螺旋盘管式水-水换热器传热与流动特性实验研究
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摘要
对螺旋盘管式换热器的特性及国内外研究状况进行了综述,对一种新型的螺旋盘管式水-水换热器进行了传热与流动特性实验研究。实验结果表明,传热系数随冷、热水流速的增加呈现先增加后明显趋缓的变化,存在比较经济的流速数值;实验拟合得到管外流体的对流换热准则关系式,并且得到了一定流速范围内管程和壳程流体压降与流速的关联式,为螺旋盘管换热器的研究及产品设计提供了参考与依据。
The paper presents an overview of the early studies on the characteristics of the helical coil heat exchanger and its improvement. The experimental study of heat transfer and flow characteristics of a new kind of helical coil water-water heat exchanger is carried out. The experiment results indicate that the heat transfer coefficient increases first and then slows down obviously with the increase of the flowing velocity of the cold water and the hot water,which suggests an profitable flowing velocity; the relationship of the convective heat transfer coefficient of the fluid outside the tube is obtained by experimental fit,and the relationships between pressure drop and flowing velocity inside and outside the tube are obtained in a specific range,which provides reference for the study and product design of the helical coil heat exchanger.
The paper presents an overview of the early studies on the characteristics of the helical coil heat exchanger and its improvement. The experimental study of heat transfer and flow characteristics of a new kind of helical coil water-water heat exchanger is carried out. The experiment results indicate that the heat transfer coefficient increases first and then slows down obviously with the increase of the flowing velocity of the cold water and the hot water,which suggests an profitable flowing velocity; the relationship of the convective heat transfer coefficient of the fluid outside the tube is obtained by experimental fit,and the relationships between pressure drop and flowing velocity inside and outside the tube are obtained in a specific range,which provides reference for the study and product design of the helical coil heat exchanger.
引文
[1]李隆键,辛明道,崔文智.三维内肋螺旋管内强化换热实验[J].热能动力工程,2004,19(3):270-273.
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[6]刘晓见.非均匀热流条件下螺旋管内流动与传热特性研究[D].重庆:重庆大学,2015.
[7]陈志光,秦朝葵,熊超.螺旋管传热系数的研究[J].热科学与技术,2009,8(2):131-135.
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[9]FERNANDEZ-SEARA J,PINEIRO-PONTEVEDRA C,DOPAZO J A.On the performance of a vertical helical coil heat exchanger.Numerical model and experimental validation[J].Applied Thermal Engineering,2014,62(2):680-689.
[10]LU X,ZHANG G,CHEN Y T,et al.Effect of geometrical parameters on flow and heat transfer performances in multi-stream spiral-wound heat exchangers[J].Applied Thermal Engineering,2015(89):1104-1116.
[11]ALIMORADI A,VEYSI F.Prediction of heat transfer coefficients of shell and coiled tube heat exchangers using numerical method and experimental validation[J].International Journal of Thermal Sciences,2016(107):196-208.
[12]王斯民,简冠平,肖娟,等.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(5):9-15.
[14]邓高飞,崔晓钰,王晓占,等.螺旋槽管直管和盘旋螺旋槽管的换热性能比较[J].制冷与空调:四川,2012(2):209-212.
[13]淦吉昌.螺纹螺旋管强化传热的数值模拟及场协同分析[D].南昌:南昌大学,2012.
[15]欧阳新萍,高铭,刘冰翛.长导程双头螺旋槽管换热与流动阻力性能试验研究[J].动力工程学报,2015,35(11):887-892.
[16]RESHMA A,REDDY M S,RAO V S.Thermal analysis of helically grooved coil in a concentric tube heat exchanger[J].International Journal of Multidisciplinary Advanced Research Trends,2015,2(4):32-39.
[17]HUSSAIN A,FSADNI A M.CFD analysis of the two-phase bubbly flow characteristics in helically coiled rectangular and circular tube heat exchangers[C].Experimental Fluid Mechanics,2016.
[18]刘重裕,秦红,董丹.新型螺旋盘管换热器的流动及传热性能研究[J].化工设备与管道,2014,51(3):35-39.
[19]THOMAS A J K,BINDEESH R C,THOMAS N S,et al.Experimental Investigation on Heat Transfer Augmentation in Helical Coil Heat Exchanger Using Wire Coil/Spring Inserts[J].Imperial Journal of Interdisciplinary Research,2016,11(2):1-5.
[20]PANAHI D,ZAMZAMIAN K.Heat transfer enhancement of shell-and-coiled tube heat exchanger utilizing helical wire turbulator[J].Applied Thermal Engineering,2017(115):607-615.
[21]徐洪涛.螺旋管道内的流动阻力和传热性能研究[D].上海:华东理工大学,2011.
[22]KARAMALLAHP A A,HISHAM P A,HOSHIP.The Effect of Pitch and Fins on Enhancement of Heat Transfer in Double Pipe Helical Heat Exchanger[J].International Journal of Scientific&Engineering Research,2015,6(10):971-977.
