海洋工程钢结构阴极保护设计阳极重量要同时满足物料概算和初始电流密度的需求。为达到保护要求, 两者需取其大值, 从而造成阳极用量过大的浪费。而通过使用新型阳极, 可以提高阳极表面积与体积比值, 即发生电流与阳极质量的比值, 减少阳极材料的浪费。通过室内模拟阴极保护试验测量系统, 对常规构型阳极(长条型)与新型阳极(翼型)的阴极保护效果进行对照比较, 从而确认新型阳极的电化学性能及实际可行性。结果表明,若以新型阳极替代常规方条型阳极, 便可在满足初期阳极发生电流需求情况下大大减少阳极重量, 从而避免阳极的浪费。

For offshore sacrificial anode cathodic protection systems, the anode weight and initial current density are both requred. In order to achieve the requirements, a big value should be adopted, which may result in the waste of anode. The use of a new anode may improve the ratiod of surface area to volume and current to weight and thus reduce the waste of anode. The conventional configuration anode (long) was compared with a new type (airfoil type) anode through the cathodic protection measurement system to confirm the electrochemical properties and the practical feasibility of the new type anode. The results show that the replacement of new type (airfoil anode) anode to the conventional square strip anode can greatly reduce the weight of anode while the initial current also can be meeted, so as to avoid the waste of the anode.