CN213266701U - A cathodic protection earthing device for oil gas pipeline - Google Patents
A cathodic protection earthing device for oil gas pipeline Download PDFInfo
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- CN213266701U CN213266701U CN202021599407.8U CN202021599407U CN213266701U CN 213266701 U CN213266701 U CN 213266701U CN 202021599407 U CN202021599407 U CN 202021599407U CN 213266701 U CN213266701 U CN 213266701U
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- grounding
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Abstract
The utility model provides a cathodic protection earthing device for oil gas pipeline, include: a grounding body; the cathode protection grounding wire is connected with the grounding body, a protective layer is arranged on the peripheral surface of the cathode protection grounding wire, and a waterproof protective outer sleeve is arranged on the peripheral surface of the protective layer. The cathodic protection grounding device can enable the pipeline and equipment grounding material under cathodic protection to have a good grounding effect, maintain the resistance stability of the grounding material, and simultaneously reduce the influence on the demand of cathodic protection current, thereby ensuring the stable operation of a cathodic protection system and the long-term effective use of the grounding system.
Description
Technical Field
The utility model relates to an oil gas exploitation technical field, concretely relates to cathodic protection earthing device for oil gas pipeline.
Background
When the cathodic protection pipeline needs to be grounded during oil and gas production, the grounding system should be compatible with the cathodic protection system and all grounding facilities should be avoided from adversely affecting the cathodic protection system.
At present, zinc/zinc-plated grounding electrodes or copper/copper-plated grounding electrodes are mostly adopted as materials selected for cathode protection grounding, and although the two materials can meet the requirement that the grounding resistance is less than 10 ohms in an electric power system, adverse effects exist in the aspect of a cathode protection system. For example, a zinc/zinc-plated grounding electrode is buried under the ground and is prone to corrosion, and the zinc/zinc-plated grounding electrode can actively sacrifice the material of the zinc/zinc-plated grounding electrode to protect other metal materials, so that grounding resistance is increased in a short time, and normal grounding function is affected. For copper/copper-plated grounding materials, the protection potential of the cathodic protection system actively protects the copper material, which results in a large demand for area cathodic protection current, thereby having a negative impact on the cathodic protection system, which greatly affects the cathodic protection performance of the cathodic protection system.
SUMMERY OF THE UTILITY MODEL
To the technical problem as above, the utility model aims at providing a cathodic protection earthing device for oil gas pipeline, this cathodic protection earthing device can make the pipeline and the equipment ground connection material that receive cathodic protection have good ground connection effect, can reduce the influence to the demand of cathodic protection electric current simultaneously to can effectively ensure cathodic protection system's steady operation and earthing system's long-term operation.
Therefore, according to the utility model provides a cathodic protection earthing device for oil gas pipeline, include: a grounding body; the cathode protection grounding wire is connected with the grounding body, a protective layer is arranged on the peripheral surface of the cathode protection grounding wire, and a waterproof protective outer sleeve is arranged on the peripheral surface of the protective layer.
In one embodiment, the grounding body comprises solid round steel, a nano conductive layer arranged on the outer peripheral surface of the solid round steel, and a zinc layer arranged on the outer peripheral surface of the nano conductive layer.
In one embodiment, the protective layer is an insulating layer formed on the outer peripheral surface of the cathodic protection grounding wire by mixing ceramic powder and shell powder, and the weight ratio of the ceramic powder to the shell powder is 2: 1.
In one embodiment, the ceramic powder and the shell powder each have a particle diameter of less than 1 micron.
In one embodiment, the waterproof protective jacket is a waterproof layer formed on the outer circumferential surface of the protective layer by using a polyethylene material.
In one embodiment, the protective layer is coated or sprayed on the outer peripheral surface of the cathodic protection grounding wire.
In one embodiment, the waterproof protective outer sleeve is arranged on the outer peripheral surface of the protective layer in a spraying mode.
In one embodiment, the thickness of the protective layer is set to be smaller than the thickness of the water-proof protective jacket.
In one embodiment, the thickness of the protective layer is set to be in the range of 1.5mm to 3 mm.
In one embodiment, the thickness of the water-proof protective casing is set to be in the range of 3mm-5 mm.
