自动排流柜的设计

杂散电流对地铁隧道结构钢筋及地下金属设施产生严重的腐蚀,为此需装设排流网及排流柜。分析了排流法的工作原理,讨论排流的不同工作状态及其对杂散电流腐蚀和轨道交通安全的影响。在阐述自动排流基本原理的基础上,设计了一种能自动实现合理排流的排流柜。该装置可独立使用,也可与杂散电流自动监测系统配套使用,把杂散电流的危害降至最低。

Design of the Automatic Drainage Cabinet

The stray current occurs in the running of metro trains,and often causes serious corrosion of the structural steel reinforcement of metro tunnel and the underground metallic facilities.In this paper,the hazard of stray current and the working principle of the automatic drainage method are introduced.On this basis,the design of an automatic drainage cabinet is discussed,which could be used independently or together with the automatic monitoring system for stray current,aiming at decreasing its hazard to the lowest possible level.