| X射线投影成像法测量气固流化床中的固含分布 — (II) 应用及误差分析 |
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| 引用本文： | 张志攀,罗国华,魏飞,汪展文. X射线投影成像法测量气固流化床中的固含分布 — (II) 应用及误差分析[J]. 过程工程学报, 2003, 3(2): 97-102 |
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| 作者姓名： | 张志攀 罗国华 魏飞 汪展文 |
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| 作者单位： | 清华大学化工系,北京,100084 |
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| 基金项目： | 国家杰出青年基金资助项目(编号:29725613) |
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| 摘 要： | 通过标准化实验对X射线投影成像系统的误差进行了分析，进而应用该测量系统对提升管、纳米颗粒聚团床、鼓泡床和大直径下行床入口区的固含分布进行了测量，结果说明本测量方法可较准确、无接触测量气固两相流体系的固含分布.
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| 关 键 词： | X光成像；流化床；固含分布 |
| 文章编号： | 1009-606X(2003)02-0097-06 |
Portable X-ray Photography of Solid Concentration in Gas-Solids Fluidized Beds - (II) Application and Deviation Analysis |
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| ZHANG Zhi-pan,LUO Guo-hua,WEI Fei,WANG Zhan-wen. Portable X-ray Photography of Solid Concentration in Gas-Solids Fluidized Beds - (II) Application and Deviation Analysis[J]. Chinese Journal of Process Engineering, 2003, 3(2): 97-102 |
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| Authors: | ZHANG Zhi-pan LUO Guo-hua WEI Fei WANG Zhan-wen |
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| Abstract: | This paper is focused on the application of the portable X-ray photography technique to measurement of the radial and axial profiles of solid concentration in a gassolids riser, a pilot-plant-scale downer, and a nano- agglomerate fluidized bed of carbon nanotubes. Twenty to thirty images with 100~200 ns X-ray pulses were processed to get a time-averaged concentration profile. Results show that this technique is a promising non-intrusive method to get time-averaged solid concentration profiles in gassolids two phase flow systems. |
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| Keywords: | X-ray fluidized bed solid concentration |
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