数值模拟计算技术是研究牺牲阳极阴极保护效果的有效手段, 采用边界元数值模拟分析软件对船体压载舱牺牲阳极阴极保护进行了数值模拟分析。结果表明, 根据常规牺牲阳极设计, 常规数值计算压载舱内表面电位范围稍宽(即-800~-1 100 mV, 相对Ag/AgCl参比电极, 下同), 通过调整牺牲阳极位置, 表面保护电位范围收窄(即-890~-1 110 mV), 保护效果变好。

Numerical simulation calculation is an effective method to study the sacrificial anode cathodic protection. The boundary element method software was used to simulate the sacrificial anode cathodic protection of ballast tanks. The results showed that the potential distribution on the surface of ballast tank changed greatly(from -800 to -1 100 mV vs Ag/AgCl) according to general design, but the potential distribution changed slightly(from -890 to -1 110 mV vs Ag/AgCl), and the surface was protected better by adjusting the anode places.