EP1838396A1 - Inerting method for preventing fires - Google Patents
Inerting method for preventing firesInfo
- Publication number
- EP1838396A1 EP1838396A1 EP06700499A EP06700499A EP1838396A1 EP 1838396 A1 EP1838396 A1 EP 1838396A1 EP 06700499 A EP06700499 A EP 06700499A EP 06700499 A EP06700499 A EP 06700499A EP 1838396 A1 EP1838396 A1 EP 1838396A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- concentration
- oxygen
- inflammation
- shelter
- gases
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000001301 oxygen Substances 0.000 claims abstract description 39
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 39
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000007789 gas Substances 0.000 claims abstract description 34
- 238000004880 explosion Methods 0.000 claims abstract description 10
- 206010061218 Inflammation Diseases 0.000 claims description 19
- 239000012080 ambient air Substances 0.000 claims description 5
- 239000003570 air Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 abstract description 7
- 229930195733 hydrocarbon Natural products 0.000 abstract description 5
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 3
- 239000011261 inert gas Substances 0.000 description 21
- 230000001681 protective effect Effects 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000010943 off-gassing Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
Classifications
-
- 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
- A62C2/00—Fire prevention or containment
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
- A62C99/0018—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using gases or vapours that do not support combustion, e.g. steam, carbon dioxide
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- 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
- 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
- A62C99/0063—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames with simultaneous removal of inflammable materials
Definitions
- the present invention relates to a. Inerting process to avoid fire or explosion in an enclosed protection area, in which the oxygen content in the protection area is reduced compared to the ambient air in the protection area.
- Inerting methods for fire prevention and extinguishing in closed rooms are known from fire extinguishing technology.
- the extinguishing effect resulting from these processes is based on the principle of oxygen displacement.
- the normal ambient air consists of 21% by volume of oxygen, 78% by volume of nitrogen and 1% by volume of other gases.
- initiate e.g. pure or 90% nitrogen as inert gas further increases the nitrogen concentration in the room in question and thus reduces the oxygen content.
- an extinguishing effect sets in when the oxygen content drops below about 15% by volume.
- a further decrease in the oxygen content to, for example, 12% by volume may be necessary. At this oxygen concentration, most flammable materials can no longer burn.
- the oxygen-displacing gases used in this “inert gas extinguishing technology” are generally stored compressed in steel tanks in special adjoining rooms, or a device is used to generate an oxygen-displacing gas Inert gas-air mixtures with a proportion of, for example, 90%, 95% or 99% nitrogen (or another inert gas) can also be used.
- the steel bottles or this device for generating the oxygen-displacing gas constitute the so-called primary source of the inert gas extinguishing system. If necessary, the gas is then fed from this source via piping systems and corresponding outlet nozzles into the room in question. In order to keep the fire risk as low as possible even if the source fails, secondary inert gas sources are sometimes used.
- Patent specification DE 102 35 718 B3 describes a method for inerting one or more closed rooms to reduce the risk of fire and explosion, in which the oxygen content in the closed room is reduced to an oxygen setpoint relative to the ambient air. A temperature value for a gas temperature in the closed space is also recorded and the oxygen setpoint for the oxygen content is determined as a function of the temperature values, the oxygen setpoint being increased as the temperature value falls.
- this method has the disadvantage that the nominal values can fluctuate greatly with the physical characteristics, the geometry, the special composition or coverage by other surface materials of the materials stored in the shelter. One would have to determine a separate parameter for each physical form and arrangement of the stored goods in the shelter, which is impossible in practice.
- the present invention is based on the object of further developing the inerting method known from the prior art and explained above that it is independent of the The type of substances or goods stored in the protected area works reliably.
- This object is achieved according to the invention in an inerting method of the type mentioned at the outset by regulating the setpoint value for the oxygen concentration as a function of the concentration of inflammation-promoting gases in the shelter.
