| 切向叶片角度对中心给粉旋流燃烧器气固流动特性影响 |
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| 引用本文： | 靖剑平,张春明,孙微,李争起.切向叶片角度对中心给粉旋流燃烧器气固流动特性影响[J].节能技术,2012,30(3):195-198. |
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| 作者姓名： | 靖剑平 张春明 孙微 李争起 |
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| 作者单位： | 1. 环境保护部核与辐射安全中心,北京,100082
2. 哈尔滨工业大学能源科学与工程学院,黑龙江哈尔滨,150001 |
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| 基金项目： | 国家“十一五”科技攻关项目（Contract No.2006BAA01B01）;中国高新技术研究和发展项目（Contract No.2007AA05Z301） |
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| 摘 要： | 利用三维激光多普勒测速仪,在气固两相实验台上,对不同切向叶片角度下中心给粉旋流燃烧器出口区域的气固流动特性进行了研究,获得了三种切向叶片角度下的三维平均速度和颗粒体积浓度的分布。结果显示,随着切向叶片角度的减小,轴向、径向和切向平均速度峰值都增加,回流区尺寸和旋流数也增大。同时,在x/d=0.1～0.7截面,随着切向叶片角度的减小,在燃烧器中心区域的颗粒体积流量峰值增加。
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| 关 键 词： | 旋流燃烧器 中心给粉 PDA 气固两相流动特性 |
Influence of the Tangential Vane Angle on Gas/Particle Flow Characteristics of a Centrally Fuel - Rich Swirl Burner |
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| JING Jian-ping
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ZHANG Chun-ming
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SUN Wei
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LI Zheng-qi.Influence of the Tangential Vane Angle on Gas/Particle Flow Characteristics of a Centrally Fuel - Rich Swirl Burner[J].Energy Conservation Technology,2012,30(3):195-198. |
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| Authors: | JING Jian-ping ZHANG Chun-ming SUN Wei LI Zheng-qi |
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| Affiliation: | 1.Nuclear and Radiation Safety Center,MEP,Beijing 100082,China; 2.School of Energy Science and Engineering,Harbin Institute of Technology,Harbin 150001,China) |
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| Abstract: | A three-component particle-dynamics anemometer,in conjunction with a gas/particle two-phase test facility,which is used to determine the influence of the tangential vane angle on the gas/particle flow characteristics in the near-burner region of a centrally fuel-rich swirl coal combustion burner.Three-dimensional mean velocities and particle volume flux profiles were obtained.The peaks of axial,radial,and tangential mean velocities increase as the tangential vane angle decreases.At the same time,the recirculation zone and the swirl number both increase.At x/d=0.1-0.7,the peak particle volume flux near the chamber axis increases as the tangential vane angle decreases. |
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| Keywords: | swirl burner centrally fuel-rich PDA gas/particle flow characteristics |
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