Transformation Practice of 20％Deep Peak Regulation after Full Working Condition Denitration Transformation in 300 MW Unit of Coal Fired Power Plant
In the new structure of China's power system,coal-fired units must fully participate in the deep peak regulation in order to improve the viability.A 300MW subcritical unit has carried out the full working condition denitration transformation and 20％load deep regulation transformation,The development of wide temperature catalyst solved the problem that the entrance temperature of the denitration reactor does not meet the demand of ammonia injection.By increasing the burner plasma modification,coal mill wear modification,tail level flue soot blowing,DCS control system optimization,the turbine blade spraying upgrade,the combustion characteristics were promoted effectively in 20％load of the coal-fired unit.Finally,the denitration system could operate in 20％～100％load and deep peak regulation achieved.The NO,concentration could meet the ultra-low emissions demand.The power generation competitiveness and economic benefits were also improved.
full working condition denitration transformationdeep peak regulationwide temperature catalystsultra-low emissions
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