| 旋转离心风机叶轮内两相流动的高速摄影研究 |
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| 引用本文： | 杨树柏,陈康民,蒋旭平.旋转离心风机叶轮内两相流动的高速摄影研究[J].工程热物理学报,1999(4). |
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| 作者姓名： | 杨树柏 陈康民 蒋旭平 |
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| 作者单位： | 上海理工大学多相流体机械研究所!上海，200093 |
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| 基金项目： | 机械部“八五”重点攻关项目资金资助 |
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| 摘 要： | 固体颗粒与叶栅的磨擦与碰撞，危及叶轮的可靠性和整体装置的稳定性。为研究风机内气固两相流动，利用自制的图象消转装置，拍摄了旋转风机内部固体颗粒相对于叶轮流道的相对运动轨迹的高速摄影照片，对旋转离心风机内颗粒运动特性、颗粒与叶片的碰撞过程及碰撞恢复特性进行了研究，分析了颗粒对叶片的冲蚀机理并指出改进设计思路。
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| 关 键 词： | 离心风机 气固两相流 高速摄影 |
THE RESEARCHING OF TWO-PHASE FLOW IN A ROTATING CENTRIFUGAL FAN |
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| YANG Shubai, CHEN Kangming, JIANG Xuping.THE RESEARCHING OF TWO-PHASE FLOW IN A ROTATING CENTRIFUGAL FAN[J].Journal of Engineering Thermophysics,1999(4). |
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| Authors: | YANG Shubai CHEN Kangming JIANG Xuping |
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| Abstract: | The presence of solid particles in the working wheels leads to a performance deterioration of them both structurally and aerodynamically. Erosion damage is the main reason which extreamly low down the operating life of the centrifugal fans in a coal-burning power station. For the researching of gas-particle two-phase flow in a fan, a special image derotating device is designed. By means of which, high speed photographic pictures of relative moving trajectories of particles in a rotating fan are taken. The characteristics of particle's moving, striking and rebounding are analyzed. The law of blade's wearing is analyzed and the design way of reducing the erosion damage is also indicated in this paper. |
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| Keywords: | centrifugal fan gas-particle two-phase flow high-speed camera |
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