| 光导纤维测定 FCC 湍动流化床中的气泡特性 |
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| 引用本文： | 张小平,钱宇,郭祀远,张蕴璧.光导纤维测定 FCC 湍动流化床中的气泡特性[J].华南理工大学学报(自然科学版),1997(8). |
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| 作者姓名： | 张小平 钱宇 郭祀远 张蕴璧 |
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| 作者单位： | 华南理工大学化学工程研究所 |
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| 基金项目： | 国家自然科学基金,华南理工大学科学基金 |
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| 摘 要： | 在一内径１９０ｍｍ，高５５００ｍｍ流化床实验装置内，以ＦＣＣ催化剂为流化介质，空气为流化气体，采用直射式光导纤维探头于湍流流化区，测定了床中气泡的大小、上升速度及分率等参数，并对实验结果进行了关联。
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| 关 键 词： | 湍流流态化 气泡参数 直射式光导纤维 |
APPLICATION OF THE OPTICAL FIBER PROBE TO THE MEASUREMENT OF THE BUBBLE CHARACTERISTICS IN A TURBULENT FLUIDIZED BED WITH FCC PARTICLES |
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| Zhang Xiaoping,Qian Yu,Guo Siyuan,Zhang Yunbi.APPLICATION OF THE OPTICAL FIBER PROBE TO THE MEASUREMENT OF THE BUBBLE CHARACTERISTICS IN A TURBULENT FLUIDIZED BED WITH FCC PARTICLES[J].Journal of South China University of Technology(Natural Science Edition),1997(8). |
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| Authors: | Zhang Xiaoping Qian Yu Guo Siyuan Zhang Yunbi |
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| Abstract: | An optical fiber probe has been designed and used to measure the radial profiles of the bubble parameters including the ascending velocity,the chord length and the volume fraction in a fluidized bed with an inside diameter of 190mm and a height of 5500mm.The experimental results indicate that,in the turbulent fluidizing regimes,the bubble size and the bubble velocity have a uniform distribution along both the axial and the radial directions in the bed.However,there occurs a non_uniform distribution of the bubble fraction,which increases with the axial direction and decreases remarkably with the radial direction.All these parameters increase with the increase of the gas velocity.The related experimental results are regressed. |
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| Keywords: | turbulent fluidization bubble parameters optical fiber probe |
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