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《Natural Gas Industry》 2004-03
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Sun Yanzuo(Beijing Chemical Engineering University).  
According to the requirements of ISO 5167 issued in March, 2003, “V” shaped inner conical flow meter will replace the flow meters of orifice plates, nozzles and Venturi tubes, etc. Which are widely used in China now. The article introduces the new generation of differential pressure flow meter——“V” shaped inner conical flow meter(VNZ), including its working principle, construction, composition of measuring system, main specifications and technical features. Also, the article analyzes the advantages and disadvantages of the flow meter. The results indicates that the flow meter has strong ability to resist pollution, works stable, can measure the wet gas flow, the coke oven gas flow, and the flow with low static pressure and low flow rate. So, it can be used for flow measuring of natural gas, coal gas, heating steam gas and waste water, etc. Also, the article reports the typical applications and the latest progress of the flow meter.
【CateGory Index】: TH814
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