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[1]杨 红,王 帆,王呈祥,等.穿流型搅拌器结构参数优化[J].武汉工程大学学报,2015,37(01):39-43.[doi:10. 3969/j. issn. 1674-2869. 2015. 01. 009]
 YANG Hong,WANG Fan,WANG Cheng-xiang,et al.Optimizing structural parameters of punched impeller[J].Journal of Wuhan Institute of Technology,2015,37(01):39-43.[doi:10. 3969/j. issn. 1674-2869. 2015. 01. 009]
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穿流型搅拌器结构参数优化(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
37
期数:
2015年01期
页码:
39-43
栏目:
机电与信息工程
出版日期:
2015-01-31

文章信息/Info

Title:
Optimizing structural parameters of punched impeller
文章编号:
1674-2869(2015)01-0039-05
作者:
杨 红12王 帆1王呈祥1曾 真1刘 洋1罗丹丹1
1.武汉工程大学机电工程学院,湖北 武汉 430205;  2.化工装备强化与本质安全湖北省重点实验室(武汉工程大学),湖北 武汉 430074  
Author(s):
 YANG Hong12WANG Fan1WANG Cheng-xiang1ZENG Zhen1LIU Yang1LUO Dan-dan1
1.School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan 430074,China;  2.Hubei Key Laboratory of Chemical Equipment Intensification and Intrinsic Safety(Wuhan Institute of Technology),   Wuhan 430074, china
关键词:
:穿流式搅拌桨结构参数优化研究CFD数值模拟分布时间实验功率实验
Keywords:
punched impeller structural parameters time-distribution power
分类号:
TQ027
DOI:
10. 3969/j. issn. 1674-2869. 2015. 01. 009
文献标志码:
A
摘要:
在特定搅拌槽条件下,针对穿流式斜叶桨式搅拌器,在常用的最高转速300 r/min以内,就开孔位置、开孔率、开孔直径等结构参数进行了数值模拟. 将搅拌器以及附近区域都设为动区域进行模型简化处理,基于四面体网格对模型进行网格划分,采用多重参考系稳态处理法,选用标准k-ε湍流模型求解搅拌流场. 引入搅拌系数K, 从混合效果和功率消耗两方面综合评价搅拌器的优劣. 搅拌功率实验和分布时间实验较好地验证了数值模拟的结论. 研究表明,相较于传统搅拌桨,穿流式搅拌桨因能强化涡流扩散、减小桨叶投影面,可获得更好的混合效果和更低的功耗,且随着搅拌转速的增大,功耗降低的越明显;搅拌功率和混合时间随开孔率和开孔直径而变化,当开孔率为12%左右、开孔直径为8 mm左右时,搅拌功率和混合时间最小,最为优化.
Abstract:
Aimed at punched agitator with pitched blade, the structural parameters of hole position, hole diameter and opening rate were numerically simulated in specific stirring tank. The agitator and its surrounding area were set as moving area for simplified treatment of model. Based on tetrahedral mesh of the model grid, the standard k-ε turbulence model and moving reference frame were used to solve steady-state mixing flow field. Mixing coefficient was introduced to evaluate the combination property of stirrer from the mixing effect and power consumption. Numerical results are well verified by the experiments of mixing time and mixing power. It is found that the punched impeller can get a better mixing effect and lower power consumption compared with traditional agitator blade. The punched impeller can intensify the eddy diffusion and reduce blade projection plane. The reduction of power consumption is more obvious as the speed increases. The changes of mixing power and mixing time depending on the hole diameter and the opening rate. The mixing power and mixing time are minimum and optimal when the opening rate is about 12% and the diameter is about 8 mm.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2014-11-15  基金项目:武汉工程大学科学研究基金资助项目(14105061)  作者简介:杨红(1971-) ,男,湖北当阳人,教授,博士. 研究方向:新型高效过程装备、机械设备智能监控等.
更新日期/Last Update: 2015-03-21