Detection, repair and corrosion control method of new and old pipelines

Abstract

The invention provides a detection, repair and corrosion control method of new and old pipelines. The method comprises the following steps that pipeline cleaning is performed, specifically, high-pressure purging is performed on the interiors of the pipelines through compressed air, and residual liquid and impurities in the pipelines are discharged; a cleaning solution and cooling liquid are addedinto a spiral airflow generator, and the pipelines are derusted through the compressed air which is generated by the spiral airflow generator and provided with the cleaning solution and the cooling liquid; waste produced during derusting is cleaned and recovered after derusting is performed; and repair coating is performed on the inner walls of the pipelines through a repair agent. The inner wallsof the pipelines are derusted by adding the cleaning solution and the cooling liquid into spiral airflow, the derusting effect is good, the derusting efficiency is high, meanwhile, the waste producedduring derusting is cleaned and recovered, environment pollution and resource wasting are effectively avoided, repair coating is performed on the inner walls of the pipelines after repair, and the corrosion resistance and rust resistance of the pipelines are improved.

Description

technical field [0001] The invention relates to the technical field of pipeline rust removal, and more specifically relates to a method for detecting, repairing and anticorrosion of old and new pipelines. Background technique [0002] The common water supply and gas supply pipelines in daily life are mostly galvanized iron pipes, which are prone to rust and scale after long-term use. Rust removal methods include the following: 1. Chemical cleaning method 2. Vibration method 3. Mechanical scraping method. The rust removal effect of the above methods is not ideal, the rust removal is not thorough, and the rust removal time is long. Produce chemical residue and dust, easy to pollute the environment; therefore, how to provide a method for derusting gas supply and water supply pipelines with good derusting effect, high derusting efficiency and no pollution has become a technical problem urgently to be solved by those skilled in the art. Contents of the invention [0003] A met...

AI Technical Summary

Problems solved by technology

[0002] The common water supply and gas supply pipelines in daily life are mostly galvanized iron pipes, which are prone to rust and scale after long-term use. Rust removal methods include the following: 1. Chemical cleaning method 2. Vibration method 3. Mechanical scraping method. The rust removal effect of the above methods is not ideal, the rust removal is not thorough, and the rust removal time is long. Produce chemical residue and dust, pollute environment easily; Therefore, how to provide a kind of derusting method of air supply and water supply pipeline with good derusting effect, high derusting efficiency and pollution-free, become a technical problem that those skilled in the art need to solve urgently