200 W@4.5 K氦制冷机自动控制系统的设计与实现  

Design and Implementation of 200 W@4.5 K Helium Refrigerator Automatic Control System

作　　者：袁恺 周芷伟[1] 张启勇[1] 余强 YUAN Kai;ZHOU Zhiwei;ZHANG Qiyong;YU Qiang(Institute of Plasma Physics,Hefei Institutes of Physical Science,Chinese Academy of Science,Hefei 230031,China;University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]中国科学院合肥物质科学研究院等离子体物理研究所,合肥230031 [2]中国科学技术大学,合肥230026

出　　处：《真空与低温》2024年第3期282-289,共8页Vacuum and Cryogenics

基　　金：中国聚变堆主机关键系统综合研究设施项目(2018-000052-73-01-001228)。

摘　　要：聚变技术综合研究设施(CRAFT)低温系统计划建造4座氦制冷机,200 W@4.5 K氦制冷机作为其中之一将用于为超导材料性能研究平台提供测试条件。通过对工艺流程的分析,明确了200 W@4.5 K氦制冷机液化模式的控制流程。基于CODAC进行了氦制冷机控制系统的设计与开发,阐述了具体的网络架构和软件设计,以及液化模式下的压缩机自动控制流程和控制回路的设计与实现。运行结果表明,所设计的自动控制程序能够有效完成压缩机启动过程中的增载和压力控制。The Comprehensive Research Facility for Fusion Technology(CRAFT)cryogenic system plans to build four helium refrigerators and several cryogenic key technology research platforms.200 W@4.5 K helium refrigerator,as one of them,will be built to provide testing conditions for a material performance research platform.Through the analysis of the process flow,it has been clarified the control process of helium refrigeration machine liquefaction mode of 200 W@4.5 K.The 200 W@4.5 K helium refrigerator control system is designed and developed based on CODAC control system.The specific network architecture and software design are provided,as well as the design and implementation of the compressor automatic control process and control loop in liquefaction mode.The operation results indicate that the designed automatic control program can effectively complete the load increase and pressure control during the compressor start-up process.

关 键 词：氦制冷机 PLC控制系统 CODAC 自动控制 

分 类 号：TB651[一般工业技术—制冷工程]