EP1913978B1 - Inertisierungsvorrichtung mit Stickstoffgenerator - Google Patents
Inertisierungsvorrichtung mit Stickstoffgenerator Download PDFInfo
- Publication number
- EP1913978B1 EP1913978B1 EP06122593A EP06122593A EP1913978B1 EP 1913978 B1 EP1913978 B1 EP 1913978B1 EP 06122593 A EP06122593 A EP 06122593A EP 06122593 A EP06122593 A EP 06122593A EP 1913978 B1 EP1913978 B1 EP 1913978B1
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- EP
- European Patent Office
- Prior art keywords
- air
- nitrogen
- inerting
- inert gas
- nitrogen generator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 325
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 163
- 239000011261 inert gas Substances 0.000 claims abstract description 157
- 239000001301 oxygen Substances 0.000 claims abstract description 119
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 119
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 118
- 230000001681 protective effect Effects 0.000 claims description 42
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
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- 230000001105 regulatory effect Effects 0.000 description 2
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
- A62C99/0018—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using gases or vapours that do not support combustion, e.g. steam, carbon dioxide
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
Definitions
- the present invention relates to an inerting device for setting and maintaining predefinable inertization levels in a protected space to be monitored, wherein the inerting device comprises a controllable inert gas system for providing inert gas, a first supply pipe system connected to the inert gas system, which is connectable to the protective space, around that provided by the inert gas system Inert gas supply to the shelter, and having a control unit which is designed to control the inert gas system such that a certain predetermined inerting level is set in the shelter and held there.
- the inerting device comprises a controllable inert gas system for providing inert gas, a first supply pipe system connected to the inert gas system, which is connectable to the protective space, around that provided by the inert gas system Inert gas supply to the shelter, and having a control unit which is designed to control the inert gas system such that a certain predetermined inerting level is set in the shelter and held there.
- Such an inerting device is basically known from the prior art.
- an inerting device for reducing the risk and extinguishing fires in enclosed spaces described.
- the known system is designed to reduce the oxygen content in an enclosed space (hereinafter referred to as "shelter") to a pre-settable baseline inerting level and, in the event of a fire, to further rapidly lower the oxygen level to a particular full inertization level, thus effectively extinguishing a fire To allow the lowest possible storage capacity for inert gas cylinders.
- the known device has a controllable by means of a control unit inert gas system and a connected to the inert gas system and the shelter supply pipe system via which the of Inert gas provided inert gas is supplied to the shelter.
- an inert gas is either a steel cylinder battery in which the inert gas is stored compressed, a system for generating inert gases or a combination of both solutions in question.
- an inerting device for setting and maintaining predeterminable inertization levels in a protected space to be monitored, wherein the inerting device comprises a controllable inert gas system for supplying inert gas, a first supply pipe system connected to the inert gas system, which can be connected to the protective space, around the inert gas provided by the inert gas system To supply protective space, and having a control device which is designed to control the inert gas system such that a certain specifiable inerting level is provided and held in the shelter, wherein the inert gas further comprises a fresh air supply system to supply the shelter fresh air when needed.
- inerting of the type mentioned is a facility to reduce the risk and extinguish fires in the protected area to be monitored, with a permanent inerting of the shelter for fire prevention and fire fighting is used.
- the operation of the inerting device is based on the knowledge that in closed rooms the risk of fire can be counteracted by the fact that the oxygen concentration in the affected area is normally lowered permanently to a value of, for example, about 12% by volume. At this oxygen concentration, most flammable materials can no longer burn.
- the main areas of use are in particular IT areas, electrical switch and distribution rooms, enclosed facilities as well as storage areas with high-quality assets.
- the prevention or extinguishing effect resulting from the inertization process is based on the principle of oxygen displacement.
- the normal ambient air is known to be 21% by volume of oxygen, 78% by volume of nitrogen and 1% by volume of other gases.
- inert gas such as nitrogen.
- a extinguishing effect starts when the oxygen content drops below 15% by volume.
- another Lowering the oxygen content to, for example, 12 vol .-% may be required.
- the risk of fire in the shelter is also effectively reduced can be.
- base inertization level generally refers to a reduced oxygen level in the room air of the shelter as compared to the oxygen level of the normal ambient air, although this reduced oxygen level does not in principle imply any endangerment to persons or animals from a medical point of view still be able to enter the shelter - under certain circumstances with certain precautionary measures.
- the setting of a basic inertization level which, unlike the so-called “full inertization level”, does not have to correspond to such a reduced oxygen content at which effective fire extinguishment already occurs, primarily to reduce the risk of fire in the shelter to reduce.
- the basic inerting level corresponds, depending on the circumstances of the individual case, to an oxygen content of, for example, 13% by volume to 15% by volume.
- full inertization level is to be understood as meaning a further reduced oxygen content in comparison to the oxygen content of the basic inertization level, in which the flammability of most materials has already been reduced to such an extent that they can no longer be ignited.
