| 内旋流加速旋风集尘器混流区与中心旋流区的流场分布 |
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| 引用本文： | 陈杰,徐振国,丁德胜,潘志刚,赵学笃,温晓南.内旋流加速旋风集尘器混流区与中心旋流区的流场分布[J].农业工程学报,1998,14(4):48-51. |
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| 作者姓名： | 陈杰 徐振国 丁德胜 潘志刚 赵学笃 温晓南 |
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| 作者单位： | 吉林工业大学;吉林工业大学;吉林工业大学;吉林工业大学;吉林工业大学;吉林工学院 |
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| 摘 要： | 混流区和中心旋流区是内旋流加速旋风集尘器的主要特征之一。该文研究了内旋流加速旋风集尘器混流区和中心旋流区的流场分布，计算出各旋流区的速度，导出流场分布的空间向量。实验表明混流区的切向速度分布为准自由涡形式，准自由涡指数为０．５，在加速气流作用下，混流区切向速度显著增加，最大切向速度２２．６ｍ／ｓ，加速了粉尘分离；混流区轴向速度沿径向递增，最大轴向速度在外边壁处（１．５１ｍ／ｓ），径向速度为向心向；中心旋流区切向速度为强制涡，轴向速度高达４０ｍ／ｓ，径向速度较小且为离心向。
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| 关 键 词： | 旋风集尘器 流场 两相流 分离 粉尘 |
| 收稿时间： | 5/5/1998 12:00:00 AM |
Flow Field Distribution Analysis of Inner Speeding Vortex Cyclone Dust Collector |
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| Chen Jie,Xu Zhenguo,Ding Desheng,Pan Zhigang,Zhao Xuedu and Wun Xiaonan.Flow Field Distribution Analysis of Inner Speeding Vortex Cyclone Dust Collector[J].Transactions of the Chinese Society of Agricultural Engineering,1998,14(4):48-51. |
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| Authors: | Chen Jie Xu Zhenguo Ding Desheng Pan Zhigang Zhao Xuedu and Wun Xiaonan |
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| Abstract: | The structure, flow field distribution and the dust separating procedures of inner speeding vortex cyclone collector are very different from that of traditional cyclone dust collectors. The separation areas are divided into outer vortex area, inner vortex area, mixing vortex area and central vortex area. The mixing vortex area and the central vortex area are important factors for inner speeding vortex cyclone dust collector. This paper investigated the flow field distribution in mixing vortex area and in central vortex area.The airflow velocity was calculated, and the three dimension vector of the flow field distribution was obtained. The test results showed that:1) the tangent velocity distribution of mixing area is quasi free vortex, and the index of quasi free vortex is 0.5,the tangent velocity is higher than that of other areas with the action of inner speeding vortex,and the maximum tangent velocity is 22.6 m/s which is helpful to the dust separating; 2) the axes velocity distribution in mixing area is parabola form and increases along the radial direction,the maximum axes velocity is 1.51 m/s,and the radial velocity in mixing area is centripetal direction; 3) in central vortex area, the tangent vortex distribution is coerce vortex, the highest axes velocity is about 40 m/s in average and the radial velocity is very small and centrifugal. |
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| Keywords: | cyclone dust collector flow field two phase flow separation dust |
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