INERTIZATION OR EXTINGUISHING METHOD TO PREVENT AND / OR EXTINGUISH FIRE AND INERTIZATION SYSTEM TO IMPLEMENT THE METHOD.

摘要

Extinction or inertization method to prevent and / or extinguish fires, characterized in that in it a predefined oxygen content, which is reduced compared to the air of the standard environment, is established and maintained in the atmosphere of the room of a closed room (2), said method having the following steps: - an initial gas mixture is provided, which contains oxygen, nitrogen and, optionally, other components; - at least a portion of the oxygen is separated from the initial gas mixture provided, in a gas separation system (3,4), thus providing a nitrogen-enriched gas mixture at the outlet (4a) of the gas separation system. gases (3,4); and - the nitrogen-enriched gas mixture is introduced into the atmosphere of the room in the closed room (2), characterized in that the gas separation system (3,4) is controlled in such a way that the residual oxygen content of the nitrogen-enriched gas mixture, it is adjusted to a value that is selected based on the oxygen content that currently remains in the room atmosphere of the closed room.