缠绕管式换热器的CFD优化

doi:10.12034/j.issn.1009-606X.218262

过程工程学报 ›› 2019, Vol. 19 ›› Issue (4): 693-703.DOI: 10.12034/j.issn.1009-606X.218262

缠绕管式换热器的CFD优化

张旭¹，李明凯²，陆平¹，白芳¹，周川²，华超^1*

1. 中国科学院绿色过程与工程重点实验室(中国科学院过程工程研究所)，北京 100190 2. 武汉东海石化重型装备有限公司，湖北武汉 430207

收稿日期:2018-07-20 修回日期:2018-11-28 出版日期:2019-08-22 发布日期:2019-08-15
通讯作者: 华超 huachao@ipe.ac.cn
基金资助:
十三五水体污染控制与治理科技重大专项

CFD optimizations of spiral-wound heat exchangers

Xu ZHANG¹, Mingkai LI², Ping LU¹, Fang BAI¹, Chuan ZHOU², Chao HUA^1*

1. CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China 2. Wuhan East Petrochemical Heavy Equipment Co., Ltd., Wuhan, Hubei 430207, China

Received:2018-07-20 Revised:2018-11-28 Online:2019-08-22 Published:2019-08-15
Contact: hua chao huachao@ipe.ac.cn

摘要/Abstract

摘要： 用ANSYS CFX软件采用基于有限元的有限体积法对简化的缠绕管式换热器的壳程流动进行模拟，考察管束导程和壳程流速等参数对缠绕管式换热器壳程流体流动特性的影响。结果表明，减小缠绕管束的导程可提高壳程流体的湍流程度，增强壳程流体的均匀程度，减少温度死区并提高换热效率，减小同一截面不同区域的压力差，进而减小因流场不均匀而对管束产生的破坏性应力。提高壳程流速可增强换热，但会增加壳程压降。

关键词: 缠绕管式换热器, 数值模拟, 计算流体力学, 导程, 进口速度

Abstract: As a new kind of efficient and compact heat exchange equipment, spiral-wound heat exchangers which has the characteristics of high heat transfer efficiency, high degree of intensification, less floor space and so on can realize heat transfer among multiple logistics. These advantages can decrease the overall investment. Although many scholars have studied the spiral-wound heat exchangers by numerical simulation, the effects of every operating parameter on the flowing and heat transferring in the shell domain still need to be studied deeply. In this work the shell fluid field of a simplified spiral-wound heat exchanger was simulated by finite volume method based on finite element method with the commercial software ANSYS CFX. By changing the helical leads of spiral tubes and shell inlet velocities, the flow characteristics and heat transfer performance of the shell fluids in spiral-wound heat exchangers were discovered. What is more, some beneficial reference basis was provided for the optimization designs of the spiral-wound heat exchangers. The results showed that the less the helical leads of spiral tubes in the spiral-wound heat exchangers, the higher vorticity and turbulence of the shell fluid domain, the less the temperature dead zone, the better the heat transfer performance between the shell fluid domain and tube fluid domain. Furthermore, reducing the helical leads of spiral tubes in the spiral-wound heat exchangers could make the pressure distribution in the shell fluid domain more balance, which reduced the damage caused by the pressure difference between different regions in the shell fluid domain. Increasing the inlet velocity of shell fluid field was beneficial to enhance heat transfer performance between the shell fluid domain and the tube fluid domain, the pressure drop between the inlet of the shell fluid domain and the outlet of the shell fluid domain increased.

Key words: spiral-wound heat exchanger, numerical simulation, computational fluid dynamics, helical lead, inlet velocity

张旭李明凯陆平白芳周川华超. 缠绕管式换热器的CFD优化[J]. 过程工程学报, 2019, 19(4): 693-703.

Xu ZHANG Mingkai LI Ping LU Fang BAI Chuan ZHOU Chao HUA. CFD optimizations of spiral-wound heat exchangers[J]. Chin. J. Process Eng., 2019, 19(4): 693-703.

