基于天然气压缩系数Z提高天然气计量准确度的方法  

Method of Improving the Accuracy of Gas Measure Based on the Compressional Factor Z

作　　者：孟祥适[1] 姜印平[1] 刘玉杰[1] 闫宗魁[1] 郑彤[1] 

机构地区：[1]天津大学自动化学院,天津300072

出　　处：《测控技术》2004年第6期16-17,28,共3页Measurement & Control Technology

摘　　要：从本质上分析了理想气体状态方程的局限性 ,提出了利用压缩系数提高天然气流量精度的概念 ,从而改进了状态方程。压缩系数的引入 ,使天然气的温压补偿有了高精度的保障。介绍了一种较简单可行的计算压缩系数的数学模型方法 。Analying the limit of state equation of ideal gas in substance,the conception that using compressional factor improves the accuracy of gas flux is introduced and the state equation is mended.The application of the compressional factor offers the guarantee for the temperature and pressure compensations of natural gas. A simple and feasible mathematical model for calculating the compressional factors is refered and it has good accuracy degree proved by the practice.

关 键 词：天然气 压缩系数 状态方程 温压补偿 

分 类 号：TE319[石油与天然气工程—油气田开发工程]