化工进展2017，Vol.36Issue(10)：3584-3589,6.DOI:10.16085/j.issn.1000-6613.2017-0209
倾斜折流栅式换热器壳程流体流动与传热特性
Research on fluid flow and heat transfer characteristics in shell side of inclined shutter baffle heat exchanger
摘要
Abstract
Based on the fluid flow characteristics of the shell-side of the sideling flow heat exchanger,a sideling flow heat exchanger with inclined shutter baffles was proposed.The numerical study of the conventional and inclined shutter baffles sideling flow heat exchangers was carried out with Fluent,a kind of CFD software,and the impacts of the modes the shutter baffle assembled and inclination angle on the fluid flow and heat transfer of sideling flow heat exchanger with inclined shutter baffles was analyzed.The results showed that the heat transfer coefficient and comprehensive performance of the inclined shutter baffle heat exchangers increase by 6.18％-6.47％ and 3.22％-3.59％ respectively,compared with the conventional sideling flow heat exchanger when the shutter baffles and strips were assembled concurrently.When the shutter baffles and strips were assembled concurrently,both heat transfer coefficient and comprehensive performance of the inclined shutter baffle heat exchangers with inclination angle of 70° reach the highest value with a relatively low shell side pressure drop.Compared with the heat exchanger with inclination angle of 60°,the heat transfer coefficient and comprehensive performance of the one with inclination angle of 70° increase by 2.84％-2.93％ and 7.07％-7.19％ respectively,and the shell-sided pressure drop decreases by 11.26％-11.52％.The results provide the theoretical and engineering application bases for the structure improvement and heat transfer enhancement of the sideling flow heat exchanger.关键词
流动/传热/数值模拟/倾斜折流栅/装配方式/倾斜角度Key words
flow/heat transfer/numerical simulation/inclined shutter baffle/assembly mode/inclination angle分类
能源科技引用本文复制引用
古新,秦晓柯,王永庆,张大波,刘敏珊..倾斜折流栅式换热器壳程流体流动与传热特性[J].化工进展,2017,36(10):3584-3589,6.基金项目
国家自然科学基金(21776263)及河南省高等学校重点科研项目(18A470001). （21776263）
