EP1293230B1 - Procédé et installation d'extinction d'incendie - Google Patents

Procédé et installation d'extinction d'incendie Download PDF

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Publication number
EP1293230B1
EP1293230B1 EP01122164A EP01122164A EP1293230B1 EP 1293230 B1 EP1293230 B1 EP 1293230B1 EP 01122164 A EP01122164 A EP 01122164A EP 01122164 A EP01122164 A EP 01122164A EP 1293230 B1 EP1293230 B1 EP 1293230B1
Authority
EP
European Patent Office
Prior art keywords
extinguishing
gas
liquid
pipe system
nozzle
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.)
Expired - Lifetime
Application number
EP01122164A
Other languages
German (de)
English (en)
Other versions
EP1293230A1 (fr
Inventor
Bruno Dr. Covelli
Markus Dr. Müller
Patrick Fernandes
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.)
Siemens Schweiz AG
Original Assignee
Siemens Schweiz 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 Siemens Schweiz AG filed Critical Siemens Schweiz AG
Priority to ES01122164T priority Critical patent/ES2277878T3/es
Priority to EP01122164A priority patent/EP1293230B1/fr
Priority to DK01122164T priority patent/DK1293230T3/da
Priority to DE50111557T priority patent/DE50111557D1/de
Priority to AT01122164T priority patent/ATE346659T1/de
Publication of EP1293230A1 publication Critical patent/EP1293230A1/fr
Application granted granted Critical
Publication of EP1293230B1 publication Critical patent/EP1293230B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C5/00—Making of fire-extinguishing materials immediately before use
    • A62C5/008—Making of fire-extinguishing materials immediately before use for producing other mixtures of different gases or vapours, water and chemicals, e.g. water and wetting agents, water and gases
    • 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
    • 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
    • A62C99/0072—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using sprayed or atomised water

