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过量空气系数和水蒸气对管式加热炉燃烧特性的影响研究 预览

Investigation of the effect of excess air factor and water vapor on combustion characteristics of tube furnace
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摘要 文章分别在过量空气系数α为1.05、1.10、1.15、1.20、1.25、1.30的6种工况下和氧化剂中添加的水蒸气体积分数φH2O为0、0.03、0.05、0.08、0.10、0.15的6种工况下,利用计算流体动力学(computational fluid dynamics,CFD)软件对燃气分级燃烧的管式加热炉进行了研究,分析了炉膛内的温度分布、NO密度分布以及NO排放情况.结果表明,α=1.10时,低氮燃烧效果较好;φH2O=0.10时,炉膛内部温度分布均匀且NO排放量较低. A numerical simulation of the combustion process in tube furnace, which was based on the fuel staged burner, was carried out by using the computational fluid dynamics(CFD) software Fluent. Some related parameters, such as temperature, NO density and NO emission, were obtained under different excess air factor α of 1.05, 1.10, 1.15, 1.20, 1.25 and 1.30, respectively. The results showed that NO emission could be reduced effectively with α=1.10. This paper also studied the temperature distribution, NO density in the furnace and NO emission when adding different volume fraction of water vapor φH2O of 0, 0.03, 0.05, 0.08, 0.10 and 0.15 into the oxidant, respectively. The results showed that the temperature field was uniform in the furnace and NO emission was relatively low with φH2O=0.10.
作者 王宝刚 马培勇 闫广豪 陶常法 邢献军 WANG Baogang;MA Peiyong;YAN Guanghao;TAO Changfa;XING Xianjun(School of Automobile and Traffic Engineering, Hefei University of Technology, Hefei 230009, China;School of Mechanical Engineering, Hefei University of Technology, Hefei 230009, China;Shanghai Haoyong Energy Saving Engineering Co., Ltd., Shanghai 201203, China)
出处 《合肥工业大学学报:自然科学版》 CAS 北大核心 2019年第3期392-397,共6页 Journal of Hefei University of Technology(Natural Science)
基金 中央高校基本科研业务费专项资金资助项目(JZ2018YYPY0295).
关键词 管式加热炉 计算流体动力学(CFD)软件 过量空气系数 水蒸气 tube furnace computational fluid dynamics(CFD) software excess air factor water vapor
作者简介 王宝刚(1991-),男,甘肃庆城人,合肥工业大学硕士生;通讯作者:马培勇(1980-),男,山东鱼台人,博士,合肥工业大学副教授,硕士生导师,E-mail:mapeiyong@163.com;邢献军(1964-),男,安徽无为人,博士,合肥工业大学教授,博士生导师.
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