Amrona Ag

Anselm Eberlein

Peter Uwe Kersten

The present invention relates to a gas extinguishing system for a predefined protected area, particularly small-parts storage systems, wherein the gas extinguishing system comprises an inert gas source and a diffuser system fluidly connected to the inert gas source by a tubing system. The diffuser system comprises a diffuser tube having a plurality of drill holes provided in the surface of the diffuser tube and a pressure reducer allocated to the diffuser tube. In order to be able to achieve non-interactiveness with respect to the diffuser system from the standpoint of the design of the gas extinguishing system, the inventive provides for designing the diffuser system such that a primary baffle pressure measured in absolute bar is at least twice as high as the internal pressure of the diffuser tube during the flooding period dimensioned for the protected area and that the internal pressure of the diffuser tube during the dimensioned flooding period is at a maximum of 2 bar absolute.

Gas extinguishing system

The invention relates to a method for determining and/or monitoring the air tightness of an enclosed room () which is equipped with an oxygen reducing system () and in the atmosphere of which at least one oxygen content that can preferably be determined in advance and is reduced in comparison to the normal surrounding air can be set and maintained in order to prevent and/or extinguish fires by introducing an oxygen-displacing gas. The oxygen reducing system () has a compressor system () for compressing an initial gas mixture and a gas separation system () downstream of the compressor system () for separating at least one part of the oxygen contained in the initial gas mixture and for providing a nitrogen-enriched gas which is supplied to the enclosed room (). The differential pressure set in the room () is ascertained and compared to a corresponding reference value, whereby information regarding the air tightness of the room () is provided.

Method and device for determining and/or monitoring the air tightness of an enclosed room

The invention relates to an inerting method as well as an inerting system () to set and/or maintain a reduced oxygen content in an enclosed room (), wherein a gas separation system () is provided which separates off at least a portion of the oxygen from an initial gas mixture provided in a mixing chamber () and by so doing, provides a nitrogen-enriched gas mixture. In order to optimize the operation of the inerting system (), the invention provides for a portion of the air to be withdrawn from the enclosed room () and admixed with fresh air in the mixing chamber ().

Inerting method for preventing and/or extinguishing fire as well as inerting system to realize the method

Described herein are an inerting method as well as an inerting system () for preventing and/or extinguishing fire, wherein a gas separation system () 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 (), 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 () of the gas separation system (). 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 () designed to control the gas separation system () 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 ().

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Hannover, Germany

Anselm Eberlein