[1]李彦晴,陈亚平,刘化瑾,等.三分螺旋折流板换热器壳侧换热系数的关联式[J].东南大学学报(自然科学版),2010,40(1):149-153.[doi:10.3969/j.issn.1001-0505.2010.01.028]
 Li Yanqing,Chen Yaping,Liu Huajin,et al.Correlation equation of heat transfer coefficient at shell-side of trisection baffled helix heat exchangers[J].Journal of Southeast University (Natural Science Edition),2010,40(1):149-153.[doi:10.3969/j.issn.1001-0505.2010.01.028]
点击复制

三分螺旋折流板换热器壳侧换热系数的关联式()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
40
期数:
2010年第1期
页码:
149-153
栏目:
能源与动力工程
出版日期:
2010-01-20

文章信息/Info

Title:
Correlation equation of heat transfer coefficient at shell-side of trisection baffled helix heat exchangers
作者:
李彦晴 陈亚平 刘化瑾 王伟晗 周兵
东南大学能源与环境学院,南京 210096
Author(s):
Li Yanqing Chen Yaping Liu Huajin Wang Weihan Zhou Bing
School of Energy and Environment, Southeast University, Nanjing 210096, China
关键词:
螺旋折流板换热器 三分螺旋折流板 倾斜角 当量螺旋角 性能实验
Keywords:
helix baffled heat exchanger trisection helical baffles inclined angle equivalent helix angle performance test
分类号:
TK124
DOI:
10.3969/j.issn.1001-0505.2010.01.028
摘要:
对三分螺旋折流板换热器和对比方案弓形折流板换热器的传热和压降性能进行实验测试,其中,三分螺旋折流板换热器包括倾斜角分别为10°,15°,20°的扇形折流板,倾斜角为15°的椭圆折流板和倾斜角为20°的扇形搭接折流板5种方案.实验结果表明,20°倾斜角扇形折流板方案的壳侧换热系数最高且压降较低; 折流板轴向搭接方案并不合理; 当量螺旋角对换热器的性能起决定作用.根据实验数据拟合出含有倾斜角修正因子的三分螺旋折流板换热器壳侧换热系数的关联式,所计算的10°,15°和20°扇形折流板方案的数值与实验值相比误差大多小于±10%.
Abstract:
The experimental results of the heat transfer and pressure drop performances of trisection baffled helix heat exchangers with inclined angles of 10°, 15° and 20°(sector baffles), 15°(ellipse baffles), and 20°(overlap sector baffles)are presented. As a compassion scheme the results from a segmental baffled heat exchanger are also provided. The results show that the scheme with 20° sector baffles inclined angle has the highest shell side heat transfer coefficient and low pressure drop; the scheme of axial overlap baffled helix heat exchanger is not reasonable; the decisive factor to the performance is the equivalent helix angle. The correlation equation is obtained including inclined baffle angle correction factor for shell-side heat transfer coefficient of trisection baffled helix heat exchangers, and the deviation errors between the majority of the results of both calculation and experiment are less than ±10%.

参考文献/References:

