Rust removal device for hydrogen conveying pipeline

Abstract

The utility model relates to a derusting device for a hydrogen conveying pipeline, which comprises a mounting arc frame, spraying components mounted on the left and right parts of the mounting arc frame, a driving motor mounted on the rear side of the middle of the mounting arc frame, a gear connected to an output shaft of the driving motor, and a polishing roller rotatably connected between the front and rear sides of the mounting arc frame. The front side and the rear side of the polishing roller are connected with gears, the front side and the rear side of the mounting arc frame are rotationally connected with rotating shafts, the outer sides of the rotating shafts are connected with gears, the left gear and the right gear which are adjacent are meshed, and the gear on the upper side is meshed with the gear in the middle. The driving motor drives the gear, the rotating shaft and the polishing roller to rotate successively, the push rod is used for pushing the device to move on the surface of the hydrogen conveying pipeline, the stress direction of the push rod is opposite to the rotating direction of the polishing roller, so that the polishing roller removes substances generated after a rust removal reaction, and the rust removal device is small in size, high in portability and convenient to use. Local derusting operation can be flexibly carried out, so that derusting operation on the outer wall of the hydrogen conveying pipeline is more convenient.

Description

Technical Field

[0001] The utility model relates to the field of hydrogen transmission pipelines, in particular to a rust removal device for hydrogen transmission pipelines. Background Art

[0002] Hydrogen pipelines are dedicated pipelines used to transport hydrogen, transporting hydrogen from production sites to consumption sites or storage facilities. Since hydrogen pipelines are exposed to air or soil for a long time, the outer walls of the pipelines may be corroded by the atmosphere and soil. The atmosphere or soil reacts with the metal on the outer wall of the hydrogen pipeline, causing rust. Rust will affect the service life of the pipeline and pose certain safety hazards. The outer wall of the hydrogen pipeline needs to be derusted. The existing hydrogen pipeline rust removal device is large in size and cannot flexibly cope with the rust removal operation of local rust. It is also inconvenient to transport and has limited use.

[0003] In view of the above problems, a rust removal device for hydrogen transmission pipelines is now developed. Utility Model Content

[0004] In order to overcome the shortcomings of existing hydrogen pipeline rust removal devices, such as being large in size, not being able to flexibly cope with local rust removal operations, being inconvenient to transport, and having limited use, the utility model provides a hydrogen pipeline rust removal device.

[0005] The technical solution of the utility model is:

[0006] A rust removal device for a hydrogen transmission pipeline includes an installation arc frame, wherein spray assemblies are installed on the left and right parts of the installation arc frame, a drive motor is installed on the rear side of the middle part of the installation arc frame, and a gear is connected to the output shaft of the drive motor. Five grinding rollers are rotatably connected between the front and rear sides of the installation arc frame, and the front and rear sides of the grinding rollers are also connected to gears. Four rotating shafts are rotatably connected to the front and rear sides of the installation arc frame, and gears are also connected to the outsides of the rotating shafts. The gears adjacent to the left and right are meshed with each other, and the gears on the upper side are meshed with the gears in the middle. A protective frame for protecting the grinding rollers is installed on the upper part of the installation arc frame, and push rods are installed on the front and rear sides of the protective frame.

[0007] Furthermore, it also includes a mounting arc plate, and the left and right parts of the mounting arc frame are connected to the front-back symmetrical mounting arc plates, and the front-back symmetrical mounting arc plates are slidably connected to the mounting frames, and the mounting frames are rotatably connected to 4 rotating rollers, and the mounting arc plates are each provided with 2 threaded holes, and the mounting arc plates are rotatably connected to threaded pins, and the threaded pins are threadedly connected to the adjacent mounting frames.

[0008] Furthermore, the grinding rollers are each provided with a bump.

[0009] Furthermore, the front and rear adjacent rotating shafts are staggered with the adjacent grinding rollers.

[0010] Furthermore, the threaded pins are all provided with power-assisting blocks.

[0011] Furthermore, limit blocks are provided on both the left and right sides of the installation frame.

[0012] By adopting the above technical solution, the beneficial effects of the utility model are:

[0013] The utility model drives the gear, the rotating shaft and the grinding roller to rotate successively through a driving motor, and uses a push rod to push the device to move on the surface of the hydrogen pipeline. The force direction of the push rod is opposite to the rotation direction of the grinding roller, so that the grinding roller removes the material after the rust removal reaction. The rotating roller makes the movement of the device more labor-saving. The rust removal device is small in size and has high portability. It can flexibly perform local rust removal operations, making the rust removal operation on the outer wall of the hydrogen pipeline more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the first partial three-dimensional structure of the utility model.

[0016] Figure 3 This is a schematic diagram of the second partial three-dimensional structure of the utility model.

[0017] Figure 4 This is a schematic diagram of the third partial three-dimensional structure of the utility model.

