摘要
根据使用要求和低温阀的相关设计标准,研制了一台"DN15-CV5"型液氦温区低温气动调节阀,并开展了系统的实验研究,得到了一系列与不同阀门开度及压差条件对应的Cv值和漏热量,基于拉依达准则(3σ准则)等方法对实验结果进行了不确定度分析。结果表明,研制的低温气动调节阀具有精准的流量调节特性和良好的绝热性能,能够满足液氦温区低温工程的使用要求。
A specified ’DN15-CV5’ cryogenic control valve was designed based on the practical operating conditions and the design standards. Systematic testing experiments with different valve opening rates and pressure differences were carried out for measuring the flow coefficient and heat leakage of the pneumatic control valve. Furthermore, detailed uncertainty analysis was employed to clarify the significant influence of various conditions based on Pauta criterion(3σ principles) et al. It was shown that the valve has accurate flow coefficient and good heat insulation which can meet the requirements of liquid helium temperature applications.
作者
崔广龙
孙大明
王美超
杨冬冬
Cui Guanglong;Sun Daming;Wang Meichao;Yang Dongdong(Institute of Refrigeration and Cryogenics,Zhejiang University,Hangzhou 310027,China;Key Laboratory of Refrigeration and Cryogenic Technology of Zhejiang Province, Hangzhou 310027, China;Jiangsu Cryote Cryogenic Technology Co.,Ltd., Changzhou 213022, China)
出处
《低温工程》
CAS
CSCD
北大核心
2019年第5期47-52,共6页
Cryogenics
基金
国家自然科学基金项目(NO.51676168,NO.51406218)
关键词
低温阀
流量系数
液氦
cryogenic valve
flow coefficient
liquid helium
