埋地液化气管道外防腐层检测及评价

Inspection and Assessment of Anticorrosion Layer Outside of Buried Liquefied Gas Piping

介绍了对埋地液化气管道的非开挖外防腐层检测技术和评价方法。居民区的埋地液化气管道投入使用多年,需全面了解外防腐层的质量。采用非开挖的检测技术可以方便和有效地进行检测,并利于及时对破损点进行修复,同时对整个管道进行质量评价,根据评价等级确定检测周期和计划。

The technique of non - trench inspection and assessment for anticorrosion layer outside of＂ buried liquefied gas piping was introduced in this article, The buried liquefied gas piping in residence area has been put into use for lone time, and the anticorrosion layer is needed to exam. The use of non - trench inspection technique can be carried out conveniently and effectively, The damage point is also benefit to be repaired in time with this technique. At the mean time, it is favorable to the quality assessment for integral piping and the determination of periodical inspection plan to employ this method.