Non-welding type steel pipeline electric communication construction device

Abstract

The utility model discloses a non-welding type steel pipeline electric communication construction device which comprises a gas buried pipeline, a tapper and a test pile arranged on the ground, a test hole is formed in the outer wall of the gas buried pipeline, a special hoop is arranged on the outer wall of the gas buried pipeline, the special hoop is located on the outer side of the test hole, and the tapper is arranged on the test pile. The tapper is arranged and matched with the special clamp for use, so that an anti-corrosion layer can be polished, fixed-point tapping can be performed on the gas buried pipeline, and electric communication with the pipeline can be realized without welding operation; according to the invention, tedious processes, technical requirements, operation risks, personnel configuration and the like caused by welding operation, joint coating operation and the like are avoided, the construction efficiency is greatly improved, the special clamp can apply external force to fix a connection point, and the lead contact piece can be well attached to a metal substrate, so that the detection quality of corrosion parameters is ensured, and the detection cost is reduced. Meanwhile, a viscoelastic body anti-corrosion adhesive tape joint coating mode is adopted, safety and reliability are achieved, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of gas pipelines, in particular to a non-welded steel pipeline electrical connection construction device. Background Art

[0002] The efficient operation of urban natural gas pipeline networks is the key to ensuring urban natural gas transportation. Whether it operates safely or not is directly related to the public safety of the city. Corrosion and leakage have become the main risks affecting the safety of urban gas pipeline networks. The pipe-to-ground potential and the performance of the anti-corrosion layer are key indicators for evaluating corrosion risks. At present, the test of this parameter requires connecting the pipeline. If there is a test pile at the pipeline test location, the test pile can be connected to the pipeline. However, during the installation of the test pile, a wire electrically connected to the pipeline needs to be installed and led to the test pile. The conventional construction steps of the electrically connected wire are: first, the original anti-corrosion layer of the pipeline is polished to reveal the metal matrix, and then the test line is welded to the metal matrix of the pipeline, and finally the anti-corrosion layer is patched to achieve electrical connection with the pipeline.

[0003] However, the existing installation method requires grinding the anti-corrosion layer, welding wires, and patching damaged anti-corrosion layers. There are two main problems. First, the steps are too complicated and require carrying a large number of work tools and personal protective equipment, resulting in low operating efficiency. Second, the pipeline is severely damaged. The heat affected zone generated by welding will cause the performance of the anti-corrosion layer within a certain range of the welding point to deteriorate. A larger area of ​​the anti-corrosion layer needs to be ground, resulting in a larger patching area. Therefore, we need to propose a non-welded steel pipeline electrical connection construction device. Utility Model Content

[0004] The purpose of the utility model is to provide a non-welded steel pipeline electrical connection construction device, which aims to solve the problem that the test pile installation process in the prior art requires three process flows, namely grinding the anti-corrosion layer, welding the wire, and patching the damaged anti-corrosion layer. The construction process is cumbersome and the construction efficiency is low. At the same time, the pipeline is greatly damaged. The heat affected zone generated by welding will cause the performance of the anti-corrosion layer within a certain range of the welding point to deteriorate. It is necessary to grind out a large area of ​​the metal matrix, which also leads to a large patching area.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A non-welded steel pipeline electrical connection construction device comprises a buried gas pipeline, a hole opener and a test pile arranged on the ground, wherein a test hole is opened on the outer wall of the buried gas pipeline, a special clamp is arranged on the outer wall of the buried gas pipeline, the special clamp is located on the outside of the test hole, a fastening bolt is arranged on the special clamp, a wire is electrically connected to the test pile, one end of the wire is fixedly connected to a wire contact piece, and the wire contact piece is arranged inside the test hole.

[0007] Preferably, the special clamp comprises a clamping ring, and a rubber lining is fixedly bonded to the inner side of the clamping ring.

[0008] Preferably, a connecting portion is provided on one side of the clamping ring, the connecting portion and the clamping ring are integrally formed, and the material of the clamping ring is set to be made of high-strength alloy.

[0009] Preferably, a threaded through hole matched with the fastening bolt is opened on the connecting portion, one end of the fastening bolt is threadedly connected to the inside of the threaded through hole, and one end of the fastening bolt passes through the threaded through hole and is threadedly connected to a locking nut.

