METHOD FOR REPAIRING REACTOR CORE AND CLAMP THEREFOR

METHOD FOR REPAIRING REACTOR CORE AND CLAMP THEREFOR

PURPOSE: To repair a shroud having a crack in its top guide supporting ring with ease and certainty by disposing a plurality of clamps along the outer side of the shroud and joining the top guide supporting ring with upper and lower shroud walls. CONSTITUTION: A clamp 50 for repairing a shroud works...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ROBAATO UIRIAMU HOITSUTORINGU, JIEEMUZU EDOWAADO CHIYAANREI, BARII HARU KOEPUKE
Format: Patent
Sprache:eng
Schlagworte:
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
NUCLEAR REACTORS
PHYSICS
REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION
TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
TECHNICAL SUBJECTS COVERED BY FORMER USPC
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:PURPOSE: To repair a shroud having a crack in its top guide supporting ring with ease and certainty by disposing a plurality of clamps along the outer side of the shroud and joining the top guide supporting ring with upper and lower shroud walls. CONSTITUTION: A clamp 50 for repairing a shroud works as a structural replacement for welding spots W1 and W2 which have a fear of being degraded by having a crack C in the top guide supporting ring. The clamp 50 has a strong bracket 54 and it is mounted not only to the upper shroud wall 18b by a pair of upper bolts 56 but also to the lower shroud wall 18d by a pair of lower bolts 66. The upper and lower bolts 56, 66 receive a tension by respective nuts 62, 68 and the nuts 62, 68 are fixed at respective positions to which a tension is given by nut fasteners 64, said nut fasteners being temporarily welded to shaft portions of the bolts 56, 66.