Control system for improving converter gas recovery efficiency

The utility model discloses a control system for improving the gas recovery efficiency of a converter. The control system comprises a main power switch, a three-way valve recovery position, a three-way valve diffusion position, a water-sealed valve, a local/remote change-over switch, a local relay, a remote relay, a field operation box control loop and a remote operation control loop, the main power switch is connected with input ends of the local/remote change-over switch, the field operation box control loop and the remote operation control loop, the local/remote change-over switch comprises a local auxiliary change-over point and a remote auxiliary change-over point, the local auxiliary change-over point is connected with a coil of the local relay, and the remote auxiliary change-over point is connected with a coil of the remote relay. The remote auxiliary conversion point is connected with a coil of the remote relay; according to the utility model, the operation stability and reliability of two core devic