POWER AND HEATING PLANT WITH OPEN POWER AND HEAT SUPPLY SYSTEM Russian patent published in 2005 - IPC

FIELD: power and heat generation.

SUBSTANCE: proposed power and heating plant with open power and heat supply system including boiler unit, steam turbine, deaerator and feed pump includes steam-gas turbine plant unit with low-pressure afterburning chamber, steam gas mixture heat recovery unit containing recovery boiler with high-and-pressure steam generators, spraying device, gas cooler-condenser and separated water utilization unit. Separated water utilization unit is connected with input of low-pressure steam generator of recovery boiler through water softening set and deaerator. Spraying device is connected with raw water softening device of power and heating plant. Input of high-pressure steam generator of recovery boiler is connected with output of steam-gas-turbine plant. Low-pressure steam generator of recovery boiler is connected with additional afterburning chamber of steam-gas turbine plant. Separated water utilization unit is connected by pipeline of softened and deaerated low-pressure feed water with steam-gas mixture heat recovery unit and pipeline of softened, heated and deaerated make-up water with open power and heat supply system. High-pressure steam generator is connected by feed water and steam pipelines with power and heating plant.

EFFECT: provision of effective modernization of steam turbine power and heating plants with increase of power and economy.

2 dwg