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[1]罗燕,周剑秋,郭钊,等.液体连续相撞击流反应器中结构与操作参数对混合性能的影响[J].南京工业大学学报(自然科学版),2016,38(03):13-18.[doi:10.3969/j.issn.1671-7627.2016.03.003]
 LUO Yan,ZHOU Jianqiu,GUO Zhao,et al.Effects of structure and operation parameters on mixing performance in liquid-continuous impinging streams reactor[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2016,38(03):13-18.[doi:10.3969/j.issn.1671-7627.2016.03.003]
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液体连续相撞击流反应器中结构与操作参数对混合性能的影响()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
38
期数:
2016年03期
页码:
13-18
栏目:
出版日期:
2016-05-28

文章信息/Info

Title:
Effects of structure and operation parameters on mixing performance in liquid-continuous impinging streams reactor
文章编号:
1671-7627(2016)03-0013-06
作者:
罗燕12周剑秋12郭钊2余蓓2万攀2杨侠2
1.南京工业大学 机械与动力工程学院,江苏 南京 211800; 2.武汉工程大学 机电工程学院,湖北 武汉 430073
Author(s):
LUO Yan12ZHOU Jianqiu12GUO Zhao2YU Bei2WAN Pan2YANG Xia2
1.College of Mechanical and Power Engineering,Nanjing Tech University,Nanjing 211800,China; 2.School of Mechanical and Electrical Engineering,Wuhan Institute of Technology,Wuhan 430073,China
关键词:
撞击流反应器 结构与操作参数 混合性能 数值模拟
Keywords:
Impinging reactors Structure and operation parameter Mixing Performance Numerical simulation
分类号:
TQ05
DOI:
10.3969/j.issn.1671-7627.2016.03.003
文献标志码:
A
摘要:
液体连续相撞击流反应器(LISR)中结构与操作参数对混合性能有重要影响,利用计算流体动力学(CFD)技术数值模拟LISR混合过程,重点从压力波动、剪切力场及混合时间等角度系统讨论结构与操作参数对混合性能的影响。研究结果显示,当桨叶倾角为30°时,压力波动强度与剪切应力平均值最大,分别为137.83 Pa和12.65 Pa。桨叶倾角的改变不影响混合时间,但会局部影响流体分散效果; 当桨叶转速为1 500 r/min时,其压力波动强度与剪切应力平均值最大,分别为10.68 Pa和9.69 Pa。桨叶转速的增大会减小混合时间,促进混合; 撞击距离对压力波动、剪切力场及混合时间的影响都较小,对混合性能几乎无影响。
Abstract:
The parameters of structure and operation in liquid-continuous impinging stream reactor had a very important effect on mixing performance. The mixing processes of liquid-continuous impinging streams reactor were simulated numerically by CFD software. From the perspective of macroscopic properties of pressure fluctuations,shear force field and mixing time,and the effects of structure and operation parameters, the mixing performance were discussed and analyzed.The results showed that,when the blade angle was 30 degree,the maximum pressure fluctuations and average shear force were 137.83 Pa and 12.65 Pa respectively. Meanwhile the changing angle of the blades did not change macroscopic mixing time and only resulted in the discrepancies component of the maximum difference for each section.When the blade speed was 1 500 r/min,the maximum pressure fluctuations and average shear force were 10.68 Pa and 9.69 Pa respectively. The increases of paddle speed could reduce macroscopic mixing time and promote mixing.The impact distance had relatively small effect on the macroscopic properties such as pressure fluctuations,shear force field and mixing time and little impact on mixing performance.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2015-07-16
基金项目:国家自然科学基金(51276131); 湖北省自然科学基金(2013CFA025)
作者简介:罗燕(1977—),女,湖北黄梅人,博士生,主要研究方向为高效传质技术与设备; 周剑秋(联系人),教授,E-mail:yyzjqcc@sohu.com.
引用本文:罗燕,周剑秋,郭钊,等.液体连续相撞击流反应器中结构与操作参数对混合性能的影响[J].南京工业大学学报(自然科学版),2016,38(3):13-18..
更新日期/Last Update: 2016-05-20