EP1588741A1 - Extincteur d'incendie - Google Patents

Extincteur d'incendie Download PDF

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Publication number
EP1588741A1
EP1588741A1 EP04101612A EP04101612A EP1588741A1 EP 1588741 A1 EP1588741 A1 EP 1588741A1 EP 04101612 A EP04101612 A EP 04101612A EP 04101612 A EP04101612 A EP 04101612A EP 1588741 A1 EP1588741 A1 EP 1588741A1
Authority
EP
European Patent Office
Prior art keywords
extinguishing agent
fire extinguisher
container
gas
propellant gas
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.)
Withdrawn
Application number
EP04101612A
Other languages
German (de)
English (en)
Inventor
Frank Felten
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.)
Luxembourg Patent Co SA
Original Assignee
Luxembourg Patent Co SA
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 Luxembourg Patent Co SA filed Critical Luxembourg Patent Co SA
Priority to EP04101612A priority Critical patent/EP1588741A1/fr
Publication of EP1588741A1 publication Critical patent/EP1588741A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/66—Portable extinguishers which are permanently pressurised or pressurised immediately before use with extinguishing material and pressure gas being stored in separate containers
    • A62C13/72—Portable extinguishers which are permanently pressurised or pressurised immediately before use with extinguishing material and pressure gas being stored in separate containers characterised by releasing means operating essentially simultaneously on both containers
    • A62C13/74—Portable extinguishers which are permanently pressurised or pressurised immediately before use with extinguishing material and pressure gas being stored in separate containers characterised by releasing means operating essentially simultaneously on both containers the pressure gas container being pierced or broken
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/76—Details or accessories

