FIELD: machine building.
SUBSTANCE: gas-pumping assembly consists of gas-turbine installation, of system of fuel gas preparation and of centrifugal compressor. The centrifugal compressor consists of a dummy piston and a behind-the dummy piston cavity. The behind-the dummy piston cavity of the centrifugal compressor is connected with the system of fuel gas preparation of a driven gas-turbine installation by means of the pipeline.
EFFECT: reduced consumed power of electric explosion-protected gas heater, reduced expenditures for electric power at operation of gas-pumping assembly, reduced inefficiency of gas circulation in flow part of centrifugal compressor which results in reduction of pumped gas heating at inlet and increases efficiency of centrifugal compressor.
2 dwg
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