| 高真空低重力环境下液态工质排放地面模拟试验研究 |
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| 引用本文： | 王德伟, 徐侃, 宁献文, 等. 高真空低重力环境下液态工质排放地面模拟试验研究[J]. 航天器环境工程, 2019, 36(3): 257-263doi:10.12126/see.2019.03.010 |
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| 作者姓名： | 王德伟 徐侃 宁献文 赵建福 苗建印 牛春洋 |
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| 作者单位： | 1.北京空间飞行器总体设计部 空间热控技术北京市重点实验室，北京 100094;2.中国科学院 力学研究所，北京 100190 |
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| 基金项目： | 国家科技重大专项;国家自然科学基金 |
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| 摘 要： | 针对航天器在空间高真空低重力环境下的流体回路液态工质排放有关问题，以月球环境为例，搭建了月球重力等效地面试验系统，开展地面真空排放试验，获取了工质排放过程中的管路压力和温度变化规律，分析了影响工质排放速率的因素。试验结果表明：工质排放过程中管路的温度基本不变，回路初始压力、工质沿程温度以及排放口温度对于排放速率的影响较小。
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| 关 键 词： | 流体回路 液态工质 工质排放 高真空 月球重力 管路压力 管路温度 |
| 收稿时间： | 2018-12-25 |
| 修稿时间： | 2019-05-30 |
Ground simulation test for the working fluid evacuation in high vacuum and low gravity environment |
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| WANG D W, XU K, NING X W, et al. Ground simulation test for the working fluid evacuation in high vacuum and low gravity environment[J]. Spacecraft Environment Engineering, 2019, 36(3): 257-263doi:10.12126/see.2019.03.010 |
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| Authors: | WANG Dewei XU Kan NING Xianwen ZHAO Jianfu MIAO Jianyin NIU Chunyang |
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| Affiliation: | 1. Beijing Key Laboratory of Space Thermal Control Technology, Beijing Institute of Spacecraft System Engineering, Beijing 100094, China;2. Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | To study the evacuation process of the working fluid for in-orbit spacecraft, a lunar gravity experimental system is built and the influence factors on the evacuation speed of the working medium are studied. The variation of the pressure and the temperature inside the pipelines are obtained in the process of the fluid evacuation. It is indicated that the pipeline temperature remains basically unchanged in the whole emission process, and that the initial pressure, the local temperatures and the outlet temperature all have little effect on the evacuation rate. |
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| Keywords: | fluid loop working fluid working medium evacuation high vacuum lunar gravity inner-tube pressure inner-tube temperature |
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