天然气工作级标准装置的能力提升

doi:10.3969/j.issn.1000-1158.2021.03.13

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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.

Key words： metrology gas flow natural gas working standard device turbine flowmeter uncertainty evaluation

Received: 11 January 2020 Published: 23 March 2021

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TB937

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	Articles by authors
	YANG Yan-ping
	LIU Bo-tao
	XU Ming

Cite this article:

YANG Yan-ping,LIU Bo-tao,XU Ming. Capacity Improvement of Natural Gas Flow Standard Device[J]. Acta Metrologica Sinica, 2021, 42(3): 339-345.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2021.03.13 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2021/V42/I3/339

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