多股流混合管束高压换热器性能研究  

Study on the Performance of High Pressure Heat Exchanger with Multi Stream Mixed Tube Bundles

作　　者：苏泊源 李卫东 李腾飞 SU Boyuan;LI Weidong;LI Tengfei(Henan Boiler And Pressure Vessel Inspection Technology Research Institute,Zhengzhou 450011,China)

机构地区：[1]河南省锅炉压力容器检验技术科学研究院,河南郑州450011

出　　处：《河南化工》2024年第11期25-29,共5页Henan Chemical Industry

摘　　要：为了研究换热管螺旋角度、层间距、管间距等关键结构参数对换热器性能的影响,建立了多股流混合管束高压换热器模型。数值模拟分析了不同结构参数下换热器壳程流体流动、传热和压降性能,分析了其对换热器性能的影响规律,确定了混合管束换热器综合性能较优的结构参数。结果表明:多股流混合管束高压换热器的壳程换热系数随层间距、螺旋角的增大而减小,在一定范围内随管间距的增大而增大;壳程压降随层间距、管间距和螺旋角的增大均减小;总传热量随螺旋角和层间距改变的变化程度不大,随管间距的增大而减小。In order to study the influence of key structural parameters such as spiral angle,layer spacing and tube spacing on the performance of heat exchanger,a multi-stream mixed tube bundle high-pressure heat exchanger model is established.The fluid flow,heat transfer and pressure drop performance of the heat exchanger shell side under different structural parameters are numerically simulated and analyzed.Its influence of the three on the performance of the heat exchanger is analyzed,and the structural parameters with better comprehensive performance of the mixed tube bundle heat exchanger are determined.The results show that the shell-side heat transfer coefficient of the multi-stream mixed tube bundle high-pressure heat exchanger decreases with the increasing of the layer spacing and the spiral angle,and increaseing with the increasing of the tube spacing within a certain range.The shell-side pressure drop decreases with the increasing of layer spacing,tube spacing and helix angle.The total heat transfer has little change with the change of spiral angle and layer spacing,and decreases with the increasing of tube spacing.

关 键 词：多股流 换热器 结构参数 传热性能 压降性能 数值模拟 

分 类 号：TQ050.1[化学工程] TQ050.2