Amrona Ag

Wagner Fire Safety, Inc.

Amrona Ag (Ch)

Wagner Alarm- Und

Wagner Alarm-Und Sicherungs -Systeme Gmbh & Co.

Ernst-Werner Wagner

Andreas Siemens

Thomas Claessen

Carsten Heller

Julian Eichhoff

Dieter Lietz

Marcus Thiem

Peter Clauss

An oxygen-reducing installation and method include a compressed gas storage having a container for storing a compressed gas, which can be an oxygen-reduced gas mixture or an inert gas, and having a fluid connection to an enclosed area via a line system to feed at least a portion of the compressed gas to the enclosed area. A gas separation system provides an oxygen-reduced gas mixture and includes an outlet for delivery of the oxygen-reduced gas mixture produced in the gas separation system to the compressed gas storage and/or to the enclosed area as required.

Oxygen-reducing installation and method for operating an oxygen-reducing installation

A system for reducing the oxygen content in the spatial atmosphere of an enclosed area and/or for maintaining a reduced oxygen content in the spatial atmosphere of an enclosed area below a predefined and reduced operating concentration in comparison to the oxygen concentration of the normal ambient air. The system includes a gas separation system to that end, the outlet of which is fluidly connected to the enclosed area in order to continuously supply an oxygen-reduced gas mixture or oxygen-displacing gas. The gas separation system is configured such that the oxygen concentration in the spatial atmosphere of the enclosed area always remains in a range between the predefined operating concentration and a predefined or definable lower limit concentration during a continuous operation of the gas separation system.

Oxygen reduction system and method for configuring an oxygen reduction system

The present invention relates to a system as well as a method for extinguishing fire in an enclosed room () in which the enclosed room () is flooded with extinguishing gas at least until an extinguishing gas concentration capable of providing an extinguishing effect (a) is set in the flood zone. In order to achieve the realizing of a maximum extinguishing gas concentration (b) as quickly as possible without the flooding of the room () thereby posing a danger to people, it is inventively provided for the flooding of the enclosed room () to be divided into a pre-flooding phase and a main flooding phase subsequent thereto. The pre-flooding phase corresponds to an interval of time between the time (t) the alarming starts to warn people of impending danger and a predefined time (t). The main flooding phase corresponds to an interval of time between the predefined time (t) and the time (t) at which a maximum extinguishing gas concentration (b) is reached. The enclosed room () is flooded such that during the entire pre-flooding phase, the concentration of extinguishing gas in the enclosed room () does not exceed a predefined or predefinable value for the extinguishing gas employed which is below the critical NOAEL value.

Method for extinguishing a fire in an enclosed space, and fire extinguishing system

A system for reducing oxygen in a target room, particularly for the purpose of controlling or preventing fire, wherein the system comprises an enclosed buffer space which is fluidly connectable or connected to the target room for the as-needed introduction of at least a portion of the room air of the buffer space into the target room. The system moreover comprises an oxygen-reducing mechanism allocated to the buffer space for setting and maintaining a reduced oxygen content in the spatial atmosphere of the buffer space compared to the normal earth atmosphere such that the oxygen content in the spatial atmosphere of the buffer space is lower than the oxygen content in the spatial atmosphere of the target room. The system moreover comprises a mechanism for introducing room air from the buffer space into the target room as needed.

System and method for reducing oxygen in a target room

The invention relates to an inert gas fire-extinguishing system for reducing the risk of and extinguishing fires in a protected room. So as to have the inerting of the protected room ensue according to different variable sequences of events, the inert gas fire-extinguishing system includes a pressure-reducing device having at least two parallel branches, wherein each parallel branch has a pressure-reducing mechanism. Each parallel branch is connectable to a high-pressure collecting line and a low-pressure extinguishing line via a controllable valve, whereby each pressure-reducing mechanism is designed to reduce a high input pressure to a low output pressure according to a known pressure-reducing characteristic curve.

Inert gas fire extinguisher for reducing the risk and for extinguishing fires in a protected space

The invention relates to a preventing and extinguishing fires in enclosed spaces in which the internal air atmosphere is not permitted to exceed a predefined temperature value. In order not to have to increase the cooling capacity of an air conditioning system when inert gas is added to the internal air atmosphere to set or maintain a specific inertization level within an enclosed space, a system for the regulated discharging of inert gas into same is provided. The system includes a container for the provision and storage of the inert gas in liquified form, and a vaporizer connected to the container for vaporizing at least a portion of the inert gas and discharging same into the internal air atmosphere of the enclosed space. The vaporizer thereby directly or indirectly extracts the heat energy needed to vaporize the liquid inert gas from the internal air atmosphere of the enclosed space.

