EP1913980B1 - Dispositif pour l'inertisation avec dispositif de securite - Google Patents

Dispositif pour l'inertisation avec dispositif de securite Download PDF

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Publication number
EP1913980B1
EP1913980B1 EP06122588A EP06122588A EP1913980B1 EP 1913980 B1 EP1913980 B1 EP 1913980B1 EP 06122588 A EP06122588 A EP 06122588A EP 06122588 A EP06122588 A EP 06122588A EP 1913980 B1 EP1913980 B1 EP 1913980B1
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EP
European Patent Office
Prior art keywords
inert
inerting
inert gas
control unit
gas
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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EP06122588A
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German (de)
English (en)
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EP1913980A1 (fr
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Amrona AG
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Amrona AG
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Priority to EP06122588A priority Critical patent/EP1913980B1/fr
Application filed by Amrona AG filed Critical Amrona AG
Priority to AT06122588T priority patent/ATE420700T1/de
Priority to SI200630175T priority patent/SI1913980T1/sl
Priority to PT06122588T priority patent/PT1913980E/pt
Priority to PL06122588T priority patent/PL1913980T3/pl
Priority to DK06122588T priority patent/DK1913980T3/da
Priority to ES06122588T priority patent/ES2319457T3/es
Priority to DE502006002671T priority patent/DE502006002671D1/de
Priority to CA2663031A priority patent/CA2663031C/fr
Priority to CN2007800385962A priority patent/CN101528311B/zh
Priority to RU2009118358/12A priority patent/RU2408402C1/ru
Priority to AU2007312474A priority patent/AU2007312474B2/en
Priority to BRPI0717452-7A priority patent/BRPI0717452B1/pt
Priority to UAA200903807A priority patent/UA92413C2/uk
Priority to MX2009003109A priority patent/MX2009003109A/es
Priority to PCT/EP2007/058004 priority patent/WO2008046673A1/fr
Priority to KR1020097006946A priority patent/KR101359846B1/ko
Priority to JP2009532741A priority patent/JP5021750B2/ja
Priority to US11/874,589 priority patent/US7857068B2/en
Publication of EP1913980A1 publication Critical patent/EP1913980A1/fr
Priority to HK08106378.1A priority patent/HK1115827A1/xx
Application granted granted Critical
Publication of EP1913980B1 publication Critical patent/EP1913980B1/fr
Priority to NO20091118A priority patent/NO338900B1/no
Active legal-status Critical Current
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C99/00—Subject matter not provided for in other groups of this subclass
    • 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
    • A62C2/00—Fire prevention or containment
    • A62C2/04—Removing or cutting-off the supply of inflammable material
    • 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
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways

