平焰炉内燃气管位置对NO_x生成特性的影响  

Effect of Position of Burning Nozzle on Generating Characteristics of NO_x in Flat Flame Stove

作　　者：陈伟鹏[1] 武文斐[1] 赵增武[2] 李保卫 

机构地区：[1]内蒙古科技大学能源与环境学院,内蒙古包头014010 [2]内蒙古科技大学材料与冶金学院,内蒙古包头014010

出　　处：《钢铁研究学报》2010年第4期9-11,51,共4页Journal of Iron and Steel Research

基　　金：国家自然科学基金资助项目(50464004);国家重大基础研究前期研究专项(2005CCA00600);内蒙古自然科学基金资助项目(200508010701)

摘　　要：控制氮氧化物(NOx)的生成是燃气炉燃烧过程洁净优化的重点。采用燃气试验炉和综合烟气分析仪等设备,研究了燃气管插入深度对平焰燃气炉内火焰特性、温度场和烟气中NOx生成特性的影响规律。准确测量了不同燃气管插入深度下炉内中心垂直剖面温度和烟气中NOx含量,分析了不同燃气管插入深度条件下炉内火焰特性。结果表明:适当降低插入深度可以使燃烧区域扩大并降低炉膛顶部局部高温区温度,进而有效降低烟气中NOx的含量。NOx control is the key point of clean combustion technology in gas stove.The effect of Position of burning nozzle on flame features,temperature field and generating characteristic of NOx in flat flame furnace was studied using analytical instruments of flue gas in gas stove.Temperature in central vertical section and concentration of NOx in flat flame furnace were accurately measured,and the characteristics of flat flame were analyzed for different position of burning nozzle.The results show that aptly lowering the position of burning nozzle can reduce the temperture of high temperature area at the top of stove,and therefore can reduce the NOx in flue gas.

关 键 词：燃气炉 NOx 平焰燃烧 

分 类 号：TK16[动力工程及工程热物理—热能工程]