Method and device for preventing and/or extinguishing fires in enclosed spaces

The present invention relates to an inerting method for reducing a risk of fire outbreak in an enclosed space as well as a device therefor. A continuous inerting of the enclosed space to spatially-separated zones of the enclosed space is performed as necessary without needing structural separations. At least one inert gas having a gas density (&#x3c1;) which differs from the mean gas density (&#x3c1;) of the ambient atmosphere of the space is introduced into the enclosed space such that a gas stratification including a first gas layer (A) and a second gas layer (B) forms in the enclosed space, wherein the oxygen content in the first gas layer (A) corresponds substantially to the oxygen content of the ambient atmosphere, and wherein the oxygen content in the second gas layer (B) corresponds to a specific, definable oxygen content which is lower than the oxygen content of the ambient atmosphere.

Inerting method for reducing the risk of fire outbreak in an enclosed space and device therefor

A method and device for preventing fire and for extinguishing fire in an enclosed space in which a permanent negative pressure is set, includes fresh air being supplied in a regulated manner to the compartment atmosphere as supply air and exhaust air being discharged from the compartment atmosphere in a regulated manner, and wherein should a fire occur or to prevent a fire, an extinguishing agent which is gaseous under normal conditions is supplied to the compartment atmosphere as the supply air. In order to achieve a relieving of pressure without changing the set negative pressure, or upon a sudden flooding of the space with the gaseous extinguishing agent, the total volume flow of fresh air and/or extinguishing agent supplied to the compartment atmosphere as supply air is at all times less than or equal to the volume flow of the exhaust air discharged from the compartment atmosphere.

Method and device for preventing and extinguishing fire in an enclosed space

The invention relates to an inertization device for establishing and maintaining a presettable inertization level in a protective room. The inertization device has an inert gas system for providing inert gas, a supply pipe system connected to the inert gas system for supplying the inert gas to the protective room, and an inert gas system control unit for controlling the inert gas system. The rate the inert gas rate is provided determines a level of inertization inside the protective room. In order for the inert gas rate supplied to the protective room to be appropriately controlled, even in the event of a disruption in the control of the inert gas system or in the event of a failure of the inert gas system control unit, a safety device is provided.

Inertization device with safety device

In the event of a failure of a fire prevention or extinguishing system, an inertization method reduces the fire risk in an enclosed protected area, where the oxygen content in the area can be maintained on a control concentration that lies below an operating concentration for a certain time period, so that the emergency operation phase is sufficiently long to prevent the ignition and/or re-ignition of combustible materials therein. The control concentration is maintained for an emergency operation period by a redundant secondary source. Alternatively, the control concentration and the operating concentration, while forming a safety margin, can be lowered so far below the design concentration that in the event of a primary source failure, the growth curve of the oxygen content reaches a limit concentration determined for the area in a predefined period, which is sufficiently long to continue to prevent the ignition and/or re-ignition of the combustible materials.

Inertization method for reducing the risk of fire

The present invention relates to an inertization process for decreasing a risk of fire and for extinguishing fires in a protected room, wherein an oxygen concentration in the protected room is first lowered to a specific base inertization level, and wherein the oxygen concentration in the protected room is maintained at the base inertization level. In the event of a fire, additional inert gas is introduced based upon the extent of the fire in the protected room to further decrease from the base inertization level to a first lowered level. The oxygen concentration is maintained at the first lowered level for a first preset time interval, and further decreased from the first lowered level to a full inertization level, if the fire has not yet been extinguished once the first preset time interval has elapsed.

Multi-stage inertization process for preventing and extinguishing fires within enclosed spaces

The invention relates to an inertization device for establishing and maintaining an inertization level in a protective room. The inertization device has a controllable inert gas system for providing inert gas, a first supply pipe system connected to the inert gas system and the protective room to supply the inert gas to the protective room, and a control unit to control the inert gas system such that a presettable inertization level is established and maintained inside the protective room. In order to raise the inertization level inside the protective room rapidly to an accessibility level without requiring major structural measures, a valve controlled by the control unit is connected to the inert gas system and the first supply pipe system to supply the exhaust air prepared by the inert gas system as fresh air to the protective room.

Inertization device with nitrogen generator

Method for generating smoke aerosols and pyrolysis apparatus for

A device is adapted for attachment to and for detecting fire in ventilated appliances and machines. The device includes a measuring chamber in the form of a chimney having a lower cross sectional opening adapted to be placed on at least a part of an air outlet of the ventilated appliance or machine to receive at least a portion of the ventilated air therefrom for flow therethrough. At least one fire detector is positioned in the measuring chamber in the path of air flow therethrough for sensing a fire and is adapted to be connected to an alarm and an extinguishing and/or switch-off device for the appliance or machine.

Growing community of inventors

Winsen/Aller, Germany

Ernst-Werner Wagner