摘要
目前,国内天然气贸易交接方式正逐步从传统的体积计量转变为能量计量,并涉及发热量的计算,而天然气场站发热量是通过在线气相色谱仪分析天然气的组成并计算。本文依据SY/T 7658-2021《天然气在线气相色谱仪性能评价》中分析系统有效性、色谱柱分离度、组分定量重复性、高位发热量重复性和一致性等计量性能要求,对天然气场站的在线气相色谱仪进行评价。结果表明:仪器的工作状态满足要求。
At present,the transfer mode of domestic natural gas trade is gradually changing from the traditional vol-ume measurement to energy measurement,and involves the calculation of heat output,and the heat output of natu-ral gas stations is analyzed and calculated by online gas chromatograph.In this paper,according to SY/T 7658-2021"Evaluation of Performance of Online Gas Chromatographic Spectrometer for Natural Gas"analysis system ef-fectiveness,chromatographic column separation,component quantitative repeatability,high heat value repeatability and consistency and other measurement performance requirements,the online gas chromatographic spectrometer for natural gas terminal station was evaluated.The results show that the working state of the instrument meets the re-quirements.
出处
《计量与测试技术》
2023年第6期72-75,79,共5页
Metrology & Measurement Technique
关键词
能量计量
在线气相色谱仪
性能评价
energy metering
on-line gas chromatography
performance evaluation