- the full inertization level is generally 11% by volume to 12% by volume oxygen concentration.
- the reduced oxygen content in the room air of the protected room corresponding to the basic inerting level in principle does not endanger persons and animals so that they can enter the shelter at least for a short time without major complications, for example without respiratory protection, they are permanently inertized at a basic inerting level
- Certain nationally prescribed safety measures must be taken into account, since in principle a stay in a reduced oxygen atmosphere can lead to an oxygen deficiency, which may have physiological effects on the human organism. These safety measures are specified in the respective national regulations and depend in particular on the amount of reduced oxygen content corresponding to the basic inerting level.
- Table 1 below shows these effects on the human organism and the flammability of materials.
- a shelter that would normally be at a basic inerting level of e.g. 13.8 to 14.5% by volume oxygen content in which, according to Table 1, an effective fire suppression can already be achieved, in the case of the inspection, for example for maintenance purposes, to a walkability level of e.g. Increase 15 to 17 vol .-% oxygen content.
- the lifting of the inerting level set in the shelter takes place from the basic inerting level to the accessibility level by a corresponding control of the inert gas system.
- the inert gas system should also produce or provide inert gas during the period of inspection of the protective space, so that the inert gas is supplied to the shelter in order to maintain the inerting level there (possibly with a certain control range) at the accessibility level.
- the term "accessibility level” as used herein means a reduced oxygen content in the ambient air of the shelter as compared to the oxygen content of the normal ambient air, in which the respective national regulations for an inspection of the shelter are none or only slight require additional security measures.
- the walkability level usually corresponds to an oxygen content in the room air that is higher than at a basic inerting level.
- the present invention is based on the object of developing an inerting device of the type mentioned in such a way that it can be reliably ensured that the inerting level can be quickly raised to a walkability level in a permanently inertized shelter without the need for additional large-scale structural measures ,
- the present invention has for its object to provide an inerting device of the type mentioned, with which a set in a protected space to be monitored inerting can be set and / or maintained in a reliable, the switching of the set in the shelter inerting levels, for example between a basic or a Full inertisation level and a level of accessibility, can be carried out as quickly as possible, whereby no major structural measures are required.
- the inert gas further comprises a preferably with the control unit via a shut-off valve bypass tube system, which is connected on the one hand to a compressed air source and on the other hand to the first supply pipe system, if necessary supplied by the compressed air source of compressed air to the shelter as fresh air, and thus to adjust the oxygen concentration in the shelter at a level corresponding to the set in the shelter and / or held certain inerting.
- a shut-off valve bypass tube system which is connected on the one hand to a compressed air source and on the other hand to the first supply pipe system, if necessary supplied by the compressed air source of compressed air to the shelter as fresh air, and thus to adjust the oxygen concentration in the shelter at a level corresponding to the set in the shelter and / or held certain inerting.
- the inert gas quantity supplied to the protective space and the oxygen concentration in the inert gas are already regulated in the inert gas system to the value necessary for setting or maintaining the predefinable inertization level in the protective space, the inert gas system consisting of the controllable inert gas system, which is connected to the control unit via a shut-off valve bypass pipe system which is connected on the one hand to a compressed air source and on the other hand to the first supply pipe system, and the supply pipe system.
- the function of providing both (ideally pure) inert gas and fresh air so that the supply pipe system which connects the inert gas with the shelter, for the supply of pure inert gas, pure fresh air or a Mixture thereof is used.
- compressed air compressed air compressed air is to be understood in the broadest sense.
- compressed air but also compressed and oxygen-enriched air to be understood.
- the compressed air can either be stored in appropriate pressure vessels or generated locally with suitable compressor equipment.
- compressed air for example, fresh air is to be understood, is introduced by means of a suitable blower in the bypass pipe system. Since the introduced with a blower in the bypass pipe system air also has a higher pressure compared to the normal ambient air, so there is compressed air or compressed air.
- the amount of inert gas supplied by the inert gas system and the inert gas in the inert gas is controlled on the one hand by a corresponding control of the inert gas system, with which the absolute amount of inert gas provided per unit time, and on the other controlled by a corresponding control of the bypass pipe system associated shut-off valve, whereby the absolute, the protection space per unit time supplied fresh air amount is set.
- the compressed air source has a pressure storage container for storing oxygen, air or compressed air enriched with oxygen, wherein the control unit is designed to control a controllable pressure reducer associated with the pressure storage container and connected to the first supply pipe system to set or maintain a certain inerting level in the shelter.
- the pressure storage container can be provided either as a compressed air source itself or as a separate unit in addition to the compressed air source in the inerting.
- the accumulator tank is in an advantageous manner in fluid communication with the via the shut-off valve switchable bypass pipe system.
- the inert gas system has a nitrogen generator connected to the compressed air source to separate oxygen from the compressed air supplied with the compressed air source and to provide nitrogen-enriched air at a first output of the nitrogen generator in which the nitrogen-enriched air provided by the nitrogen generator can be supplied via the first outlet of the nitrogen generator as an inert gas to the first supply pipe system.
