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Anti-corrosion method for epoxy powder coating and sacrificial anode pipeline

A sacrificial anode and epoxy powder technology, which is applied in the field of pipeline anticorrosion, can solve the problems of short protection period, high cost, and poor effect, and achieve the effects of reducing manufacturing cost, simple structure, and saving consumption

Inactive Publication Date: 2020-10-30
SHAANXI YUYANG PETROLEUM TECH ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional anti-corrosion method of buried steel pipe with anti-corrosion tape is one-time anti-corrosion, the anti-corrosion effect and anti-corrosion protection time are limited, and it cannot be remedied later
[0003] At present, the known anticorrosion technology of oilfield tubing mainly adopts the method of surface coating protection. The material adopts the method of multi-component penetration. These methods undoubtedly have a certain protective effect on the anti-corrosion of the oil pipe, but the effect is not good, the protection period is short, and the cost is high

Method used

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  • Anti-corrosion method for epoxy powder coating and sacrificial anode pipeline

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Embodiment 1

[0025] Such as figure 1 As shown, in the embodiment provided by the present invention, a kind of epoxy powder coating adds sacrificial anode pipeline anticorrosion method, and described anticorrosion method comprises the following specific steps:

[0026] S100: Use the principle of electrochemical sacrificial anode to protect the cathode, and use the metal of the active element to make the sacrificial anode of the pipeline;

[0027] S200: Processing the pipeline sacrificial anode into a ring structure suitable for the pipeline to be protected against corrosion;

[0028] S300: fixing the pipe sacrificial anode with ring structure on the outer wall port of the metal pipe to be protected;

[0029] Wherein, the manufacturing method of the pipeline sacrificial anode with annular structure includes the following specific steps: melt the active element metal block into a liquid by heating and melting, and then make a shaft sleeve blank by casting, after forming, heat preservation, a...

Embodiment 2

[0036] Such as figure 1 As shown, in the embodiment provided by the present invention, a kind of epoxy powder coating adds sacrificial anode pipeline anticorrosion method, and described anticorrosion method comprises the following specific steps:

[0037] S100: Use the principle of electrochemical sacrificial anode to protect the cathode, and use the metal of the active element to make the sacrificial anode of the pipeline;

[0038] S200: Processing the pipeline sacrificial anode into a ring structure suitable for the pipeline to be protected against corrosion;

[0039] S300: fixing the pipe sacrificial anode with ring structure on the outer wall port of the metal pipe to be protected;

[0040] Wherein, the manufacturing method of the pipeline sacrificial anode with annular structure includes the following specific steps: melt the active element metal block into a liquid by heating and melting, and then make a shaft sleeve blank by casting, after forming, heat preservation, a...

Embodiment 3

[0047] Such as figure 1 As shown, in the embodiment provided by the present invention, a kind of epoxy powder coating adds sacrificial anode pipeline anticorrosion method, and described anticorrosion method comprises the following specific steps:

[0048] S100: Use the principle of electrochemical sacrificial anode to protect the cathode, and use the metal of the active element to make the sacrificial anode of the pipeline;

[0049] S200: Processing the pipeline sacrificial anode into a ring structure suitable for the pipeline to be protected against corrosion;

[0050] S300: fixing the pipe sacrificial anode with ring structure on the outer wall port of the metal pipe to be protected;

[0051] Wherein, the manufacturing method of the pipeline sacrificial anode with annular structure includes the following specific steps: melt the active element metal block into a liquid by heating and melting, and then make a shaft sleeve blank by casting, after forming, heat preservation, a...

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Abstract

The embodiment of the invention relates to the technical field of pipeline corrosion prevention, in particular to an anti-corrosion method for an epoxy powder coating and sacrificial anode pipeline. The anti-corrosion method comprises the following specific steps that S100, the principle of protecting a cathode by using an electrochemical sacrificial anode is utilized, and a pipeline sacrificial anode is manufactured from metal of active elements; S200, the pipeline sacrificial anode is processed and manufactured into an annular structure matched with the pipeline needing anti-corrosion protection; and S300, the pipeline sacrificial anode of the annular structure is fixedly arranged an outer wall port of the to-be-protected metal pipeline. In the anti-corrosion method for the epoxy powdercoating and sacrificial anode pipeline, the sacrificial anode can be well arranged on the outer wall of the port of the to-be-protected metal pipeline, a sleeve anode is prepared by using the principle of protecting the cathode by using the sacrificial anode, a good anti-corrosion effect is achieved on a sleeve and a hoop, the structure is simple, the anti-corrosion period can reach 5-10 years, the consumption of metal materials is greatly saved, and the manufacturing cost of facilities is effectively reduced.

Description

technical field [0001] The embodiment of the invention relates to the technical field of pipeline anticorrosion, in particular to an epoxy powder coating plus sacrificial anode pipeline anticorrosion method. Background technique [0002] Steel buried pipelines are susceptible to corrosion. The traditional anti-corrosion method of buried steel pipe with anti-corrosion tape is one-time anti-corrosion, the anti-corrosion effect and anti-corrosion protection time are limited, and it cannot be remedied later. [0003] At present, the known anticorrosion technology of oilfield tubing mainly adopts the method of surface coating protection. The material adopts multiple infiltration methods. These methods undoubtedly have a certain protective effect on the anticorrosion of the oil pipe, but the effect is not good, the protection period is short, and the cost is high. [0004] Therefore, it is urgent to design an epoxy powder coating plus sacrificial anode pipeline anticorrosion met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F13/16B22D25/04
CPCB22D25/04C23F13/16C23F2213/32
Inventor 杨敏于海涛王闻铭巨帅石硕鲁培平宋彦玲
Owner SHAANXI YUYANG PETROLEUM TECH ENG CO LTD