基于MATLAB构建反应堆辐照装置气隙控温研究  

Study on the Gas Gap Temperature Control of Material Irradiation Test Based on MATLAB

作　　者：黎竣松 孙皖 黄岗 万灵锋[1,2] 斯俊平 孙胜 潘良明[1,2] LI Junsong;SUN Wan;HUANG Gang;WAN Lingfeng;SI Junping;SUN Sheng;PAN Liangming(Key Laboratory of Low-Grade Energy Utilization Technologies and Systems,Ministry of Education,Chongqing University,Chongqing 400044,China;Department of Nuclear Engineering and Technology,Chongqing University,Chongqing 400044,China;Nuclear Power Institute of China,Chengdu of Sichuan Prov.610213,China)

机构地区：[1]重庆大学低品位能源利用技术及系统教育部重点实验室,重庆400044 [2]重庆大学核工程与核技术系,重庆400044 [3]中国核动力研究设计院,四川成都610213

出　　处：《核科学与工程》2023年第5期971-978,共8页Nuclear Science and Engineering

基　　金：国家重点研发计划资助项目(2018YFB1900400)。

摘　　要：在核反应堆正式试运行之前,需要对各种材料进行辐照考验,以验证材料的耐辐照性能,其中温度控制在试验中尤为重要,目前辐照考验装置的温度控制还存在一定的问题,为解决核反应堆中的材料辐照考验装置的温度控制问题,利用商业软件MATLAB对辐照装置的考验段进行了气隙温度控制的数值模拟,分别进行了气隙尺寸计算、气体组分计算、阴阳辐照计算和阶梯气隙计算,得到了指定辐照温度需求时,通过调节气体混合组分和气隙大小来实现对辐照装置的温度控制改善方案。研究结果表明,当辐照温度需求在200~400℃时,各个计算的温度控制都能达到指定需求。因此,根据一般反应堆所设计的辐照考验装置进行了数值模拟,对提高辐照装置的温度控制问题具有一定参考性。Before the official operation of nuclear reactors,irradiation tests need to be conducted to verify the irradiation resistance of materials.Precise temperature control is particularly important in the test and there are some problems in the temperature control of the irradiation test device yet.In order to solve the temperature control problem,a numerical simulation of gas gap temperature control in the test section of the irradiator was perfo rmed by MATLAB,including gas gap size calculation,gas component calculation,irradiation of front-to-core and back-to-core,and stepped gas gap calculation.According to the simulation,precise temperature control of the irradiator could be achieved by adjusting the gas component and the gas gap size to reach the specific temperature.The results of the study indicated that the temperature control of each calculation can meet the requirements of the irradiation temperature demand within the range of 200~400℃.Therefore,numerical simulations based on irradiation test devices of general reactors are informative for the temperature control problem of the irradiators.

关 键 词：辐照装置 气隙温度控制 阴阳辐照 MATLAB 

分 类 号：TL334[核科学技术—核技术及应用]