轴流泵式混合室内水力学特征的数值模拟

doi:10.11949/0438-1157.20231047

化工学报 ›› 2024, Vol. 75 ›› Issue (3): 815-822.DOI: 10.11949/0438-1157.20231047

轴流泵式混合室内水力学特征的数值模拟

谷世良¹^,²(), 谭博仁¹, 程全中¹^,², 姚玮洁³, 董志鹏⁴, 许峰⁴, 王勇¹^,²()

^1.中国科学院过程工程研究所，北京 100190
^2.中国科学院大学，北京 101400
^3.智汇（天津）工程设计院有限公司，天津 300450
^4.河北兰升生物科技有限公司，河北石家庄 052263

收稿日期:2023-10-09 修回日期:2024-02-18 出版日期:2024-03-25 发布日期:2024-05-11
通讯作者: 王勇
作者简介:谷世良（1998—），男，硕士研究生，gushiliang723@163.com
基金资助:
国家自然科学基金重大研究计划集成项目(92262305);国家自然科学基金面上项目(22178350);中国科学院稳定支持基础研究领域青年团队计划项目(YSBR-038);国家重点研发计划项目(2023YFC2908100);河北省重大科技成果转化专项(22293601Z)

Numerical simulation of hydraulic characteristics in axial flow pump type mixer

Shiliang GU¹^,²(), Boren TAN¹, Quanzhong CHENG¹^,², Weijie YAO³, Zhipeng DONG⁴, Feng XU⁴, Yong WANG¹^,²()

^1.Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
^2.University of Chinese Academy of Sciences, Beijing 101400, China
^3.Zhihui ( Tianjin) Engineering Co. , Ltd. ，Tianjin 300450, China
^4.Hebei Lansheng Biotech, Shijiazhuang 052263, Hebei, China

Received:2023-10-09 Revised:2024-02-18 Online:2024-03-25 Published:2024-05-11
Contact: Yong WANG

摘要/Abstract

摘要：

混合澄清槽是重要的萃取分离设备，采用计算流体力学（CFD）方法研究了一种新型轴流泵式混合澄清槽内流体流动与剪切力，确定了搅拌桨型对混合室内的平均剪切速率、剪切速率空间分布、剪切速率概率分布的影响，结果表明：与传统泵轮式混合室相比，轴流泵式混合室内锥形泵及双桨叶的搭配可以大幅提高混合室的抽吸力与剪切力，搭配六叶半闭式涡轮桨后抽吸力可提升87%，混合室平均剪切速率提升90%，同时轴流泵式混合室内剪切力的分布更加均匀。

关键词: 数值模拟, 计算流体力学, 轴流泵式混合室, 萃取

Abstract:

The mixing and clarifying tank is an important extraction and separation equipment. In this study, computational fluid dynamics (CFD) method was used to study the fluid flow and shear force in a new type of axial flow pump type mixer (AFPM). The impact of the impeller type on average shear rate, spatial distribution of shear rate, and probability distribution of shear rate in the mixing chamber was analyzed. The results demonstrate that the combination of the conical pump and double blade yields significantly improved suction and shear force compared to traditional mixers. Furthermore, the six-bladed semi-closed turbine (SBSCT) blade can increase suction force by 87% and average shear rate by 90%. The axial flow pump also provides a more evenly distributed shear force within the mixing chamber.

Key words: numerical simulation, computational fluid dynamics, axial flow pump type mixer, extraction

中图分类号:

TQ 051

谷世良, 谭博仁, 程全中, 姚玮洁, 董志鹏, 许峰, 王勇. 轴流泵式混合室内水力学特征的数值模拟[J]. 化工学报, 2024, 75(3): 815-822.

Shiliang GU, Boren TAN, Quanzhong CHENG, Weijie YAO, Zhipeng DONG, Feng XU, Yong WANG. Numerical simulation of hydraulic characteristics in axial flow pump type mixer[J]. CIESC Journal, 2024, 75(3): 815-822.

图/表 14

图1 轴流泵式混合室

Fig.1 Axial flow pumptype mixer

图2 搅拌桨几何结构

Fig.2 Geometry of the impeller

图3 各转速下混合室抽吸力

Fig.3 Suction pressure of mixer with different rotating speeds

图4 混合室几何结构

Fig.4 Geometry of mixer

图5 网格无关性结果

Fig.5 Comparison of simulation results for three different grids

表1 各混合室网格数

Table 1 Grid number of mixer with different structure

AFPM+Propeller	AFPM+SBSCT	TM+SBSCT
472658个	449610个	206706个

图6 剪切速率云图 (N=390 r/min，D=6 cm，x=0)

Fig.6 Contour of shear rates (N=390 r/min，D=6 cm，x=0)

