Abstract: 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.

Abstract: 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.

Abstract: The present invention relates to a system as well as a method for extinguishing fire in an enclosed room (6) in which the enclosed room (6) 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 (6) thereby posing a danger to people, it is inventively provided for the flooding of the enclosed room (6) 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 (t1) the alarming starts to warn people of impending danger and a predefined time (t2). The main flooding phase corresponds to an interval of time between the predefined time (t2) and the time (t4) at which a maximum extinguishing gas concentration (b) is reached.

Abstract: 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.

Abstract: 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.

Abstract: The present invention relates to a system as well as a method for extinguishing fire in an enclosed room (6) in which the enclosed room (6) 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 (6) thereby posing a danger to people, it is inventively provided for the flooding of the enclosed room (6) 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 (t1) the alarming starts to warn people of impending danger and a predefined time (t2). The main flooding phase corresponds to an interval of time between the predefined time (t2) and the time (t4) at which a maximum extinguishing gas concentration (b) is reached.

Abstract: The present invention relates to a system as well as a method for extinguishing fire in an enclosed room (6) in which the enclosed room (6) 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 (6) thereby posing a danger to people, it is inventively provided for the flooding of the enclosed room (6) 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 (t1) the alarming starts to warn people of impending danger and a predefined time (t2). The main flooding phase corresponds to an interval of time between the predefined time (t2) and the time (t4) at which a maximum extinguishing gas concentration (b) is reached.

Abstract: 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.

Abstract: The invention relates to an inerting system as well as an inerting method for reducing oxygen in which an oxygen content which is predefinable and reduced in comparison to normal ambient air is set and maintained in the spatial atmosphere of an enclosed room (2). To this end, the inerting system (1) comprises a compressor system (3) for compressing an initial gas mixture as well as a gas separation system (10) connected to the compressor system (3). At least a portion of the oxygen contained within the compressed initial gas mixture is separated in the gas separation system (10). The gas separation system (10) is designed to be selectively operated in either a VPSA mode or a PSA mode.

Abstract: 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.

Abstract: A device and a method for detecting scattered light signals is specified. A light source exposes a scattered light area in which particles may be present to light. With the objective of reducing costs and improving detection accuracy, the device comprises a plurality of optical sensors for detecting scattered light and an evaluation unit for evaluating the signals detected by the optical sensors, wherein the sensors are each arranged at a sensor angle relative to the incident axis of the incident light so as to detect scattered light from the scattered light area, wherein one of the plurality of optical sensors is a reference sensor, and wherein the evaluation unit is designed to relate the signal profiles of the other optical sensors to the signal profile of the reference sensor, wherein the signal profiles of the optical sensors serve in classifying any particles which may be present in the scattered light area.

Abstract: The present invention relates to an inerting method for extinguishing a fire in a closed room in which the oxygen content in the closed room is reduced to a specific inerting level within a given time (x), as well as a device for carrying out the method. In order to achieve the most exacting design possible to the inert gas fire-extinguishing system used during the inerting method, and in particular the most precise dimensioning possible to the inert gas to be provided, while simultaneously adhering to the required fire-fighting stage and re-ignition prevention stage necessary when extinguishing fires, the invention provides for the inerting level to be kept to the re-ignition prevention level within a given regulation range.

Abstract: A device and a method for detecting scattered light signals is specified. A light source exposes a scattered light area in which particles may be present to light. With the objective of reducing costs and improving detection accuracy, the device comprises a plurality of optical sensors for detecting scattered light and an evaluation unit for evaluating the signals detected by the optical sensors, wherein the sensors are each arranged at a sensor angle relative to the incident axis of the incident light so as to detect scattered light from the scattered light area, wherein one of the plurality of optical sensors is a reference sensor, and wherein the evaluation unit is designed to relate the signal profiles of the other optical sensors to the signal profile of the reference sensor, wherein the signal profiles of the optical sensors serve in classifying any particles which may be present in the scattered light area.

Abstract: 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.

Abstract: The present invention relates to a system as well as a method for extinguishing fire in an enclosed room (6) in which the enclosed room (6) 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 (6) thereby posing a danger to people, it is inventively provided for the flooding of the enclosed room (6) 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 (t1) the alarming starts to warn people of impending danger and a predefined time (t2). The main flooding phase corresponds to an interval of time between the predefined time (t2) and the time (t4) at which a maximum extinguishing gas concentration (b) is reached.

Abstract: The invention relates to an inerting system as well as an inerting method for reducing oxygen in which an oxygen content which is predefinable and reduced in comparison to normal ambient air is set and maintained in the spatial atmosphere of an enclosed room (2). To this end, the inerting system (1) comprises a compressor system (3) for compressing an initial gas mixture as well as a gas separation system (10) connected to the compressor system (3). At least a portion of the oxygen contained within the compressed initial gas mixture is separated in the gas separation system (10). The gas separation system (10) is designed to be selectively operated in either a VPSA mode or a PSA mode.

Abstract: 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.

Abstract: An inertization method for preventing fire or explosion in a first enclosed protected area by lowering the oxygen content in the protected area to a base inertization level relative-to the ambient air. With the objective of eliminating any danger to people or processes within the protected area, the method according to the invention provides for measuring the oxygen content in the protected area, comparing it to a threshold (maximum inertization level), and in the event it falls below the threshold (maximum inertization level), introducing fresh air into the protected area(s).

Abstract: 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 (?Gas) which differs from the mean gas density (?Gas) 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.

Abstract: 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.