DISPOSITIF ET PROCEDE D'OBTURATION D'UN ORIFICE D'UNE ENVELOPPE DE FAISCEAU D'UN GENERATEUR DE VAPEUR D'UN REACTEUR NUCLEAIRE A EAU SOUS PRESSION

DISPOSITIF ET PROCEDE D'OBTURATION D'UN ORIFICE D'UNE ENVELOPPE DE FAISCEAU D'UN GENERATEUR DE VAPEUR D'UN REACTEUR NUCLEAIRE A EAU SOUS PRESSION

The device (20) has internal and external upper semi-flanges (27, 28) displaceable by a movable shaft (21) in rotation of 180 degree between a lower position with respect to internal and external lower semi-flanges (25, 26) to introduce the shaft in an external orifice of a cylindrical shaped pressu...

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Hauptverfasser: THEALLIER OLIVIER, DUBOIS ERIC, CATINOT JACQUES
Format: Patent
Sprache:fre
Schlagworte:
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
NUCLEAR REACTORS
PHYSICS
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creator THEALLIER OLIVIER
DUBOIS ERIC
CATINOT JACQUES
description The device (20) has internal and external upper semi-flanges (27, 28) displaceable by a movable shaft (21) in rotation of 180 degree between a lower position with respect to internal and external lower semi-flanges (25, 26) to introduce the shaft in an external orifice of a cylindrical shaped pressure boundary of an steam generator, and an internal orifice of an tube wrapper of the generator, and an upper position opposed to the lower semi-flanges. A tightening unit has a nut (22) to tighten the semi-flanges on circumferences on sides of the internal orifice for closing the internal orifice. Independent claims are also included for the following: (1) a method for closing an internal orifice of an tube wrapper of an steam generator of an pressurized water nuclear reactor using a internal orifice closing device (2) a tool for fixing and removing a internal orifice closing device.
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subjects NUCLEAR ENGINEERING
NUCLEAR PHYSICS
NUCLEAR REACTORS
PHYSICS
title DISPOSITIF ET PROCEDE D'OBTURATION D'UN ORIFICE D'UNE ENVELOPPE DE FAISCEAU D'UN GENERATEUR DE VAPEUR D'UN REACTEUR NUCLEAIRE A EAU SOUS PRESSION
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