| 电容层析成像技术在分离器料腿浓度测量中的应用 |
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| 引用本文： | 孙猛,刘石,李志宏,雷兢.电容层析成像技术在分离器料腿浓度测量中的应用[J].中国化学工程学报,2008,16(4):635-639. |
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| 作者姓名： | 孙猛 刘石 李志宏 雷兢 |
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| 作者单位： | 1. Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100080, China;2. School of Energy & Power Engineering, North China Electric Power University, Beijing 102206, China |
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| 摘 要： | Accurate solid concentration measurement plays a key role in the process industry. Measurements analyzed offline can be used to estimate process efficiencies, to identify problems in a flow, and to validate computational models. Online measurements can be used for active control. Electrical capacitance tomography (ECT) is a unique measuring technique with great potential in multiphase flow measurement. Experimental studies are carried out on a solid concentration measurement in a cyclone separator dipleg, using ECT. In this experiment eight electrodes are selected for the ECT sensor that is placed on the straight tube of the dipleg. The fluctuating characteristics according to the screw feeder and the effect of the airflow rate from the top of the cyclone are analyzed. The feasibility and reliability of the method are verified by the experimental results.
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| 关 键 词： | electrical capacitance tomography concentration measurement cyclone separator dipleg gas-solid two-phase flow |
| 收稿时间： | 2007-9-24 |
| 修稿时间： | 2007-9-24
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Application of electrical capacitance tomography to the concentration measurement in a cyclone dipleg |
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| SUN Meng,LIU Shi,LI Zhihong,LEI Jing.Application of electrical capacitance tomography to the concentration measurement in a cyclone dipleg[J].Chinese Journal of Chemical Engineering,2008,16(4):635-639. |
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| Authors: | SUN Meng LIU Shi LI Zhihong LEI Jing |
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| Affiliation: | 1. Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100080, China;2. School of Energy & Power Engineering, North China Electric Power University, Beijing 102206, China |
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| Abstract: | Accurate solid concentration measurement plays a keY role in the process industry.Measurements analvzed offline can be used to estimate process efficiencies,to identify problems in a flow,and to validate computational models.Online measurements Can be used for active contr01.Electrical capacitance tomography(ECT)is a unique measuring technique with great potential in multiphase flow measurement.Experimental studies are carried out on a solid concentration measurement in a cyclone separator dipleg.using ECT. In this experiment eight electrodes are selected for the ECT sensor that is placed on the straight tube of the dipleg.The fluctuating characteristics according to the screw feeder and the effect of the airflow rate from the top of the cyclone are analyzed.The feasibility and reliabifity of the method are verified bv the experimental results. |
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| Keywords: | electrical capacitance tomography concentration measurement cyclone separator dipleg gas-solidtwo-phase flow |
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