Definitions

  • the present invention relates to an inerting device for setting and maintaining predeterminable inerting levels in a protected space to be monitored, wherein the inerting device comprises a controllable inert gas system for providing inert gas, a feed 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 the shelter, and an inert gas system control unit which is designed to control the inert gas system such that an inert gas rate provided by the inert gas system assumes a value suitable for setting and / or maintaining a first predeterminable inertization level in the shelter.
  • the inerting device comprises a controllable inert gas system for providing inert gas, a feed 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 the shelter, and an inert gas system control unit which is designed to control the inert gas system such that an iner
  • 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 comprises an inert gas system which can be controlled by means of a control unit and also an inert gas system and the protective space connected supply pipe system, via which the inert gas provided by the inert gas system is supplied to the shelter.
  • an inert gas is either a steel cylinder battery in which the inert gas is stored compressed, or a system for generating inert gases in question.
  • an inerting device to reduce the risk and extinguish fires in confined spaces based on the knowledge that in closed rooms that are only occasionally entered by humans or animals and their devices react sensitively to water, the risk of fire can be countered in 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.
  • the concentration of nitrogen in the room in question is further increased by introducing inert gas, such as nitrogen, thus reducing the oxygen content.
  • inert gas such as nitrogen
  • a extinguishing effect begins when the oxygen content drops below 15% by volume.
  • further lowering of the oxygen content to, for example, 12 vol.% May be required.
  • the risk of fire in the shelter is also effectively reduced can be.
  • basic inertization level generally means a reduced oxygen content in the room air of the shelter compared to the oxygen content of the normal ambient air, although this reduced oxygen content in principle does not endanger persons or animals, so that it involves the shelter certain precautions can still enter.
  • the setting of a basic inertization level which is used in the Unlike the so-called “Vollinertretespar” must not correspond to such a reduced proportion of oxygen, in which already occurs an effective fire extinguishing, primarily to reduce the risk of the creation of a fire in the shelter.
  • the Grundinertmaschinesclude corresponds - depending on the circumstances of the case - an oxygen content of, for example, 13 vol .-% to 15 vol.
  • 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 or 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. 15 to 18 vol .-% increase in 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 generate or provide inert gas during the period of the inspection of the protective space, so that the inert gas with a corresponding inert gas rate to the shelter is fed there to keep the inerting (possibly with a certain control range) at the walkability 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 call for 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 inert gas rate to be provided by the inert gas system can depend, in particular, on the inerting level to be set in the shelter (accessibility level, basic inerting level, full inertisation level), the air exchange rate of the shelter, but also on other parameters, such as the temperature or pressure in the shelter.
  • the inert gas system used in the inerting apparatus it is required that it be designed to be able to provide inert gas at all times so that a predetermined level of inerting can be maintained in the shelter.
  • the inert gas system should be able to provide inert gas with different inert gas rates at any time, depending on the respective requirements, in order to be able to compensate for leaks in the shelter, possible inert gas losses through air conditioning systems or ventilation systems in the shelter or through goods removal from the shelter.
  • the inert gas system should be designed in terms of its capacity to be able to provide a sufficient inert gas rate, so that within a desired time, a predetermined inerting level can be re-adjusted.
  • an inert gas system which can be controlled by means of an inert gas system control unit is usually suitable for this purpose, wherein the inert gas rate provided by the inert gas system can be correspondingly regulated via the inert gas system control unit.
  • the present invention is based on the problem that when a fault in the control of such an inert gas system control unit or failure of the inert gas system control unit can not be ensured that, for example, at the time of inspection of the shelter the inerting in the shelter can be reliably maintained at the predetermined walkability level.
  • This is particularly problematical if, during the inspection of the protective space, the inert gas rate provided by the inert gas system is greater than the inert gas rate necessary to maintain the accessibility level. In such a case, namely, the oxygen content in the room air of the shelter would fall below the walkability level, which is questionable from a medical point of view, the inspection of the shelter.
  • the present invention has the object, an inerting of the type mentioned further such that can be reliably ensured that in the case of a visit of a normally at a Grundinertmaschinestri permanently inertized shelter the inertization level set in the shelter even at a fault of Control of the inert gas system control unit or in case of failure of the inert gas system control unit can be reliably maintained at the walkability level.
  • the object of the present invention is to specify an inerting device with which a level of inerting that can be specified in a protected area to be monitored can be set and maintained in a reliable manner, even in the event of a fault or failure of an inert gas system control unit or in one case if the inert gas system control unit is not designed to regulate, with a sufficient resolution or accuracy, the inert gas rate provided by the inert gas system.
