A pipe inner wall anti-corrosion coating device suitable for bellows

Abstract

The invention discloses an anti-corrosion coating device for the inner wall of a corrugated pipe, which belongs to the field of anti-corrosion for the inner wall of a pipe. For the liquid cylinder, the left end of the positioning plate is fixedly connected with a motor, and the output end of the motor runs through the interior of the positioning plate and is fixedly connected with the outer end of the liquid storage cylinder. The method of coating is to coat the inner wall of the bellows without blind spots. The elastic coating bag is squeezed and deformed to fully contact the inner wall of the bellows, so that the uneven inner wall of the bellows can be fully contaminated with the slow flow of the elastic coating bag. At the same time, brushing the inner wall of the pipe with the aid of a brush can effectively eliminate the air gap between the inner wall of the pipe and the corrosion inhibitor, so that the corrosion inhibitor can be distributed more evenly and comprehensively on the inner wall of the pipe, so as to realize the formation of corrosion inhibitors on the inner wall of the corrugated pipe. Uniform and complete anti-corrosion film.

Description

technical field [0001] The invention relates to the field of pipe inner wall anticorrosion, and more specifically relates to a pipe inner wall anticorrosion coating device suitable for corrugated pipes. Background technique [0002] Pipe anticorrosion refers to the chemical reaction of steel pipes in use and transportation due to the influence of the use environment and the transmission medium, resulting in corrosion. Corrosion will cause great damage to metal pipes, because no matter how good the external coating is and how advanced the external anti-corrosion technology is, if the internal anti-corrosion is not carried out, it will cause corrosion and be scrapped prematurely. However, internal corrosion is concealed, and its existence is often ignored by people. At the same time, due to the particularity of the conveying medium, the internal corrosion of the pipe is very serious, even far exceeding the external corrosion. Statistics show that up to now, the corrosion per...

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Problems solved by technology

[0003] The coating technology in the pipe is the research focus of the anti-corrosion technology in the pipe, and the smaller the diameter of the pipe, the more difficult it is to apply. In the prior art, the method of spraying and film-forming is often used to form an anti-corrosion layer on the inner wall of the pipe. First of all, it is difficult to uniformly and comprehensively coat the inner wall of the pipe. Spray the corrosion inhibitor. Secondly, for corrugated pipes with uneven inner walls, there are likely to be blind spots in the spraying method, and it is more difficult to form a comprehensive and uniform anti-corrosion layer.

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