| 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 |
| DOI： |
| 分类号: |
| 基金项目:国家“863”计划项目(2006AA06Z224);教育部重点项目(109159);中国石油大学研究生创新基金 |
|
| 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
|
|
(College of Mechanical and Electronic Engineering in China University of Petroleum, Dongying 257061，China)
|
| 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%. |
| Key words: cyclone separator gas flow field slotted vortex finder numerical simulation |
