Capacity Improvement of Natural Gas Flow Standard Device
YANG Yan-ping1,LIU Bo-tao2,XU Ming2
1. Sinopec Natural Gas Company, Beijing 100029
2. Wuhan Metrology Researth Center of Pipe China West to East Gas Transmission Company, Wuhan, Hubei 430073, China
Abstract：Introduced the composition,measurement principle,traceability method of measurement value and key measures to improve the calibration capacity of the working flow standard device of Wuhan Branch of National Station of Petroleum & Natural Gas flow Measurement,and evaluated its uncertainty. The uncertainty of absolute pressure and differential pressure measurement, the uncertainty of experimental evaluation of compression factor ratio and the uncertainty of standard turbine flowmeter correction are analyzed. The uncertainty of the standard device is 0.13%~0.16%(k=2),which can meet the verification requirements of the natural gas flowmeter of level 0.5 and below.
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2021, Vol. 42 
