Patent ID: 8099959

Claim:
Heat recovery equipment for recovering heat from flue gas, comprising: a power generation plant configured to drive a steam turbine by superheated steam produced in a boiler, said power generation plant includes a condensed water line, said condensed water line including a condenser, a condensed water heater, and a low-pressure feedwater heater in order and a supplementary air preheater that is provided on an air introduction side of the first air preheater; and an exhaust-gas treatment line configured to treat flue gas output from said boiler, said exhaust-gas treatment line including a first air preheater, a heat extractor unit, and a dry electrostatic precipitator in order, wherein said heat extractor unit is configured to recover heat from the flue gas, wherein said condensed water heater is configured to heat water condensed by said condenser with the heat recovered by said heat extractor unit, and said supplementary air preheater is configured to heat the air by the heat recovered by said heat extractor unit.