目前,全国压缩天然气(CNG)汽车已经超过30万辆,CNG加气站近千座。但是,在这些加气站的运行过程中,出现了一些问题,特别是计量纠纷和投诉比较突出,这需要认真分析、讨论并积极寻求解决办法。一、现存问题1.加气机计量结果误差大(客观原因)目前,加气站选用的加气机无论是进口还是国产,其核心部分均为质量流量计(绝大部分采用进口质量流量计,如罗斯蒙特、丹佛斯、E+H等),其准确度一般为0.5级。之所以选择质量流量计,是为了避免温 At present, the country has more than 300,000 compressed natural gas (CNG) vehicles and nearly 1,000 CNG refueling stations. However, during the operation of these gas filling stations, some problems have arisen. In particular, measurement disputes and complaints have become more prominent. This requires careful analysis, discussion and active search for solutions. First, the existing problems 1. Gasifier error in the measurement results (objective reasons) At present, filling stations selected gasifier whether imported or domestic, the core part of the mass flow meter (the vast majority of imported mass flow meter , Such as Rosemount, Danfoss, E + H, etc.), its accuracy is generally 0.5. The reason for choosing a mass flow meter is to avoid temperature