基于十字型天线微波传感器截面含气率测量

doi:10.3969/j.issn.1000-1158.2022.05.07

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摘要为了克服两相流流型对气液两相流含气率的影响, 基于微波技术,设计了基于十字型天线结构的微波传感器。该传感器由水平和竖直双天线组成,可以很好地感应截面上含率值,提高测量准确性。同时对大量的截面含气率模型进行了研究,并参考科学有效的统一评价标准,通过标准装置给出体积含率得到截面含气率的参比真值。利用流动实验数据拟合得到含气率公式,并验证了公式准确性,结果表明传感器测量值与L-M模型具有很好的一致性,微波传感器测量的截面含气率的平均误差在2%以内。

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	于晓飞
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关键词 ：计量学, 气液两相流, 截面含气率, 微波传感器, 十字型天线

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%.

Key words： metrology gas-liquid flow gas holdup microwave sensor cross-shaped antenna

收稿日期: 2020-08-13 发布日期: 2022-05-18

PACS:

TB937

基金资助:京津冀协同创新共同体建设专项(20540301D)

通讯作者: 方立德(1974-),吉林德惠人,河北大学教授,主要从事热工参数(温度、压力、流量)的计量检测与控制、多相流检测技术、供热计量技术方面的研究。Email: fanglide@hbu.edu.cn E-mail: fanglide@hbu.edu.cn

作者简介: 于晓飞(1994-),男,河北石家庄人,硕士研究生,主要研究方向为多相流过程参数检测。Email: 354147218@qq.com

引用本文:

于晓飞,张涛,徐英,方立德. 基于十字型天线微波传感器截面含气率测量[J]. 计量学报, 2022, 43(5): 603-608.
YU Xiao-fei,ZHANG Tao,XU Ying,FANG Li-de. Gas Holdup Measurement of Gas-liquid Two-phase Flow Using Microwave Sensor Based on Cross-shaped Antenna. Acta Metrologica Sinica, 2022, 43(5): 603-608.

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http://jlxb.china-csm.org:81/Jwk_jlxb/CN/10.3969/j.issn.1000-1158.2022.05.07 或 http://jlxb.china-csm.org:81/Jwk_jlxb/CN/Y2022/V43/I5/603

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