METHOD OF WORK heightened heat and power gas turbine unit with heat recovery boiler AND DEVICE FOR ITS IMPLEMENTATION

摘要

1. A method of operating overbuilt cogeneration gas turbine with a waste-heat boiler, a steam boiler cogeneration combusted fuel and produce a first stream of high pressure steam, in steam recovery boiler by the heat of the flue gases of the gas turbine produce a second stream of high pressure steam, heated two streams feedwater and condensate portion of the main cogeneration; total flow of high pressure vapor fed to expand and do work in the heating steam turbine cogeneration, preheated feed water is separated into two streams, a first flow of feed water supplied to steam boiler heat and power plant, and its second stream is used to generate the second stream of high pressure steam in kotle- waste heat; reduce (partially displace) the amount of regenerative heats the high pressure steam from the heating of the steam turbine, in accordance with the flow and heated in a waste heat boiler of the first feed water stream expelled vapor is expanded in the heating steam turbine with the additional work-and generate electricity, characterized in that operate a gas turbine unit with two stages of expansion and additional heat supply fuel before the second expansion stage, heat is further warmed etc. ucts of combustion is used to vaporize part of the feed water recovery boiler and raising the temperature before the gas turbine of the second expansion stage, the first flow of feed water, warm up in the waste heat boiler is vaporized and superheated in heat and power plant steam boiler. ! 2