力学与实践 ›› 2014, Vol. 36 ›› Issue (1): 64-75.DOI: 10.6052/1000-0879-13-144

• 应用研究 • 上一篇    下一篇

新型涡轮流量计的理论模型

王菊芬, 孟浩龙, 岳彬, 余向明   

  1. 航空油料及油料装备检测试验中心, 北京100076
  • 收稿日期:2013-04-15 修回日期:2014-01-02 出版日期:2014-02-08 发布日期:2013-12-25
  • 通讯作者: 王菊芬,工程师,博士,研究方向为流体测量的计算流体力学仿真、流量计及其检测方法的研究.E-mail:wangjufen@163.com
  • 基金资助:

    中国人民解放军总后勤部军需物资油料部资助项目(20070407).

THE THEORETICAL MODEL OF A NEW-TYPE TURBINE FLOWMETER

WANG Jufen, MENG Haolong, YUE Bin, YU Xiangming   

  1. The Aviation Fuel and POL Equipment Test Center, Beijing 100076, China
  • Received:2013-04-15 Revised:2014-01-02 Online:2014-02-08 Published:2013-12-25

摘要:

基于动量力矩定理和流体边界层理论,建立了一新型涡轮流量计的理论模型. 利用该理论模型可以分析叶轮几何参数对流量计计量性能的影响. 以一DN50 涡轮流量计为例,利用本文所建立的理论模型对该流量计的仪表系数进行了计算,并在一体积管标准装置对该流量计的仪表系数进行标定. 结果表明,计算值和实验值较为吻合,误差在±;3.5% 以内,验证了模型的有效性,从而为仪表的结构优化设计提供了理论依据.

关键词:

涡轮流量计|长螺旋形叶轮|理论模型|试验|仪表系数

Abstract:

The theoretical model of a new-type turbine flowmeter is proposed based on the theorem of moment of momentum and the boundary layer theory of fluids, for analyzing the influence of the rotor's geometry on the flowmeter's metrological performance. The meter factor of a DN50 turbine flowmeter is calculated with the theoretical model and by using a standard volume tube. The effectiveness of the model is verified as it is shown that the calculated results are in a good agreement with the experiment results with an error in the range of ±3.5%, and the model provides a theoretical basis for the meter's optimization design.

Key words:

turbine flowmeter|long helical rotor|theoretical model|experiment|meter factor

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