计量核查技术在气体超声计量系统性能评价中的应用  

Application of Measurement Verification Technology in Performance Evaluation of Gas Ultrasonic Measurement System

作　　者：王辉[1,2] 刘丁发 张强[1,2] WANG Hui;LIU Dingfa;ZHANG Qiang(Natural Gas Research Institute,PetroChina Southwest Oil&Gas Field Company,Chengdu 610213,China;Chengdu Verification Branch of Oil&Gas Large Flowrate Measurement Station,Chengdu 610213,China)

机构地区：[1]中国石油西南油气田分公司天然气研究院,成都610213 [2]国家石油天然气大流量计量站成都分站,成都610213

出　　处：《计量科学与技术》2021年第4期68-73,77,共7页Metrology Science and Technology

摘　　要：介绍了气体超声计量系统的计量核查技术,通过对某天然气管道公司多个计量站点的性能评价进行综合分析,分析了现场计量核查中出现的问题,优化了计量核查方法,并结合计量现场部分典型实验,研究了声速核查结果超差、温度核查结果超差以及气质组分对声速核查的影响。实验证明,计量核查技术是保证计量系统准确可靠的有效措施。This paper introduces the measurement verification technology of the gas ultrasonic measurement system.Through a comprehensive analysis of the performance evaluation of multiple measurement stations of a natural gas pipeline company,the problems in the field measurement verification are analyzed,the measurement verification method is optimized,and the effects of sound velocity verification result overruns,temperature verification result overruns and gas quality components on sound velocity verification are investigated combined with some typical experiments.Experiments have proved that the measurement verification technology is an effective measure to ensure the accuracy and reliability of the measurement system.

关 键 词：气体超声流量计 计量核查 性能评价 

分 类 号：TH814.92[机械工程—仪器科学与技术]