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| Study on Slug Flow Mechanism of Gas-liquid Two-phase Flow based on Long Throat Venturi Tube |
| FANG Li-de1,2,3,WANG Pei-pei1,2,3,WANG Song1,2,3,LI Sheng-yao1,2,3,TIAN Ji1,2,3,LI Xiao-ting1,2,3,ZHENG Qing-long4 |
1. College of Quality and Technology Supervising, Hebei University, Baoding, Hebei 071000, China
2. Measuring Instruments and Systems Engineering Laboratory of Hebei Province, Baoding, Hebei 071000, China
3. The Center of Measuring Instruments and Systems Engineering and Technology of Baoding, Baoding, Hebei 071000, China
4. Technical Engineering Research Institute of China Petroleum North China Oil Field, Cangzhou, Hebei 061000, China |
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Abstract To study the phase holdup of gas-liquid two-phase flow and obtain the relevant model, by combining with the research status of gas-liquid two-phase flow, using the combination of near-infrared spectroscopy and high-speed photography, and using a new structure of the near infrared system located in the position of the Venturi tube of long throat, a simplified model was proposed by divide the slug flow into two parts, the Taylor bubble and the tail bubble, finally measurement model of the phase holdup measurement was obtainted. To some extent, the problem that the two-phase interface at different parts of the slug flow has a great influence on the received light intensity signal of the near-infrared receiving probe was solved. The measurement effect of the new model was better, and the measurement error of the obtained result was small.
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Received: 04 July 2018
Published: 19 December 2019
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2020, Vol. 41 
