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EP0871517A1 - Extincteur produisant un aerosol - Google Patents

Extincteur produisant un aerosol

Info

Publication number
EP0871517A1
EP0871517A1 EP96943932A EP96943932A EP0871517A1 EP 0871517 A1 EP0871517 A1 EP 0871517A1 EP 96943932 A EP96943932 A EP 96943932A EP 96943932 A EP96943932 A EP 96943932A EP 0871517 A1 EP0871517 A1 EP 0871517A1
Authority
EP
European Patent Office
Prior art keywords
extension
fire extinguisher
ignition
screw part
aerosol
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.)
Ceased
Application number
EP96943932A
Other languages
German (de)
English (en)
Inventor
Günter GROVE
Wolfgang Kaiser
Ehrfried Schillinger
Anton Bretfeld
Günther Faber
Harald Frank
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.)
Dynamit Nobel AG
Dynamit Nobel GmbH Explosivstoff und Systemtechnik
Original Assignee
Dynamit Nobel AG
Dynamit Nobel GmbH Explosivstoff und Systemtechnik
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 Dynamit Nobel AG, Dynamit Nobel GmbH Explosivstoff und Systemtechnik filed Critical Dynamit Nobel AG
Publication of EP0871517A1 publication Critical patent/EP0871517A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C5/00—Making of fire-extinguishing materials immediately before use
    • A62C5/006—Extinguishants produced by combustion
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/02—Portable extinguishers which are permanently pressurised or pressurised immediately before use with pressure gas produced by chemicals
    • A62C13/22—Portable extinguishers which are permanently pressurised or pressurised immediately before use with pressure gas produced by chemicals with incendiary substances producing pressure gas
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
    • A62C35/08—Containers destroyed or opened by bursting charge

