刘帅,王建军,郑官军,王泽龙

• 1:中国石油大学(华东) 新能源学院，山东 青岛 266580

摘要(Abstract)：

为探究旋流管气液分离过程，采用激光粒度分析仪和高速摄影技术对其内部液相动态行为进行可视化研究，结果表明：在具有结构参数梯度的两级导叶协同作用下可实现对不同粒径液滴的分级分离；壁面液膜形态与入口气速密切相关，在低入口气速下，在壁面无法形成环状液膜，随着入口气速在合理范围内不断增加，形成的环状液膜沿壁面逆流排出，完成逆流排液方式的气液分离过程；当入口气速高于17.5 m·s^-1时，形成的液膜以“螺旋液带”的形式螺旋上升至排液侧缝，完成顺流排液方式的气液分离过程；在旋流场中进行的有效气液分离动态过程可理解为液相“捕集—破碎—再捕集—再破碎”的良性循环机制，且“子液滴群”和“初始液滴群”共同制约分离效率。

关键词(KeyWords)： 液滴;液膜;可视化;粒径分布;旋流管

Abstract:

Keywords:

基金项目(Foundation): 中国石油大学（华东）研究生创新工程资助项目（YCX2018041）。

作者(Author): 刘帅,王建军,郑官军,王泽龙

DOI: 10.3969/j.issn.1003-9015.2019.00.007

参考文献(References)：

• [1] 刘帅, 王建军, 郭颖, 等. 多管直流式旋流分离器的性能实验与结构优化[J]. 高校化学工程学报, 2018, 32(5):66-77. LIU S, WANG J J, GUO Y, et al. Performance and structure optimization of a multi-tube axial flow cyclone separator[J]. Journal of Chemical Engineering of Chinese Universities, 2018, 32(5):66-77.
  [2] JACOBSSON S, AUSTRHEIM T H, OFFMANN A C. Experimental and computational fluid dynamics investigation of the flow in and around once-through swirl tubes[J]. Industrial & Engineering Chemistry Research, 2006, 45(19):6525-6530.
  [3] 刘帅, 王建军, 于定嵘, 等. 管束式气液分离器分离性能的数值研究[C]//中国工程热物理学会多相流学术会议. 北京:2018. LIU S, WANG J J, YU D R, et al, Numerical research on separation performance of tube gas-liquid separator[C]//Academic Conference on Multiphase Flow of the Chinese Society of Engineering Thermophysics. Beijing:[s.n.], 2018.
  [4] 刘帅, 王建军, 潘静娜, 等. 管束式气液分离器气液两相流场的数值研究[C]//中国颗粒学会第十届学术年会暨海峡两岸颗粒技术研讨会. 沈阳:2018. LIU S, WANG J J, PAN J N, et al. Numerical research on gas-liquid two-phase flow field of tube gas-liquid separator[C]//The Tenth Annual Academic Conference of China Granular Society and Papers Collection of the Seminar on Particle Technology across the Taiwan Strait. Shenyang:[s.n.], 2018.
  [5] LUIS D P G, TRUJILLO J, BLANCO W. Geometric design optimization of a prototype axial gas-liquid cyclonic separator[M]//Switzerland:Engineering and the Environment. Springer International Publishing, 2014.
  [6] FABIAN P, HENNESSEY P, NEUMAN M, et al. Demystifying the selection of mist eliminators[J]. Chemical Engineering Journal, 1993, 106(11):148-156.
  [7] SVRCEK W Y, MONNERY W D. Design two-phase separators within the right limits[J]. Chemical Engineering Progress, 1993, 89(10):53-60.
  [8] CAPPS R W. Properly specify wire-mesh mist eliminators[J]. Chemical Engineering Progress, 1994, 49(90):49-55.
  [9] ZIEBOLD S. A. Demystifying mist eliminator selection[J]. Chemical Engineering Journal, 2000, 94(107):94-102.
  [10] BRUNAZZI E, PAGLIANTI A, TALAMELLI A. Simplified design of axial-flow cyclone mist eliminators[J]. AIChE Journal, 2003, 49(1):41-51.
  [11] AUSTRHEIM T, GJERTSEN L H, HOFFMANN A C. Re-entrainment correlations for demisting cyclones acting at elevated pressures on a range of fluids[J]. Energy & Fuels, 2007, 21(5):2969-2976.
  [12] AUSTEHEIM T, GJERTSEN L H, HOFFMANN A C. Experimental investigation of the performance of a large-scale scrubber operating at elevated pressure on live natural gas[J]. Fuel, 2008, 87(7):1281-1288.
