Gas-liquid two-phase flow metering device and method

The invention provides a gas-liquid two-phase flow metering device, which mainly comprises a cyclone, a rectifier, an ultrasonic probe, an ultrasonic Doppler velocimeter, a Pitot tube, a differential pressure transducer, a pressure transducer, a temperature transducer, a data acquisition computer, a...

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Bibliographische Detailangaben
Hauptverfasser:	FANG ZHAOJUN, LIANG FACHUN, SUN YUAN, SONG LIANMIN, ZHENG HONGFENG
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	The invention provides a gas-liquid two-phase flow metering device, which mainly comprises a cyclone, a rectifier, an ultrasonic probe, an ultrasonic Doppler velocimeter, a Pitot tube, a differential pressure transducer, a pressure transducer, a temperature transducer, a data acquisition computer, and the like. A flow metering method provided by the invention comprises the steps of separating a gas-liquid two-phase flow in a tube by means of the cyclone to form an annular liquid film region and a central gas region, measuring the liquid flow in a liquid film by means of the ultrasonic Doppler velocimeter, and measuring the gas flow by means of the Pitot tube. Compared with a multiphase flowmeter in the prior art, the above gas-liquid two-phase flow metering device is small in size, compact in structure, small in resistance loss, wide in measurement range, and high in measurement precision.