基于槽式孔板和旋进漩涡流量计的湿气计量研究  

Study on the wet gas metering technology based on slotted orifice and vortex precession flow-meter

作　　者：王晓智[1] 耿艳峰[2] 华陈权[2] 张晶[1] 叶露[1] 

机构地区：[1]海洋石油工程股份有限公司 [2]中国石油大学(华东)信息与控制工程学院

出　　处：《中国海上油气》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

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 %.

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 

分 类 号：TE937.07[石油与天然气工程—石油机械设备]