Universal inner wall corrosion prevention and film forming device for bent and straight pipes

Abstract

The invention discloses a universal inner wall corrosion prevention and film forming device for bent and straight pipes, and belongs to the field of pipe inner wall corrosion prevention. The universalinner wall corrosion prevention and film forming device for the bent and straight pipes comprises a scraping plate and a sealing plate, wherein the end, close to the sealing plate, of the scraping plate is fixedly connected with a positioning plate, and an inner adaptive applying pipe is fixedly connected between the sealing plate and the positioning plate. According to the universal inner wall corrosion prevention and film forming device for the bent and straight pipes, the space between the sealing plate and the positioning plate is fully filled with a corrosion inhibitor, the corrosion inhibitor makes full contact with the inner wall of a pipe in the area, meanwhile, a plurality of soft brushes are used for brushing the inner wall of the pipe, so that the air gap between the corrosioninhibitor and the inner wall part of the pipe is effectively eliminated, and a uniform and complete anti-corrosion film is formed on the inner wall of the pipe; and the device has the characteristicsof high quality and high benefit in film formation, can be simultaneously suitable for the straight pipes and the irregular bent pipes through the internal adaptive applying pipe consisting of a rubber hose, elastic belts and the soft brushes, can carry out coating film formation process with the same effect on the straight and bent pipes, and has the characteristic of ultrahigh practicability.

Description

technical field [0001] The invention relates to the field of pipe inner wall anti-corrosion, and more specifically relates to an inner wall anti-corrosion film-forming device for bending and straight 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...

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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, resulting in uneven thickness of the anti-corrosion film coated in the pipe, and local corrosion is prone to occur in the pipe. In addition, the existing spraying in the pipe is also difficult to use inside the curved pipe

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