| 摘要 |
FIELD: power engineering.SUBSTANCE: invention relates to the field of power engineering. In the method of operation of a thermal power plant, in which the spent steam arrives from the first steam turbine into the steam space of the condenser, is condensed on the surface of condenser tubes, inside of which the cooling fluid flows, at the same time the condensate with the help of the condensate pump of the steam turbine condenser is sent into the regeneration system, during condensation of steam they execute recovery of the waste low-potential thermal energy of the steam spent in the first turbine with the help of the cooling liquid, besides, in the steam turbine they use a system of oil supply to steam turbine bearings with an oil cooler, in the thermal power plant they use a condensation plant, having the condenser of the second steam turbine, and they perform recovery of high-potential heat of steam, additionally they execute recovery of low-potential heat of a steam system of oil supply to bearings of the turbine, at the same time recovery of discharge low-potential heat energy of steam spent in the first turbine, recovery of low-potential heat of the oil supply system of bearings of the first steam turbine, and recovery of high-potential heat of steam is carried out with the help of a heat engine with a closed circulation circuit, operating according to the organic Rankine cycle, in which they use low-boiling fluid as cooling fluid, circulating in the closed circuit. As the low-boiling fluid they use liquefied carbon dioxide CO.EFFECT: invention makes it possible to recover heat and additionally generate power.3 cl, 1 dwg |
