Hydrogen pipeline welding installation device

Abstract

This utility model belongs to the field of hydrogen pipeline welding technology, and in particular to a welding and installation device for hydrogen pipelines. Addressing the problems of poor operational stability and difficulty in angle adjustment mentioned in the background technology, the following solution is proposed: a welding table, with a fixed arc-shaped positioning seat welded to one side of the top outer wall of the welding table, and a movable arc-shaped positioning seat provided on one side of the top outer wall of the welding table. Both the fixed and movable arc-shaped positioning seats have limit components on their top outer walls. The fixed and movable arc-shaped positioning seats form a double support point, and combined with the arc-shaped pressure plate and guide rod of the limit components, the pipe is vertically locked, preventing welding vibration displacement. The movable arc-shaped positioning seat achieves overall self-locking, preventing slippage. The arc-shaped guide groove and the column with a pointer work together to improve the flexibility of welding angle adjustment. The arc-shaped scale bar displays the tilt angle, enabling precise positioning of the welding angle.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen pipeline welding technology, and in particular to a hydrogen pipeline welding and installation device. Background Technology

[0002] Hydrogen transmission pipelines mainly consist of hydrogen transmission pipelines and hydrogen distribution pipelines. Hydrogen transmission pipelines are divided into two categories. One category is used for transporting hydrogen between equipment or within systems within a plant area, such as hydrogen transmission pipelines within enterprise plants, industrial hydrogen energy parks, hydrogen refueling stations, and vehicle-mounted hydrogen supply systems. These pipelines are characterized by high pressure and small diameter, and generally use pressure pipelines or instrument pipes. As the core facility for hydrogen energy transportation, the welding quality of hydrogen transmission pipelines directly affects the safe transportation of hydrogen.

[0003] Traditional welding mainly relies on manual hand-held operation, which has two major drawbacks: First, the operation is unstable, and the pipe is prone to displacement during welding, which can cause the weld to shift (especially for large-diameter pipes), requiring multiple welding repairs; second, the angle is difficult to adjust, and multiple people are needed to rotate the pipe when welding interfaces at different angles, which is inefficient and poses safety hazards. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a welding and installation device for hydrogen transportation pipelines, which overcomes the shortcomings of the prior art and effectively solves the problems of poor operational stability and difficulty in angle adjustment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A welding and installation device for a hydrogen pipeline includes a welding table. A fixed arc-shaped positioning seat is welded to one side of the top outer wall of the welding table, and a movable arc-shaped positioning seat is provided on one side of the top outer wall of the welding table. Limiting components are provided on the top outer walls of both the fixed arc-shaped positioning seat and the movable arc-shaped positioning seat.

[0007] The movable arc-shaped positioning seat has a column welded to its bottom outer wall, and a lower threaded sleeve welded to its bottom outer wall. A second lead screw is screwed onto the bottom inner wall of the lower threaded sleeve, and a connecting plate is welded to the outer wall of the second lead screw. Adjacent connecting rods are welded to the top outer wall of the connecting plate, and an anti-slip limiting ring is welded to the top outer wall of the connecting rod.

[0008] Preferably, the anti-slip limiting ring is tightly attached to the bottom outer wall of the welding table, and the anti-slip limiting ring is located outside the lower threaded sleeve.

[0009] Preferably, the outer wall of the top of the welding table is provided with an arc-shaped guide groove, and the column is slidably connected to the inner wall of the arc-shaped guide groove.

[0010] Preferably, the limiting component includes a U-shaped frame welded to the top outer wall of the fixed arc-shaped positioning seat and the movable arc-shaped positioning seat respectively, a first lead screw screwed to the top outer wall of the U-shaped frame, an arc-shaped lower pressure plate rotatably connected to the bottom outer wall of the first lead screw, and a guide rod welded to the top arc surface of the arc-shaped lower pressure plate, wherein the guide rod is slidably connected to the top outer wall of the U-shaped frame.

[0011] Preferably, an upper limiting piece is welded to the top of the outer wall of the column, and a pointer is welded to one side of the outer wall of the upper limiting piece. An arc-shaped scale bar is provided on the outer wall of the top of the welding table outside the arc-shaped guide groove, and the pointer points to one side of the arc-shaped scale bar.

[0012] Preferably, a handle is welded to the top of one side of the outer wall of the column, and the handle is located between the upper limiting piece and the movable arc-shaped positioning seat.

[0013] Preferably, a slag discharge port is provided on the other side of the top outer wall of the welding table, and hydrogen supply pipes are clamped and connected between the fixed arc-shaped positioning seat and the U-shaped frame and between the movable arc-shaped positioning seat and the U-shaped frame, and the connection of the two hydrogen supply pipes is located at the top of the slag discharge port.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The hydrogen pipeline welding installation device designed in this paper forms a double support point with a fixed arc-shaped positioning seat and a movable arc-shaped positioning seat. Combined with the arc-shaped lower pressure plate and guide rod of the limiting component, the pipeline is vertically locked, which can prevent welding vibration displacement. In addition, the anti-slip limiting ring is closely attached to the bottom surface of the welding table. The height of the lower threaded sleeve is adjusted by the second screw to achieve overall self-locking of the movable arc-shaped positioning seat and avoid slippage.

