EP1911498B1 - Mehrstufiges Inertisierungsverfahren zur Brandverhütung und Brandlöschung in geschlossenen Räumen - Google Patents

Mehrstufiges Inertisierungsverfahren zur Brandverhütung und Brandlöschung in geschlossenen Räumen Download PDF

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EP1911498B1
EP1911498B1 EP06122142A EP06122142A EP1911498B1 EP 1911498 B1 EP1911498 B1 EP 1911498B1 EP 06122142 A EP06122142 A EP 06122142A EP 06122142 A EP06122142 A EP 06122142A EP 1911498 B1 EP1911498 B1 EP 1911498B1
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Prior art keywords
level
fire
oxygen content
inertization
protected room
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EP06122142A
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German (de)
English (en)
French (fr)
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EP1911498A1 (de
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Amrona AG
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Amrona AG
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Priority to PT06122142T priority Critical patent/PT1911498E/pt
Application filed by Amrona AG filed Critical Amrona AG
Priority to AT06122142T priority patent/ATE421361T1/de
Priority to EP06122142A priority patent/EP1911498B1/de
Priority to SI200630181T priority patent/SI1911498T1/sl
Priority to PL06122142T priority patent/PL1911498T3/pl
Priority to DE502006002728T priority patent/DE502006002728D1/de
Priority to DK06122142T priority patent/DK1911498T3/da
Priority to ES06122142T priority patent/ES2318686T3/es
Priority to JP2009524999A priority patent/JP5322233B2/ja
Priority to PCT/EP2007/058027 priority patent/WO2008043586A1/de
Priority to KR1020087019772A priority patent/KR101359885B1/ko
Priority to CN2007800040365A priority patent/CN101378811B/zh
Priority to BRPI0707053A priority patent/BRPI0707053B1/pt
Priority to UAA200808906A priority patent/UA92053C2/uk
Priority to CA2637601A priority patent/CA2637601C/en
Priority to AU2007306567A priority patent/AU2007306567B2/en
Priority to RU2008130935/12A priority patent/RU2405605C2/ru
Priority to US11/870,871 priority patent/US7726410B2/en
Publication of EP1911498A1 publication Critical patent/EP1911498A1/de
Priority to HK08105680A priority patent/HK1116119A1/xx
Priority to NO20084169A priority patent/NO339386B1/no
Application granted granted Critical
Publication of EP1911498B1 publication Critical patent/EP1911498B1/de
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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
    • 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

Definitions

  • the present invention relates to an inerting method for reducing the risk and extinguishing fires in a shelter, wherein the oxygen content in the shelter is first lowered to a certain baseline inertial level, and then the oxygen content in the shelter is maintained continuously at the basic inertization level.
  • Such an inerting process is basically known from the prior art.
  • German patent DE 198 11 851 C2 an inerting method for reducing the risk and extinguishing indoor fires and a device for carrying out the method described.
  • this prior art it is envisaged to reduce the oxygen content in an enclosed space (hereinafter called "shelter") to a certain basic inerting level and, in the event of a fire, to further rapidly lower the oxygen content to a certain level of full inertization, thereby effectively extinguishing a fire To allow the lowest possible storage capacity for inert gas cylinders.
  • This inertization method is based on the knowledge that in enclosed spaces which are only occasionally entered by humans or animals and whose facilities react sensitively to the action of water, the risk of fire can be counteracted by the fact that the oxygen concentration in the affected area has a value of approximately 12% by volume is lowered. At this oxygen concentration, the most combustible materials stop burning.
  • the main areas of application are EDP areas, electrical switch and distribution rooms, enclosed facilities as well as storage areas with high-quality assets.
  • the extinguishing effect resulting from this 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 nitrogen concentration in the relevant space is further increased, thereby reducing the oxygen content. It is known that a extinguishing effect begins when the oxygen content drops below 15% by volume. Depending on the flammable materials present in the shelter, a further lowering of the oxygen content to the mentioned 12 vol.% May be required.
  • base inertization level means a reduced oxygen level compared to the oxygen level of normal ambient air, but this reduced level of oxygen does not present any danger to persons or animals, so that they can easily enter the shelter.
  • the basic inerting level corresponds, for example, to an oxygen content in the protected space of 15% by volume, 16% by volume or 17% 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 usually 11 vol.% Or 12 vol.% Oxygen concentration.
