临界流文丘里喷嘴法检定气体流量计的应用与研究

Application Research on Critical Flow Venturi Nozzles in Metering of Gas Flow Meter

本文介绍了应用临界流文丘里喷嘴建立气体流量检定标准的研制过程,提出了采用负压式建立起临界流的系统,分析了原理、系统构成、自动控制、软件功能以及对装置重复性、准确性的验证,阐述了对分流旋翼式蒸汽流量计检定的处理。

This paper introduces a process about the metering of gas flow meter by means of critical flow ven-turi nozzles,set up critical flow system by negative pressure,the principles of the critical flow venture nozzles and using it as standad to measure steam flow meter.