- the bypass pipe system bridges the nitrogen generator to at least partially direct the fresh air supplied to the shelter at least partially directly as fresh air supply, and thus in the shelter a certain inerting level, if required and with appropriate control of the bypass pipe system associated shut-off valve to adjust and / or hold.
- the provided in the inert gas nitrogen generator can serve as the only provided in the inerting inert gas source; However, it would also be conceivable that the nitrogen generator together with additionally provided inert gas pressure storage containers, for example externally and / or via the nitrogen generator can be filled, justify the inert gas source of the inerting.
- a nitrogen generator is in particular a based on the membrane technology or on the PSA technology generator in question.
- the use of nitrogen generators in inerting devices is known per se.
- the nitrogen generator is a system that can be used, for example, to generate nitrogen-enriched air from normal ambient air.
- This is a gas separation system whose function is based, for example, on gas separation membranes.
- the nitrogen generator is designed for the separation of oxygen from the ambient air.
- a compressed air network or at least a compressor is required which produces the predetermined capacity for the nitrogen generator.
- the principle of action of the nitrogen generator is based on the fact that in the membrane system provided in the nitrogen generator, the various components contained in the compressed air supplied to the nitrogen generator (oxygen, nitrogen, noble gases, etc.) diffuse at different speeds through hollow-fiber membranes in accordance with their molecular structure. Nitrogen with a low degree of diffusion penetrates the hollow-fiber membranes very slowly and accumulates in this way as it flows through the hollow fiber.
- the inert gas system has a nitrogen generator connected to a compressed air source to separate oxygen from the compressed air supplied with the compressed air source and provide nitrogen-enriched air at a first output of the nitrogen generator, wherein the nitrogen generator provided and nitrogen-enriched air can be supplied as an inert gas to the first supply tube system through the first stage of the nitrogen generator.
- the nitrogen generator can be controlled by the control unit in such a way that a certain inerting level is set and / or maintained in the shelter, wherein the oxygen concentration in the inert gas supplied to the shelter can be adjusted by adjusting the degree of nitrogen enrichment in the inert gas Nitrogen-enriched air provided nitrogen generator in response to the residence time of the compressed air source provided by the compressed air source in the air separation system of the nitrogen generator is controlled.
- the nitrogen generator in this case the different diffusion rates of the main components of the air, namely nitrogen, oxygen and water vapor, are used technically to produce a nitrogen stream or a nitrogen-enriched air.
- a separation material is applied to the outer surfaces of hollow-fiber membranes, through which water vapor and oxygen diffuse very well. The nitrogen, however, has only a low diffusion rate for this separation material.
- the degree of nitrogen enrichment in the nitrogen-enriched air provided by the nitrogen generator may be controlled in response to the residence time of the compressed air provided by the compressed air source in the air separation system of the nitrogen generator.
- the PSA technology for example, in the nitrogen generator
- different binding rates of the atmospheric oxygen and atmospheric nitrogen on specially treated activated carbon are utilized.
- the structure of the activated carbon used is changed so that an extremely large surface with a large number of micro and submicropores (d ⁇ 1 nm) is present.
- the oxygen molecules of the air diffuse into the pores much faster than the nitrogen molecules, so that the air in the vicinity of the activated carbon enriches with nitrogen.
- the degree of nitrogen enrichment in the nitrogen-enriched air provided by the nitrogen generator may be controlled as a function of the residence time of the compressed air in the nitrogen generator provided by the compressed air source become.
- the amount of inert gas supplied by the inert gas system and the inert gas to be supplied to the protected space and / or the oxygen concentration in the inert gas is controlled by the inert gas system itself to the appropriate value, but knowledge now also exploits this it will be appreciated that in a nitrogen generator used as an inert gas system, the adjusted purity of the nitrogen-enriched gas stream provided by the nitrogen generator depends, inter alia, on the rate at which the compressed air flows through, for example, the membrane system or PSA system of the nitrogen generator and thus on the nitrogen generator Dwell time of the compressed air in the air separation system of the nitrogen generator depends.
- the air separation system membrane system or PSA system contained in the nitrogen generator ) has a cascade of a plurality of individual air separation units, wherein via the control unit, the number of individual air separation units is selected, which for separating oxygen from the supplied compressed air with the compressed air source and for providing the nitrogen-enriched air at the first output of Nitrogen generator can be used, wherein the degree of nitrogen accumulation in the provided by the nitrogen generator and nitrogen-enriched air in dependence on the selected via the control unit number of Einzelseparseparati is controlled on units.
- the selection of the number of individual air separation units initiated by the control unit can be realized, for example, with the aid of a correspondingly designed bypass pipe system connected to the respective inlets or outlets of the individual air separation units.
- the oxygen concentration in the inert gas supplied to the shelter is adjusted by the provision of a suitably designed bypass piping system.
