• 恒流装置校准活塞气体流量计的方法研究
    中国测试杂志

    恒流装置校准活塞气体流量计的方法研究
    潘光玲1, 雷  励1, 杨光道2, 向丽萍1, 杨  诒1
    (1. 中国测试技术研究院,四川 成都 610021; 2. 中石油川庆钻探工程有限公司川西钻探公司,四川 成都 610051)
    摘  要:针对干活塞气体流量计连续测量瞬时流量采用的间断工作方式会造成较大的流场阻力波动,为消除阻力波动对干活塞气体流量计准确校准的影响,研究两种恒流法(体积管气体流量标准装置配合调压阀、皂膜气体流量标准装置传递恒流泵)的校准方法,得到满意的干活塞气体流量计校准结果。恒流泵传递比较法把皂膜气体流量标准装置和干活塞气体流量计在量值溯源图上联系起来,是对气体小流量量值溯源体系的有效补充。
    关键词:干活塞气体流量计;瞬时流量;恒流法;校准方法
    中图分类号:TH814;TM930.12;P207+.1;P416.6       文献标志码:A      文章编号:1674-5124(2013)03-0020-04
    Study on calibrating piston type gas flowmeters
    with constant current equipment
    PAN Guang-ling1, LEI Li1, YANG Guang-dao2, XIANG Li-ping1, YANG Yi1
    (1. National Institute of Measurement and Testing Technology,Chengdu 610021,China;
    2. Chuanxi Drilling Company,CNPC Chuanqing Drilling Engineering Company Limited,Chengdu 610051,China)
    Abstract: The lager resistance fluctuation would occur when the piston type gas flowmeter continuously measured the instantaneous flow rage by the discontinuous working mode. To avoid the influence of resistance fluctuation on the calibration of the piston type gas flowmeter, two calibration methods of constant current are researched, and the better calibration results of piston type gas flowmeter were achieved. The constant flow pump transmission comparison method makes the soap film gas flow standard facility be linked with the piston type gas flowmeter in mtrological traceability figure, and the calibration method is a supplemnt to the value traceability system of small gas flow.
    Key words: piston type gas flowmeter; instantaneous flow rate; constant current; calibration method
     
     
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