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超声波风速传感器风场误差的数值模拟
  • Title

    Numerical simulation of wind field error of ultrasonic wind speed sensor

  • 作者

    顾仁勇蒋泽王璐郝叶军

  • Author

    GU Renyong;JIANG Ze;WANG Lu;HAO Yejun

  • 单位

    中煤科工集团常州研究院有限公司天地(常州)自动化股份有限公司

  • Organization
    China Coal Technology and Engineering Group Changzhou Research Institute
    Tiandi (Changzhou) Automation Co., Ltd.
  • 摘要

    为了研究矿用超声波时差法风速传感器测量结果受风场误差的影响,采用计算流体力学方法对不同结构类型的传感器在不同风向、风速下的流场和声道速度分布进行分析。研究结果表明:对射式结构的测量风速受风向角的影响明显大于反射式;对射式结构在45°风向角下经修正后的相对误差最小,且优于反射式;3种反射式结构中,换能器凹陷安装对测量风速的影响最小,凸起安装其次,半凸安装影响最大;换能器凹陷安装受风向角的影响最小,凸起安装和半凸安装影响相当;3种安装方式下,半凸安装在45°风向角下经修正后的测量误差最小;超声波风速传感器选择合适的结构布局,可以提升测量准确度。

  • Abstract

    In order to study the influence of the wind field error on the measurement results of the mine ultrasonic time difference wind speed sensor, the computational fluid dynamics method was used to analyze the flow field and acoustic channel velocity distribution of sensors with different structure types under different wind directions and wind speeds. The research results indicate that the measured wind speed of the opposite-type structure is significantly affected by the wind direction angle than the reflection-type structure. The corrected relative error of the opposite-type structure at a 45 ° wind direction angle is the smallest and better than the reflection-type structure. Among three reflection-type structures, the concave transducers has the smallest impact on wind speed measurement, followed by raised transducers, and semi-raised transducers has the greatest impact. The measurement of concave transducers is least affected by the wind direction angle, while the raised and semi-raised transducers have similar effects. Among the three installation methods, the semi-raised installation has better flow field consistency at different flow velocity, and the corrected measurement error is the smallest. Choosing an appropriate structural layout for ultrasonic wind speed sensors can improve measurement accuracy.

  • 关键词

    矿用风速传感器风速测量超声波时差法数值模拟测风误差

  • KeyWords

    mine wind speed sensor;wind speed measurement;ultrasonic time difference method;numerical simulation;wind measurement error

  • 基金项目(Foundation)
    天地(常州)自动化股份有限公司研发资助项目(2023GY2007)
  • DOI
  • 引用格式
    顾仁勇,蒋泽,王璐,等. 超声波风速传感器风场误差的数值模拟[J]. 煤矿安全,2024,55(3):236−243.
  • Citation
    GU Renyong, JIANG Ze, WANG Lu, et al. Numerical simulation of wind field error of ultrasonic wind speed sensor[J]. Safety in Coal Mines, 2024, 55(3): 236−243.
  • 相关文章
  • 图表
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    • 超声波时差法原理示意

    图(11) / 表(1)

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