广西科学院学报2025，Vol.41Issue(1)：111-120,10.DOI:10.13657/j.cnki.gxkxyxb.20250429.010
核电站近区河流排涝对温排水扩散的影响研究
Study on the Influence of River Drainage in the Vicinity of Nu-clear Power Plant on the Diffusion of Thermal Discharge
摘要
Abstract
The river drainage near the thermal discharge area of nuclear power plant can significantly change the diffusion pattern of thermal discharge.It is necessary to accurately define the influence of river drainage near the nuclear power plant on the diffusion of thermal discharge.In this study,the mathematical model of thermal discharge diffusion in Tianwan nuclear power plant was established.On the basis of full verification,the diffusion range and law of thermal discharge in the river near the coastal nuclear power plant under differ-ent drainage flows were discussed in depth.The results show that the horizontal distribution characteristics of water temperature in winter in the study area are north-south zonal distribution,and the temperature gradient is about 0.9℃/km.On the vertical surface,due to the shallow water depth,the vertical mixing effect is strong,and the maximum vertical gradient is about 0.18℃/m.With the increase of the drainage flow of the Paidan River,the temperature rise area of 4℃and 3℃showed a decreasing trend,and the maximum reduc-tion area was 19.36 km2 and 17.37 km2(523.6 m3/s working condition),respectively.The reduction rate of the temperature rise area decreased from 0.05(km2·s)/m3 to 0.02 and 0.03(km2·s)/m3,respectively.The 2℃temperature rise area increases first and then decreases,and the temperature rise area reduction rate is 0.03(km2·s)/m3.The temperature rise area at 1℃showed a fluctuating increasing trend.From the per-spective of spatial distribution,the temperature rise areas of 3,2,1℃all extend northward,but the tempera-ture rise area of 4℃first expands northward and then shrinks southward.The maximum expansion is about 500 m,and the critical flow rate is 160 m3/s,which is about 31%of the maximum flow rate.关键词
温排水/滨海核电站/近区河流排涝/数值模拟/扩散规律Key words
thermal discharge/coastal nuclear power plant/near river drainage/numerical simulation/diffusion law分类
动力与电气工程引用本文复制引用
董啸天,林朱俊,朱文谨,程宇韬,魏萌萌..核电站近区河流排涝对温排水扩散的影响研究[J].广西科学院学报,2025,41(1):111-120,10.基金项目
江苏省自然资源发展专项资金(海洋科技创新)项目"核电站温排水对近海海洋生态系统影响研究"(JSZRHYKJ202008)资助. （海洋科技创新）
