CSNS中子散射高温炉标定与优化研究  

Study on temperature calibration and optimization of neutron scattering furnace for CSNS

作　　者：张纯纯 胡海韬 段钰锋[1] 袁宝 白波 黄志强[2,3] 王光 李海洋[1] 程辉 林权 童欣 ZHANG Chunchun;HU Haitao;DUAN Yufeng;YUAN Bao;BAI Bo;HUANG Zhiqiang;WANG Guang;LI Haiyang;CHENG Hui;LIN Quan;TONG Xin(Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education,School of Energy and Environment,Southeast University,Nanjing 210096,China;Spallation Neutron Source Science Center,Dongguan 523803,China;Institute of High Energy Physics,Chinese Academy of Sciences(CAS),Beijing 100049,China;Guangdong Provincial Key Laboratory of Extreme Coditions,Dongguan 523803,China)

机构地区：[1]东南大学能源与环境学院能源热转换及其过程测控教育部重点实验室,江苏南京210096 [2]散裂中子源科学中心,广东东莞523808 [3]中国科学院高能物理研究所,北京100049 [4]广东省极端条件重点实验室,广东东莞523803

出　　处：《热科学与技术》2024年第3期311-316,共6页Journal of Thermal Science and Technology

基　　金：国家重点研发计划资助项目(2022YFA1604104);中国科学院青年创新促进会、广东省极端条件重点实验室资助项目(2023B1212010002);国家自然科学基金资助项目(U2230207);东莞市2019年引进第九批创新创业领军人才(创新类)资助项目。

摘　　要：介绍了中国散裂中子源一期1 000.0℃中子散射金属箔元件高温炉的加热结构、温度测试结果与优化方案。温度测试结果显示控制点与样品点存在温差,控温过程存在温度过冲问题。通过对控制点与样品点进行温度标定,获得温度标定曲线与公式,实现了控制点温度与样品温度的良好一致性,最大控温误差由60.0减少至20.0℃;通过升温、降温测试,调节控温参数与控温点,减少了样品点的温度过冲,缩短了大量加热及平衡耗时,提高了实验效率。The heating structure of 1 000.0 ℃ furnace in China Spallation Neutron Source(CSNS) was introduced combined with the temperature test results and optimization scheme. The temperature test results showed that there was difference between the control temperature and sample temperature, and the temperature overshot existed in low temperature area during heating. To make the control temperature and sample temperature consistent and reduce the overshoot temperature, temperature calibration and adjustment of temperature control parameters were applied. The temperature test results after optimization showed that the difference between control temperature and sample temperature decreases dramatically from the maximum 60.0 to 20.0 ℃, the overshoot temperature during heating process decreases, which improves the efficiency of neutron experiments.

关 键 词：高温炉 中子散射 温度标定 控温优化 

分 类 号：TL99[核科学技术—核技术及应用]