图7 不同转速下混合室内平均剪切速率的变化

Fig.7 Average shear rates at different rotate speeds

图8 不同结构下的剪切速率概率分布 (N=390 r/min)

Fig.8 Probability distribution of shear rate for different structures (N=390 r/min)

表2 混合室内平均剪切速率比值

Table 2 The ratio of average shear rate of mixers

设备名称	平均剪切速率比值
AFPM+Propeller	4.22
AFPM+SBSCT	4.59
TM+SBSCT	10.07

图9 各转速下混合室抽吸力 (仿真结果)

Fig.9 Suction pressure of mixer with different rotating speeds (CFD result)

图10 不同搅拌结构下的压力云图

Fig.10 Contour of pressure of different agitation structure

图11 不同桨型和搅拌桨结构下的速度矢量图

Fig.11 Vector plots of velocities of different mixer and impellers

表3 混合室内平均湍动能

Table 3 Average turbulent kinetic energy in mixer

设备名称	平均湍动能/(10^-3 m²/s²)
AFPM+Propeller	5.56
AFPM+SBSCT	5.14
TM+SBSCT	2.56

参考文献 31

1	蓝敏乐, 谭博仁, 许东兵, 等. 管型混合澄清槽内的液-液两相流的数值模拟[J]. 化工学报, 2021, 72(4): 1965-1974.
	Lan M L, Tan B R, Xu D B, et al. Numerical simulation of liquid-liquid two-phase flow in tubular mixer-settler[J]. CIESC Journal, 2021, 72(4): 1965-1974.
2	Raji M, Abolghasemi H, Safdari J, et al. Hydrodynamic study of an emulsion liquid membrane containing carbon nanotube in a mixer-settler: mean size and size distribution of emulsion globules[J]. Chemical Engineering Research and Design, 2018, 139: 77-88.
3	Tang Q, Zhang J, Wu Y X, et al. An experimental study of immiscible liquid-liquid dispersions in a pump-mixer of mixer-settler[J]. Chinese Journal of Chemical Engineering, 2020, 28(1): 33-45.
4	Atanassova M. Solvent extraction chemistry in ionic liquids: an overview of F-ions[J]. Journal of Molecular Liquids, 2021, 343: 117530.
5	Kiezyk P R, MacKay D. Waste water treatment by solvent extraction[J]. The Canadian Journal of Chemical Engineering, 1971, 49(6): 747-752.
6	Li B B, Smith B, Hossain M M. Extraction of phenolics from citrus peels[J]. Separation and Purification Technology, 2006, 48(2): 182-188.
7	Lucchesi M E, Chemat F, Smadja J. Solvent-free microwave extraction: an innovative tool for rapid extraction of essential oil from aromatic herbs and spices[J]. The Journal of Microwave Power and Electromagnetic Energy, 2004, 39(3/4): 135-139.
8	Caballero-Casero N, Rubio S. Comprehensive supramolecular solvent-based sample treatment platform for evaluation of combined exposure to mixtures of bisphenols and derivatives by liquid chromatography-tandem mass spectrometry[J]. Analytica Chimica Acta, 2021, 1144: 14-25.
9	Manavalan B, Joshi J B, Pandey N K. Design modification in the stationary bowl of annular centrifugal extractors to handle adverse conditions[J]. Industrial & Engineering Chemistry Research, 2020, 59(25): 11757-11766.
10	范智, 白志山, 徐艳, 等. 离心萃取器转筒入口半径对筒内流场的影响[J]. 化工进展, 2015, 34(5): 1232-1235.
	Fan Z, Bai Z S, Xu Y, et al. Effects of centrifugal extractor cylinder inlet radius on the cylinder flow field[J]. Chemical Industry and Engineering Progress, 2015, 34(5): 1232-1235.
11	阮飞, 武茹明, 杨文成, 等. 不同结构稀土萃取槽传输性能对比研究[J]. 湿法冶金, 2019, 38(6): 501-504.
	Ruan F, Wu R M, Yang W C, et al. Comparative study of transport performance of rare earth extraction reactor with different structures[J]. Hydrometallurgy of China, 2019, 38(6): 501-504.
12	Xiang W, Liang S K, Zhou Z Y, et al. Lithium recovery from salt lake brine by counter-current extraction using tributyl phosphate/FeCl₃ in methyl isobutyl ketone[J]. Hydrometallurgy, 2017, 171: 27-32.
13	Liu G, Zhao Z W, Ghahreman A. Novel approaches for lithium extraction from salt-lake brines: a review[J]. Hydrometallurgy, 2019, 187: 81-100.
14	苏慧. 多组分协同溶剂萃取体系应用于高镁盐湖卤水提锂的研究[D]. 北京: 中国科学院大学, 2021.
