Design of automatic drainage control system of multistage pumping stations

A design scheme of automatic drainage control system of multistage pumping stations was introduced, and structure and main functions of the system were given. Key problems of the system were expounded as well as corresponding solutions from drainage mode of pump and multistage linkage function. Application shows that the system realizes unattended operation of multistage pumping stations with high drainage efficiency, correct monitoring data and stable and reliable running.