Definitions

  • the present invention relates to a fire extinguisher, in particular a fire extinguisher charged with a propellant when triggered, the propellant gas and an extinguishing agent, until triggered in separate Reserved containers.
  • the state of the art includes both "continuous pressure fire extinguishers”, i.e. Fire extinguishers where the extinguishing agent container is constantly under pressure, as well as so-called “charging fire extinguishers”, i. Fire extinguishers in which Use case of the extinguishing agent container is charged with a propellant gas to there form a pressure pad with which the extinguishing agent via a spray nozzle is expelled.
  • the extinguishing agent container For both types of fire extinguishers, the extinguishing agent container must be considered Be formed pressure vessel, which is designed for maximum gas pressure. However, a high pressure resistance of the extinguishing agent container leads to a high weight of this container and also limits the choice of materials and design freedom in the design of the container. In practice, at Both types exclusively cylindrical extinguishing agent containers made of steel used. For portable fire extinguishers the maximum operating pressure is off Weight reasons usually limited to a maximum of 20 bar. To deal with this relatively low propellant gas pressure in the extinguishing agent tank a sufficiently long To achieve the service life of the fire extinguisher must be in the extinguishing agent tank enough space for a large-volume gas cushion be provided.
  • the volume of the extinguishing agent container must be much larger than that Be volume of the stored extinguishing agent.
  • Another disadvantage of the two already mentioned fire extinguisher types is that the operating pressure during unloading constantly decreases, so that the spray behavior of the Fire extinguisher constantly changing.
  • An object of the present invention is to provide a simple one To propose fire extinguishers, the above-mentioned disadvantages, or only to a greatly reduced extent. This task is done by a fire extinguisher according to claim 1 solved.
  • a fire extinguisher comprises an extinguishing agent container in which an extinguishing agent is stored, a propellant container in the one Propellant is stored under high pressure, propellant discharge to the To discharge propellant gas from the propellant gas container into the extinguishing agent container, where it pressurizes the extinguishing agent and extinguishing agent discharge agent to the pressurized extinguishing media from the extinguishing agent container to the outside discharged.
  • the propellant discharge means comprise a Pressure regulator, the discharge of the propellant gas in the extinguishing agent container such regulates that during the unloading of the extinguishing agent container, herein largely constant Austreibdruck is generated.
  • the pressure regulator limits the pressure in the extinguishing agent tank to a value of optimal spraying of the extinguishing agent guaranteed. These are usually 2 to 7 bar.
  • the extinguishing agent container must therefore only for a relative low container pressure can be designed. A high pressure resistance of the Extinguishing agent container is therefore no longer required. The weight of this Container can thus be reduced, and restrictions on the Material selection and design freedom in the design of the container accounts.
  • the volume of the extinguishing agent container only has to be slightly larger than the volume of the extinguished extinguishing agent, causing the fire extinguisher more compact, handy and lighter.
  • the propellant gas container and the propellant discharge means are Preferably, disposed within the extinguishing agent container, wherein the Output of the pressure regulator is equipped with a closure means which closes the outlet of the pressure regulator until the propellant gas is discharged.
  • a closure means which closes the outlet of the pressure regulator until the propellant gas is discharged.
  • the closure means at the outlet of the pressure regulator may, e.g. when Platzmembrane or check valve to be formed.
  • a check valve comprises a cylindrical nozzle with at least one lateral outlet for the Propellant.
  • An elastic piece of tubing is in this case over the cylindrical That it is the at least one outlet for the Extinguishing agent seals, but the pressurized propellant through the Let out the outlet opening.
  • the pressure regulator is preferably for a reduced operating pressure designed between 2 bar and 7 bar.
  • the pressure regulator e.g. advantageous for a pressure between 2.5 bar and 3.5 bar designed.
  • the extinguishing agent tank for the reduced operating pressure is designed, advantageously comprises a spring-loaded safety valve as additional security.
  • the extinguishing agent container may also be an aluminum or Be plastic container, which increases the weight of the extinguishing agent container significantly reduce.
  • the propellant gas tank is normally a commercial high-pressure gas cartridge formed with a puncture membrane. Can be used e.g. Nitrogen cartridges with a pressure of 200 bar and possibly also carbon dioxide cartridges reach.
  • the extinguishing agent discharge means normally include a Fire extinguisher valve, which is screwed onto the Löschschschbenzo Iter.
  • This Valve includes an extinguishing agent channel for the extinguishing agent, a valve seat in the Release channel, a closing element with the fire extinguisher valve closed pressed by a closing spring on the valve seat, an actuating device, which allows the closing element from its valve seat Press to open the extinguishing agent channel for the extinguishing agent.
  • the Gas cartridge with puncture membrane is beneficial to the fire extinguisher valve in axial extension of the extinguishing agent channel for the extinguishing agent attached.
  • the Actuator forms a puncture pin below the closing element from, the opening of the extinguishing agent channel for the extinguishing agent the Puncture membrane of the gas cartridge pierces.
  • the fire extinguisher valve a connection piece for the gas cartridge, and the pressure regulator is arranged laterally on this connection piece. So that the pressure regulator the Assembly of the fire extinguisher valve on the extinguishing agent container not hindered, it is preferably rotatably attached to the connection piece.
  • a compact, reliable pressure regulator is advantageous as follows built up. It comprises a housing with a piston chamber in which a piston is arranged axially displaceable.
  • the piston has an end face, which is acted upon by the pressure in the extinguishing agent tank.
  • a spring is applied the piston with a spring force which is the pressure in the extinguishing agent container opposes.
  • a piston boss is sealed in a bore of the housing introduced, which has a much smaller diameter than the piston chamber having.
  • the propellant flows through a gas inlet channel and a Seat in this bore, wherein an end face of the piston neck a Forms sealing surface for the seat.