  • this two-stage inert gas process in which the basic inerting level is initially set to reduce the risk of fires and in which, if necessary, further nitrogen is introduced by further introduction of inert gas to extinguish a fire, until the full inerting level is reached, the number the container needed for the oxygen displacing in case of fire Inert gases can be kept as small as possible.
  • this inertization process known from the prior art, there is no need to provide a relatively large storage capacity for inert gas cylinders in order to be able to set a full inerting level in the protective space in the event of fire.
  • the present invention is based on the object, which from the DE 198 11 851 C2 To further develop known and above-described inerting methods for reducing the risk and extinguishing fires in shelters so as to ensure that the use of the method in the shelter does not require any specially provided pressure relief at all, and at the same time to achieve that a fire can follow the amount of inert gas additionally introduced and used for fire fighting, depending on the extent of the fire, so as to be able to save inert gas and make the implementation of the inertization process more cost-effective.
  • This object is achieved in the inerting method mentioned above in that in the shelter at least or a predetermined times or depending on certain predetermined events at least one fire parameter is measured to determine whether or not in the shelter a fire is present, and that in In the event of a fire in the shelter, the oxygen content is further lowered from the base inertization level to a first lowering level, the oxygen content is continuously maintained for a first predetermined time at this first lowering level, and in a case when the fire is after the first predetermined time has elapsed is not yet extinguished, the oxygen content is lowered from the first subsidence level further to the Vollinertmaschinesindi.
  • the advantages of the method according to the invention are, in particular, that - in addition to the already known from the prior art advantage of lower storage capacity for inert gas - initially a smaller volume of gas is introduced into the shelter in case of fire, so that provided no structural pressure relief more in the shelter have to be. Thus, can be completely dispensed with pressure relief openings in the shelter. In other words, this means that with the solution according to the invention, the inerting method can be used for firefighting almost every room, especially without that special pressure relief openings must be provided in these premises.
  • the first descent level is selected to be between the base inerting level at which, to minimize the risk of fire in the shelter, the oxygen content in the shelter is already reduced compared to the oxygen level of the normal atmosphere and the full inertization level at which the flammability the existing materials in the shelter is reduced so much that they can no longer ignite.
  • the Grundinert Deutschensset which is set in advance in the shelter, that is, before the detection of a fire, can correspond to any, compared to the oxygen concentration of the normal atmosphere reduced oxygen concentration at which a free accessibility of the shelter still exists .
  • This basic inerting level may of course also correspond to an oxygen concentration which is different from the 15% by volume described in the beginning. It would be conceivable, for example, to set an oxygen concentration in the protective space of 17% by volume as the basic inerting level, if this is necessary in individual cases.
  • the oxygen content is also kept continuously at this basic inerting level. This is done, for example, by regularly or continuously measuring the oxygen content in the shelter and by controlled introduction of inert gas into the shelter to maintain the oxygen content at the basic inertization level.
  • inert gas for maintaining the Grundinertleiterstells fresh air is introduced into the shelter in a controlled manner, for example, to prevent the oxygen content due to introduction of an excessive amount of inert gas below the Grundinertretesclude falls.
  • 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 dependent on the type of protective space (for example, depending on from an air exchange rate applicable to the shelter or depending on the materials stored in the shelter) and / or depending on the type of inerting plant used, with which the method according to the invention is carried out.
  • a control range is 0.1 to 0.4% by volume.
  • other control range sizes are also conceivable.
  • the oxygen content at the determined inertization level as a function of a previously performed calculation, in which calculation certain design parameters of the protective space are incorporated, such as, for example, the air exchange rate valid for the shelter , in particular the n50 value of the protection space, and / or the pressure difference between the protection space and the environment.
  • this full inertization level corresponds to an oxygen content at which fire in the shelter is effectively extinguished by oxygen displacement can be.
  • the Vollinertmaschinesmat is chosen in advance depending on the fire load of the shelter and corresponds, for example, an oxygen content of 11 or 12 vol .-% or below. In particular, for shelters in which highly flammable liquid materials are stored, it may be necessary to select an even lower oxygen concentration for the protection chamber-specific full inertization level.
  • the method according to the invention is characterized in that, in the event of a fire, the oxygen content in the protection space is lowered from the preset initial inerting level to the first lowering level.
