[1]许伟峰,靳遵龙,王永庆,等.变角度连续螺旋折流板换热器优化结构的数值研究[J].郑州大学学报(工学版),2015,36(05):39.[doi:10.3969/ j. issn.1671 -6833.2015.05.009]
　LIU Min-shan,XU Wei-feng,WANG Yong-qing,et al.Numerical Study of Structure Optimization for Heat Exchanger with Variable Angle Helical Baffles[J].Journal of Zhengzhou University (Engineering Science),2015,36(05):39.[doi:10.3969/ j. issn.1671 -6833.2015.05.009]
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变角度连续螺旋折流板换热器优化结构的数值研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
36
期数:
2015年05期
页码:
39
栏目:
出版日期:
2015-11-29

文章信息/Info

Title:
Numerical Study of Structure Optimization for Heat Exchanger with Variable Angle Helical Baffles
作者:
许伟峰; 靳遵龙; 王永庆; 王丹; 刘敏珊
郑州大学河南省过程传热与节能重点实验室,河南郑州450002
Author(s):
LIU Min-shan; XU Wei-feng; WANG Yong-qing; WANG Dan; JIN Zun-long
Key Laboratory of Process Heat ’Transfer Energy Saving of Henan Province , Zhengzhou University , Zhengzhou 450002，China
关键词:
换热器﹔变角度; 螺旋折流板; 结构优化; 数值模拟
Keywords:
heat exchanger; variable angles;  helical baffles; structural optimization; numerical simulation
分类号:
TK124
DOI:
10.3969/ j. issn.1671 -6833.2015.05.009
文献标志码:
A
摘要:
针对螺旋折流板换热器壳程进口螺旋流动未充分发展区域分布特点,提出了一种变角度螺旋折流板换热器模型,采用Realizable h-s模型方程对两种折流板形式的换热器流动和传热特性进行了数值研究,并对换热器传热强化机理进行了分析.结果表明:变角度螺旋折流板换热器能够减小壳程进口螺旋流动未充分发展段长度,增加壳程整体螺旋流动强度和流体流动传热速度场与温度场的协同性,强化换热器传热.螺旋角为10°+20°和15°+25°的变角度螺旋折流板换热器较常规螺旋折流板换热器综合性能分别提高7.10%~7.54%和2.88%~4.05 %o .
Abstract:
Variable angle helical baffle heat exchanger is proposed to optimize the non-fully developed sectionin shell inlet. The flow and heat transfer performance of heat exchangers with different forms of helical baffleswere studied,and the mechanisms of heat transfer enhancement for heat exchangers were analyzed. The resultsshow:the length of non-fully developed section could be reduced by using variable angle helical baffle,the in-tensity of overall helical flow and the coordination of temperature field with velocity field increase too,and thenthe heat transfer performance is strengthened.Compared with general helical baffle heat exchanger,the com-prehensive performance of variable angle helical baffle heat exchanger with angle of 10° +20° and 15° +25°could increase 7.10%~7.54% and 2.88 ~4.05%,respectively.

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[1]王永庆,王芳芳,古新,等.缠绕螺纹管螺旋折流板换热器流动与传热数值分析[J].郑州大学学报(工学版),2019,40(04):16.[doi:10.13705/j.issn.1671-6833.2019.03.011]
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