- other designs for selecting the number of individual air separation units are also conceivable.
- the compressed air source connected to the nitrogen generator can be controlled by the control unit, to the Speed of the compressed air flowing through the air separation system contained in the nitrogen generator and thus to control the residence time of the compressed air in the air separation system.
- the inert gas system additionally has a nitrogen generator connected to a compressed air source with an air separation system contained therein to separate oxygen from the compressed air supplied with the compressed air source and provide nitrogen-enriched air at a first output of the nitrogen generator the nitrogen-enriched air provided by the nitrogen generator can be supplied via the first outlet of the nitrogen generator as an inert gas to the first feed tube system.
- the inerting device further comprises a connected to the inert gas second supply pipe system, which is connectable to the shelter, wherein the nitrogen from the compressed air separated oxygen as oxygen-enriched air via a second output of the nitrogen generator to the second supply pipe system can be fed so as to set and / or maintain a certain inerting level in the shelter.
- the exhaust air of the nitrogen generator which is usually blown off into the ambient air and consists essentially of oxygen-enriched air, is used to adjust the oxygen concentration in the protective space with this exhaust air.
- the lifting of a full or basic inertization level set in the shelter can be implemented to a walkability level within a short time.
- the inerting further comprises a second supply pipe system associated and controllable via the control valve for interrupting the means of the second supply pipe between Having the second output of the nitrogen generator and the shelter space producible connection.
- a controllable shut-off valve for example, a corresponding controllable control valve or the like in question.
- the inerting system furthermore has a pressure storage container for storing the oxygen-enriched air provided by the nitrogen generator, wherein the control unit is designed to control a controllable pressure reducer associated with this so-called “oxygen pressure accumulator tank” and connected to the second supply pipe system in order to set a specific inertization level in the shelter; to keep.
- a pressure-dependent valve device is furthermore provided, which is open in a first predeterminable pressure range and allows the oxygen pressure-accumulator container to be filled with the oxygen-enriched air provided by the nitrogen generator.
- the inerting device furthermore has at least one shut-off valve which is assigned to the first supply pipe system and can be actuated via the control unit for interrupting the connection which can be produced by means of the first supply pipe system between the first outlet of the nitrogen generator and the protective space.
- the nitrogen supply can thus be regulated.
- This is particularly advantageous with regard to maintaining a predefinable inerting level in the protective space, since in this case the amount of inert gas to be supplied to the protective space and / or the oxygen concentration of the inert gas depends primarily only on the air exchange rate of the protective space and depending on the design of the protective space can assume a correspondingly low value.
- At least one oxygen detection device for detecting the oxygen content in the room air of the shelter is further provided, wherein the control unit is designed, the amount of inert gas to be supplied to the shelter and / or to adjust the oxygen concentration of the inert gas as a function of the measured in the room air of the shelter oxygen content, thus basically only the actually required to set or hold a certain inerting required in the shelter inert gas to the shelter.
- the set in the shelter inerting can be set and maintained as accurately as possible by supplying a suitable amount of inert gas and / or a suitable fresh air or oxygen quantity.
- the oxygen detection device continuously or at predeterminable times emits a corresponding signal to the corresponding control unit, as a result of which the inert gas system is correspondingly activated in order always to supply the protective space with the inertization level necessary for maintaining the inertization level set in the protection space.
- the term "holding the oxygen content at a certain inertization level” as used herein means maintaining the oxygen content at the inertization level with a certain control range, the control range preferably being a function of the Type of shelter (for example, depending on an applicable for the shelter air exchange rate or depending on the materials stored in the shelter) and / or depending on the type of inerting system used for use.
- a control range is ⁇ 0.2 vol%.
- other control range sizes are also conceivable.
- an aspirative device offers itself here.
- the room air in the protected space to be monitored is constantly taken representative air samples and fed to an oxygen detector, which emits a corresponding detection signal to the corresponding control unit.
- the control unit being designed to control, for example, the air conveyor rate of the ambient air compressor in such a way that the amount of inert gas to be supplied to the protective space provided by the inert gas system and / or the oxygen concentration in the inert gas are set to the value suitable for setting and / or maintaining the first predeterminable inertization level.
- This preferred solution with regard to the inert gas system is characterized in particular by the fact that the inert gas system can generate the inert gas in situ, which eliminates the need, for example, to provide a pressure-cell battery in which the inert gas is stored in a compressed form.
- the inert gas system has an inert gas pressure storage container, wherein the control unit should be designed to control a controllable pressure reducer associated with the inert gas pressure storage container and connected to the first supply pipe system, in order to supply the inert gas system provided by the inert gas system Set amount of inert gas to be supplied to the shelter space and / or the oxygen concentration in the inert gas to the value suitable for setting and / or maintaining the predeterminable inertization.
- the inert gas pressure storage container may be provided in combination with the aforementioned ambient air compressor and / or inert gas generator or else alone.