  [13] AUSTEHEIM T, GJERTSEN L H, HOFFMANN A C. An experimental investigation of scrubber internals at conditions of low pressure[J]. Chemical Engineering Journal, 2008, 138(1):95-102.
  [14] AUSTEHEIM T, GJERTSEN L H, HOFFMANN A C. Is the Souders-Brown equation sufficient for scrubber design? An experimental investigation at elevated pressure with hydrocarbon fluids[J]. Chemical Engineering Science, 2007, 62(21):5715-5727.
  [15] 欧阳璇. 旋流分离器内液滴聚并与破碎的数值研究[D]. 青岛:中国石油大学(华东), 2018. OUYANG X. Numerical investigation of the droplet coalescence and breakup behavior in cyclone separator[D]. Qingdao:China University of Petroleum (East China), 2018.
  [16] SCHUTZ S, GORBACH G, PIESCHE M. Modeling fluid behavior and droplet interactions during liquid-liquid separation in hydrocyclones[J]. Chemical Engineering Science, 2009, 64(18):3935-3952.
  [17] JAMES P W, AZZOPARDI B J, WANG Y, et al. A model for liquid film flow and separation in a wave-plate mist eliminator[J]. Chemical Engineering Research & Design, 2005, 83(5):469-477.
  [18] GALLETTI C, BRUNAZZI E, TOGNOTTI L. A numerical model for gas flow and droplet motion in wave-plate mist eliminators with drainage channels[J]. Chemical Engineering Science, 2008, 63(23):5639-5652.
  [19] LI J, HUANG S Y, WANG X M. Numerical study of steam-water separators with wave-type vanes[J]. Chinese Journal of Chemical Engineering:English Edition, 2007, 15(4):492-498.
  [20] AZZOPARDI B J, SANAULLAH K S. Re-entrainment in wave-plate mist eliminators[J]. Chemical Engineering Science, 2002, 57(17):3557-3563.
  [21] WANG L, MARCHISIO D L, VIGIL R D, et al. CFD simulation of aggregation and breakage processes in laminar Taylor-Couette flow[J]. Journal of Colloid & Interface Science, 2005, 282(2):380-396.
  [22] 郝雅洁, 刘嘉宇, 袁竹林, 等. 除雾器内雾滴运动特性与除雾效率[J]. 化工学报, 2014, 65(12):4669-4677. HAO Y J, LIU J Y, YUAN Z L, et al. Movement characteristics of droplets and demisting efficiency of mist eliminator[J]. CIESC Journal, 2014, 65(12):4669-4677.
  [23] WU X C, ZHAO H F, ZHANG Y X, et al. Measurement of slurry droplets in coal-fired flue gas after WFGD[J]. Environmental Geochemistry & Health, 2015, 37(5):915-929.
  [24] TSOURIS C, TAVLARIDES L L. Breakage and coalescence models for drops in turbulent dispersions[J]. AIChE Journal, 1994, 40(3):395-406.
  [25] KATAOKA I, ISHII M, MISHIMA K. Generation and size distribution of droplet in annular two-phase flow[J]. Journal of Fluids Engineering, 1983, 105(2):230-238.
  [26] ISHII M, GROLMES M A. Inception criteria for droplet entrainment in two-phase concurrent film flow[J]. AIChE Journal, 1975, 21(2):308-318.
  [27] ŠIKALO Š, GANIC E N. Phenomena of droplet-surface interactions[J]. Experimental Thermal & Fluid Science, 2007, 31(2):97-110.
  [28] JΦSANG A I. Numerical and experimental studies of droplet-gas flow[D]. Trondheim:Norwegian University of Science and Technology, 2002.
  [29] WAL R L V, BERGER G M, MOZES S D. Droplets splashing upon films of the same fluid of various depths[J]. Experiments in Fluids, 2006, 40(1):33-52.