Auxiliary device for pipeline repair welding

Abstract

The utility model relates to a pipeline repair welding auxiliary device, and relates to the technical field of pipeline maintenance. The repair welding device comprises an upper pipe clamp and a lower pipe clamp, the upper pipe clamp and the lower pipe clamp are combined and arranged on the peripheral wall of a pipeline to be subjected to repair welding in a sleeving mode, a first universal ball damping ball head is arranged below the lower pipe clamp, a lead screw is arranged at the end of the first universal ball damping ball head, and a repair welding pillow block is arranged at the tail end of the lead screw. The repair welding pillow block abuts against the gap of the pipeline to be subjected to repair welding. The pipeline repair welding method has the effects of improving the pipeline repair welding efficiency and the construction safety.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline repair, and in particular to a pipeline repair welding auxiliary device. Background Art

[0002] Pipeline repair is an important measure to maintain and restore the normal operation of transportation pipelines and their equipment. In traditional pipeline repair work, the common practice is to repair cracks or connection problems by welding the pipeline joints through electric welding. However, this traditional repair welding method has the following problems: difficult alignment: Since pipelines are usually located in narrow or inaccessible spaces, it is very difficult to accurately locate the welding position, resulting in low accuracy during the repair welding process; multi-person cooperation operation: The traditional repair welding process requires multi-person cooperation. One person is responsible for fixing the repair block at the crack and applying an external force, while others perform the electric welding operation. This operation method is inefficient and prone to operation errors; safety risks: During the repair welding process, the gas or liquid pressure inside the pipeline may increase the operation difficulty and also increase the safety risks for the operators. If the repair welding is not perfect, it may lead to gas or liquid leakage, causing safety accidents; operation is cumbersome: The traditional repair welding method requires multiple adjustments of the position of the repair block and the application of an external force to ensure that the repair block fits tightly with the crack. This process is cumbersome and prone to operation errors. Based on the above defects, the present application provides a pipeline repair welding auxiliary device to solve the above problems. Summary of the Utility Model

[0003] In order to improve the welding efficiency and construction safety during the repair welding of pipeline cracks, the present application provides a pipeline repair welding auxiliary device.

[0004] The pipeline repair welding auxiliary device provided by the present application adopts the following technical solutions:

[0005] A pipeline repair welding auxiliary device includes an upper pipe clamp and a lower pipe clamp. The upper pipe clamp and the lower pipe clamp are combined and sleeved on the peripheral wall of the pipeline to be repaired. A first universal ball damping ball head is arranged below the lower pipe clamp. A lead screw is arranged at the end of the first universal ball damping ball head. A repair welding pillow block is arranged at the end of the lead screw. The repair welding pillow block abuts against the gap of the pipeline to be repaired.

[0006] By adopting the above technical solutions, when it is necessary to repair weld the pipeline, the upper pipe clamp and the lower pipe clamp are combined and installed on the peripheral wall of the pipeline. The first universal ball damping ball head is connected to the lower pipe clamp. The angle of the lead screw and the repair welding pillow block can be adjusted through the first universal ball damping ball head, so that the repair welding pillow block fits the crack of the pipeline, which is convenient for the staff to carry out the repair welding work. The device of the present application can fix and adjust the repair welding pillow block, realizing the accurate positioning of the welding repair block and the application of a uniform external force, effectively improving the repair welding efficiency.

[0007] Optionally, a nut is provided at the end of the first universal ball damping ball head, the lead screw passes through the nut, and the lead screw is threadedly connected to the nut.

[0008] By adopting the above technical solution, on the one hand, the nut can improve the connection stability between the lead screw and the first universal ball damping ball head, and on the other hand, it can flexibly adjust the positions of the lead screw and the repair welding pillow block, so that the repair welding pillow block can be closer to the pipeline to improve the repair welding effect.

[0009] Optionally, a second universal ball damping ball head is provided between the lead screw and the repair welding pillow block.

[0010] By adopting the above technical solution, the setting of the second universal ball damping ball head can better adjust the angle of the repair welding pillow block, so that the repair welding pillow block can better fit the pipeline crack, thereby improving the subsequent repair welding effect. The second universal ball damping ball head effectively improves the adjustability and stability of the device of the present application.

[0011] Optionally, an operation handle is provided at one end of the lead screw away from the second universal ball damping ball head.

