METHOD OF WORK combined heat and power, heightened gas-turbine units with heat recovery boiler

摘要

A method of operating cogeneration, overbuilt gas turbine plant with a waste-heat boiler comprising a steam boiler and heat supply steam turbine with capacitors in its superstructure, at least one gas turbine with a single-circuit steam recovery boiler, generating the generation of high pressure steam, heating boiler feed water -utilizatora cogeneration and the steam boiler, afterburner fuel; in a steam boiler produce a first stream of high pressure steam, in single-loop steam recovery boiler produce a second stream of high pressure steam, heated feed water for the waste heat boiler and a steam boiler cogeneration partially displacing the regenerative high-pressure steam turbine cogeneration selections; the combined first and second streams of high pressure steam and displaced pairs of regenerative selections high pressure is expanded in the heating steam turbine using its useful work for additional power generation, characterized in that the combined heat and power modes of operation in non-heating autumn and spring and summer seasons in steam boilers burn additional fuel and increase navyrabotku high pressure steam in the waste heat boiler is heated further network water heating systems etc. A hot water supply, reducing (partially displacing) of the district heating steam heats the steam turbine, the increased flow of high pressure steam and steam cogeneration selections extruded expanded in the heating steam turbine is increased by ΔGraskhod circulating water in the condenser,