可变量程弯管流量计设计优化方案研究

Optimization Research of Elbow Flow Meter Design with Alterable Measurement Range

利用CFX数值模拟方法分析2种可变量程弯管流量计的设计思路。结果表明:(1)传统弯管流量计单纯改变测压孔位置不能明显增加低流量时测量压差;(2)节流件可以增加测量压差;(3)机翼型节流件可以将该弯管流量计的测量下限扩展近25%。

In this paper, the design concept of two elbow flowmeters with alterable measurement range is studied by CFX numerical simulation. The results show that： a. changing the pressure taps of the traditional elbow flow meter could not significantly increase the differential pressure under the low flow condition; b.Throttling elements could increase the differential pressure; c. The airfoil could make the differential pressure increase 25%.