Definitions

  • the present invention is in the field of fire extinguishing with an extinguishing gas, in which the flame area an extinguishing gas is supplied and thereby the atmospheric oxygen is displaced to a value below the extinguishing concentration.
  • the cooling of the fuel is carried out with an extinguishing liquid, usually water.
  • an extinguishing liquid usually water.
  • This method can control a fire and prevent its spread.
  • the extinguishing liquid often does not reach all the hidden fires, a complete erasure is not always possible.
  • New extinguishing techniques use water mist or spray, which has the same effect of protecting rooms from conventional sprinkler or deluge systems.
  • the fire is controlled but not necessarily deleted, since a deletion occurs only when the fire evaporates so much water that the oxygen concentration drops to extinguishing concentration.
  • this method of extinguishing is not covered by international guidelines and there are no bases for the design of such extinguishing systems for a safe extinguishing of all fire sizes in a protected area.
  • the oxygen depletion in the oxidation zone is achieved with inert or chemical quenching gases, wherein by mixing the supply air to the fire with the quenching gas, the oxygen content in the reaction zone is diluted so that the oxidation reaction stops. If used correctly, extinguishing gases can be completely extinguished within a few seconds. However, since the source of the fire is not cooled, there is the danger that the oxidation reaction will restart when the extinguishing concentration in the ambient air of the fire compartment decreases. For this reason, the extinguishing gas concentration in the vicinity of the fire must be maintained for several minutes, which means a high consumption of extinguishing gas and corresponding means for storing these extinguishing gas quantities.
  • foam extinguishing systems are not suitable for combating many emergence fires.
  • the invention relates to an extinguishing system for fire extinguishing with a quenching gas, with a compressed gas storage, at least one pressure vessel for the quenching gas, at least one gas outlet nozzle and a conduit system containing gas extinguishing system with which the flame area an extinguishing gas supplied and thereby the atmospheric oxygen to a value below Extinguishing concentration is displaced, and with a gas extinguishing system supplementing and a liquid storage containing system for the addition of extinguishing liquid in the line system.
  • the extinguishing gas is supplied to the extinguishing liquid and a mixing space, wherein valves are provided in the respective lines.
  • this extinguishing system is to be improved so that the delivery pressure is kept as constant as possible during the deletion.
  • the pressurized gas reservoir has a plurality of pressurized gas containers and a collecting pipe arranged between them and the line system, that a first pressure reduction element is arranged between the collecting pipe and the line system, and that a pressure line for liquid supply branches off from the collecting pipe contains second depressurizing element.
  • a first preferred embodiment of the extinguishing system according to the invention is characterized in that the admixing of extinguishing liquid takes place with the formation of a two-phase flow in the line system and in the at least one nozzle.
  • a second preferred embodiment of the extinguishing system according to the invention is characterized in that the liquid reservoir contains at least one liquid container with extinguishing liquid and an extinguishing liquid pipe from the liquid reservoir to the said pipe system.
  • a third preferred embodiment of the extinguishing system according to the invention is characterized in that, for admixing extinguishing liquid via the collecting tube and the second pressure-reducing element, the head space of the at least one liquid container is superimposed with extinguishing gas and thereby extinguishing liquid is pressed out of the at least one liquid container into the conduit system and together thereinto is supplied with the extinguishing gas of the at least one nozzle.
  • a further preferred embodiment of the extinguishing system according to the invention is characterized in that the at least one nozzle acts as a two-substance nozzle and simultaneously sprays extinguishing liquid with the extinguishing gas.
  • the extinguishing system consists according to the representation of a line system 1 with nozzles 2, which are provided as two-fluid nozzles for simultaneous spraying of quenching gas and extinguishing liquid.
  • the extinguishing gas for example an inert gas, is in a compressed gas storage 3 with several pressure vessels 5 each having a high pressure valve 5. When using only one pressure vessel 5, this is connected directly to the line system 1, when using multiple pressure vessel 5 is between them and the line system. 1 a manifold 6 is provided.
  • the collecting pipe 6 is connected to the pipe system 1 via a first gas throttle 7, by means of which the delivery pressure in the pipe system 1 is throttled to an optimum nozzle pressure.
  • the reference numeral 8 denotes a device for triggering the high-pressure valves 4.
  • the arrangement of the first gas throttle 7 exploits the phenomenon of the critical flow of compressible media by throttling in order to keep the delivery pressure as constant as possible during the deletion.
  • the delivery pressure changes only slowly and guarantees optimal nozzle pressure during the decisive deletion / flooding phase.
  • the pressure reduction caused by the throttle 7 means that when opening the valves 4 in the line system 1 and the nozzles 2 no dangerous water hammer occurs.
  • materials are used, which need not have high-pressure quality.
  • the previously described part of the inventive extinguishing system corresponds to a known gas extinguishing system.
  • heptafluoropropane can be used instead of water.
  • the extinguishing gas is supplied to the at least one nozzle 2 via the line system 1 and distributed in the protected area.
  • the headspace of the water tank 10 is superimposed with quenching gas from the manifold 6 via the second gas throttle 14 and thereby pressed water from the water tanks 10 into the conduit 12 and thus into the conduit system 1.
  • the conduit system 1 thus flows a water-gas mixture to the nozzles 2, from which at the same extinguishing gas and a small volume fraction of water is sprayed.

Landscapes

  • 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)
  • Alarm Systems (AREA)
  • Nozzles (AREA)
  • Fire-Extinguishing Compositions (AREA)

Claims (5)

