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七十年代,我国从国外引进的大型石油化工生产装置中采用了ANNUBAR流量计来测量流体流量。在六十年代后期发展起来的这种新型差压流量测量元件,是一种ANNUBAR专利技术的测流管,用它测量不同形状截面管道内的流体流量,比现在常用的孔板、喷咀结构形式简单,制造安装方便,维护检修容易,压力损失小,造价低廉,而且不受化学腐蚀影响,可以长期保持测量精度。由于具有上述优点,所以ANNUBAR流量测量元件引起了人们的重视。最近几年国内冶金工业系统研究与试验了类似国外ANNUBAR流量测量元件——插入式测速管。现在本文根据国内外有关ANNUBAR测量技术资料,提出ANNUBAR式测流管的设计方法。
In the seventies, ANNUBAR flowmeter was used to measure fluid flow in large-scale petrochemical production plants introduced from abroad. Developed in the late 1960s, this new differential pressure flow measuring element is a patented ANNUBAR flowtube that measures the flow of fluid in pipes of different cross-sectional shapes than currently available orifice plates, nozzle configurations Simple form, easy manufacture and installation, easy maintenance and repair, pressure loss, low cost, and is not affected by chemical corrosion, long-term measurement accuracy. Due to the above advantages, ANNUBAR flow measurement device has attracted people’s attention. In recent years, domestic metallurgical industry system research and test similar foreign ANNUBAR flow measurement components - plug-in tachometer. Now based on the domestic and international information on ANNUBAR measurement technology, proposed ANNUBAR-type flow measurement tube design.