核电站循环水虹吸井出水口改造设计

Design for the Renovation of Circular Water Siphon Well Outlet in Nuclear Power Plant

大亚湾核电站的循环冷却水为海水 ,虹吸井出水口的水流从溢流堰跌落后产生了大量的小水滴和盐雾 ,造成电气设备严重腐蚀 ,同时水流跌落后产生的大量微黄色泡沫严重影响海域景观。为此 ,在模型试验的基础上提出了棱块体挡流堰改造方案 ,并采取了相应的优化措施。模拟试验结果显示 。

Seawater is used as the circulating cooling water in Daya Bay Nuclear Power Plant.The water flow of siphon well outlet from overflow weir falls off rapidly with drips and salt mists,causing serious corrosion to electric equipments.Meantime,a lot of tint yellow foams resulted from down pour destroy the landscape in seashore.For this reason a renovation design of building a prism shape of overfall weir to stop the water flow and optimal measures were proposed and adopted.Simulation experiment result shows that it is effective for eliminating salt mists and foams.