摘要
针对轨道交通杂散电流的动态性,采用杂散电流自动监测系统,对上海天然气主干网高压管道进行管地电位及土壤电位梯度等测试,分析轨道交通杂散电流对主干网产生腐蚀干扰的形态和传播机理,并尝试采用不同的排流方式开展试点,初步提出具有可操作性的防护措施,以消除或减少杂散电流对主干网的腐蚀干扰影响,从而提高天然气主干网运行的安全可靠。
According to the dynamic nature of metro stray current, a series of experimental investigation on pipe-to-soil potential and potential gradient in soil is carried out. This paper analyzes morphology and propagation mechanism of stray current corrosion interference on natural gas main pipeline. Then, it puts forward feasible protection measures by using different ways of discharge pilot, in order to eliminate or reduce the influence of stray current corrosion and ensure the safety of main pipeline network.
出处
《上海煤气》
2016年第2期6-11,31,共7页
Shanghai Gas
关键词
天然气管网
杂散电流
防护措施
natural gas main pipeline network
stray current
protection measures
