霍戈文内燃式热风炉传输现象  

Transport phenomenon of Hoogovens internal hot blast stoves

作　　者：胡祖瑞[1] 程树森[1] 张福明[2] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]北京首钢国际工程技术有限公司,北京100043

出　　处：《北京科技大学学报》2010年第8期1053-1059,共7页Journal of University of Science and Technology Beijing

基　　金：国家自然科学基金资助项目(No.60872147);"十一五"国家科技支撑计划资助项目(No.2006BAE03A01)

摘　　要：利用CFD仿真对首钢1780m3霍戈文内燃式热风炉进行了数值模拟分析,主要研究了空气和煤气混合前在矩形燃烧器中的流动,混合气体在燃烧室的燃烧、含量分布、温度分布、火焰形状以及拱顶的速度分布和温度分布.结果表明:空气喷嘴出口界面和煤气出口截面的流场都存在一定程度的不均匀性;沿燃烧室宽度方向,火焰高度变化剧烈;拱顶出口截面残余极少量的一氧化碳,蓄热室表面烟气速度分布不均,最高温差也很大.Simulation research was carried out on a 1 780 m3 Hoogovens internal hot blast stove in Shougang using the CFD method. The research contents mainly include the flow status of air and gas in the rectangular burners before mixing, combustion status of mixture gas, concentration and temperature distributions in the combustion chamber, flame shape, and velocity and temperature distri- butions in the doom. The result shows that there is heterogeneity in some degree about flow filed in the air nozzle outlet and gas outlet. Along the width direction of the combustion chamber, the flame height changes greatly. A little carbon monoxide remains in the outlet of the doom. On the surface of the checker chamber, the velocity distribution of smoke is not uniform, and the maximum temperature difference is also very large.

关 键 词：热风炉 流动 传热 燃烧 数值模拟 

分 类 号：TF578.3[冶金工程—钢铁冶金]