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一、研制背景随着“气化山西”战略的实施,煤层气的开发利用得到快速发展,四气(天然气、煤层气、焦炉煤气、氢气)合一工作得到了有效推进,形成了覆盖全省的“四气”采、输、供网络,气源平衡和计划管理、气体贸易结算等工作要求对逐年增加的大口径气体流量仪表进行检定、校准。由于目前国内各省计量院建立DN300以下口径气体流量标准装置较多,建立DN300以上口径气体流量标准装置较少,因此研发一套工作能耗
I. Development Background With the implementation of the “Gasification Shanxi” strategy, the development and utilization of CBM has been rapidly developed. The integration of four gas (natural gas, coalbed methane, coke oven gas and hydrogen) has been effectively promoted and a Coverage of the province “Four Gas ” Mining, transportation, for the network, gas source balance and program management, gas trade settlement and other requirements of the annual increase of large-diameter gas flow meter calibration, calibration. Due to the current establishment of provincial metrology institutes DN300 the following standard diameter gas flow more equipment to establish DN300 above standard gas flow less than the standard device, so a set of work to develop energy