埋地管道地铁直流杂散电流检测与防护的研究现状  

Research Status of Detection and Protection of Subway DC Stray Current of Buried Steel Pipelines

作　　者：郭勇[1,2] 丁继峰 王港[2] 李向阳 GUO Yong;DING Ji-feng;WANG Gang;LI Xiang-yang(Central Iron and Steel Research Institute,Beijing 100081,China;Qingdao NCS Testing and Protection Technology Co.,Ltd.,Qingdao 266071,China)

机构地区：[1]钢铁研究总院,北京100081 [2]青岛钢研纳克检测防护技术有限公司,山东青岛266071

出　　处：《材料保护》2021年第7期133-139,共7页Materials Protection

摘　　要：地铁成为城市交通运输的主要方式,给人们出行带来便利的同时也造成了埋地管道直流杂散电流干扰,成为管道运行的安全隐患,地铁杂散电流的检测与防护成为研究的重点。对目前地铁对埋地管道杂散电流干扰的检测方法进行了介绍,分析了杂散电流的干扰特征,列举了地铁杂散电流泄露电流的估算方法,研究了埋地管道杂散电流干扰的腐蚀防护措施,探讨了目前国内外对地铁杂散电流干扰的研究现状,并对其下一步的研究重点进行了展望。The subway has become the main way of urban transportation,which is convenient for people to travel,but also causes the DC stray current interference of buried pipeline,which becomes the hidden danger of pipeline operation.The detection and protection of subway stray current has become the focus of research.In this paper,the detection methods of stray current interference for buried pipelines caused by subway were introduced and the interference characteristics of stray current was analyzed.Meanwhile,the estimation methods of leakage current for subway stray current were enumerated and the corrosion prevention methods to the stray current interference of buried steel pipelines were studied.Finally,the research status of subway stray current interference at home and abroad was discussed,and the future research focus on next step was prospected.

关 键 词：直流杂散电流 检测方法 估算方法 腐蚀防护措施 排流 

分 类 号：TG172[金属学及工艺—金属表面处理]