Multi-valve self-checking device suitable for industrial system

The invention relates to a multi-valve self-checking device suitable for an industrial system. The multi-valve self-checking device is technically characterized by comprising a main control computer, a data acquisition and output unit, a plurality of valve limit switches and a plurality of valve opening position sensors; the data acquisition and output unit is connected with the plurality of valve limit switches, the plurality of valve opening position sensors, a plurality of two-position valves to be detected and an adjusting door; and the valve limit switches and the valve opening position sensors are used for detecting valve states and transmitting the valve states to the data acquisition and output unit; and the main control computer analyzes acquired data and generates a detection control command, and the main control computer sends the detection control command to the two-position valves and the adjusting door through the data acquisition and output unit, so that the self-checking function of the multip