| 热真空低温环境实验台研制 |
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| 引用本文： | 赵红利,陈双涛,侯予.热真空低温环境实验台研制[J].低温工程,2011(6):6-10,15. |
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| 作者姓名： | 赵红利 陈双涛 侯予 |
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| 作者单位： | 西安交通大学动力工程多相流国家重点实验室,西安,710049;西安交通大学能源与动力工程学院,西安,710049 |
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| 基金项目： | 国家自然科学基金，高等学校博士学科点专项科研基金，中国科学院低温工程学重点实验室开放课题 |
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| 摘 要： | 为满足低温实验的环境要求,建设了液氮温度级别(80 K)的热真空冷阱低温环境实验台,可进行低温实验中压力与压差、温度与温差、流量与热负荷的测量.该实验台采用附加液氮冷阱的真空多层绝热结构,冷阱温度最低可达80 K,无负载时冷箱真空度可达0.000 03 Pa；在采用外循环工质时,测试压力范围为0-1 MPa、压差范围为...
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| 关 键 词： | 低温 真空绝热 实验台 环境模拟 |
Development of thermal vacuum cryo-trap experimental apparatus |
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| Zhao Hongli,Chen Shuangtao,Hou Yu.Development of thermal vacuum cryo-trap experimental apparatus[J].Cryogenics,2011(6):6-10,15. |
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| Authors: | Zhao Hongli Chen Shuangtao Hou Yu |
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| Affiliation: | 1,2 (1State Key Laboratory of Multiphase Flow in Power Engineering,Xi’an Jiaotong University,Xi’an 710049,China) (2School of Energy and Power Engineering,Xi’an Jiaotong University,Xi’an 710049,China) |
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| Abstract: | To meet the environment requirements of cryogenic experiment,an 80 K vacuum cryotrap experiment apparatus was set up,which was available in measurements of pressure for 0-1 MPa,pressure difference for 1 Pa-100 kPa,temperature for 55-300 K,volume flowrate for 2-40 cubic meters per hour and heat load.With a vacuum multilayer thermal insulation structure,the lowest temperature of 80 K can be achieved and vacuum degree of 0.000 03 Pa can be reached in case of non-loaded system.With the developed dynamic data acquisition,processing and error analyze system,the maximum measurement error of this experiment rig are validated no more than 1%.A level 2 measurement precision of pressure and pressure difference,together with a less than 0.16 K temperature measurement error can be achieved with the constructed experiment apparatus. |
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| Keywords: | cryogenics vacuum insulated experimental apparatus environment simulation |
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