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基于超声多普勒与电导环的油水两相流流速测量

刘伟玲 谭超 董峰

刘伟玲, 谭超, 董峰等 . 基于超声多普勒与电导环的油水两相流流速测量[J]. 北京航空航天大学学报, 2019, 45(8): 1536-1543. doi: 10.13700/j.bh.1001-5965.2018.0733
引用本文: 刘伟玲, 谭超, 董峰等 . 基于超声多普勒与电导环的油水两相流流速测量[J]. 北京航空航天大学学报, 2019, 45(8): 1536-1543. doi: 10.13700/j.bh.1001-5965.2018.0733
LIU Weiling, TAN Chao, DONG Fenget al. Oil-water two-phase flow velocity measurement based on ultrasonic Doppler and conductance ring[J]. Journal of Beijing University of Aeronautics and Astronautics, 2019, 45(8): 1536-1543. doi: 10.13700/j.bh.1001-5965.2018.0733(in Chinese)
Citation: LIU Weiling, TAN Chao, DONG Fenget al. Oil-water two-phase flow velocity measurement based on ultrasonic Doppler and conductance ring[J]. Journal of Beijing University of Aeronautics and Astronautics, 2019, 45(8): 1536-1543. doi: 10.13700/j.bh.1001-5965.2018.0733(in Chinese)

基于超声多普勒与电导环的油水两相流流速测量

doi: 10.13700/j.bh.1001-5965.2018.0733
基金项目: 

国家自然科学基金 61473206

天津市应用基础研究计划 17JCZDJC38400

详细信息
    作者简介:

    刘伟玲  女, 博士研究生。主要研究方向:超声多相流过程参数检测

    谭超  男, 博士, 教授, 博士生导师。主要研究方向:多相流过程参数检测、过程层析成像

    董峰   男, 博士, 教授, 博士生导师。主要研究方向:多相流过程参数检测、过程层析成像

    通讯作者:

    谭超, E-mail: tanchao@tju.edu.cn

  • 中图分类号: TH815;TP216+.1

Oil-water two-phase flow velocity measurement based on ultrasonic Doppler and conductance ring

Funds: 

National Natural Science Foundation of China 61473206

The Applied Basic Research Foundation of Tianjin 17JCZDJC38400

More Information
  • 摘要:

    两相流动现象广泛存在于众多工业领域中,其流动过程参数如流速的准确测量对量化体积/质量流量及优化生产工艺和过程设备有重要意义。针对水平油水两相流流速测量问题,提出了一种同侧双晶连续波超声多普勒(CWUD)与电导环传感器相结合的测量方法。非侵入式超声多普勒传感器为双晶超声换能器,由2个倾角相同且中心频率为1 MHz的压电陶瓷晶片组成,两者之间使用隔声材料防止声波干扰,其中发射晶片向流体连续发射超声波,同时接收晶片接收经流体中离散液滴散射的超声波,测量区间覆盖管道横截面的整个径向范围。动态实验在50 mm管径的水平油水两相流装置上完成,通过分析油水两相流多普勒频移响应特性,发现在测量区间内,平均多普勒频移与总表观流速之间随连续相不同而呈现2种线性关系。因此,根据电导环传感器的电学敏感原理,获得无量纲电压参数判断两相流的连续相,继而选取相应流动状态下的测量模型,计算流体总表观流速。实验结果表明:总表观流速估计值均方根误差为0.01 m/s,平均相对误差为3.09%,其中相对误差小于5%的置信概率为70%。

     

  • 图 1  同侧双晶超声多普勒传感器

    Figure 1.  One-side two-chip ultrasonic Doppler sensor

    图 2  实验装置示意图

    Figure 2.  Schematic of experimental facility

    图 3  超声多普勒和电导环测量系统

    Figure 3.  Ultrasonic Doppler and conductance ring measurement system

    图 4  油水两相流多普勒频移响应特性

    Figure 4.  Doppler shift response characteristics in oil-water two-phase flow

    图 5  无量纲电压参数V分布

    Figure 5.  Distribution of dimensionless voltage parameter V

    图 6  总表观流速计算流程

    Figure 6.  Calculation flowchart of overall superficial flow velocity

    图 7  流速测量结果

    Figure 7.  Flow velocity measurement results

    图 8  总表观流速测量结果和相对误差分布

    Figure 8.  Overall superficial flow velocity measurement results and relative error distribution

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出版历程
  • 收稿日期:  2018-12-18
  • 录用日期:  2019-01-18
  • 刊出日期:  2019-08-20

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