Study on the effect of pressure on gas ultrasonic flowmeter

HOU Yang, CHEN Zhengwen

Abstract

With the ultrasonic flowmeter (Ultrasonic Flowmeter) in the natural gas metering is widely used, ultrasonic flowmeter accuracy is increasingly concerned. however, by the limitations of the calibration operation conditions, there aredifferences between the calibration operation conditions and actual operation conditions , and operation conditions on theimpact of ultrasonic flowmeter metering lack of systematic research, Wuhan branch station established a mobile natural gas metering standard device can be carried out in different pressure conditions of the gas transmission station calibration services.In this paper, we study the calibration tests carried out by the mobile natural gas metering standard device at different pressures, and through analyzing and integrating data, we derive the metering deviation caused by ultrasonic flowmeter under different working conditions, establish the mathematical model of Reynolds number error correction toguide the use of ultrasonic flowmeter, and eliminate the deviation introduced by the different operation conditions of calibration and use, improve the accuracy of trade measurement, while the research results can be the technical support for the revision of relevant standards and norms.

Keywords

effect; pressure; gas ultrasonic flowmeter

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IMEKO-TC9-2019-039.pdf

DOI

10.21014/tc9-2022.039

IMEKO TC

TC9 - Flow Measurement

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