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一、前言随着天然气工业的不断发展,中亚天然气管道、西气东输二线的建成和投产,各长输管道下游支线及地方天然气管网也相继开始建设,用于天然气贸易交接和内部交接的天然气流量计量器具数量成倍增长,天然气流量计的实流检定需求快速增长。目前我国法定的高压天然气实流检定机构有国家石油天然气大流量计量站及其成都分站、南京分站。虽然这几个检定站均全力检定,仍无法满足我国快速增长的检定市场需求。
I. Introduction With the continuous development of the natural gas industry, the construction and production of the Central Asia Natural Gas Pipeline and the West-East Gas Pipeline Second Line have also started to be built successively for the transfer of natural gas and the internal handover of natural gas pipelines The number of natural gas flow meters has doubled and the demand for natural gas flow meters has rapidly increased. At present, China’s statutory high-pressure natural gas flow verification agencies have the national oil and gas large flow metering stations and its Chengdu sub-station, Nanjing sub-station. Although these test stations are all fully tested, still can not meet the rapid growth of China’s test market demand.