杂散电流对铁秦线凌海站输油管道的影响

Effect of the Stray Current on Oil Pipeline of Linghai Station in Tieqin Pipeline

杂散电流在土壤中的强度和方向是变化不定的,它们来自多种多样的杂散电流源。电气化铁路、以接地为回路的输电系统等的客观存在,不可避免地会产生杂散电流,并使埋地管道因杂散电流而产生腐蚀。通过对铁秦线凌海站输油管道电位的测量,对比了凌海站全年不同月份的电位图,从而进一步分析杂散电流对输油管道的影响及在不同温度下对杂散电流的变化情况。

The intensity and direction of stray currents in the soil are volatile, they come from a variety of stray current sources. Electrified railways and power transmission systems with ground-loop will inevitably produce stray currents, and the stray current can cause buried pipelines corrosion. In this article, through measuring the potential of oil pipeline of Linghai station in Tieqin pipeline, potential maps of the oil pipeline of Linghai station in different months in whole year were compared, and effects of the stray current on the pipeline were analyzed as well as the change rule of the stray current with temperature.