基于静电传感的气固两相流测量及研究装置.pdfVIP

第 25 卷 第 1 期 电子测量与仪器学报 Vol. 25 No. 1 2011 年 1 月 JOURNAL OF ELECTRONIC MEASUREMENT AND INSTRUMENT · 1 · DOI: 10.3724/SP.J.1187.2011.00001 基于静电传感的气固两相流测量及研究装置* 王 超 王玉琳 张文彪 (天津大学电气与自动化工程学院天津市过程检测与控制重点实验室, 天津 300072) 摘 要: 气固两相流参数的测量是国际公认的难题, 针对静电传感原理的测量方法, 从该方法用于气固两相流测量的发展 现状和支撑该研究的装置建设两方面进行了综述。对于测量方面的研究现状, 分别从颗粒速度的测量、颗粒浓度的测量和静电 传感器的模型及测量机理研究 3 个方面进行了介绍。对于研究装置, 从模拟和实流装置两方面进行了介绍, 最后, 指出了应用该 方法实现气固两相流的有效可靠测量, 具有研究价值的问题供读者商榷。 关键词: 气固两相流；静电传感；流量测量 中图分类号: TP212.1 文献标识码: A 国家标准学科分类代码: 460.4010 Gas-solid two-phase flow measurement and research apparatus based on electrostatic sensing Wang Chao Wang Yulin Zhang Wenbiao (Tianjin Key Laboratory of Process Measurement and Control, School of Electrical Engineering and Automation Tianjin University, Tianjin 300072, China) Abstract: The measurement of gas-solid two-phase flow’s parameters is an internationally recognized problem. Based on the electrostatic sensing principle, gas-solid two-phase flow measurement’s research situation and apparatus constructed to support the study are reviewed in this paper. As to the research situation, particle velocity measurement, concentration measurement, electrostatic sensor’s model and measurement mechanism are described. As to the research apparatus, simulation and real flow apparatus are introduced. Finally, it is concluded that this method can be used to realize effective and reliable measurement of gas-solid two-phase flow and the problem of research value is open for readers to discuss. Keywords: gas-solid two-phase flow; electrostatic sensing; flow measurement 1 引 言 值, 对合理配风, 获得低的 NOx 排放具有重要作用,