浅析华龙一号严重事故压力变送器选型与鉴定

Discussion on Model Selection and Qualification of Transmitters under Severe Accident in HPR1000

根据HAF102-2004的要求,核电站设计中应考虑对于严重事故的预防及缓解设置,而严重事故用仪表的可用性是实现严重事故管理策略要求的先决条件。为满足国内三代核电站华龙一号堆型提出的针对严重事故鉴定的新要求,结合福清5、6号项目严重事故用压力、差压变送器的选型设计,梳理了变送器选型流程,并就严重事故温度、压力鉴定曲线的包络性分析进行了重点探讨。经分析,福清5、6号项目所用严重事故用压力、差压变送器能够满足该项目严重事故环境条件和技术要求。

According to the related requirement in HAF102-2004,for the availability of instruments is the precondition of severe accident management strategy,the precaution and relief for severe accident should be taken in account during the design of nuclear plant.To meet the new-proposed qualification requirements of HPR1000,based on the design and model selection actuality of severe accident used transmitters in Fu Qing 5,6 plants,the process of model selection is presented.In addition,detailed analysis on spreadability of the severe accident qualification curves are made,including temperature and pressure condition.In conclusion,the severe accident used transmitters selected for Fu Qing 5,6 plants can meet the severe accident ambient conditions and technical requirements.