| 四叶片倾斜涡轮结晶器内流场和浓度场模拟 |
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| 引用本文： | 王鑫,陈慧,梁宝臣,楼鹏,张燕来.四叶片倾斜涡轮结晶器内流场和浓度场模拟[J].化学反应工程与工艺,2009,25(6). |
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| 作者姓名： | 王鑫 陈慧 梁宝臣 楼鹏 张燕来 |
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| 作者单位： | 1. 天津理工大学化学化工学院,天津,300384
2. 天津大学化工学院,天津,300072 |
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| 摘 要： | 利用计算流体动力学(CFD)方法计算了四叶片倾斜涡轮结晶器内流体混合过程的流动场和浓度场,考察了搅拌桨在不同位置对搅拌混合流场及混合时间的影响,并结合电导率实验对模拟结果进行了验证.结果表明:当搅拌桨离底高度为液体高度的1/3时,结晶器内流场分布比较均匀,混合时间较短,适合工业上底部进料的结晶器.
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| 关 键 词： | 结晶器 搅拌桨 计算流体力学 混合时间 |
Simulation of Flow and Concentration Fields in the Crystallizer with a Four-Pitched-Blade Turbine |
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| Wang Xin,Chen Hui,Liang Baochen,Lou Peng,Zhang Yanlai.Simulation of Flow and Concentration Fields in the Crystallizer with a Four-Pitched-Blade Turbine[J].Chemical Reaction Engineering and Technology,2009,25(6). |
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| Authors: | Wang Xin Chen Hui Liang Baochen Lou Peng Zhang Yanlai |
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| Affiliation: | Wang Xin1 Chen Hui1 Liang Baochen1 Lou Peng1 Zhang Yanlai2(1.School of Chemistry and Chemical Engineering,Tianjin University of Technology,Tianjin 300384,China,2.School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China) |
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| Abstract: | The flow and concentration fields of mixing process in the crystallizer with a four-pitched-blade turbine were simulated by computational fluid dynamics (CFD), the effects of the impeller location on flow field and mixing time in the crystallizer were investigated, and the simulated results were verified through the conductivity experiments. The results showed that the distribution of the flow field in the crystallizer was uniform and the mixing time was short when the distance from the impeller to the bottom of the crystallizer was 1/3 height of the liquid in the crystallizer, which was quite suitable to the industrial bottom-feed crystallizer. |
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| Keywords: | crystallizer impeller computational fluid dynamics mixing time |
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