某放射性废金属熔炼炉接受式排风罩优化研究

辐射防护 ›› 2022, Vol. 42 ›› Issue (4): 326-332.

某放射性废金属熔炼炉接受式排风罩优化研究

吴庆东¹, 张贻良², 曾灌², 薛向明¹, 古晓娜¹, 段宇建¹, 刘沛瑶¹, 战景明¹

1.中国辐射防护研究院,太原 030006;
2.湖南核工业宏华机械有限公司,湖南衡阳 421002

收稿日期:2021-09-13 出版日期:2022-07-20 发布日期:2022-08-15
通讯作者: 战景明。E-mail:zhanjingming@163.com
作者简介:吴庆东(1988—),男,2010年本科毕业于中北大学环境工程专业,2021年硕士毕业于中国辐射防护研究院劳动卫生与环境卫生学专业,工程师。E-mail:624482701@qq.com
基金资助:
中国辐射防护研究院青年科研基金项目资助(YQ20000204)。

Research on the optimization of the receiving exhaust hood of a smelting furnace for radioactive scrap metal

WU Qingdong¹, ZHANG Yiliang², ZENG Guan², XUE Xiangming¹, GU Xiaona¹, DUAN Yujian¹, LIU Peiyao¹, ZHAN Jingming¹

1. China Institute for Radiation Protection, Taiyuan 030006;
2. Hunan Nuclear industry Honghua Machinery Co. Ltd., Hunan Hengyang 421000

Received:2021-09-13 Online:2022-07-20 Published:2022-08-15

摘要/Abstract

摘要： 为有效收集核设施废金属在回炉熔炼过程中产生的放射性气溶胶,选取某放射性废金属熔炼炉为研究对象,采用Fluent数值模拟方法模拟不同高度、不同罩口尺寸、干扰风等因素对排风罩的影响。结果表明熔炼炉口直径为0.5 m、0.3 m/s的横风、排风罩高度为1.5 m,优化后直径D=1.4 m的圆形罩,可以有效排除熔炼炉产生的放射性气溶胶。使用CFD数值模拟方法优化后的排风罩与理论计算设计相比,排风罩直径减少了0.84 m,风量减少了0.616 m³/s,可为熔炼炉排风罩的设计提供参考和借鉴。

关键词: 熔炼去污, 热射流, 理论计算, 数值模拟, 局部排风

Abstract: Purpose: In order to effectively collect radioactive aerosols generated during the re-smelting process of scrap metal in nuclear facilities, and to protect the health of workers, we conducted a research on the optimization of the receiving exhaust hood. Method: A certain radioactive scrap metal smelting furnace was selected as the research object. We established a model, divided the grid, and finally used the Fluent numerical simulation method to simulate the influence of factors such as different heights, different hood sizes, and interference winds on the exhaust hood. Results: The smelting furnace mouth diameter is 0.5 m, there is a cross-wind of 0.3 m/s, and the height of the exhaust hood is 1.5 m. The optimized exhaust hood is a circular hood with a diameter of D=1.4 m, which can effectively eliminate the radioactive aerosol produced by smelting furnace. Conclusion: Compared with the theoretical calculation design, the exhaust hood optimized by the CFD numerical simulation method has reduced the diameter of the exhaust hood by 0.84 m and the air volume by 0.616 m³/s, which saves space and energy. It can provide reference for the design of smelting furnace exhaust hood.

Key words: smelting decontamination, thermal jet, theoretical calculation, numerical simulation, local exhaust

中图分类号:

TL75+2

吴庆东, 张贻良, 曾灌, 薛向明, 古晓娜, 段宇建, 刘沛瑶, 战景明. 某放射性废金属熔炼炉接受式排风罩优化研究[J]. 辐射防护, 2022, 42(4): 326-332.

WU Qingdong, ZHANG Yiliang, ZENG Guan, XUE Xiangming, GU Xiaona, DUAN Yujian, LIU Peiyao, ZHAN Jingming. Research on the optimization of the receiving exhaust hood of a smelting furnace for radioactive scrap metal[J]. RADIATION PROTECTION, 2022, 42(4): 326-332.

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