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本文基于近年来对核电站高能管道断裂甩管及防护的研究分析,从系统分析与归纳核电厂高能管道防甩设计的总体思路出发,重点讨论对于一些小管径以及安全壳外不能应用LBB技术的高能管道:如果其破裂会对安全相关的构筑物、系统和部件(SSC)构成威胁,那么分析甩管与止挡乃至设置防甩约束件是必需的。本文按照相关规范要求,推导出高能管道甩击靶物简化的理论分析计算公式,通过高能管道甩击靶物的速度和甩击能量计算为甩击靶物设计分析提供输入;必要时需进行防甩约束设计吸收甩击能量以保护靶物。本文最后总结了核电站高能管道的防甩分析流程,该方法在核电站得到了应用。
In this paper, based on the research and analysis of the pipe breaking and protection of high-energy pipelines in nuclear power plants in recent years, systematically analyzing and summarizing the general idea of anti-rejection design of high-energy pipelines in nuclear power plants, we mainly focus on the LBB technology which can not be applied to some small pipe diameters and containment High-energy pipelines: If they are ruptured and pose a threat to safety-related structures, systems and components (SSCs), it is necessary to analyze pipe-throwing and stops and even tumble restraints. In this paper, according to the requirements of the relevant specifications, a simplified theoretical analysis and calculation formula of high-energy pipeline rejection target is deduced, and the input of the target design and analysis is provided through the calculation of the speed and the rejection energy of high-energy pipeline rejection target. If necessary, Shoulder restraint design absorbs energy to protect the target. Finally, this paper summarizes the anti-rejection analysis of high-energy pipelines in nuclear power plants. The method has been applied in nuclear power plants.