| 离散液相对涡街流量计测量误差影响的实验研究 |
| |
| 引用本文： | 贾云飞,孔德仁.离散液相对涡街流量计测量误差影响的实验研究[J].化工自动化及仪表,2009,36(1):60-64. |
| |
| 作者姓名： | 贾云飞 孔德仁 |
| |
| 作者单位： | 南京理工大学,机械工程学院,南京,210094 |
| |
| 摘 要： | 研究雾状流条件下，离散液相对涡街流量计测量误差的影响。对实验结果的进一步分析表明，均相流模型并不适合于涡街流量计在雾状流中的测量。实验在多相流装置上口径为50mm的水平管段上进行，在保证气相流量不变的条件下，研究了0-0．1％液相含率范围内涡街流量计的测量误差，涡街产生的频率值是通过对模拟信号进行傅立叶变换来获取的。利用数值仿真的方法研究了旋涡发生体上涡量场的变化，理论上解释了雾状流中涡街流量计测量误差产生的原因。
|
| 关 键 词： | 涡街流量计 液相含率 雾状流 均相流 测量误差 |
Experiment Study on the Effect of Discrete Liquid Phase for Vortex Street Flowmeter Measuring Error |
| |
| JIA Yun-fei,KONG De-ren.Experiment Study on the Effect of Discrete Liquid Phase for Vortex Street Flowmeter Measuring Error[J].Control and Instruments In Chemical Industry,2009,36(1):60-64. |
| |
| Authors: | JIA Yun-fei KONG De-ren |
| |
| Affiliation: | School of Mechanical Engineering;Nanjing University of Science and Technology;Nanjing 210094;China |
| |
| Abstract: | The measuring error of vortex street flowmeter was investigated in condition of mist flow.Further studies on the experiment indicated the model of homogeneous phase flow was not applicable for vortex street flowmeter in the mist flow.A vortex street flowmeter was installed in a level pipe with a diameter 50mm on the multiphase flow facility.The gas phase flow rate was changeless and the liquid phase fraction was from 0 to 0.1%.The frequency value of vortex streets was gained by the FFT for analog signals.Th... |
| |
| Keywords: | vortex street flowmeter liquid phase fractions mist flow homogeneous phase flow measuring error |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
