Towards the Thermal Power Plant's Design of Precise Ammonia Injection Control Scheme After the Structure of Denitrification Tower was Optimized
Through the change of the key parameters of the denitrification system,the SCR urea pyrolysis spray gun and the SCR Operation adjustment are considered as a whole,in order to realize the joint adjustment of the supply and demand system of ammonia injection,the automatic adjustment of five spray guns of the original urea solution was brought into the automatic control scheme,combined with the accurate and rapid measurement of SCR outlet NOx and the rapid measurement of ammonia escape,the automatic adjustment of ammonia injection under different operation conditions of the boiler is realized,and the optimization of denitrification efficiency is achieved,the aim is to save the amount of ammonia injection,reduce the blockage of air preheater,reduce the power consumption of primary fan and induced draft fan,and ensure the long-term stable operation of denitrification system.
denitrification towerprecise spray of ammoniacontrol planpartition control
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