Centrifugal compressor surge protection device based on dynamic control

The utility model discloses a centrifugal compressor surge protection device based on dynamic control, which belongs to the technical field of turbine type centrifugal compressors and comprises a compressor, a first-section anti-surge valve, a second-section anti-surge valve, an original PLC (programmable logic controller), an industrial personal computer, a photoelectric switch, an optical fiber junction box, an optical fiber and a network cable. The first-section anti-surge valve and the second-section anti-surge valve are installed at an outlet and an inlet of each section of the compressor respectively, the original PLC achieves real-time communication with the industrial personal computer through the photoelectric switch, the optical fiber junction box and optical fibers, and the industrial personal computer achieves dynamic analysis according to compressor parameters fed back to the original PLC. According to the utility model, the defect that the anti-surge valve is fully opened after the traditional t