Anti-corrosion structure and method of pipeline of in humid environment

Abstract

The invention discloses an anti-corrosion structure and method of a pipeline inof a humid environment. The anti-corrosion structure comprises the pipeline, a substrate, an insulating anti-corrosion layer, a metal mesh and a waterproof insulating layer; the anti-corrosion method comprises the steps of substrate pouring, pipeline treatment, insulating anti-corrosion layer arrangement, metal mesh winding and waterproof insulating layer arrangement. According to the anti-corrosion structure and method of the pipeline of in the humid environment, through the substrate, the humid environment below the pipeline is isolated, pipeline settlement is avoided, by means of double-layer insulation, stray current which flows into the pipeline directly is avoided, the metal mesh forms electrostatic shielding to reduce effects, of an electric filed which is formed due to flowing of current in soil, on the pipeline, and the anti-corrosion structure of the pipeline of in the humid environment is targetedhas the advantages of, good in anti-corrosion performance, high in reliability, simple and convenient in construction process and low in cost is provided.

Description

technical field [0001] The invention relates to the field of pipeline anticorrosion, in particular to the field of pipeline anticorrosion in humid environment. Background technique [0002] When carrying out long-distance liquid or gas transportation, pipeline transportation is often used, and in the transportation process, pipelines are mostly buried underground, and need to pass through different areas and lay pipelines in different underground environments, which is not small for pipelines challenge. Because there are a variety of corrosion sources that can corrode pipelines in the underground environment, stray currents, microorganisms, acids, alkalis, salts, etc. will corrode pipelines, causing oxygen absorption corrosion, electrochemical corrosion, hydrogen sulfide corrosion, bacterial corrosion, etc. . [0003] The corrosion of pipelines is particularly obvious in humid underground environments. In humid environments, there is a large amount of water, which makes ac...

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of pipeline corrosion in humid environment, especially the problem of electrochemical corrosion caused by stray current, and provide a kind of pipeline with strong pertinence, good anti-corrosion performance, high reliability, simple construction process and low cost. Pipeline anti-corrosion structure and anti-corrosion method in humid environment

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