GAS-STEAM TURBINE PLANT

A gas-steam turbine plant has gas-steam turbine engine with controller of its power, it consists of installed in sequence compressor, combustion chamber, turbine connected by shaft to converter of mechanical energy to electric energy, heat exchangers of heat supply and hot water supply and condensate cooler. A gas-turbine engine by worked-out gases is connected to installed in sequence boiler-utilizer with economizer, evaporator and steam overheater, this by its output by steam is connected to the combustion chamber, and condenser with its output through decarbonator and system for water purification connected to pure water tank, its output through distributor, condensate pump and condensatecooler is connected to sprinkler of the condenser and at the same time through distributor and regeneration heater to deaerator, deaerator and circulation pump connected to input of coiler-utilizer, and deaerator is additionally connected to steam cavity of drum-separator. Drum-separator or boiler-utilizer by saturated water is additionally connected through controlled valve to input of first of group of expanders with which gas-steam turbine plant is provided, and in parallel - to heat exchanger of heat supply. Input by saturated water of first expander is connected to input of second expander and so on, and output of the last expander is connected to input of heat exchanger of water supply and at same time by saturated steam formed at expansion of saturated water each of expanders is connected to flow-through section of the compressor, by stages respectively, where air pressure is a little lower than that of steam supplied there, and output of the condenser by water is additionally connected simultaneously to inputs of heat exchange of those are connected to input of condensate pump.