分流比对旋流器影响的数值模拟与试验分析  

Numerical Simulation and Experimental Analysis of Influence of Split Ratio on Hydrocyclone

作　　者：刘冰[1] 赵振江 韦尧尧 薛建良[2] 杨文宇 Liu Bing;Zhao Zhenjiang;Wei Yaoyao;Xue Jianliang;Yang Wenyu(College of Mechanical and Electronic Engineering,Shandong University of Science and Technology,Qingdao 266590,China;College of Safety and Enviromental Engineering,Shandong University of Science and Technology,Qingdao 266590,China)

机构地区：[1]山东科技大学机械电子工程学院,山东青岛266590 [2]山东科技大学安全与环境工程学院,山东青岛266590

出　　处：《煤矿机械》2020年第11期26-29,共4页Coal Mine Machinery

基　　金：国家科技重大专项(2017ZX05064004-007);国家自然科学基金(51804183)。

摘　　要：基于计算流体动力学软件Fluent和相似参数准则的试验方法,开展不同分流比对旋流器空气柱、分离流场和分离效果影响规律的数值模拟及试验分析。研究结果表明:分流比小于8%时,限制了空气从底流口的吸入量而未能形成贯通旋流器轴向的空气柱;当分流比在8%~15%时,形成了高度稳定的空气柱;旋流器受分流比增加的影响,切向速度的峰值呈增加趋势且最大增幅为1.59%;分流比的增大将使得分离效率增大;当分流比为15%时,空气柱直径逐渐减小。Based on the computational fluid dynamics software Fluent and test method of the similarity parameter criterion,the numerical simulation and expermental analysis of the influence of different split ratio on hydrocyclone air core,separation flow field and separation efficiency were carried out. The research results show that when the split ratio is no more than 8%, the amount of air suction from the spigot is limited, therefore failing to form an air core in the axial section of the hydrocyclone. When the split ratio is in the range of 8%~15%,a intensely air core is formed. Affected by the increase of the split ratio, the peak value of tangential velocity of hydrocyclone shows an increasing trend and the maximum increasing amplitude is 1.59%. The increasing in the split ratio will increase the separation efficiency. When the split ratio is 15%, the diameter of air core decreases gradually.

关 键 词：水力旋流器 分流比 数值模拟 分离效率 内流场 

分 类 号：TD454[矿业工程—矿山机电]