电导探针向量信号处理的泡状流参数分析  

Analysis of bubbly flow parameters based on four-sensor probe method

作　　者：陈宪丙 刘慎忍 杨雨菲 屈晓航 王昆 CHEN Xianbing;LIU Shenren;YANG Yufei;QU Xiaohang;WANG Kun(School of Thermal Engineering,Shandong Jianzhu University,Jinan 250101,China;Shandong Jiaxiang Construction Engineering Management and Service Center,Jining 272400,China;School of Economics and Management,Northeast Agricultural University,Harbin 150036,China;Department of Energy and Power Engineering,Shandong University of Technology,Zibo 255000,China;National Energy Boxing Power Generation Co.,Ltd.,Binzhou 256500,China)

机构地区：[1]山东建筑大学热能工程学院,山东济南250101 [2]山东省嘉祥县建设工程管理服务中心,山东济宁272400 [3]东北农业大学经济管理学院,黑龙江哈尔滨150036 [4]山东理工大学能源与动力工程系,山东淄博255000 [5]国家能源博兴发电有限公司,山东滨州256500

出　　处：《山东建筑大学学报》2024年第2期89-94,121,共7页Journal of Shandong Jianzhu University

基　　金：山东建筑大学博士科研基金项目(X20035Z);淄博市张店区校城融合发展计划项目(2021JSCG0014)。

摘　　要：泡状流广泛存在于化工、石油、电力等工业场合,对其主要参数的测量不仅是工程设计的必须参考,也是进一步开发两相流理论模型的依据。文章提出并制作了小型四电极电导探针测量空气-水盖泡状流,可以获得局部含气率、界面面积浓度和气泡弦长,且通过已知或合理假设的界面运动方向可获得界面的指向和速度,并通过实验对比四电极电导探针和可视化两种测量方法。结果表明:两种方法具有良好的一致性,四电极电导探针简单、高效,可以准确地测量泡状流中相界面指向等参数,还能有效地解决多维两相流参数测量问题。Bubble flow regime widely exists in industrial applications such as chemical engineering,petroleum,and power generation,and measuring its main parameters is not only essential for engineering design but also serves as a basis for further development of two-phase flow theoretical models.A miniaturized four-sensor electrical probe is made and a gas-liquid two-phase flow experiment is performed to test the proposed signal process scheme.The two-phase flow is controlled to be in cap-bubble flow regime.This paper presents a new signal processing method by which the interface direction and velocity can be obtained,besides void fraction,interfacial area concentration,bubble chord length and the interface velocity vector through legitimately assuming a direction of the interface velocity.The local flow parameters obtained by the probe measurement are compared with the results from visual measurement technique.The comparison indicates that the above two methods are in good agreement.The four-sensor electrical probe possesses the advantages of simplicity and high efficiency,enabling accurate measurement of parameters such as the interface direction in bubbly flows.Moreover,it can effectively address the measurement of parameters in multi-dimensional two-phase flows.

关 键 词：工程热物理 气液两相流 电导探针 向量信号处理 可视化方法 

分 类 号：TK124[动力工程及工程热物理—工程热物理]