Scanner Apparatus for Automatic Inspection of Turbine Blade Root of Power Plant

摘要

The present invention relates to a flaw detection device for the non-destructive inspection of the root portion of the steam turbine blade to check the abnormality of the blade root of the steam turbine installed in a nuclear power plant or thermal power plant, the probe body is attached to the turbine body without the need for rotation of the turbine In addition to performing inspections by rotating itself, inspections can be carried out at a constant speed to improve the reliability of the inspections and innovatively reduce the size of the system so that each worker can carry and attach the equipment. The body 430 is provided with a magnetic wheel 410 and a drive motor 490, a reducer 495, and a side support 420, which are magnetically attached to the turbine rotor 100 of the steam turbine so as to be moved to minimize the movement. The head fixed handle 440 and the ultrasonic probe while being connected to the body 430 via the support frame 431 Consists of a holder body 455 having a (465), the holder body 455 is moved along the transducer support slide 470, the transducer height adjuster 450 is installed on the upper and the ultrasonic transducer ( A transducer support 460 holding 465 and a contact medium discharge port 480 through which a contact medium is supplied through a hose 461 from the outside are provided.