DEVICE AND PROCEDURE FOR THE INSPECTION OF AN EXTERNAL WRAPPING WALL OF A NUCLEAR REACTOR VESSEL IN THE AREA OF A THERMAL SHIELD SURROUNDING IT.

摘要

THE INVENTION REFERS TO A DEVICE FOR INSPECTING THE OUTER WALL OF A CONTAINER OF A REACTOR CORE (2) IN THE THERMAL SHIELDING REGION (4) THAT SURROUNDS IT. THE DEVICE INCLUDES AN ANNULAR RAIL (10) ATTACHED TO THE REACTOR CORE CONTAINER (2), A SLIDING TROLLEY (12) THAT IS MOUNTED TO RUN AROUND THE EXTERIOR OF THE RAIL. MOUNTED ON THE SLIDING TROLLEY (12) SO THAT IT CAN BE VERTICALLY MOVED, A MAST IS FOUND (16) TO WHICH A VERTICALLY SLIDING HEAD IS FIXED (18). ATTACHED TO THE HEAD IS AN ARM (20) THAT CAN BE INSERTED INSIDE THE HOLE BETWEEN THE EXTERNAL WALL OF THE REACTOR NUCLEUM CONTAINER (2) AND THE THERMAL SHIELD (4) AND SUPPORTS AN INSPECTION INSTRUMENT AT ITS MOST END.