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机构地区:[1]中国核动力研究设计院核反应堆系统设计技术重点实验室,成都610041
出 处:《机械工程师》2016年第11期214-216,共3页Mechanical Engineer
摘 要:主蒸汽管是反应堆冷却剂系统最大的外接管道,文中对其对系统静力(热膨胀)和动力(LOCA和地震)分析的影响进行分析。对于两环路核电站,主蒸汽管分别布置于两个环路的相反侧。对蒸汽发生器支承在热态条件热膨胀位移具有相反的作用,影响支承间隙的调整工作。在动力分析中主蒸汽管对蒸汽发生器具有稳定作用,但也在地震分析时引入了较高位置的较大地震激励输入。主蒸汽管对主系统动力分析具有比较复杂的影响。The primary stream pipes are the largest external pipes of the reactor coolant system. This paper studies the influence of the primary stream pipes on system static (thermal-expansion) and dynamic (LOCA and seismic) analysis. For the two-loop nuclear power station, the primary stream pipes are respectively arranged in different sides for two loops. So they make reverse effect on the thermal expansion displacements of the steam generator supports of two loops in the thermal state, and will affect the follow-up adjustment of the support gaps. In dynamic analysis, the primary stream pipes have stability effect on steam generators. But in seismic analyses, they are subjected to larger seismic excitation input from higher positions of the civil structures. So functions of the primary stream pipes are complicated in dynamic analysis.
分 类 号:TL329[核科学技术—核技术及应用]
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