  • a gas outlet channel extends through the Piston neck and has in the front side of the piston on an orifice. piece placement
  • the extinguisher shown in Fig. 1 for the purpose of illustrating the invention is a portable charging fire extinguisher. He is especially for a liquid Extinguishing agents, such as Water or a water emulsion suitable. However, it is not excluded, the fire extinguisher also for powdered extinguishing agent use.
  • the fire extinguisher shown comprises an extinguishing agent container 10, in FIG the extinguishing agent under atmospheric pressure or optionally below Stored low pressure, a propellant container 12, in which a propellant gas stored under high pressure propellant discharge means 14 to the propellant gas to discharge from the propellant gas container into the extinguishing agent container 10, and Extinguishing agent discharge means 16 to the extinguishing agent from the extinguishing agent container 10 to discharge to the outside.
  • the extinguishing agent discharge means 16 comprise a fire extinguishing valve 18 with a valve body 20 having a valve base 22 with a valve flange 23 trains.
  • the valve body 20 is with its valve flange 23 to a Neck socket 24 of the extinguishing agent container 10 is placed, the valve base 22 projects into extinguishing agent container 10.
  • a threaded sleeve 26 pulls the Valve flange 23 against the end face of the neck piece 24, wherein an O-ring 28th between the valve flange 23 and the neck pipe 24, the seal guaranteed.
  • valve body 20 In the valve body 20 is a channel 30 for the extinguishing agent vorges march. This extinguishing agent channel 30 forms in the valve base 22 a junction 32 and outside the extinguishing agent container 10, an orifice 34 from. In his Junction 32 is a riser 36 used for the extinguishing agent. In his Outlet 34 is an extinguishing agent tube 38 is screwed.
  • a valve seat 42 is arranged.
  • a closing element 44 by a Closing spring 46 pressed onto the valve seat 42.
  • a known Actuator with a lever handle 52 and a valve lifter 54th allows the closing element 44 against the spring force of the closing spring 46th to press from its valve seat 42 and so the extinguishing agent channel 30 for the To open extinguishing agent.
  • the fire extinguisher valve 20 has a Connecting piece 60 for the propellant gas tank 12. A first end of this Connecting piece 60 is screwed into a bore 64 in the valve base 22.
  • the bore 64 extends substantially coaxially with the valve seat 42 the valve body 20. Between the valve seat 42 and the end face of Connecting piece 60, the bore 64 forms a spring chamber 66, in which the closing spring 46 is arranged.
  • the extinguishing agent channel 30 opens below the valve seat 42 laterally into the spring chamber 66th
  • the propellant gas container 12 comprises a commercially available high pressure gas cartridge 70 with a connection head 72 into which a puncture membrane 74 is integrated.
  • the connection head 72 is in the second end of the connection piece 60 screwed.
  • Reference numeral 80 is a puncture pin designated, which is fixed in the spring chamber 66 on the closing element 44 and through an axial through hole 82 of the connecting piece 60th extends.
  • Diaphragm 74 flows the propellant under high pressure into a Gas space 84 within the connection piece 60.
  • An O-ring 85 seals the Puncture pin 80 in the through hole 82 of the connecting piece 60 from and prevents propellant gas from flowing directly into the spring chamber 66.
  • FIG. 2 An advantageous embodiment of the pressure regulator 90 is now also described with reference to FIG. 2. It comprises a housing 92 with a cylindrical chamber 94, in which a piston 96 is axially slidably integrated. An O-ring 98 seals the piston 96 in the first chamber 94. A feather 100 pushes the piston 96 against an end stop, for example by a Spreader 102 is formed. A piston boss 104 is in a bore 106 of the housing 92 inserted, which has a much smaller diameter than the Chamber 94 has. An O-ring 108 seals the piston boss 104 in the Bore 106 from. The end face of the piston boss 104 is Deutscheneine Sealing disk 110 is formed. The latter is opposite a seat 112 which surrounds a gas inlet channel 114.
  • the pressure regulator 90 is shown in the open state in which the propellant gas via the seat 112 into the bore 106 of the pressure regulator 90th can flow in. From here, the propellant gas then passes through a transverse bore 116 in the piston neck 104 in an axial outlet channel 18, the one Outlet 119 in the end face 120 of the piston 96 has. In these Outlet 119 check valve 22 is installed.
  • the shown check valve 122 which is particularly simple in construction, includes one cylindrical stub 124 with at least one lateral outlet opening 126 for the propellant gas and an elastic tube piece 128. The latter is so slipped over the cylindrical nozzle 124 that it is the at least one Outlet opening 126 seals for the extinguishing agent, the pressurized However, propellant gas can flow out through this outlet opening 126.
  • the propellant via the pressure regulator 90 and the check valve 122 flows into the extinguishant container 10, builds up a gas cushion therein, which exerts a compressive force on the piston 96.
  • the latter acts against the Spring force of the spring 100 and the compressive force on the much smaller Cross-section of the piston neck 104 in the second bore 106.
  • the pressure regulator 90 is laterally on the connecting piece 60, between the flange 22 of the fire extinguisher valve 20 and themaschinegas terminologyer12 arranged. So he easily through the neck nozzle 24 in the extinguishing agent container 10, it is around the axis of the spigot 60 rotatable. For this purpose, it has a mounting hole 130, in which the cylindrical central part of the connecting piece 60 is inserted. Two O-rings 132 '' 132 '' seal on both sides of the annular groove 88, via which the propellant in the Gas inlet channel 14 opens.
  • the fire extinguisher tank is filled to extinguishing water up to the pressure regulator 90.
  • the pressure regulator 90 is designed to be in the extinguishing agent container 10 regulates a pressure of 4 bar. With this constant discharge pressure of 4 bar can be a perfect spray of extinguishing water from the Ensure extinguishing agent tank 10. Because it is guaranteed that the pressure in the Extinguishing agent tank 10 is never higher than 4 bar, the extinguishing agent container 10, with a 1.5-fold safety, designed only for a pressure of 6 bar become. It can thus far lighter extinguishing agent containers, as in known fire extinguishers are used. Due to the lower requirements Other materials can be used for compressive strength. So it is e.g. possible the extinguishing agent container made of plastic or aluminum which, of course, means a significant weight reduction.
  • Another advantage of the proposed fire extinguisher is that by the constant Austreibdruck much longer extinguishing times be achieved.

