埋地钢制管道杂散电流的检测与防护技术

近年来国内高压输电系统、电气化铁路、城市轨道交通等基建项目飞速发展,这些基础设施在改善了人民日常生活水平的同时,也给埋地钢质管道的安全运营带来了十分严重的影响。受杂散电流影响,埋地钢质管道的阴极保护系统无法正常运行,管道腐蚀速度加快,杂散电流干扰严重的管段可能在短时间内就发生穿孔失效事故,当前运营单位对杂散电流检测手段较为单一,对于杂散电流往往无法根治,通过对管道电位科学的长时间监测以及通过管中电流法实施检测,为钢质管道杂散电流的防护与治理提供有效解决方案。

Detection and protection technology of stray current in buried steel pipeline

in recent years,domestic infrastructure projects such as high-voltage transmission system,electrified railway,urban rail transit,etc.have developed rapidly.These infrastructures not only improve people's daily living standards,but also have a very serious impact on the safe operation of buried steel pipelines.Due to the influence of stray current,the cathodic protection system of buried steel pipeline can not operate normally,the corrosion speed of pipeline is accelerated,and the pipe section with serious stray current interference may have perforation failure accident in a short time.At present,the detection means of stray current in the operation unit is relatively simple,and the stray current is often unable to be cured.Long-term monitoring and communication of pipeline potential science are adopted The current method is used to detect the stray current in the pipeline,which provides an effective solution for the protection and treatment of stray current in the steel pipeline.