- the inerting device further comprises a pressure-dependent valve device which opens in a first prescribable pressure range, for example between 1 and 4 bar is and a filling of the inert gas pressure storage tank with the inert gas system allowed.
- the solution according to the invention is not limited to setting or maintaining the accessibility level in the shelter. Rather, the claimed inerting device is designed such that the predeterminable inerting level can be a Vollinertmaschinesforementioned, a Grundinertmaschinesclude or a walkability level.
- Fig. 1 1 schematically shows a first embodiment of the inerting device 1 according to the invention for setting and maintaining predefinable inertization levels in a protected space 2 to be monitored.
- the inerting device 1 consists of an inert gas system, which in the illustrated embodiment has an ambient air compressor 10 and an inert gas or nitrogen generator 11 connected thereto.
- a control unit 12 is provided, which is designed to switch on / off via corresponding control signals the ambient air compressor 10 and / or the nitrogen generator 11. In this way, by means of the control unit 12 in the shelter 2, a predetermined inerting level can be set and maintained.
- the inert gas generated by the inert gas system 10, 11 is supplied via a feed pipe system 20 ("first supply pipe system") to the protected space 2 to be monitored; Of course, however, several shelters may be connected to the supply pipe system 20.
- first supply pipe system the supply of the inert gas provided with the inert gas system 10, 11 via corresponding outlet nozzles 51, which are arranged at a suitable location in the shelter 2.
- the inert gas advantageously nitrogen, recovered locally from the ambient air.
- the inert gas generator or nitrogen generator 11 functions, for example, according to the membrane or PSA technology known from the prior art, to produce nitrogen-enriched air with, for example, 90% to 95% nitrogen by volume.
- This nitrogen-enriched air is used in the Fig. 1 illustrated preferred embodiment as an inert gas, which is supplied to the shelter 2 via the supply pipe system 20.
- the in the production of the inert gas at the exit 11b as exhaust air accumulating and oxygen-enriched air is discharged here via another pipe system to the outside.
- control unit 12 depending on an example, by the user in the control unit 12 entered inerting the inert gas system 10, 11 so controlled that the predetermined inerting is set and maintained in the shelter 2.
- the selection of the desired inerting levels on the control unit 12 can be carried out, for example, with a key switch or password-protected on a (not explicitly shown) control panel.
- the selection of the inertization level takes place according to a predetermined sequence of events.
- the basic inerting level has been selected at the control unit 12, which was determined in advance taking into account in particular the characteristic values of the protection space 2, and if no inertization level has been set in the selection of the basic inertisation level in the protection space 2, i.
- a shut-off valve 21 associated with the supply pipe system 20 is connected to the control unit 12 for direct forwarding of the inert gas provided by the inert gas system 10, 11 into the shelter 2.
- the oxygen content in the protective space 2 is preferably continuously measured with the aid of an oxygen detection device 50.
- the oxygen detection device 50 is in communication with the control unit 12, so that the control unit 12 is fundamentally aware of the oxygen content set in the protection space 2.
- the control unit 12 If it is determined by measurement of the oxygen content in the shelter 2 that the Grundinertmaschinesmat was reached in the shelter 2, the control unit 12 outputs a corresponding signal to the inert gas system 10, 11 and / or to the shut-off valve 21 to turn off the further supply of inert gas. In the course of time, inert gas escapes through certain leaks, so that the oxygen concentration in the indoor air atmosphere increases. When the inertization level has moved away from the set point by more than a predetermined amount, the control unit 12 outputs a corresponding signal to the Inert gas system 10, 11 and / or to the shut-off valve 21 to turn on the supply of inert gas again.
- a bypass pipe system 40 which connects the output of the compressed air source 10 to the supply pipe system 20.
- the supply pipe system 20 and thus the protective space 2 can be used to supply the compressed air provided by the compressed air source 10 directly as fresh air via this bypass pipe system 40.
- a direct supply of fresh air in the shelter 2 is required if the inertization level set in the protection space 2 corresponds to an oxygen concentration which is lower than the oxygen concentration of an inertization level to be set in the protection space 2. This would be the case, for example, if too much inert gas was introduced accidentally or for other reasons when setting the basic inerting level in the shelter 2.
- a fresh air supply is also necessary if as quickly as possible in the shelter 2 already set there continuous annealing must be at least partially canceled, as is required, for example, in the case of the inspection of the shelter 2.
- the amount of inert gas to be supplied to the protective space and / or the oxygen concentration in the inert gas is provided for setting and / or maintaining a certain level of inertization, whereby the inert gas provided by the inert gas system is supplied to the protective space 2 via one and the same feed pipe system 20.
- Fig. 2 shows a schematic view of a second preferred embodiment of the inertization device according to the invention 1.
- the control unit 12 is designed to control a the nitrogen pressure accumulator tank 22 associated with the first feed pipe system 20 and connected controllable pressure reducer so as to ultimately the provided amount of inert gas to be supplied to the shelter 2 and / or the oxygen concentration in the inert gas on the Setting and / or holding the particular inertization level appropriate value.
