气泡直径对旋流器气液分离的影响

发布时间：2018-01-14 16:38

本文关键词：气泡直径对旋流器气液分离的影响　出处：《中国科技论文》2016年17期 　论文类型：期刊论文

【摘要】：为了研究气液旋流器内气泡直径对分离和流场的影响,以内锥式气液旋流器为原型,分别设计了3种不同内锥结构的旋流器,建立了网格模型并做了网格无关性验证,网格质量检查结果良好。针对气液混合介质中的气泡单一直径和3种不同直径的组合,应用FLUENT软件,模拟分析4种结构旋流器的切向速度和分离效果。研究表明:分离单一直径气泡时,随着直径的增大,溢流口气相体积分数先增加后减少;分离多种直径气泡混合介质时,随着直径的增大,溢流口气相体积逐渐减少;改变内锥形状可以改善分离效果,分离某一直径气泡的相对最优结构用于分离另1种直径气泡未必是相对最优结构;分离不同直径气泡的相对最优结构可能并不相同。
[Abstract]:In order to study the effect of bubble diameter on separation and flow field in gas-liquid hydrocyclone, three kinds of inner cone hydrocyclone with different inner conical structure were designed. The mesh model is established and the mesh independence is verified. The results of mesh quality check are good. FLUENT software is applied to the combination of single diameter and three different diameters of bubbles in gas-liquid mixed medium. The tangential velocity and separation effect of four kinds of hydrocyclone are simulated and analyzed. The results show that the gas phase volume fraction of overflow increases first and then decreases with the increase of diameter when the single diameter bubble is separated. The gas phase volume of the overflow decreases with the increase of the diameter when the mixture medium is separated from the bubble with various diameters. The separation effect can be improved by changing the shape of the inner cone, and the relative optimum structure of the separation of one diameter bubble is not necessarily the relative optimal structure for the separation of another kind of diameter bubble. The relative optimal structure of bubbles with different diameters may not be the same.
【作者单位】：东北石油大学机械科学与工程学院;
【基金】：高等学校博士学科点专项科研基金资助项目(20132322110002) 国家高技术研究发展计划(863计划)资助项目(2012AA061303)
【分类号】：TQ028
【正文快照】： 油田伴生气是从油井中产出的天然气,可以用于化工原料或燃料,对油田采出液中的伴生气进行分离可以减少伴生气燃烧排放产生的空气污染,提高能源利用率[1-3]。常见的气液分离主要包括旋流分离、重力分离和惯性分离。惯性分离的原理是带有雾滴的气体急速转向或撞向折流板,由于气

【相似文献】