城镇燃气管道杂散电流检测方法研究

Study on Stray Current Detection Method of Urban Gas Pipeline

杂散电流腐蚀严重影响着城镇燃气管道的安全运行。目前国内标准中提出了很多种杂散电流检测方法,但是由于城镇燃气管道的特殊性导致一些方法不适用于燃气管道的杂散电流检测。本文汇总了常用的杂散电流检测方法,并指出了每种方法的适用性以及局限性。对在用燃气管道检验检测中如何选择合适的方法进行杂散电流检测提供一定的指导。

Stray current corrosion seriously affect the safe operation of urban gas pipelines.At present,many stray current detection methods were proposed in domestic standards,but some methods are not suitable for stray current detection in gas pipelines due to the particularity of urban gas pipelines.The common stray current detection methods were summarized and the applicability and limitations of each method were pointed out in this paper.It provides some guidance on how to select the appropriate method for stray current detection in inspection and testing of gas pipeline.