辐射防护 ›› 2026, Vol. 46 ›› Issue (2): 150-155.

• 辐射监测 • 上一篇    下一篇

某核燃料元件设施烟囱流出物取样管嘴的传输特性研究

杨屹1,2,3, 张艳婷1,2,3, 马弢1,2,3, 张富国1,2,3, 商洁1,2,3   

  1. 1.中国辐射防护研究院,太原 030006;
    2.辐射安全与防护山西省重点实验室,太原 030006;
    3.中核集团辐射防护技术重点实验室,太原 030006
  • 收稿日期:2025-12-23 发布日期:2026-04-22
  • 作者简介:杨屹(1989—),男,2014年毕业于哈尔滨工程大学辐射防护及环境保护专业,获硕士学位,副研究员。E-mail: yangyi_cirpcam@foxmail.com

Experimental study on the transmission characteristics of stack effluent sampling nozzles in nuclear fuel element facilities

YANG Yi1,2,3, ZHANG Yanting1,2,3, MA Tao1,2,3, ZHANG Fuguo1,2,3, SHANG Jie1,2,3   

  1. 1. China Institute for Radiation Protection, Taiyuan 030006;
    2. Key Laboratory of Radiation Safety and Protection in Shanxi Province, Taiyuan 030006;
    3. Key Laboratory of Radiation Protection Technology of China National Nuclear Corporation, Taiyuan 030006
  • Received:2025-12-23 Published:2026-04-22

摘要: 针对某烟囱流出物取样管嘴颗粒传输特性有待量化评估的问题,依据《核设施烟囱和管道中放射性物质的取样》(ISO 2889:2023)标准设计了一种遮罩式取样管嘴,并建立了传输比测试方法,开展了实验研究。结果表明,在设计流量 100 L/min 和自由流速 8.0~12.0 m/s 条件下,取样管嘴传输比保持在 1.00~1.10 范围内,满足标准推荐区间0.80~1.30;实验结果与理论计算总体一致,相对误差小于 10%。研究表明,该取样管嘴在设计工况下能够维持稳定的颗粒传输特性,满足标准要求。

关键词: 遮罩式取样管嘴, 传输比, 气溶胶, 粒径, 流出物

Abstract: To enable quantitative characterization of particle transport performance in stack effluent sampling nozzles, a shrouded sampling nozzle was designed in compliance with ISO 2889,"Sampling of airborne radioactive materials from stacks and ventilation ducts of nuclear facilities",and a transport ratio testing method was developed, and experimentally validated. Results show that at the design sampling flow rate of 100 L/min and free-stream velocities ranging from 8.0 to 12.0 m/s, the transport ratio remained within 1.00 to 1.10, meeting the ISO-recommended range of 0.80 to 1.30. Good agreement was observed between experimental data and theoretical predictions, with relative errors below 10%. These results indicate that the proposed nozzle exhibits stable particle transport behavior under the target operating conditions, fully complying with the acceptance criteria.

Key words: shrouded sampling nozzle, transport ratio, aerosol, particle size, stack effluent

中图分类号: 

  • TL83