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本文利用自行设计并加工的动态模拟装置，探讨海水输送泵的腐蚀机理。实验结果表明：高流速运行中的海水泵腐蚀破坏之所以如此严重，主要是由于腐蚀电化学因素与流体力学因素二者间的协同效应所致。施加阴极电流，由于抑制了腐蚀的电化学因素，从而使二因素间的协同效应大幅度减弱，腐蚀破坏显著降低。据此，对现场高流速运行中的海水泵，实施牺牲阳极的阴极保护与涂料联合防护，经二年多的应用研究证明：泵体内无任何腐蚀迹象，几乎完好如初，涂料亦无任何脱落和缺损，保护效率达９０％以上，大大延长了泵的使用寿命。
In this paper, the dynamic simulation device designed and processed by ourselves is used to discuss the corrosion mechanism of seawater pump. The experimental results show that the reason why the corrosion damage of seawater pump in high flow rate operation is so serious is mainly due to the synergistic effect between electrochemical corrosion and hydrodynamic factors. The application of cathodic current, due to inhibition of the electrochemical corrosion factor, so that the synergies between the two factors greatly reduced, significantly reduced corrosion damage. Accordingly, on the scene of high-speed operation of the sea water pump, the implementation of sacrificial anode cathodic protection and paint joint protection, after more than two years of applied research shows that: pump body without any signs of corrosion, almost intact as early as paint without any shedding and Defect, protection efficiency of 90% or more, greatly extending the life of the pump.