FLAW DETECTOR OF REACTOR PRESSURE VESSEL DRUM FLANGE PART

PURPOSE:To remotely inspect the ligament of the screw hole of a drum flange part in a reactor well with filled water and the welded part between a drum flange part and a drum part. CONSTITUTION:In a flaw detector 11 of a reactor pressure vessel drum flange part for inspecting the ligament of a screw...

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Bibliographic Details
Main Authors SHIGA SHIGENORI, MATSUNAGA YUKIO, TAMURA MITSURU, KOBAYASHI KOJI, ONO MITSUO, KOYAMA KUNIO, HOZUMI SEISUKE
Format Patent
LanguageEnglish
Published 28.07.1995
Edition6
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
NUCLEAR REACTORS
PHYSICS
TESTING
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Summary:PURPOSE:To remotely inspect the ligament of the screw hole of a drum flange part in a reactor well with filled water and the welded part between a drum flange part and a drum part. CONSTITUTION:In a flaw detector 11 of a reactor pressure vessel drum flange part for inspecting the ligament of a screw hole 4 of the stud bolt of a drum flange 2 of a reactor pressure vessel and the welded part between a drum flange and a pressure vessel drum part, a running roller 22 and a clamp roller 24 are provided at the lower part of a traveling stand 16 seated on the upper surface of the drum flange, a hole core detection sensor 30 is provided at the lower part of the traveling stand 16, a rotary case 32 which can travel in the radius direction of the traveling stand 16 is provided, and at the same time a probe 33 for inspecting the ligament of the screw hole 4 and the welded part between the drum flange 2 and the drum part is provided at the rotary case 32.
Bibliography:Application Number: JP19930333407