- the advantages of the invention are, in particular, that an easy to implement and at the same time very effective inerting method for reducing the risk of fire or explosion can be achieved in an enclosed protective area, even if increased concentrations of inflammation-promoting substances are present in the protected area due to outgassing.
- concentration of the inflammation-promoting gases is regularly determined by measurements.
- the disadvantages of the inert gas concentration or oxygen concentration in the shelter controlled by parameters are avoided and scatter of characteristic values of stored materials are compensated for by a timely measurement and reaction to increased concentrations of inflammation-promoting gases due to outgassing.
- the above-mentioned object is further achieved in that the concentration of inflammation-promoting gases in the protective space or protective area is measured at least at one point, each with one or more sensors. Measurements at several points are necessary, for example, if the objects or packaging stored in the enclosed shelter are arranged unevenly.
- the outgassing of inflammation-promoting gases can vary widely in this case or even if the geometry of the goods stored in the shelter is unfavorable.
- the oxygen concentration in the shelter can also be measured at several points and with one or more sensors.
- the measurement at several points offers an additional safety aspect with regard to uneven gas distributions in the enclosed shelter.
- the measurement of the oxygen concentration can be carried out with one or more sensors in each case. Failure safety can be increased by measuring with at least two sensors.
- the above-mentioned measured values of the concentration of inflammation-promoting gases in the shelter as well as the concentration of oxygen in the shelter are fed to at least one control unit.
- the multiple measured values supplied to the control unit can be evaluated within the control unit based on a selectable algorithm.
- One or more control units can be provided.
- the advantage of a multiple design of the control unit lies in the increased security of the overall system. In this way it can be ensured that the entire system remains functional even if one control unit fails. If an increasing concentration of inflammation-promoting gases is detected in the control unit via the sensors for inflammation-promoting gases, the setpoint value of the oxygen concentration is further reduced in order to ensure that fires and explosions are reliably prevented even in the presence of inflammation-promoting gases (e.g. hydrocarbons) .
- inflammation-promoting gases e.g. hydrocarbons
- the target value of the oxygen concentration is increased as the concentration of inflammation-promoting gases decreases.
- a lowering of the concentration of inflammation-promoting gases, which arise due to outgassing of the goods stored in the storage room, can be reduced by providing a gas exchange or a fresh air supply in the protective room. In this way, it can be reliably prevented that the concentration of inflammation-promoting gases does not increase continuously due to outgassing, thus increasing the risk of fire or explosion.
- the signals from the sensors in the shelter can be transmitted wirelessly if necessary. In this way, changing storage material and / or goods geometries in the shelter can be taken into account.
- Fig. 1 A schematic arrangement of the shelter with the associated inert gas sources and the valve, measuring and control devices.
- Fig. 2 An exemplary change in the oxygen concentration is influenced by the concentration of fire-promoting substances in the shelter.
- the basic function of the method is described by way of example in FIG. 1.
- the inert gas can be let into the protective space 1 from the inert gas source 2 via a valve 3 and one or more outlet nozzles 7.
- the concentration of the inert gas in the barrage 1 is regulated by the control unit 4, which in turn influences the valve 3.
- the control unit 4 is set in such a way that a basic level of inertization in the shelter 1 is reached. This basic level of inertization reliably prevents fires in shelter 1 under normal conditions. Under normal conditions it is understood that there are no increased concentrations of fire-promoting substances Kx in the shelter 1.
- control unit 4 measures the oxygen concentration in the protective space 1 via an oxygen sensor 5 and controls the inflow of inert gas accordingly.
- the presence and concentration of gases resulting from material outgassing are determined by means of at least one further sensor 6. If the concentration of fire or explosion-promoting gases in the ambient air of the shelter 1 now increases (for example due to an increased concentration of hydrocarbons), this is measured via the sensor 6. This measured value is fed to the control unit 4.
