen pipelines, become increasingly important. However, hydrogen pipelines face problems of internal pollution and performance degradation during long-term operation. Against this background, in order to ensure the safe, efficient, and long-term stable operation of hydrogen pipelines, it is essential to develop a pipeline cleaning device specifically designed for hydrogen. The pipeline cleaning device for hydrogen pipelines is an integrated system specifically designed to maintain the cleanliness, safety, and efficient operation of hydrogen pipelines. Its core function is to move the cleaning device inside the pipeline to remove impurities, detect pipeline defects, dry the pipeline, or separate the medium.
[0003] Traditional hydrogen pipeline cleaning devices have a relatively simple cleaning method, which can usually only remove some dust and is not convenient for effectively cleaning impurities adhering to the inner wall of the pipeline.
[0004] Therefore, those skilled in the art have provided a pipeline cleaning device for hydrogen transportation pipelines to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a pipeline cleaning device for hydrogen transportation pipelines. A water pump, in conjunction with a cleaning brush, effectively removes deposits and soft dirt from the inner wall of the pipeline, while a crushing device handles hard debris. Its crushing ring is specifically designed to break up large pieces of residue or scale. The brush and crushing ring work together to remove various contaminants more quickly, improving cleaning efficiency.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A pipeline cleaning device for hydrogen transportation pipelines includes a pipeline and a base. A cleaning mechanism is provided on the inner wall of the pipeline, and a crushing mechanism is provided on the other side of the cleaning mechanism. The cleaning mechanism includes a connecting plate connected to one side of the pipeline. A sealing plate is fixedly connected to the other side of the connecting plate. Connecting rods are provided on both sides of the inner wall of the sealing plate. Rubber pads are fixedly connected to the other sides of the two connecting rods. A water outlet box is fixedly connected to the other side of the rubber pads. A cleaning brush is provided on the other side of the water outlet box. Multiple water outlet pipes are evenly arranged on the outer wall of the water outlet box. A water pump is provided on one side of the upper end of the base. A connecting pipe is connected through the water inlet of the water pump. A water tank is connected through the lower part of the sliding connecting pipe. A corrugated pipe is connected through the water outlet of the water pump.
[0008] The above technical solution involves starting a water pump via an external controller to draw water from the tank into the outlet box through a connecting pipe. The water is then sprayed out through the outlet pipe to flush the inside of the pipe and moisten the cleaning brush. The moist cleaning brush effectively removes deposits and loose dirt from the inner wall of the pipe.
[0009] Furthermore, a connecting block is provided on the other side of the cleaning brush. A groove is provided on one side of the connecting block. A rotating column is rotatably connected to the middle of the other side of the connecting block. The rotating column passes through the connecting block to the outside of the connecting block and is fixedly connected to the connecting column. Multiple scrapers are fixedly connected to the outer wall of the connecting column. A crushing ring is fixedly connected to one end of the multiple scrapers away from the center of the connecting block. A first gear is fixedly connected to the outer wall of the other side of the rotating column. A servo motor is fixedly connected to the front end of one side of the connecting block. A second gear is fixedly connected to the output end of the servo motor.
[0010] The above technical solution involves using an external controller to start a servo motor that drives the second gear to rotate. Through gear transmission, the first gear and the rotating column rotate, and the connecting column rotates accordingly. This, in turn, drives the scraper and the crushing ring to rotate, thereby crushing and removing larger impurities and preventing them from causing obstruction in the pipeline.
[0011] Furthermore, a flange is provided on the other side of the pipe;
[0012] Using the above technical solution, after the pipeline cleaning process is completed, the impurities pushed to the other end of the pipeline by the cleaning device can be collected and removed by opening the flange.
[0013] Furthermore, one side of each of the two connecting rods extends through the sealing plate and the connecting plate to the outside of the connecting plate;
[0014] The above technical solution prevents accidental displacement during the pigging process and improves the stability of the entire device.
[0015] Furthermore, the other side of the water outlet pipe extends through the connecting plate, sealing plate, and rubber gasket into the interior of the water outlet box;
[0016] The above technical solutions ensure the equipment's airtightness, preventing water leakage to the outside of the device or non-working areas, thus guaranteeing the efficiency of the pigging process and the integrity of the structure.
[0017] Furthermore, the first gear meshes with the second gear;
[0018] The above technical solution achieves a change in power transmission or motion mode, enabling the force of the second gear's rotation to be transmitted to the first gear.
[0019] Furthermore, one side of the rotating column is rotatably connected to the other side of the cleaning brush;
[0020] The above technical solution can directly transmit the rotational motion of the rotating column to the cleaning brush, which enables the brush to rotate actively.
[0021] Furthermore, multiple support blocks are evenly fixedly connected to the upper end of the base;
[0022] The above technical solutions help to accurately place the pipeline in the predetermined location, facilitating the installation and entry of subsequent pipeline cleaning equipment.