Definitions

  • the invention relates to an aerosol-generating fire extinguishing generator according to the preamble of the patent claim
  • Such a fire extinguisher generator is known from EP-A-0 569 025.
  • This fire extinguisher generator has a housing which, among other things. contains an aerosol-generating set which forms an aerosol during combustion, which is suitable for extinguishing fires, e.g. in transport facilities or closed building rooms.
  • An ignition device is provided to ignite this set.
  • a fire extinguisher generator is described in German patent application P 44 19 098, which is considered to be state of the art in accordance with section 3 (2) of the PatG, and contains an aerosol-generating set, a reaction chamber and a cooling arrangement in a housing.
  • the housing is closed with a cover to which an ignition device is attached.
  • a first is in an opening of the lid from the outside Screw part and a second screw part inserted from the inside, which is screwed through the lid opening to the first screw part.
  • the first screw part serves as a receptacle for part of the ignition device.
  • the remaining part of the ignition device protrudes through an opening of the second screw part into the interior of the housing and is provided there with lateral outlet openings, below which the ignition element of the ignition device is located.
  • the ignition device must be designed and constructed in accordance with the construction of the other parts of the fire extinguisher generator.
  • an ignition device with correspondingly adapted dimensions is required.
  • the invention has for its object to provide an aerosol-generating fire extinguisher generator which can be ignited with a standardized igniter without requiring any special adaptation of the igniter to the aerosol generating set.
  • the ignition device is contained in this receptacle.
  • the ignition device from the Screw part enclosed to the inside of the housing.
  • An extension protrudes from the screw part, which is not part of the ignition device. This extension is designed such that the combustion gases emerging from it come into contact with the aerosol-generating set in a suitable manner in order to enable this set to burn properly.
  • the ignition device can be used universally for all types of fire extinguishing generators. An ignition device can also be used, which is otherwise used for completely different purposes.
  • the pipe socket and the screw part screwed into the pipe socket form a receiving space which is suitable for the ignition device used.
  • the part that must be matched to the set to be lit is the screw part or the extension of the screw part.
  • the screw part and extension are preferably formed as a one-piece part, but it is also possible to provide the extension on the screw part in an interchangeable manner.
  • the extension merely has the task of directing the combustion gases of the ignition charge to the point at which the aerosol-generating charge is to be burned off.
  • the pipe socket is preferably formed in one piece on the cover, but a separate pipe socket can also be used, which is fastened in a sealing manner to the cover opening.
  • the ignition element is contained in a capsule together with the ignition charge, the ignition charge in the base of the capsule opening into the extension of the screw part Opening is arranged.
  • the capsule is completely contained in the receptacle formed by the pipe socket and the screw part, ie the capsule does not protrude from the receptacle.
  • the opening in the base of the capsule is connected to the hollow interior of the extension, so that the combustion gases of the ignition unit pass through the empty extension of the screw part to the aerosol-generating unit.
  • the main advantage of the invention is that a standardized ignition device can be used and that the individual adaptation to the aerosol-generating set takes place exclusively by using a special screw part, the extension of which is matched to the set in question.
  • Fig. 1 shows a longitudinal section of a first embodiment of the fire extinguishing generator
  • the fire extinguisher generator shown in FIG. 1 has a cup-shaped housing 10 made of sheet metal, for example steel, the bottom wall 11 of which is designed as a perforated wall, which has numerous outlet openings 12 arranged in a distributed manner, through which aerosol can flow out of the housing .
  • a moisture-proof barrier film 13 is spread out from the interior of the housing over the bottom 11. The barrier film 13 is partially pierced under the pressure of the aerosol to expose the outlet openings 12.
  • An annular spacer 14 is supported on the edge of the barrier film and in turn supports a mesh grating 45 which extends transversely through the housing 10.
  • the spacer 14 consists of a ring with radial walls 14a, which prevent the mesh 32 from sagging.
  • a network grid 16 is located above the cooling device 15 and, together with a further network grid 17 parallel thereto, delimits a reaction space 18a.
  • the aerosol generating set 18 is located above the net 17 and is axially pressed against the net 17 by a spring 19.
  • the lid 20 is a see- ring 21 held in position.
  • the locking ring 21 has a larger outer diameter than the cover 20 and it is surrounded by a flange 22 of the housing 10.
  • the cover 20 has an integrally formed, outwardly projecting central pipe socket 23 which receives part of the ignition device 24.
  • a screw part 25 screwed into the pipe socket 23 from the inside of the cover secures the igniter 24 in the pipe socket 23.
  • the igniter 24 is an electrical igniter with contact terminals 24a, to which a voltage is applied to trigger the igniter 24 can be created.
  • the igniter 24 has a metallic capsule 26 in which a pyrotechnic igniter 27 is contained. Above the bottom 28 of the cup-shaped capsule 26 there is an ignition charge 29 which is arranged at an axial distance from the ignition element 26. A central bursting point 30 is provided in the bottom 28, through which the combustion gases of the ignition charge 29 can flow out of the capsule 26.
  • the capsule 26 is tightly enclosed circumferentially by the screw part 25. It has a section 26a of larger diameter at the upper end, against which the upper end of the screw part 25 presses.
  • the inside diameter of the pipe socket 23 is correspondingly larger than the inside diameter of the screw part 25, so that the pipe socket 23 can suitably accommodate the area 26a.
  • the ignition device 24 with a connection socket protrudes through an end opening 31 of the pipe socket 23.
  • a plug 32 is attached here, through which the ignition wires are connected to the ignition element 27.
  • the pipe socket 23 and the screw part 25 form a receptacle for the entire capsule 26 of the ignition device 24.
  • This receptacle is delimited towards the inside of the housing by the end wall 25a of the screw part 25 and to the outside from the one surrounding the opening 31, to the inside projecting flange 34 of the pipe socket 23.
  • a tubular extension 35 protrudes from the end wall 25a of the screw part 25 and has a smaller diameter than the capsule 26 of the ignition device 24.
  • the extension 35 has a bore 36 which is open towards the front, while at the rear end it passes through a front end wall 37 is closed. Openings 38 distributed circumferentially are provided in the peripheral wall of the extension 35.
  • the extension 35 is integrally formed on the screw part 25. Its cavity 36 with the openings 38 serves to transfer the combustion gases of the ignition charge 29 to the charge 18.
  • the aerosol generating set 18 contains a central axial channel 39 into which the extension 35 of the screw part 25 projects.
  • the axial channel 39 is delimited circumferentially by ribs 40 of the set 18 projecting inward in a star shape.
  • the ignition element 27 contains a squib (not shown) or a similar ignition element as a multilayer bridge element, which can be initiated with the aid of a built-in current bridge.
  • the combustion gases emerge from an attachment 41 of the ignition element 27 into a cavity 42 enclosed by the capsule 26 and ignite the ignition charge 29.
  • the combustion gases of the ignition charge 29 flow through the bursting point 30 of the capsule 26 into the extension 35 of the screw part 25 and from there through the openings 38 to the aerosol generating set 18, which is ignited centrally.
  • the aerosol formed when the set 18 burns flows through the grid 17 into the reaction space 18a and from there through the grid 16, the cooling device 15 and the grid 45 to the outlet openings 12.
  • the cooling device 15, the mesh grids 45, 16, 17, the spacers 14.33 and the set 15 are surrounded by a non-combustible inner sleeve 43, which consists of insulating heat-resistant material and is used for thermal protection of the housing 10.
  • a receiving part 50 is attached to the cover 20, which is placed against the cover 20 from the inside and is secured on the outside by a locking ring 51.
  • the receiving part 50 is sealed with a seal 52 against the lid opening.
  • the screw part 25 is screwed into the receiving part 50.
  • the receiving part 50 contains the ignition device 24, which is designed here as an ignition plug and extends into the screw part 25.
  • the ignition charge 29 is located directly above the bottom of the extension 35 of the screw part 25 and the outlet openings 38 are arranged above the ignition charge 29.
  • the squib forming the igniter 24 does not require a surrounding capsule. In the exemplary embodiment in FIG. 2, the ignition does not occur suddenly, as in the first exemplary embodiment, but slowly over a certain period of time.
  • the ignition charge 29 has a longer burning time.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Spark Plugs (AREA)

