Results of modeling parameters of prospective centrifugal natural gas compressors with inlet guide vanes

Possibilities of using centrifugal single-stage compressors with cantilever rotor, axial suction branch pipe and adjustable inlet guide vanes as part of gas-turbine gas-pumping units of linear compressor stations are considered. To develop a standard range of promising centrifugal compressors in the power range from 16 to 35 MW, the results of both experimental studies of model compressor stages and the results of numerical optimization calculations were used. The procedure of modeling of gas-dynamic characteristics and parameters of flow part of full-scale centrifugal compressors with consideration of additional possibility for adjustment of inlet guide vane rotation is presented. Geometrical dimensions and gas-dynamic characteristics of designed compressors in power class 16, 25, 32 and 35 MW are obtained on the basis of the presented calculation algorithm. A preliminary study of the concept for the creation of such compressors and their integration into the gas pumping units of linear compressor stations is proposed.
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