循环湍动流化床颗粒的局部平均速度在线测量系统  

On-line particle mean velocity measurement system for circulating turbulent fluidized bed particles

作　　者：王胜南 李敏艳 彭词 WANG Shengnan;LI Minyan;PENG Ci(College of Electrical,Energy and Power Engineering,Yangzhou University,Yangzhou 225127,China;Key Laboratory of Low-Carbon Conversion Science and Engineering,Shanghai Advanced Research Institute,Chinese Academy of Science,Shanghai 201210,China)

机构地区：[1]扬州大学电气与能源动力工程学院,江苏扬州225127 [2]中国科学院上海高等研究院低碳转化科学与工程中心,上海201210

出　　处：《扬州大学学报（自然科学版）》2021年第2期36-42,共7页Journal of Yangzhou University：Natural Science Edition

基　　金：国家自然科学基金资助项目(51906209);江苏省高等学校自然科学研究面上资助项目(18KJD470006);扬州市科技局自然科学基金资助项目(YZ2019078);扬州市科技局市校合作专项资助项目(YZ2019130)。

摘　　要：为满足循环湍动流化床(circulating turbulent fluidized bed,C-TFB)颗粒流动速度在线测量的迫切需求,基于阵列式静电传感器,设计了一种颗粒局部平均速度测量系统,并在C-TFB冷模装置上进行速度测量试验.测试结果表明:系统能够实现C-TFB颗粒局部平均速度在线准确测量;在一定条件下,颗粒流动稳定性随着C-TFB床高的下降而下降.Considering the imminent requirement of on-line measurement of particle flow velocity in circulating turbulent fluidized bed(C-TFB),a local particle mean velocity measurement system based on electrostatic sensor arrays is developed,and experimental researches on particle velocity measurement are carried out on a cold model of lab-scale C-TFB built by Key Laboratory of Low-Carbon Conversion Science and Engineering,Shanghai Advanced Research Institute,Chinese Academy of Science.Experimental results show that the measurement system is capable of achieving local mean velocity measurement of C-TFB conveyed particles and the particle flow stability decreases with the decrease of the bed height of C-TFB under certain conditions.

关 键 词：循环湍动流化床 在线测量 阵列式静电传感器 颗粒局部平均速度 

分 类 号：TH815[机械工程—仪器科学与技术]