Study on corrosion simulation and anti-corrosion of marine B10 seawater pipe system

A corrosion simulation model of typical seawater piping system is established based on COMSOL which is multi-physical field coupling evaluation software. The corrosion simulation model of typical seawater piping system is establishedacording to the distribution of velocity, streamline, pressure, oxygen concentration and corrosion rate. It's found that velocity have great influence on oxygen concentration distribution, and thereby cause galvanic corrosion of that oxygen concentration to be different. Aiming at the weak link of pipeline corrosion in simulation calculation, three corrosion protection optimization measure are put forward, such as appropriately increasing that ben curvature of elbow, adopting cathode protection elbow couple by steel pipe and B10 pipe,and adding steel corrugated pipe in front of equipment. These can contribute to the life extension of marine B10 seawater piping system.