Abstract: Abstract:The sea creatures grow and adhere to inside of seawater pipe and cooling equipments, which leads to increasing of seawater flow resistance, decreasing of heat exchange efficiency and formation of biological corrosion. Taking Guangdong Huizhou LNG Power Generation Company Limited as example, the application of the electrolyzed seawater chlorination device to produce sodium hypochlorite was introduced. The application effect shows that to use the device in the seawater system of the coastal power plant can effectively prevent the adherence and growing of the sea creatures.

Key words: Keywords:LNG power plant, coastal power plant, biological corrosion, seawater electrolysis, sodium hypochlorite