Inerting method and device for extinguishing a fire

Details Inerting method and device for extinguishing a fire Inerting method and device for extinguishing a fire

A - Human Necessities

62

C

A62C 99/00 (2010.01)

Patent

CA 2551232

The present invention relates to an inerting method for extinguishing a fire in a closed room in which the oxygen content in the closed room is reduced to a specific inerting level within a given time (x), as well as a device for carrying out the method. In order to achieve the most exacting design possible to the inert gas fire-extinguishing system used during the inerting method, and in particular the most precise dimensioning possible to the inert gas to be provided, while simultaneously adhering to the required fire-fighting stage and re-ignition prevention stage necessary when extinguishing fires, the invention provides for the inerting level to be kept to the re-ignition prevention level within a given regulation range.

L'invention concerne un procédé d'inertisation pour éteindre un incendie dans un espace clos, selon lequel la teneur en oxygène dans l'espace clos est abaissée jusqu'à un niveau d'inertisation déterminé, en l'espace d'une période (x) prédéterminable, ainsi qu'un dispositif permettant de mettre ledit procédé en oeuvre. L'invention vise à parvenir à une conception la plus précise possible de l'installation d'extinction d'incendie en atmosphère inerte utilisée lors de l'application du procédé d'inertisation et à permettre d'obtenir le dimensionnement le plus précis possible du gaz inerte à utiliser, tout en maintenant simultanément la phase de lutte contre les incendies et la phase visant à prévenir tout retour de flamme, requises. A cet effet, il est prévu, selon l'invention, de maintenir le niveau de gaz inerte à un niveau visant à prévenir tout retour de flamme, avec une plage de régulation déterminée.

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