| 三相流化床内不同空间位置压强脉动的特征分析 |
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| 引用本文： | 陈祖茂,郑冲,冯元鼎.三相流化床内不同空间位置压强脉动的特征分析[J].北京化工大学学报(自然科学版),1993(4). |
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| 作者姓名： | 陈祖茂 郑冲 冯元鼎 |
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| 作者单位： | 北京化工学院化学工程系，北京化工学院化学工程系，北京化工学院化学工程系 |
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| 摘 要： | 利用半导体应变片压力传感器。测定了不同操作条件下气-液-固三相流化床内不同轴向和径向位置压强的脉动信号。根据压强脉动信号波形和频域的分析结果,研究了三相流化床不同空间位置压强的脉动特征。发现在一定操作条件下,床层不同轴向位置上压强的脉动特征不同,而不同径向上压强的脉动特征则基本相似。
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| 关 键 词： | 三相流化床 压力传感器 压强脉动信号 频域分析 |
Characteristic Analyses of Pressure Fluctuation Signals at Different Positions of Three-phase Fluidized Beds |
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| Chen Zumao Zheng Chong Feng Yuanding.Characteristic Analyses of Pressure Fluctuation Signals at Different Positions of Three-phase Fluidized Beds[J].Journal of Beijing University of Chemical Technology,1993(4). |
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| Authors: | Chen Zumao Zheng Chong Feng Yuanding |
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| Institution: | Department of Chemical Engineering |
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| Abstract: | Pressure fluctuation signals at different axial and radial positions of gas-liquid-solid three-phase fluidized beds under various operating conditions have been measured by means of semiconductor pressure transducers. Accordimg to the results of wave form and frequency domain analyses of pressure fluctuation signals, characteristics of pressure fluctuation at different space locations were discussed. It was found that properties of pressure fluctuation at different axial positions are different under specified operating conditions, however these at different radial positions are basically identical in a same cross-section of the bed. |
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| Keywords: | three-phase fluidized bed pressure transducers pressure fluctuation signal frequency domain analysis |
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