摘要
反应堆压力容器螺栓孔是压力容器顶盖设备的重要组成部分。由于每次换料大修均需通过主螺栓的旋出和旋入来开关反应堆压力容器顶盖,故主螺栓孔容易产生接触损伤。针对此问题,开发了一套螺栓孔内表面视频扫查装置,介绍了该装置的研制方案和系统构成,并对其进行了功能测试,对压力容器的螺栓孔进行检查,测试结果表明,该装置可以在压力容器法兰表面绕中心轴周向行走,运动准确,可靠性好,采集的视频图像清晰,畸变率低,满足使用需求。同时,该套视频扫查装置集成程度高,操作简单,兼具手动及自动模式,可显著降低现场工作人员承受的辐射剂量,提高在役检查的效率。
The bolt holes of the reactor pressure vessel are an important component of the pressure vessel head equipment.Due to the fact that each major refueling overhaul requires the opening and closing of the top cover of the reactor pressure vessel through the screwing out and screwing in of the main bolts,the main bolt holes of the pressure vessel are prone to contact damage.A video scanning device for the inner surface of threaded holes was developed to address this issue.The development plan and system composition of the device were introduced,inspection of holes of pressure uessels and functional testing was conducted on the device.The test results showed that the device can walk around the central axis on the flange surface of pressure vessels had accurate movement,good reliability,clear and visible captured video images,low distortion rate,and met the usage requirements.At the same time,the video scanning device had a high degree of integration,simple operation,and both manual and automatic modes,which can significantly reduce the radiation dose borne by on-site workers and improve the efficiency of in-service inspections.
作者
马思敏
张洋
沈绍宾
吴健荣
马官兵
MA Simin;ZHANG Yang;SHEN Shaobin;WU Jianrong;MA Guanbing(CGN Inspection Technology Co.,Ltd.,Suzhou 215000,China)
出处
《无损检测》
CAS
2024年第6期73-76,共4页
Nondestructive Testing
