摘要
通过对电磁电流衰减法、直流电位梯度法、密间距电位测试技术、杂散电流测试仪在埋地长输管道外防腐层检测上的应用研究,并根据山东省埋地长输管线的分布特点,提出了联合检测方法。该项技术可以对管道外防腐层整体状况进行评估、判定破损点处管道腐蚀状况、破损点的定位及面积大小的估算,评价阴极保护效果,确定管道的维修次序。
Based on the application studies of PCM, DCVC, CIPS and SCM in protective coating for long - distance buried pipeline and the characters of long- distance buried pipeline in Shandong, the synthetic inspection technology of protective coating for long - distance buried pipeline is proposed. For the long - distance buried pipeline, this technology can be used to assess the integral status of the protective coating, to judge the corrosive status of the pipeline around dilapidating point, to localize and evaluate a really dilapidating point, to estimate the effect of CP, and to arrange the maintenance＇ s order.
出处
《压力容器》
北大核心
2006年第2期49-51,共3页
Pressure Vessel Technology
关键词
埋地管道
外防腐层
检测技术
破损点
buried pipeline
protective coating
inspection technology
dilapidating point of coating
