Oil and gas pipeline grounding device

Abstract

The utility model discloses an oil and gas pipeline grounding device which comprises a grounding fixing main body, a fixing head and a protective cover, the appearance of the grounding fixing main body is of a three-dimensional box body structure, and a three-dimensional space used for installing the fixing head is arranged in the grounding fixing main body. The fixing head is fixedly and stably connected with a round hole in one side of the grounding fixing body through a connecting piece, the top side of the fixing head is provided with a crimping groove recessed towards the inner center of the fixing head, one end of the crimping groove is communicated with the round hole in one side of the grounding fixing body through an inner through hole of the connecting piece, and a grounding wire is connected in the crimping groove. A long-strip-shaped crimping sheet matched with the crimping groove is arranged in the crimping groove. According to the utility model, the connection between the grounding wire and the oil-gas pipeline is more convenient, stable, safe and reliable, the corrosion rate is effectively reduced, the service life of the grounding wire is prolonged, the later maintenance of the grounding wire is facilitated, the maintenance cost is saved, and the oil-gas transmission safety is ensured.

Description

Technical Field

[0001] The utility model relates to a grounding wire device, in particular to an oil and gas pipeline grounding device. Background Art

[0002] As a highly efficient energy source, oil and natural gas are one of the most widely used energy sources at present. From the extraction and processing of oil and natural gas to the sale and use, a key link in this process is the transmission of oil and gas, and the most important channel for oil and gas transmission is the oil and gas pipeline. In the process of oil and gas flowing in the pipeline, since the oil and gas rub against the inner wall of the pipeline in the form of fluid, static electricity will inevitably be generated. If the static electricity generated cannot be discharged in time, the static electricity voltage will gradually increase over time, and it is likely to cause the oil and gas pipeline to explode. Installing grounding wires on oil and gas pipelines is an important way to discharge static electricity and ensure the safety of oil and gas transmission.

[0003] At present, the common grounding wire connection method is to vertically weld a screw (such as Figure 1 As shown in the figure, the grounding wire is connected to the screw rod through the split wire nose at one end, and then the nut is tightened on the screw rod to crimp the wire nose to fix it on the screw rod, so as to achieve the purpose of installing and fixing the grounding wire. However, it is found in the process of use that this grounding wire connection method has the following defects:

[0004] 1. Since the screw terminals in the grounding wire are exposed to the outside world for a long time and are affected by the weather such as wind, sun, rain, etc., the terminals are very prone to corrosion after a period of use, especially in a high-salt and high-humidity environment. This situation is particularly obvious. As an important channel for oil and gas transmission, oil and gas pipelines normally contain oil and gas. When the grounding wire terminal is corroded, if the grounding wire terminal needs to be replaced safely, the oil and gas in the pipeline must be emptied. Therefore, the transmission of oil and gas is greatly hindered and the transmission efficiency is affected;

[0005] 2. Since the grounding wire is crimped with a wire nose, the crimped wire nose will age and reduce pressure after a period of use, causing the originally compacted grounding wire to loosen, eventually causing the grounding wire to be poorly grounded or loose. If personnel cannot discover and deal with it in time, it will cause great safety hazards to the transmission safety of oil and gas in the pipeline;

[0006] 3. Since the grounding wire is a wire, during the use of the grounding wire, it is exposed to the outdoors and will swing with the wind in windy weather. If the grounding wire swings for a long time, the wire nose connection of the grounding wire is prone to breakage due to stress, which will eventually cause the grounding function of the grounding wire to fail.

[0007] 4. Since the terminal is a screw with flat surfaces at both ends, the contact surface of the grounding wire is not easy to fit with the pipe when welded on the pipe, resulting in the terminal being not firmly fixed and easily loosened and falling off, greatly reducing the grounding efficiency. Utility Model Content

