摘要
基于堆内固定式探测器的在线监测系统CNFM已用于我国“华龙一号”等第三代核电站,可以在线连续对燃料棒线功率密度(LPD)和偏离泡核沸腾比(DNBR)进行监测和预警,提高了反应堆的运行安全。以往电站采用的是基于堆内可移动式探测器的LSS在线监测系统,基于此系统的一些堆芯分析方法不再适用,另外第三代核电站在堆芯分析及运行管理方面也提出了新的需求,为此CNFM系统开发了一些辅助运行支持功能,集成了电站以往需要独立开展的运行操作。由于实时和大量的实测数据支持,运行支持功能的计算方法相对传统的方法有所改进,部分功能弥补了传统电站不具备的计算能力。系统部分运行支持功能已应用于电站,后续将持续进行优化和推广,助力电站运行分析的智能化,提高运行的决策能力。
The on-line core monitoring system CNFM based on in-core fixed detectors is used on the generation Ⅲ pressurized water reactor of China,such as HPR1000.This system can monitor and alert the parameters of linear power density(LPD)and departure from nucleate boiling ratio(DNBR),keeping reactor safer.Traditional reactor on-line core monitoring system LSS is based on removable detectors,thus many core analysis and operation plans should be changed.On the other hand the generation Ⅲ PWRs have many new analysis requirements.So some operation support models in CNFM are developed,assembling those operations which are independent in the usual reactor.With real-time and enough data,calculating ways of those models are different from usual models.Some models have never seen in nowadays reactor.CNFM is already used in the reactor and will be optimized and popularized later,hoping intellectualize core operation analysis and improve the ability of core management.
作者
谢运利
刘琨
陈长
周代杰
XIE Yun-li;LIU Kun;CHEN Zhang;ZHOU Dai-jie(Science and Technology on Reactor System Design Technology Laboratory,Nuclear Power Institute of China,Chengdu,Sichuan Prov.610041,China)
出处
《中国核电》
2023年第1期142-145,共4页
China Nuclear Power
