在役管道绝缘接头绝缘性能测试技术应用  

Application of Insulation Test Technology of Insulated Joint for In-service Pipeline

作　　者：陈振华[1] 薛致远[1] 于少鹏 单天智 徐承伟[1] 陈新华[1] 

机构地区：[1]中国石油管道研究中心,河北廊坊065000 [2]中国石油管道公司锦郑管道运行筹备组,河北廊坊065000 [3]山东中油天然气有限公司,山东济南250000

出　　处：《管道技术与设备》2013年第2期1-3,共3页Pipeline Technique and Equipment

摘　　要：针对在役管道绝缘接头的漏电问题及其对管道阴极保护系统运行的影响,文中结合实际案例,介绍了通断电位法和PCM漏电率测量法在绝缘接头绝缘性能测试上的应用。结果表明:综合运用通断电位法和PCM漏电率测量法,可实现绝缘接头绝缘性能的定量评价,且当绝缘接头漏电率≤15%时,基本不影响阴极保护系统的正常运行。同时,运用Matlab/Simulink仿真平台进行电路模型分析,提出了漏电率测试中几种特殊情况的分析方法,可用于指导现场的检测工作。This paper introduced the test principle and superiority of testing ON/OFF potential and PCM leakage of electrici- ty to evaluate insulation performance of insulated joint for in-service pipeline. The test data indicate that insulation performance of insulated joints can be quantitatively evaluatedreliably, based on these two methods, and if PCM leakage of electricity is not more than 15% ,then the CP system will not be seriously affected. Meanwhile, the eirueuit simulation model of PCM Leakage of elec- tricity testing is constructed based on Matlab/Simulink software. Some problems are discussed here. The conclusion drawn ean be used for guiding the field testing work.

关 键 词：绝缘接头 通断电位 PCM漏电率 仿真模型 

分 类 号：TE9[石油与天然气工程—石油机械设备]