新型六分扇形螺旋折流板换热器壳程传热及流动特性

杜文静; 王红福; 曹兴; 程林

doi:10.3969/j.issn.0438-1157.2013.09.007

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新型六分扇形螺旋折流板换热器壳程传热及流动特性

流体力学与传递现象 | 更新时间：2025-12-10

- 新型六分扇形螺旋折流板换热器壳程传热及流动特性
- Heat transfer and fluid flow on shell-side of heat exchangers with novel sextant sector helical baffles
- 化工学报 2013年第9期页码：3123-3129
- 作者机构：
  
  山东大学热科学与工程研究中心,山东,济南,250061
- 作者简介：
  
  杜文静(1977- ),女,副教授.
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.09.007
  中图分类号： K124
- 网络首发：2013-09-05，
  
  纸质出版：2013-09-05
- 稿件说明：
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杜文静, 王红福, 曹兴, 等. 新型六分扇形螺旋折流板换热器壳程传热及流动特性[J]. 化工学报, 2013,(9):3123-3129.

DU Wenjing, WANG Hongfu, CAO Xing, et al. Heat transfer and fluid flow on shell-side of heat exchangers with novel sextant sector helical baffles[J]. CIESC Journal, 2013, (9): 3123-3129.
杜文静, 王红福, 曹兴, 等. 新型六分扇形螺旋折流板换热器壳程传热及流动特性[J]. 化工学报, 2013,(9):3123-3129. DOI： 10.3969/j.issn.0438-1157.2013.09.007.

DU Wenjing, WANG Hongfu, CAO Xing, et al. Heat transfer and fluid flow on shell-side of heat exchangers with novel sextant sector helical baffles[J]. CIESC Journal, 2013, (9): 3123-3129. DOI： 10.3969/j.issn.0438-1157.2013.09.007.

摘要

针对现有四分螺旋折流板换热器中心区域漏流明显的特征

提出了一种新型的六分扇形螺旋折流板换热器。建立了六分扇形螺旋折流板换热器的三维物理模型

应用Ansys CFX软件对其壳程流动与传热特性进行数值模拟

分析了不同螺旋角(10°、20°、30°、40°)和不同工况下六分扇形螺旋折流板换热器的壳侧性能

并与传统的弓形折流板换热器作对比。结果表明

六分扇形螺旋折流板可以显著减少三角区漏流现象的发生

壳程流体旋流特性较好。随着螺旋角的增大

壳侧速度场与温度场分布更加均匀

综合换热性能逐步提高。

Abstract

Faced with the obvious leakage flow phenomena in the heat exchanger with quarter helical baffles

a novel sextant helical baffled heat exchanger was put forward in this paper.The 3-dimensional physical model of sextant helical baffled heat exchanger was built;numerical simulation was performed with different helical angles(10°

20°

30°

40°)under different working conditions.ANSYS CFX software was used to obtain detailed fluid flow and heat transfer characteristics on the shell-side

and comparison was made between the new and the traditional segmental baffled heat exchangers.Results indicate that the leakage flow is significantly reduced with the sextant helical baffles

and shell-side rotational flow characteristics are also improved.As the helical angle increases

the velocity field and the temperature field become much uniform

so the comprehensive heat transfer performance is improved.

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