The seawater electrochemical corrosion and adhering stain have been two major factors endangering the security of ship seawater system application. The apposition growth of the marine life in the seawater system will generate the blocking of the seawater pipeline, valve, filter, various coolers and sea chests, so as to reduce the working efficiency of the water pump, cooler and heat exchanger, increase the fuel consumption of the power device and decrease the service life of equipment. Consequently, it influences the overall work efficiency of the ship. Additionally, the adhesion of the marine life on the surface of the seawater pipeline system will form the oxygen concentration cell on the surface of the metal to speed up the local corrosion and cause the pitting perforation.
Situation of Equipment Corrosion and Marine Life Adhesion