Integrated barrier fluid sealing apparatus with visual...

F - Mech Eng,Light,Heat,Weapons – 16 – J

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F16J 15/16 (2006.01) F16J 15/32 (2006.01) F16J 15/40 (2006.01) F16K 37/00 (2006.01) F16K 41/00 (2006.01)

Patent

CA 2340631

An integrated barrier fluid sealing apparatus (10) includes an annular pressure intensifier (14) surrounding a shaft (12) of an operational device and defining a chamber (18) extending around and along the shaft (12) and containing a barrier fluid (B). The integrated apparatus (10) also includes an annular sealing arrangement (16) mounted to the pressure intensifier (14) and surrounding the shaft (12) so as to provide a seal around the shaft (12) such that the pressure intensifier (14) and sealing arrangement (16) cooperate to prevent leakage of process fluid (P) along the shaft (12) to an external environment (E). A visual barrier fluid volume indicator mechanism (56) also is provided which cooperates with operation of the pressure intensifier (14) to visually indicate the volume of barrier fluid (B) in the chamber (18) of the pressure intensifier (14).

La présente invention concerne un appareil d'étanchéité intégré à fluide barrière (10) comprenant un multiplicateur de pression annulaire (14) entourant l'arbre (12) d'un dispositif opérationnel et formant une enceinte (18) s'étendant le long de l'arbre et sur sa périphérie, et contenant un fluide barrière (B). L'appareil intégré (10) comprend également un dispositif d'étanchéité annulaire (16) monté sur le multiplicateur de pression (14) et entourant l'arbre (12) de façon à former un joint étanche autour de l'arbre (12), et de façon à ce que le multiplicateur de pression (14) et le dispositif d'étanchéité (16) coopèrent ensemble pour empêcher la fuite du fluide de traitement (P) le long de l'arbre (12) vers un environnement externe (E). Par ailleurs, un indicateur visuel du volume du fluide barrière (56) coopère lors de fonctionnement du multiplicateur de pression (14) pour indiquer visuellement le volume du fluide barrière (B) contenu dans l'enceinte (18) du multiplicateur de pression (14).

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