Optimization Of Combustion's Operation Conditions Of A 300MW Pulverized Coal Fired Boiler Based On Precalculation

TASCFLOW-CFX/COALFIRE software is the numerical simulation software of the large-scale pulverized-coal fired boiler's furnace which is developed jointly in China and inter-governmental project of technological cooperation of Canada. In this thesis, this software of application for the first time, concludes the accurate result of numerical calculation of some ten kinds of operation conditions based on a 300MW Tangentially Pulverized Coal Fired Boiler. How quality of coal change, thin of pulverized coal change, boiler load change, secondary air distribution and burner's operation conditions change, influences the simulation results when boiler combustion adjusting are analyzed together with the boiler operation characteristics. The ignition, combustion stabilization and complete combustion of pulverized coal, deviation of the furnace outlet temperature and the slagging in furnace are also analyzed. And finding out a optimum operating condition from above, thereby it achieves the adjustment and optimization of the combustion condition.