[0018] The names and serial numbers of the parts in the figure are: 1. Mounting arc frame, 2. Spraying assembly, 3. Driving motor, 4. Gear, 5. Grinding roller, 6. Rotating shaft, 7. Mounting arc plate, 8. Mounting frame, 9. Rotating roller, 10. Threaded pin, 11. Threaded hole, 12. Protective frame, 13. Push rod. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0020] A rust removal device for a hydrogen pipeline, such as Figures 1-4As shown, it includes an arc frame 1, spraying components 2 are installed on the left and right parts of the arc frame 1, a driving motor 3 is installed on the rear side of the middle part of the arc frame 1, and a gear 4 is connected to the output shaft of the driving motor 3. Five grinding rollers 5 are rotatably connected between the front and rear sides of the arc frame 1, and the grinding rollers 5 are provided with bumps. The front and rear sides of the grinding rollers 5 are also connected to gears 4. The front and rear sides of the arc frame 1 are rotatably connected to four rotating shafts 6. The front and rear adjacent rotating shafts 6 are staggered with the adjacent grinding rollers 5. The outer sides of the rotating shafts 6 are also connected to gears 4. The gears 4 adjacent to the left and right are meshed with each other, and the upper gear 4 is engaged with the gear in the middle. 4 are meshed, the left and right parts of the mounting arc frame 1 are connected with the front and rear symmetrical mounting arc plates 7, the front and rear symmetrical mounting arc plates 7 are slidably connected with a mounting frame 8, the left and right sides of the mounting frame 8 are provided with limit blocks, the mounting frame 8 is rotatably connected with 4 rotating rollers 9, the mounting arc plates 7 are provided with 2 threaded holes 11, the mounting arc plates 7 are rotatably connected with threaded pins 10, the threaded pins 10 are threadedly connected to the adjacent mounting frames 8, the threaded pins 10 are provided with power blocks, the upper part of the mounting arc frame 1 is installed with a protective frame 12 for protecting the grinding roller 5, and the front and rear sides of the protective frame 12 are installed with push rods 13.

[0021] It should be noted that the hydrogen pipeline is a special pipeline for transporting hydrogen, which transports hydrogen from the production site to the consumption site or storage facility. Since the hydrogen pipeline is exposed to the air or soil for a long time, the outer wall of the hydrogen pipeline may be corroded by the atmosphere and soil. The atmosphere or soil reacts with the metal on the outer wall of the hydrogen pipeline to cause rust. Rust will affect the service life of the pipeline and there are certain safety hazards. The outer wall of the hydrogen pipeline needs to be rust-removed. After the hydrogen in the hydrogen pipeline is discharged, the arc frame 1 is installed to fit the outer wall of the hydrogen pipeline, and then the spray component 2 is turned on. The spray component 2 sprays the rust remover on the rusted outer wall of the pipeline, and the rust remover reacts with the rust. Then the drive motor 3 is turned on, and the output shaft of the drive motor 3 rotates to drive the upper gear 4 to rotate, and then drives the remaining gears 4, the rotating shaft 6 and the grinding roller 5 to rotate in succession. The protective frame 12 is connected to the drive motor 3, the gear 4, the rotating shaft 6 and the grinding roller 5. Protection is provided to prevent accidental injury to the operator during operation, which is beneficial to improving the safety of the device during operation. At the same time, the push rod 13 is used to push the device to move on the surface of the hydrogen pipeline. The force direction of the push rod 13 is opposite to the rotation direction of the grinding roller 5, so that the grinding roller 5 removes the material after the rust removal reaction, thereby driving the rotating roller 9 to rotate. The rotating roller 9 will make the movement of the device more labor-saving. The rust removal device is small in size and has high portability. It can flexibly perform local rust removal operations, making the rust removal operation on the outer wall of the hydrogen pipeline more convenient. In order to make the device fit better with the surface of the hydrogen pipeline, the threaded pin 10 can be removed and the mounting frame 8 can be slid outward until the mounting frame 8 is slid to the corresponding position of the other threaded hole 11, and the threaded pin 10 can be used to lock the mounting frame 8 and the mounting arc plate 7 again, thereby extending the overall enclosure range of the device, thereby enhancing the stability of the device during the rust removal process.

[0022] While the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art, having benefit of this disclosure, will appreciate that various other embodiments can be devised without departing from the scope of the invention. Accordingly, the scope of the invention should be limited only by the claims appended hereto.

Claims

1. A rust removal device for a hydrogen pipeline, characterized in that: The invention comprises an arc frame (1), wherein both the left and right parts of the arc frame (1) are provided with a spraying assembly (2), a driving motor (3) is provided on the rear side of the middle part of the arc frame (1), a gear (4) is connected to the output shaft of the driving motor (3), five grinding rollers (5) are rotatably connected between the front and rear sides of the arc frame (1), the front and rear sides of the grinding rollers (5) are also connected to gears (4), the front and rear sides of the arc frame (1) are rotatably connected to four rotating shafts (6), the outer sides of the rotating shafts (6) are also connected to gears (4), the gears (4) adjacent to the left and right are meshed with each other, the gears (4) on the upper side are meshed with the gears (4) in the middle, a protective frame (12) for protecting the grinding rollers (5) is provided on the upper part of the arc frame (1), and push rods (13) are provided on the front and rear sides of the protective frame (12).

2. A rust removal device for a hydrogen pipeline according to claim 1, characterized in that: The invention also includes a mounting arc plate (7), wherein the left and right parts of the mounting arc frame (1) are both connected to the mounting arc plates (7) which are symmetrical in front and back, and the mounting frames (8) are both slidably connected between the mounting arc plates (7) which are symmetrical in front and back, and the mounting frames (8) are both rotatably connected to four rotating rollers (9), and the mounting arc plates (7) are each provided with two threaded holes (11), and the mounting arc plates (7) are both rotatably connected to threaded pins (10), and the threaded pins (10) are both threadedly connected to the adjacent mounting frames (8).

3. A rust removal device for a hydrogen pipeline according to claim 2, characterized in that: The grinding rollers (5) are each provided with a bump.

4. A rust removal device for a hydrogen pipeline according to claim 1, characterized in that: The front and rear adjacent rotating shafts (6) are all arranged in a staggered manner with respect to the adjacent grinding rollers (5).

5. The rust removal device for a hydrogen pipeline according to claim 2, characterized in that: The threaded pins (10) are each provided with a power-assisting block.

6. A rust removal device for a hydrogen pipeline according to claim 2, characterized in that: Limit blocks are provided on both the left and right sides of the installation frame (8).

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