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一、概况基于变压降原理的文丘利——毕托管流量计是一种结构简单、成本低,具有一定测量精度的用来测量管流(包括元管和非元管)流速或流量的差压感受元件.文丘利——毕托管流量计能够测量大口径管道内的气体或液体的流量.根据对国外进口的文丘利——毕托管流量计和我国自行设计和制造的同类产品的试验结果,本文就它的工作原理、结构特点、流量计算方法、标定数据的处理、安装要求和存在的主要问题等方面进行一些初步讨论.
I. Overview Based on the principle of variable pressure drop Venturi - Billiton tube flowmeter is a simple structure, low cost, with a certain measurement accuracy used to measure the tube flow (including the tube and non-tube) flow rate or the difference Pressure sensing element.Vertoli - Bituo tube flowmeter to measure large-diameter pipe gas or liquid flow.According to imported Venturi - Bituo tube flowmeter and our own design and manufacture of similar products test results In this paper, some preliminary discussions are made on its working principle, structural characteristics, flow calculation methods, processing of calibration data, installation requirements and main problems.