Seawater and warm seawater multi-pump-station temperature complementary water supply method for LNG station gasifier

The invention discloses a seawater and warm seawater multi-pump-station temperature complementation water supply method for LNG station gasifiers, which comprises the following steps: a temperature complementation water supply device is built, and the temperature complementation water supply device comprises a plurality of water inlet pump stations, a closed water mixing tank, a plurality of water outlet pump stations and a plurality of gasifiers; whether the pressure and flow of the water inlet pump station, the water outlet pump station and the closed mixing tank are controlled or not is judged according to the number ratio of the water outlet pump station to the gasifiers, and a control instruction is generated; mixing of seawater and warm seawater and output operation after mixing are conducted on the basis of the control instruction, and seawater and warm seawater multi-pump-station temperature complementary water supply of the LNG station gasifier is achieved. Seawater and warm seawater are mixed throug