一、前言地下油气管道和金属容器的使用寿命,直接受防腐绝缘层质量好坏的影响,特别是地下管道的外防腐绝缘层,如有损伤露铁或微孔缺陷,就会在该处发生电化学锈蚀,造成管道穿孔事故,轻者漏油漏气,重者会使管道报废。如果对防腐绝缘层重视并用检漏仪器进行质量检测,就会收到显著效果。 I. Preface The service life of underground oil and gas pipelines and metal containers is directly affected by the quality of the anti-corrosion insulation layer, especially the outer anti-corrosion insulation layer of underground pipelines, where defects such as dew or micropore damage occur Electrochemical corrosion, resulting in perforation of the pipe, light oil leakage, heavy pipe scrap. If you attach importance to the anti-corrosion insulation and leak detection equipment for quality testing, you will receive significant results.