Enhanced reverse buckling rupture disc

Details Enhanced reverse buckling rupture disc Enhanced reverse buckling rupture disc

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 17/16 (2006.01)

Patent

CA 2328834

The disc is defined by an annular flat flange region (12), a concave-convex disc dome region (16) and a transition region (14). One or more deformations (18) may be formed at the apex of the disc dome region for weakening the disc to the point that incidental damage to the disc will not weaken the disk any further, thereby ensuring that the disc will reverse at a certain pressure, and no lower. The disc has irregular transition regions (20) at thebase and a partial circular groove (30). The irregular transition region of the disc cooperates with a shear enhancing means such as a protrusion (22) or notch (23) formed in a support ring (24) or disc holder (27) disposed downstream of the disc. A back pr essure support means (29) is included. An ungrooved region (32) of the transition region acts as a hinge holding the ruptured disc dome.

Disque qui est défini par une zone bride (12) annulaire plate, une zone dôme (16) de disque concave-convexe et une zone de transition (14). Une ou plusieurs déformations (18) peuvent être formées au sommet de la zone dôme de disque pour affaiblir le disque au point qu'un dommage accidentel subi par le disque ne l'affaiblira pas encore plus, ce qui garantit que ledit disque va s'inverser à une certaine pression, et non au-dessous de cette pression. Le disque possède des zones de transition irrégulières (20) à sa base et une rainure circulaire partielle (30). La zone de transition irrégulière du disque coopère avec un moyen favorisant le cisaillement telle qu'un élément saillant (22) ou une encoche (23) formés dans une bague de support (24) ou porte-disque (27) placé en aval dudit disque. Ledit disque comporte également un moyen de support (29) de contre-pression. Une partie non rainurée (32) de la zone de transition agit comme une charnière destinée à maintenir le dôme de disque rompu.

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