Spraying device used for pipeline repairing and use method of spraying device

Abstract

The invention relates to a spraying device used for pipeline repairing and a use method of the spraying device. The spraying device comprises a pneumatic motor fixedly installed at the discharging endof a material supply pipe, and a rotating cup which is in drive connection to the end, away from the material supply pipe, of the pneumatic motor and communicates with a communication pipe, wherein the communication pipe is used for coatings to pass and communicates with the material supply pipe. Injection hole sets which are arranged in a wave shape are formed in the cup wall of the rotating cup. The pneumatic motor is started and drives the rotating cup to rotate so that the coatings in the rotating cup can rotate and be atomized at a high speed and then can be injected outwards from the injection hole sets. By means of the spraying device used for pipeline repairing and the use method of the spraying device, the problem that use of the electric motor is dangerous is solved effectively,the pneumatic motor is used for driving the rotating cup to rotate, safe construction is ensured, the single-time long-distance spraying can be achieved, in addition, the structure of the rotating cup is optimized, and the coatings can be evenly sprayed to the inner wall of a pipeline.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a spraying device for repairing pipelines and an application method thereof. Background technique [0002] At present, long-term running water supply pipelines are affected by factors such as the underground environment, raw water quality, and pipeline materials, which will inevitably lead to defects such as pipeline corrosion, damage, scaling, and oxidation. A coating is formed inside to repair the above defects. However, most of the existing spraying equipment uses a rotary cup to drive and connect with an electric motor. Spraying to the pipe wall, however, when this method is actually used, the electric motor will be damaged due to high temperature for a long time due to long-term high-speed operation, and even in high-temperature weather, the paint will be atomized and form dust when encountering a high-temperature motor. There is also the danger of leakage and short cir...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects of the prior art, provide a spraying device for pipeline repair and its use method, solve the problem of dangerous use of electric motors, and use air motors to drive the rotary cup to ensure construction safety and can Realize a single long-distance spraying, and optimize the structure of the rotary cup, so that the paint is evenly sprayed on the pipe wall

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