摘要
Based on the investigation of NO_x formation mechanism, a coal-fired utility boiler whose capacity is 1 004 t/h was studied. Excessive air coefficient, inclination of bumer and the way of coal supply were investigated through experimental method. Resuits indicated that under the condition of same boiler efficiency and burn-off rate, the operation conditions adopting the lower excessive air coefficient, upward bumers' inclination and pyramid coal-supply could reduce NO_x emission.
Based on the investigation of NOx formation mechanism, a coal-fired utility boiler whose capacity is 1 004 t/h was studied. Excessive air coefficient, inclination of burner and the way of coal supply were investigated through experimental method. Resuits indicated that under the condition of same boiler efficiency and burn-off rate, the operation conditions adopting the lower excessive air coefficient, upward burners＇ inclination and pyramid coal-supply could reduce NOx emission.
基金
Supported by the Youth Fundation of Shanghai University of Electric Power (F2004016)
Shanghai Leading Academic Discipline Project (P1302)
