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中国电机工程学报 2008, 28(14) 86-91 DOI:
ISSN: 0258-8013 CN: 11-2107/TM |
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| 工程热物理 |
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一种新的低含液率气液两相流槽式孔板压降倍率相关式 |
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邢兰昌 耿艳峰 孙苗苗 |
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中国石油大学信息与控制工程学院 中国石油大学信息与控制工程学院 中国石油大学信息与控制工程学院 |
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摘要：
为准确测量凝析天然气流量，对低含液率气液两相流条件下槽式孔板的压降相关式进行了实验研究。总结了孔径比为0.50、0.60和0.75的槽式孔板气相压降倍率FG随Lockhart-Martinelli参数X、气体Froude数Frg和孔径比b变化的规律；将X、Frg和b作为变量对Murdock相关式进行修正，提出了一种新的适用于不同孔径比槽式孔板的压降相关式，并与前人建立的标准孔板压降相关式进行了对比分析。结果表明：对于3种不同孔径比的槽式孔板，所提出的相关式流量计算精度最高，平均相对误差均小于4%。 |
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关键词：
气液两相流
两相压降倍率
压降相关式
槽式孔板
计量技术
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A New Correlation of Slotted Orifice for Gas-liquid Two-phase Flow With Low Liquid Fractions |
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XING Lan-chang GENG Yan-feng SUN Miao-miao |
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Abstract:
For the purpose of accurately measuring flow rates of wet gas, the multiplier correlation for slotted orifice was studied based on experimental data and some theoretical results. Qualitative conclusions about how two-phase multipliers changing with Lockhart-Martinelli parameter, gas Froude number and beta ratio were made for slotted orifices with beta ratios equal to 0.50, 0.60 and 0.75. A new correlation for slotted orifice was put forward, and the performance of existed correlations for the standard orifice plate and the new correlation was compared and analyzed in detail. The proposed correlation shows a more accurate calculation results, and the mean relative errors are all less than 4 % for slotted orifice with different beta ratios. |
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Keywords:
gas-liquid two-phase flow
two-phase multiplier
differential pressure correlation
slotted orifice
metering technology
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收稿日期 2007-10-29 修回日期 1900-01-01 网络版发布日期 |
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DOI: |
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基金项目:
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通讯作者: 邢兰昌 |
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作者简介: |
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作者Email: xinglanchang@163.com |
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| 参考文献： |
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