Primary Study on Core Concept Design and Safety Margin of CPR1000
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摘要: CPR1000压水堆核电站是中广核集团20多年来经过渐进式改进和自主创新形成的中国改进压水堆核电站。CPR1000的参考设计是岭澳II期核电站加改进设计。在未来的10～15年内,CPR1000将是中广核集团主要建设的核电站类型之一。CPR1000的初始堆芯设计采用什么样的装料方式和燃料循环方式是必须首先解决和确定的重要设计前提,这是整个核岛设计、安全分析核执照申请的核心和基础。基于大亚湾核电站和岭澳核电站多年的燃料管理经验和运行经验以及国外类似核电站运行和设计经验,并且综合考虑了初始堆芯的特点和难点,以及不同堆芯设计和燃料管理策略的特点,对CPR1000的初始堆芯进行了设计。通过初步研究,本文提出了CPR1000初始堆芯采用的燃料组件类型,分析CPR1000采用从首循环开始进行18个月换料过渡的堆芯设计技术方案,并对CPR1000首循环实施18换料进行了堆芯设计安全裕度初步分析与评估。Abstract: CRP1000 is the China PWR design based on step-by-step improvement and innovation by China Guangdong Nuclear Power Company（CGNPC） over 20 years.The reference design of CPR10000 is Ling’ao II plus some improvements.CPR1000 will be the main PWR to be built in China by CGNPC within the next 10-15 years.The prerequisite is to define the fuel loading pattern and the fuel management mode for the CPR1000 initial core design,which is the base for CPR1000 nuclear island design,safety analysis and licensing.This paper summarizes the CPR1000 initial core concept design,fuel management design and the safety evaluation based on Daya Bay and Ling’ao operation and fuel management experiences and international technology development.This paper proposes the fuel type to be used for CPR1000 initial core design,analyze the 18-month fuel cycle fuel,the management strategy and design,and conduct the preliminary safety evaluation for CPR1000.
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Key words:
- China Guangdong Nuclear Power Company(CGNPC) /
- CPR1000 /
- Core design /
- Safety evaluation
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