三代核电堆芯补水箱制造中不符合项及处理意见
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摘要
堆芯补水箱是带有半球形上下封头的立式圆柱形碳钢容器并内衬不锈钢。在核电厂正常运行期间,堆芯补水箱充满硼酸水,其压力通过冷管段压力平衡管线维持与反应堆冷却系统相同的压力。堆芯补水箱是我国某三代核电项目非能动冷却系统的重要部件之一,用来紧急推出堆芯余热排出功能。首批堆芯补水箱在制造过程中存在较多不符合项,本文主要分析其中不符合项的产生原因及处理方法,以减少和避免制造中不符合项的产生,实现堆芯补水箱制造的改进及提高。
The core makeup tank(CMT) is a vertical cylindrical carbon steel container with hemispherical upper and lower heads surfaced with stainless steel lining. During the normal operation of the nuclear power plant, the CMT is filled with boric acid water. Its pressure is maintained the same as that of the reactor cooling system through the pressure balance pipeline in the cooling section. The CMT is one of the most important components of the passive core cooling system(PXS) and provides emergency core decay heat removal which belongs to a third generation of nuclear power project. There were many non-conformance items need discussing in the manufacturing process of the first CMTSs. This paper mainly analyzes the causes and treatment methods of the non-conformance items in order to reduce and avoid the production of non-conformance items, and achieve the improvement and improvement of the CMTS manufacturing
The core makeup tank(CMT) is a vertical cylindrical carbon steel container with hemispherical upper and lower heads surfaced with stainless steel lining. During the normal operation of the nuclear power plant, the CMT is filled with boric acid water. Its pressure is maintained the same as that of the reactor cooling system through the pressure balance pipeline in the cooling section. The CMT is one of the most important components of the passive core cooling system(PXS) and provides emergency core decay heat removal which belongs to a third generation of nuclear power project. There were many non-conformance items need discussing in the manufacturing process of the first CMTSs. This paper mainly analyzes the causes and treatment methods of the non-conformance items in order to reduce and avoid the production of non-conformance items, and achieve the improvement and improvement of the CMTS manufacturing
引文
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[2]上海发电设备成套设计研究院.压水堆核电站核岛主设备材料和焊接[M].上海:上海科学技术文献出版社,2009.
[3]曾志新,吕明.机械制造技术基础[M].武汉:武汉理工大学出版社,2001.
[4]The American Society of Mechanical Engineers.B&PV Code,ASME 1998 Edition with 1999 and 2000 Addenda[S].New York:ASME,2000.
[5]方键.机械结构设计[M].北京:化学工业出版社,2005.
[6]濮良贵,纪名刚.机械设计[M].北京:高等教育出版社,2000.
[7]国家环境保护总局.民用核安全设备焊工焊接操作工资格管理规定[S].北京:国家环境保护总局,2007.
[8]American Society for Testing Materials.ASTM D5144 Use of protective coating standards in nuclear power[S].West Conshohocken:ASTM,2009.
[9]American Society for Testing Materials.Qualification of coating applicators for application of coatings to steel surfaces ASTM D4228[S].West Conshohocken:ASTM,2006.
[10]American Society for Testing Materials.ASTM D4537 Standard guide for establishing procedures to qualify and certify personnel performing coating and lining work inspection in nuclear facilities[S].West Conshohocken:ASTM,2012.
[11]张文钺.焊接传热学[M].北京:机械工业出版社,1989.