Application Variable Nozzles Angle Technique to Prevent IDF from Dust Deposit and Vibration

The centrifugal fan which convey the gas stream containing some dust is very important in industrial production,the fan often fouling during the operation,which lead to fan vibration and frequent downtime for cleaning.According to the problem of thermal power plant boiler fan fouling vibration,the jet nozzle sweep device was studied in this paper.The effects of changing the nozzle angle were simulated.The results were analyzed,the effects of fan loads to the best angle and the effects of nozzle flow to the best angle were obtained.At the same time the best nozzle angle was obtained,dust deposit and vibration of fan was prevented,which have important significance to the safe and stable operation of power plant.