[0010] Preferably, the hole opener comprises a handheld portion, and a drill portion is detachably provided on the bottom of the handheld portion.

[0011] Preferably, the buried gas pipeline comprises a pipeline metal matrix, and an anti-corrosion layer is provided on the outer wall of the pipeline metal matrix.

[0012] Preferably, the inner cavity of the test hole is filled with a viscoelastic anti-corrosion tape, and the height of the viscoelastic anti-corrosion tape is higher than the anti-corrosion layer.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model can grind the anti-corrosion layer and make a fixed-point hole in the buried gas pipeline by setting a hole opener and a special clamp for use. Electrical connection with the pipeline can be achieved without welding operation, avoiding the cumbersome procedures, technical requirements, operating risks, personnel allocation, etc. caused by welding and patching operations, greatly improving construction efficiency. The special clamp can apply external force to fix the connection point, and can fit well with the metal substrate, thereby ensuring the detection quality of corrosion parameters. At the same time, the viscoelastic anti-corrosion tape patching method is adopted, which is safe, reliable and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the special clamp of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the clamping ring and the rubber lining of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the buried gas pipeline and the test hole of the utility model;

[0019] Figure 5 It is a schematic structural diagram of the metal substrate and anti-corrosion layer of the utility model.

[0020] In the figure: 1. buried gas pipeline; 101. metal matrix; 102. anti-corrosion layer; 2. hole opener; 201. hand-held part; 202. drill head; 3. test pile; 4. test hole; 5. special clamp; 501. clamping ring; 502. rubber lining; 6. wire; 7. wire contact piece; 8. fastening bolt; 9. connection part; 10. locking nut. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 The utility model provides a non-welded steel pipeline electrical connection construction device, comprising a gas buried pipeline 1, a hole opener 2 and a test pile 3 arranged on the ground, a test hole 4 is opened on the outer wall of the gas buried pipeline 1, a special clamp 5 is arranged on the outer wall of the gas buried pipeline 1, the special clamp 5 is located on the outside of the test hole 4, and a fastening bolt 8 is arranged on the special clamp 5, a wire 6 is electrically connected to the test pile 3, one end of the wire 6 is fixedly connected to a wire contact piece 7, and the wire contact piece 7 is arranged inside the test hole 4, and the hole opener is arranged 2 and the special clamp 5 can be used in combination to grind the anti-corrosion layer 102 and make a fixed-point hole in the buried gas pipeline 1, so that electrical connection with the pipeline can be achieved without welding operation, avoiding the cumbersome processes, technical requirements, operational risks, personnel allocation, etc. brought about by welding operations and patching operations, greatly improving the construction efficiency. The special clamp 5 can apply external force to fix the connection point, and can fit well with the metal matrix 101, thereby ensuring the detection quality of corrosion parameters. At the same time, the viscoelastic anti-corrosion tape patching method is adopted, which is safe, reliable and easy to operate.

[0023] The special clamp 5 includes a clamp ring 501 , and a rubber lining 502 is fixedly bonded to the inner side of the clamp ring 501 . The rubber lining 502 can better fit the anti-corrosion layer 102 and protect the anti-corrosion layer 102 .

[0024] A connecting portion 9 is provided on one side of the clamping ring 501, and the connecting portion 9 and the clamping ring 501 are integrally formed. The material of the clamping ring 501 is set to be a high-strength alloy. The high-strength alloy has high strength and hardness, which enables the clamping ring 501 to withstand greater pressure and tension when fixing the buried gas pipeline 1, thereby enhancing the stability of the pipeline connection. In addition, the high-strength alloy has excellent wear resistance and can maintain good performance even in long-term use and harsh environments, thereby extending the service life of the clamping ring and the pipeline.

[0025] The connection portion 9 is provided with a threaded through hole matched with the fastening bolt 8 , one end of the fastening bolt 8 is threadedly connected to the inside of the threaded through hole, and one end of the fastening bolt 8 passes through the threaded through hole and is threadedly connected to a locking nut 10 .

[0026] The hole opener 2 includes a handheld portion 201 , and a drill portion 202 is detachably provided at the bottom of the handheld portion 201 . The drill portions 202 of different diameters can be replaced to meet the requirements of wiring hole opening in various working environments.

