Pipeline internal anti-corrosion device

Abstract

The invention relates to the field of pipeline anti-corrosion, in particular to a pipeline internal anti-corrosion device which includes a carrying trolley for moving in the axial direction of a pipeline, a feeding mechanism arranged on the carrying trolley, a paint transfer mechanism, an automatic spraying mechanism, a rotating driving mechanism and an automatic screeding mechanism. Anti-corrosion paint is put in the feeding mechanism, the feeding mechanism is used for supplying the anti-corrosion paint and stirring the anti-corrosion paint evenly. The output end of the feeding mechanism is connected with the input end of the paint transfer mechanism, the output end of the paint transfer mechanism is connected with the input end of the automatic spraying mechanism which is used to executethe pipeline inner wall spraying work, the output end of the rotating driving mechanism is connected with the automatic spraying mechanism in a transmission mode, the rotating driving mechanism is used to drive the automatic spraying mechanism to rotate, and the automatic screeding mechanism rotates synchronously with the automatic spraying mechanism for screeding the paint sprayed on the inner wall of the pipeline. After the automatic spraying mechanism works, the automatic screeding mechanism is used to screed a coating immediately, the paint is evenly coated on the inner wall of the pipeline without spiral joints, and missing-spraying is avoided.

Description

technical field [0001] The invention relates to the field of pipeline anticorrosion, in particular to a pipeline internal anticorrosion device. Background technique [0002] Corrosion prevention of pipes refers to the measures to slow down or prevent the corrosion and deterioration of pipelines under the chemical and electrochemical action of internal and external media or the metabolic activities of microorganisms. In order to improve the service life of the pipeline, slow down the corrosion of the pipeline from soil, air and transport media (oil, natural gas, etc.). Most of the pipelines for transporting oil and gas are located in complex soil environments, and the transported media are mostly corrosive, so the inner and outer walls of the pipelines may be corroded. Once the pipeline is corroded and perforated, it will cause oil and gas leakage, which will not only interrupt the transportation, but also pollute the environment, and may even cause fire and harm. [0003...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide an anti-corrosion device in the pipeline. This technical solution solves the problems of laborious and labor-intensive and low-efficiency when manually smoothing the anti-corrosion coating on the inner wall of the pipeline. The anti-corrosion device works in the automatic spraying mechanism. Immediately afterwards, the coating is smoothed with an automatic troweling mechanism, and the coating is evenly coated on the inner wall of the pipe without spiral joints to avoid missing coating

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