冷压缩机低温测试平台管道应力分析与校核  

Stress analysis and verification for pipes in a cold compressor cryogenic test platform

作　　者：计永健 李俊杰[2] 欧阳子衿 伍继浩[4] Ji Yongjian;Li Junjie;Ouyang Zijin;Wu Jihao(Institude of Physical Science and Information Technology,Anhui University,Hefei 230601,China;High Magnetic Field Laboratory,Hefei Institutes of Physical Science,CAS,Hefei 230031,China;The Hong Kong University of Science and Technology,Hong Kong 999077,China;Technical Institute of Physics and Chemistry,CAS,Beijing 100190,China)

机构地区：[1]安徽大学物质科学与信息技术研究院,合肥230601 [2]中国科学院合肥物质科学研究院强磁场科学中心,合肥230031 [3]香港科技大学,中国香港999077 [4]中国科学院理化技术研究所,北京100190

出　　处：《低温与超导》2025年第1期1-8,共8页Cryogenics and Superconductivity

基　　金：国家重点研发计划(2022520274)资助。

摘　　要：针对2 K低温下材料热应力集中易造成冷压缩机低温测试平台内管道破坏的问题,为确保低温平台长期安全稳定运行,本文通过模拟仿真分析平台内部管道的一次应力和二次应力,改进管道布置和增加波纹管以降低局部应力。结果表明:改进后的管道应力符合标准,即一次应力小于137 MPa,二次应力小于205.5 MPa,可保证冷压缩机低温测试平台的安全性能。To address the issue of thermal stress concentration at 2 K potentially causing damage to the pipelines in the cold compressor cryogenic test platform,the simulation and analysis of the primary and secondary stresses were conducted within the platform's pipelines to improve the layout and add bellows to reduce local stress,ensuring the long-term safe and stable operation of the cryogenic platform.The results indicate that the improved pipeline stresses meet the standards,with primary stress being less than 137 MPa and secondary stress being less than 205.5 MPa,ensuring the safety performance of the cold compressor cryogenic test platform.

关 键 词：低温管道 应力分析 强度校核 波纹管 

分 类 号：TB663[一般工业技术—制冷工程]