阀室阴极保护与防雷接地兼容性解决方案  

Solution to the compatibility between cathodic protection and lightning protection grounding of valve chamber

作　　者：刘文会 滕延平[1] 焦春锋 毕武喜 刘建华 LIU Wenhui;TENG Yanping;JIAO Chunfeng;BI Wuxi;LIU Jianhua(PipeChina North Pipeline Company;Xi'an Oil and Gas Transportation Branch,PipeChina North Pipeline Company;School of Materials Science and Engineering,Beihang University)

机构地区：[1]国家管网集团北方管道公司,河北省065000 [2]国家管网集团北方管道公司西安输油气分公司 [3]北京航空航天大学材料科学与工程学院

出　　处：《油气储运》2021年第8期950-954,共5页Oil & Gas Storage and Transportation

基　　金：国家管网集团北方管道有限责任公司科研课题“RTU阀室阴极保护与防雷防静电接地兼容性研究”,20160207。

摘　　要：由于设计或施工缺陷,长输油气管道阀室容易出现阴极保护绝缘失效故障,严重威胁管道的运行安全。通过研究相关设计文件,并结合现场生产实践经验,提出了阀室阴极保护绝缘故障检测排查流程,可以准确地对绝缘失效部位进行定位,并根据绝缘失效类型提出了有针对性的处理方法。制订了阀室阴极保护绝缘与接地兼容性解决方案,并通过现场实践验证了方案的有效性,证明该方案可以在满足阀室内电气仪表设施绝缘需求的同时,有效地保证绝缘设施免受雷电的损害。研究结果对提升长输油气管道的运行管理水平具有重要的现实意义。Due to the design or construction defects,the insulation for cathodic protection in the valve chambers of long-distance oil and gas pipelines is prone to failure,which seriously threatens the safe operation of the pipelines.By studying the relevant design documents and referring to the field production experience,the fault detection and elimination process of insulation for cathodic protection in valve chambers was proposed,which could accurately locate the insulation failure and provide the targeted treatment method according to the type of insulation failure.In addition,the solution to the compatibility of cathodic protection insulation and lightning protection grounding was put forward,and the effectiveness of the solution was verified through field practice,which proves that the solution could not only meet the insulation requirements of electrical instrument facilities in the valve chambers,but also effectively guarantee the insulation facilities from lightning damage.Moreover,the research results are of important practical significance for improving the operation and management level of the long-distance oil and gas pipelines.

关 键 词：阀室 阴极保护 绝缘设施 防雷接地 电流法 固态去耦合器 

分 类 号：TE832[石油与天然气工程—油气储运工程]