- the inert gas concentration in the protective space 1 is then increased via a corresponding map function in the control unit 4 and the valve 3. The inflow of inert gas continues until the desired lower oxygen concentration in the protective space, measured via the oxygen sensor 5, has been reached and reliable fire protection is provided even under these difficult conditions.
- Kx concentration of oxidizing gases.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL06700499T PL1838396T3 (en) | 2005-01-17 | 2006-01-13 | Inerting method for preventing fires |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005002172A DE102005002172A1 (en) | 2005-01-17 | 2005-01-17 | Inertization process for fire prevention |
PCT/EP2006/000267 WO2006074942A1 (en) | 2005-01-17 | 2006-01-13 | Inerting method for preventing fires |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1838396A1 true EP1838396A1 (en) | 2007-10-03 |
EP1838396B1 EP1838396B1 (en) | 2009-09-23 |
Family
ID=36072234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06700499A Active EP1838396B1 (en) | 2005-01-17 | 2006-01-13 | Inerting method for preventing fires |
Country Status (21)
Country | Link |
---|---|
US (1) | US20100012334A1 (en) |
EP (1) | EP1838396B1 (en) |
JP (1) | JP4654249B2 (en) |
KR (1) | KR101255387B1 (en) |
CN (1) | CN101119772B (en) |
AT (1) | ATE443543T1 (en) |
AU (1) | AU2006205895B2 (en) |
BR (1) | BRPI0606315A2 (en) |
CA (1) | CA2594796C (en) |
DE (2) | DE102005002172A1 (en) |
DK (1) | DK1838396T3 (en) |
ES (1) | ES2333813T3 (en) |
HK (1) | HK1108399A1 (en) |
MX (1) | MX2007008408A (en) |
NO (1) | NO339355B1 (en) |
PL (1) | PL1838396T3 (en) |
PT (1) | PT1838396E (en) |
RU (1) | RU2362600C2 (en) |
TW (1) | TW200702015A (en) |
UA (1) | UA90126C2 (en) |
WO (1) | WO2006074942A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2465512C1 (en) * | 2011-04-19 | 2012-10-27 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" | Device for maintaining air medium composition in sealed container |
DE102011112741B4 (en) * | 2011-09-07 | 2015-09-03 | Werner Hofmann | Inert gas covered closed grinding and screening plant |
KR101244426B1 (en) * | 2012-12-03 | 2013-03-18 | (유)성문 | Apparatus for protecting and repressing fire |
EP2881149B1 (en) * | 2013-12-04 | 2018-02-28 | Amrona AG | Oxygen reduction system and method for operating an oxygen reduction system |
EP3558472B1 (en) | 2016-12-20 | 2024-01-24 | Carrier Corporation | Fire protection system for an enclosure and method of fire protection for an enclosure |
RU2748912C1 (en) * | 2020-07-14 | 2021-06-01 | Александр Вениаминович Куликов | Method for safe handling of energy materials |
KR102239961B1 (en) | 2020-08-19 | 2021-04-14 | 포이스주식회사 | Apparatus for fire suppresion for pyrophoric chemical and method thereof |
RU2766144C1 (en) * | 2021-05-27 | 2022-02-08 | Александр Вениаминович Куликов | Container for safe handling of energy materials |
CN114306977B (en) * | 2021-12-24 | 2022-08-09 | 南京昭凌精密机械有限公司 | Explosion-proof system |
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US3709302A (en) * | 1971-07-08 | 1973-01-09 | H Stults | Self-contained foam fire extinguishing system |