  • the term "disturbance of the control of the inert gas system” and “failure of the inert gas system control unit” is generally understood to mean a state in which the inert gas system control unit and / or the inert gas system are - for whatever reason - unable or are basically not designed that from the inert gas system with sufficient resolution or accuracy required for setting and / or for keeping as accurate as possible inert inert gas inert gas can be provided.
  • the solution according to the invention provides a safety measure for shelters in order to ensure that, in a shelter space rendered inert to a walkability level, no oxygen concentration hazardous to persons is achieved, even if the nitrogen plant is affected by an error (for example in the activation) with the introduction of inert gas should not stop or if the nitrogen plant should not be designed by nature to provide inert gas at a non-zero, reduced rate.
  • the solution according to the invention ensures that the nitrogen plant is designed such that it can supply a sufficient volume flow in order to be able to restore and permanently maintain the basic inerting level within a desired time, for example after the inspection room has been inspected.
  • the inert gas system must be able to provide an inert gas rate to compensate for the room leaks, and any losses from the air conditioning system or from the removal of goods.
  • the solution according to the invention is not only suitable for reliably maintaining or adjusting a walkability level in the protected space despite disrupting the activation of the inert gas system, but rather any inerting level to be set in the shelter, such as a basic inerting level or a full inertization level, can be reliably maintained with the safety device ,
  • the safety device reduces the maximum inert gas rate supplied to the shelter so that the oxygen content in the shelter is not the second can fall below specified inerting level.
  • the reduction of the inert gas rate which can be supplied to the protection space can, for example, be suitably suitably limited, even if the control unit and / or sensors (in particular volumetric flow sensors and / or inert gas or oxygen sensors) should fail.
  • the second predeterminable inerting level is the walkability level, it can be ensured with the solution according to the invention that, at the time of inspection of the protective space, the oxygen content in the room atmosphere can not in principle assume a harmful value, even if the activation of the inert gas system is disturbed.
  • This advantageous realization of the safety device is characterized in particular by its simple construction, which in particular also simplifies the retrofitting of conventional inerting systems with such a
  • the safety device is composed only of a few, known in principle from the prior art and tested components together, which is not only for cost reasons of advantage, but also ensures a reliable operation of the safety device. It would be conceivable here to integrate the safety device control unit as a control module, for example as an additional software module, in the already existing inert gas system control unit. Of course, it is also conceivable to provide the safety device control unit separately from the inert gas system control unit.
  • the inert gas system control unit In principle, however, it should be possible for an operator to specify in the inert gas system control unit the inerting level to be set and maintained in the protective space. However, it would also be possible for the control unit to independently control the inert gas system, for example in accordance with a predetermined event sequence, in order to set the desired inerting levels in the protective room.
  • the safety device associated with the safety device control unit is to be considered that it can communicate with the inert gas system control unit to properly control the corresponding shut-off valves in case of failure.
  • first and the second shut-off valve With regard to the first and the second shut-off valve, it should be noted that these two valve devices can be provided either as separate components in the inerting device; However, it would also be possible to use a three-way valve arrangement which assumes the functions of the first and the second shut-off valve as a single component. Suitable valve arrangements are known from the prior art and are not explained in detail here.
  • bypass piping system according to the last-mentioned preferred realization of the safety device according to the invention, it would be conceivable that this has a section with an effective flow cross-section, which is designed to regulate the inert gas rate supplied to the shelter via the bypass piping system such that the second predetermined inerting level is set and / or maintained in the shelter. So it is conceivable, for example, that said section of the bypass piping system, which is either limited to only one area of the bypass piping system or even extends over the entire bypass piping system, fixed in advance with respect to its effective flow cross-section of the air exchange rate of the shelter is set.
  • the effective flow cross section of the section of the bypass piping system is adjustable by means of the safety device control unit to better match the inert gas rate supplied to the shelter via the bypass piping system to the air exchange rate of the shelter.
  • this inventive development in which the effective flow cross-section of the section is adjustable, characterized in that in the shelter different Inertretescludes that can be pre-set by the user, adjusted and / or in particular can be kept accurate.
  • this has a volumetric flow controller that can be controlled by the safety device control unit for limiting the inert gas rate supplied to the protective space via the bypass piping system.
  • the volumetric flow controller assumes the function of a flow restrictor, so that in a simple but effective way the inert gas rate supplied to the shelter via the bypass piping system can be adjusted.
  • the technical realization of the volumetric flow controller will not be discussed in detail here. Basically, in principle, all known from the prior art devices can be used, which can serve to adjust a fluid volume flow.
  • the inerting device further comprises at least one oxygen Detecting means for detecting the oxygen content in the room air of the shelter, wherein the Inertgasanlagen control unit and / or the safety device control unit are designed to set the inert gas supplied to the shelter in dependence on the measured in the room air of the shelter oxygen content.