- a pressure-dependent valve device 24 is provided, which is open in a first predeterminable pressure range and allows a filling of the nitrogen pressure storage container 22 with the nitrogen generator 11 provided and enriched with nitrogen air.
- FIG. 12 shows a schematic view of an exemplary embodiment of an inertization device 1.
- the inert gas system 10, 11 has a connected to the compressed air source 10 nitrogen generator 11 with an therein contained (not explicitly shown) air separation system to separate oxygen from the supplied with the compressed air source 10 compressed air and nitrogen-enriched air at a first output 11a of the nitrogen generator 11.
- the nitrogen-enriched air provided by the nitrogen generator 11 can be fed to the first supply pipe system 20 via the first exit 11a of the nitrogen generator 11 as an inert gas.
- the inerting device 11 further comprises a connected to the inert gas system 10, 11 second supply pipe system 30, which is connectable to the shelter 2 via a controllable with the control unit 12 shut-off valve 31, wherein the oxygen from the nitrogen generator 11 separated from the compressed air as with Oxygen enriched air via a second output 11 b of the nitrogen generator 11 to the second supply pipe system 30 can be fed.
- the second supply pipe system 30 opens in the first supply pipe system 20 and is therefore connectable to the shelter 2 via the first supply pipe system 20.
- FIG. 11 shows a schematic view of another exemplary embodiment of an inerting device 1.
- This embodiment is intended to facilitate understanding of the invention, but is not part of the claimed subject matter.
- This in Fig. 4 shown system differs from the embodiment according to Fig. 3 in that an accumulator tank 32 is additionally provided for storing the oxygen-enriched air provided by the nitrogen generator 11, wherein the Control unit 12 is designed to control an associated with the oxygen pressure storage tank 32 and connected to the second supply pipe system 30 controllable pressure reducer 33 to the provided by the inert gas system 10, 11 amount of inert gas to be supplied to the shelter 2 and / or the oxygen concentration in the inert gas set the value appropriate for setting and / or holding the determined inertization level.
- a pressure-dependent valve device 34 is provided, which is open in a first predeterminable pressure range and allows filling of the oxygen pressure storage container 32 with the oxygen-enriched air provided by the nitrogen generator 11.
- Fig. 5 1 shows a schematic view of a further (third) embodiment of the inertization device 1 according to the invention.
- a bypass pipe system 40 and, on the other hand, a second supply pipe system 30 are provided between the second exit 11b of the nitrogen generator 11 and the first supply pipe system 20.
- the nitrogen generator 11 may comprise, for example, a cascade of single-membrane units, the number of individual-membrane units being selectable for separating oxygen from that supplied to the compressed-air source 10 via the control unit 12 Compressed air and for providing the nitrogen-enriched air at the first exit 11a of the nitrogen generator 11, the degree of nitrogen enrichment in the nitrogen-enriched air provided by the nitrogen generator 11 being controlled in response to the number of single-membrane units selected via the control unit 12 can.
Landscapes
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Health & Medical Sciences (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
- Motor Or Generator Cooling System (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Fire-Extinguishing Compositions (AREA)
- Paper (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Generation Of Surge Voltage And Current (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Pyrane Compounds (AREA)
- Storage Of Fruits Or Vegetables (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Treating Waste Gases (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Priority Applications (29)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT06122593T PT1913978E (pt) | 2006-10-19 | 2006-10-19 | Dispositivo de inertização com gerador de azoto |
ES06122593T ES2325092T3 (es) | 2006-10-19 | 2006-10-19 | Dispositivo de inertizacion con generador de nitrogeno. |
