垫条对缠绕管换热器壳侧性能的影响研究

文键 1; 童欣 1; 杨辉著 1; 王斯民 2; 厉彦忠 1

doi:10.7652/xjtuxb201611003

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垫条对缠绕管换热器壳侧性能的影响研究

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- 垫条对缠绕管换热器壳侧性能的影响研究
- Effects of Space Bars on the Shell-Side Performance of Spiral-Wound Heat Exchanger
- 西安交通大学学报 2016年50卷第11期页码：14-20
- 作者机构：
  
  西安交通大学能源与动力学院,西安,710049
- 作者简介：
- 基金信息：
  
  : 2016-05-17。作者简介: 文键(1976—),女,博士,副教授;王斯民(通信作者),男,副教授。基金项目: 国家自然科学基金资助项目(51676146);中央高校基本科研业务费专项资金资助项目
- DOI：10.7652/xjtuxb201611003
  中图分类号： TK124
- 网络首发：2016-11-10，
  
  纸质出版：2016
- 稿件说明：
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文键 1, 童欣 1, 杨辉著 1, 等. 垫条对缠绕管换热器壳侧性能的影响研究[J]. 西安交通大学学报, 2016,50(11):14-20.

Effects of Space Bars on the Shell-Side Performance of Spiral-Wound Heat Exchanger[J]. 2016, 50(11): 14-20.
文键 1, 童欣 1, 杨辉著 1, 等. 垫条对缠绕管换热器壳侧性能的影响研究[J]. 西安交通大学学报, 2016,50(11):14-20. DOI： 10.7652/xjtuxb201611003.

Effects of Space Bars on the Shell-Side Performance of Spiral-Wound Heat Exchanger[J]. 2016, 50(11): 14-20. DOI： 10.7652/xjtuxb201611003.

摘要

目前针对缠绕管换热器的数值模拟研究中

大多为了简化模型而省略了管层间的垫条

造成模拟结果偏离实际情况。通过CFD数值模拟

着重研究了缠绕管换热器中垫条的存在及不同的排布方式和数量对换热器壳侧的流动、传热性能的影响。计算结果表明

垫条的存在不仅影响流体轴向流速

并且在径向截面上更易形成涡旋而加强流体扰动。在相同进口工况下

相比无垫条模型

垫条对齐排布时Nu下降了1.6%～2.5%

换热器单位长度压降ΔP

增加了14.5%～17.0%

强化传热性能指标F

减小了5.7%～5.9%; 错开排布时Nu上升了17.0%～18.1%

ΔP

增加了38.4%～39.9%

增加了13.7%～15.4%。两种垫条排布方式中错开排布能够在更大程度上强化壳侧的湍流

从而强化传热。当垫条数量多于12

依次为13、14、15时

对换热器壳侧的性能影响不大。所做研究为缠绕管换热器的数值模拟提供了新的思路

也为缠绕管换热器的性能优化提供了理论参考。

Abstract

So far in the simulation research of spiral-wound heat exchanger the space bars are rarely considered

the deviation between simulation results and actual situation is thus enlarged. This paper mainly studies the effects of the number and arrangement of space bars on the shell side's thermal and hydraulic performance with numerical simulation method. Numerical results showed that the space bars affect the axial flow rate of shell side and cause more vortexes in radial sections. Compared with the calculation results of the models without space bars under the same inlet condition the Nusselt number Nu of lined up-space bar models was decreased by 1.6%-2.5%;

the pressure drop per heat exchanger length ΔP

was increased by 14.5%-17.0%; the performance evaluation criteria F

was decreased by 5.7%-5.9%; the Nu of staggered-space bar models was increased by 17.0%-18.1%; ΔP

was increased by 38.4%-39.9% and F

was increased by 13.7%-15.4%. Moreover

the staggered arrangement of space bars can further enhance the turbulence of shell side

compared with the lined up arrangement the Nu of staggered arrangement was increased and ΔP

was increased accordingly in the same working conditions. When the number of space bars was more than 12(13

14 and 15)

the number of space bars had little effect on the shell side performance. This paper provides a new approach for spiral-wound heat exchanger simulation and offers a theoretical reference for the performance optimization.

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references

李亚飞, 毛文睿, 张灿灿. 缠绕管换热器的发展与应用 [J]. 广东化工, 2014, 46(1): 131-132.

