FIELD: heating.
SUBSTANCE: invention is designed to utilise heat from blow-off water and can be used in heat power engineering. Generated in boiler, steam is supplied to steam turbine, and additives accumulated in boiler water are drained from boiler together with blow-off water. Blow-off water is used as heating medium in water-to-water heat exchanger. Feed water being supplied to boiler will be heated in regenerating heaters by steam resulted from turbine bleeding. Blow-off water is drained from boiler and used as heating medium in the first stage of heat exchanger, while in the second stage of heat exchanger, cooled blow-off water from the first stage is used as heating medium. Condensate from the last two in feed water line high pressure regenerating heaters is used as heated medium in the first and second stages of heat exchanger.
EFFECT: improvement of heat power plants operation economy and ecology.
1 dwg
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