METHOD TO IMPROVE EFFICIENCY OF AXIAL MULTISTAGE COMPRESSOR OPERATION Russian patent published in 2014 - IPC F04D29/58 F02C7/143 F02C3/30 

FIELD: machine building.

SUBSTANCE: method to improve efficiency of axial multistage compressor operation is implemented by the injection of water. Water is supplied into the air flow through calibrated outlet channels provided on the surface of guide vane blades. The water is injected under the saturation temperature corresponding to the sum of local pressure in the compressor stages and pressure difference in the said outlet channels. Water injection is started in those compressor stages where temperature of the environment becomes higher than the water saturation temperature at local pressure in compressor stages.

EFFECT: reduction of power consumed by a compressor due to the determination of optimal place and parameters of water injected into the flowpath of a multistage compressor.

2 cl, 4 dwg