1. Common methods for external anticorrosion of
steel pipes. It is not economical to use cathodic protection alone because of too much power consumption. Therefore, the combined protection of anti-corrosion layer and cathodic protection is adopted, and the cathodic protection of centralized treatment on the exposed metal surface at the defects of the anti-corrosion layer is an economical form of protection. "Joint protection" is a protection method "mainly based on anti-corrosion layer and supplemented by cathodic protection".
2. Anti-corrosion treatment inside the
steel pipeline. Main anti-corrosion measures: anti-corrosion layer and cathodic protection. The anti-corrosion layer mainly plays the role of isolation in metal corrosion control. The exposed metal at the defect and the part covered by the anti-corrosion layer form a localized corrosion cell of small anode and large cathode, which in turn will accelerate the corrosion rate of the exposed metal. Therefore, the effect of using anti-corrosion layer protection alone is not ideal. Prepare the tools required for
steel pipeline corrosion and protection, the basic introduction to the external anti-corrosion measures of
steel pipelines.
3. External anti-corrosion materials of
steel pipes. The external anti-corrosion measures of
steel pipes will be reined in. Polyethylene and polypropylene tapes to assess the corrosion status of
steel pipelines and the safety risks of
steel pipeline operation.
4.
Steel pipeline anti-corrosion treatment. Combining a variety of detection methods, a set of proprietary external anti-corrosion layer detection technology can be used to implement external anti-corrosion layer using advanced instruments and technologies without excavation and without affecting the normal operation of the pipeline. Conduct a comprehensive and systematic inspection of the defects existing in the
steel pipeline body, accurately locate the damaged point, evaluate the
steel pipeline risk, integrity and operation status, analyze the cause of
steel pipeline corrosion and put forward repair suggestions, and repair the damaged anti-corrosion layer of the
steel pipeline in time.
Steel pipe sections are maintained and repaired to extend
steel pipeline life.
