优化玻璃熔窑底烧式喷枪仰角的数值模拟研究  

Numerical Simulation on Optimization of Burners' Elevation Angle in Bottom-fired Glass Furnace

作　　者：金明芳[1] 何峰[1] 谢峻林[1] 江龙跃 梅书霞[1] 

机构地区：[1]武汉理工大学材料科学与工程学院,武汉430070 [2]中国凯盛国际工程有限公司,上海200063

出　　处：《武汉理工大学学报》2013年第8期24-28,共5页Journal of Wuhan University of Technology

基　　金："十二五"国家科技支撑计划(2012BAA08B04)

摘　　要：采用数值模拟的方法对某浮法玻璃熔窑底烧式喷枪的安装仰角进行模拟优化,具体从熔窑火焰空间温度分布、燃烧效率、玻璃液面热流量和碹顶温度分布等角度来对喷枪仰角为0°、3°、5°、7°、9°、11°、13°这7种情况进行对比分析。研究结果表明:喷枪安装仰角的增大有利于燃料和助燃气体的充分混合和燃烧,但当仰角大于5°时,角度的增大对燃烧效率和平均温度影响不大;仰角的增大对碹顶温度分布影响不大,喷枪仰角为3°和5°,传递给玻璃液面的热量较多。因此,此熔窑的天然气喷枪仰角的可调节范围较大,仰角为5°时的燃烧状况较好。Numerical simulation was performed for the optimization of the installation elevation angle in a bottom-fired glass furnace. It is compared and analyzed for the temperature distribution in the combustion space of a glass furnace, combustion efficiency, heat flux transferred to the glass surface and temperature distribution of crown when the burners＇ elevation angle is 0°, 3°, 5°, 7°, 9°, 11°, 13°, respectively. The research results show that increasing the burners＇ eleva- tion angle is benefit to mixing and combustion of fuel and air. But when burners＇ elevation angle is more than five de- grees, the combustion efficiency and the distribution of average temperature do not obviously changed over the elevation angle of burners; Increasing the burners＇ elevation angle has little effects on the temperature distribution of crown and when elevation angle of burners is three degrees and five degrees, the heat flux transferred to the glass surface is more. Therefore, the adjustable range of elevation angle of burners fired natural gas is wider and when elevation angle of burners is five degrees, the combustion state is better in the furnace.

关 键 词：数值模拟 玻璃熔窑 火焰空间 底烧式 

分 类 号：TQ172[化学工程—水泥工业]