Study on Cooling Water Source Seawater Filtration System of Nuclear Power Plant

Abstract

Abstract Littoral nuclear power plants at home and abroad use seawater as cooling source, which is the cooling system of nuclear island and conventional island. In recent years, many marine organisms such as jellyfish, phaeocystis globosa, hyacinth melon and prawn have affected the safety of water intake of nuclear power plant, and even led to the event of unit load reduction operation, machine trip and even reactor trip. In this paper, by analysing the existing problems of cold source seawater filtration system in nuclear power plant, the plane layout of water intake project is optimized, and the sea biological interception filtration system is established. Relying on the large offshore platform, online monitoring of the incoming sea creatures and the status of interceptors can realize the mechanized automation of intercepting and cleaning, and improve the reliability and efficiency of intercepting and cleaning. Reduce manual intervention and temporary network layout, reduce the risk of marine personnel operation, and improve the ability to withstand severe weather and large-scale outbreak of marine organisms. It ensures the safe operation of nuclear power plant.