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排气芯管结构对导叶式旋风管内流场影响的数值模拟
引用本文:金有海,马艳杰,许伟伟,王建军.排气芯管结构对导叶式旋风管内流场影响的数值模拟[J].中国石油大学学报(自然科学版),2009,33(6).
作者姓名:金有海  马艳杰  许伟伟  王建军
作者单位:中国石油大学,机电工程学院,山东,东营,257061
基金项目:国家"863"计划项目,教育部重点项目,中国石油大学研究生创新基金 
摘    要:利用数值模拟方法,对比分析分流型芯管(SVF)及锥形芯管(CVF)对导叶式旋风管内流场的影响规律.结果表明:分流型芯管具有分流作用,芯管侧缝面积与芯管下口面积之比为2.42时,54%的含尘气流在侧缝处经惯性分离后进入排气芯管;与未开缝的锥形芯管相比,分流型芯管能有效降低芯管下口的短路流量,降低芯管内气流旋转强度,使旋风管总压降降低32%.

关 键 词:旋风管  气相流场  分流型芯管  数值模拟

Numerical simulation of effects of vortex finder on gas phase flow in cyclone with guide finder
JIN You-hai,MA Yan-jie,XU Wei-wei,WANG Jian-jun.Numerical simulation of effects of vortex finder on gas phase flow in cyclone with guide finder[J].Journal of China University of Petroleum,2009,33(6).
Authors:JIN You-hai  MA Yan-jie  XU Wei-wei  WANG Jian-jun
Abstract:The effects of the cone vortex finder (CVF) and slotted vortex finder (SVF) on the gas flow within the cyclones with different vortex finders were studied using numerical simulation method. The results indicate that, when the ratio of slot area to inlet area of SVF is 2.42, about 54% of gas flow entrances the slotted vortex finder through the slot. Compared with CVF , SVF can reduce the short circuit flow rate effectively. The SVF can also reduce the flow swirling intensity in the vortex finder. The total pressure drop decreases by 32%.
Keywords:cyclone separator  gas flow field  slotted vortex finder  numerical simulation
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