参考文献

[1] 王艳. 换热器网络的优化及可视化 [D]. 湘潭：湘潭大学. 2004: 1-2.
Wang Y. The Optimum Design and Display of Heat Exchanger Networks[D]. Xiangtan: Xiangtan University. 2004: 1-2.
[2] 张周卫，薛佳幸，汪雅红，李跃. 缠绕管式换热器的研究与开发[J]. 机械设计与制造, 2014, (9): 12-17.
Zhang Z W, Xue J X, Wang Y H, Li Y. Research and Develop on Coil-Wound Heat Exchanger[J]. Machinery Design & Manufacture, 2014, (9): 12-17.
[3] 王斯民，简冠平，肖娟，王家瑞，文键. 缠绕管式换热器结构参数多目标优化数值模拟研究[J]. 西安交通大学学报, 2017,51:9-15.
Wang S M, Jian G P, Xiao J, Wang J R, Wen J. Multi-Objective Optimization on the Structural Parameters of Spiral Wound Heat Exchanger[J]. Journal of Xi’An Jiao Tong University, 2017,51:9-15.
[4] 张勇，刘鸿彦，李守谦. 缠绕管式换热器壳程流体特性分析[J]. 石油和化工设备, 2016,19(3):16-21.
Zhang Y, Liu H Y, Li S Q. Chan Rao Guan Shi Huan Re Qi Ke Cheng Li Ti Te Xing Fen Xi[J]. Shi You He Hua Gong She Bei, 2016,19(3): 16-21.
[5] 刘博，李庆生，李淑恒. 单根缠绕管绕流的二维数值模拟[J]. 石油机械, 2016,44(2):111-116.
Liu B, Li Q S, Li S H. 2D Numerical Simulation of Fluid Flow around the Single Spiral Tube [J]. CHINA PETROLEUM MACHINERY, 2016, 44(2):111-116.
[6] 田杨，陈光辉，李建隆. 水滴型缠绕管换热器壳程流动与传热研究[J]. 化工设计通讯, 2017, 43(7): 147-151.
Tian Y, Chen G H, Li J L. Study on Flow and Heat Transfer of Shell-side Coil-wound Heat Exchanger in Water Drop Type[J]. Chemical Engineering Design Communications, 2017, 43(7): 147-151.
[7] Ren Y, Cai WH, Chen J, et al. The heat transfer characteristic of shell-side film flow in spiral wound heat exchanger under rolling working conditions[J]. Applied Thermal Engineering, 2018,132:233-244.
[8] Ren Y, Cai WH, Jiang YQ. Numerical study on shell-side flow and heat transfer of spiral-wound heat exchanger under sloshing working conditions[J]. Applied Thermal Engineering, 2018,134:287-297.
[9] Wu ZY, Wang H, Cai WH, et al. Numerical investigation of boiling heat transfer on the shell-side of spiral wound heat exchanger[J]. Heat And Mass Transfer, 2016,52:1973-1982.
[10] Duan ZD, Ren T, Ding GL, et al. A dynamic model for FLNG spiral wound heat exchanger with multiple phase-change streams based on moving boundary method[J]. Journal Of Natural Gas Science And Engineering, 2016,34:657-669.
[11] Wang SM, Jian GP, Wang JR, et al. Application of entransy-dissipation-based thermal resistance for performance optimization of spiral-wound heat exchanger[J]. International Journal of Heat and Mass Transfer, 2018, 116: 743-750.
[12] Ren Y, Jiang YQ, Cai WH, et al. Numerical study on shell-side saturated boiling heat transfer in spiral wound heat exchanger[J]. Applied Thermal Engineering, 2018,140: 657-670.
[13] Ren Y, Cai WH, Chen J, et al. Numerical study on the shell-side flow and heat transfer of superheated vapor flow in spiral wound heat exchanger under rolling working conditions[J]. International Journal of Heat and Mass Transfer, 2018, 121: 691-702.
[14] Wu JX, Liu SL, Wang MQ. Process calculation method and optimization of the spiral-wound heat exchanger with bilateral phase change[J]. Applied Thermal Engineering, 2018, 134: 360-368.
[15] Wang SM, Jian GP, Xiao J, et al. Optimization investigation on configuration parameters of spiral-wound heat exchanger using Genetic Aggregation response surface and Multi-Objective Genetic Algorithm[J]. Applied Thermal Engineering, 2017, 119: 603-609.
[16] Z.Y. Wu WHC, G.D. Qiu, Y.Q. Jiang Prediction of mass transfer time relaxation parameter for boiling simulation on the shell-side of LNG spiral wound heat exchanger[J]. Adv Mech Eng, 2014:1-11.
[17] C. Ding HTH, G.L. Ding, J. Chen, X.G. Mi, S.C. Yu, J.R. Li. Experimental investigation on downward flow boiling heat transfer characteristics of propane in shell side of LNG spiral wound heat exchanger[J]. Int J Refrig 2017,84:13-25.
[18] C. Ding HTH, G.L. Ding, J. Chen, X.G. Mi, S.C. Yu. Influences of tube pitches on heat transfer and pressure drop characteristics of two-phase propane flow boiling in shell side of LNG spiral wound heat exchanger[J]. Applied Thermal Engineering, 2018,131:270-283.