[0012] By adopting the above technical solution, setting the operation handle facilitates the rotation of the lead screw, reduces the operation difficulty, and improves the convenience of the device of the present application during use.

[0013] Optionally, a cavity is formed in the repair welding pillow block, the cavity communicates with a ball valve, and the outlet of the ball valve is connected to an exhaust pipe.

[0014] By adopting the above technical solution, the ball valve and the exhaust pipe are used to timely discharge the gas or liquid in the pipeline during the repair welding process, ensuring the safety of the construction personnel. Considering the discharge problem of gas or liquid during the repair welding process, it effectively reduces potential safety hazards and improves the safety of the construction environment.

[0015] Optionally, a screw is provided between the upper pipe clamp and the lower pipe clamp, and the screw is used to fix the upper pipe clamp and the lower pipe clamp to the circumferential wall of the pipeline to be repaired.

[0016] By adopting the above technical solution, connecting the upper pipe clamp and the lower pipe clamp with screws is fast and convenient, which can effectively save the installation time of the device of the present application and has high applicability and convenience.

[0017] Optionally, the first universal ball damping ball head is threadedly connected to the lower pipe clamp.

[0018] By adopting the above technical solution, threading the first universal ball damping ball head to the lower pipe clamp facilitates the disassembly between the two. On the one hand, it facilitates the disassembly of the device of the present application when not in use, reduces the overall occupied space, and is convenient for storage. On the other hand, it improves the convenience of part replacement.

[0019] Optionally, the repair welding pillow block is arc-shaped, and the arc surface of the repair welding pillow block is arranged in contact with the peripheral wall of the pipeline to be repair welded.

[0020] By adopting the above technical solution, setting the repair welding pillow block to be arc-shaped can make the repair welding pillow block fit more closely with the peripheral wall of the pipeline to be repair welded, so as to reduce the gap between the two, thereby effectively improving the repair welding effect.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. The device of the present application can fix and adjust the repair welding pillow block, realizing the accurate positioning of the welding repair block and applying uniform external force, effectively improving the repair welding efficiency;

[0023] 2. Through the reasonable design of the exhaust pipe, the present application can timely discharge the gas or liquid in the pipeline, reducing the safety risk during the repair welding process and ensuring the safety of construction personnel;

[0024] 3. By setting the first universal ball damping ball head and the second universal ball damping ball head, the device of the present application has good adjustability and stability, can be applied to the repair welding work of pipelines in different scenarios, and has strong versatility and applicability. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of a pipeline repair welding auxiliary device in an embodiment of the present application.

[0026] Figure 2 is a cross-sectional view of the pipeline repair welding auxiliary device in an embodiment of the present application.

[0027] Description of the reference numerals: 1. upper pipe clamp; 2. lower pipe clamp; 3. first universal ball damping ball head; 4. lead screw; 5. repair welding pillow block; 6. nut; 7. second universal ball damping ball head; 8. operation handle; 9. cavity; 10. ball valve; 11. exhaust pipe; 12. screw. Detailed Description of the Embodiment

[0028] The following is a further detailed description of the present application in conjunction with the attached Figure 1-2 drawings.

[0029] The embodiment of the present application discloses a pipeline repair welding auxiliary device. Refer to Figure 1, including an upper pipe clamp 1 and a lower pipe clamp 2. Both the upper pipe clamp 1 and the lower pipe clamp 2 are semi-circular rings, and the two are combined and sleeved on the peripheral wall of the pipeline to be repaired by welding. The specific dimensions of the upper pipe clamp 1 and the lower pipe clamp 2 need to be made according to the actual dimensions of the pipeline to be repaired by welding. A screw 12 is arranged between the upper pipe clamp 1 and the lower pipe clamp 2 to fixedly connect the upper pipe clamp 1 and the lower pipe clamp 2. At the same time, using the screw 12 to connect the upper pipe clamp 1 and the lower pipe clamp 2 facilitates the quick installation and disassembly of the upper pipe clamp 1 and the lower pipe clamp 2, effectively improving the convenience of the device of the present application during use.

[0030] Refer to Figure 1 , a first universal ball damping ball head 3 is threadedly connected to the bottom of the lower pipe clamp 2. The lower pipe clamp 2 and the first universal ball damping ball head 3 are threadedly connected, which is convenient for local replacement of parts when the parts are damaged, so that the whole does not need to be replaced, saving costs and effectively improving economic benefits. At the same time, using threaded connection facilitates the quick installation or disassembly between the first universal ball damping ball head 3 and the lower pipe clamp 2, improving the assembly convenience of the pipeline repair welding auxiliary device of the present application. A nut 6 is arranged at the end of the first universal ball damping ball head 3, and a lead screw 4 is threadedly connected inside the nut 6. An operating handle 8 is arranged at the end of the lead screw 4, which is convenient for the staff to rotate the lead screw 4.