[0016] 2. The welding and installation device for hydrogen pipelines designed in this paper features an arc-shaped guide groove that works in conjunction with a column with a pointer, which improves the flexibility of welding angle adjustment. The arc-shaped scale bar displays the tilt angle, enabling precise positioning of the welding angle. Furthermore, the single-person manual operation of the movable arc-shaped positioning seat eliminates the need for multiple people to work together. Attached Figure Description

[0017] Figure 1 This utility model provides a schematic diagram of the overall structure of a welding and installation device for hydrogen transportation pipelines. Figure 1 ;

[0018] Figure 2 This utility model provides a schematic diagram of the overall structure of a welding and installation device for hydrogen transportation pipelines. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the movable arc-shaped positioning seat connection structure of a hydrogen pipeline welding and installation device proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the limiting component structure of a hydrogen pipeline welding and installation device proposed in this utility model.

[0021] In the diagram: 1. Welding table; 2. Fixed arc-shaped positioning seat; 3. Movable arc-shaped positioning seat; 4. Limiting assembly; 41. U-shaped frame; 42. First lead screw; 43. Arc-shaped lower pressure plate; 44. Guide rod; 5. Column; 6. Lower threaded sleeve; 7. Second lead screw; 8. Connecting plate; 9. Connecting rod; 10. Anti-slip limiting ring; 11. Arc-shaped guide groove; 12. Upper limiting piece; 13. Pointer; 14. Arc-shaped scale bar; 15. Handle; 16. Slag discharge port. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-4 Example 1: A welding and installation device for a hydrogen pipeline includes a welding table 1. A fixed arc-shaped positioning seat 2 is welded to one side of the top outer wall of the welding table 1, and a movable arc-shaped positioning seat 3 is provided on one side of the top outer wall of the welding table 1. Limiting components 4 are provided on the top outer walls of both the fixed arc-shaped positioning seat 2 and the movable arc-shaped positioning seat 3. The limiting components 4 include a U-shaped frame 41 welded to the top outer walls of the fixed arc-shaped positioning seat 2 and the movable arc-shaped positioning seat 3 respectively, and screwed to the top outer wall of the U-shaped frame 41. The first lead screw 42, the arc-shaped lower pressure plate 43 rotatably connected to the bottom outer wall of the first lead screw 42, and the guide rod 44 welded to the top arc surface of the arc-shaped lower pressure plate 43, and the guide rod 44 slidably connected to the top outer wall of the U-shaped frame 41, the other side of the top outer wall of the welding table 1 is provided with a slag discharge port 16, and hydrogen conveying pipes are clamped and connected between the fixed arc-shaped positioning seat 2 and the U-shaped frame 41 and between the movable arc-shaped positioning seat 3 and the U-shaped frame 41, and the connection of the two hydrogen conveying pipes is located at the top of the slag discharge port 16.

[0024] In this embodiment, the fixed arc-shaped positioning seat 2 and the movable arc-shaped positioning seat 3 are symmetrically arranged on both sides of the welding table 1. The limiting component 4 works as follows: First, the hydrogen pipeline is placed on the arc surface of the fixed arc-shaped positioning seat 2 and the movable arc-shaped positioning seat 3. Then, the first screw 42 is turned to push the lower arc-shaped pressure plate 43 down. The guide rod 44 slides along the inner wall of the U-shaped frame 41 to prevent deflection. The hydrogen pipeline is clamped between the lower arc-shaped pressure plate 43 and the fixed arc-shaped positioning seat 2 and the movable arc-shaped positioning seat 3, forming a multi-point force.

[0025] Example 2: A welding and installation device for a hydrogen pipeline. The movable arc-shaped positioning seat 3 has a column 5 welded to its bottom outer wall, and a lower threaded sleeve 6 welded to its bottom outer wall. A second lead screw 7 is screwed onto the bottom inner wall of the lower threaded sleeve 6, and a connecting plate 8 is welded to the outer wall of the second lead screw 7. Adjacent connecting rods 9 are welded to the top outer wall of the connecting plate 8, and an anti-slip limiting ring 10 is welded to the top outer wall of the connecting rod 9. An arc-shaped guide groove 11 is provided on the top outer wall of the welding table 1, and the column 5 is slidably connected to the inner wall of the arc-shaped guide groove 11.

[0026] The anti-slip limiting ring 10 is tightly attached to the bottom outer wall of the welding table 1, and the anti-slip limiting ring 10 is located outside the lower threaded sleeve 6.

