[1]刘敏珊,许伟峰,靳遵龙.三角区漏流对螺旋折流板换热器综合性能的影响[J].郑州大学学报(工学版),2014,35(06):1-4.[doi:10.3969/ j. issn.1671 -6833.2014.06.001]
　LIU Min-shan,XU Wei-feng,JIN Zun-long,et al.Impact of Triangle Leakage on Comprehensive Performanceof Heat Exchangers with Helical Baffles[J].Journal of Zhengzhou University (Engineering Science),2014,35(06):1-4.[doi:10.3969/ j. issn.1671 -6833.2014.06.001]
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三角区漏流对螺旋折流板换热器综合性能的影响()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
35
期数:
2014年06期
页码:
1-4
栏目:
出版日期:
2014-11-25

文章信息/Info

Title:
Impact of Triangle Leakage on Comprehensive Performanceof Heat Exchangers with Helical Baffles
作者:
刘敏珊; 许伟峰; 靳遵龙
郑州大学河南省过程传热与节能重点实验室,河南郑州450001
Author(s):
LIU Min-shan; XU Wei-feng ; JIN Zun-long; WANG Yong-qing; WANG Dan
Key Laboratory of Process Heat Transfer Energy Saving of Henan Province,Zhengzhou University , Zhengzhou 450001, China
关键词:
换热器﹔螺旋折流板; 漏流; 数值模拟
Keywords:
heat exchanger;  helical baffle ;  leakage ;  numerical simulation
DOI:
10.3969/ j. issn.1671 -6833.2014.06.001
文献标志码:
A
摘要:
对螺旋角为15°、20°的1/3椭圆螺旋折流板换热器进行数值模拟,研究连续搭接相邻折流板间三角区漏流对换热器传热及阻力性能的影响.通过分析换热器存在三角区漏流与堵住三角区无漏流模型的模拟计算结果可知:三角区漏流使壳侧流体流动短路现象严重;三角区漏流使换热器整体传热系数、壳程压降、综合性能降低;堵住三角漏流区后,传热系数增加8.5% ~ 11% ,壳程压降增加幅度不大，综合性能增加8.1 % ~11 . 1 % .
Abstract:
A numerical simulation of trisection-ellipse heat exchangers with helical baffles is carried out， andthe helix angles are 15° and 20° respectively ， and we studied the impact of triangle leakage between continu-ously overlapped and adjacent baffles on heat transfer and resistance performance of heat exchangers.Throughthe comparative analysis about the simulation results of existing triangle leakage and that of blocking trianglearea without leakage , the results show :triangle leakage makes a more serious short circuit flow for the shell-si-ded fluid;Triangle leakage makes heat transfer coefficient，shell-sided pressure drop and comprehensive per-formance of heat exchanger reduce. When triangle leakage is blocked，heat transfer coefficient increases by8.5% ~ 11% , shell-sided pressure drop increases marginally , comprehensive performance increases by 8.1 %~11 . 1 % .

参考文献/References:

[1]MASTER B I，CHUNANGAD K S，BOXMA A J,etal. Most frequently used heat exchanger from pionee-ring research to worldwideapplication [ J ]. HeatTransfer Engineering ，2006,27(6) :4- 11.

[2]潘振,陈宝东,商丽艳.螺旋折流板换热器的研究与进展[J].节能技术,2006,24( 1 ):82 - 85.
[3]王秋旺,罗来勤,曾敏,等.交错螺旋折流板管壳式换热器壳侧传热与压力降性能[J].化工学报，2005,56(4) :598 -601 .

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