STEAM-GAS POWER PLANT Russian patent published in 1995 - IPC

FIELD: heat power engineering. SUBSTANCE: steam-gas power plant has gas-turbine and steam-turbine units. The steam-turbine unit is connected to the steam power loop provided with steam boiler 4 wherein economizer and steam-overheating surfaces are received. The boiler is positioned at the outlet of the gas-turbine unit 1. The plant has system heater 27 connected to the steam take off through pipe line 28 and economizer heating surface 3 positioned in the gas path of gas-turbine unit 1 and connected in parallel to surface 11 through water. The heating water outlet of system heater 27 is connected to the inlet of economizer surface 3 through a pipe line having valving and controlling members and pump. The outlet of surface 3 is additionally connected to the inlet of heater 27. EFFECT: enhanced efficiency. 1 dwg