压缩天然气（CNG）加气柱检定中应注意的问题

摘要

压缩天然气(CNG)加气柱实际上就是大流量的加气机，它作为母站对外销售天然气的主要计量器具，准确与否，直接影响贸易结算的公平性。本文根据现有CNG加气机标准装置在实际检定中的不足，着重探索压力变化对CNG加气柱检定结果带来的影响。%　　The gas filling column of compressed natural gas (CNG) is actual gas filling machine with mass flow. As the main measuring instruments of selling natural gas, its accuracy directly affects the fairness of trade settlement. According to the insufficient of the present CNG gas filling standard device, this paper probes the influence that the pressure change brings to the calibration result of the CNG gas filling column.