[23]ANDRZEJCZYK R,MUSZYNSKI T.Thermodynamic and geometrical characteristics of mixed convection heat transfer in the shell and coil tube heat exchanger with baffles[J].Applied Thermal Engineering,2017(121):115-125.
[24]杨世铭,陶文铨.传热学第三版[M].北京:高等教育出版社,1998.
[25]朱聘冠.换热器原理及计算[M].北京:清华大学出版社,1987.
[2]张小艳,赵珊媛,洪珊瑚.水在螺旋盘管内的换热及压降特性研究[J].西安科技大学学报,2014,34(2):174-179.
[3]夏雅君.螺旋盘管中强制对流换热的研究[J].石油化工设备,1986,11(15):8-13.
[4]陈素君.螺旋通道内对流换热热力性能数值模拟[D].重庆:重庆大学,2008.
[5]DRAVID A N,SMITH K A,MERRILL E W,et al.Effect of secondary fluid motion on laminar flow heat transfer in helically coiled tubes[J].Aiche Journal,1971,17(5):1114-1122.
[6]刘晓见.非均匀热流条件下螺旋管内流动与传热特性研究[D].重庆:重庆大学,2015.
[7]陈志光,秦朝葵,熊超.螺旋管传热系数的研究[J].热科学与技术,2009,8(2):131-135.
[8]JAMSHIDI N,FARHADI M,GANJI D D,et al.Experimental analysis of heat transfer enhancement in shell and helical tube heat exchangers[J].Applied Thermal Engineering,2013,51(1-2):644-652.
[9]FERNANDEZ-SEARA J,PINEIRO-PONTEVEDRA C,DOPAZO J A.On the performance of a vertical helical coil heat exchanger.Numerical model and experimental validation[J].Applied Thermal Engineering,2014,62(2):680-689.
[10]LU X,ZHANG G,CHEN Y T,et al.Effect of geometrical parameters on flow and heat transfer performances in multi-stream spiral-wound heat exchangers[J].Applied Thermal Engineering,2015(89):1104-1116.
[11]ALIMORADI A,VEYSI F.Prediction of heat transfer coefficients of shell and coiled tube heat exchangers using numerical method and experimental validation[J].International Journal of Thermal Sciences,2016(107):196-208.
[12]王斯民,简冠平,肖娟,等.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(5):9-15.
[14]邓高飞,崔晓钰,王晓占,等.螺旋槽管直管和盘旋螺旋槽管的换热性能比较[J].制冷与空调:四川,2012(2):209-212.
[13]淦吉昌.螺纹螺旋管强化传热的数值模拟及场协同分析[D].南昌:南昌大学,2012.
[15]欧阳新萍,高铭,刘冰翛.长导程双头螺旋槽管换热与流动阻力性能试验研究[J].动力工程学报,2015,35(11):887-892.
[16]RESHMA A,REDDY M S,RAO V S.Thermal analysis of helically grooved coil in a concentric tube heat exchanger[J].International Journal of Multidisciplinary Advanced Research Trends,2015,2(4):32-39.
[17]HUSSAIN A,FSADNI A M.CFD analysis of the two-phase bubbly flow characteristics in helically coiled rectangular and circular tube heat exchangers[C].Experimental Fluid Mechanics,2016.
[18]刘重裕,秦红,董丹.新型螺旋盘管换热器的流动及传热性能研究[J].化工设备与管道,2014,51(3):35-39.
[19]THOMAS A J K,BINDEESH R C,THOMAS N S,et al.Experimental Investigation on Heat Transfer Augmentation in Helical Coil Heat Exchanger Using Wire Coil/Spring Inserts[J].Imperial Journal of Interdisciplinary Research,2016,11(2):1-5.
[20]PANAHI D,ZAMZAMIAN K.Heat transfer enhancement of shell-and-coiled tube heat exchanger utilizing helical wire turbulator[J].Applied Thermal Engineering,2017(115):607-615.
[21]徐洪涛.螺旋管道内的流动阻力和传热性能研究[D].上海:华东理工大学,2011.
[22]KARAMALLAHP A A,HISHAM P A,HOSHIP.The Effect of Pitch and Fins on Enhancement of Heat Transfer in Double Pipe Helical Heat Exchanger[J].International Journal of Scientific&Engineering Research,2015,6(10):971-977.
[23]ANDRZEJCZYK R,MUSZYNSKI T.Thermodynamic and geometrical characteristics of mixed convection heat transfer in the shell and coil tube heat exchanger with baffles[J].Applied Thermal Engineering,2017(121):115-125.
[24]杨世铭,陶文铨.传热学第三版[M].北京:高等教育出版社,1998.
[25]朱聘冠.换热器原理及计算[M].北京:清华大学出版社,1987.