[0023] This utility model has the following beneficial effects:
[0024] 1. This utility model proposes a pipeline cleaning device for hydrogen transportation pipelines. Through the cooperation of a water pump and a cleaning brush, the inside of the pipeline can be cleaned. The cleaning brush mainly removes the attached substances and loose dirt from the inner wall of the pipeline. The crushing device crushes the debris in the pipeline. The crushing ring is specifically used to break up and remove larger blocky residues or scale. By working together with the brush cleaning and crushing ring cleaning, various pollutants can be removed more quickly, thereby improving the overall cleaning efficiency. It can also deal with pollutants of different types and hardness, thus improving the comprehensiveness of the cleaning. Attached Figure Description
[0025] Figure 1 This is an isometric view of a pipeline cleaning device for a hydrogen transportation pipeline proposed in this utility model;
[0026] Figure 2 This is a schematic diagram of the structure of a pipeline cleaning device for a hydrogen transportation pipeline proposed in this utility model;
[0027] Figure 3 This is a partial side sectional view of a pipeline cleaning device for hydrogen transportation proposed in this utility model;
[0028] Figure 4 This is a partial exploded view of a pipeline cleaning device for hydrogen transportation proposed in this utility model.
[0029] Explanation of reference numerals in the attached figures:
[0030] 1. Cleaning mechanism; 101. Connecting plate; 102. Sealing plate; 103. Connecting rod; 104. Rubber pad; 105. Water outlet box; 106. Cleaning brush; 107. Water outlet pipe; 108. Water pump; 109. Connecting pipe; 110. Water tank; 111. Corrugated pipe;
[0031] 2. Crushing mechanism; 201. Connecting block; 202. Groove; 203. Rotating column; 204. Connecting column; 205. Scraper; 206. Crushing ring; 207. First gear; 208. Servo motor; 209. Second gear;
[0032] 3. Pipes; 4. Flanges; 5. Base; 6. Support blocks. Detailed Implementation
[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0034] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides a specific embodiment: a cleaning device for a hydrogen pipeline, including a pipeline 3 and a base 5. A cleaning mechanism 1 is provided on the inner wall of the pipeline 3, and a crushing mechanism 2 is provided on the other side of the cleaning mechanism 1. The cleaning mechanism 1 includes a connecting plate 101, which is connected to one side of the pipeline 3. A sealing plate 102 is fixedly connected to the other side of the connecting plate 101. Connecting rods 103 are provided on both sides of the inner wall of the sealing plate 102. Rubber pads 104 are fixedly connected to the other side of the two connecting rods 103. A water outlet box 105 is fixedly connected to the other side of the rubber pad 104. A cleaning brush 106 is provided on the other side of the water outlet box 105. Multiple water outlet pipes 107 are evenly arranged on the outer wall of the water outlet box 105. A water pump 108 is provided on one side of the upper end of the base 5. A connecting pipe 109 is connected through the water inlet end of the water pump 108. A water tank 110 is connected through the lower part of the sliding connecting pipe 109. A corrugated pipe 111 is connected through the water outlet end of the water pump 108.
[0035] The water pump 108 is started by an external controller, which draws water from the water tank 110 into the water outlet box 105 through the connecting pipe 109. The water is then sprayed out through the water outlet pipe 107 to flush the inside of the pipe 3 and wet the cleaning brush 106. The wet cleaning brush 106 can effectively remove the attached substances and loose dirt from the inner wall of the pipe 3.
[0036] Reference Figure 3 and Figure 4A connecting block 201 is provided on the other side of the cleaning brush 106. A groove 202 is provided on one side of the connecting block 201. A rotating column 203 is rotatably connected to the middle of the other side of the connecting block 201. The rotating column 203 passes through the connecting block 201 and is fixedly connected to the outside of the connecting block 201 and to the connecting column 204. Multiple scrapers 205 are fixedly connected to the outer wall of the connecting column 204. A crushing ring 206 is fixedly connected to one end of the multiple scrapers 205 away from the center of the connecting block 201. A first gear 207 is fixedly connected to the outer wall of the other side of the rotating column 203. A servo motor 208 is fixedly connected to the front end of one side of the connecting block 201. A second gear 209 is fixedly connected to the output end of the servo motor 208. The servo motor 208 is started by an external controller to drive the second gear 209 to rotate. Through gear transmission, the first gear 207 and the rotating column 203 are driven to rotate. The connecting column 204 rotates accordingly, which in turn drives the scraper 205 and the crushing ring 206 to rotate, crushing and removing larger impurities and preventing them from causing obstruction in the pipe 3. A flange 4 is provided on the other side of the pipe 3.
[0037] After the cleaning process is completed, the impurities pushed to the other end of the pipe 3 by the cleaning device can be collected and removed by opening flange 4. One side of the two connecting rods 103 passes through the sealing plate 102 and connecting plate 101 to the outside of the connecting plate 101, preventing accidental displacement during the cleaning process and improving the stability of the entire device. The other side of the outlet pipe 107 passes through the connecting plate 101, sealing plate 102, and rubber gasket 104 to the inside of the outlet box 105, ensuring the equipment's sealing and preventing water leakage to the outside of the device or non-working areas, thus guaranteeing the efficiency and effectiveness of the cleaning process. The integrity of the structure is ensured by the meshing of the first gear 207 and the second gear 209, which realizes the change of power transmission or motion mode. The force of the rotation of the second gear 209 can be transmitted to the first gear 207. One side of the rotating column 203 is rotatably connected to the other side of the cleaning brush 106, which can directly transmit the rotational motion of the rotating column 203 to the cleaning brush 106, so that the brush can rotate actively. Multiple support blocks 6 are evenly fixedly connected to the upper end of the base 5, which helps to accurately place the pipe 3 in the predetermined position, and facilitates the subsequent installation of the cleaning device and entry into the pipe 3.
