System and method for preventing or extinguishing fire

US8727031B2 · kind B2 · utility

Assignee

• AMRONA AG · CH

Inventors

• Anselm Eberlein · Hannover, DE
• Peter Kersten · Leonberg, DE

Key dates

• Filing date: Dec 14, 2009
• Grant date: May 20, 2014
• Expiry date: Feb 17, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A62C99/0018
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

Described herein are an inerting method as well as an inerting system (1) for preventing and/or extinguishing fire, wherein a gas separation system (3, 4) is provided to set and/or maintain a predefinable oxygen content, which is reduced compared to normal ambient air, in the spatial atmosphere of an enclosed room (2), said system separating off at least a portion of the oxygen contained in an initial nitrogen/oxygen gas mixture and thereby provide a nitrogenated gas mixture at the outlet (4a) of the gas separation system (3, 4). In order to achieve the setting and maintaining of a predefined inerting level with the lowest possible expenditure of energy, the description herein provides for a control device (5) designed to control the gas separation system (3, 4) such that the residual oxygen content of the nitrogenated gas mixture is changed as a function of the oxygen content prevailing at that moment in the spatial atmosphere of the enclosed room (10).