INTEGRATED GASIFICATION COMBINED CYCLE POWER PLANT

摘要

PURPOSE: A carbonic gas complex generating plant is provided to reduce the contaminant because the consumption of the fuel is reduced and the optimum combustion condition is formed by controlling the amount of the dilute nitrogen and the secondary fuel and controlling combustion oscillation by monitoring NOx generation rate. CONSTITUTION: A carbonic gas complex generating plant is composed of a gas generating unit, a steam generating unit, and a fuel control unit. The carbonic gas generated in a gasifier(110) is supplied to a gas turbine burner(140) by passing by a heat exchanger(120) and a gas refiner(130). The gas generating unit is operated by the operation of a gas turbine(150). The steam generated in the gasifier is supplied to the gas turbine through a heat recovery boiler(170). A fuel control unit(200) analyzes combustion oscillation measurement data sensed in a kinetic pressure sensor(202) and controls the flow rate, composition, and temperature of the carbonic gas. The kinetic pressure sensor is mounted on the gas turbine burner. When computing the total fuel injection rate injected to the gas turbine burner, the fuel control unit identically keeps the total input amount before and after putting the second fuel. The fuel control unit controls the flow rate, composition and temperature of the mixed gas. The fuel control unit controls the amount of the dilute nitrogen inserted in the gas turbine.