燃料管插入深度及空气系数对平焰燃烧器燃烧特性的影响  

Effects of fuel pipe insertion depth and air coefficient on combustion characteristics of flat flame burner

作　　者：古旭龙 韩爱民 张天睿 陈伟鹏[1,2] Gu Xulong;Han Aimin;Zhang Tianrui;Chen Weipeng(Inner Mongolia University of Science and Technology;Inner Mongolia Key Laboratory of Clean Combustion)

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]内蒙古洁净燃烧重点实验室

出　　处：《冶金能源》2021年第1期47-50,64,共5页Energy For Metallurgical Industry

基　　金：国家自然基金资助项目(51776221);内蒙古自然科学基金项目(2018MS05035);内蒙古自治区教育厅项目(NJZZ17161);地市级其他项目(0903051901)。

摘　　要：通过搭建自行设计的实验平台,进行空气助燃的平焰燃烧实验,观察火焰形状,研究燃料管插入深度和空气系数对温度分布和NOx浓度的影响。结果表明:随着燃料管插入深度的减小,峰值温度下降,温度分布更加均匀。当插入深度为0mm时,形成的火焰盘形状更加清晰,实现了平焰燃烧。在生产实践中,要综合考虑燃烧温度与NOx生成量的影响,在1.0~1.3之间选择一个最佳的空气系数,使得燃烧温度高且NOx生成量少。Through constructing experimental platform design by ourselves,conducting a flat flame combustion experiment with air-assisted,observe the flame shape.The effects of fuel tube insertion depth and air coefficient on the temperature distribution and NOx concentration were studied.The results indicate that:As the depth of fuel tube insertion decreases,the peak temperature decreases,and the temperature distribution is more uniform.When insertion depth of 0mm,formation of the flame shape more clearly,to achieve the flat flame combustion.In production practice,the effect of combustion temperature and NOx production should be considered comprehensively.Choose an optimal air coefficient between 1.0 and 1.3 to achieve high combustion temperature and low NOx production.

关 键 词：平焰燃烧 空气助燃 燃料管插入深度 空气系数 

分 类 号：G63[文化科学—教育学]