METHOD OF RECOVERY OF HEAT OF EXHAUST GASES OF GAS-TURBINE ENGINE AND HEAT POWER-GENERATING PLANT FOR IMPLEMENTING THE METHOD Russian patent published in 2005 - IPC

FIELD: heat power engineering.

SUBSTANCE: proposed heat power-generating plant build around gas-turbine engine designed for driving main generator or turbocompressor and getting hot exhaust gases contains heat producing system, power generating system and automatic control and regulation system. Heat producing system employs heat of exhaust gases and includes recovery circuit with recovery boiler, pumping unit for circulating water under heating and piping manifold with valves and fittings. Heat producing system of plant is furnished with shell-and-tube heat exchanger providing transmission of produced heat from recovery circuit of heat producing system of plant into power-and-heat supply circuit of heat consumer. Piping manifold is furnished with driven valves providing delivery of hot water from recovery boiler both power-and-heat supply circuit and into circuit of power generating system. Power generating system consists of closed circuit equipped with heat exchange, pumping and reservoir equipment and equipment for condensing vapors of working medium, shutoff and regulating devices and recovery power-generating plant with steam-turbine drive. Closed circuit of power-generating system of plant contains multistage evaporation system of low-boiling hydrocarbon mixture using hot water, device for preliminary heating of condensate, system for condensing working medium vapors and device to remove non-condensed components of gaseous hydrocarbon mixture from low-boiling hydrocarbon mixture circuit. Preliminary heating of condensate is provided by hot vapors of hydrocarbon mixture getting out of steam turbine drive before their delivery into condensing system. System for automatic control and regulation of heat producing and power generating systems contains devices providing operation of recovery circuit of heat producing system in two modes, namely, heat producing and power generating ones.

EFFECT: improved efficiency of heat and power generating plant for recovering of heat of exhaust gases of gas-turbine engine.

6 cl, 1 dwg