波纹板结构参数对传热及力学特性的数值研究  

Numerical Study of the Effect of Corrugated Plate Structure Parameters on Heat Transfer and Mechanical Properties

作　　者：苏厚德[1,3] 徐建新 张玉福 马一鸣[1,3] 张型波 武建军[2] SU Hou-de;XU Jian-xin;ZHANG Yu-fu;MA Yi-ming;ZHANG Xing-bo;WU Jian-jun(Lanpec Technologies Limited;MOE Key Lab of Mechanics on Disaster and Environment in West China,College of Civil Engineering and Mechanics,Lanzhou University;Shanghai Lanbin Petrochemical Equipment Co.,Ltd.)

机构地区：[1]甘肃蓝科石化高新装备股份有限公司 [2]兰州大学西部灾害与环境力学教育部重点实验室土木工程与力学学院 [3]上海蓝滨石化设备有限责任公司

出　　处：《化工机械》2022年第3期423-431,共9页Chemical Engineering & Machinery

基　　金：甘肃省科技重大专项(19ZD2GA004)。

摘　　要：在对双流道人字形板式换热器的数值研究中,着重分析波纹倾角β、波纹间距λ、波纹高度H的变化对努塞尔数Nu和摩擦阻力系数f的影响,并用“面积质量因子j/f”衡量各结构参数变化的综合换热性能。在此基础上,得到波纹板随结构参数的变化在不同工况下的应力应变分布状况。结果表明:波纹倾角越小,面积质量因子越大,最大等效应力越小;波纹间距越大,面积质量因子越大,最大等效应力越小;波纹高度越小,面积质量因子越大,最大等效应力越大。In numerical simulation of the dual-channel herringbone plate heat exchanger,the influence of the variation of corrugation inclination angle(β),corrugation spacing(λ)and corrugation height(H)on both Nusselt number(Nu)and the frictional resistance coefficient(f)was mainly analyzed,including adopting the“area quality factor(j/f)”to evaluate the comprehensive heat exchange performance of each structural parameter.On this basis,both stress and strain distribution of the corrugated plate under different working conditions was obtained.The results show that,the smaller corrugation angle brings about larger area quality factor and smaller maximum equivalent stress;the larger corrugation spacing incurs larger area quality factor and smaller maximum equivalent stress;the smaller corrugation height contributes greater area quality factor and maximum equivalent stress.

关 键 词：板式换热器 波纹板 数值模拟 流-固耦合 面积质量因子 

分 类 号：TQ051.5[化学工程]