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真空 ›› 2026, Vol. 63 ›› Issue (5): 89-93.doi: 10.13385/j.cnki.vacuum.2026.05.13

• 真空冶金与热工 • 上一篇    下一篇

电子束炉炉壁射线屏蔽技术研究*

宋涛, 张柏诚, 姜正鹤, 张黎源   

  1. 核工业理化工程研究院,天津 300181
  • 收稿日期:2025-11-20 出版日期:2026-09-25 发布日期:2026-09-28
  • 作者简介:宋涛(1991-),男,河北衡水人,硕士,高级工程师。
  • 基金资助:
    *粒子输运与富集技术全国重点实验室基金项目(SYSJJ-22101)

Research on Radiation Shielding Technology for Electron Beam Furnace Wall

SONG Tao, ZHANG Baicheng, JIANG Zhenghe, ZHANG Liyuan   

  1. Institute of Physical and Chemical Engineering of Nuclear Industry, Tianjin 300181, China
  • Received:2025-11-20 Online:2026-09-25 Published:2026-09-28

摘要: 针对电子束炉在重熔过程中存在的X射线辐射问题,提出了一套适用于电子束炉炉壁射线屏蔽的方法。该方法首先根据电子束炉的受力情况进行力学刚度计算,得到壁厚S1;其次根据电子束炉因电子束轰击靶材产生的X射线进行屏蔽层计算,得到壁厚S2,并进行屏蔽结构设计;再选择上述S1和S2的较大值为设计壁厚,以满足刚度要求以及屏蔽层要求;最后,对设计的电子束炉进行了仿真与实验。结果表明,电子束炉最大应力89 MPa,最大位移2.5 mm,炉体周围半米处最大X射线剂量为0.8 μSv/h,满足设计要求。该方法设计的电子束炉可以满足刚度要求以及屏蔽要求,适合于电子束炉炉壁的设计与计算。

关键词: 电子束炉, 射线屏蔽, 刚度计算, X射线

Abstract: A set of method suitable for electron beam furnace wall radiation shielding was proposed to address the X-ray radiation problem during the remelting process of electron beam furnaces. This method first calculated the mechanical stiffness of the electron beam furnace based on its stress conditions to obtain the wall thickness S1. Secondly, it calculated the wall thickness S2 based on X-rays generated by electron beam bombardment of target material in electron beam furnace, and carried out shielding structure design. Next, the larger value of S1 and S2 was selected as the design wall thickness to meet the stiffness and shielding requirements. Finally, simulations and experiments were conducted on the designed electron beam furnace. The results showed that the maximum stress of the electron beam furnace is 89 MPa, the maximum displacement is 2.5 mm, and the maximum X-ray dose at a distance of 0.5 meters around the furnace body is 0.8 μSv/h, which meets the design requirements. The electron beam furnace designed by this method can meet the requirements of stiffness and shielding, and can meet the design requirements of the electron beam furnace.

Key words: electron beam furnace, radiation shielding, stiffness calculation, X-ray

中图分类号:  TB79

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