内文丘里管流量计  

Internal Venturi Flow Meter

作　　者：李连科[1] 王汉卿[2] 庞世强[1] 

机构地区：[1]大连索尼卡电子有限公司,大连116600 [2]中国计量科学研究院,北京100013

出　　处：《仪器仪表学报》2001年第6期556-559,共4页Chinese Journal of Scientific Instrument

摘　　要：本文介绍了一种集经典文丘里管、环形孔板和耐磨孔板计量性能优点于一体的新型差压装置——内文丘里管 ,对这种差压装置的结构、测量原理、技术性能、适用范围、可膨胀性系数的确定方法以及内文丘里管优异计量性能形成的机理作了简要的论述 ,同时还展望了该种差压装置有望取代孔板等传统差压装置的广泛应用与良好发展前景。A new type differential product-internal venturi tube is introduced, which concentrates metrological advantages of classical venturi, annular orifice and wear-resistant orifice plates. The design, principle of operation, specification and applicability of this differential product are outlined. The method for determining the expansibility factor and the mechanism of forming the excellent metrological performance for this differential product are also described. The prospect of replacing the traditional differential products (e.g.orifice plates) with this new device is expected.

关 键 词：文丘里管 差压式流量计 节流件 差压装置 

分 类 号：TH814.51[机械工程—仪器科学与技术]