Fluid vacuum safety device for fluid transfer systems

Details Fluid vacuum safety device for fluid transfer systems Fluid vacuum safety device for fluid transfer systems

F - Mech Eng,Light,Heat,Weapons

04

B

F04B 49/02 (2006.01) A47K 3/00 (2006.01)

Patent

CA 2338582

A safety device (50) for use in a fluid transfer system having a pump (24) which draws water from a reservoir through one or more intake lines (10) each extending from an open end at the reservoir to the pump intake. The device analyzes negative pressure levels in the system and, upon detecting a negative pressure level being outside of a selected operational range, deactivates the pump (24) and triggers a vacuum breaker device to reduce negative pressure in the system. The safety device may further activate alarm devices to indicate that the system has been deactivated.

L'invention concerne un dispositif de sécurité (50) utilisé dans un système de transfert de fluides comprenant une pompe (24) qui achemine l'eau d'un réservoir à travers une ou plusieurs conduites d'admission (10), chacune s'étendant d'une extrémité ouverte dans le réservoir vers l'admission de la pompe. Le dispositif analyse les niveaux de pression négative dans le système et après détection d'un niveau de pression négative non compris dans la plage opérationnelle sélectionnée, il désactive la pompe (24) et met en route un reniflard pour éliminer la pression négative dans le système. Ce dispositif de sécurité peut mettre en route des dispositifs d'alerte de manière à indiquer que le système a été désactivé.

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