李珊红,李彩亭,曾光明,李思民,王飞,王大勇

• 1:湖南大学环境科学与工程学院

摘要(Abstract)：

针对中小型燃煤锅炉的粉尘和二氧化硫等有害气体的污染问题,自行研制一种新型伞形罩烟气除尘脱硫器。利用计算流体力学通用软件,选择雷诺应力模型(RSM)和离散相模型(DPM)模拟其中的气固相流动;并在入口气速为10.6 m/s,粉尘质量浓度为2—22 g/m3时,对其性能进行预测;再通过实验验证模拟值,结果表明:数值模拟可视化装置内的速度、压力、DPM浓度分布;模拟预测的压降值为230—250 Pa,除尘效率为84%—86%;压降与除尘效率的模拟值和实验值吻合较好,相对误差分别为4%和10%。因此,用数值模拟来预测评价新型伞形罩洗涤器的性能方便且可行。

关键词(KeyWords)： 伞形罩;除尘脱硫器;数值模拟;RSM;DPM

Abstract:

Keywords:

基金项目(Foundation): 新世纪优秀人才支持计划资助项目(NCET-04-0769);; 教育部科学技术研究重点项目(105126);; 湖南省自然科学基金重点资助项目(03JJY2002)

作者(Author): 李珊红,李彩亭,曾光明,李思民,王飞,王大勇

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