压水反应堆压力容器顶盖的目视检查
摘要
针对国内电站顶盖目视检查中所遇到的诸多问题,对顶盖目视检查应重点关注的区域和范围进行了研究说明,提出了在检验实施前,需对检验人员进行专项培训,并对目视检验技术进行能力验证。分析了不同情况下硼结晶的形貌特点、颜色区别、以及漏点的位置分布情况,提出了利用压缩空气吹扫或真空吸尘器抽吸的方式对泄漏源的位置进行准确查找的方法,最后对发现裂纹后的处理给出了建议措施。
引文
[1]NRC Bulletin 2002-01,Reactor Pressure Vessel Head Degradation and Reactor Coolant Pressure Boundary Integrity,March 18,2002.
[2]Visual Examination for Leakage of PWR Reactor Head Penetrations:Revision 2of 1006296,Includes 2002Inspection Results and MRP Inspection Guidance,EPRI,Palo Alto,CA:2003.1007842.
[3]NRC Bulletin 2002-02,Reactor Pressure Vessel Head and Vessel Head Penetration Nozzle Inspection Programs,August 9,2002.
[4]ASME Boiler and Pressure Vessel Code Case N-729-1,Section XI,Alternative Examination Requirements for PWR Reactor Vessel Upper Heads With Nozzles Having Pressure-Retaining Partial-Penetration Welds,March 28,2006.
[5]ASME Boiler and Pressure Vessel Code,Section XI,Rules for Inservice Inspection of Nuclear Plant Components,1998Edition through2000Addenda.
[2]Visual Examination for Leakage of PWR Reactor Head Penetrations:Revision 2of 1006296,Includes 2002Inspection Results and MRP Inspection Guidance,EPRI,Palo Alto,CA:2003.1007842.
[3]NRC Bulletin 2002-02,Reactor Pressure Vessel Head and Vessel Head Penetration Nozzle Inspection Programs,August 9,2002.
[4]ASME Boiler and Pressure Vessel Code Case N-729-1,Section XI,Alternative Examination Requirements for PWR Reactor Vessel Upper Heads With Nozzles Having Pressure-Retaining Partial-Penetration Welds,March 28,2006.
[5]ASME Boiler and Pressure Vessel Code,Section XI,Rules for Inservice Inspection of Nuclear Plant Components,1998Edition through2000Addenda.