电流法在阀室阴极保护绝缘故障排查中的应用  

Application of Current Method in Troubleshooting of Cathodic Protection Insulation in Valve Chamber

作　　者：刘文会[1] 郝晓平 滕延平[3] 温玉芬[3] 费雪松[3] 孙万磊 王辛楼 丁秉军 张连军[3] LIU Wen-hui;HAO Xiao-ping;TENG Yan-ping;WEN Yu-fen;FEI Xue-song;SUN Wan-lei;WANG Xin-lou;DING Bing-jun;ZHANG Lian-jun(PetroChina Pipeline R&D Center,Langfang 065000,China;CNPC Security Department,Beijing 100007,China;PetroChina Pipeline Company,Langfang 065000,China)

机构地区：[1]中国石油管道科技研究中心,河北廊坊065000 [2]中国石油天然气集团有限公司保卫部,北京100007 [3]中国石油管道公司,河北廊坊065000

出　　处：《管道技术与设备》2020年第5期59-62,共4页Pipeline Technique and Equipment

摘　　要：文中采用电流环、钳型电流表等电流测量设备,精确测量管道或者其他部位的电流大小及方向,结合开挖检查,查找出阀室内绝缘故障的位置。对某输油管道阀室的阴极保护绝缘故障进行检测,发现阀室内电伴热金属丝与管道存在搭接,导致阀室内管道阴极保护欠保护。In this paper,current measuring equipment such as current loop and clamp ammeter was used to accurately meas-ure the current size and direction of pipeline or other parts.Combined with excavation inspection,the insulation fault location of valve chamber was found out.The failure of cathodic protection insulation in a valve chamber of an oil pipeline was detected,and it was found that the electric hot wire in the valve chamber overlapped with the pipeline,leading to the underprotection of cathod-ic protection of the pipeline in the valve chamber.

关 键 词：RTU阀室 阴极保护 电流环 钳型电流表 执行器 电伴热 

分 类 号：TE9[石油与天然气工程—石油机械设备]