Numerical Simulation Study of the Effect of Outlet on the Axial Vortex Separator

IF 17.7 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-07-03 DOI:10.47176/jafm.17.9.2461

H. Lou, †. X.Zhang, X. Liu, Y. Wang, R. Liao

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Abstract

This study utilizes numerical simulations and dimensional analysis to investigate the impact of the two-phase outlet on flow field characteristics and separation efficiency of the separator. The study revealed a boundary layer separation at the water outlet, which was subsequently addressed to reduce energy losses in the separator. Dimensional analysis considered the influences of operational, structural, and physical parameters on the separator's performance. With other structural parameters held constant, separation efficiency is directly proportional to the ratio of inlet and oil-outlet diameter. Additionally, the separation efficiency is also associated with Re and the ratio of the inlet to the water-outlet diameter. When the diameter of the water outlet is constant, the axial vortex separator achieves optimal separation when the ratio of inlet and water-outlet diameter is 0.563, with a maximum separation efficiency of 97.00%. The optimal separation efficiency is reached at Re=22,908 under various operational conditions. Separation efficiency increases with water content, peaking at an inlet water content of 0.9 across different structural parameters. Separation efficiency shows an increase followed by a decrease with the rise in inlet flow rate(vi), achieving the best performance at vi=3m/s for the different separator structures studied.

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出口对轴向涡流分离器影响的数值模拟研究

本研究利用数值模拟和尺寸分析来研究两相出口对分离器流场特性和分离效率的影响。研究发现，水出口处存在边界层分离现象，随后解决了这一问题，以减少分离器中的能量损失。尺寸分析考虑了操作、结构和物理参数对分离器性能的影响。在其他结构参数保持不变的情况下，分离效率与进油口和出油口直径之比成正比。此外，分离效率还与 Re 值和入口与出水口直径之比有关。当出水口直径不变时，当进水口与出水口直径之比为 0.563 时，轴向漩涡分离器可达到最佳分离效果，最大分离效率为 97.00%。在不同的运行条件下，Re=22,908 时可达到最佳分离效率。分离效率随含水量的增加而增加，在不同的结构参数下，在入口含水量为 0.9 时达到峰值。分离效率随入口流速（vi）的增加而增加，随后降低，在 vi=3m/s 时，所研究的不同分离器结构达到最佳性能。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.

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