  • the lowering to the first lowering level occurs, for example, as a function of a corresponding signal from a fire detection device for detecting a fire parameter in the room air of the protective room.
  • fire characteristic is understood to mean physical quantities which undergo measurable changes in the ambient air of an incipient fire, e.g. the ambient temperature, the solid or liquid or gas content in the ambient air (formation of smoke in the form of particles or aerosols or vapor) or the ambient radiation.
  • inerting process according to the invention in particular after the oxygen content has been reduced to the basic inertization level, constantly representative air samples can be taken from the room air in the protected area to be monitored and added to a detector for fire parameters which in case of fire sends a corresponding signal to the inertization process controlling controller for setting the first lowering level outputs.
  • This is a procedural implementation of the connection of a known aspirative fire detection device with the inert gas extinguishing technique, which is based on the inertization process according to the invention.
  • An aspirative fire detection device is to be understood as a fire detection device which sucks, for example via a pipeline or duct system at a plurality of locations within the shelter, a representative subset of the room air of the protected space to be monitored and this subset then a measuring chamber with the detector for detecting a fire characteristic feeds.
  • this detector for detecting a fire parameter is designed in such a way to output a signal which also makes possible a quantitative statement with regard to the fire parameters present in the sucked subset of the ambient air.
  • it would be possible to record the time course of the fire or the time course of the development of the fire so as to determine the effectiveness of setting and holding the different inerting in the shelter.
  • the oxygen content at this first subsidence level is maintained continuously for a first predetermined time.
  • This first predetermined time is advantageously chosen as a function of the shelter, depending on the fire load stored in the shelter and / or depending on other parameters, and is for example 10 minutes.
  • the first predetermined time should be a time interval which is long enough to be sufficient Accuracy to make a statement as to whether the lowering of the oxygen content of the Grundinertretesmits to the first subsidence level has led to complete fire extinction in the shelter.
  • the first predetermined time should be a time interval which is sufficiently short to prevent more damage being caused by the delayed setting of the full inertization level in the shelter due to the fire which has broken out there.
  • Whether or not the fire has extinguished after the expiration of the first predetermined time in the shelter can be determined, for example, by a preferably quantitative measurement of at least one fire parameter in an actively drawn-in representative subset of the room air.
  • a preferably quantitative measurement of at least one fire parameter in an actively drawn-in representative subset of the room air can be determined, for example, by a preferably quantitative measurement of at least one fire parameter in an actively drawn-in representative subset of the room air.
  • other methods are also conceivable with which it can be determined whether the fire has already extinguished after the first predetermined time in the shelter.
  • the oxygen content in the shelter is further lowered from the first subsidence level to a second subsidence level other than the full inertization level and maintained continuously at that second subsidence level for a second predetermined time when the second subsidence level Fire after the first predetermined time is not extinguished, and then, if the fire is still not extinguished after the second predetermined time, the oxygen content is lowered from the second lowering level further to the Vollinertreteslomi.
  • the second lowering level of this preferred further development of the inerting method according to the invention is advantageously between the first lowering level and the full inerting level and, like the first lowering level, is selected as a function of the shelter and depending on the fire load stored in the shelter.
  • the first and / or the second lowering level as a function of the technical realization of an inerting system provided for carrying out the inerting process according to the invention.
  • the oxygen content in the shelter is maintained at the second subsidence level for a second predetermined time, the amount of gas necessary to finally and effectively extinguish the fire can be more accurately adjusted.
  • the fire has not been completely extinguished after the first predetermined time has expired, since materials have caught fire in the protective space whose critical ignition limit is still below the oxygen content which corresponds to the first subsidence level.
  • the oxygen content corresponding to the second subsidence level is below the oxygen content of the first subsidence level
  • setting and maintaining the oxygen content at the second subsidence level for the second predetermined time may also extinguish a fire of materials whose critical ignition limit is below the first subsidence level Lowering levels but above the second lowering level is.
  • the inertisation process according to the invention can effectively extinguish a fire that has broken out in the protection space, even if the reduction of the oxygen content from the base inerting level to the full inertisation level takes place over a plurality of subsidence levels, it is provided in a preferred development that the protection space remains so long the full inertization level is maintained continuously until the fire is completely extinguished.