  • the oxygen detection device prefferably emits a corresponding signal to the corresponding control units continuously or at predetermined times, as a result either the inert gas system or the volumetric flow controller are controlled accordingly in order always to supply the protective space with the inert gas rate necessary for maintaining the inerting level set in the protective 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 or safety device used can be selected.
  • a control range is ⁇ 0.1 to 0.4 vol%.
  • other control range sizes are also conceivable.
  • the holding of the oxygen content on the vorgaren certain inerting be made depending on a previously performed calculation, in which calculation certain design parameters of the shelter should redesigneiesen, such as those for the shelter applicable air exchange rate, in particular the n 50 value of the shelter, and / or the pressure difference between the shelter and the environment.
  • an aspirative device is suitable as oxygen detection device.
  • 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.
  • an oxygen detector which emits a corresponding detection signal to the corresponding control unit.
  • a non-contact (optical) oxygen measurement as oxygen detection device.
  • a non-contact optical measuring method for detecting the oxygen content in the shelter would be particularly applicable to rooms that can not be equipped with conventional (especially wired) oxygen detectors, for example, due to their design.
  • the oxygen detection device is parallel in number operating oxygen detectors, wherein the inert gas system control unit and / or the safety device control unit are designed to adjust the inert gas rate supplied to the protective space depending on each of the oxygen components measured with the respective oxygen detectors in the room air of the shelter.
  • sensors are used for the multiplicity of oxygen sensors operating in parallel, which are based at least in part on different technologies for detecting the oxygen content in the room air of the protected space, such as paramagnetic sensors, zirconium dioxide sensors, PSP sensor systems, etc.
  • the inert gas system control unit and / or the safety device control unit are designed to output a fault message and / or an emergency stop signal for switching off the inert gas system, if at least one oxygen detector indicates an oxygen content in the room air of the protective room With respect to the oxygen components measured with the other oxygen detectors has a deviation that exceeds a certain predetermined value.
  • the inert gas system comprises an ambient air compressor and an inert gas generator connected thereto, wherein the inert gas system control unit is designed to control the air flow rate of the ambient air compressor such that the inert gas rate provided by the inert gas system is set to the value suitable for setting and / or holding 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 to have an inert gas pressure storage container, the inert gas system control unit being designed to actuate a controllable pressure reducer associated with the inert gas pressure storage container and connected to the supply pipe system in such a way as to provide the inert gas rate provided by the inert gas system to set the value suitable for setting and / or holding the pre-eminable first inertization level.
  • the Inertgastik Lance can be provided in combination with the aforementioned ambient air compressor and inert gas generator or alone.
  • the inerting device further comprises a pressure-dependent valve device which is open in a first prescribable pressure range, for example between 1 to 4 bar and a filling of the inert gas pressure storage container by means of the inert gas system allowed.
  • the safety device has a bypass piping system connected to the inert gas pressure accumulator tank.
  • the solution according to the invention is not limited to setting or maintaining the accessibility level in the protective space in the event of a fault in the control of the inert gas system.
  • the claimed inerting device invention is designed so that the first and / or the second predeterminable inerting level can be a Vollinertmaschinesforementioned, a Grundinertretesclude or a walkability level.
  • Fig. 1 1 schematically shows a first preferred embodiment of the inerting device 1 according to the invention for setting and maintaining predeterminable inerting levels in a protective space 2 to be monitored.
  • the inerting device 1 consists of an inert gas system, which has an ambient air compressor 10 and an inert gas generator 11 connected thereto.
  • an inert gas system control unit 30 is provided, which is designed to control the air feed rate of the ambient air compressor 10 via corresponding control signals. In this way, the inert gas rate provided by the inert gas system 10, 11 can be determined at least partially by means of the inert gas system control unit 30.
  • the inert gas generated by the inert gas system 10, 11 is supplied via a feed pipe system 20 to a protected space 2 to be monitored; Of course, however, several shelters may be connected to the supply pipe system. In detail, the supply of the inert gas provided with the inert gas system 10, 11 via corresponding outlet nozzles 21, which are arranged at a suitable location in the shelter 2.
  • the inert gas advantageously nitrogen
  • the inert gas generator or nitrogen generator 11 functions, for example, according to the known from the prior art membrane or PSA technology to produce nitrogen-enriched air with, for example, 90 vol .-% to 95 vol .-% nitrogen content.
  • This nitrogen-enriched air serves as an inert gas in the preferred embodiment, which is supplied to the shelter 2 via the supply pipe system 20.
  • the enriched in the production of inert gas oxygen-enriched air is discharged via another pipe system to the outside.
  • the inert gas system control unit 30 depending on an example entered by the user in the control unit 30 inerting the inert gas system 10, 11 controls so that the provided by this system 10, 11 inert gas rate assumes a value for setting and / or is suitable for maintaining the predetermined inertization level in the shelter 2.
  • the selection of the desired inertization level at the inert gas turbine control unit 30 may be e.g. be done with a key switch or password protected on a (not explicitly shown) keypad. Of course, however, it is also conceivable here that the selection of the inertization level takes place according to a predetermined sequence of events.
