EP1838396A1 - Procede d'inertisation pour prevenir un incendie - Google Patents

Procede d'inertisation pour prevenir un incendie

Info

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
Application number
EP06700499A
Other languages
German (de)
English (en)
Other versions
EP1838396B1 (fr
Inventor
Ernst-Werner Wagner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amrona AG
Original Assignee
Amrona AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Amrona AG filed Critical Amrona AG
Priority to PL06700499T priority Critical patent/PL1838396T3/pl
Publication of EP1838396A1 publication Critical patent/EP1838396A1/fr
Application granted granted Critical
Publication of EP1838396B1 publication Critical patent/EP1838396B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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.

Landscapes

  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Fire-Extinguishing Compositions (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Ceramic Products (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Valve Device For Special Equipments (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Glass Compositions (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • Fire Alarms (AREA)
  • Processing Of Solid Wastes (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Inorganic Insulating Materials (AREA)

Abstract

L'invention concerne un procédé d'inertisation pour prévenir un incendie ou une explosion dans un périmètre de protection fermé, la teneur en oxygène de ce périmètre de protection étant réduite par rapport à celle de l'air ambiant. L'objectif de l'invention est de permettre de prévenir un incendie de manière efficace y compris en cas de dégagements de gaz de matières solides ou de liquides dans la zone de protection fermée. A cet effet, le procédé selon l'invention consiste à réguler la teneur en oxygène dans la zone de protection fermée en fonction de la concentration en gaz favorisant une inflammation en cas de formation de substances et/ou de gaz favorisant une inflammation dans la zone de protection fermée (par exemple des hydrocarbures).
EP06700499A 2005-01-17 2006-01-13 Procede d'inertisation pour prevenir un incendie Active EP1838396B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06700499T PL1838396T3 (pl) 2005-01-17 2006-01-13 Sposób inertyzacji w celu unikania pożaru

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005002172A DE102005002172A1 (de) 2005-01-17 2005-01-17 Inertisierungsverfahren zur Brandvermeidung
PCT/EP2006/000267 WO2006074942A1 (fr) 2005-01-17 2006-01-13 Procede d'inertisation pour prevenir un incendie

Publications (2)

Publication Number Publication Date
EP1838396A1 true EP1838396A1 (fr) 2007-10-03
EP1838396B1 EP1838396B1 (fr) 2009-09-23

Family

ID=36072234

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06700499A Active EP1838396B1 (fr) 2005-01-17 2006-01-13 Procede d'inertisation pour prevenir un incendie

Country Status (21)

Country Link
US (1) US20100012334A1 (fr)
EP (1) EP1838396B1 (fr)
JP (1) JP4654249B2 (fr)
KR (1) KR101255387B1 (fr)
CN (1) CN101119772B (fr)
AT (1) ATE443543T1 (fr)
AU (1) AU2006205895B2 (fr)
BR (1) BRPI0606315A2 (fr)
CA (1) CA2594796C (fr)
DE (2) DE102005002172A1 (fr)
DK (1) DK1838396T3 (fr)
ES (1) ES2333813T3 (fr)
HK (1) HK1108399A1 (fr)
MX (1) MX2007008408A (fr)
NO (1) NO339355B1 (fr)
PL (1) PL1838396T3 (fr)
PT (1) PT1838396E (fr)
RU (1) RU2362600C2 (fr)
TW (1) TW200702015A (fr)
UA (1) UA90126C2 (fr)
WO (1) WO2006074942A1 (fr)

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RU2465512C1 (ru) * 2011-04-19 2012-10-27 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" Устройство для поддержания состава воздушной среды в герметичном контейнере
DE102011112741B4 (de) * 2011-09-07 2015-09-03 Werner Hofmann Inertgasgedeckte geschlossene Mahl-und Siebanlage
KR101244426B1 (ko) * 2012-12-03 2013-03-18 (유)성문 화재예방 및 억제장치
EP2881149B1 (fr) * 2013-12-04 2018-02-28 Amrona AG Installation de réduction d'oxygène et procédé de fonctionnement d'une installation de réduction d'oxygène
WO2018119098A1 (fr) 2016-12-20 2018-06-28 Carrier Corporation Système et procédé de protection contre l'incendie pour enceinte
RU2748912C1 (ru) * 2020-07-14 2021-06-01 Александр Вениаминович Куликов Способ безопасного обращения с энергетическими материалами
KR102239961B1 (ko) 2020-08-19 2021-04-14 포이스주식회사 자연발화성 화학물질의 초기 화재 억제장치 및 화재 억제방법
RU2766144C1 (ru) * 2021-05-27 2022-02-08 Александр Вениаминович Куликов Контейнер для безопасного обращения с энергетическими материалами
CN114306977B (zh) * 2021-12-24 2022-08-09 南京昭凌精密机械有限公司 一种防爆系统

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Also Published As

Publication number Publication date
RU2007131271A (ru) 2009-02-27
BRPI0606315A2 (pt) 2009-06-16
ATE443543T1 (de) 2009-10-15
CN101119772B (zh) 2011-11-30
RU2362600C2 (ru) 2009-07-27
CA2594796A1 (fr) 2006-07-20
WO2006074942A1 (fr) 2006-07-20
UA90126C2 (uk) 2010-04-12
DE102005002172A1 (de) 2006-07-27
ES2333813T3 (es) 2010-03-01
EP1838396B1 (fr) 2009-09-23
AU2006205895B2 (en) 2011-03-31
NO339355B1 (no) 2016-12-05
TW200702015A (en) 2007-01-16
US20100012334A1 (en) 2010-01-21
PT1838396E (pt) 2009-11-30
KR20070102512A (ko) 2007-10-18
CN101119772A (zh) 2008-02-06
DK1838396T3 (da) 2010-02-01
PL1838396T3 (pl) 2010-02-26
MX2007008408A (es) 2007-11-21
HK1108399A1 (en) 2008-05-09
NO20074209L (no) 2007-10-09
DE502006004914D1 (de) 2009-11-05
AU2006205895A1 (en) 2006-07-20
CA2594796C (fr) 2013-07-16
KR101255387B1 (ko) 2013-04-17
JP2008526409A (ja) 2008-07-24
JP4654249B2 (ja) 2011-03-16

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