电容层析成像技术在分离器料腿浓度测量中的应用(英文)

• 作 者: 孙猛 刘石 李志宏 雷兢
• 机 构: Institute of Engineering Thermophysics,Chinese Academy of Sciences,School of Energy & Power Engineer
• 出 处: Chinese Journal of Chemical Engineering
• 发表日期: 2008年04期
• 关键词: 浓度测量 screw straight multiphase cyclone fluctuating 料腿 verified validate capacita

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.