  • the basic inerting level is selected at the inert gas system control unit 30, which has been predetermined in advance taking into consideration the characteristic values of the protection space 2, a three-way valve 41, 42 which is associated with the supply pipe system 20, on direct transmission of the inert gas into the shelter 2 switched.
  • the shelter 2 when the shelter 2 must be entered by persons, which is necessary, for example, when goods have to be removed from the shelter 2 or when certain maintenance operations are to be carried out in the shelter 2, it is necessary to set the permanent inertization in the shelter 2 from the basic inertization level to raise to a walkability level, so that a visit to the shelter 2 without special precautions is medically safe.
  • the accessibility level corresponds to an oxygen content in the room air of the protective space 2 which is higher than the oxygen content corresponding to the basic inerting level.
  • the inert gas system control unit 30 sends a corresponding signal to the three-way valve arrangement 41, 42, consequently with the supply pipe system 20 provided direct connection between the inert gas system 10, 11 and the shelter 2 is interrupted, so that the inert gas is diverted to a bypass piping 43.
  • the bypass piping system 43 in the preferred embodiment serves to provide a bypass connection between the inert gas system 10, 11 and the shelter 2, the bypass connection bridging the portion of the supply pipe system 20 which is controlled via the controllable shut-off valve associated with the supply pipe system 20 controllable shut-off valve 41) is controlled.
  • bypass piping system 43 after bypassing the supply pipe system 20 associated shut-off valve 41 opens again in the supply pipe 20, so that the supplied via the bypass piping 43 to the shelter 2 inert gas via the same inert gas 21 can be supplied.
  • the bypass piping system 43 has its own, separate inert gas nozzles in the shelter 2.
  • the bypass Pipe system 43 in a section 43 a of the bypass piping 43 associated with a controllable volume flow controller 44.
  • This volume flow controller 44 is used for limiting the inert gas rate supplied to the shelter 2 via the bypass piping 43.
  • the volumetric flow control 44 can be appropriately controlled either by the inert gas system control unit 30 or a safety device control unit 40 independent of the inert gas system control unit 30.
  • the safety device control unit 40 is in the preferred embodiment designed as a stand-alone control module in the inert gas system control unit 30.
  • both control units 30, 40 spatially separate from each other in different hardware modules.
  • both the inert gas system control unit 30 and the safety device control unit 40 are designed so that the user can enter a desired inertization level therein.
  • the inert gas system 10, 11 and / or the volumetric flow controller 44 are actuated accordingly by the control units 30 and 40, thus the protective space 2 the inert gas rate necessary for setting and maintaining the predetermined inertization level can be supplied.
  • a safety device is provided, which in case of failure of the control of the inert gas system 10, 11 via the inert gas system control unit 30 or, in the event of a failure of the inert gas system control unit 30, in principle sets the inert gas rate supplied to the protection space 2 such that the predetermined inerting level, such as the basic inerting level or the accessibility level, can be reliably set and / or kept accurate in the protection space 2 ,
  • the safety device is always activated when the permanently inertized shelter 2 is to be raised from the GrundinertmaschinesRIC to a walkability level, or more generally, if an inerting level change is to be performed.
  • the inert gas system 10, 11 can be switched on or off via the inert gas system control unit 30, during the time within which, for example, the accessibility level is set, the inert gas quantity necessary for the protective space 2 must be set and supplied via the safety device.
  • Fig. 2 a second preferred embodiment of the inerting device 1 according to the invention is shown.
  • the in Fig. 1 designed as a three-way valve 41, 42 valve assembly as two separate two-way valve assemblies 41 and 42 executed.
  • a first by means of the inert gas system control unit 30 and / or by means of the safety device control unit controllable shut-off valve 41 is assigned to the supply pipe 20 in order to interrupt the means of the supply pipe system 20 between the inert gas system 10, 11 and the shelter 2 can be made connection.
  • bypass piping system 43 is associated with a second preferably by means of the safety device control unit 40 controllable shut-off valve 42 for establishing a bypass connection between the inert gas system 10, 11 and the protection area 2, wherein the bypass connection bridges the first controllable shut-off valve 41.
  • a controllable volumetric flow controller 44 is provided in the bypass piping 43 .
  • one of the inert gas system 10, 11 associated inert gas pressure storage container 12 is provided.
  • This accumulator tank 12 is connected to the Intergasgenerator 11 of the inert gas system connected via a preferably pressure-dependent operating valve device 14.
  • This pressure-dependent valve device 14 is preferably designed such that it is open in a first predeterminable pressure range, for example up to a pressure of 4 bar, and allows filling of the inert gas pressure reservoir 12 by means of the inert gas system 10, 11.
  • inert gas pressure storage container 12 By providing such an inert gas pressure storage container 12, it is possible to temporarily store, for example, inert gas continuously generated by the inert gas system 10, 11, if the amount of inert gas required to set or maintain a predeterminable inertization level is less than that actually generated or provided at the time inert gas.
  • the inerting device has a fresh-air supply device 60, via which the protective space 2 can be supplied with fresh air or oxygen in a regulated manner so as to be able to set or maintain a predetermined inerting level in the protective space 2.
  • the fresh air supply device 60 has a correspondingly controllable valve 61, which is opened or closed as required by the control unit 30 or 40.
  • the fresh air supply means 60 may comprise either a nozzle system 62 separate from the inert gas supply nozzle system 21, as shown in FIG Fig. 2 is indicated, but it would also be possible for the fresh air supply means 60, the inert gas supply nozzle system 21 is used.

