Anglaret, Gilbert; Audibert, Alain; Wolff, Rene.
Societe Franco-Americaine de Constructions Atomiques (FRAMATOME), 92 - Courbevoie (France)
Societe Franco-Americaine de Constructions Atomiques (FRAMATOME), 92 - Courbevoie (France)
AbstractAbstract
[en] This invention concerns a device capable of holding a straight piece of piping on a resistant structure by taking up the radial stresses applied to the piping by allowing slight axial movements due to dilatation. It forms part of a combined system for supporting radial outlets of steam pipes used in a nuclear power station
[fr]
L'invention se rapporte a un dispositif capable de maintenir un element droit de tuyauterie sur une structure resistante en reprenant les efforts radiaux appliques a la tuyauterie en autorisant de faibles deplacements axiaux dus a la dilatation. Il fait partie d'un systeme combine de supportage de sorties radiales de tuyauterie vapeur utilise dans une centrale nucleaireOriginal Title
Dispositif de maintien d'une tuyauterie
Primary Subject
Source
26 Jun 1981; 12 p; FR PATENT DOCUMENT 2472129/A/; Available from Institut National de la Propriete Industrielle, Paris (France)
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Patent
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Audibert, Alain
CEA, 75 - Paris (France)
CEA, 75 - Paris (France)
AbstractAbstract
[en] The present invention relates to removable plugs of prestressed concrete which can be fitted to every type of closed high pressure vessels and especially to the cylindrical vessels of nuclear reactors. The method involved permits the plug to be fitted to the vessel through both radial and axial prestress. In this purpose, said invention proposes removable prestress ribs fitted inside sheaths in the plug and extending throughout the upper part of the bearing surfaces of the plug, said ribs being regularly arranged along the generators of an hyperboloid of one sheet. Owing to this important feature, that is to say said inclination of the ribs in accordance with the generators of said hyperboloid, said rib inclination can be changed on requirement for each realization
[fr]
La presente invention se rapport aux couvercles demontables en beton precontraint qui peuvent s'adapter sur tous les types de recipients fermes a haute pression et en particulier aux caissons cylindriques de reacteurs nucleaires. La technique utilisee permet d'adapter le couvercle sur le recipient par une precontrainte a la fois radiale et axiale. A cet effet, l'invention propose des armatures de precontrainte demontables disposees dans des gaines du couvercle et prolongees dans la partie superieure du fut a travers les surfaces d'appui du couvercle, lesdites armatures etant regulierement disposees suivant les generatrices d'un hyperboloide a une nappe. Grace a cette caracteristique importante, a savoir l'inclinaison des armatures suivant les generatrices de l'hyperboloide a une nappe, il devient possible de modifier l'inclinaison de celles-ci en fonction des imperatifs particuliers de chaque realisationOriginal Title
Dispositif de fermeture d'un recipient en beton precontraint
Primary Subject
Source
11 Jan 1974; 8 p; FR PATENT DOCUMENT 2298745/A/; Available from Institut National de la Propriete Industrielle, Paris (France)
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Patent
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