Tail stage impeller anti-block adjusting device used for axial flow compressor

The utility model discloses a tail stage impeller anti-block adjusting device used for an axial flow compressor. The device comprises a differential pressure transmitter and a thermal resistor, a pressure transmitter and an anti-block valve, wherein the differential pressure transmitter and the thermal resistor are arranged on an inlet pipeline of the axial flow compressor and are used for measuring a differential pressure of the throat part of the axial flow compressor and the temperature of the inlet pipeline; the pressure transmitter is arranged on an outlet pipeline of the axial flow compressor and is used for measuring the pressure of the outlet pipeline of the axial flow compressor; the anti-block valve is arranged on a blow-down pipeline of the axial flow compressor; an anti-block control system is the core part of a control device; the anti-block control system is internally provided with a function generator, a temperature correction unit, a low value selector and a manual operator; and the security