LI Yafei, MAO Wenrui, ZHANG Cancan. Development and applications of helically coiled heat exchanger [J]. Guangdong Chemical Industry, 2014, 46(1): 131-132.

NEERAAS B O, FREDHEIM A O. Experimental shell-side heat transfer and pressure drop in gas flow for spiral-wound LNG heat exchanger [J]. International Journal of Heat and Mass Transfer, 2004, 47(2): 353-361.

NEERAAS B O, FREDHEIM A O. Experimental data and model for heat transfer, in liquid falling film flow on shell-side, for spiral-wound LNG heat exchanger [J]. International Journal of Heat and Mass Transfer, 2004, 47(14): 3565-3572.

LU Xing, DU Xueping, ZENG Min. Shell-side thermal-hydraulic performances of multilayer spiral-wound heat exchangers under different wall thermal boundary conditions [J]. Applied Thermal Engineering, 2014, 70(2): 1216-1227.

LU Xing. DU Xueping, ZHANG Sen. Experimental and numerical investigation on shell-side performance of multilayer spiral-wound heat exchangers [J]. Chemical Engineering Transactions, 2013, 35: 445-450.

ZENG Min, ZHANG Gaopeng, LI Ye. Geometrical parametric analysis of flow and heat transfer in the shell side of a spiral-wound heat exchanger [J]. Heat Transfer Engineering, 2014, 36(9): 790-805.

WU Zhiyong, CHEN Jie, PU Hui. Numerical simulation of superheated flow of refrigerant at shell side of spiral wound heat exchanger [J]. Gas Heat, 2014, 34(8): 6-11.

WU Zhiyong, CAI Weihua, QIU Guodong. Prediction of mass transfer time relaxation parameter for boiling simulation on the shell-side of LNG spiral wound heat exchanger [J]. Advances in Mechanical Engineering, 2014(4): 1-11.

魏江涛, 曾桃. 缠绕管换热器壳程传热特性的数值研究 [J]. 化学工程与装备, 2015(2): 21-23.

WEI Jiangtao, ZENG Tao. Numerical investigation of spiral wound heat exchanger shell side heat transfer [J]. Chemical Engineer Equipment, 2015(2): 21-23.

于清野. 缠绕管式换热器计算方法研究 [D]. 大连: 大连理工大学, 2011: 19-20.

王抚华. 化工实用专题设计手册: 上册 [M]. 北京: 学苑出版社, 2002: 183-187

FREDHEIM A O. Thermal design of coil-wound LNG heat exchangers, shell-side heat transfer and pressure drop [D]. Trondheim, Norway: Norwegian Institute of Technology, 1994: 39-42.

马飞. 缠绕管换热器传热数值模拟 [D]. 郑州: 郑州大学, 2014: 18-19.

王哲,厉彦忠,李正宇,等.液氦/超流氦制冷系统负压换热器仿真及优化设计.2016,50(8):143.[doi:10.7652/xjtuxb 201608023]

唐上朝,胡浩威,牛东,等.大量不凝性气体存在时不同润湿性管束对流冷凝传热实验研究.2016,50(5):24-31.[doi:10.7652/xjtuxb201605004]

吴毅,胡东帅,王明坤,等.一种新型的跨临界CO2储能系统.2016,50(3):45-49.[doi:10.7652/xjtuxb201603007]

王斯民,王萌萌,顾昕,等.换热器的理论强化传热评价准则研究.2016,50(1):1-7.[doi:10.7652/xjtuxb201601001]

姚尔人,王焕然,席光.一种压缩空气储能与内燃机技术耦合的冷热电联产系统.2016,50(1):22-27.[doi:10.7652/xjtuxb201601004]

粘权鑫,郭少龙,方文振,等.液化天然气浸没燃烧式气化器数值模拟方法研究.2016,50(1):67-71.[doi:10.7652/xjtuxb201601011]

杨辉著,文键,童欣,等.板翅式换热器锯齿型翅片参数的遗传算法优化研究.2015,49(12):90-96.[doi:10.7652/xjtuxb 201512015]

王斯民,王萌萌,顾昕,等.螺旋折流板换热器结构参数多目标优化的数值模拟.2015,49(11):14-19.[doi:10.7652/xjtuxb201511003]

季家东,葛培琪,毕文波.换热器内弹性管束流体组合诱导振动响应的数值分析.2015,49(9):24-29.[doi:10.7652/xjtuxb201509005]

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