Published September 23, 1994 | Version v1
Patent Metadata-only

Process and device for replacing a nuclear reactor vessel head adaptor

Creators

Description

The operation to replace an adaptor is performed from above the convex face of the vessel head after removing the control rod drives and the thermal sleeve. The adaptor is machined out by introducing an appropriate tool through the upper end of the adaptor. After extraction of the adaptor the replacing adaptor is introduced by cold shrink and then welded. 9 figs

Availability note (English)

Available from Institut National de la Propriete Industrielle, Paris (France).

Additional details

Additional titles

Original title (French)
Procede et dispositif de remplacement d'un adaptateur de traversee du couvercle de la cuve d'un reacteur nucleaire

Publishing Information

Imprint Pagination
27 p.
IPC:
Int. Cl. G21c17/017; G21c17/10; G21c13/036.
IPC
Int. Cl. G21c17/017; G21c17/10; G21c13/036.
Patent number
FR patent document 2702875/A/

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
26053122
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
MACHINING; PRESSURE VESSELS; PWR TYPE REACTORS; REMOTE HANDLING EQUIPMENT; REPAIR; SHRINKAGE; SLEEVES; THERMAL INSULATION; WELDED JOINTS
Descriptors DEC
CONTAINERS; ENRICHED URANIUM REACTORS; EQUIPMENT; JOINTS; MATERIALS HANDLING EQUIPMENT; POWER REACTORS; REACTORS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS

Optional Information

Secondary number(s)
FR patent application 9302955.