空气分级燃烧降低NO_X排放技术的研究  

The Air Fractional Combustion Reduces the NO_X Emissions Technology Research

作　　者：王浩[1] 邹琳江[2] 

机构地区：[1]中冶华天工程技术有限公司,安徽马鞍山243005 [2]安徽工业大学,安徽马鞍山243002

出　　处：《工业加热》2008年第4期8-11,共4页Industrial Heating

基　　金：安徽省教育厅重点资助项目(2006KJ079A);安徽省自然基金资助项目(2005jq1082)

摘　　要：利用Fluent数值模拟软件分析了空气分级对高温低氧空气燃烧污染物排放的影响。应用空气分级燃烧技术的燃烧器不仅使燃烧室内具有较高的温度水平,温度场均匀,燃烧效率高,而且NOX的生成量也较低,可以达到节约燃料和降低污染物的综合效果。计算结果分析表明:分级燃烧的二次空气配比对燃烧室内的NOX排放有较大影响。当一次空气占40%左右时,NOX排放最少。Using numerical simulation software of Fluent, the paper analysis the influence of the air fractional combustion to the pollutant discharged in high temperature and low oxygen air combustion. Because of using stage firing technology, the combustion chamber has high level and uniform temperature, the efficiency of combustion is high, and the emission of NOX is low. So it proves that stage firing technology is available to conserve fuel and lower NOX emission. The calculation shows that the location proportion of secondary air has great influence to the emission of NOX. While the proportion of secondary air is 60%, the emission of NOX is the lowest.

关 键 词：高温低氧 空气分级燃烧 NOX排放 数值模拟 

分 类 号：TF111.11[冶金工程—冶金物理化学]