| 全氧燃烧玻璃熔窑燃烧器安装高度的优化模拟 |
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| 引用本文： | 谢峻林,金明芳,梅书霞.全氧燃烧玻璃熔窑燃烧器安装高度的优化模拟[J].武汉理工大学学报,2011(3). |
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| 作者姓名： | 谢峻林 金明芳 梅书霞 |
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| 作者单位： | 武汉理工大学硅酸盐材料工程教育部重点实验室; |
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| 基金项目： | 国家科技支撑计划(2006BAF02A26) |
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| 摘 要： | 以全氧燃烧熔窑为研究对象,借助于FLUENT软件对玻璃熔窑火焰空间进行数值模拟。对全氧燃烧条件下,燃烧器安装在3种不同高度时的熔窑火焰空间的温度场、气流场和碱蒸汽对窑炉碹顶的侵蚀情况进行分析对比,为燃烧器在全氧玻璃熔窑中的操作参数的确定提供依据,对窑炉的设计和优化进行有效的指导。研究表明,燃烧器安装高度对熔窑火焰空间温度分布有较大影响,不合适的安装位置会导致对玻璃液面的传热效率下降、碱蒸汽的挥发增强。燃烧器安装在0.3 m高度时,气流有冲刷玻璃液面的倾向,且气流平均速度较大;燃烧器安装在0.5 m高度时,火焰气流翘起,火焰空间底面附近的水蒸气的平均摩尔分数明显偏高,这些均易造成玻璃液面碱蒸气的挥发。燃烧器安装在0.4 m高度时,碱蒸汽的挥发率最小,但碹顶出现局部高温区,火焰传热效率不高。因此燃烧器的合理安装高度应该在0.3~0.4 m之间。
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| 关 键 词： | 玻璃熔窑 数值模拟 全氧燃烧 火焰空间 燃烧器 |
Numerical Simulation of the Effect Rule of the Burners' Installation Height on Combustion Space in Oxy-fuel Glass Furnace |
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| XIE Jun-lin,JIN Ming-fang,MEI Shu-xia.Numerical Simulation of the Effect Rule of the Burners' Installation Height on Combustion Space in Oxy-fuel Glass Furnace[J].Journal of Wuhan University of Technology,2011(3). |
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| Authors: | XIE Jun-lin JIN Ming-fang MEI Shu-xia |
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| Affiliation: | XIE Jun-lin,JIN Ming-fang,MEI Shu-xia(Key Laboratory of Silicate Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China) |
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| Abstract: | In this paper,numerical simulation with software FLUENT was carried out in combustion space of an oxy-fuel glass furnace.On the oxy-fuel combustion conditions,when the burners installed in three different heights of the furnace,compare and analyze their temperature fields,flow fields and the erosion of the crown by alkali volatilization in combustion space,which can provide basis for operating parameters of the burners and instruct the design and optimization effectively in oxy-fuel glass furnace.Our resear... |
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| Keywords: | glass furnace numerical simulation oxy-fuel fired combustion space burner |
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