A pipeline inner wall spraying robot and spraying method

Abstract

The invention discloses a pipeline inner wall spraying robot and a spraying method, comprising a support plate and a walking mechanism, an air supply mechanism is arranged at one end of the top of the support plate, an air outlet pipe is arranged at the left end of the air supply mechanism, and an air outlet pipe is arranged on the left side of the air supply mechanism. And the top of the support plate is provided with a material spraying machine, the left end of the material spraying machine is provided with a connecting pipe, the top left end of the support plate is provided with a vertical plate 1 and a vertical plate 2, the top of the vertical plate 1 is provided with a material spraying pipe, and the vertical plate There is a hot air conversion mechanism on the upper side of the material spraying pipe, an air acceleration tube is arranged between the hot air conversion mechanism and the air outlet pipe, and an air wall mechanism is installed on the left end of the hot air conversion mechanism. The outer side is provided with a spray tube rotation mechanism. Beneficial effects: the invention can improve the anti-corrosion and anti-rust ability of the pipeline; and can effectively prevent the powder pollution robot generated during spraying; and can increase the temperature near the spraying material in the pipeline and improve the quality of spraying.

Description

technical field [0001] The invention belongs to the technical field of pipeline spraying robots, in particular to a pipeline inner wall spraying robot and a spraying method. Background technique [0002] Pipeline engineering plays a very important role in the core industries of the national economy such as oil, natural gas, nuclear industry, water supply and drainage, and pipeline transportation. For buried pipelines operating outdoors, after nearly 30 years of operation, the protective layers of the inner and outer walls of the pipeline have aged or even severely corroded. In order to ensure the normal transportation of pipelines, technicians are required to spray anti-corrosion coatings on the inner and outer walls of pipelines. [0003] Chinese Patent No. CN103316817B discloses a pipeline spraying robot, which realizes uniform spraying through two parts of a spraying mechanism and a traction mechanism. Each part is easy to manufacture, has a low cost, and is convenient f...

AI Technical Summary

Problems solved by technology

However, during the spraying process of the robot, the spray material is very easy to fall on the robot, so that after the robot comes out of the pipeline, it will pollute the nearby environment and the physical and mental health of the personnel. In winter in the northern region, due to the low temperature, the quality of spraying will be greatly reduced, resulting in a decrease in anti-rust ability

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