1. 西安交通大学制冷与低温工程系,西安,710049
2. 西安航天动力试验技术研究所,西安,710100
: 2022-03-23。作者简介: 马原(1991—),女,助理教授。基金项目: 国家自然科学基金资助项目(51906194)
网络首发:2022-09-10,
纸质出版:2022
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马原, 高炎, 高强, 等. 液氧/液甲烷低温推进剂深度过冷加注实验研究[J]. 西安交通大学学报, 2022,56(9):134-141.
MA Yuan, GAO Yan, GAO Qiang, et al. Deep Subcooling Filling of LO2/LCH4 Cryogenic Propellants[J]. 2022, 56(9): 134-141. DOI: 10.7652/xjtuxb202209014.
马原, 高炎, 高强, 等. 液氧/液甲烷低温推进剂深度过冷加注实验研究[J]. 西安交通大学学报, 2022,56(9):134-141. DOI: 10.7652/xjtuxb202209014.
MA Yuan, GAO Yan, GAO Qiang, et al. Deep Subcooling Filling of LO2/LCH4 Cryogenic Propellants[J]. 2022, 56(9): 134-141. DOI: 10.7652/xjtuxb202209014. DOI:
为了提高低温推进剂深度过冷技术成熟度
以充分利用其在降低过冷装置系统质量、延长贮存时间等方面的工程应用优势
针对液氧/液甲烷低温推进剂组合
以70 K/97 K为目标开展深度过冷方案对比与流程设计
并通过搭建中等规模液氧和液甲烷快速深度过冷加注实验系统进行可行性测试验证。结果表明:针对中大规模过冷装置系统
液氧系统采用常压液氮浴+负压液氮浴两级换热过冷方案(换热器均采用铝制板翅式换热芯)
液甲烷系统采用常压列管式液氮浴式换热器过冷加注方案; 为满足快速过冷加注需求
液氧/液甲烷系统均采用边过冷边加注的系统流程; 在加注流量为1.0 L·s
-1
左右的稳定测试阶段
液氧实验系统中入口温度约108 K的液氧经一级、二级换热器能够分别被冷却至约88 K及70 K以下
液甲烷实验系统也实现了97 K液甲烷的深度过冷与快速加注
成功验证了设计方案的可行性。研究工作能够为中国开展过冷低温推进剂的研究与工程应用提供理论与技术支持。
To improve the readiness level of deep subcooling technology for cryogenic propellants
and then sufficiently utilize the advantages of subcooled cryogenic propellants in industry applications
such as reduced system weight and extended storage time
scheme comparison and system design of deep subcooling are carried out at 70 K/97 K for combination of LO
2
/LCH
4
cryogenic propellants
and a medium-scale experimental system for their rapid deep subcooling is established to test and verify the feasibility. The results show that for medium and large scale sy
stems
the heat exchange method with an atmospheric and a subatmospheric liquid nitrogen(LN
2
)bath heat exchangers(cores of aluminum fin-plate type)is adopted for LO
2
system while the subcooling filling scheme with an atmospheric LN
2
bath tubular heat exchanger is adopted for LCH
4
system. To meet the requirements for rapid subcooling and filling
the simultaneous subcooling scheme is adopted for both LO
2
and LCH
4
systems. At the stable testing stage with a filling flow rate of around 1.0 L·s
-1
LO
2
in the LO
2
test system is cooled down from about 108 K at the inlet to around 88 K and below 70 K
respectively after flowing through the two heat exchangers
while for the LCH
4
test system
deep subcooling and rapid filling of 97 K LCH
4
is also achieved. This successfully verifies the feasibility of the designed deep subcooling and filling scheme. This study could provide theoretical and technical support for the future research and engineering applications of subcooling cryogenic propellants in China.
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