微通道内不同挡板结构液液混合的数值模拟
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摘要
微通道内的流场规律是微反应器内部结构设计的基础,它对液液非均相的混合效果起决定作用。运用流体力学软件(FLUENT)对具有不同挡板结构的微通道内的流场进行数值模拟,分析微通道中流场的流动特点。通过对液液非均相的混合过程中的非定常计算,得到了不同挡板结构与混合时间及压降之间的关系。此方法不仅可用于优化微通道内部结构设计,同时也能为其他类型混合设备的优化设计提供了一定的理论参考。
The flow field law in the microchannel is the basis of the internal structure design of the microreactor, which plays a decisive role in the mixing effect of liquid-liquid heterogeneity. The flow field in microchannels with different baffle structures was numerically simulated using fluid mechanics software(FLUENT) to analyze the flow characteristics of the flow field in the microchannel. Through the unsteady calculation of the heterogeneous mixing of liquid and liquid, the relationship between different baffle structures and mixing time and pressure drop is obtained. This method can not only be used to optimize the internal structure design of microchannels, but also provide a theoretical reference for the optimization design of other types of hybrid equipment.
The flow field law in the microchannel is the basis of the internal structure design of the microreactor, which plays a decisive role in the mixing effect of liquid-liquid heterogeneity. The flow field in microchannels with different baffle structures was numerically simulated using fluid mechanics software(FLUENT) to analyze the flow characteristics of the flow field in the microchannel. Through the unsteady calculation of the heterogeneous mixing of liquid and liquid, the relationship between different baffle structures and mixing time and pressure drop is obtained. This method can not only be used to optimize the internal structure design of microchannels, but also provide a theoretical reference for the optimization design of other types of hybrid equipment.
引文
1张永芳,高勇,郝惠娣.微通道混合反应器内部流场的数值模拟[C].第五届全国化工年会论文集.西北大学,2008:1-6.
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9严生虎,陈代祥,沈卫,沈介发,马兵,刘建武,张跃.微通道反应器中苄亚甲基二氯水解制苯甲醛连续流工艺[J].化工进展,2013,32(02):299-302+339.
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13李进良,李承曦,胡仁喜等编著.精通FLUENT6.3流场分析.北京:化学工业出版社,2009,9.
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16 Nievesremacha M J,Yang L,Jensen K F.OpenFOAMComputational Fluid Dynamic Simulations of Two-Phase Flow and Mass Transfer in an Advanced-Flow Reactor[J].Industrial&Engineering Chemistry Research,2015,54(26):6649-6659.
17张莹.微通道内液-液传质与相分离模拟研究[D].天津大学,2015.
18丁祖荣.流体力学[M].北京:高等教育出版社,2003,12.
19 Nievesremacha M J,Kulkarni A A,Jensen K F.Gas-Liquid Flow and Mass Transfer in an Advanced-Flow Reactor[J].Industrial&Engineering Chemistry Research,2013,52(26):8996-9010.
20 María JoséNieves-Remacha,Kulkarni A A,Jensen K F.Hydrodynamics of Liquid-Liquid Dispersion in an Advanced-Flow Reactor[J].Industrial&Engineering Chemistry Research,2012,51(50):16251-16262.
21王林.基于简化模型的T型微反应器设计[J].计算机与应用化学,2012,29(7):859-862.
22杨雪芳,林莹.挡板结构对微混合器内流动与混合的影响[J].上海应用技术学院学报:自然科学版,2016,16(4):338-343.
23董利君.微通道反应器数学模型的理论及数值研究[D].2016.
2陈光文.微化工技术研究进展[J].现代化工,2007,27(10):8-13.
3张春梅,陈豪杰,刘建.不同元件长径比对液液静态混合的影响[J].当代化工,2017(11):2277-2280.
4 Hessel V,L?we H,Stange T.Micro chemical processing at IMM from pioneering work to customer-specific services[J].Lab on A Chip,2002,2(1):14N.
5刘冠颖,方玉诚,郭辉进,等.微反应器发展概况[J].当代化工,2010,39(3):315-318.
6 Watts P,Haswell SJ.The application of micro reactors for small scale organic synthesis[J].Chemical Engineering﹠Technology,2005,28(3):290-301.
7 Borovinskaya E S,Reshetilovskii V P.Microstructural reactors:Concept,development and application[J].Russian Journal of Applied Chemistry,2008,81(12):2211-2231.
8唐静.微通道内液滴流的形成及传质过程研究[D].天津大学,2013.
9严生虎,陈代祥,沈卫,沈介发,马兵,刘建武,张跃.微通道反应器中苄亚甲基二氯水解制苯甲醛连续流工艺[J].化工进展,2013,32(02):299-302+339.
10严生虎,沈卫,张跃,刘建武,沈介发.微通道反应器内乙苯连续氧化反应工艺研究[J].现代化工,2012,32(04):94-97.
11张跃,张勇超,严生虎,刘建武,沈介发,陈代祥,沈禹凡.微通道反应器中甲苯连续液相氧化工艺研究[J].现代化工,2018,38(05):85-89.
12严生虎,张沫,张跃,刘建武,沈介发.毫米通道内氯苯-水非均相体系混合效果研究[J].化学工程,2012,40(06):47-50+55.
13李进良,李承曦,胡仁喜等编著.精通FLUENT6.3流场分析.北京:化学工业出版社,2009,9.
14韩占忠,王敬,兰小平编.FLUENT:流体工程仿真计算实例与应用.北京:北京理工大学出版社,2010,4.
15钱婷婷,孔智文.双管板换热器的设计和制造[J].化工装备技术,2006,3(06):41-44.
16 Nievesremacha M J,Yang L,Jensen K F.OpenFOAMComputational Fluid Dynamic Simulations of Two-Phase Flow and Mass Transfer in an Advanced-Flow Reactor[J].Industrial&Engineering Chemistry Research,2015,54(26):6649-6659.
17张莹.微通道内液-液传质与相分离模拟研究[D].天津大学,2015.
18丁祖荣.流体力学[M].北京:高等教育出版社,2003,12.
19 Nievesremacha M J,Kulkarni A A,Jensen K F.Gas-Liquid Flow and Mass Transfer in an Advanced-Flow Reactor[J].Industrial&Engineering Chemistry Research,2013,52(26):8996-9010.
20 María JoséNieves-Remacha,Kulkarni A A,Jensen K F.Hydrodynamics of Liquid-Liquid Dispersion in an Advanced-Flow Reactor[J].Industrial&Engineering Chemistry Research,2012,51(50):16251-16262.
21王林.基于简化模型的T型微反应器设计[J].计算机与应用化学,2012,29(7):859-862.
22杨雪芳,林莹.挡板结构对微混合器内流动与混合的影响[J].上海应用技术学院学报:自然科学版,2016,16(4):338-343.
23董利君.微通道反应器数学模型的理论及数值研究[D].2016.