Experimental Study on the Effects of Pressurization Rate on Bubble Point Pressure of Porous Metallic Screens

被引：0
作者：
Ma Y. [1 ]
Sun J. [1 ]
Li Y. [1 ]
Wang B. [2 ]
Li Y. [1 ]
机构：
[1] Department of Refrigeration and Cryogenics, Xi'an Jiaotong University, Xi'an
[2] Aerospace System Engineering Shanghai, Shanghai
来源：
Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University | 2021年 / 55卷 / 11期
关键词：
Bubble point pressure; Gas-liquid separation; Liquid acquisition device; Metallic screen; Pressurization rate;
D O I：
10.7652/xjtuxb202111021
中图分类号：
学科分类号：
摘要：
A visual testing system for the bubble point pressure of screens is established to investigate the gas-liquid separation performance of screen channel liquid acquisition devices (LADs). The bubble point pressure of Dutch twill screen (DTW) with three woven densities (100×800, 200×600 and 200×1 400) is tested using isopropyl alcohol as working fluid. The influence of the gas pressurization rate on the bubble point pressure is compared and analyzed, and the effective pore diameters of the three screen samples are obtained. Results show that the bubble point pressure shows a good linear decreasing trend with the pressurization rate when the pressurization rate is relatively low. The static bubble point pressures of the three screen samples in isopropyl alcohol obtained by data linear fitting are 1 847.2 Pa, 2 047.2 Pa and 3 371.0 Pa, respectively. With the increase of the pressurization rate, the bubble breakthrough intensity of the screen increases continuously, and gradually changes from local breakthrough with small bubbles to dramatic breakthrough in large screen area. The effective pore diameters of the three screen samples of DTW with woven densities of 100×800, 200×600 and 200×1 400 are about 47.88 μm, 43.20 μm and 26.24 μm, respectively. With the increase of woven density, the effective pore diameter of the screen decreases and the bubble point pressure increases gradually, which reflects stronger barrier property against gas. © 2021, Editorial Office of Journal of Xi'an Jiaotong University. All right reserved.
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页码：192 / 198
页数：6
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