US4081039A (en) * | 1976-10-28 | 1978-03-28 | Brown Oil Tools, Inc. | Connecting assembly and method |
DE2737228A1 (en) * | 1977-08-18 | 1979-03-01 | Lga Gas & Marine Consult Gmbh | DEVICE FOR UNDERWATER CONNECTION OF A FIXED LIQUID CONVEYOR LINE TO A MOVING CONNECTING LINE TO A BUOY |
FR2544688B1 (en) * | 1983-04-21 | 1986-01-17 | Arles Const Metalliques | MODULAR OFF-SIDE HYDROCARBON PRODUCTION, STORAGE AND LOADING SYSTEM |
US4763731A (en) * | 1983-09-28 | 1988-08-16 | The Boeing Company | Fire suppression system for aircraft |
US4846410A (en) * | 1986-04-26 | 1989-07-11 | The Babcock & Wilcox Company | Apparatus for monitoring low-level combustibles |
US4899827A (en) * | 1988-08-01 | 1990-02-13 | Douglas Poole | Oil well fire control system |
US5437332A (en) * | 1991-04-10 | 1995-08-01 | Pfeffer; John L. | Control system for wild oil and gas wells and other uncontrolled dangerous discharges |
US5425886A (en) * | 1993-06-23 | 1995-06-20 | The United States Of America As Represented By The Secretary Of The Navy | On demand, non-halon, fire extinguishing systems |
DE4432346C1 (en) * | 1994-09-12 | 1995-11-16 | Messer Griesheim Gmbh | Rendering stored matter inert in a silo |
US5718293A (en) * | 1995-01-20 | 1998-02-17 | Minnesota Mining And Manufacturing Company | Fire extinguishing process and composition |
JPH09276428A (en) * | 1996-04-08 | 1997-10-28 | Sekiko Ryo | Method and system for preventing and distinguishing fire |
US5904190A (en) * | 1997-06-17 | 1999-05-18 | The Regents Of The University Of California | Method to prevent explosions in fuel tanks |
US20020040940A1 (en) * | 1998-03-18 | 2002-04-11 | Wagner Ernst Werner | Inerting method and apparatus for preventing and extinguishing fires in enclosed spaces |
WO2000052293A2 (en) * | 1999-03-03 | 2000-09-08 | Fmc Corporation | Explosion prevention system for internal turret mooring system |
DE10051662B4 (en) * | 2000-10-18 | 2004-04-01 | Airbus Deutschland Gmbh | Procedure for extinguishing a fire that has broken out inside a closed room |
JP2003102858A (en) * | 2001-09-28 | 2003-04-08 | Nohmi Bosai Ltd | Fire prevention system for closed space |
DE10152964C1 (en) * | 2001-10-26 | 2003-08-21 | Airbus Gmbh | Extinguishing system for extinguishing a fire that has broken out inside the cabin or cargo hold of a passenger aircraft |
DE10164293A1 (en) * | 2001-12-28 | 2003-07-10 | Wagner Alarm Sicherung | Method and device for measuring the oxygen content |
DE10235718B3 (en) | 2002-07-31 | 2004-04-08 | Htk Hamburg Gmbh | Inertizing method for reducing fire and explosion risk in closed room, e.g. cold store, switching or control centre, submarine, bank vault, diving bell or aircraft |
DE10310439B3 (en) * | 2003-03-11 | 2004-12-09 | Basf Coatings Ag | Process for fire and explosion protection in a high-bay warehouse for chemical hazardous substances and fire and explosion-protected high-bay warehouse |
CN1533814A (en) * | 2003-03-27 | 2004-10-06 | 廖赤虹 | Fire disaster prevention of sealed space and fire extinguishing equipmet |
CN100509088C (en) * | 2003-05-26 | 2009-07-08 | 萧志福 | Fireproof nitrogen supplying system for supporting human breath |
ES2398958T3 (en) * | 2005-01-21 | 2013-03-22 | Amrona Ag | Inerting procedure for fire prevention |
