METHOD OF AND GAS-STEAM TURBINE PLANT FOR CONVERTING HEAT ENERGY INTO MECHANICAL ENERGY Russian patent published in 2004 - IPC

FIELD: power engineering. SUBSTANCE: proposed method of conversion of heat energy into mechanical energy includes processes of compression of air with subsequent division into primary and secondary flow with delivery of primary air and fuel into primary zone of combustion chamber for combustion with formation of combustion products which are mixed with steam-air mixture to form steam-gas mixture with conversion of its potential energy into mechanical energy. Heat of waste gas-steam mixture (waste-gases) is utilized in waste heat recovery boiler with production of superheated steam delivered into secondary zone of combustion chamber and saturated water. Waste gases are additionally cooled with condensing of steam, and condensate is delivered into waste heat recovery boiler, and saturated water is delivered into heat-mass exchanger and, after partial evaporation and cooling, is let out of heat-mass exchanger and is mixed with condensate. Fuel gas is used as fuel which is delivered through system regulating fuel gas delivery to heat-mass exchanger whose output is connected to primary zone of combustion chamber. EFFECT: provision of high degree of utilization of heat of waste gases, increased economy and power output of plant, reduced heat and toxic action onto environment. 3 cl, 1 dwg