[0027] The buried gas pipeline 1 includes a pipeline metal matrix 101 , an anti-corrosion layer 102 is arranged on the outer wall of the pipeline metal matrix 101 , and the inner cavity of the test hole 4 is filled with a viscoelastic anti-corrosion tape, and the height of the viscoelastic anti-corrosion tape is higher than the anti-corrosion layer 102 .

[0028] The working principle of the utility model is as follows: when in use, for the buried gas pipeline 1 that needs wiring, according to the position of the test pile 3, the opening position of the test hole 4 and the drill head 202 of the appropriate diameter are selected, and the hole opener 2 is used to manually open the hole on the buried gas pipeline 1, and the original anti-corrosion layer 102 of the buried gas pipeline 1 is penetrated to expose the metal matrix 101, and the test hole 4 is manually polished with sandpaper to form the test hole 4, and the test hole 4 is cleaned, and the surface of the exposed metal matrix 101 is coated with conductive glue for bonding with the wire contact sheet 7, and the surface of the connecting wire contact sheet 7 is cleaned and placed on the conductive glue of the test hole 4 for bonding, and the conductive glue needs to be cured for about 30 minutes after the bonding is completed. Ensure the bonding effect and quality, ensure that the wire contact piece 7 and the test hole 4 and the metal matrix 101 are firmly bonded, then connect the other end of the wire 6 to the test pile 3 to ensure that the system is electrically connected, fill the test hole 4 with viscoelastic anti-corrosion tape, and ensure that the viscoelastic anti-corrosion tape is slightly higher than the anti-corrosion layer 102, ensure that the test hole 4 can be filled when the special clamp 5 is fixed, and ensure the anti-corrosion effect, put the special clamp 5 on the test hole 4 and adjust the position, adjust the fastening bolts 8 and the locking nut 10, so that the special clamp 5 fits tightly against the anti-corrosion layer 102 of the buried gas pipeline 1, and squeeze the viscoelastic anti-corrosion tape at the same time to ensure that the test hole is filled, finally clean up the viscoelastic anti-corrosion tape overflowing from the edge of the special clamp 5, and restore the work site.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A non-welded steel pipeline electrical connection construction device, comprising a buried gas pipeline (1), a hole opener (2) and a test pile (3) arranged on the ground, characterized in that: A test hole (4) is provided on the outer wall of the buried gas pipeline (1); a special clamp (5) is provided on the outer wall of the buried gas pipeline (1); the special clamp (5) is located outside the test hole (4); a fastening bolt (8) is provided on the special clamp (5); a wire (6) is electrically connected to the test pile (3); one end of the wire (6) is fixedly connected to a wire contact piece (7); and the wire contact piece (7) is provided inside the test hole (4).

2. A non-welded steel pipeline electrical connection construction device according to claim 1, characterized in that: The special clamp (5) comprises a clamp ring (501), and a rubber lining (502) is fixedly bonded to the inner side of the clamp ring (501).

3. A non-welded steel pipeline electrical connection construction device according to claim 2, characterized in that: A connecting portion (9) is provided on one side of the clamping ring (501); the connecting portion (9) and the clamping ring (501) are integrally formed; and the clamping ring (501) is made of a high-strength alloy.

4. A non-welded steel pipeline electrical connection construction device according to claim 3, characterized in that: The connection portion (9) is provided with a threaded through hole matched with the fastening bolt (8), one end of the fastening bolt (8) is threadedly connected to the inside of the threaded through hole, and one end of the fastening bolt (8) passes through the threaded through hole and is threadedly connected to a locking nut (10).

5. A non-welded steel pipeline electrical connection construction device according to claim 1, characterized in that: The hole opener (2) comprises a handheld portion (201), and a drill portion (202) is detachably provided at the bottom of the handheld portion (201).

6. A non-welded steel pipeline electrical connection construction device according to claim 1, characterized in that: The buried gas pipeline (1) comprises a pipeline metal matrix (101), and an anti-corrosion layer (102) is provided on the outer wall of the pipeline metal matrix (101).

7. A non-welded steel pipeline electrical connection construction device according to claim 1, characterized in that: The inner cavity of the test hole (4) is filled with a viscoelastic anti-corrosion tape, and the height of the viscoelastic anti-corrosion tape is higher than the anti-corrosion layer (102).

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