小型NaK热真空电磁泵温度场仿真研究  

Temperature field simulation on a small NaK thermal vacuum electromagnetic pump

作　　者：刘丰 陈硕 毕可明[3] 刘天才[3] 王建军[1,2] 孙中宁[1,2] LIU feng;CHEN Shuo;BI Keming;LIU Tiancai;WANG Jianjun;SUN Zhongning(College of Nuclear Science and Technology,Harbin Engineering University,Harbin 150001,China;Heilongjiang Provincial Key Laboratory of Nuclear Power System&Equipment,Harbin Engineering University,Harbin 150001,China;China Institute of Atomic Energy,Beijing 102413,China)

机构地区：[1]哈尔滨工程大学核科学与技术学院,黑龙江哈尔滨150001 [2]哈尔滨工程大学黑龙江省核动力装置性能与设备重点实验室,黑龙江哈尔滨150001 [3]中国原子能科学研究院,北京102413

出　　处：《应用科技》2022年第1期99-104,共6页Applied Science and Technology

摘　　要：为全面地评估热真空电磁泵内关键部件可能存在的过热风险,本文基于STAR-CCM+软件对小型NaK热真空电磁泵样机开展了温度场仿真计算,探索了设备在真空环境和大气环境下,气密腔室内部不同气体组分、工质及环境温度对其温度场的影响规律。研究表明辐射换热对电磁泵的散热起着决定性的作用,真空环境下有必要采取热控措施以降低局部热点温度。研究成果既可为电磁泵内详细温度场的数值模拟提供参考,也可为后续电磁泵的工程设计和优化提供理论支撑。In order to comprehensively evaluate the possible overheating risk of key components in the thermal vacuum electromagnetic pump,In this paper,based on the STAR-CCM+software,the temperature field and flow field of the small NaK thermal vacuum electromagnetic pump prototype is simulated and calculated.Furthermore,the influence of different filling gas composition,working medium and ambient temperature on the temperature field of the equipment are explored respectively in a vacuum and atmospheric environment.The results show that the radiation heat transfer plays a decisive role in the heat dissipation of the electromagnetic pump,and it is necessary to take thermal control measures to reduce the local hot spot temperature of the electromagnetic pump in a vacuum environment.The analysis conclusion can provide a method to simulate the temperature field inside an electromagnetic pump,as well as a theoretical support for subsequent engineering design and optimization of electromagnetic pumps.

关 键 词：电磁泵 真空 等效导热系数 温度场 速度场 钠冷快堆 空间堆 数值模拟 

分 类 号：TL331[核科学技术—核技术及应用]