摘要
为满足储存环束线管在组装前的封装保护需求,研究开发了一套高效多通道束线管封装平台。平台采用模块化三腔结构设计,并通过高真空插板阀实现灵活隔离与联通,使其既能在调试阶段进行整体抽气,又可在封装阶段灵活切换抽气与充气路径;同时,平台支持单批次同步封装4根束线管,并配置多泵组协同抽气系统,从而有效避免了传统系统频繁启停的问题,实现高效连续封装。文章对平台真空腔在抽真空、烘烤抽气和充气封装三种典型工况下的结构强度进行了分析,结果表明其最小安全裕度为15%,满足ASME强度校核要求。进一步开展系统的泄漏率设计,并基于分子流模拟评估其极限真空度。仿真结果显示平台最大极限真空度可达3.67×10^(−9)Pa,显著优于设计指标。研究为同步辐射储存环束线管的高效封装提供了可行方案,也对超高真空系统的设计与研发具有参考价值。
The beamline tubes of synchrotron storage rings require protective encapsulation.This study developed a high-efficiency multi-channel beamline tube encapsulation platform.And the platform features a modular three-chamber design with high-vacuum gate valves,enabling flexible isolation and interconnection;it allows integrated pumping during commissioning and selective switching between evacuation and gas filling during encapsulation.The system supports simultaneous encapsulation of four beamline tubes per batch and employs a coordinated multi-pump vacuum configuration,effectively avoiding the frequent start-stop operations typical of conventional systems and enabling continuous high-efficiency encapsulation.Structural analyses under three representative operating conditions—evacuation,bake-out pumping,and inflation encapsulation—indicate a minimum safety margin of 15%,meeting ASME strength verification requirements.Leakage rates of the platform were further designed,and molecular flow simulations were conducted to evaluate its ultimate vacuum performance,which reaches 3.67×10^(−9)Pa,significantly exceeding the design target.This work provides a viable solution for efficient encapsulation of storage ring beamline tubes and offers valuable guidance for the design and development of ultra-high vacuum systems.
作者
余清洲
史根木
王思慧
陈肇玺
杨庆喜
YU Qingzhou;SHI Genmu;WANG Sihui;CHEN Zhaoxi;YANG Qingxi(Institute of Plasma Physics,Hefei Institute of Physical Science,Chinese Academy of Sciences,Hefei 230031,China;University of Science and Technology of China,Hefei 230026,China)
出处
《真空科学与技术学报》
北大核心
2025年第9期733-741,共9页
Chinese Journal of Vacuum Science and Technology
关键词
同步辐射光源
束线管封装
强度校核
泄漏率设计
真空度模拟
Synchrotron radiation source
Vacuum encapsulation
Structural strength assessment
Leakage rate design
Vacuum performance simulation
