| 摘要 |
FIELD: heat power engineering; thermal power stations. ^ SUBSTANCE: proposed thermal power plant contains gas turbine plant, steam boiler to which gas duct of oxidizer gas turbine exhaust gases is connected and the following devices arranged in downtake 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, extraction steam turbine plant with heating and regenerative steam extractions, condenser, upper and lower system heaters connected by heating medium line to 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 ion placed in deaerated water circulation circuit before water-to-water heat exchanger connected by heated medium line to additional feed water pipeline after vacuum deaerator. Connected to pipelined of main condensate of steam turbine plant are four series-connected 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. |