[0031] Refer to Figure 1 , a second universal ball damping ball head 7 is arranged at the end of the lead screw 4 away from the operating handle 8, and a repair welding pillow block 5 is arranged at the end of the second universal ball damping ball head 7. In this embodiment, the repair welding pillow block 5 is arc-shaped, and the arc surface of the repair welding pillow block 5 fits the peripheral wall of the pipeline, and the repair welding pillow block 5 is used to block the crack of the pipeline for subsequent welding; under the action of the first universal ball damping ball head 3 and the second universal ball damping ball head 7, both the lead screw 4 and the repair welding pillow block 5 can be adjusted greatly. Therefore, the pipeline repair welding auxiliary device of the present application has good adjustability and stability, so that the repair welding pillow block 5 can better fit the pipeline crack, thereby effectively improving the repair welding effect.

[0032] Refer to Figure 1 , a cavity 9 is opened inside the repair welding pillow block 5, a ball valve 10 is arranged at the outlet of the cavity 9, and the output end of the ball valve 10 is communicated with an exhaust pipe 11 to discharge the gas and liquid in the pipeline during the repair welding process to improve the safety during the repair welding construction process and reduce risks.

[0033] The implementation principle of an auxiliary device for pipe repair welding in an embodiment of this application is as follows: When pipe repair welding is required, the upper pipe clamp 1 and the lower pipe clamp 2 are assembled and installed on the circumferential wall of the pipe. The first universal ball damping ball head 3 is connected to the lower pipe clamp 2. The angle of the lead screw 4 and the repair welding pillow block 5 can be adjusted through the first universal ball damping ball head 3 and the second universal ball damping ball head 7, so that the repair welding pillow block 5 fits the crack of the pipe, which is convenient for the staff to carry out the repair welding work. During the welding process, the gas or liquid in the pipe can be discharged in time through the ball valve 10 and the exhaust pipe 11, ensuring the safety during the construction process; the device of this application can fix and adjust the repair welding pillow block 5, realizing the accurate positioning of the welding repair block and applying uniform external force, effectively improving the repair welding efficiency.

[0034] The above are all preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An auxiliary device for pipe repair welding, characterized in that: It includes an upper pipe clamp and a lower pipe clamp. The upper pipe clamp and the lower pipe clamp are combined and sleeved on the peripheral wall of the pipeline to be repaired by welding. A first universal ball damping ball head is arranged below the lower pipe clamp. A lead screw is arranged at the end of the first universal ball damping ball head. A repair welding pillow block is arranged at the end of the lead screw. The repair welding pillow block abuts against the gap of the pipeline to be repaired by welding.

2. The auxiliary device for pipeline repair welding according to claim 1, characterized in that: A nut is arranged at the end of the first universal ball damping ball head. The lead screw passes through the nut, and the lead screw is in threaded connection with the nut.

3. An auxiliary device for pipe repair welding according to claim 1, characterized in that: A second universal ball damping ball head is arranged between the lead screw and the repair welding pillow block.

4. An auxiliary device for pipeline repair welding according to claim 3, characterized in that: An operation handle is arranged at one end of the lead screw away from the second universal ball damping ball head.

5. The auxiliary device for pipe repair welding according to claim 1, wherein: A cavity is formed in the repair welding pillow block. The cavity communicates with a ball valve, and the outlet of the ball valve is connected with an exhaust pipe.

6. The auxiliary device for pipe repair welding according to claim 1, characterized in that: A screw is arranged between the upper pipe clamp and the lower pipe clamp. The screw is used to fix the upper pipe clamp and the lower pipe clamp on the peripheral wall of the pipeline to be repaired by welding.

7. An auxiliary device for pipe repair welding according to claim 1, characterized in that: The first universal ball damping ball head is in threaded connection with the lower pipe clamp.

8. An auxiliary device for pipe repair welding according to claim 1, characterized in that: The repair welding pillow block is arc-shaped, and the arc surface of the repair welding pillow block is arranged in fit with the peripheral wall of the pipeline to be repaired by welding.

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