网幕通道式液体获取装置相分离特性低温实验研究

王晔; 杨光; 金鑫; 耑锐; 任枫; 汪彬; 吴静怡

doi:10.13224/j.cnki.jasp.20220304

网幕通道式液体获取装置相分离特性低温实验研究

doi: 10.13224/j.cnki.jasp.20220304

王晔^1,,
杨光^1,*, ,,
金鑫²,
耑锐²,
任枫²,
汪彬²,
吴静怡¹

1.
上海交通大学制冷与低温工程研究所，上海 200240
2.
上海宇航系统工程研究所，上海 201109

基金项目: 国家自然科学基金重点项目（51936006）；中国航天科技集团第八研究院产学研合作基金资助项目（USCAST2020-15）；上海市科技计划项目（20YF1447900）

详细信息

作者简介:
王晔（1995-），女，工程师，博士，主要从事低温推进剂在轨管理、多孔介质流动与传热等方面的研究

通讯作者:
杨光（1988-），男，副教授，博士，主要从事低温流动与传热等方面的研究。E-mail：y_g@sjtu.edu.cn

中图分类号: V511.6
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- 被引次数: 0
出版历程
- 收稿日期: 2022-05-03
- 网络出版日期: 2024-08-02

Cryogenic experimental study on the phase separation performance of screen channel liquid acquisition device

WANG Ye^1
,,
YANG Guang^{1,*
, ,},
JIN Xin²,
ZHUAN Rui²,
REN Feng²,
WANG Bin²,
WU Jingyi¹

1.
Institute of Refrigeration and Cryogenics，Shanghai Jiao Tong University，Shanghai 200240，China
2.
Shanghai Institute of Aerospace System Engineering，Shanghai 201109，China

摘要

摘要:
为研究网幕通道式液体获取装置的运行性能，搭建了以液氮为工质的液体输运实验系统，研究了网幕通道在稳定运行工况和临界泡破失效工况下的相分离性能。获得了不同网幕规格、不同气体暴露长度下通道总压损与液体流量的变化规律，分析了通道相分离失效的临界压力以及最大液体获取流量。实验结果表明：通道总压降按照203×1600网、130×1100网和325×2300网的顺序逐渐增加，该趋势与多孔网幕自身的压降预测规律一致。网幕自身的泡破压力研究能够反映网幕通道的极限工作特性。实验证明在网幕规格的选择上，流动压损与泡破压力存在明显的博弈关系。重力因素对通道相分离性能的影响体现在重力静压损和气体覆盖率两方面，所获得的低温实验数据能够指导网幕通道的选型优化。
- 低温推进剂 /
- 网幕通道式液体获取装置 /
- 相分离特性 /
- 液体在轨管理 /
- 多孔网幕
Abstract:
Gas-free liquid delivery experiments for liquid nitrogen were conducted to evaluate the performance of the screen channel liquid acquisition devices. The phase separation capability of the screen channel was investigated in detail under successful separation conditions and critical separation failure conditions. The influences of the total channel flow resistance and liquid flow rate of the channel under different screen specifications and the exposed length of the channel to gas phase were obtained, while the critical breakthrough failure pressure and the maximum achievable flow rate were analyzed. Experimental results indicated that the total pressure loss in the screen channel increased with the trend of 203×1600 screen, 130×1100 screen, and 325×2300 screen. This trend of the channel flow resistance was similar to the trend of the screen pressure drop. The bubble point pressure tested for the porous screen can be directly applied to the dynamic separation processes of the screen channel. Moreover, experimental results indicated that there was a best choice of the screen specifications to balance between the flow resistance and the breakthrough failure threshold. The influence of the gravity on the separation performance was reflected on the caused static pressure loss and the gas coverage ration on the screen channel. The cryogenic experimental results may provide a guidance for practical application of the screen channel liquid acquisition devices.
- cryogenic propellants /
- screen channel liquid acquisition device /
- phase separation performance /
- on-orbit liquid management /
- porous screen

HTML

图 1 低温流体液体输运的可视化实验系统原理图

Figure 1. Schematic diagram of the visualization system of vapor-free liquid delivery

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图 2 低温流体液体输运的可视化实验系统实物图

Figure 2. Photograph of the visualized liquid delivery apparatus

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图 3 网幕通道和可视管路的实物图

Figure 3. Photograph of the screen channel section and the cryogenic visualization

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图 4 液体获取工况和泡破失效工况的实验图像

Figure 4. Photograph under the liquid acquisition condition and the separation failure condition

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图 5 斜纹密纹网幕的几何结构和扫描电镜图像

Figure 5. Schematic diagram and SEM image of the metal wire screens

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图 6 具有网幕通道的实验腔示意图

Figure 6. Schematic of the tank equipped with a screen channel LAD

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图 7 不同规格的网幕通道总压损随液体流量变化曲线

Figure 7. Measured pressure difference in the screen channel as a function of mass flow rate evaluated for various screen samples

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图 8 临界泡破压力的相分离实验结果与文献[11]的理论预测结果对比

Figure 8. Comparison between the measured bubble point pressure in the vapor-free liquid delivery experiments and the predicted value based on Ref. [11]

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图 9 不同规格的网幕通道在不同暴露长度下的临界液体获取流量

Figure 9. Critical mass flow rate at the breakthrough failure point evaluated for various screen samples and exposed length

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图 10 临界失效工况下不同规格网幕通道在不同暴露长度下的通道总压损与静压损占比

Figure 10. Total pressure loss of the screen channel and the ratio of the hydrostatic pressure loss at the critical separation failure point evaluated for various screen samples and exposed length

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表 1 斜纹密纹网幕的结构参数

Table 1. Geometrical parameters of the screen samples

项目网幕规格
130×1100 203×1600 325×2300

经线直径/μm 71.0 50.0 32.6
纬线直径/μm 50.0 32.0 25.0
泡破孔径/μm 31.3 20.3 12.9

下载: 导出CSV

表 2 实验工质液氮在100 kPa下的物性

Table 2. Physical properties of liquid nitrogen at 100 kPa

工质温度/K ρ/（kg/m³） μ/（mPa·s） σ/（mN/m）

液氮 77 806.59 0.161 8.90

下载: 导出CSV

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