重水堆核电机组空气中的氚监测系统运行经验

Discussion on the Operation Experience of Tritium Monitor System in the Air of CANDU Units

重水堆核电(CANDU)机组中空气中的氚监测系统作为机组重要系统,在电站运行、辐射防护、人员剂量控制、机组安全方面发挥着不可替代的作用。随着CANDU机组服役时间的增长,原系统功能下降,不能完全满足现场生产需要;经过公司重新规划后对原系统进行了整体升级,目前,新系统功能良好。但是,由于国内缺乏大型电站测氚布局的经验,前期设计过程中存在一些难点痛点,亟待解决。随着该系统的投用,维修部门通过自主研发专利,开发专用工具,开发软著,对投用后的系统功能进行完善,旨在将系统的功能最大化。

The tritium monitor system in the air of CANDU units is an important system in power statiem operation,radiation protection,personnel dose control and unit safety.With the increase of the service time of the units,the function of the original system is not so good.After the permit of the company,the original system has been upgraded as a whole.At present,the new system has a good function.However,due to the lack of domestic experience in tritium measurement layout of large-scale power plants,there are some difficulties in the early design process,which need to be solved urgently.With the system being put into use,the maintenance department perfected the function of the system after being put into operation by R&D patent,special tools and software copyright,aiming at maximizing the function of the system.