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  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Pipeline Systems (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
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  • Mechanical Treatment Of Semiconductor (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Claims (15)

  1. Dispositif d'inertisation (1) permettant de régler et de maintenir des niveaux d'inertisation prédéfinissables dans un abri protecteur (2) à surveiller, avec :
    - une installation de gaz inerte (10, 11, 12) pouvant être actionnée pour mettre à disposition un gaz inerte ;
    - un système de tuyau d'alimentation (20) relié à l'installation de gaz inerte (10, 11, 12), lequel peut être raccordé à l'abri protecteur (2) afin de conduire le gaz inerte mis à disposition par l'installation de gaz inerte (10, 11, 12) dans l'abri protecteur (2) ; et
    - une unité de commande d'installation de gaz inerte (30), laquelle est conçue pour actionner l'installation de gaz inerte (10, 11, 12) de telle sorte qu'un taux de gaz inerte mis à disposition par l'installation de gaz inerte (10, 11, 12) prenne une valeur qui est appropriée pour régler et/ou maintenir un premier niveau d'inertisation prédéfinissable dans l'abri protecteur (2),
    caractérisé en ce que
    le dispositif d'inertisation (1) comprend en outre un dispositif de sécurité (40, 41, 42, 43) qui est conçu pour réguler le taux de gaz inerte alimenté dans l'abri protecteur (2) lors d'une panne de l'actionnement de l'installation de gaz inerte (10, 11, 12) ou lors d'une défaillance de l'unité de commande d'installation de gaz inerte (30) de telle sorte que, dans l'abri protecteur (2), un second niveau d'inertisation prédéfinissable soit réglé et/ou maintenu, le dispositif de sécurité (40, 41, 42, 43) comprenant ce qui suit :
    - au moins une première vanne d'arrêt (41) associée au système de tuyau d'alimentation (20), qui peut être actionnée afin de couper la liaison pouvant être établie entre l'installation de gaz inerte (10, 11, 12) et l'abri protecteur (2) au moyen du système de tuyau d'alimentation (20) ;
    - au moins un système de conduite de dérivation (43) avec une seconde vanne d'arrêt (42) pouvant être actionnée afin d'établir une liaison de dérivation entre l'installation de gaz inerte (10, 11, 12) et l'abri protecteur (2), la liaison de dérivation court-circuitant la première vanne d'arrêt (41) pouvant être actionnée, et
    - une unité de commande de dispositif de sécurité (40), laquelle est conçue pour fermer la première vanne d'arrêt (41) et ouvrir la seconde vanne d'arrêt (42) lors d'une panne de l'actionnement de l'installation de gaz inerte (10, 11, 12) ou lors d'une défaillance de l'unité de commande d'installation de gaz inerte (30), le système de conduite de dérivation (43) étant conçu pour réguler le taux de gaz inerte conduit dans l'abri protecteur (2) par l'intermédiaire du système de conduite de dérivation (43) de telle sorte que, dans l'abri protecteur (2), le second niveau d'inertisation prédéfinissable soit réglé et/ou maintenu.
  2. Dispositif d'inertisation selon la revendication 1, dans lequel le dispositif de sécurité (40, 41, 42, 43) est conçu de façon à ce que, dans un cas où le second niveau d'inertisation prédéfinissable doit être réglé ou maintenu, le dispositif de sécurité (40, 41, 42, 43) réduise le taux de gaz inerte alimenté au maximum dans l'abri protecteur (2), de telle sorte que la part d'oxygène dans l'abri protecteur (2) ne puisse pas être inférieure au second niveau d'inertisation prédéfinissable.
  3. Dispositif d'inertisation selon l'une quelconque des revendications précédentes, dans lequel le système de conduite de dérivation (43) comprend un tronçon (43a) avec une section d'écoulement effective, qui est conçu pour réguler le taux de gaz inerte alimenté dans l'abri protecteur (2) par l'intermédiaire du système de conduite de dérivation (43), de telle sorte que le second niveau d'inertisation prédéfinissable soit réglé et/ou maintenu dans l'abri protecteur (2).
  4. Dispositif d'inertisation selon la revendication 3, dans lequel la section d'écoulement effective du tronçon (43a) peut être réglée au moyen de l'unité de commande de dispositif de sécurité (40).
  5. Dispositif d'inertisation selon l'une quelconque des revendications précédentes, dans lequel le système de conduite de dérivation (43) comprend un régulateur de débit volumique (44) pouvant être actionné par l'unité de commande de dispositif de sécurité (40) afin de limiter le taux de gaz inerte alimenté dans l'abri protecteur (2) par l'intermédiaire du système de conduite de dérivation (43).
  6. Dispositif d'inertisation selon l'une quelconque des revendications précédentes, lequel comprend en outre au moins un dispositif de détection d'oxygène (50) permettant de détecter la part d'oxygène dans l'air ambiant de l'abri protecteur (2), l'unité de commande d'installation de gaz inerte (30) et/ou l'unité de commande de dispositif de sécurité (40) étant conçues pour régler le taux de gaz inerte alimenté dans l'abri protecteur (2) en fonction de la part d'oxygène mesurée dans l'air ambiant de l'abri protecteur (2).
  7. Dispositif d'inertisation selon la revendication 6, dans lequel le dispositif de détection d'oxygène (50) comprend une pluralité de détecteurs d'oxygène travaillant en parallèle, l'unité de commande d'installation de gaz inerte (30) et/ou l'unité de commande de dispositif de sécurité (40) étant conçues pour régler le taux de gaz inerte alimenté dans l'abri protecteur (2) en fonction de chacune des parts d'oxygène mesurées dans l'air ambiant de l'abri protecteur (2) à l'aide des détecteurs d'oxygène respectifs.
  8. Dispositif d'inertisation selon la revendication 7, dans lequel l'unité de commande d'installation de gaz inerte (30) et/ou l'unité de commande de dispositif de sécurité (40) sont conçues pour émettre un message de défaillance et/ou un signal d'arrêt d'urgence permettant de couper l'installation de gaz inerte (10, 11, 12) lorsque au moins un détecteur d'oxygène affiche une part d'oxygène dans l'air ambiant de l'abri protecteur (2) qui présente, par rapport aux parts d'oxygène mesurées à l'aide des autres détecteurs, une déviation qui est supérieure à une valeur déterminée prédéfinissable.
  9. Dispositif d'inertisation selon l'une quelconque des revendications 6 à 8, dans lequel le dispositif de détection d'oxygène (50) comprend un dispositif de détection d'oxygène aspiratif.
  10. Dispositif d'inertisation selon l'une quelconque des revendications précédentes, lequel comprend en outre un dispositif d'alimentation en air frais (60) permettant l'introduction régulée d'air frais et/ou d'oxygène dans l'abri protecteur (2), le dispositif d'alimentation en air frais (60) pouvant être actionné au moyen de l'unité de commande d'installation de gaz inerte (30) et/ou de l'unité de commande de dispositif de sécurité (40), de préférence en fonction de la part d'oxygène dans l'air ambiant de l'abri protecteur (2).
  11. Dispositif d'inertisation selon l'une quelconque des revendications précédentes, dans lequel l'installation de gaz inerte (10, 11, 12) comprend un compresseur d'air ambiant (10) et un générateur de gaz inerte (11) relié à celui-ci, l'unité de commande d'installation de gaz inerte (30) étant conçue pour commander le débit d'air du compresseur d'air ambiant (10) de telle sorte que le taux de gaz inerte mis à disposition par l'installation de gaz inerte (10, 11, 12) soit fixé à la valeur appropriée pour régler et/ou maintenir le premier niveau d'inertisation prédéfinissable.
  12. Dispositif d'inertisation selon l'une quelconque des revendications précédentes, dans lequel l'installation de gaz inerte (10, 11, 12) comprend un récipient d'accumulation de pression de gaz inerte (12), l'unité de commande d'installation de gaz inerte (30) étant conçue pour commander un réducteur de pression pouvant être actionné, associé au récipient d'accumulation de pression de gaz inerte (12) et relié au système de tuyau d'alimentation (20), afin d'établir le taux de gaz inerte mis à disposition par l'installation de gaz inerte (10, 11, 12) à la valeur appropriée pour régler et/ou maintenir le premier niveau d'inertisation prédéfinissable.
  13. Dispositif d'inertisation selon la revendication 12, lequel comprend en outre un dispositif à vanne (14) dépendant de la pression qui est ouvert dans une première gamme de pression prédéfinissable et permet un remplissage du récipient d'accumulation de pression de gaz inerte (12) au moyen de l'installation de gaz inerte (10, 11, 12).
  14. Dispositif d'inertisation selon la revendication 13, dans lequel le dispositif de sécurité comprend un système de conduite de dérivation (43) relié au récipient d'accumulation de pression de gaz inerte (12) .
  15. Dispositif d'inertisation selon l'une quelconque des revendications précédentes, dans lequel le premier et/ou le second niveau d'inertisation prédéfinissable est un niveau d'inertisation totale, un niveau d'inertisation de base ou un niveau d'inertisation d'accessibilité.
EP06122588A 2006-10-19 2006-10-19 Dispositif pour l'inertisation avec dispositif de securite Active EP1913980B1 (fr)

