Gas Holdup Measurement of Gas-liquid Two-phase Flow Using Microwave Sensor Based on Cross-shaped Antenna
YU Xiao-fei1,2,ZHANG Tao2,XU Ying2,FANG Li-de1
1. College of Quality and Technology Supervising, Hebei University, Baoding, Hebei 071002, China
2. School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China
Abstract In order to overcome the influence of the two-phase flow pattern on the gas holdup of the gas-liquid two-phase flow, a microwave sensor based on a cross-shaped antenna structure is designed based on microwave technology. The sensor is composed of horizontal and vertical dual antennas, which can well sense the hold-up value on the cross-section and improve the measurement accuracy. At the same time, a large number of cross-section gas content models are studied, and with reference to the scientific and effective unified evaluation standard, the volumetric content is given by the standard device to obtain the reference true value of the cross-section gas content. The gas content formula is obtained by fitting the flow experiment data, and the accuracy of the formula is verified. The results show that the measured value of the sensor is in good agreement with the L-M model, and the average error of the cross-sectional gas content measured by the microwave sensor is 2%.
YU Xiao-fei,ZHANG Tao,XU Ying, et al. Gas Holdup Measurement of Gas-liquid Two-phase Flow Using Microwave Sensor Based on Cross-shaped Antenna[J]. Acta Metrologica Sinica, 2022, 43(5): 603-608.
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2022, Vol. 43 