	Su H. Study on extraction of lithium from high magnesium salt lake brine by multi-component synergistic solvent extraction system[D]. Beijing: University of Chinese Academy of Sciences, 2021.
15	Kopriwa N, Buchbender F, Ayesterán J, et al. A critical review of the application of drop-population balances for the design of solvent extraction columns (Ⅰ): Concept of solving drop-population balances and modelling breakage and coalescence[J]. Solvent Extraction and Ion Exchange, 2012, 30(7): 683-723.
16	Tan B R, Lan M L, Li L X, et al. Drop size correlation and population balance model for an agitated-pulsed solvent extraction column[J]. AIChE Journal, 2020, 66(8): e16279.
17	Lorenz M, Haverland H, Vogelphol A. Fluid dynamics of pulsed sieve plate extraction columns[J]. Chemical Engineering & Technology, 1990, 13(1): 411-422.
18	闫越飞, 王日杰, 杨晓霞. 不溶液-液分散在搅拌槽内的CFD模拟[J]. 化学工业与工程, 2018, 35(2): 70-79.
	Yan Y F, Wang R J, Yang X X. CFD simulation of immiscible liquid-liquid dispersion in a stirred tank[J]. Chemical Industry and Engineering, 2018, 35(2): 70-79.
19	倪志南, 武斌, 陈葵, 等. 液-液萃取过程中液滴分散特性的数值模拟[J]. 湿法冶金, 2018, 37(5): 402-406.
	Ni Z N, Wu B, Chen K, et al. Numerical simulation of droplet dispersion in liquid-liquid mixing chamber[J]. Hydrometallurgy of China, 2018, 37(5): 402-406.
20	Vandermeersch T, Gevers L, de Malsche W. A robust multistage mesoflow reactor for liquid-liquid extraction for the separation of Co/Ni with cyanex 272[J]. Separation and Purification Technology, 2016, 168: 32-38.
21	周雄军, 逄启寿, 王福辉. 稀土萃取混合槽的放大设计[J]. 湿法冶金, 2013, 32(6): 418-420.
	Zhou X J, Pang Q S, Wang F H. Amplification design of rare earth extraction mixing tank[J]. Hydrometallurgy of China, 2013, 32(6): 418-420.
22	Zou Y, Song W Y, Wang Y D, et al. A study on suction effect of impellers in a square pump-mix mixer[J]. Journal of Chemical Engineering of Japan, 2015, 48(5): 387-394.
23	Gu D Y, Liu Z H, Xie Z M, et al. Numerical simulation of solid-liquid suspension in a stirred tank with a dual punched rigid-flexible impeller[J]. Advanced Powder Technology, 2017, 28: 2723-2734.
24	Gu D Y, Liu Z H, Li J, et al. Intensification of chaotic mixing in a stirred tank with a punched rigid-flexible impeller and a chaotic motor[J]. Chemical Engineering and Processing: Process Intensification, 2017, 122: 1-9.
25	田阳, 李磊, 侯学锋, 等. 我国乏燃料后处理厂泵轮式扁平混合澄清槽的设计及应用[J]. 产业与科技论坛, 2021, 20(6): 29-31.
	Tian Y, Li L, Hou X F, et al. Design and application of pump-wheel flat mixing clarifier in spent fuel reprocessing plant in China[J]. Industrial & Science Tribune, 2021, 20(6): 29-31.
26	Thakur R K, Vial C, Nigam K D P, et al. Static mixers in the process industries—a review[J]. Chemical Engineering Research and Design, 2003, 81(7): 787-826.
27	姜志新. 湿法冶金分离工程[M]. 北京: 原子能出版社, 1993: 292-296.
	Jiang Z X. Hydrometallurgical Separation Engineering[M]. Beijing: Atomic Energy Press, 1993: 292-296.
28	Sonntag A A, Szanto I, Goodman D A. New developments in Krebs mixer-settler technology[J]. Mining, Metallurgy & Exploration, 1992, 9(1): 13-19.
29	Sonntag A A, Goodman D. Development and application of the KREBS solvent-extraction system[C]∥Proceedings of the IN SITU. New York: Marcel Dekker Inc., 1982.
30	Kohler K C, Sonntag A A. Applications of the Krebs solvent extraction system to copper hydrometallurgy [R]. London: Institution of Mining and Metallurgy, 1985.
31	Metzner A B, Otto R E. Agitation of non-Newtonian fluids[J]. AIChE Journal, 1957, 3(1): 3-10.

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轴流泵式混合室内水力学特征的数值模拟

Numerical simulation of hydraulic characteristics in axial flow pump type mixer

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