两种钢质管道腐蚀检测新技术

Two New Technologies about Pipeline Corrosion Test

管道腐蚀检测相关技术主要包括:管道沿线环境调查,管线探测与测绘,管道防腐层完整性检测,管体检测,管道阴极保护系统检测,管道泄漏检测、监测及腐蚀管道的安全评价。管道腐蚀的根本在于管体,埋地钢质管道的腐蚀防护广泛采用施加防腐蚀涂层并附加阴极保护。针对埋地钢质管道防腐层检测评价、管体检测评价这两方面内容,介绍两种管道腐蚀检测新技术:综合参数异常评价法、管道壁厚TEM检测方法。

Pipeline corrosion detection technology includes environmental investigation,pipeline detection and mapping,pipe coating integrity tests,tube detection,piping cathodic protection system testing,leak investigation,monitoring and corrosion pipeline safety evaluation.To prevent the fundamental pipeline corrosion in the tube,a buried steel pipeline corrosion protection method is widely used on anti-corrosion coatings plus additional cathodic protection.For buried steel pipeline coating tests and the tube tests,this paper introduces two new technologies about pipeline corrosion tests：synthetic parameter abnormality evaluation and pipe wall thickness TEM detection methods.