DK1911498T3 (en) * | 2006-10-11 | 2009-05-25 | Amrona Ag | Multistage incineration method for fire prevention and extinguishing in confined spaces |
DE502007003086D1 (en) * | 2007-07-13 | 2010-04-22 | Amrona Ag | Method and device for fire prevention and / or fire extinguishing indoors |
KR101407873B1 (en) * | 2007-08-01 | 2014-06-20 | 암로나 아게 | Inertization method for reducing the risk of fire in an enclosed area and device for carrying out said method |
-
2005
- 2005-01-17 DE DE102005002172A patent/DE102005002172A1/en not_active Ceased
-
2006
- 2006-01-13 UA UAA200709384A patent/UA90126C2/en unknown
- 2006-01-13 US US11/795,385 patent/US20100012334A1/en not_active Abandoned
- 2006-01-13 EP EP06700499A patent/EP1838396B1/en active Active
- 2006-01-13 CN CN2006800021139A patent/CN101119772B/en not_active Expired - Fee Related
- 2006-01-13 JP JP2007550761A patent/JP4654249B2/en not_active Expired - Fee Related
- 2006-01-13 AU AU2006205895A patent/AU2006205895B2/en not_active Ceased
- 2006-01-13 RU RU2007131271/12A patent/RU2362600C2/en not_active IP Right Cessation
- 2006-01-13 AT AT06700499T patent/ATE443543T1/en active
- 2006-01-13 MX MX2007008408A patent/MX2007008408A/en active IP Right Grant
- 2006-01-13 CA CA2594796A patent/CA2594796C/en not_active Expired - Fee Related
- 2006-01-13 PT PT06700499T patent/PT1838396E/en unknown
- 2006-01-13 WO PCT/EP2006/000267 patent/WO2006074942A1/en active Application Filing
- 2006-01-13 DK DK06700499.4T patent/DK1838396T3/en active
- 2006-01-13 ES ES06700499T patent/ES2333813T3/en active Active
- 2006-01-13 KR KR1020077015898A patent/KR101255387B1/en active IP Right Grant
- 2006-01-13 BR BRPI0606315-2A patent/BRPI0606315A2/en active Search and Examination
- 2006-01-13 PL PL06700499T patent/PL1838396T3/en unknown
- 2006-01-13 DE DE502006004914T patent/DE502006004914D1/en active Active
- 2006-01-16 TW TW095101547A patent/TW200702015A/en unknown
-
2007
- 2007-08-16 NO NO20074209A patent/NO339355B1/en not_active IP Right Cessation
- 2007-12-18 HK HK07113746.3A patent/HK1108399A1/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2006074942A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2008526409A (en) | 2008-07-24 |
BRPI0606315A2 (en) | 2009-06-16 |
CN101119772A (en) | 2008-02-06 |
MX2007008408A (en) | 2007-11-21 |
DK1838396T3 (en) | 2010-02-01 |
NO20074209L (en) | 2007-10-09 |
PL1838396T3 (en) | 2010-02-26 |
UA90126C2 (en) | 2010-04-12 |
PT1838396E (en) | 2009-11-30 |
HK1108399A1 (en) | 2008-05-09 |
NO339355B1 (en) | 2016-12-05 |
EP1838396B1 (en) | 2009-09-23 |
DE102005002172A1 (en) | 2006-07-27 |
CA2594796A1 (en) | 2006-07-20 |
ATE443543T1 (en) | 2009-10-15 |
AU2006205895B2 (en) | 2011-03-31 |
TW200702015A (en) | 2007-01-16 |
DE502006004914D1 (en) | 2009-11-05 |
KR20070102512A (en) | 2007-10-18 |
JP4654249B2 (en) | 2011-03-16 |
RU2007131271A (en) | 2009-02-27 |
CA2594796C (en) | 2013-07-16 |
AU2006205895A1 (en) | 2006-07-20 |
KR101255387B1 (en) | 2013-04-17 |
RU2362600C2 (en) | 2009-07-27 |
US20100012334A1 (en) | 2010-01-21 |
ES2333813T3 (en) | 2010-03-01 |
CN101119772B (en) | 2011-11-30 |
WO2006074942A1 (en) | 2006-07-20 |
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