  • the event of complete extinguishment of the fire in the shelter is detected in a preferred manner again by means of a corresponding detector for detecting fire characteristics. Again, there is again an aspirative fire detection device, as already described above.
  • the oxygen content in the shelter may temporarily be well below the critical for Vollinertmaschinesmony oxygen concentration.
  • the lower limit of the control range within which the oxygen content is to be controlled while maintaining the full inertization level may be any value downwards.
  • another method such as an optical method, is applicable. It would also be conceivable that the Vollinertmaschinesmat is held in the shelter until a manual release, for example, from already arrived emergency services, takes place.
  • the oxygen content in the protective space is raised again to the basic inerting level if, after the first or the second predetermined time has elapsed, the fire in the protective space has gone out.
  • the raising of the oxygen content in the protective space to the basic inerting level occurs after the first or the second predetermined time has elapsed as a function of a further, preferably manual, release. Since this further release can be carried out, in particular, independently of the inerting system which carries out the inertization process according to the invention, in this preferred embodiment there is an increased safety with regard to system faults or errors. Of course, the further release can also be done automatically on the basis of an independent device for detecting a fire parameter in the shelter.
  • the first reduction level which corresponds to a further reduced oxygen content compared to the oxygen content of the base inertization level, is selected as a function of an oxygen content corresponding to the ignition limit value of the fire loads present in the protection space. It should be noted at this point that the ignition limit of a given material may be slightly higher than its extinction limit.
  • the inflammatory limit of a substance is preferably determined with a test method of VdS loss prevention as close to reality and reproducibly as possible in the experiment, if this value is unknown for materials or articles.
  • the solids to be tested are ignited at 20.9 vol .-% oxygen content with an ignition source. The time required for this is measured.
  • the oxygen content is then lowered in the course of several experiments at defined ambient conditions until the ignition source is allowed to act on the material for a doubled period of time without igniting it.
  • the following quantities are recorded or adjusted: oxygen content of the test atmosphere; Temperature during the test; Wind speed in the test room; Duration of inflammation; Flame temperature; and humidity in the test room.
  • the ignition limit is 15.9 vol.% Oxygen content
  • the extinguishing limit corresponds to an oxygen content of 15.5 vol.%.
  • the consideration of other parameters is also conceivable in determining the oxygen content corresponding to the first reduction level.
  • the second subsidence level which is further reduced in comparison to the oxygen content of the first subsidence level, provision is advantageously made for it to be selected as a function of an oxygen content corresponding to the extinguishment threshold of the fire loads present in the shelter. It is conceivable in this case in particular that the second lowering level below the oxygen content is equal to the extinguishing limit of existing in the shelter fire loads.
  • the second level of reduction can also be determined in advance, taking into account other aspects.
  • At least one fire parameter is measured in the shelter, preferably continuously, to determine whether there is a fire in the shelter or if the fire is already extinguished in the shelter .
  • the measurement of the fire parameter does not have to be continuous, but it is also conceivable that at predetermined times or depending on certain predetermined events, such a measurement takes place.
  • the measurement of the fire parameter is preferably carried out by means of a detector of the detection of fire parameters, which emits a corresponding signal for further inerting in case of fire.
  • representative air samples are taken from the room air in the protected space to be monitored and fed to the fire characteristic detector.
  • the first and / or the second lowering level be selected depending on the ignition and / or extinguishing limit value of the determined firing material. Accordingly, it is possible to adapt the used inert gas extinguishing technique in an optimal manner to the individual case and in particular to the burning material, which makes it possible that in case of fire, the amount of additional to be introduced into the shelter and used for firefighting inert gas very can be adapted exactly to the extent and type of fire.
  • the detector is preferably designed in such a way as to provide a quantitative statement with regard to the detected fire parameters, in order thus to monitor the time course of the fire in the protected space to be monitored and to initiate appropriate measures for setting the different oxygen levels. It would be conceivable that the entire inertization process together with the detector for determining the fire characteristic and including a controller for evaluating the output from the detector signals fully automatically or at least partially automatically, so as independent as possible and in some way intelligent inertization to reduce the risk and to clear fires in the shelter.
