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清华大学学报(自然科学版)  2022, Vol. 62 Issue (10): 1668-1674    DOI: 10.16511/j.cnki.qhdxxb.2022.21.018
  核能与新能源技术 本期目录 | 过刊浏览 | 高级检索 |
HTR-PM600新燃料贮存容器跌落冲击安全性能
郝予琛, 王金华, 王海涛, 刘兵, 李悦
清华大学 核能与新能源技术研究院, 先进核能技术协同创新中心, 先进反应堆工程与安全教育部重点实验室, 北京 100084
Safety performance of HTR-PM600 fresh fuel storage canister under drop impact
HAO Yuchen, WANG Jinhua, WANG Haitao, LIU Bing, LI Yue
Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
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摘要 贮存容器是核电厂燃料贮存系统的关键设备之一,在提升过程中可能因为机械故障直接跌落至地面导致容器受损与燃料泄露,因此新燃料贮存容器在设计阶段必须进行跌落安全测试。该文以HTR-PM600新燃料贮存容器为研究对象,采用FEM-DEM耦合方法模拟内部球床运动规律,计算燃料贮存容器在事故跌落工况下可能产生的最大破坏。计算结果表明:新燃料贮存容器在15 m竖直跌落工况下包容边界不会发生破损,楼板不会被穿透,该燃料容器结构设计满足安全要求;冲击载荷下球床压力使得薄壁容器侧板产生最大35.26 mm径向膨胀位移量;燃料元件与包容薄板最大瞬时相互作用力为6.295 kN,远小于燃料元件破坏强度。
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作者相关文章
郝予琛
王金华
王海涛
刘兵
李悦
关键词 HTR-PM600新燃料贮存容器球床自由跌落安全分析    
Abstract:Fresh fuel storage container is key equipment in the fuel storage system in nuclear power plants.During hoisting,it may fall directly to the ground,thus damaging the canister and leaking the fuel element due to mechanical failure.Therefore,the safety performance of a fresh fuel storage container must be verified under the drop impact.In this paper,the HTR-PM600 fresh fuel storage canister is selected as the objective,and the FEM-DEM coupling method is used to simulate the movement law of the pebble bed.Subsequently,the maximum damage to the fuel storage canister under an accidental drop impact is calculated.The result shows that the containment boundary of the new fuel storage canister will not be destroyed under the 15-m drop condition,and the floor will not be penetrated;thus,the structural design meets the safety requirements.Under impact loading,the side plate of the thin-wall canister has a 35.26-mm expansion in the radial direction due to the interface force from the pebble bed.The maximum interaction force between the fuel element and the containment boundary is 6.295 kN,far less than the crush strength of the HTR-PM fuel element.
Key wordsHTR-PM600    fresh fuel storage canister    pebble bed    free drop    safety analysis
收稿日期: 2022-02-23      出版日期: 2022-09-03
基金资助:王金华,研究员,E-mail:wangjinhua@tsinghua.edu.cn;李悦,副研究员,E-mail:lyue@tsinghua.edu.cn
引用本文:   
郝予琛, 王金华, 王海涛, 刘兵, 李悦. HTR-PM600新燃料贮存容器跌落冲击安全性能[J]. 清华大学学报(自然科学版), 2022, 62(10): 1668-1674.
HAO Yuchen, WANG Jinhua, WANG Haitao, LIU Bing, LI Yue. Safety performance of HTR-PM600 fresh fuel storage canister under drop impact. Journal of Tsinghua University(Science and Technology), 2022, 62(10): 1668-1674.
链接本文:  
http://jst.tsinghuajournals.com/CN/10.16511/j.cnki.qhdxxb.2022.21.018  或          http://jst.tsinghuajournals.com/CN/Y2022/V62/I10/1668
  
  
  
  
  
  
  
  
  
  
  
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