METHOD OF COMBINED CYCLE PLANT OPERATION Russian patent published in 2013 - IPC F01K21/04 

FIELD: power engineering.

SUBSTANCE: method of combined cycle plant operation, in which an air compressor compresses air with intermediate cooling, which is supplied into a zone of combustion in a combustion chamber, where simultaneously fuel is sent, the produced combustion products are mixed in a mixing zone of the combustion chamber with water vapour to produce steam and gas mixture at the outlet of the combustion chamber, which as a working body is sent into a steam and gas turbine, in which the energy of the steam and gas mixture flow is transformed into mechanical energy of turbine rotor rotation, further the water vapour is partially condensed in a vacuum condenser, underpressure in which is pulled with a vacuum compressor, diverting non-condensed gaseous combustion products, condensed water is heated in heat exchangers, at the same time the plant is equipped with an additional heat exchanger of air cooling, into which a part of air is sent after the first compression cascade to heat feedwater released from the heat exchanger of effluent gases cooling.

EFFECT: invention makes it possible to increase efficiency of a combined cycle plant.

5 cl, 4 dwg