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

doi:10.7652/xjtuxb202111021

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

更新时间：2025-07-09

- Experimental Study on the Effects of Pressurization Rate on Bubble Point Pressure of Porous Metallic Screens
- Vol. 55, Issue 11, Pages: 192-198(2021)
- 作者机构：
  
  西安交通大学制冷与低温工程系,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202111021
  CLC： V11
- Online First：10 November 2021，
  
  Published：2021
- 稿件说明：
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Experimental Study on the Effects of Pressurization Rate on Bubble Point Pressure of Porous Metallic Screens[J]. 2021, 55(11): 192-198.
DOI：

Experimental Study on the Effects of Pressurization Rate on Bubble Point Pressure of Porous Metallic Screens[J]. 2021, 55(11): 192-198. DOI： 10.7652/xjtuxb202111021.

摘要

为研究筛网通道式液体获取装置的气液分离性能

搭建了可视化筛网泡破压力测试系统。以异丙醇为工质

对3种编织密度(100×800、200×600和200×1 400)的荷兰斜纹筛网(DTW)的泡破压力进行实验测试

对比分析了气体增压速率对筛网泡破压力的影响规律

并获得了3种筛网样本的有效微孔直径参数。结果表明:增压速率较低时

泡破压力随增压速率呈现出良好的线性递减趋势

通过数据线性拟合

得到了3种筛网样本在异丙醇流体中的静态泡破压力分别约为1 847.2、2 047.2、3 371.0 Pa; 随着增压速率的升高

筛网泡破强度不断增大

从局部小气泡溢出逐渐转变为大面积剧烈泡破; 筛网样本DTW 100×800、200×600和200×1 400的有效微孔直径分别约为47.88、43.20和26.24 μm

随着筛网编织密度的增加

筛网有效微孔直径逐渐减小

泡破压力逐渐增大

体现出更强的气体阻隔能力。

Abstract

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.

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