  • At least one fire parameter is measured in the protected room to determine whether there is a fire in the shelter
  • this determination as to whether there is a fire in the shelter is dependent on a plurality of measured values of the fire parameter and / or in dependence on a multiplicity of different threshold values of the fire parameters measured in the protected room.
  • This ensures the reliability of the system.
  • the system only notifies a fire when fire characteristics are detected with several different sensors.
  • the at least one fire parameter is quantitatively measured, whereby the lowering of the oxygen content to the first and / or the second reduction level is effected as a function of the quantitative measured value of the fire parameter.
  • the at least one fire parameter is measured quantitatively, and that the duration of holding the oxygen content at the first and / or second lowering level in dependence on the measured value or the measured values of the fire characteristic (s).
  • the used inert gas extinguishing technology can be adapted very precisely to the individual case.
  • the amount of inert gas additionally to be introduced into the shelter and to be used for firefighting can be adapted very precisely to the extent and type of fire.
  • the first reduction level, the second reduction level and / or the full inertization level in the inertization method according to the invention is preferably provided that in the shelter, preferably continuously, the oxygen content is measured, being introduced controlled depending on the measured oxygen content inert gas in the shelter.
  • oxygen for example in the form of fresh air, to be introduced depending on the measured oxygen content, in order to maintain the inerting level.
  • the oxygen content is not measured in the protective space in order to make it possible to maintain the set inerting level, but that the concentration of the inert gas contained therein, such as, for example, nitrogen or carbon dioxide, is detected in the protective space with a corresponding detector.
  • concentration of the inert gas contained therein such as, for example, nitrogen or carbon dioxide
  • the required amount of inert gas is determined in addition to the measurement of the oxygen value or the inert gas value, by means of an arithmetic calculation. Such a calculation should preferably take place in consideration of protection space-specific parameters, such as the air exchange rate, etc.
  • Fig. 1A and Fig. 1B show in each case the oxygen concentration and the quantitative measured value of the fire parameter or the smoke level in a protective space to which a preferred embodiment of the inerting method according to the invention is applied. It is shown that the oxygen concentration is lowered to a Grundinertmaschinesclude and kept continuously until the time t0 in the shelter.
  • the Grundinertmaschinesclude corresponds in this preferred example, a concentration of 17.0 vol .-% oxygen in the indoor air of the monitored shelter.
  • the continuous maintenance of the oxygen content in the shelter at the basic inertization level up to the time t0 is preferably carried out by continuously measuring the oxygen concentration in the shelter and by a controlled introduction of inert gas or fresh air into the shelter.
  • the term "maintaining the oxygen concentration at a certain inertization level” herein means maintaining the oxygen concentration within a certain control range, that is, within a range defined by upper and lower thresholds.
  • the maximum amplitude of the oxygen concentration in this control range is adjustable in advance and is for example 0.1 to 0.4 vol .-%.
  • the corresponding inertization level always represents the lower threshold value of the control range.
  • this does not necessarily have to be the case in principle.
  • a fire alarm is emitted by a fire characteristic detector (not shown) to a controller at time t0, which controls the performance of the inertization process according to the invention on an inert gas system.
  • a first threshold value (alarm threshold 1)
  • the oxygen content in the shelter is further lowered from the baseline inert level to the first descent level.
  • the first lowering level (lowering level 1) in the illustrated curve corresponds to an oxygen concentration of 15.9% by volume.
  • the lowering of the oxygen content to the first lowering level takes place within a shortest possible time. This is made possible by a rapid introduction of a predetermined amount of inert gas. Thus, shortly after alarming the fire alarm, the oxygen concentration in the shelter is lowered to the lowering level 1.
  • the oxygen concentration is maintained at this first lowering level for a first predetermined time ⁇ T1.
  • the quantitative limit value of the at least one fire parameter in the room air of the protective room is determined continuously with the fire characteristic quantity detector.
  • the quantitative value of the fire parameter increases steadily in the room air of the shelter, despite the reduction of the oxygen content to the first subsidence level. This is an indication that despite the further reduced oxygen content of the fire in the shelter is not extinguished.
  • the oxygen content in the shelter is maintained for a second predetermined time ⁇ T2. This is again done by controlled tracking of inert gas or by controlled introduction of fresh air.
  • the reaffirmation of the fire alarm at time t2 causes the oxygen content in the shelter to be further lowered from the second descent level to the full inertization level, again by rapidly introducing a corresponding amount of inert gas.