[0008] The purpose of the utility model is to provide an oil and gas pipeline grounding device, which makes the connection between the grounding wire and the oil and gas pipeline more convenient, stable, safe and reliable, effectively reduces the corrosion rate and prolongs the service life of the grounding wire, and facilitates the later maintenance of the grounding wire, saves maintenance costs, and ensures the safety of oil and gas transmission.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] A grounding device for an oil and gas pipeline comprises a grounding fixing body, a fixing head and a protective cover, wherein the grounding fixing body has an outer shape of a three-dimensional box structure, and a three-dimensional space for installing the fixing head is provided inside the grounding fixing body, the fixing head is connected and fixed firmly to a circular hole on one side of the grounding fixing body through a connecting piece, a crimping groove recessed toward its inner center is provided on the top side of the fixing head, one end of the crimping groove is connected to the circular hole on one side of the grounding fixing body through an inner through hole of the connecting piece, a grounding wire is connected in the crimping groove, a long strip-shaped crimping piece matching the crimping groove is provided in the crimping groove, the crimping piece cooperates with the crimping groove of the fixing head to crimp and fix the grounding wire in the crimping groove, a locking bolt which can be rotated toward the crimping piece and can apply pressure to the crimping piece is provided on the top side of the grounding fixing body through a threaded hole, and a protective cover is provided on the outer side of the grounding fixing body.

[0011] Furthermore, the connecting end between the crimping groove and the connecting piece is provided with an upwardly tilted and enlarged wire insertion port.

[0012] Furthermore, one end of the grounding wire passes through the circular hole of the grounding fixing body, and then continues to pass through the inner through hole of the connecting piece and then extends into the crimping groove of the fixing head.

[0013] Furthermore, an elastic rubber pad is sleeved in the inner through hole of the connector, and a through hole is provided in the middle of the elastic rubber pad for the grounding wire to pass through.

[0014] Furthermore, the through hole of the elastic rubber pad is consistent with the diameter of the elongated groove of the crimping groove.

[0015] Furthermore, the lower end of the grounding fixing body is provided with an arc structure that matches the outer surface of the oil and gas pipeline.

[0016] Furthermore, the grounding fixing body is made of ordinary copper sheet material.

[0017] Furthermore, the lower end of the protective cover is a box structure with an opening.

[0018] Furthermore, a threaded hole corresponding to the threaded hole of the grounding fixing body is provided on the top side of the protective cover, and the threaded hole is used to set a locking bolt.

[0019] Furthermore, the protective cover is made of ordinary plastic sheets.

[0020] The advantages of the utility model are:

[0021] The utility model adopts a ground fixing body with a three-dimensional box structure to replace the previous single screw type terminal. By arranging an arc surface that matches the oil and gas pipeline on the bottom side of the ground fixing body, the welding between the ground fixing body and the oil and gas pipeline is more firm and not easy to loosen or fall off, thereby protecting the oil and gas pipeline for the safety of oil and gas transmission;

[0022] The utility model can effectively extend the service life of the grounding fixing body by arranging a plastic protective cover on the outer side of the grounding fixing body;

[0023] The fixing head of the utility model is arranged in the three-dimensional inner space of the ground fixing body. By arranging a long strip crimping groove on the top side of the fixing head, a crimping piece matching with the crimping groove is embedded in the crimping groove, and the end of the crimping groove that receives the grounding wire insertion is arranged as an upwardly tilted and enlarged wire insertion port, which greatly facilitates the insertion of the connector of the grounding wire and greatly improves the working efficiency of the wiring of the grounding wire.

[0024] The utility model provides a locking bolt on the top side of the grounding fixing body, which is rotated and pushed toward the crimping piece in the crimping groove inside the grounding fixing body, so that the crimping piece can firmly crimp the grounding wire in the crimping groove of the fixing head, so that the grounding wire is not easy to loosen and fall off, thereby ensuring a fully effective grounding effect.

[0025] The utility model discloses a grounding wire is simple in structure, is easy to use, can realize the quick connection and fixation of ground wire and oil and gas pipeline, effectively increases the connection tightness of ground wire and ground fixing body, makes grounding performance more reliable after ground wire is connected, reduces the wear of ground wire and ground fixing body, makes loosening of ground wire less likely, and at the same time, because protective cover is arranged outside ground fixing body for protection, makes the corrosion speed of whole wiring device slow down, greatly prolongs its service life, and makes repair and maintenance more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Other features, objectives and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings.

