In-casing ribbon magnesium anode anti-corrosion mounting structure and corrosion degree detecting method

Abstract

The invention provides an in-casing ribbon magnesium anode anti-corrosion mounting structure and a corrosion degree detecting method. A pipeline is protected by adopting a way that an anode metal strip such as a magnesium strip is wound between the pipeline and an outer sleeve, and then an auxiliary test piece and a reference electrode which are connected onto a test box are arranged on one side of the pipeline; and when the loss condition of the anode metal strip needs to be detected and whether the anode metal strip is mounted in place or not needs to be detected, the test box in a cathode testing well can be measured by a universal meter, so that the loss condition of the anode metal strip can be obtained and whether the anode metal strip is mounted in place or not can be obtained, andtherefore, the measuring method is simple and practical.

Description

technical field [0001] The invention belongs to the technical field of pipeline auxiliary equipment, and in particular relates to an anti-corrosion installation structure of a strip-shaped magnesium anode in a sleeve pipe and a method for detecting corrosion degree. Background technique [0002] At present, most of the buried pipelines are made of carbon steel, the pipelines have a long transmission distance, the soil environment is complex and changeable, the inner wall has no anti-corrosion measures, and the outer wall is painted with petroleum asphalt anti-corrosion coating. Due to the continuous corrosion of the inner wall by the medium in the pipe and the continuous corrosion of the outer wall by the external soil, the quality of the anti-corrosion layer of some pipelines cannot meet the design standards, the construction is not standardized, and the anti-corrosion measures are not in place. During the long-term operation, the corrosion factors and buried The long-term ...

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Problems solved by technology

[0002] At present, most of the buried pipelines are made of carbon steel, the pipeline transportation distance is long, the soil environment is complex and changeable, the inner wall has no anti-corrosion measures, and the outer wall is painted with petroleum asphalt anti-corrosion coating

Due to the continuous corrosion of the inner wall by the medium in the pipe and the continuous corrosion of the outer wall by the external soil, the quality of the anti-corrosion layer of some pipelines cannot meet the design standards, the construction is not standardized, and the anti-corrosion measures are not in place. During the long-term operation, the corrosion factors and buried The long-term effect of the pipeline has caused serious corrosion of the buried pipeline, especially the casing structure has a gap between the pipeline and the outer casing, and water is easy to enter, so the connection is more likely to be corroded

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