Design of in-pile topaz color-alteration device
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摘要: 研制了一种适用于板状燃料堆芯的黄玉改色装置，并对辐照装置的物理安全特性及结构安全特性进行了分析。利用CFD多孔介质模型，获得了改色装置的流场和温度场，确定了功率限制因素，并对装置进行了优化，增强了中子选择材料的冷却能力，结果表明，优化后可在额定功率下进行黄玉改色试验。开展了改色装置的堆外水力学特性实验及冲刷试验，装置工作压差附近的流量试验数据与理论模拟结果差别为-3.6%~1.9%，二者一致，冲刷试验表明，装置对黄玉残渣有很强的包容、收集效果，不会导致燃料元件流道堵塞。Abstract: A new topaz color-alteration device suitable for reactors with plate fuel is developed. The physical and structural safety features have been analyzed. With porous medium model in CFD, the flow and temperature field were got, also the factor limiting the reactor operating power. The device improvement of enhancing the function material cladding's cooling capacity were done. The results shows that the color-alteration experiment could be done at rated power after device improvement. The hydrodynamic characteristic experiment and CFD simulation data by the operation differential pressure were compared, with -3.6%-1.9% difference. The device washing test shows good ability to collect topaz residue, and the flow channel blockage is avoided.
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Key words:
- topaz color-alteration /
- irradiation /
- porous medium /
- hydraulic characteristics /
- washing
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图 3 正常工况下，改色装置速度云图
Figure 3. The velocity contour map of the device with normal operation
图 4 半功率时，辐照筒径向温度分布
Figure 4. Temperature distribution of the irradiation drum in the radial direction with half nominal power
图 6 工作压差附近的水动力特性曲线
Figure 6. Hydrodynamic characteristic near the operation differential pressure
表 1 黄玉改色装置热工水力设计输入参数
Table 1. Input parameters for thermal hydraulic design of the topaz color-alteration device
parameter cooling type pressure drop mass flow/(t·h-1) inlet temperature/℃ the maximum temperature/℃ loading capacity/kg parameter monitoring value forced circulation equalto reactor core < 10 35 < 85 >2 none 
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[1] 李文侠, 李景芝, 王健安. 天然黄玉与辐照改色黄玉的对比研究[J]. 长春科技大学学报, 1999, 29(4): 408-410. https://www.cnki.com.cn/Article/CJFDTOTAL-CCDZ199904022.htmLi Wenxia, Li Jingzhi, Wang Jian'an. Study on the comparing color-changed topaz with natural topaz. Journal of Changchun University of Science and Technology, 1999, 29(4): 408-410 https://www.cnki.com.cn/Article/CJFDTOTAL-CCDZ199904022.htm [2] Pough F H, Rogers T H. Experiments in X-ray irradiation of gem stones[J]. American Mineralogist, 1947, 32(1): 31-43. [3] Nassau K, Prescott B E. Blue and brown topaz produced by gamma irradiation[J]. American Mineralogist, 1975, 60(7): 705-709. [4] 向长金. 黄玉及其辐照改色[J]. 珠宝, 1992, 1: 17-18. https://www.cnki.com.cn/Article/CJFDTOTAL-ZBKJ199201005.htmXiang Changjin. Topaz and irradiation color-alteration. Jewelry, 1992, 1: 17-18 https://www.cnki.com.cn/Article/CJFDTOTAL-ZBKJ199201005.htm [5] 吴瑞华. 黄玉宝石及其改善处理[J]. 国外非金属矿与宝石, 1990(5): 43-46. https://www.cnki.com.cn/Article/CJFDTOTAL-GBYS199005015.htmWu Ruihua. Topaz gems and improvement. Foreign Non-metallic Minerals & Gemstones, 1990(5): 43-46 https://www.cnki.com.cn/Article/CJFDTOTAL-GBYS199005015.htm [6] 季金华, 蔡述伟. 黄玉改色试验及呈色机理研究[J]. 江苏地质, 2000, 24(3): 153-156. https://www.cnki.com.cn/Article/CJFDTOTAL-JSDZ200003005.htmJi Jinhua, Cai Shuwei. Tentative color-modification of topaz and its colorific mechanism studies. Jiangsu Geology, 2000, 24(3): 153-156 https://www.cnki.com.cn/Article/CJFDTOTAL-JSDZ200003005.htm [7] 吴慧春, 唐雪莲, 向长金. 黄玉的辐照改色及赋色机制[J]. 宝石和宝石学杂质, 2002, 4(2): 8-11. https://www.cnki.com.cn/Article/CJFDTOTAL-BSHB200202002.htmWu Huichun, Tang Xuelian, Xiang changjin. Mechanism of irradiation inducing coloration and color change of topaz. Nuclear Electronics & Detection Technology, 2002, 4(2): 8-11 https://www.cnki.com.cn/Article/CJFDTOTAL-BSHB200202002.htm [8] 邓勇军, 张一云. 用正电子湮没技术研究黄玉的辐照改色机理[J]. 核电子学与探测技术, 2004, 24(1): 62-66. https://www.cnki.com.cn/Article/CJFDTOTAL-HERE200401018.htmDeng Yongjun, Zhang Yiyun. Study on colorific mechanism of topaz after irradiated by positron annihilation technique. Nuclear Electronics & Detection Technology, 2004, 24(1): 62-66 https://www.cnki.com.cn/Article/CJFDTOTAL-HERE200401018.htm [9] 杨越, 单润华. 辐照技术研究[J]. 核动力工程, 1980, 3(4): 61-69. https://www.cnki.com.cn/Article/CJFDTOTAL-HDLG198004007.htmYang Yue, Shan Runhua. Irradiation technique research. Nuclear Power Engineering, 1980, 3(4): 61-69 https://www.cnki.com.cn/Article/CJFDTOTAL-HDLG198004007.htm [10] 张之华, 米向秒, 段世林, 等. CITP-Ⅱ产氚辐照装置的热工研究[J]. 核动力工程, 2013, 34(3): 140-143. https://www.cnki.com.cn/Article/CJFDTOTAL-HDLG201303034.htmZhang Zhihua, Mi Xiang-miao, Duan Shilin, et al. Thermal research of CITP-Ⅱ tritium production irradiation device. Nuclear Power Engineering, 2013, 34(3): 140-143 https://www.cnki.com.cn/Article/CJFDTOTAL-HDLG201303034.htm [11] 唐家鹏. Ansys Fluent 16.0超级学习手册[M]. 北京: 人民邮电出版社, 2016.Tang Jiapeng. Super study manual for Ansys Fluent 16.0. Beijing: Posts and Telecom Press, 2016 [12] 贝尔. 多孔介质流体动力学[M]. 北京: 中国建筑工业出版社, 1983.Bear J. Porous medium hydrodynamics. Beijing: China Building Industry Press, 1983 -
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