| 移动式天然气流量标准装置的研制与应用 |
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| 引用本文： | 闫文灿,徐明.移动式天然气流量标准装置的研制与应用[J].油气储运,2014(4):418-421. |
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| 作者姓名： | 闫文灿 徐明 |
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| 作者单位： | 中国石化天然气分公司计量研究中心,湖北武汉430073 |
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| 基金项目： | 中国石油化工股份有限公司研究开发项目“移动式天然气计量标准装置技术研究”,710008. |
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| 摘 要： | 为满足天然气流量计的检定和校准需求，完善企业天然气流量量值溯源和传递体系，中国石化研制并投用了一套移动式天然气流量标准装置。其研制借鉴了国内外天然气流量标准装置的设计经验，并结合实际需求进行创新，首次在移动式天然气流量标准装置中设计了3条标准表支路，工况流量范围达到20～8009m3／h。在设备选型方面，选用高准确度涡轮流量计作为标准器，选用超声流量计作为核查表，选用技术先进的强制密封球阀和轴流式流量调节阀进行支路关闭和流量调节。通过不确定度评定和测试试验，该标准装置流量测量不确定度优于O．33％（k=2），达到了设计指标要求。（图2，参11）
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| 关 键 词： | 天然气 流量计 检定 移动式天然气流量标准装置 不确定度 量程 |
Development and application of mobile gas flowrate calibration equipment |
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| YAN Wencan,XU Ming.Development and application of mobile gas flowrate calibration equipment[J].Oil & Gas Storage and Transportation,2014(4):418-421. |
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| Authors: | YAN Wencan XU Ming |
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| Institution: | Metering Research Center, Sinopec Gas Company, Wuhan, Hubei, 430073 |
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| Abstract: | Based on the design practices worldwide, and considering the actual demands, Sinopec innovated a mobile gas flowrate calibration equipment. The equipment can be used to effectively calibrate gas flowmeters and supplement the gas flowrate traceability and transmission system. It is designed, for the first time, with three standard braches and the working flowrate range from 20 m3/hr to 8 000 m3/hr. A high-accuracy turbine flowmeter is chosen as the standard, and an ultrasonic flowmeter for verification. Advanced forcible seal ball valves and axial-flow control valves are installed to close branches and control flowrate. By uncertainty evaluation and testing, the equipment is proved with an uncertainty less than 0.33% （k=2）, fully meeting the design requirements. （2 Figures, 11 References） |
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| Keywords: | gas flowmeter calibration mobile gas flowrate calibration equipment uncertainty range |
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