基于槽式孔板的凝析天然气计量技术  

Metering technique for wet gas flow based on slotted orifice

作　　者：耿艳峰[1] 冯叔初[2] 郑金吾[1] 李玉星[2] 

机构地区：[1]中国石油大学(华东)信息与控制工程学院,东营257061 [2]中国石油大学(华东)储运与建筑工程学院,东营257061

出　　处：《仪器仪表学报》2006年第8期873-876,共4页Chinese Journal of Scientific Instrument

基　　金：中国石油天然气集团公司创新基金(W030501);山东省科技攻关(2004GG2205016)资助项目

摘　　要：介绍了一种新型气液两相流量传感器———槽式孔板的结构特点和工作原理,并将其应用于凝析天然气计量技术研究。结合实验数据和理论模型详细分析了影响槽式孔板两相压降倍率的各种因素,利用曲面拟合技术给出了传感器两相压降倍率与压力、气体富劳德准数、Lockhart-Martinelli参数之间的相关式,该相关式计算精度可以满足生产计量的精度要求,为低含液率的凝析天然气流量计研制奠定了基础。A new type of flow sensor called slotted orifice is briefly introduced. It was applied to the development of metering technology for wet gas flow. Based on the theoretical model and experimental data, various facts that affect the two-phase multiplier are analyzed in detail. Based on the surface-fitting technique a more precise equation is given, which describes the relationship among two-phase multiplier, pressure, gas Froude number and Lockhart-Martinelli parameter. The calculation accuracy of the new equation meets the industrial demand. This technique is a groundwork for developing wet gas meter.

关 键 词：槽式孔板 多相流计量技术 两相压降倍率 凝析天然气 曲面拟合 

分 类 号：TH814[机械工程—仪器科学与技术] O359[机械工程—精密仪器及机械]