[1] Lutcha J,Nemcansky J.Performance improvement of tubular heat exchangers by helical baffles [J].Chemical Engineering Research & Design, 1990,68(3):263-270.
[2] Stehlik P,Nemcansky J,Kral D,et al.Comparison of correction factors for shell-and-tube heat exchangers with segmental or helical baffles [J].Heat Transfer Engineering, 1994,15(1):55-65.
[3] Stehlik P,Wadekar V.Different strategies to improve industrial heat exchange [J]. Heat Transfer Engineering,2002,23(6):36-48.
[4] Andrews M,Master B I.Three-dimensional modeling of a helixchanger heat exchanger using CFD [J].Heat Transfer Engineering, 2005,26(6):22-31.
[5] Master B I,Chunangad K S,Boxma A J,et al.Most frequently used heat exchangers from pioneering research to worldwide applications [J] .Heat Transfer Engineering,2006,27(6):4-11.
[6] Jafari Nasra M R,Shafeghat A.Fluid flow analysis and extension of rapid design algorithm for helical baffle heat exchangers [J]. Applied Thermal Engineering,2008,28(11/12):1324-1332.
[7] 李斌,陶文铨,何雅玲.螺旋折流板换热器螺距计算的通用公式[J].化工学报,2007,58(3):587-590.
  Li Bin,Tao Wenquan,He Yaling.Determination of helical lead distance of shell-and-tube heat exchanger with helical baffles [J].Journal of Chemical Industry and Engineering, 2007,58(3):587-590.(in Chinese)
[8] 王秋旺.螺旋折流板管壳式换热器壳程传热强化研究进展[J].西安交通大学学报,2004,38(9):881-886.
  Wang Qiuwang.Current status and development of shell-side heat transfer enhancement of shell-and-tube heat exchangers with helical baffles [J]. Journal of Xi’an Jiaotong University,2004,38(9):881-886.(in Chinese)
[9] 陈世醒,张克铮,张强.螺旋折流板换热器的开发与研究(Ⅰ)——高粘度流体下的中试研究[J].抚顺石油学院学报,1998,18(3):31-35.
  Chen Shixing,Zhang Kezhen,Zhang Qiang.Experimental investigation of the helical baffles heat exchanger for high viscosity fluid [J]. Journal of Fushun Petroleum Institute,1998,18(3):31-35.(in Chinese)
[10] 陈亚平.适合于正三角形排列布管的螺旋折流板换热器[J].石油化工设备,2008,37(6):1-5.
  Chen Yaping.A novel helix baffled heat exchanger suitable for tube bundle arrangement with equilateral triangles [J].Petro-Chemical Equipment,2008,37(6):1-5.(in Chinese)
[11] 周兵,陈亚平,王伟晗.管壳式换热器壳侧强化传热与管束支撑方式的研究进展[J].节能,2009,28(3):17-20.
  Zhou Bing,Chen Yaping,Wang Weihan.Development of heat transfer enhancement and tube bundle support at shell side of shell-and-tube heat exchangers [J].Energy Conservation, 2009,28(3):17-20.(in Chinese)
[12] 钱颂文.换热器设计手册 [M].北京:化学工业出版社,2002:66-80.
[13] 王晨,桑芝富.1/4椭圆螺旋折流板换热器性能的数值模拟[J].过程工程学报,2007,7(3):425-431.
  Wang Chen,Sang Zhifu.Numerical simulation of performance of heat exchangers with quarter-ellipse helical baffles [J].Chinese Journal of Process Engineering, 2007,7(3):425-431.(in Chinese)
[14] Lei Yonggang,He Yaling,Li Rui,et al.Effects of baffle inclination angle on flow and heat transfer of a heat exchanger with helical baffles [J].Chemical Engineering and Processing, 2008,47(12):2336-2345.
[15] 孙德兴.水力直径作为当量直径的适用范围、缺欠与修正[J].工程热物理学报,1987,8(4):357-362.
  Sun Dexing.The applicable range,defect and correction of equivalent diameter used hydraulic diameter [J].Journal of Engineering Thermophysics, 1987,8(4):357-362.(in Chinese)

相似文献/References:

[1]董聪,陈亚平,吴嘉峰,等.周向重叠三分螺旋折流板换热器性能比较[J].东南大学学报(自然科学版),2013,43(4):793.[doi:10.3969/j.issn.1001-0505.2013.04.022]
 Dong Cong,Chen Yaping,Wu Jiafeng,et al.Performance comparison of circumferential overlap trisection helical baffle heat exchanger[J].Journal of Southeast University (Natural Science Edition),2013,43(1):793.[doi:10.3969/j.issn.1001-0505.2013.04.022]
[2]周家豪,吴嘉峰,陈亚平.三分螺旋折流板的疏液结构对立式冷凝器性能的影响[J].东南大学学报(自然科学版),2017,47(1):61.[doi:10.3969/j.issn.1001-0505.2017.01.012]
 Zhou Jiahao,Wu Jiafeng,Chen Yaping.Influences on performances of vertical condensers with different liquid draining structures of trisection helical baffles[J].Journal of Southeast University (Natural Science Edition),2017,47(1):61.[doi:10.3969/j.issn.1001-0505.2017.01.012]

备注/Memo

备注/Memo:
作者简介: 李彦晴(1986—),女,硕士生; 陈亚平(联系人),男,博士,教授,博士生导师,ypgchen@sina.com.
基金项目:国家自然科学基金资助项目(50776016)、“十一五”国家科技支撑计划重点资助项目(2008BAJ12B02).
引文格式: 李彦晴,陈亚平,刘化瑾,等.三分螺旋折流板换热器壳侧换热系数的关联式[J]. 东南大学学报:自然科学版,2010,40(1):149-153.[doi:10.3969/j.issn. 1001-0505.2010.01.028]
更新日期/Last Update: 2010-01-20