Compared with the prior art, the method has the advantages that:
according to the utility model discloses a cathodic protection earth connection for cathodic protection earthing device of oil gas pipeline has good film forming property's protective layer through the setting, can form good air isolated layer in the periphery of cathodic protection earth connection to slow down the galvanic corrosion of earth connection in the cathodic protection such as steam and oxygen among the external environment by a wide margin. Moreover, the protective layer can improve the resistance to the ground of the cathodic protection grounding wire, thereby reducing the inflow of cathodic protection current, which can effectively reduce the influence on a cathodic protection system. The cathode protection grounding device obviously enhances the water-resisting performance and the wear-resisting performance of the cathode protection grounding wire by arranging the water-resisting protective outer sleeve, thereby obviously prolonging the service life of the cathode protection grounding device. In addition, the pole protection grounding device is simple in structure, low in cost, simple in processing technology and capable of being produced industrially.
Drawings
The present invention will be described with reference to the accompanying drawings.
Fig. 1 shows the structure of a cathodic protection grounding device for oil and gas pipelines according to the present invention.
Fig. 2 shows the structure of the grounding body in the cathode-protecting grounding device shown in fig. 1.
Fig. 3 is a cross-sectional view of a cathodic protection ground line in the cathodic protection grounding device shown in fig. 1.
In the present application, all the figures are schematic and are only intended to illustrate the principles of the present invention and are not drawn to scale.
Detailed Description
The present invention will be described with reference to the accompanying drawings.
Fig. 1 shows the structure of a cathodic protection grounding device 100 for an oil and gas pipeline according to the present invention. As shown in fig. 1, the cathode protection grounding device 100 includes a grounding body 10, and a cathode protection grounding line 20 connected to the grounding body 10. As shown in fig. 3, a protective layer 21 is provided on the outer peripheral surface of the cathode protection earth wire 20, and a water-proof protective jacket 22 is provided on the outer peripheral surface of the protective layer 21. The cathode protection grounding device 100 is used for grounding protection of the cathode protection system pipeline and equipment, and can make the cathode protection system pipeline and equipment have good grounding effect, and can improve the ground resistance of the grounding wire to reduce the inflow of cathode protection current, thereby forming effective protection for the cathode protection system. This is very advantageous for ensuring a stable operation of the cathodic protection system and for ensuring a long-term effective use of the earthing system.
Fig. 2 shows the structure of the grounding body 10. As shown in fig. 2, the ground body 10 includes a solid round bar 11, a nano conductive layer 12 disposed on an outer circumferential surface of the solid round bar 11, and a zinc layer 13 disposed on an outer circumferential surface of the nano conductive layer 12. In one embodiment the diameter of the solid round steel 11 is set to 18mm and the diameter of the grounding body 10 is set to be in the range of 24-2500 mm. The thickness of the zinc layer 13 is set to not less than 3 mm. The length of the grounding body 10 is preferably set to 2500 mm.
In an embodiment not shown, the grounding body 10 may also be made of zinc-clad steel, galvanized flat iron or zinc strip.
According to the utility model discloses, protective layer 21 on cathodic protection earth connection 20 is the insulating layer that adopts ceramic powder and shell powder mixture to form in the peripheral surface of cathodic protection earth connection 20. Preferably, the weight ratio of the ceramic powder and the shell powder adopted by the protective layer 21 is 2:1, and the particle diameters of the ceramic powder and the shell powder are both less than 1 micron. The thickness of the protective layer 21 is set to be in the range of 1.5mm to 3 mm. The protective layer 21 can improve the resistance to ground of the cathodic protection grounding wire 20, so that the pipeline and equipment grounding material under cathodic protection has a good grounding effect, the inflow of cathodic protection current is reduced, and the influence on a cathodic protection system can be effectively reduced.
In one embodiment, the protective layer 21 may be disposed on the outer circumferential surface of the cathode protection grounding wire 20 by coating or spraying. Specifically, the outer layer surface of the cathode protection grounding wire 20 is subjected to grinding and polishing treatment, and then, a mixed material of ceramic powder and shell powder is coated or sprayed on the outer layer surface of the cathode protection grounding wire 20, so that the protective layer 21 is formed. The protective layer 21 has a good film forming property, and can form a good air insulating layer on the periphery of the cathodic protection ground wire 20, thereby greatly reducing galvanic corrosion of water vapor, oxygen and the like in the external environment on the cathodic protection ground wire 20. In addition, the protective layer 21 has good water-proof property and wear resistance, so that the service life of the cathodic protection grounding wire 20 can be effectively prolonged.
According to the utility model discloses, water proof protective coat 22 is the waterproof layer that adopts the polyethylene material to form in the peripheral surface of protective layer 21. The thickness of the protective layer 21 is set to be smaller than the thickness of the water-proof protective outer jacket 22. The thickness of the water-resistant protective outer jacket 22 is set to be in the range of 3mm to 5 mm. The waterproof protective outer jacket 20 can significantly enhance the waterproof performance and the wear resistance of the cathodic protection grounding wire 100, thereby significantly prolonging the service life of the cathodic protection grounding device 100. In addition, the water-proof protective outer sleeve 22 is made of polyethylene material, which is economical and practical and can meet the insulation requirement of the water-proof protective outer sleeve 22.