[0038] Working principle: First, the user places pipe 3 on the upper end of support block 6, moves pipe 3 to allow cleaning mechanism 1 and crushing mechanism 2 to enter pipe 3, then installs connecting plate 101 to pipe 3 with bolts. Next, connect air inlet pipe 3 to air pump, pressurize the space between sealing plate 102 and rubber pad 104, and use air pressure to push rubber pad 104 and the entire structure above it forward, making it tightly fit the inner wall of pipe 3. Then, the water pump 108 is started through external controller to send water from water tank 110 into water outlet box 105 through connecting pipe 109, and then sprayed out through water outlet pipe 107 to flush the inside of pipe 3 and wet the cleaning brush. 106. The moist cleaning brush 106 effectively removes deposits and loose dirt from the inner wall of the pipe 3. At the same time, the servo motor 208 is started by the external controller, which drives the second gear 209 to rotate. Through gear transmission, the first gear 207 and the rotating column 203 are driven to rotate, and the connecting column 204 rotates accordingly. This, in turn, drives the scraper 205 and the crushing ring 206 to rotate, crushing and removing larger impurities and preventing them from causing obstruction in the pipe 3. By working together with the brush cleaning and the crushing ring 206 cleaning, it can deal with contaminants of different types and hardness. The impurities are then pushed to the end of the pipe 3, and can be removed by opening the flange 4.
[0039] The following points should be noted in this article:
[0040] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.
[0041] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.
[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A pipeline cleaning device for a hydrogen transportation pipeline, comprising a pipeline (3) and a base (5), characterized in that: The inner wall of the pipe (3) is provided with a cleaning mechanism (1), and a crushing mechanism (2) is provided on the other side of the cleaning mechanism (1). The cleaning mechanism (1) includes a connecting plate (101), which is connected to one side of the pipe (3). A sealing plate (102) is fixedly connected to the other side of the connecting plate (101). Connecting rods (103) are provided on both sides of the inner wall of the sealing plate (102). Rubber pads (104) are fixedly connected to the other side of the two connecting rods (103). A water outlet box (105) is fixedly connected to the other side of the rubber pad (104). A cleaning brush (106) is provided on the other side of the water outlet box (105). Multiple water outlet pipes (107) are evenly arranged on the outer wall of the water outlet box (105). A water pump (108) is provided on one side of the upper end of the base (5). A connecting pipe (109) is connected through the water inlet end of the water pump (108). A water tank (110) is connected through the lower part of the sliding connecting pipe (109). A corrugated pipe (111) is connected through the water outlet end of the water pump (108).
2. The pipeline cleaning device for a hydrogen transportation pipeline according to claim 1, characterized in that: A connecting block (201) is provided on the other side of the cleaning brush (106). A groove (202) is provided on one side of the connecting block (201). A rotating column (203) is rotatably connected to the middle of the other side of the connecting block (201). The rotating column (203) passes through the connecting block (201) to the outside of the connecting block (201) and is fixedly connected to the connecting column (204). Multiple scrapers (205) are fixedly connected to the outer wall of the connecting column (204). A crushing ring (206) is fixedly connected to one end of the multiple scrapers (205) away from the center of the connecting block (201). A first gear (207) is fixedly connected to the outer wall of the other side of the rotating column (203). A servo motor (208) is fixedly connected to the front end of one side of the connecting block (201). A second gear (209) is fixedly connected to the output end of the servo motor (208).
3. A pipeline cleaning device for a hydrogen transportation pipeline according to claim 1, characterized in that: A flange (4) is provided on the other side of the pipe (3).
4. A pipeline cleaning device for a hydrogen transportation pipeline according to claim 1, characterized in that: The two connecting rods (103) extend through the sealing plate (102) and the connecting plate (101) to the outside of the connecting plate (101) on one side.
5. A pipeline cleaning device for a hydrogen transportation pipeline according to claim 1, characterized in that: The water outlet pipe (107) extends through the connecting plate (101), sealing plate (102), and rubber pad (104) to the inside of the water outlet box (105) on the other side.
6. A pipeline cleaning device for a hydrogen transportation pipeline according to claim 2, characterized in that: The first gear (207) meshes with the second gear (209).
7. A pipeline cleaning device for a hydrogen transportation pipeline according to claim 2, characterized in that: The rotating column (203) is rotatably connected to the other side of the cleaning brush (106) on one side.
8. A pipeline cleaning device for a hydrogen transportation pipeline according to claim 1, characterized in that: Multiple support blocks (6) are evenly fixedly connected to the upper end of the base (5).