Priority Applications (21)

Application Number Priority Date Filing Date Title
AT06122588T ATE420700T1 (de) 2006-10-19 2006-10-19 Inertisierungsvorrichtung mit sicherheitseinrichtung
SI200630175T SI1913980T1 (sl) 2006-10-19 2006-10-19 Interzacijski sistem z varnostno napravo
PT06122588T PT1913980E (pt) 2006-10-19 2006-10-19 Dispositivo de indução de inércia com instalação de segurança
PL06122588T PL1913980T3 (pl) 2006-10-19 2006-10-19 Urządzenie inertyzujące z urządzeniem zabezpieczającym
DK06122588T DK1913980T3 (da) 2006-10-19 2006-10-19 Inertiseringsanordning med sikkerhedsindretning
ES06122588T ES2319457T3 (es) 2006-10-19 2006-10-19 Dispositivo de inertizacion con sistema de seguridad.
DE502006002671T DE502006002671D1 (de) 2006-10-19 2006-10-19 Inertisierungsvorrichtung mit Sicherheitseinrichtung
EP06122588A EP1913980B1 (fr) 2006-10-19 2006-10-19 Dispositif pour l'inertisation avec dispositif de securite
JP2009532741A JP5021750B2 (ja) 2006-10-19 2007-08-02 安全機構を備えた不活化装置
RU2009118358/12A RU2408402C1 (ru) 2006-10-19 2007-08-02 Устройство для инертирования с предохранительным устройством
CA2663031A CA2663031C (fr) 2006-10-19 2007-08-02 Dispositif d'inertisation avec equipement de securite
BRPI0717452-7A BRPI0717452B1 (pt) 2006-10-19 2007-08-02 Dispositivo de inertização com dispositivo de segurança
UAA200903807A UA92413C2 (uk) 2006-10-19 2007-08-02 Пристрій для інертизації, який включає засіб безпеки
MX2009003109A MX2009003109A (es) 2006-10-19 2007-08-02 Dispositivo inertizador que comprende medios de seguridad.
PCT/EP2007/058004 WO2008046673A1 (fr) 2006-10-19 2007-08-02 Dispositif d'inertisation avec équipement de sécurité
KR1020097006946A KR101359846B1 (ko) 2006-10-19 2007-08-02 안전 디바이스를 구비한 불활성 장치
CN2007800385962A CN101528311B (zh) 2006-10-19 2007-08-02 包括安全装置的惰性化装置
AU2007312474A AU2007312474B2 (en) 2006-10-19 2007-08-02 Inerting arrangement with safety device
US11/874,589 US7857068B2 (en) 2006-10-19 2007-10-18 Inertization device with safety device
HK08106378.1A HK1115827A1 (en) 2006-10-19 2008-06-10 Inerting device with safety device
NO20091118A NO338900B1 (no) 2006-10-19 2009-03-13 Initieringsarrangement med sikkerhetsinnretning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06122588A EP1913980B1 (fr) 2006-10-19 2006-10-19 Dispositif pour l'inertisation avec dispositif de securite

Publications (2)

Publication Number Publication Date
EP1913980A1 EP1913980A1 (fr) 2008-04-23
EP1913980B1 true EP1913980B1 (fr) 2009-01-14

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Family Applications (1)

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EP06122588A Active EP1913980B1 (fr) 2006-10-19 2006-10-19 Dispositif pour l'inertisation avec dispositif de securite

Country Status (21)

