Adopting simulated wet flue gas desulphurization(FGD) system in power plants

the affecting factors upon water consumption in FGD system have been studied.An evaluation method of water consumption in wet FGD system has been put forward on the basis of increasing ratio(I) for the circulating slurry:I0 means large water consumption in FGD system

needing water to be supplied;I0 means the water in FGD system has to be discharged

so as to maintain the normal water level in slurry pond;I=0 means that the FGD system has no water consumption

study shows that the larger water vapor concentration in flue gas and lower inlet flue gas temperature of FGD system

the smaller water consumption in FGD system.Installing GGH or low-temperature residual heat utilization system

the water consuption can be reduced by 30%~40%

decreasing the temperature of circulating slurry

the water consumption can be reduced along.