| 摘要 |
FIELD: heat power engineering; thermal power stations. ^ SUBSTANCE: proposed thermal power station contains gas turbine plant, steam boiler to which gas duct of oxidizer - gas turbine exhaust gases is connected and the following devices arranged in down take gas duct of boiler successively in direction of gas flow: convection steam super heater, water economizer, high-pressure gas-water heater and low-pressure gas-water heater, and extraction steam turbine plant with heating and regenerative steam extractions, condenser, upper and lower system heaters connected by heating medium line heating steam extractions of steam turbine plant, higher pressure deaerator connected by deaerated feed water pipeline through feed pump with high-pressure gas-water heater of steam boiler. Low-pressure gas-water heater is placed in circulation circuit of deaerated water before water-to-water heat exchanger connected by heating medium line to desalted water pipeline after chemical water cleaning. Connected successively to pipeline of main condensate of steam turbine plant are four regenerative low-pressure heaters connected, respectively, to seventh, sixth, fifth and fourth extractions in direction of steam flow in steam turbine passage. ^ EFFECT: increased economy of thermal power station owing to creating conditions for additional generation of electric energy at heat consumption of steam turbine and more complete use of excess heat of exhaust gases of gas turbine plant. |