  1. Installation d'extinction pour l'extinction d'incendie avec un gaz extincteur, avec une installation d'extinction à gaz contenant un approvisionnement en gaz comprimé (3), au moins un récipient sous pression (5) pour le gaz extincteur, au moins une buse de sortie de gaz (2) et un système de conduite (1), laquelle installation permet l'amenée d'un gaz extincteur à la zone des flammes et d'ainsi ramener l'oxygène de l'air à une valeur située en dessous de la concentration d'extinction, et avec une installation qui complète l'installation d'extinction à gaz et comprend un approvisionnement en liquide (9), ladite installation étant destinée à additionner du liquide extincteur au système de conduite (1), caractérisée en ce que l'approvisionnement en gaz comprimé (3) comporte plusieurs récipients de gaz comprimé ainsi qu'un tuyau collecteur (6) situé entre ceux-ci et le système de conduite (1), qu'un étrangleur des gaz (7) est disposé entre le tuyau collecteur (6) et le système de conduite (1) et en ce qu'une conduite sous pression (13) part du tuyau collecteur (6) pour aller vers l'approvisionnement en liquide (9), lequel contient un deuxième étrangleur des gaz (14).
  2. Installation d'extinction selon la revendication 1, caractérisée en ce que l'addition de liquide extincteur se fait avec formation d'un écoulement diphasique dans le système de conduite (1) et dans l'au moins une buse (2).
  3. Installation d'extinction selon la revendication 2, caractérisée en ce que l'approvisionnement en liquide (9) comprend au moins un récipient de liquide (10), contenant un liquide extincteur, et une conduite de liquide extincteur (12) allant de l'approvisionnement en liquide (9) audit système de conduite (1).
  4. Installation d'extinction selon la revendication 3, caractérisée en ce que, aux fins de l'addition de liquide extincteur, l'espace de tête de l'au moins un récipient de liquide (10) est surmonté de gaz extincteur via le tuyau collecteur (6) et le deuxième élément de réduction de la pression (14) et, de ce fait, du liquide extincteur est poussé dans le système de conduite (1) à partir de l'au moins un récipient de liquide (10) et, dans celui-ci, est amené à l'au moins une buse (2) conjointement avec le gaz extincteur.
  5. Installation d'extinction selon la revendication 4, caractérisée en ce que l'au moins une buse (2) agit en tant que buse binaire et pulvérise du liquide extincteur en même temps que le gaz extincteur.
EP01122164A 2001-09-15 2001-09-15 Procédé et installation d'extinction d'incendie Expired - Lifetime EP1293230B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES01122164T ES2277878T3 (es) 2001-09-15 2001-09-15 Procedimiento para la extincion de incendios e instalacion de extincion.
EP01122164A EP1293230B1 (fr) 2001-09-15 2001-09-15 Procédé et installation d'extinction d'incendie
DK01122164T DK1293230T3 (da) 2001-09-15 2001-09-15 Fremgangsmåde til brandslukning og slukningsanlæg
DE50111557T DE50111557D1 (de) 2001-09-15 2001-09-15 Verfahren zur Brandlöschung und Löschanlage
AT01122164T ATE346659T1 (de) 2001-09-15 2001-09-15 Verfahren zur brandlöschung und löschanlage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01122164A EP1293230B1 (fr) 2001-09-15 2001-09-15 Procédé et installation d'extinction d'incendie

Publications (2)

Publication Number Publication Date
EP1293230A1 EP1293230A1 (fr) 2003-03-19
EP1293230B1 true EP1293230B1 (fr) 2006-11-29

Family

ID=8178641

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01122164A Expired - Lifetime EP1293230B1 (fr) 2001-09-15 2001-09-15 Procédé et installation d'extinction d'incendie

Country Status (5)

Country Link
EP (1) EP1293230B1 (fr)
AT (1) ATE346659T1 (fr)
DE (1) DE50111557D1 (fr)
DK (1) DK1293230T3 (fr)
ES (1) ES2277878T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2386835B (en) 2002-03-28 2005-04-27 Kidde Plc Fire and explosion suppression
ATE479476T1 (de) * 2008-10-07 2010-09-15 Amrona Ag Inertgasfeuerlöschanlage zur minderung des risikos und zum löschen von bränden in einem schutzraum
EP2873443B1 (fr) * 2013-11-13 2016-11-23 Apparatebau Gauting GmbH Dispositif de protection contre l'incendie et procédé de lutte contre l'incendie
US10058722B2 (en) 2015-02-18 2018-08-28 Apparatebau Gauting Gmbh Fire protection device and method for fire fighting

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB875267A (en) * 1957-09-02 1961-08-16 Automatiskt Brandalarm Ab Improvements in or relating to automatic fire-extinguishing installations
US3199600A (en) * 1962-04-17 1965-08-10 Jacobs Alan Fog-projecting fire extinguisher construction
RU2074544C1 (ru) * 1994-03-10 1997-02-27 Владимир Семенович Терпигорьев Способ пожаротушения газожидкостной смесью и газожидкостная форсунка для его осуществления
AU2606400A (en) * 1999-01-11 2000-08-01 New World Technologies Corp. Fire suppression apparatus and method

Also Published As

Publication number Publication date
EP1293230A1 (fr) 2003-03-19
DE50111557D1 (de) 2007-01-11
ATE346659T1 (de) 2006-12-15
ES2277878T3 (es) 2007-08-01
DK1293230T3 (da) 2007-03-12

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