| 防返混锥对旋风分离器旋进涡核的抑制作用 |
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| 引用本文： | 吴小林,王红菊,时铭显. 防返混锥对旋风分离器旋进涡核的抑制作用[J]. 中国石油大学学报(自然科学版), 2001, 25(3) |
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| 作者姓名： | 吴小林 王红菊 时铭显 |
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| 作者单位： | 石油大学机电工程学院, |
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| 基金项目： | 国家自然科学基金资助 (2 0 0 76 0 2 8) |
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| 摘 要： | 用热线风速仪采样测定了装有防返混锥的旋风分离器旋进涡核 (PVC)的作用范围和频率、幅值等参数 ,并用FFT变换的方法进行了处理。结果表明 ,防返混锥极大地抑制了旋进涡核的作用 ,特别是使旋进涡核的作用范围控制在内旋流很小的区域内 ,有效地防止已分离粉尘的再次扬起。从旋风分离器非稳态运动的旋进涡核的角度说明了防返混锥的作用机理
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| 关 键 词： | 旋风分离器 旋进涡核 防返混锥 |
EFFECT OF INSTALLATION OF ANTI REENTRAINMENT CONE ON RESTRAINING PVC IN A CYCLONE SEPARATOR |
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| WU Xiao lin,et al.. EFFECT OF INSTALLATION OF ANTI REENTRAINMENT CONE ON RESTRAINING PVC IN A CYCLONE SEPARATOR[J]. Journal of China University of Petroleum (Edition of Natural Sciences), 2001, 25(3) |
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| Authors: | WU Xiao lin et al. |
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| Abstract: | The precessing vortex core (PVC) was measured in a cyclone separator with anti reentrainment cone fitting in its dust hopper by means of hot wire anemometer. The parameters of PVC, such as frequency, amplitude and existing area of PVC were obtained after the velocity samples were analyzed by FFT. Anti reentrainment cone can control the action of PVC. Especially, the existing area of PVC is limited in inner vortex core. The fine particles near the wall stirred up and reentrained into inner vortex core are reduced greatly, which shows the possibility of anti reentrainment cone to improve the efficiency of a cyclone separator. |
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| Keywords: | cyclone separator precessing vortex core anti reentrainment cone |
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