国内首台600MW对冲燃烧锅炉低NO_x燃烧技术改造  

Technical retrofit of low NO_x combustion for first 600 MW opposed firing boiler in China

作　　者：屠小宝[1] 胡伟锋[1] 徐良[1] 徐仲雄[1] 戴成峰[1] 应明良[2] 

机构地区：[1]国电浙江北仑第一发电有限公司,浙江宁波315800 [2]浙江省电力试验研究院,浙江杭州310014

出　　处：《中国电力》2011年第6期31-33,共3页Electric Power

摘　　要：为将锅炉低NOx燃烧技术改造可能产生的负面影响减至最低程度,在燃烧器改造设计中,注重对主燃烧器分级燃烧的设计优化,采用较大的主燃烧区化学当量比,降低对主燃烧区低化学当量比的依赖度和敏感度,同时采取受热面调整和磨煤机增装动态分离器等配套措施。改造后锅炉总体性能良好,NOx减排幅度达到50%。In order to minimize the possible negative effect after boiler low NO, combustion technical retrofit, the design optimization for staged combustion of main burner was emphasized, the larger chemical equivalent proportion of main burning area was adopted, the sensitivity and the dependence of chemical equivalent proportion of main burning area were reduced, and the heating surface was adjusted and rotating classifier for mill was installed in burner retrofit design. After the retrofit, the overall performance of the boiler achieves the expected goals and the NO, reduction rate reaches to 50%.

关 键 词：600MW机组 对冲燃烧锅炉 低NOX燃烧 技术改造 

分 类 号：TK227[动力工程及工程热物理—动力机械及工程]