Anti-surge starting system and method for centrifugal compressor

The invention relates to the field of radial flow pumps, and discloses a centrifugal compressor anti-surge start-up system and method.The centrifugal compressor anti-surge start-up system comprises a heat exchange subsystem for introducing primary steam and materials to be concentrated, and a backflow pipe for secondary steam backflow is arranged between the heat exchange subsystem and an input port of the centrifugal compressor; an output port of the centrifugal compressor is communicated with an inlet, used for introducing primary steam, of the heat exchange subsystem; the high-pressure superheated water chamber is communicated with the flow regulating valve, the flow regulating valve is communicated with an input port of the centrifugal compressor through the mode switching valve, and the return pipe is communicated with the input port of the centrifugal compressor through the mode switching valve. The invention provides a mode of pre-supplementing flow and a mode of accelerating the arrival of the stable