DE502006003825T DE502006003825D1 (de) | 2006-10-19 | 2006-10-19 | Inertisierungsvorrichtung mit Stickstoffgenerator |
SI200630379T SI1913978T1 (sl) | 2006-10-19 | 2006-10-19 | Naprava za inertizacijo z generatorjem dušika |
PL06122593T PL1913978T3 (pl) | 2006-10-19 | 2006-10-19 | Urządzenie inertyzacyjne z generatorem azotu |
AT06122593T ATE432113T1 (de) | 2006-10-19 | 2006-10-19 | Inertisierungsvorrichtung mit stickstoffgenerator |
DK06122593T DK1913978T3 (da) | 2006-10-19 | 2006-10-19 | Inaktiveringsapparat med kvælstofgenerator |
EP06122593A EP1913978B1 (de) | 2006-10-19 | 2006-10-19 | Inertisierungsvorrichtung mit Stickstoffgenerator |
BRPI0706812-3A BRPI0706812B1 (pt) | 2006-10-19 | 2007-08-02 | Inertization device |
KR1020087023524A KR101359857B1 (ko) | 2006-10-19 | 2007-08-02 | 질소 생성기를 구비한 불활성화 장치 |
RU2008142232/12A RU2414266C2 (ru) | 2006-10-19 | 2007-08-02 | Устройство инертирования с генератором азота |
CN2007800071630A CN101394901B (zh) | 2006-10-19 | 2007-08-02 | 具有氮发生器的惰性化设备 |
JP2009532742A JP5045758B2 (ja) | 2006-10-19 | 2007-08-02 | 窒素発生器を有する不活性化装置 |
CA2651502A CA2651502C (en) | 2006-10-19 | 2007-08-02 | Inertisation device with nitrogen generator |
AU2007312475A AU2007312475C1 (en) | 2006-10-19 | 2007-08-02 | Inertisation device comprising a nitrogen generator |
CA2835565A CA2835565C (en) | 2006-10-19 | 2007-08-02 | Inertisation device with nitrogen generator |
UAA200810181A UA92063C2 (uk) | 2006-10-19 | 2007-08-02 | Пристрій для інертизації з генератором азоту (варіанти) |
PCT/EP2007/058029 WO2008046674A1 (de) | 2006-10-19 | 2007-08-02 | Inertisierungsvorrichtung mit stickstoffgenerator |
PT07117620T PT1913979E (pt) | 2006-10-19 | 2007-10-01 | Dispositivo de inertização com gerador de azoto |
AT07117620T ATE420699T1 (de) | 2006-10-19 | 2007-10-01 | Inertisierungsvorrichtung mit stickstoffgenerator |
ES07117620T ES2318831T3 (es) | 2006-10-19 | 2007-10-01 | Dispositivo de inertizacion con generador de nitrogeno. |
PL07117620T PL1913979T3 (pl) | 2006-10-19 | 2007-10-01 | Urządzenie inertyzujące z wytwornicą azotu |
DE502007000383T DE502007000383D1 (de) | 2006-10-19 | 2007-10-01 | Inertisierungsvorrichtung mit Stickstoffgenerator |
EP07117620A EP1913979B1 (de) | 2006-10-19 | 2007-10-01 | Inertisierungsvorrichtung mit Stickstoffgenerator |
SI200730017T SI1913979T1 (sl) | 2006-10-19 | 2007-10-01 | Inertizacijski sistem z generatorjem dušika |
DK07117620T DK1913979T3 (da) | 2006-10-19 | 2007-10-01 | Inertiseringsanordning med kvælstofgenerator |
US11/874,618 US7673694B2 (en) | 2006-10-19 | 2007-10-18 | Inertization device with nitrogen generator |
HK08106379.0A HK1115828A1 (en) | 2006-10-19 | 2008-06-10 | Inerting device with nitrogen generator |
NO20083685A NO343788B1 (no) | 2006-10-19 | 2008-08-27 | Inerteringsinnretning som omfatter en nitrogengenerator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06122593A EP1913978B1 (de) | 2006-10-19 | 2006-10-19 | Inertisierungsvorrichtung mit Stickstoffgenerator |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1913978A1 EP1913978A1 (de) | 2008-04-23 |
EP1913978B1 true EP1913978B1 (de) | 2009-05-27 |
Family
ID=37845243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06122593A Active EP1913978B1 (de) | 2006-10-19 | 2006-10-19 | Inertisierungsvorrichtung mit Stickstoffgenerator |
Country Status (20)
Country | Link |
---|---|
US (1) | US7673694B2 (ko) |
EP (1) | EP1913978B1 (ko) |
JP (1) | JP5045758B2 (ko) |
KR (1) | KR101359857B1 (ko) |
CN (1) | CN101394901B (ko) |
AT (2) | ATE432113T1 (ko) |
AU (1) | AU2007312475C1 (ko) |
BR (1) | BRPI0706812B1 (ko) |
CA (2) | CA2651502C (ko) |
DE (2) | DE502006003825D1 (ko) |
DK (2) | DK1913978T3 (ko) |
ES (2) | ES2325092T3 (ko) |
HK (1) | HK1115828A1 (ko) |
NO (1) | NO343788B1 (ko) |
PL (1) | PL1913978T3 (ko) |
PT (2) | PT1913978E (ko) |
RU (1) | RU2414266C2 (ko) |
SI (1) | SI1913978T1 (ko) |
UA (1) | UA92063C2 (ko) |
WO (1) | WO2008046674A1 (ko) |
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KR200463537Y1 (ko) | 2010-10-06 | 2012-11-09 | 박종범 | 질소발생기의 구조 |
DE102010050742A1 (de) * | 2010-11-08 | 2012-05-10 | Li-Tec Battery Gmbh | Verfahren und Vorrichtung zur Bekämpfung oder Vermeidung von Bränden im Inneren, an der Oberfläche oder in der Umgebung eines elektrochemischen Energiespeichers |
