METHOD OF OPERATION OF STEAM TURBINE THERMOELECTRIC PLANT WITH GAS-TURBINE SET Russian patent published in 2006 - IPC F01K21/04 

FIELD: power engineering.

SUBSTANCE: invention relates to methods of modernization of existing steam turbine thermoelectric plants. Proposed method of operation of steam-turbine thermoelectric plant with-turbine set with stepped expansion of combustion products and intermediate supply of heat of fuel comes to the following: heat of combustion products expanded in gas-turbine unit is recovered, high-pressure steam is generated and expanded in steam turbines of thermoelectric plants. To generate high pressure steam, feed water is used deaerated in thermoelectric plant. Said feed water is deaerated additionally by vacuum method. Steam condensate of steam turbines of thermoelectric plant is divided into two flows, one of which is directed for vacuum deaeration and the other is heated in low-pressure heaters of steam turbines, is deaerated at elevated pressure and is used as heating agent for vacuum deaeration of feed water.

EFFECT: increased power output and economy of thermoelectric plant at moderate capital outlays.

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