Abstract

L'invention concerne un extincteur contenant une unité produisant un aérosol (18) et un système d'allumage (24) permettant l'allumage de cette unité (18). Ce système d'allumage (24) est situé dans un logement formé par une tubulure (23) du couvercle (20) et par une partie filetée (25) vissée depuis l'intérieur dans cette tubulure (23). Un prolongement vide (35), de diamètre réduit, ménagé sur la partie filetée (25) fait saillie dans un canal (39) de l'unité (18) et comporte des orifices de sortie (38) par lesquelles peuvent s'échapper les gaz de combustion provenant de l'unité d'allumage (29). Le même élément d'allumage (27) peut être utilisé pour différentes unités (18), puisque seule la partie filetée (25) ou son prolongement (35) doivent être adaptés à l'unité (18) en question.
EP96943932A 1995-12-13 1996-12-12 Extincteur produisant un aerosol Ceased EP0871517A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1995146526 DE19546526A1 (de) 1995-12-13 1995-12-13 Aerosolerzeugender Feuerlöschgenerator
DE19546526 1995-12-13
PCT/EP1996/005561 WO1997021468A1 (fr) 1995-12-13 1996-12-12 Extincteur produisant un aerosol

Publications (1)

Publication Number Publication Date
EP0871517A1 true EP0871517A1 (fr) 1998-10-21

Family

ID=7780003

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96943932A Ceased EP0871517A1 (fr) 1995-12-13 1996-12-12 Extincteur produisant un aerosol

Country Status (4)

Country Link
EP (1) EP0871517A1 (fr)
DE (1) DE19546526A1 (fr)
NO (1) NO982725L (fr)
WO (1) WO1997021468A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1294615B1 (it) * 1997-09-10 1999-04-12 Firecom S N C Di Angelo Rondin Dispositivo di protezione antincendio per veicoli
RU2163495C1 (ru) * 2000-03-14 2001-02-27 Щетинин Виктор Григорьевич Аэрозольный генератор для тушения пожаров
RU2158152C1 (ru) * 2000-04-07 2000-10-27 Подкользин Геннадий Петрович Устройство для тушения пожаров
RU2179047C2 (ru) * 2000-04-20 2002-02-10 СТЕНКОВОЙ Владимир Ильич Устройство для объемного тушения пожара
RU2211063C2 (ru) * 2000-08-21 2003-08-27 Общество с ограниченной ответственностью "Источник" Газогенерирующее устройство
RU2205671C1 (ru) * 2002-04-03 2003-06-10 Закрытое Акционерное Общество "Нпг Гранит-Саламандра" Генератор огнетушащего аэрозоля
ITTO20030385A1 (it) * 2003-05-23 2004-11-24 Euro Spare Parts Srl Estintore portatile ad aerosol
EP2717971B1 (fr) * 2011-06-06 2015-08-12 Fireaway Inc. Appareil de suppression d'incendie et procédé l'utilisant dans un compartiment fermé
WO2019035013A1 (fr) * 2017-08-16 2019-02-21 Osaühing Mythika Invest Dispositif de génération de gaz de suppression d'incendies
WO2019034911A1 (fr) * 2017-08-16 2019-02-21 Osaühing Mythika Invest Dispositif de génération de gaz pour la lutte contre l'incendie

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4419098A1 (de) * 1994-06-01 1995-12-07 Dynamit Nobel Ag Feuerlöschgenerator mit einem Gehäuse

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9721468A1 *

Also Published As

Publication number Publication date
WO1997021468A1 (fr) 1997-06-19
NO982725L (no) 1998-07-16
DE19546526A1 (de) 1997-06-19
NO982725D0 (no) 1998-06-12

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