Inert gas fire extinguisher for reducing the risk and for...

A - Human Necessities – 62 – C

Patent

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Details

A62C 99/00 (2010.01) A62C 35/68 (2006.01)

Patent

CA 2737679

The invention relates to an inert gas fire extinguisher (100) for reducing the risk and for extinguishing fires in a protected space (10, 10-1, 10-2). In order to ensure that the protected space (10, 10-1, 10-2) can be inerted according to different adjustable event sequences, the inert gas fire extinguisher (100) comprises a pressure reducing device (6) with at least two parallel branches (21, 31, 41), wherein each parallel branch (21, 31, 41) comprises a pressure reducing device (22, 32, 42). Each parallel branch (21, 31, 41) can be connected to a high pressure collecting line (3) and to a low-pressure extinguishing line (4, 4-1, 4-2) by way of a controllable valve (23, 33, 43), wherein each pressure reducing device (22, 32, 42) is adapted to reduce a high input pressure to a low output pressure according to a known pressure reducing characteristic.

L'invention concerne une installation d'extinction à gaz inerte (100) destinée à réduire le risque et à éteindre les incendies dans un local protégé (10, 10-1, 10-2). Pour obtenir l'inertisation du local protégé (10, 10-1, 10-2) en fonction de séquences d'événements pouvant différer, l'installation d'extinction à gaz inerte (100) possède un dispositif réducteur de pression (6) avec au moins deux voies parallèles (21, 31, 41), chacune des voies parallèles (21, 31, 41) comprenant un dispositif réducteur de pression (22, 32, 42). Chacune des voies parallèles (21, 31, 41) peut être reliée par une vanne asservie (23, 33, 43) à une conduite de collecte à haute pression (3) et une conduite d'extinction à basse pression (4, 4-1, 4-2). Chaque dispositif réducteur de pression (22, 32, 42) est conçu pour ramener une pression d'entrée élevée à une faible pression de sortie, selon une caractéristique connue de réduction de la pression.

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