缠绕管式换热器的CFD优化

CFD optimizations of spiral-wound heat exchangers

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

[1]	徐胜楠刘宏斐李雪良堵国成陈坚. 鼓泡塔细胞反应器流体力学与传质特性[J]. 过程工程学报, 2022, 22(9): 1192-1202.
[2]	高华鑫刘雪东张炜查晓峰吕圣男刘佳君吕开新. 新型热解炉燃烧室流热固耦合仿真与结构优化[J]. 过程工程学报, 2022, 22(9): 1203-1212.
[3]	田玉龙杨秀山孔行健许德华张志业. 磷石膏颗粒湍动流化特性实验及模拟[J]. 过程工程学报, 2022, 22(9): 1224-1231.
[4]	熊桂龙苏文康王安奇王一泽. 颗粒形状对包衣设备内药片颗粒运动特性影响的数值模拟[J]. 过程工程学报, 2022, 22(9): 1232-1243.
[5]	张建伟牛聚超董鑫冯颖. 撞击流反应器流场数值模拟及其混合性能优化[J]. 过程工程学报, 2022, 22(9): 1244-1252.
[6]	张静王胜昌田志国吴剑华龚斌. 周向多入口凹壁面切向射流流动特性分析[J]. 过程工程学报, 2022, 22(8): 1030-1039.
[7]	靳波张亚新. 颗粒尺度下混合催化剂床层中CO₂加氢反应体系数值模拟[J]. 过程工程学报, 2022, 22(8): 1040-1052.
[8]	陈毕清管小平杨宁白丁荣. 搅拌槽中酯化反应热失控的CFD模拟[J]. 过程工程学报, 2022, 22(8): 1053-1060.
[9]	段怡如李宝宽黄雪驰刘中秋柴玉莹. 电渣重熔H13模具钢过程碳偏析的模拟研究[J]. 过程工程学报, 2022, 22(8): 1074-1084.
[10]	王翠华李光瑜苏方正龚斌吴剑华. 螺旋套管换热器壳程流体湍流换热热力性能数值研究[J]. 过程工程学报, 2022, 22(7): 935-943.
[11]	张炜刘文津张玉明李家州岳君容. 高温加压微型流化床内脉冲气射流扰动的数值模拟[J]. 过程工程学报, 2022, 22(7): 944-953.
[12]	李倩吉华冯东林张子扬段宗幸. 孔分布对多孔孔板流场和噪声的影响[J]. 过程工程学报, 2022, 22(5): 601-611.
[13]	李雅侠许鹏宇韩泽民李运杭崔峰源张静. 矩形截面高宽比对射流强化螺旋通道传热性能的影响[J]. 过程工程学报, 2022, 22(5): 612-621.
[14]	胡涛向星葛蔚王利民. 基于多GPU并行格子Boltzmann方法的方管湍流模拟[J]. 过程工程学报, 2022, 22(3): 318-328.
[15]	周里群王智明汪振南李玉平黄治中. 三级活塞推料离心机数值模拟与操作参数优化[J]. 过程工程学报, 2022, 22(3): 329-337.