某轮外加电流阴极保护系统工作异常的原因

摘要

介绍了外加电流保护装置在某轮的使用情况,建立了阴极保护系统的等效电路图.从恒电位仪输出电压、电流异常的现象出发,分析了输出电压和电流变小的可能原因,确定了海生物附着是恒电位仪异常的原因.最后,列举了常见的系统管理错误.%The causes of the decreases in working voltage and current of an impressed current cathodic protection system in a ship were analyzed theoretically. The mathematical model of the equivalent circuit was established. And the halobios attached to the ship hull was proved to be the cause of the abnormal phenomenan. Some usual managing mistakes are ticked off.