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 andreliability of the method are verified by the experimental results.
精确稳固的集中测量在过程工业起一个关键作用。脱机分析的大小能被用来估计过程效率，以在流动识别问题，并且验证计算模型。联机大小能被用于活跃控制。电的电容断层摄影术(ECT ) 是有在多相的流动测量的大潜力的一种唯一的测量技术。试验性的研究在气旋隔板 dipleg 在稳固的集中大小上被执行，用 ECT。在这个实验，八个电极为被放在 dipleg 的直试管上的 ECT 传感器被选择。根据螺丝钉， feeder 和气流的效果从气旋的顶评估的波动的特征被分析。方法的可行性和可靠性被试验性的结果验证。
基金
Supported by the National Natural Science Foundation of China （60672151, 60532020）.
