旋流煤粉燃烧器低NO_x排放的设计分析  

ANALYSIS OF DESIGN FOR SWIRLING PULVERIZED COAL BURNERS WITH LOW NO_x EMISSION

作　　者：张海[1] 吕俊复[1] 崔凯[1] 刘青[1] 徐秀清[1] 

机构地区：[1]清华大学热能工程系,北京100084

出　　处：《热力发电》2010年第11期32-36,共5页Thermal Power Generation

基　　金：国家863资助项目(2007AA05Z303)

摘　　要：分析了我国电站锅炉低NOx旋流燃烧器的使用状况和NOx排放现状,总结了旋流燃烧器实现低NOx燃烧的技术要素。分析表明,二次风的配给、一次风的浓缩、一次风喷口结构和一次风预热等是降低NOx排放的重要措施。同时,讨论了低NOx旋流燃烧器的研究发展方向,可为旋流燃烧器的选型和设计提供参考。The application situation of swirling burners with low NOx emission on utility boilers and status quo of NOx emission in China have been investigated and analysed,the essential factors for realizing low NOx combustion using swirling burner being summarized up.Analysis shows that the distribution of secondary air,the enrichment of primary air,the structure of primary air jet,and the preheating of primary air etc.are important measures for reducing NOx emission.At the same time,the direction for research and development of swirling burners with low NOx emission has been discussed,providing certain reference for type-selection and disign of swirling burners.

关 键 词：锅炉 旋流燃烧器 低NOX排放 一次风 二次风 喷口结构 

分 类 号：TK222[动力工程及工程热物理—动力机械及工程]