鼓泡破泡一体化高效精馏塔盘流动特性与CFD模拟

doi:10.11949/j.issn.0438-1157.20170318

化工学报 ›› 2017, Vol. 68 ›› Issue (12): 4633-4640.DOI: 10.11949/j.issn.0438-1157.20170318

鼓泡破泡一体化高效精馏塔盘流动特性与CFD模拟

陈光辉, 祝华腾, 郭秀玲, 王伟文, 李建隆

青岛科技大学化工学院, 山东青岛 266042

收稿日期:2017-03-29 修回日期:2017-08-29 出版日期:2017-12-05 发布日期:2017-12-05
通讯作者: 李建隆
基金资助:
国家自然科学基金项目（21276123）；青岛市科技成果转化计划—科技惠民专项项目（16-6-2-50-nsh）；山东省高等学校科技计划一般项目A类（J17KA107）。

Flow characteristics and CFD simulation on a high-efficiency sieve tray with bubble crusher

CHEN Guanghui, ZHU Huateng, GUO Xiuling, WANG Weiwen, LI Jianlong

College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China

Received:2017-03-29 Revised:2017-08-29 Online:2017-12-05 Published:2017-12-05
Supported by:
supported by the National Natural Science Foundation of China (21276123), the Conversion Program of Scientific and Technological Achievements in Qingdao-the Special People-benefit Project (16-6-2-50-nsh) and the Shandong Provincial Higher Education Science and Technology Program General Project Class A (J17KA107).

摘要/Abstract

摘要：

就痕量精馏中塔板传质效率低、需强化气液传质的问题，研究者提出了新型鼓泡破泡一体化高效精馏塔盘，通过在筛板上泡沫层高度范围内设置一层破泡装置，打破大气泡，减小气泡体积，强制界面进行更新，从而提高传质效率。采用双欧拉模型分别对鼓泡破泡一体化塔盘和筛板进行了气液流场的数值模拟，并对模型进行了验证。对比两种塔板的计算结果可以看出：在相同操作条件下，破泡装置将大气泡破裂成无数小气泡，使高气含率区域面积较普通筛板进一步增大，且气含率梯度变化更均匀；增加破泡装置后，在相同气速条件下气泡上升速度下降，气体在液层中的滞留时间延长，使鼓泡层高度增加，可显著提高传质效率，且降低了气体雾沫夹带量；破泡装置还明显改善了气相的纵向分布，气含率由塔板底部向上逐渐增大且存在明显分界；破泡装置附近湍动较剧烈，气泡破碎喷出的气体会进一步撕裂液膜，气体破碎作用会抑制气泡聚并，促进界面的快速更新更有利于传质过程的进行。研究结果可对工业塔板设计和优化提供指导。

关键词: 数值模拟, 气泡, 筛板塔, 气液两相流, 气含率

Abstract:

A high-efficiency sieve tray with bubble crusher was proposed. A layer of bubble crusher device was added in the height range of the foam layer on the sieve tray. The device could decrease the volume of the bubble and force the interphase to renovate, improve mass-transfer efficiency of trays in the trace distillation, and strengthen the gas-liquid mass transfer. The numerical simulation of gas-liquid two-phase flow field is carried out on the micro-bubble tray and sieve tray by Euler-Euler two fluid model, which was verified by test. The results showed that the bubble crusher device can effectively break the large bubbles, which made the gas distribution in those regions characterized by the small fraction of gas volume and evident back-mixing phenomenon more uniform, the regional area with large bubble content larger, and the gas hold-up distribution was gradient. The bubble crusher device in the foam layer can increase the interfacial area for vapour-liquid contact and residence time, improve the mass transfer efficiency and reduce the gas entrainment. The turbulence intensity near the bubble crusher device was high. The gas sprayed while large bubbles broken will further tear the liquid layer and increase the height of the foam layer, and bubble coalescence was restrained. The quick interphase renovation could enhance mass transfer process. The results can provide guidance for the design and optimization of industrial trays.

Key words: numerical simulation, bubble, sieve plate tower, gas-liquid two-phase flow, gas holdup

中图分类号:

TQ053.5

陈光辉, 祝华腾, 郭秀玲, 王伟文, 李建隆. 鼓泡破泡一体化高效精馏塔盘流动特性与CFD模拟[J]. 化工学报, 2017, 68(12): 4633-4640.

CHEN Guanghui, ZHU Huateng, GUO Xiuling, WANG Weiwen, LI Jianlong. Flow characteristics and CFD simulation on a high-efficiency sieve tray with bubble crusher[J]. CIESC Journal, 2017, 68(12): 4633-4640.