In one embodiment, the water-proof protective outer jacket 22 may be disposed on the outer circumferential surface of the protective layer 21 by spraying.
When the cathode protection grounding device 100 is used, the cathode protection grounding device 100 is connected with a cathode protection system pipeline and equipment, the cathode protection grounding device 100 can improve the ground resistance of a grounding lead, so that the grounding material of the cathode protection system pipeline and equipment has a good grounding effect, the influence on the demand of cathode protection current can be reduced, and the cathode protection system is effectively protected. This is very advantageous for maintaining the resistance stability of the grounding material, thereby ensuring stable operation of the cathodic protection system and ensuring long-term effective use of the grounding system.
According to the utility model discloses a cathodic protection earthing device 100 for oil gas pipeline can make the pipeline and the equipment ground connection material that receive cathodic protection have good ground connection effect to keep ground connection material's resistance stability, reduce the influence to cathodic protection electric current's demand simultaneously, thereby guarantee cathodic protection system's steady operation and the long-term effectual use of ground connection system. The cathode protection grounding device 100 is provided with the protective layer 21 with good film-forming property, so that a good air isolation layer can be formed on the periphery of the cathode protection grounding wire 20, and galvanic corrosion of water vapor, oxygen and the like in the external environment to the cathode protection grounding wire 20 is greatly reduced. Also, the protective layer 21 can increase the resistance to ground of the cathodic protection ground line 20, thereby reducing the inflow of cathodic protection current, which can effectively reduce the influence on the cathodic protection system. The cathode protection grounding device 100 significantly enhances the water-proof performance and the wear resistance of the cathode protection grounding wire 20 by arranging the water-proof protective outer sleeve 22, thereby significantly prolonging the service life of the cathode protection grounding device 100. In addition, the pole protection grounding device 100 has the advantages of simple structure, low cost and simple processing technology, and can be industrially produced.
Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and should not be construed as limiting the present invention in any way. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing examples, or that equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A cathodic protection grounding device for an oil and gas pipeline, comprising:
a grounding body (10);
the cathode protection grounding wire (20) is connected with the grounding body, a protective layer (21) is arranged on the peripheral surface of the cathode protection grounding wire, and a waterproof protective outer sleeve (22) is arranged on the peripheral surface of the protective layer.
2. The cathodic protection grounding device according to claim 1, wherein the grounding body comprises solid round steel (11), a nano conductive layer (12) provided on the outer peripheral surface of the solid round steel, and a zinc layer (13) provided on the outer peripheral surface of the nano conductive layer.
3. The cathodic protection grounding device according to claim 1, wherein the protective layer is an insulating layer formed on the outer peripheral surface of the cathodic protection grounding wire by mixing ceramic powder and shell powder.
4. The cathodic protection grounding device of claim 1, wherein the water-proof protective jacket is a water-proof layer formed on the outer circumferential surface of the protective layer by using a polyethylene material.
5. The cathode protection grounding device according to claim 1 or 3, wherein the protective layer is disposed on the outer peripheral surface of the cathode protection grounding wire by coating or spraying.
6. The cathodic protection grounding device according to claim 1 or 4, wherein the waterproof protective jacket is disposed on the outer peripheral surface of the protective layer by spraying.
7. The cathodic protection grounding device according to claim 1 or 3, wherein the thickness of the protective layer is set smaller than the thickness of the water-proof jacket.
8. The cathodic protection grounding device according to claim 7, wherein the thickness of the protective layer is set in the range of 1.5mm-3 mm.
9. The cathodic protection grounding device of claim 7, wherein the water-resistant protective outer jacket is provided with a thickness in the range of 3mm-5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021599407.8U CN213266701U (en) | 2020-08-05 | 2020-08-05 | A cathodic protection earthing device for oil gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021599407.8U CN213266701U (en) | 2020-08-05 | 2020-08-05 | A cathodic protection earthing device for oil gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213266701U true CN213266701U (en) | 2021-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021599407.8U Active CN213266701U (en) | 2020-08-05 | 2020-08-05 | A cathodic protection earthing device for oil gas pipeline |
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| Country | Link |
|---|---|
| CN (1) | CN213266701U (en) |
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2020
- 2020-08-05 CN CN202021599407.8U patent/CN213266701U/en active Active
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