超导电缆过冷液氮冷却循环系统设计及试验验证  

Design and Experiment of Subcooled Liquid Nitrogen Cooling Circulation System for Superconducting Cables

作　　者：黎予颖 伦振坚 杜翔宇 周敏 王哲 袁宇良 李艳锋 LI Yuying;LUN Zhenjian;DU Xiangyu;ZHOU Min;WANG Zhe;YUAN Yuliang;LI Yanfeng(Guangdong Electric Power Design Institute of China Energy Engineering Group Co.,Ltd,Guangzhou 510000,China;Shenzhen Power Supply Co.,Ltd,Shenzhen 518000,Guangdong,China;CSIC Pride(Nanjing)Cryogenic Technology Co.,Ltd,Nanjing 211100,China)

机构地区：[1]中国能源建设集团广东省电力设计研究院有限公司,广州510000 [2]深圳供电局有限公司,广东深圳518000 [3]中船重工鹏力(南京)超低温技术有限公司,南京211100

出　　处：《真空与低温》2023年第2期188-193,共6页Vacuum and Cryogenics

摘　　要：超导电缆过冷液氮冷却循环系统是三相同轴高温超导电缆试验装置中的主要分系统。根据电缆运行参数和负荷要求,进行了过冷液氮冷却循环系统的流程设计;对冷箱和稳压装置进行了结构设计;对流程阻力进行了分析计算,选择了水力曲线匹配的液氮泵;结合电缆的热负载要求,对浸液式盘管换热器进行设计计算,联机试验结果表明设计满足冷却要求。The subcooled liquid nitrogen cooling circulation system for superconducting cables is a main sub-system in the three-coaxial high-temperature superconducting cable test device. According to the operating parameters and load requirements of the cable,the process design of the subcooled liquid nitrogen cooling circulation system and the structural design of cold box and pressure control device are finished. The flow resistance is analyzed and calculated to choose the liquid nitrogen pump that matching the hydraulic curve. Combined with the heat load required by the cable,the immersion coil heat exchanger in the system is designed and calculated. The on-line test results show that the design meets the cooling requirements.

关 键 词：高温超导电缆 过冷液氮循环 压力控制 

分 类 号：TB657[一般工业技术—制冷工程]