石油化工2024，Vol.53Issue(5)：670-677,8.DOI:10.3969/j.issn.1000-8144.2024.05.007
穿孔对穿孔型Kenics静态混合器混合性能的影响
Effect of perforation on mixing performance of perforated Kenics static mixer
摘要
Abstract
In order to improve the mixing effect of the traditional Kenics static mixer,a perforated Kenics static mixer was designed by introducing a perforated structure into the traditional helical insert belt structure.The coefficient of concentration variation(COV)was used to evaluate the effects of inner diameter of perforation(d),spacing of perforation(S),and length-to-diameter ratio of mixed elements(Ar)on the mixing performance of the perforated static mixer.The simulation results show that the set perforated structure can significantly change the flow state of the fluid and produce accelerated flow in the perforation area,thus improving the mixing performance of the mixer.With the increase in d,the convection and exchange between the fluids are gradually enhanced,and the mixing effect is gradually strengthened.However,with the continuous increase in d,the spiral channel inside the mixer is destroyed,and the mixing effect is weakened.Only changing S has no obvious effect on the mixing effect.For the mixer of the same length,the decrease in Ar leads to more mixed components,enhanced torsion and shear effect between liquids,and better mixing effect of the mixer.关键词
计算流体力学/静态混合器/穿孔结构/混合性能Key words
computational fluid dynamics/static mixer/perforated structure/mixing performance分类
化学化工引用本文复制引用
唐洋,谢磊,朱舒帝,徐嘉庆,向上..穿孔对穿孔型Kenics静态混合器混合性能的影响[J].石油化工,2024,53(5):670-677,8.基金项目
国家自然科学基金项目(52004235) （52004235）
国家重点研发计划项目(2021YFC2800903) （2021YFC2800903）
中国博士后科学基金资助项目(2020M 683359) （2020M 683359）
四川省科技计划资助项目(2020YJ0152). （2020YJ0152）
