1. Common methods for external corrosion protection of steel pipes:
Using the cathodic protection method alone is not economical due to the large power consumption. Therefore, the combined protection of the anti-corrosion layer and cathodic protection, the cathodic protection that will be concentrated on the exposed metal surface at the defects of the anti-corrosion layer, etc., is the most economical protection form. “Combined protection” is a protection method “mainly based on anti-corrosion layer and supplemented by cathodic protection”.
2. Anti-corrosion treatment inside the pipeline:
Main anti-corrosion measures: anti-corrosion layer and cathodic protection. The anti-corrosion layer mainly plays an isolation role in metal corrosion control. The metal exposed at the defect and the part covered by the anti-corrosion layer form a localized corrosion cell with a small anode and a large cathode, which 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 needed for pipeline corrosion and protection, and the basic introductory course of external anticorrosion measures for metal pipelines.
3. Steel pipe outer anti-corrosion material:
The external anti-corrosion measures of metal pipes will be beneficial. Polyethylene and polypropylene tapes to assess the corrosion status of pipelines and the safety risks of pipeline operations.
4. Anticorrosion treatment of steel pipes:
Combining a variety of detection methods, a set of proprietary external anti-corrosion layer detection technology is summed up, which can use advanced instruments and technologies without excavation and without affecting the normal operation of the pipeline. Carry out comprehensive and systematic detection of defects, accurately locate the damaged point, evaluate the risk, integrity, and operation status of the pipeline, analyze the cause of pipeline corrosion and put forward repair suggestions, repair the damaged anti-corrosion layer of the pipeline in time, and maintain and repair the pipeline sections with severe local corrosion. Extend pipe life.
Post time: Mar-08-2023