| 百叶窗浓缩器叶片附近两相流场的实验及磨损预测 |
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| 引用本文： | 管晓艳,孙绍增,郭洋洲,郝伟,王正阳,陈力哲.百叶窗浓缩器叶片附近两相流场的实验及磨损预测[J].科学技术与工程,2010,10(33). |
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| 作者姓名： | 管晓艳 孙绍增 郭洋洲 郝伟 王正阳 陈力哲 |
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| 作者单位： | 1. 哈尔滨工业大学燃烧工程研究所,哈尔滨,150001
2. 哈尔滨工业大学,土木工程学科博士后流动站,哈尔滨,150001 |
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| 基金项目： | 国家高技术研究发展计划（863计划） |
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| 摘 要： | 采用粒子动态分析仪(PDA)对百叶窗煤粉浓缩器内叶片表面区域的流场分布进行了详细测量，获得了叶片表面附近区域两相速度和流动角的分布。采用磨损率的半经验公式对叶片的磨损进行了预报，并进行了叶片磨损的工业实验。结果表明：叶片磨损严重的区域发生在叶片的下部；后级叶片较前级叶片磨损速度快；同一级叶片上，叶片后端磨损严重。
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| 关 键 词： | 百叶窗浓缩器 两相流 叶片 实验 磨损预测 |
| 收稿时间： | 9/10/2010 2:52:11 PM |
| 修稿时间： | 9/11/2010 8:36:45 PM |
Experimental Study on the Gas-Solid Two Phase Flow and Numerical Prediction of the Blade Surface Erosion in a Louver Coal Concentrator |
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| Guan xiaoyan,Sun shaozeng,GUO Yang-zhou,Hao Wei,Wang zhengyang and CHEN Li-zhe.Experimental Study on the Gas-Solid Two Phase Flow and Numerical Prediction of the Blade Surface Erosion in a Louver Coal Concentrator[J].Science Technology and Engineering,2010,10(33). |
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| Authors: | Guan xiaoyan Sun shaozeng GUO Yang-zhou Hao Wei Wang zhengyang and CHEN Li-zhe |
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| Institution: | GUAN Xiao-yan,SUN Shao-zeng,GUO Yang-shou,HAO Wei,WANG Zheng-yang 1,CHEN Li-zhe(Research Institute of Combustion Engineering,Post-doctoral station of civil engineering 1,Harbin Institute of Technology,Harbin 150001,P.R.China) |
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| Abstract: | The gas-solid two phase flow in a louver coal concentrator (LCC) was investigated using Particle Dynamics Analyzer (PDA). The velocity and flow angle of the air/particle near the blade surface were obtained. The erosion of the blade was predicted using semi-empirical correlation for the erosion ratio. The industrial test of the erosion of the blade was carried out. The results show that the lower part of the blade is eroded heavily. The erosion ratio of the downstream blade is higher than that of upstream. At a blade, the erosion at the back is heavier than at the front. |
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| Keywords: | louver concentrator two phase flow blade experiment erosion prediction |
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