IN-REACTOR WORK SYSTEM AND IN-REACTOR WORK METHOD

IN-REACTOR WORK SYSTEM AND IN-REACTOR WORK METHOD

According to an embodiment, an in-reactor operation system which is provided with a crack detection vehicle that moves in a circumferential direction along an outer surface of a shroud disposed in a reactor pressure vessel with the axis vertical, an inspection/check sensor that is mounted on the cra...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: YUGUCHI YASUHIRO, TOGASAWA YUTAKA, MATSUZAKI KENJI, SHIMAMURA MITSUAKI, HOZUMI HISASHI
Format: Patent
Sprache:eng
Schlagworte:
DECONTAMINATION ARRANGEMENTS THEREFOR
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
NUCLEAR REACTORS
PHYSICS
PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT
TREATING RADIOACTIVELY CONTAMINATED MATERIAL
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Beschreibung
Zusammenfassung:According to an embodiment, an in-reactor operation system which is provided with a crack detection vehicle that moves in a circumferential direction along an outer surface of a shroud disposed in a reactor pressure vessel with the axis vertical, an inspection/check sensor that is mounted on the crack detection vehicle and performs an operation with respect to the shroud, a vehicle positioning mast for setting an initial position of the crack detection vehicle on the shroud, a vehicle fixation mechanism for attaching and detaching the crack detection vehicle to and from the vehicle positioning mast, and a conveyance vehicle for conveying the vehicle positioning mast on which the crack detection vehicle is mounted into the reactor pressure vessel.