  • This corresponding amount of inert gas can be determined in advance depending on the room parameters of the shelter, such as the fire load and the size of the room and the tightness and the air exchange rate of the room.
  • the curve of the Fig. 1A it can be seen that immediately after the time t2, that is immediately after the re-confirmation of the fire alarm, the oxygen concentration has reached the predetermined Vollinertmaschinesindi.
  • the Vollinertmaschineshou is designed so that it corresponds to an oxygen concentration that is below the ignition limit of existing materials in the shelter (fire load). By setting the Vollinertmaschineshous in the shelter so the fire is completely extinguished by deoxygenation, while effectively preventing reignition of the materials in the shelter.
  • the Vollinertmaschinesmat is thus set via two intermediate stages, namely the first and the second lowering level.
  • FIGS. 2A and 2B shows another scenario in which after the first predetermined time .DELTA.T1 the fire in the shelter has already extinguished.
  • the curve of the Fig. 2B In particular, it can be seen that after triggering the fire alarm at the time t0, the quantitative measured value of the fire parameter first stagnates and then continuously decreases, which is an indication that the fire in the shelter has gone out.
  • the quantitative measured value of the fire parameter (cf. Fig. 2B ) below the first alarm threshold, so that at time t1 the fire alarm is not confirmed.
  • the oxygen concentration in the shelter can be raised again to the basic inertization level the fire in the shelter is extinguished. This can be done for example by controlled introduction of fresh air.
  • the increase in the oxygen concentration in the shelter to the basic inertization level upon unconfirmed fire alarm is either initiated automatically, for example by the inerting plant, with which the inertization process according to the invention is carried out.
  • the increase in the oxygen concentration to the basic inerting level, even with an unconfirmed fire alarm may only take place with an additional (independent) release. This independent additional release may be, for example, a manual release of emergency services.
  • FIGS. 3A and 3B Another scenario is shown in which, after lowering the oxygen concentration in the shelter to the first descent level at time t0 and after maintaining the oxygen concentration at the first descent level for the first predetermined time ⁇ T1, the fire that has broken out in the shelter is not completely extinguished, which This is noticeable by the fact that the quantitative measured value of the fire parameter in the time window ⁇ T1 does not decrease continuously, but stagnates or even increases slightly in part. In contrast to the scenarios described above, however, this is a fire that has only been partially extinguished or passed into a swell fire. However, the fire is not large enough that at time t1, ie after the first predetermined time ⁇ T1, the quantitative measured value of the fire parameter exceeds the second alarm threshold which serves to confirm the fire alarm.
  • the first lowering level is held again for a first predetermined time .DELTA.T1, in order subsequently to be able to make a statement about the fire condition of the protective space, that is to say at time t2. If, at the time t2, that is, after the second expiry of the first predetermined time, the quantitative measured value of the fire parameter is still above the first alarm threshold, it is provided in this illustrated embodiment that the oxygen concentration is further lowered from the first subsidence level to the second subsidence level as the Fig. 3A can be seen.
  • the first lowering level is again held for a further first predetermined time ⁇ T1, and that subsequently a decision is made with regard to the further course of action.
  • the first and the second predetermined time ⁇ T1 and ⁇ T2 are selected application-specific. Furthermore, it should be noted that the oxygen concentrations, which correspond to the respective inerting levels in the illustrated embodiments, are of course only exemplary. It should also be noted that the decision criteria and scenarios described above with regard to the first subsidence level are, of course, also applicable analogously with regard to the second subsidence level.
  • the inventive method requires the regular or continuous monitoring of the oxygen content and the fire characteristics content in the target area.
