波纹节距对板壳式换热器壳程流动性能和阻力性能的影响  

Numerical Simulation of Effect of Corrugated Pitch on Shell-Side Flow and Resistance Performance of Plate-Shell Heat Exchanger

作　　者：石迎迎 赵巍[1] 袁雨文 张华[1] 潘书毅 袁兴阳 SHI Yingying;ZHAO Wei;YUAN Yuwen;ZHANG Hua;PAN Shuyi;YUAN Xingyang(School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;Shanghai Institute of Quality Inspection and Technical Research,Shanghai 201114,China)

机构地区：[1]上海理工大学能源与动力工程学院,上海200093 [2]上海市质量监督检验技术研究院,上海201114

出　　处：《轻工机械》2021年第5期32-36,共5页Light Industry Machinery

基　　金：国家重点研发计划(2020YFF0303900)。

摘　　要：为了对板壳式换热器进行优化设计,课题组以某型号板壳式换热器的壳侧流道为研究对象,建立单流道物理模型,采用FLUENT软件对壳侧流体的流动性能和阻力性能进行模拟研究。模拟结果表明:随波纹节距的增大,流体流线由十字交叉流逐渐转为曲折流,流体平均流速和湍动能逐渐减小;波纹节距为3.9 mm时流动性能较好。随波纹节距的增大,压降逐渐减小。在同一波纹节距下,随着雷诺数的增大压降逐渐增大;波纹节距为15.9 mm时,阻力性能较好。减小节距可以得到较好的壳程流动性能;增大节距可以得到较好的壳程阻力性能。In order to optimize the plate-shell heat exchanger,the shell-side flow channel of a certain type of plate-shell heat exchanger was taken as the research object,and the single channel physical model was established to simulate the flow performance and resistance performance of shell-side fluid with FLUENT software.The simulation results show that with the increase of corrugated pitch,the flowing streamline changes from crisscross pattern into zigzag pattern,the average velocity and turbulent kinetic energy of fluid accordingly decrease gradually.When the corrugated pitch is 3.9 mm,the better flowing performance can be obtained.The pressure drop will decrease with the growing corrugated pitch.Under the same corrugated pitch,the pressure drop increases with the increase of Reynolds number.When the corrugated pitch reaches 15.9 mm,the resistance performance is relatively good.Better shell side flowperformance can be obtained by decreasing the pitch,while better shell side resistance performance can be obtained by increasing the pitch.

关 键 词：板壳式换热器 波纹节距 流动性能 阻力性能 

分 类 号：TB657.5[一般工业技术—制冷工程] TH39[机械工程—机械制造及自动化]