摘要
针对杂散电流对地铁(或轻轨)设施、附近公用设施管线和其他埋地金属结构物的电化学腐蚀等问题,分析了地铁杂散电流的产生、影响因素及危害,总结了目前地铁(或轻轨)中所采用检测和防治地铁杂散电流腐蚀的主要措施和方法;分别从减少地铁杂散电流泄漏和降低杂散电流腐蚀程度两个方面分析了当今主要杂散电流腐蚀防治和监测方案的利弊;着重介绍了杂散电流腐蚀的防护和排流柜的设计原理及运用。研究结果表明:对地铁(或轻轨)设施的杂散电流防护应遵循"以防为主,以排为辅,防排结合,加强监测"的原则,并通过建立一套杂散电流综合监测与防治系统实现最佳的排流效果,彻底消除杂散电流对轨道交通系统的损害。
Aiming at the stray current which may lead to electrochemical corrosion on the subway（or light rail）facility, near utility lines and other buried metal structures, the generation, influencing factors and hazards of metro stray current were analyzed. The main measures and methods of detection and prevention of the metro stray current corrosion currently were summarized.From two aspects of reducing the metro stray current leakage and reducing the degree of stray current corrosion, pros and cons of these measures and methods were described. The protection of stray current corrosion and the principle and application of drainage cabinet were introduced. The results indicate that the principium of prevention of stray current on the subway （or light rail）facilities is ＂rely mainly on prevention while drainage subsidiary,combined with prevention and drainage, and strengthen detection.＂ A system should be created to monitor and control the stray current. The system controls the drainage of the cabinet according to the monitoring situation to make the result perfect, then completely removes the stray current damage of urban railway transit system.
出处
《机电工程》
CAS
2013年第1期102-107,共6页
Journal of Mechanical & Electrical Engineering
关键词
轨道交通
杂散电流
防护
电化学腐蚀
自动监测
排流
rail transit
stray current
protection
electrochemical corrosion
monitor voluntarily
automatic drainage