  • the oxygen concentration or the inert gas concentration and the quantitative value of the fire parameter or the concentration of the smoke level in the target area is regularly and permanently determined by appropriate sensors and fed to a controller of an inert gas fire extinguishing system, in response to the extinguishing agent supply or the fresh air supply to the target area controls.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Fire-Extinguishing Compositions (AREA)
  • Fire Alarms (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Auxiliary Methods And Devices For Loading And Unloading (AREA)
EP06122142A 2006-10-11 2006-10-11 Mehrstufiges Inertisierungsverfahren zur Brandverhütung und Brandlöschung in geschlossenen Räumen Active EP1911498B1 (de)

Priority Applications (20)

Application Number Priority Date Filing Date Title
AT06122142T ATE421361T1 (de) 2006-10-11 2006-10-11 Mehrstufiges inertisierungsverfahren zur brandverhütung und brandlöschung in geschlossenen räumen
EP06122142A EP1911498B1 (de) 2006-10-11 2006-10-11 Mehrstufiges Inertisierungsverfahren zur Brandverhütung und Brandlöschung in geschlossenen Räumen
SI200630181T SI1911498T1 (sl) 2006-10-11 2006-10-11 Večstopenjski inertizacijski postopek za preprečevanje in gašenje požarov v zaprtih prostorih
PL06122142T PL1911498T3 (pl) 2006-10-11 2006-10-11 Wielostopniowy sposób inertyzacji do zapobiegania pożarom i gaszenia pożarów w zamkniętych pomieszczeniach
DE502006002728T DE502006002728D1 (de) 2006-10-11 2006-10-11 Mehrstufiges Inertisierungsverfahren zur Brandverhütung und Brandlöschung in geschlossenen Räumen
DK06122142T DK1911498T3 (da) 2006-10-11 2006-10-11 Flertrinsinertiseringsfremgangsmåde til forhindring og slukning af brand i lukkede rum
ES06122142T ES2318686T3 (es) 2006-10-11 2006-10-11 Procedimiento de inertizacion gradual para la prevencion y extincion de incendios en espacios cerrados.
PT06122142T PT1911498E (pt) 2006-10-11 2006-10-11 Processo de inertização de vários passos para a prevenção e extinção de incêndios em abrigos
CN2007800040365A CN101378811B (zh) 2006-10-11 2007-08-02 封闭空间内用于防火和灭火的多阶段惰性化过程
KR1020087019772A KR101359885B1 (ko) 2006-10-11 2007-08-02 폐쇄 공간 내에서의 화재 예방 및 진화를 위한 멀티 스테이지 불활성화 방법
JP2009524999A JP5322233B2 (ja) 2006-10-11 2007-08-02 閉鎖された空間内において火災を防止し、消火するための多段階不活性化方法
BRPI0707053A BRPI0707053B1 (pt) 2006-10-11 2007-08-02 processo de inertização para diminuir o risco e extinguir incêndios em uma àrea protegida
UAA200808906A UA92053C2 (uk) 2006-10-11 2007-08-02 Багатоетапний процес інертизації для профілактики та гасіння пожеж у замкнутих просторах
CA2637601A CA2637601C (en) 2006-10-11 2007-08-02 Multi-stage inertization process for preventing and extinguishing fires within enclosed spaces
AU2007306567A AU2007306567B2 (en) 2006-10-11 2007-08-02 Multistage inerting method for preventing and extinguishing fires in enclosed spaces
RU2008130935/12A RU2405605C2 (ru) 2006-10-11 2007-08-02 Многостадийный способ инертизации c целью предотвращения и тушения пожаров в закрытых помещениях
PCT/EP2007/058027 WO2008043586A1 (de) 2006-10-11 2007-08-02 Mehrstufiges inertisierungsverfahren zur brandverhütung und brandlöschung in geschlossenen räumen
US11/870,871 US7726410B2 (en) 2006-10-11 2007-10-11 Multi-stage inertization process for preventing and extinguishing fires within enclosed spaces
HK08105680A HK1116119A1 (en) 2006-10-11 2008-05-22 Multi-stage inerting method for preventing and extinguishing fires is enclosed spaces
NO20084169A NO339386B1 (no) 2006-10-11 2008-10-03 Flertrinns-inertieringsfremgangsmåte til forebygging og slukking av branner i lukkede rom

Applications Claiming Priority (1)

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EP06122142A EP1911498B1 (de) 2006-10-11 2006-10-11 Mehrstufiges Inertisierungsverfahren zur Brandverhütung und Brandlöschung in geschlossenen Räumen

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EP1911498A1 EP1911498A1 (de) 2008-04-16
EP1911498B1 true EP1911498B1 (de) 2009-01-21

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EP (1) EP1911498B1 (uk)
JP (1) JP5322233B2 (uk)
KR (1) KR101359885B1 (uk)
CN (1) CN101378811B (uk)
AT (1) ATE421361T1 (uk)
AU (1) AU2007306567B2 (uk)
BR (1) BRPI0707053B1 (uk)
CA (1) CA2637601C (uk)
DE (1) DE502006002728D1 (uk)
DK (1) DK1911498T3 (uk)
ES (1) ES2318686T3 (uk)
HK (1) HK1116119A1 (uk)
NO (1) NO339386B1 (uk)
PL (1) PL1911498T3 (uk)
PT (1) PT1911498E (uk)
RU (1) RU2405605C2 (uk)
SI (1) SI1911498T1 (uk)
UA (1) UA92053C2 (uk)
WO (1) WO2008043586A1 (uk)

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CA2700407A1 (en) * 2007-09-24 2009-04-02 Utc Fire & Security Corporation Inert gas flooding fire suppression with water augmentation
ES2350567T3 (es) * 2008-06-18 2011-01-25 Amrona Ag Dispositivo y procedimiento para el ajuste de la tasa de fuego de una inestanqueidad en una abertura a modo de hendidura de un intercambiador de calor rotativo.
