摘要
反应堆压力容器是压水堆核电站最核心的、寿期内不可更换的设备。由于长期承载和主螺栓的旋入旋出,压力容器主螺孔容易产生螺纹损伤,需要进行针对性地修复。而对主螺孔的修复首先需要进行定位和原螺纹加工寻迹。本文针对不同需求,开展主螺孔的定位和寻迹技术研究,提出了高效可实施的工艺方法,重点介绍了光学测量方法、系统组成和偏差精度分析等工艺过程。本文基于M310堆型的压力容器的主螺孔开展研究,可以满足该类型核电站螺孔修复的实际需求。本文提出的技术方法可用于其他堆型核电厂压力容器以及电力、船舶和石化等行业大型容器类似问题的处理。
The reactor pressure vessel is the core equipment of pressurized water reactor nuclear power plant.Due to the long-term load and the main bolt screwed in and out,the main screw hole is easy to produce thread damage,which needs repair.The repair of the main screw hole needs to be firstly located and traced the original thread.In this paper,according to different needs,to carry out the main hole positioning and tracking technology research,put forward efficient,feasible process method.This paper is based on the main screw hole of M310 pressure vessel,which can meet the actual needs of screw hole repair of other type of nu⁃clear power plant.The technical method proposed in this paper can be used to deal with similar problems in other nuclear power plant pressure vessels and other large vessels in power,ship,petrochemical and other in⁃dustries.
作者
周建明
彭祥阳
路广遥
倪亮
奚琛
侯硕
Zhou Jianming;Peng Xiangyang;Lu Guangyao;Ni Liang;Xi Chen;Hou Shuo(China Nuclear Power Technology Research Institute,Shenzhen,Guangdong Prov.518000,China)
出处
《核安全》
2021年第5期88-92,共5页
Nuclear Safety
关键词
光学测量
反应堆压力容器
螺孔
定位寻迹
现场修复
optical measurement
reactor pressure vessel
screw hole
positioning and tracing
on-site repair
