Flexibility Renovation of Combustion System of a 330MW Pulverized Coal Firing Boiler
A 330MW pulverized coal firing boiler needs to admit flexibility renovation of the combustion system.The com-prehensive analysis was conducted on the limiting factors such as coal pulverization system,primary air fan,forced draft fan,induced draft fan,and stable combustion capacity of the coal burner,and a flexibility renovation proposal for the combustion system was determined.After the implementation of the proposal,the stable combustion load of the boiler without oil firing had been increased from 165MW to99MW.At the load of99MW,the nitrogen oxide emission value was 278mg/Nm3,carbon in fly ash was 0.9％,carbon in bottom ash was 1.82％.Good renovation results have been achieved.
combustion systemflexibility renovationstable combustion load without oil firing
万方数据
维普
