STEAM-GAS PLANT WITH COMPRESSOR STEAM TURBINE DRIVE AND HIGH-PRESSURE STEAM GENERATOR WITH INTERMEDIATE STEAM SUPERHEATER Russian patent published in 2022 - IPC F01K21/04 

FIELD: turbines or turbomachines.

SUBSTANCE: steam-gas plant with a compressor steam turbine drive and a high-pressure steam generator consists of a compressor, a high-pressure steam generator with an external and internal housings, a gas turbine, waste heat recovery unit, back pressure and condensation steam turbines, electric generator, high pressure deaerator. Inner housing comprises: fuel incomplete combustion chamber, second stage of feed water heater, evaporator, intermediate steam superheater. Fuel afterburner is installed in outer housing. Compressor outlet is connected to the inlet of the inner housing and is also connected to the afterburning chamber through an annular gap between the outer and inner housings. Steam superheater, first stage of feed water heater and gas-water heater of condensate are installed in waste heat recovery unit. Steam superheater is connected to the inlet of the counter-pressure turbine, its outlet is connected to the condensation steam turbine through the bypass steam line, the intermediate steam superheater and the steam line of the superheated steam of medium pressure. Steam line of superheated steam of medium pressure is connected with deaerator of high pressure by steam line of extracted steam.

EFFECT: invention is aimed at improvement of thermal efficiency and electric power of combined-cycle plant, as well as reduction of its metal consumption.

1 cl, 1 dwg