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通过室内模拟试验装置,研究源于强制电流阴极保护系统的直流杂散电流对外部无阴极保护管道干扰的缓解方法,包括跨接电阻法、牺牲阳极法和金属屏蔽线法.文中主要考察跨接电阻、牺牲阳极位置和材质、金属屏蔽线位置和连接方式等对不同干扰类型的缓解效果和规律,讨论不同缓解方法的适用性,并对不同干扰类型提出推荐方法及适用条件,可为实际工程应用提供借鉴.
Through the indoor simulation test device, this paper studies the mitigation methods of external non-cathodic protection pipeline from direct current stray current derived from forcurrent cathodic protection system, including crossover resistance method, sacrificial anode method and metal shielding method.The main study in this paper is to study the crossover Resistance and location and material of the sacrificial anode, the location and connection of metal shield wire and so on, and discusses the applicability of different mitigation methods, and puts forward the recommended methods and applicable conditions for different types of interference, which may be used for practical projects Application to provide reference.