The design and application of a standard gas flow device
In order to improve the verification/calibration efficiency of gas flowmeter,expand the range of flow verification/calibration,and accurately measure the gas flow,a set of flow standard calibration platform is designed in this paper.Based on the basic theory of flow detection,the advanced computer control technology and configuration technology are combined to develop a gas flow verification device with positive pressure standard meter method.It can realize automatic verification of caliber DN25～DN200 turbine and roots flowmeter.Through a large number of verification and repeatability tests,it is proved that the device has simple structure,low investment and high verification efficiency,can realize real-time and remote monitoring,and meet the requirements of flow measurement in precision,accuracy and humanization.
standard table methodverificationautomatic controlpositive pressure type
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