FIELD: power engineering; gas distributing stations and gas control points. SUBSTANCE: heat pump is installed on one shaft with gas turbine. Heat pump consists of air compressor and air turbine. Outlet branch pipe of heat pump air compressor is coupled with branch pipe of gas-air heat exchanger, and outlet branch pipe of air heat exchanger is coupled with inlet of nozzle assembly of heat pump air turbine. Pressure differential energy generated at expansion in gas turbine (gas-expansion machine) and heat obtained at compression at atmospheric air in heat pump air compressor are used for heating main-line gas. Heat pump operates at compression ratio E=3. EFFECT: utilization of heat of atmospheric air. 1 dwg
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