摘要
槽式孔板用于湿气计量时,差压值会因气液相间作用而产生"过读",而采用旋进漩涡流量计时,旋进频率会因液相增大而产生"欠读"。通过分析槽式孔板"过读"和旋进漩涡流量计"欠读"的影响因素,以空气-水为介质开展了一系列两相流量计量实验,建立了各自的两相流量计量模型。将2种模型相结合建立了稳态计量模型。测试结果表明,在本文实验条件下,当液相流量小于1.0m3/h时,利用本文模型计算得到的气相流量相对误差在5%以内。
The higher differential pressure caused by gas-liquid interaction will result in “over-read- ing” when slotted orifice is used in wet gas mete- ring, while the lower precession frequency with the increase of liquid flow rate will result in “less- reading” when vortex precession flow-meter is used. Through analyzing the influencing factors of “over-reading” and “less-reading” resulted from the slotted orifice and vortex precession flow-meter respectively and doing a series of two-phase flow rate metering experiments based on air-water flow, the respective two-phase flow rate metering models were established. By combining them, steady-state metering model was established. The testing re- sults show that, under the experiment conditions in this study, when the liquid flow rate is less than 1.0 m3/h, the gas flow rate calculated by this model has the relative error only within 5 %.
出处
《中国海上油气》
CAS
CSCD
北大核心
2013年第3期78-82,共5页
China Offshore Oil and Gas
基金
国家自然科学基金"基于槽式孔板的低含液率气液两相流计量技术研究(编号:60672003)"部分研究成果
关键词
槽式孔板
旋进漩涡流量计
气液两相流
湿气计量
稳态计量模型
slotted orifice
vortex precession flowmeter
gas-liquid two-phase flow
wet gas mete-ring
steady-state metering model