参考文献 25

[1]	FRYBACK M G, HUFNAGEL J A. Distillation-equipment design[J]. Industrial & Engineering Chemistry, 1960, 52(8):654-661.
[2]	姚克俭, 章渊昶, 王良华, 等. 新型高效大通量DJ系列塔板的研究与工业应用[J]. 化工进展, 2003, 22(3):228-232. YAO K J, ZHANG Y C, WANG L H, et al. Research and applications of high efficiency and high capacity DJ series tray[J]. Chemical Industry and Engineering Progress, 2003, 22(3):228-232.
[3]	付有成, 王崇智. 板式塔精馏技术进展[J]. 石化技术与应用, 2000, 18(4):231-236. FU Y C, WANG C Z. Progress in rectification technology of tray column[J]. Petrochemical Technology & Application, 2000, 18(4):231-236.
[4]	王少锋, 项曙光. 浮阀塔板最新应用研究进展[J]. 化工进展, 2014, 33(7):1677-1683. WANG S F, XIANG S G. Application and research progress of valve trays[J]. Chemical Industry and Engineering Progress, 2014, 33(7):1677-1683.
[5]	路秀林, 刘秀囡, 赵培. 导向浮阀塔板:91215110.2[P]. 1991-02-02. LU X L, LIU X N, ZHAO P. Guided float valve tray:91215110.2[P]. 1991-02-02.
[6]	赵景芳, 段道顺, 赵朝成. HTV船型浮阀塔板的流体力学及传质性能研究[J]. 中国石油大学学报(自然科学版), 1988, (1):93-100. ZHAO J F, DUAN D S, ZHAO Z C. A study on hydrodynamics and mass transfer of HTV-ship valve tray[J]. Journal of China University of Petroleum (Natural Science Edition), 1988, (1):93-100.
[7]	CONG H F, LI X G, LI Z J, et al. Combination of spiral nozzle and column tray leading to a new direction on the distillation equipment in novation[J]. Separation and Purification Technology, 2016, 158(28):293-301.
[8]	杜冬云, 方云进, 肖博文. 新型垂直筛板塔研究的进展[J]. 石油化工, 1998, 27(5):374-378. DU D Y, FANG Y J, XIAO B W. Research progress of new type of vertical sieve plate tower[J]. Petrochemical Technology, 1998, 27(5):374-378.
[9]	吕建华, 刘继东. 立体传质塔板CTST技术及其在炼油装置中的应用[J]. 化工进展, 2006, 25(s1):13-16. LÜ J H, LIU J D. Technical research of the combined trapezoid spray tray (CTST) and application in the oil refining[J]. Chemical Industry and Engineering Progress, 2006, 25(s1):13-16.
[10]	杨宏喜. 一种新型浮阀塔板传质性能的研究[D]. 上海:华东理工大学, 2012. YANG H X. Research of mass transfer efficiency for a new floating value tray[D]. Shanghai:East China University of Science and Technology, 2012.
[11]	李鑫钢, 刘霞, 高鑫, 等. 新型泡沫碳化硅塔板的流体力学及传质性能[J]. 天津大学学报(自然科学与工程技术版), 2014, 47(2):155-162. LI X G, LIU X, GAO X, et al. Hydrodynamics behavior and mass transfer performance of novel SiC foam trays[J]. Journal of Tianjin University(Science and Technology), 2014, 47(2):155-162.
[12]	GAO X, LI X G, LIU X, et al.A novel potential application of SiC ceramic foam material to distillation:foam monolithic tray[J]. Chemical Engineering Science, 2015, 135:489-500.
[13]	王伟文, 陈光辉, 段继海, 等. 一种微气泡塔盘气液传质塔板:201521107453.0[P]. 2016-08-10. WANG W W, CHEN G H, DUAN J H, et al. A micro bubble tray gas-liquid mass transfer plate:201521107453.0[P]. 2016-08-10.
[14]	李苏雅. 精密精馏气液传质机理及强化方法研究[D]. 青岛:青岛科技大学, 2012. LI S Y. Research of gas-liquid mass transfer mechanism and strengthening method in precise distillation[D]. Qingdao:Qingdao University of Science and Technology, 2012.
[15]	KRISHNA R, VAN BATEN J M. Modeling sieve tray hydraulics using computational fluid dynamics[J]. Chemical Engineering Research & Design, 2003, 81(1):27-38.
[16]	刘江琳, 张杰旭, 纪利俊, 等. 组合导向浮阀塔板的CFD模拟及反向流分析[J]. 化工学报, 2016, 67(5):1701-1709. LIU J L, ZHANG J X, JI L J, et al. CFD simulation and backflow analysis of combined directed valve tray[J]. CIESC Journal, 2016, 67(5):1701-1709.
[17]	JIANG S, GAO H, SUN J S, et al. Modeling fixed triangular valve tray hydraulics using computational fluid dynamics[J]. Chemical Engineering &Processing Process Intensification, 2012, 52(2):74-84.
[18]	LI X G, LIU D X, XU S M, et al. CFD simulations of hydrodynamics of valve tray[J]. Chemical Engineering & Processing Process Intensification, 2009, 48(1):145-151.
[19]	SHERWOOD T K, PIGFORD R L, WILKE C R. Mass Transfer[M]. Beijing:Chemical Industry Press, 1988:267.
[20]	GETYE G, NANDAKUMAR K, CHUANG K T. CFD modeling of flow patterns and hydraulics of commercial-scale sieve tray[J]. AIChE J., 2003, 49(4):910-925.
[21]	张朦, 张海涛, 张杰旭, 等. 组合导向浮阀塔板多相流的数值模拟[J]. 化学反应工程与工艺, 2015, 31(2):106-114. ZHANG M, ZHANG H T, ZHANG J X, et al. Numerical simulation of multiphase flow in combined guided valve tray of distillation column[J]. Chemical Reaction Engineering and Technology, 2015, 31(2):106-114.
[22]	WANG W W, LI S Y, LI J L. Experimental determination of bubble size distributions in laboratory scale sieve tray with mesh[J]. Industrial & Engineering Chemistry Research, 2012, 51(20):7067-7072.
[23]	KRISHNA R. CFD simulations of sieve tray hydrodynamics[J]. Chem. Eng. Res. Des., 1999, 77:639-646.
[24]	VAN BATEN J M. Modeling sieve tray hydraulics using computational fluid dynamics[J]. Chem. Eng. J., 2000, 77(3):143-151.
[25]	GETYE G, NANDAKUMAR K, CHUANG K T. CFD modeling of flow patterns and hydraulics of commercial-scale sieve tray[J]. AIChE J., 2003, 49(4):910-925.

鼓泡破泡一体化高效精馏塔盘流动特性与CFD模拟

Flow characteristics and CFD simulation on a high-efficiency sieve tray with bubble crusher

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