US8567936B2 (en) | 2010-11-10 | 2013-10-29 | Electronics For Imaging, Inc. | LED roll to roll drum printer systems, structures and methods |
DK2462994T3 (da) * | 2010-12-10 | 2013-12-09 | Amrona Ag | Inertiseringsfremgangsmåde til at forebygge og/eller slukke brande og inertiseringssystem til implementering af fremgangsmåden. |
US9527307B2 (en) | 2010-12-15 | 2016-12-27 | Electronics For Imaging, Inc. | Oxygen inhibition for print-head reliability |
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EP2724754B1 (de) * | 2012-10-29 | 2016-11-30 | Amrona AG | Verfahren und Vorrichtung zum Bestimmen und/oder Überwachen der Luftdichtigkeit eines umschlossenen Raumes |
KR101244426B1 (ko) * | 2012-12-03 | 2013-03-18 | (유)성문 | 화재예방 및 억제장치 |
ES2593602T3 (es) * | 2013-05-06 | 2016-12-12 | Amrona Ag | Procedimiento de inertización así como instalación para la reducción cuantitativa del oxígeno |
RU2549055C1 (ru) * | 2014-03-06 | 2015-04-20 | Открытое акционерное общество "Ассоциация разработчиков и производителей систем мониторинга" | Способ предупреждения пожаров внутри герметичных обитаемых объектов, преимущественно подводных лодок, и устройство для его осуществления |
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WO2017109069A1 (de) * | 2015-12-22 | 2017-06-29 | Amrona Ag | Sauerstoffreduzierungsanlage und verfahren zum betreiben einer sauerstoffreduzierungsanlage |
PL3184152T3 (pl) * | 2015-12-22 | 2020-03-31 | Amrona Ag | Instalacja do redukcji tlenu i sposób obsługi instalacji do redukcji tlenu |
US10933262B2 (en) | 2015-12-22 | 2021-03-02 | WAGNER Fire Safety, Inc. | Oxygen-reducing installation and method for operating an oxygen-reducing installation |
JP6813878B2 (ja) * | 2016-11-10 | 2021-01-13 | 株式会社モリタホールディングス | 消火設備及び消火方法 |
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AU2019210039B2 (en) * | 2018-01-19 | 2022-05-19 | Engineered Corrosion Solutions, Llc | Adjustable inert gas generation assembly for water-based fire protection systems |
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CN110090374B (zh) * | 2019-04-19 | 2024-08-30 | 高邮摩世勒公共安全设备有限公司 | 机车锂电储能装置防灭火装置与方法 |
UA124986C2 (uk) * | 2019-07-18 | 2021-12-22 | Василь Іванович Бурдейний | Пристрій для забезпечення оздоровчим повітрям та створення оздоровчого мікроклімату "healthy air point" |
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-
2006
- 2006-10-19 PT PT06122593T patent/PT1913978E/pt unknown
- 2006-10-19 DK DK06122593T patent/DK1913978T3/da active
- 2006-10-19 AT AT06122593T patent/ATE432113T1/de active
- 2006-10-19 EP EP06122593A patent/EP1913978B1/de active Active
- 2006-10-19 PL PL06122593T patent/PL1913978T3/pl unknown
- 2006-10-19 SI SI200630379T patent/SI1913978T1/sl unknown
- 2006-10-19 ES ES06122593T patent/ES2325092T3/es active Active
- 2006-10-19 DE DE502006003825T patent/DE502006003825D1/de active Active
-
2007
- 2007-08-02 CN CN2007800071630A patent/CN101394901B/zh not_active Expired - Fee Related
- 2007-08-02 CA CA2651502A patent/CA2651502C/en not_active Expired - Fee Related
- 2007-08-02 WO PCT/EP2007/058029 patent/WO2008046674A1/de active Application Filing
- 2007-08-02 RU RU2008142232/12A patent/RU2414266C2/ru active
- 2007-08-02 BR BRPI0706812-3A patent/BRPI0706812B1/pt not_active IP Right Cessation
- 2007-08-02 JP JP2009532742A patent/JP5045758B2/ja not_active Expired - Fee Related
- 2007-08-02 CA CA2835565A patent/CA2835565C/en not_active Expired - Fee Related
- 2007-08-02 KR KR1020087023524A patent/KR101359857B1/ko active IP Right Grant
- 2007-08-02 AU AU2007312475A patent/AU2007312475C1/en not_active Ceased
- 2007-08-02 UA UAA200810181A patent/UA92063C2/uk unknown
- 2007-10-01 PT PT07117620T patent/PT1913979E/pt unknown
- 2007-10-01 AT AT07117620T patent/ATE420699T1/de active
- 2007-10-01 ES ES07117620T patent/ES2318831T3/es active Active
- 2007-10-01 DK DK07117620T patent/DK1913979T3/da active
- 2007-10-01 DE DE502007000383T patent/DE502007000383D1/de active Active
- 2007-10-18 US US11/874,618 patent/US7673694B2/en active Active
-
2008
- 2008-06-10 HK HK08106379.0A patent/HK1115828A1/xx not_active IP Right Cessation
- 2008-08-27 NO NO20083685A patent/NO343788B1/no not_active IP Right Cessation
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