FIELD: engines and pumps.
SUBSTANCE: invention is intended for heat-, gas- and electric engineering, mainly for use in bleeding natural gas from boreholes or high-pressure main lines to consumers that require lower pressure natural gas. Proposed method allows producing power by reducing natural gas pressure and using natural gas cooled in reducing its pressure for cooling used working medium, of at least one gas turbine. Natural gas cooled in reducing its pressure is used to cool working medium temperature directly behind turbine working blades of turbine final stage blades. Proposed device incorporates appliance designed to cool used working medium for producing coolant, inlet of aforesaid appliance being connected to natural pressure reduction appliance outlet. Note that coolant inlet is located directly behind working blades of final or only stage of the turbine, coolant representing turbine working medium.
EFFECT: higher efficiency.
4 cl, 1 dwg