[0027] The top of the outer wall of the column 5 is welded with an upper limiting piece 12, and a pointer 13 is welded to one side of the outer wall of the upper limiting piece 12. The top outer wall of the welding table 1 is provided with an arc-shaped scale bar 14 outside the arc-shaped guide groove 11, and the pointer 13 points to one side of the arc-shaped scale bar 14.

[0028] A handle 15 is welded to the top of one side of the outer wall of the column 5, and the handle 15 is located between the upper limiting piece 12 and the movable arc-shaped positioning seat 3.

[0029] In this embodiment, the angle of the movable arc-shaped positioning seat 3 is as follows: First, the column 5 is pulled along the arc-shaped guide groove 11 by the handle 15, and the pointer 13 points to the target angle value of the arc-shaped scale bar 14. Then, the second lead screw 7 is rotated so that the anti-slip limit ring 10 is tightly attached to the bottom surface of the welding table 1, increasing the friction to fix the column 5. The ends of the two hydrogen pipelines are connected above the slag discharge port 16, and the welding slag generated during the welding process is directly discharged through the slag discharge port 16.

[0030] Working principle:

[0031] Positioning of hydrogen pipelines: Place the two hydrogen pipelines to be welded on the fixed arc surface positioning seat 2 and the movable arc surface positioning seat 3 respectively, and then tighten the first screw 42 of the limiting component 4 to make the arc surface pressure plate 43 press the hydrogen pipelines.

[0032] Angle adjustment: Loosen the second lead screw 7, push the column 5 along the arc guide groove 11 through the handle 15, and lock the second lead screw 7 after aligning the pointer 13 and the arc scale bar 14 with the target welding angle.

[0033] Welding slag removal: Welding is carried out at the junction of the two hydrogen pipelines, and the molten slag falls automatically through the slag discharge port 16.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A welding and installation device for a hydrogen pipeline, comprising a welding table (1), characterized in that, A fixed arc-shaped positioning seat (2) is welded to one side of the top outer wall of the welding station (1), and a movable arc-shaped positioning seat (3) is provided on one side of the top outer wall of the welding station (1). Limiting components (4) are provided on the top outer walls of both the fixed arc-shaped positioning seat (2) and the movable arc-shaped positioning seat (3). The movable arc-shaped positioning seat (3) has a column (5) welded to its bottom outer wall, and a lower threaded sleeve (6) welded to its bottom outer wall. A second lead screw (7) is screwed onto the bottom inner wall of the lower threaded sleeve (6), and a connecting plate (8) is welded to the outer wall of the second lead screw (7). Adjacent connecting rods (9) are welded to the top outer wall of the connecting plate (8), and an anti-slip limiting ring (10) is welded to the top outer wall of the connecting rod (9).

2. The welding and installation device for a hydrogen pipeline according to claim 1, characterized in that, The anti-slip limiting ring (10) is tightly attached to the bottom outer wall of the welding table (1), and the anti-slip limiting ring (10) is located outside the lower threaded sleeve (6).

3. The welding and installation device for a hydrogen pipeline according to claim 1, characterized in that, The welding table (1) has an arc-shaped guide groove (11) on its top outer wall, and the column (5) is slidably connected to the inner wall of the arc-shaped guide groove (11).

4. The welding and installation device for a hydrogen pipeline according to claim 1, characterized in that, The limiting component (4) includes a U-shaped frame (41) welded to the top outer wall of the fixed arc-shaped positioning seat (2) and the movable arc-shaped positioning seat (3), a first lead screw (42) screwed to the top outer wall of the U-shaped frame (41), an arc-shaped lower pressure plate (43) rotatably connected to the bottom outer wall of the first lead screw (42), and a guide rod (44) welded to the top arc surface of the arc-shaped lower pressure plate (43), and the guide rod (44) is slidably connected to the top outer wall of the U-shaped frame (41).

5. The welding and installation device for a hydrogen pipeline according to claim 1, characterized in that, The top of the outer wall of the column (5) is welded with an upper limiting piece (12), and a pointer (13) is welded to one side of the outer wall of the upper limiting piece (12). The top outer wall of the welding table (1) is provided with an arc-shaped scale strip (14) outside the arc-shaped guide groove (11), and the pointer (13) points to one side of the arc-shaped scale strip (14).

6. The welding and installation device for a hydrogen pipeline according to claim 1, characterized in that, A handle (15) is welded to the top of one side of the outer wall of the column (5), and the handle (15) is located between the upper limiting piece (12) and the movable arc-shaped positioning seat (3).

7. The welding and installation device for a hydrogen pipeline according to claim 1, characterized in that, A slag discharge port (16) is provided on the other side of the top outer wall of the welding table (1). Hydrogen transport pipes are clamped and connected between the fixed arc surface positioning seat (2) and the U-shaped frame (41) and between the movable arc surface positioning seat (3) and the U-shaped frame (41), and the connection of the two hydrogen transport pipes is located at the top of the slag discharge port (16).

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