[0027] Figure 1 Figure 1 is a background technology diagram;

[0028] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0029] Figure 3 It is a schematic diagram of the assembly structure of the connecting piece and the elastic rubber pad of the utility model;

[0030] Figure 4 It is a schematic diagram of the assembly structure of the protective cover and the grounding fixing body of the utility model;

[0031] Figure 5 It is a schematic diagram of the overall structure of the utility model.

[0032] In the figure: 1 grounding fixing body, 2 fixing head, 3 elastic rubber pad, 4 protective cover, 5 locking bolt, 6 crimping piece, 7 connecting piece, 8 grounding wire. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0034] See also Figure 2-5 , an oil and gas pipeline grounding device, characterized in that it includes a grounding fixing body 1, a fixing head 2 and a protective cover 4, the outer shape of the grounding fixing body 1 is a three-dimensional box structure, and a three-dimensional space for installing the fixing head 2 is provided inside the grounding fixing body 1, the fixing head 2 is connected and fixed firmly with the circular hole on one side of the grounding fixing body 1 through a connecting piece 7, the top side of the fixing head 2 is provided with a crimping groove recessed toward the inner center direction thereof, one end of the crimping groove is connected with the circular hole on one side of the grounding fixing body 1 through an inner through hole of the connecting piece 7, a grounding wire 8 is connected in the crimping groove, one end of the grounding wire 8 penetrates from the circular hole of the grounding fixing body 1, and continues to pass through the inner through hole of the connecting piece 7 and then extends into the crimping groove of the fixing head 2, a long strip crimping piece 6 that matches it is provided in the crimping groove, and the crimping piece 6 and the fixing The crimping groove of the head 2 can cooperate to crimp and fix the exposed wire end of the grounding wire 8 after stripping in the crimping groove. The top side of the grounding fixed body 1 is provided with a locking bolt 5 through a threaded hole, which can be rotated toward the crimping piece 6 and can apply pressure to the crimping piece 6. The locking bolt 5 is threadedly connected to the threaded hole of the grounding fixed body 1. By rotating the locking bolt 5, the locking bolt 5 cooperates with the threaded hole of the grounding fixed body 1 so that the lower end of the locking bolt 5 continues to push the crimping piece 6 downward to firmly press the grounding wire 8 into the crimping groove of the fixing head 2 to avoid loosening and falling off after long-term use, thereby protecting the oil and gas pipeline for the safe transmission of oil and gas. The outer side of the grounding fixed body 1 is provided with a protective cover 4, which prevents the grounding fixed body 1 from being damaged by high-salt and high-humidity environments and sun and rain.

[0035] The connecting end of the crimping groove and the connector 7 serves as the crimping groove to receive the starting end of the grounding wire 8. The starting end is provided with an upwardly tilted and enlarged wire insertion port, which is convenient for inserting the connector of the grounding wire 8 and greatly improves the wiring efficiency of the grounding wire 8.

[0036] An elastic rubber pad 3 is sleeved in the inner through hole of the connector 7 , and a through hole is provided in the middle of the elastic rubber pad 3 for the grounding wire 8 to pass through. The elastic rubber pad 3 can prevent and reduce the damage caused by the friction between the grounding wire 8 and the metallic connector 7 .

[0037] The through hole of the elastic rubber pad 3 is consistent with the diameter of the elongated groove of the crimping groove.

[0038] The lower end of the grounding fixing body 1 is provided with an arc structure that matches the outer surface of the oil and gas pipeline, so that it can achieve sufficient stability when installing and welding the oil and gas pipeline.

[0039] The grounding fixing body 1 is made of ordinary copper sheet material, so that it has a good grounding effect.

[0040] The lower end of the protective cover 4 is a box structure with an opening. The protective cover 4 is inserted from the outer top side of the grounding fixing body 1, thereby protecting the grounding fixing body 1 from corrosion and sun and rain.

[0041] The top side of the protective cover 4 is provided with a threaded hole corresponding to the threaded hole of the grounding fixing body 1, and the threaded hole is used to set the locking bolt 5. The protective cover 4 is made of ordinary plastic sheet, so that it has a better protective effect on the grounding fixing body 1 made of metal material.

