| 摘要 |
PURPOSE:To execute an inspection extending over the whole circumference of a weld line by providing a guide rail in a piping instrument room, and providing an inspecting truck loaded with a flaw detector, running along this guide rail. CONSTITUTION:A truck 10 is made to run along the guide rail 8 and moved to the vicinity of prescribed weld zone, and thereafter, a heat insulating material cover 43 in the lead-in part of the truck for inspection is removed by operating a manipulator 11. Subsequently, an inspecting truck 51 is made to run into a leading-in part 42 from the inside of its containing part 54, and next, an auxiliary truck 53 is moved along the outside circumference of a cooling pipe 4. In this state, when the auxiliary truck 53 is moving, or at its prescribed stop position, the flaw detecting inspection of a weld zone is executed by operating an ultrasonic flaw detector, a visual inspecting device and an illuminating device. After the inspection is ended, the auxiliary truck 53 is stored in a prescribed position, the truck 51 is returned to the inside of the containing part 54 from the leading-in part 42, and thereafter, the heat insulating material cover 43 is installed to the opening part of the lead-in part 42 by operating the manipulator 11. In this way, according to this inspecting device, the flaw detecting inspection can be executed extending over the whole circumference of pipe by running the auxiliary truck 53. |