PL2186546T3 (pl) * 2008-10-07 2011-02-28 Amrona Ag Instalacja do gaszenia pożaru gazem obojętnym do zmniejszania ryzyka i do gaszenia pożarów w pomieszczeniu chronionym
DE102009004509A1 (de) * 2009-01-09 2010-07-15 Dorma Gmbh + Co. Kg Türbetätiger
JP5443112B2 (ja) * 2009-10-01 2014-03-19 ホーチキ株式会社 気液混合設備及び気液混合設備の消火制御方法
KR101184550B1 (ko) 2010-11-17 2012-09-19 중앙대학교 산학협력단 제연 설비 구축을 위한 누설 면적 측정 방법 및 시스템
DK2462994T3 (da) * 2010-12-10 2013-12-09 Amrona Ag Inertiseringsfremgangsmåde til at forebygge og/eller slukke brande og inertiseringssystem til implementering af fremgangsmåden.
US9010449B2 (en) * 2011-07-26 2015-04-21 Firetrace Usa, Llc Methods and apparatus for hot aisle/cold aisle data center fire suppression
PT2602006T (pt) 2011-12-05 2017-03-08 Amrona Ag Método para extinção de incêndio num compartimento fechado assim como sistema de extinção de incêndio
US9043832B2 (en) * 2012-03-16 2015-05-26 Zhongshan Innocloud Intellectual Property Services Co., Ltd. Early warning system, server and method
CN104069604A (zh) * 2014-07-02 2014-10-01 珠海格力电器股份有限公司 可燃制冷剂空调器运输车的防火系统及其控制方法
CN110420415A (zh) * 2019-08-27 2019-11-08 应急管理部天津消防研究所 一种两次喷放灭火剂抑制三元锂离子电池火灾的方法

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Also Published As

Publication number Publication date
KR101359885B1 (ko) 2014-02-06
PT1911498E (pt) 2009-04-29
ATE421361T1 (de) 2009-02-15
ES2318686T3 (es) 2009-05-01
BRPI0707053B1 (pt) 2018-11-06
US20080087445A1 (en) 2008-04-17
JP2010501222A (ja) 2010-01-21
HK1116119A1 (en) 2008-12-19
UA92053C2 (uk) 2010-09-27
CA2637601C (en) 2011-05-24
PL1911498T3 (pl) 2009-07-31
SI1911498T1 (sl) 2009-04-30
NO20084169L (no) 2008-10-03
AU2007306567A1 (en) 2008-04-17
RU2405605C2 (ru) 2010-12-10
US7726410B2 (en) 2010-06-01
BRPI0707053A2 (pt) 2011-04-19
JP5322233B2 (ja) 2013-10-23
CA2637601A1 (en) 2008-04-17
AU2007306567B2 (en) 2012-03-29
CN101378811A (zh) 2009-03-04
RU2008130935A (ru) 2010-02-10
WO2008043586A1 (de) 2008-04-17
NO339386B1 (no) 2016-12-05
DE502006002728D1 (de) 2009-03-12
DK1911498T3 (da) 2009-05-25
KR20090092691A (ko) 2009-09-01
EP1911498A1 (de) 2008-04-16
CN101378811B (zh) 2012-12-05

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