[0042] In the initial stage of oil and gas pipeline installation, the utility model welds the arc end of the grounding fixing body 1 on the oil and gas pipeline that needs to use the grounding wire 8, and the crimping piece 6 is always placed in the crimping groove, and the protective cover 4 is inserted into the grounding fixing body 1. At this time, the stripped end of the grounding wire 8 is inserted from the round hole on the side of the protective cover 4, and the grounding wire 8 passes through the through hole of the elastic rubber pad 3 and enters the crimping groove. Since one end of the crimping piece 6 is tilted, it is convenient for the grounding wire 8 to squeeze into the crimping piece 6 and enter the bottom of the crimping groove. After the grounding wire 8 is plugged in place, the locking bolt 5 is passed through the corresponding threaded holes on the upper part of the protective cover 4 and the grounding fixing body 1, and the locking bolt 5 is tightened. The locking bolt 5 presses the crimping piece 6, so that the crimping piece 6 and the bottom of the crimping groove are constantly approached, so as to compress the grounding wire 8 between the two, which is also convenient for replacing the locking bolt 5 after corrosion.

[0043] The above describes the basic principle, main features and advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the utility model.

Claims

1. An oil and gas pipeline grounding device, characterized in that: The invention comprises a ground fixing body (1), a fixing head (2) and a protective cover (4); the ground fixing body (1) has a three-dimensional box structure in appearance, and a three-dimensional space is provided inside the ground fixing body for installing the fixing head (2); the fixing head (2) is connected and fixed firmly to a circular hole on one side of the ground fixing body (1) through a connecting piece (7); a crimping groove is provided on the top side of the fixing head (2) and is recessed toward the inner center thereof; one end of the crimping groove is connected to the ground fixing body (1) through an inner through hole of the connecting piece (7) 1) The circular holes on one side are connected, a grounding wire (8) is connected in the crimping groove, a long strip crimping piece (6) matching with the crimping groove is provided in the crimping groove, the crimping piece (6) cooperates with the crimping groove of the fixing head (2) to crimp and fix the grounding wire (8) in the crimping groove, a locking bolt (5) is provided on the top side of the grounding fixing body (1) through a threaded hole, and can be rotated in the direction of the crimping piece (6) and apply pressure to the crimping piece (6), and a protective cover (4) is provided on the outer side of the grounding fixing body (1).

2. The oil and gas pipeline grounding device according to claim 1, characterized in that: The connecting end of the crimping groove and the connecting piece (7) is provided with a wire insertion port which is tilted and enlarged upward.

3. The oil and gas pipeline grounding device according to claim 1, characterized in that: One end of the grounding wire (8) passes through the circular hole of the grounding fixing body (1), and then passes through the inner through hole of the connecting piece (7) and then extends into the crimping groove of the fixing head (2).

4. The oil and gas pipeline grounding device according to claim 1, characterized in that: An elastic rubber pad (3) is sleeved in the inner through hole of the connecting piece (7), and a through hole is provided in the middle of the elastic rubber pad (3) to allow the grounding wire (8) to pass through.

5. The oil and gas pipeline grounding device according to claim 4, characterized in that: The through hole of the elastic rubber pad (3) is consistent in diameter with the long strip-shaped groove of the crimping groove.

6. The oil and gas pipeline grounding device according to claim 1, characterized in that: The lower end of the grounding fixing body (1) is provided with an arc structure that matches the outer surface of the oil and gas pipeline.

7. The oil and gas pipeline grounding device according to claim 1, characterized in that: The grounding fixing body (1) is made of ordinary copper sheet material.

8. The oil and gas pipeline grounding device according to claim 1, characterized in that: The lower end of the protective cover (4) is a box structure with an opening.

9. The oil and gas pipeline grounding device according to claim 1, characterized in that: The top side of the protective cover (4) is provided with a threaded hole corresponding to the threaded hole of the grounding fixing body (1), and the threaded hole is used to set a locking bolt (5).

10. The oil and gas pipeline grounding device according to claim 1, characterized in that: The protective cover (4) is made of ordinary plastic sheets.

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