Oil-water separation in a cylindrical cyclone with vortex finder

doi:10.1063/5.0085029

IMECH-IR > 流固耦合系统力学重点实验室

	Oil-water separation in a cylindrical cyclone with vortex finder
	Zhang J(张健)1,2 ; He YT(何云腾)1 ; Liu S(刘硕)1,2; Xu JY(许晶禹)1,2
通讯作者	Zhang, Jian([email protected]) ; Xu, Jing-yu([email protected])
发表期刊	PHYSICS OF FLUIDS
	2022-03-01
卷号	34 期号:3 页码:11
ISSN	1070-6631
摘要	Cylindrical cyclones are always used in the petroleum industry to separate the oil-water two-phase mixtures or treatment the waste water. Here, we use dimensional analysis and multiphase flow numerical simulation to analyze the separation process in a cylindrical cyclone with a vortex finder to better understand the theory and characteristics of separation. In the dimensional analysis, we consider all structural, flow, and operating parameters. A multiphase mixture model is used to simulate oil-water two-phase flow and separation in a cylindrical cyclone. There is a vortex in the core of the cylinder, and its structure is influenced by the diameter of the overflow pipe, the inlet velocity, and the flow split ratio. However, the influence of these three factors on the equivalent diameter of the vortex core can be ignored. Moreover, the inlet velocity has little influence on the equivalent length of the vortex core. Therefore, the structure of the vortex core can be calculated from the diameter and flow split ratio of the up-outlet of the cylindrical cyclone. Oil-water separation increases as the diameter of the oil droplet increases. The separation efficiency of the cylindrical cyclone with vortex can reach 80% if the inlet dispersion droplet diameter is larger than 1 mm. The oil volume fractions in the up- and down-outlets decrease as the overflow split ratio increases. The flow split ratio is the only operating parameter to consider to obtain the best separation results for a cylindrical cyclone with a fixed inlet oil-water mixture. (C) 2022 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
DOI	10.1063/5.0085029
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000781046100004
关键词[WOS]	FLOW-FIELD ; PERFORMANCE ; INSTABILITY ; MOTION ; MODEL
WOS研究方向	Mechanics ; Physics
WOS类目	Mechanics ; Physics, Fluids & Plasmas
资助项目	National Natural Science Foundation of China[11972039] ; National Natural Science Foundation of China[51509235]
项目资助者	National Natural Science Foundation of China
论文分区	一类/力学重要期刊
力学所作者排名	1
RpAuthor	Zhang, Jian ; Xu, Jing-yu
引用统计	被引频次：16[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/88866
专题	流固耦合系统力学重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang J,He YT,Liu S,et al. Oil-water separation in a cylindrical cyclone with vortex finder[J]. PHYSICS OF FLUIDS,2022,34,3,:11.Rp_Au:Zhang, Jian, Xu, Jing-yu
APA	张健,何云腾,刘硕,&许晶禹.(2022).Oil-water separation in a cylindrical cyclone with vortex finder.PHYSICS OF FLUIDS,34(3),11.
MLA	张健,et al."Oil-water separation in a cylindrical cyclone with vortex finder".PHYSICS OF FLUIDS 34.3(2022):11.

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