- On-line X-ray inspection apparatus of end closure weld of highly radioactive nuclear fuel rod

摘要

The present invention relates to an X-ray on-line inspection apparatus for high-radiation fuel-sealed welds, and its purpose is to provide high-performance X-ray perspective inspection technology using a microfocus X-ray generator with a movable focal size of 10 μm or less. Non-destructive inspection of nuclear fuel sealed seal welded parts with radioactive fuel, improved inspection effect, and high radioactive fuel sealed welds to verify nuclear fuel integrity and improve reliability in parallel with existing inspection methods X-ray online It is to provide an inspection apparatus.;The present invention provides a microfocus X-ray generator having a focal point of 10 μm or less, an X-ray generation control unit connected to the microfocus X-ray generator and controlling X-rays, and the microfocus X-ray A transfer unit mounted with a generator and linearly moving the microfocus X-ray generator up and down; a rotating unit for rotating the nuclear fuel rod installed and mounted to be positioned above the transfer unit; a control unit controlling the rotating unit and the transfer unit; and the nuclear fuel rod A radioactive shield for shielding the radiation emitted from the X-ray generator, an X-ray image conversion unit installed on the nuclear fuel rod so as to detect X-rays generated by the microfocus X-ray generator and transmitted through the welding portion of the nuclear fuel rod, An X-ray image conversion control unit for controlling an X-ray image conversion unit, a camera integrated into the X-ray image conversion unit, and the microfocus X-ray generation The transfer unit, the rotating unit, the X-ray image converting unit, the X-ray shielding cabinet in which the camera is installed therein, and the image obtained from the camera are transmitted through the X-ray image converting control unit installed outside the X-ray shielding cabinet. B / W monitor and image processing unit, and a VGA monitor that displays the image transmitted to the image processing unit in real time to provide a high-frequency fuel-sealed weld X-ray online inspection device that can inspect the fuel-sealed weld in real time. Is in.