摘要
概率安全分析(PSA)技术作为一项成熟的核电厂安全评价技术,在核电厂的设计、运行、维修和技术改造等活动中都得到了广泛的应用,我国PSA工作起步于20世纪80年代,近些年得到了迅速的发展。核安全监管当局也鼓励各核电厂运用PSA和确定论相结合的方法,来进行电厂生产运行维修活动的安全评价和优化。中核核电运行管理有限公司PSA开发工作自秦山第一核电厂2001年开始至今已经有22年的时间,随后不断完善各机组PSA模型,目前秦山已完成了各机组的内部事件一、二级PSA开发和更新,并且完成了秦山第一核电厂和方家山核电厂火灾和内部水淹PSA、方家山核电厂乏池和地震PSA,秦山第二核电厂火灾和内部水淹也在开发过程中。PSA模型的完善为PSA应用打下了坚实的基础,另外电厂的安全评价中引入PSA环节并且建立了相应的管理程序。从而形成了一套风险指引型应用体系。中核核电运行管理有限公司PSA已经广泛应用在电厂的维修,运行等生产活动中。为保障电厂安全稳定运行和提高电厂运行效率发挥了重要的作用。
The probabilistic safety analysis(PSA)technology,as a mature safety evaluation technology for nuclear power plants,has been widely used in the design,operation,maintenance and technical alteration of nuclear power plants.The PSA work in China started in the 1980 s and has developed rapidly in recent years.In China,the regulatory body National Nuclear Safety Administration(NNSA)also encourages nuclear power plants to use the combination of PSA and deterministic approach to evaluate and optimize the safety of production,operation and maintenance activities of power plants.There are 9 units in operation at Qinshan site,which are technically supported by(China Nuclear Power Operation Management Co.,Ltd.(CNNO).The development of PSA by CNNO began in 2001.Since then,the PSA model of each unit has been continuously improved.All these lay a solid foundation for the application of PSA in CNNO.In addition,the PSA is introduced into the safety evaluation of power plants and corresponding management procedures are established.Thus,a set of risk-informed application systems have been formed for the use in plant maintenance,operation and other production activities.It plays an important role in ensuring the safe and stable operation of power plants and improving the operation efficiency of power plants.
作者
刘东林
LIU Donglin(Nuclear Power Operation Management Co.,Ltd.,CNNP,Haiyan,Zhejiang Prov.314300,China)
出处
《中国核电》
2024年第1期91-96,共6页
China Nuclear Power
