Application and Modification of On-Line Monitoring System for Containment Leakage in Qinshan Second Nuclear Power Plant

The on-line monitoring system for containment leakage,including the frame and the calculation model,used in Qinshan Second Nuclear Power Plant,was introduced.Different typical false alarms of the system,which were found during the using process,were analyzed in detail.The analysis is useful for judging and eliminating in time the false alarms when meeting the similar cases.The modification function of manual intervention and the implementation effect were introduced.The results show that,the false alarms can be eliminated as long as the exception data could be found and deleted in time,and this method can ensure the safe reliability of the nuclear power plant.