辐射防护通讯 ›› 2021, Vol. 41 ›› Issue (3): 10-15.

• 研究通报 • 上一篇    下一篇

余流对核电厂液态流出物排放的影响分析

方明豹, 孙纯建, 黄佳钰, 田琨   

  1. 国核浙能核能有限公司,浙江 杭州,310012
  • 收稿日期:2021-03-27 发布日期:2022-01-24
  • 作者简介:方明豹(1966—),男,2002年3月毕业于同济大学微电子材料专业,博士,高级工程师,主要从事核电项目开发、研究和管理工作。E-mail:mb_fang@sina.com

Impact Analysis for Residual Current on Liquid Effluent Diffusion from Nuclear Power Plant

Fang Mingbao, Sun Chunjian, Huang Jiayu, Tian Kun   

  1. State Nuclear Power Zheneng Nuclear Energy Co., Ltd., Hangzhou, Zhejiang, 310012
  • Received:2021-03-27 Published:2022-01-24

摘要: 本文以工程实例为背景,基于深度平均的平面二维数值模拟方法,对核电厂液态流出物在受纳水体中的输移扩散问题进行计算分析。计算潮位、流速及流向与实测水文测验资料吻合良好,可真实反映工程区域的水动力特性;在流场验证良好的基础上,分析余流变化对核素稀释过程的影响机制。结果表明,随着余流的增大,浓度场的影响范围逐步向余流方向偏移,对工程区浓度分布的影响显著,应在环境影响评价过程中予以关注。本文以工程实例为背景,基于深度平均的平面二维数值模拟方法,对核电厂液态流出物在受纳水体中的输移扩散问题进行计算分析。计算潮位、流速及流向与实测水文测验资料吻合良好,可真实反映工程区域的水动力特性;在流场验证良好的基础上,分析余流变化对核素稀释过程的影响机制。结果表明,随着余流的增大,浓度场的影响范围逐步向余流方向偏移,对工程区浓度分布的影响显著,应在环境影响评价过程中予以关注。

关键词: 核电厂, 液态流出物, 数值模拟, 浓度分布, 余流

Abstract: With an engineering example, we calculate and analyse the transport and diffusion of liquid effluent from nuclear power plants in the receiving water body, by a two-dimensional numerical simulation method based on depth averaging. The calculated tidal level, flow rate and flow direction are in good agreement with the measured hydrological test data, which truly reflect the hydrodynamic characteristics of the engineering area. Then, We analyze the impact mechanism of residual current on the nuclide dilution process. The results show that with the increase of residual current, the influence range of concentration field gradually shifts to the direction of residual current, which has a significant impact on the concentration distribution in the engineering area. It should be paid attention to in the environmental impact assessment process.

Key words: Nuclear power plant, Liquid effluent, Numerical simulation, Concentration distribution, Residual current

中图分类号: 

  • X822.7