CSNS/RCS陶瓷真空盒热特性及振动研究  

Thermal and Vibration Characteristics of CSNS/RCS Ceramic Vacuum Chamber

作　　者：余洁冰[1,2] 王广源 康玲[1,2] 黄涛 邓昌东[1,2] 陈佳鑫 张俊嵩[1,2] 刘仁洪 王安鑫[1,2] 聂小军 刘磊[1,2] 宁常军 YU Jiebing;WANG Guangyuan;KANG Ling;HUANG Tao;DENG Changdong;CHEN Jiaxin;ZHANG Junsong;LIU Renhong;WANG Anxin;NIE Xiaojun;LIU Lei;NING Changjun(Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China;Spallation Neutron Source Science Center,Dongguan 523803,Chin)

机构地区：[1]中国科学院高能物理研究所,北京100049 [2]散裂中子源科学中心,广东东莞523803

出　　处：《原子能科学技术》2021年第6期1147-1152,共6页Atomic Energy Science and Technology

摘　　要：陶瓷真空盒作为中国散裂中子源(CSNS)快循环同步加速器(RCS)真空系统的关键部件,能避免RCS二极、四极交流磁铁因快速变化的磁场而产生的涡旋电流。因安装空间限制,RCS陶瓷真空盒支架固定在磁铁线圈上。在CSNS/RCS交流磁铁长时间加电测试中,出现陶瓷真空盒断裂、真空破坏的情况。为避免后期出现类似问题,从磁铁发热进而引起陶瓷真空盒不均匀升温的角度出发,对陶瓷真空盒的热特性进行了分析,同时基于双目视觉测量技术,对陶瓷真空盒的振动情况进行了监测,针对部分真空盒水平方向振动异常的问题,确定其影响因素为快卸链条的磁导率超标。最后开展了陶瓷真空盒的支架减振技术研究。Ceramic vacuum chamber is a key component of the rapid cycling synchrotron(RCS)of China Spallation Neutron Source(CSNS),which can avoid the eddy current generated by the dipole and quadrupole AC magnets due to the rapidly changing magnetic field.For the limitation of installation space,ceramic vacuum chamber was located on the magnet coils.During the long-time electric test of AC magnets,it was found that the ceramic vacuum chamber was broken at the welding point.In order to avoid the similar problems in later period,the thermal characteristics of the ceramic vacuum chamber were analyzed.At the same time,based on the binocular vision measurement technology,the vibration of the ceramic vacuum chamber was monitored.In view of the abnormal horizontal vibration of some vacuum chambers,it is determined that the influencing factor is the excessive magnetic permeability of the quick-release flange.Finally the research on the vibration damping technology of the ceramic vacuum chamber was carried out.

关 键 词：陶瓷真空盒 热特性分析 双目视觉 减振支架 

分 类 号：TL503.7[核科学技术—核技术及应用] O328[理学—一般力学与力学基础]