Country Link
US (1) US7857068B2 (fr)
EP (1) EP1913980B1 (fr)
JP (1) JP5021750B2 (fr)
KR (1) KR101359846B1 (fr)
CN (1) CN101528311B (fr)
AT (1) ATE420700T1 (fr)
AU (1) AU2007312474B2 (fr)
BR (1) BRPI0717452B1 (fr)
CA (1) CA2663031C (fr)
DE (1) DE502006002671D1 (fr)
DK (1) DK1913980T3 (fr)
ES (1) ES2319457T3 (fr)
HK (1) HK1115827A1 (fr)
MX (1) MX2009003109A (fr)
NO (1) NO338900B1 (fr)
PL (1) PL1913980T3 (fr)
PT (1) PT1913980E (fr)
RU (1) RU2408402C1 (fr)
SI (1) SI1913980T1 (fr)
UA (1) UA92413C2 (fr)
WO (1) WO2008046673A1 (fr)

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ES2363276T3 (es) * 2008-12-12 2011-07-28 Amrona Ag Método de inertización o extinción para impedir y/o extinguir incendios y sistema de inertización para implementar el método.
EP2462994B1 (fr) 2010-12-10 2013-09-04 Amrona AG Procédé d'inertisation de prévention contre les incendies et/ou d'extinction d'incendies, ainsi qu'installation d'inertisation destinée à l'exécution du procédé
US20120217028A1 (en) * 2011-02-24 2012-08-30 Kidde Technologies, Inc. Active odorant warning
CN103691079A (zh) * 2013-12-26 2014-04-02 浙江造船有限公司 一种海工船低闪点系统惰性气体保护装置
RU2712378C2 (ru) * 2015-12-22 2020-01-28 Амрона Аг Система снижения кислорода и способ эксплуатации системы снижения кислорода
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
DE102019117651A1 (de) * 2019-07-01 2021-01-07 Wagner Group Gmbh Verfahren zur Inbetriebnahme einer Sauerstoffreduzierungsanlage, computerlesbares-Speichermedium und Sauerstoffreduzierungsanlage
EP3912688A1 (fr) 2020-05-19 2021-11-24 L'air Liquide, Société Anonyme Pour L'Étude Et L'exploitation Des Procédés Georges Claude Dispositif d'inertage sécurisé
CN112363555B (zh) * 2020-11-05 2022-11-29 天津森罗科技股份有限公司 一种中药材气调养护杀虫库房安全保护系统

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JP3397382B2 (ja) * 1993-08-03 2003-04-14 能美防災株式会社 二酸化炭素消火設備
US6314754B1 (en) * 2000-04-17 2001-11-13 Igor K. Kotliar Hypoxic fire prevention and fire suppression systems for computer rooms and other human occupied facilities
DE19811851C2 (de) * 1998-03-18 2001-01-04 Wagner Alarm Sicherung Inertisierungsverfahren zur Brandverhütung und -löschung in geschlossenen Räumen
DE10205373B4 (de) * 2002-02-09 2007-07-19 Aloys Wobben Brandschutz
DE10249126B4 (de) * 2002-10-22 2004-08-19 Minimax Gmbh Verfahren und Anlage zum Erzeugen einer sauerstoffarmen Atmosphäre
US6871802B2 (en) * 2003-02-27 2005-03-29 Fike Corporation Self-modulating inert gas fire suppression system
JP3903115B2 (ja) * 2003-05-27 2007-04-11 消防庁長官 火災防止システム
JP4679113B2 (ja) * 2004-10-29 2011-04-27 株式会社竹中工務店 低酸素濃度防火システム
DK1683548T3 (da) * 2005-01-21 2013-02-11 Amrona Ag Fremgangsmåde til inertisering for at undgå brand

Also Published As

Publication number Publication date
ATE420700T1 (de) 2009-01-15
KR101359846B1 (ko) 2014-02-06
AU2007312474B2 (en) 2011-11-24
JP2010506640A (ja) 2010-03-04
NO338900B1 (no) 2016-10-31
DK1913980T3 (da) 2009-05-11
BRPI0717452A2 (pt) 2013-12-24
DE502006002671D1 (de) 2009-03-05
ES2319457T3 (es) 2009-05-07
SI1913980T1 (sl) 2009-04-30
RU2009118358A (ru) 2010-11-20
UA92413C2 (uk) 2010-10-25
CN101528311A (zh) 2009-09-09
BRPI0717452B1 (pt) 2018-04-24
EP1913980A1 (fr) 2008-04-23
AU2007312474A1 (en) 2008-04-24
PL1913980T3 (pl) 2009-08-31
NO20091118L (no) 2009-05-06
CA2663031C (fr) 2014-09-30
CA2663031A1 (fr) 2008-04-24
WO2008046673A1 (fr) 2008-04-24
KR20090079884A (ko) 2009-07-22
MX2009003109A (es) 2009-04-06
HK1115827A1 (en) 2008-12-12
US7857068B2 (en) 2010-12-28
JP5021750B2 (ja) 2012-09-12
PT1913980E (pt) 2009-03-19
WO2008046673A8 (fr) 2008-06-19
RU2408402C1 (ru) 2011-01-10
US20080156505A1 (en) 2008-07-03
CN101528311B (zh) 2012-06-27

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