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核电厂中,一些高温高压蒸汽管道在高温高压工况下存在较大幅度的晃动,管道常年不停歇的运行对整个管系产生严重影响并形成疲劳和破坏损伤。管系的安全关系到核电站的正常发电运转,其内部蒸汽的温度压力变化较大,当发生破坏或泄漏时,不仅影响核电站整个冷却循环系统功能的实现,还会给核电内其他系统带来影响,造成严重后果。核电站高温高压蒸汽管路数目众多,布置较为复杂,对管道进行安全性分析是保证管道安全的基础。因
In nuclear power plants, some high-temperature and high-pressure steam pipes have relatively large sloshing under high temperature and high pressure conditions. The non-stop operation of the pipes has a serious impact on the entire pipe system and causes fatigue and damage damage. The safety of the piping system is related to the normal power generation operation of the nuclear power station. The temperature and pressure of its internal steam vary greatly. When a damage or leakage occurs, it not only affects the function of the entire cooling circulation system of the nuclear power plant but also affects other systems in the nuclear power plant , Causing serious consequences. Nuclear power station high temperature and pressure steam pipe number, layout is more complex, the pipeline safety analysis is to ensure pipeline safety foundation. because