田湾核电站乏燃料离堆贮存方案研究

Study on Away-from-Reactor Storage of Spent Fuel from Tianwan Nuclear Power Plant

田湾核电站1、2号机组产生的乏燃料一直贮存在配套的在堆贮存水池内。按照卸料规划,到2016年,两台机组第9次换料大修后,将达到乏燃料水池存放上限。为此,必须尽快启动乏燃料离堆贮存工作,以确保在乏燃料水池饱和之前实现乏燃料外运,保证核电站的连续运行。本文依据我国核燃料后处理建设发展规划,结合我国压水堆乏燃料离堆贮存现状,综合考虑田湾核电站乏燃料后处理存在的问题,将湿法贮存方案与各类干法贮存方案进行技术经济比较之后确定了田湾核电站乏燃料离堆贮存项目的建设地点和最优化的工程方案。

Spent fuel generated from Units 1 and 2 of Tianwan Nuclear Power Plant have been stored in the storage pool at reactor. In accordance with the fuel discharging plan ,the spent fuel storage pool will be full after the ninth refueling outage by 2016. The away-from-reactor storage of spent fuel should be started as soon as possible to ensure that spent fuel could be transported out of reactor before the spent fuel pool is full ,and ensure the continuous operation of nuclear power plants. The article ,based on the construction plan of nuclear fuel reprocessing plant ,combined with the PWR spent fuel storage situation ,considering problems faced during the reprocessing of Tianwan NPP spent fuel ,compared dry storage solutions with wet storage from technical and economic aspects ,and determined the optimized storage solutions .