核电站含缺陷压力容器的安全评定研究和应用

摘要

During nuclear power plant pressure vessel NDE inspection,some defects may be found.Ac-cording to design,fabrication,operation &maintenance information,it can estimate the vessel defect type and the probability of the defect extending via using the structure integrality assessment method.The detail method include the intensity analysis,and failure analysis diagram method,which can evaluate if the ves-sel satisfy operation,standard &management requirement.For those pressure vessels,which require shut down the unit to repair,it can provide the safety analysis assessment basis for preparing the disposal plan via defect assessment.%在对核电站压力容器进行无损检测过程中常常会发现缺陷。根据现有设计、制造、运行和检修资料，采用结构完整性评定方法，判断容器缺陷类型以及缺陷扩展可能性。具体评定方法包括强度分析评定和应用失效分析图法进行缺陷评定，用于判断含缺陷压力容器是否满足运行使用和相关规范及管理要求。对于那些需要停机修复的压力容器，通过缺陷评定为容器后续处理方案的制定，提供安全分析评定依据。