大型低温风洞模型进出系统关键技术分析  

Key technology for model access system in cryogenic wind tunnel

作　　者：陈建兵[1] 刘伯林[2] 陈万华[1] 廖达雄[1,3] 赖欢[1] CHEN Jianbing;LIU Bolin;CHEN Wanhua;LIAO Daxiong;LAI Huan(Facility Design and Instrumentation Institute,China Aerodynamics Research and Development Center,Mianyang 621000,China;High Speed Aerodynamics Institute,China Aerodynamics Research and Development Center,Mianyang 621000,China;State Key Laboratory of Aerodynamics,China Aerodynamics Research and Development Center,Mianyang 621000,China)

机构地区：[1]中国空气动力研究与发展中心设备设计与测试技术研究所,绵阳621000 [2]中国空气动力研究与发展中心高速空气动力研究所,绵阳621000 [3]中国空气动力研究与发展中心空气动力学国家重点实验室,绵阳621000

出　　处：《实验流体力学》2022年第1期37-43,共7页Journal of Experiments in Fluid Mechanics

摘　　要：模型进出系统是大型低温风洞的重要组成部分,是实现低温模型更换的核心系统。大型低温风洞模型进出系统具有结构复杂、规模大、功能集成度高、对环境条件要求高等特点。通过对国外低温风洞模型进出系统设计建设历程的回顾,结合国内相关技术现状,分析讨论了大型低温风洞模型进出系统设计的关键技术,阐述了模型进出系统大空间低露点干燥系统、宽温域温度调节系统、大吨位高精度模型运输车、大型隔离门、干燥空间内散湿量控制、宽温域内绝热结构的设计技术难点,并针对性地提出了攻关方向和后续研究建议。The model access system is an important part of the cryogenic wind tunnel, and it is the core system to realize low temperature model replacement. The model access system of the cryogenic wind tunnel has the characteristics of complex structure, large scale, high functional integration and high requirements for environmental conditions. By contrasting overseas the design of the model access system of the cryogenic wind tunnel and introducing the domestic current situation of related technologies, the key technologies of the design for the model access system of the cryogenic wind tunnel are discussed in this article, such as the large volume and low dew point air drying system, temperature regulating system with a wide temperature range, largetonnage and high precision model cart, large lock door, moisture emission control in dry space,etc.. The technical difficulties and research approaches of each aforementioned key technology are expounded, respectively. Finally, some proposals are offered for the design of the model access system of the cryogenic wind tunnel.

关 键 词：低温风洞 模型进出系统 关键技术 低露点 

分 类 号：V211.74[航空宇航科学与技术—航空宇航推进理论与工程]