Discharge pipe inner wall coating device

Abstract

The invention belongs to the technical field of pipeline inner wall repairing, and particularly relates to a discharge pipe inner wall coating device. In order to solve the problem that a reference plane cannot be positioned when a large number of flange faces are damaged or a coating is newly made and solve the problem that normal coating cannot be performed on the inner wall and a welding region of a discharge pipe on a nuclear power plant seawater main pipeline, the device which can perform coating on a coating inside a small space which the view cannot be reached is designed. The device is characterized by comprising a handle, a brush, a base and an oil paint storage tank; the handle is fixed to the upper end of the base, and the oil paint storage tank is fixed to the left side of the lower end of the base; the brush is arranged on the left side end face of the base and the upper end face of the oil paint storage tank. Common coating is modified by the brush, the brush base at the bottom extends in the horizontal direction, and coating is performed on the inner wall of the discharge pipe and the circumferential weld region of the discharge pipe.

Description

technical field [0001] The invention belongs to the technical field of pipeline inner wall repair, and in particular relates to a coating device for the inner wall of a sewage pipe. Background technique [0002] There are a large number of seawater pipes used for unit system cooling in the seawater system of nuclear power plants in coastal areas in China. The sewage pipe is a small-diameter pipe that plays the role of pipe sewage on the main seawater pipe, with a diameter of about 10-15cm and a length of about 15-20cm. It is directly welded and installed on the main seawater pipeline. Due to the small internal space and the weld seam between the sewage pipe and the main pipeline, it is a corrosion-sensitive part of the pipeline. During the construction of the anti-corrosion layer, the coating quality is easily unqualified, and there is a great corrosion hidden danger. During the overhaul of the unit, the anti-corrosion construction of the sewage pipe and weld seam is often ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the inner wall of the sewage pipe and the welding area on the main seawater pipe of the nuclear power plant cannot be painted normally, and to design a device that can carry out the coating operation in a narrow space where the field of vision cannot be reached

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