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)
EP04101612A 2004-04-19 2004-04-19 Extincteur d'incendie Withdrawn EP1588741A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04101612A EP1588741A1 (fr) 2004-04-19 2004-04-19 Extincteur d'incendie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04101612A EP1588741A1 (fr) 2004-04-19 2004-04-19 Extincteur d'incendie

Publications (1)

Publication Number Publication Date
EP1588741A1 true EP1588741A1 (fr) 2005-10-26

Family

ID=34928983

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04101612A Withdrawn EP1588741A1 (fr) 2004-04-19 2004-04-19 Extincteur d'incendie

Country Status (1)

Country Link
EP (1) EP1588741A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011022241A1 (fr) * 2009-08-19 2011-02-24 Raytheon Company Procédés et appareil permettant la mise en Œuvre d'un parcours d'évacuation de secours en cas d'incendie
DE102009054918A1 (de) * 2009-12-18 2011-12-15 Fiwarec Valves & Regulators Gmbh & Co. Kg Druckregel-Einheit

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2323408A1 (fr) * 1974-01-04 1977-04-08 Kossowski Boleslas Dispositif extincteur a pression relative constante et en equipression automatique
FR2517211A1 (fr) * 1981-11-30 1983-06-03 Desautel Sa Usines Perfectionnements aux epandeurs de poudre et notamment aux extincteurs
US4505336A (en) * 1979-10-06 1985-03-19 Heckler & Koch Gmbh Fire extinguisher and liquid dispensing apparatus
EP0283568A2 (fr) * 1987-03-18 1988-09-28 Total Walther Feuerschutz GmbH Méthode de fabrication d'un extincteur
DE9409359U1 (de) * 1994-06-09 1994-10-27 Eifel-Spritzguß GmbH, Plastikverarbeitung, 53937 Schleiden Feuerlöscher
WO1996004460A1 (fr) 1994-08-04 1996-02-15 Marathon Oil Company Appareil et procede permettant de boucher temporairement une tubulure
FR2731626A1 (fr) * 1995-03-14 1996-09-20 Cruisiat Denis Dispositif pour l'extinction d'un debut d'incendie
DE19937755A1 (de) * 1999-08-10 2001-03-08 Anton Neumeir Leichtes Kombi-Löschgerät
US20020148508A1 (en) * 2000-03-17 2002-10-17 Ralph Ittlinger Device for controlling presssure

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2323408A1 (fr) * 1974-01-04 1977-04-08 Kossowski Boleslas Dispositif extincteur a pression relative constante et en equipression automatique
US4505336A (en) * 1979-10-06 1985-03-19 Heckler & Koch Gmbh Fire extinguisher and liquid dispensing apparatus
FR2517211A1 (fr) * 1981-11-30 1983-06-03 Desautel Sa Usines Perfectionnements aux epandeurs de poudre et notamment aux extincteurs
EP0283568A2 (fr) * 1987-03-18 1988-09-28 Total Walther Feuerschutz GmbH Méthode de fabrication d'un extincteur
DE9409359U1 (de) * 1994-06-09 1994-10-27 Eifel-Spritzguß GmbH, Plastikverarbeitung, 53937 Schleiden Feuerlöscher
WO1996004460A1 (fr) 1994-08-04 1996-02-15 Marathon Oil Company Appareil et procede permettant de boucher temporairement une tubulure
FR2731626A1 (fr) * 1995-03-14 1996-09-20 Cruisiat Denis Dispositif pour l'extinction d'un debut d'incendie
DE19937755A1 (de) * 1999-08-10 2001-03-08 Anton Neumeir Leichtes Kombi-Löschgerät
US20020148508A1 (en) * 2000-03-17 2002-10-17 Ralph Ittlinger Device for controlling presssure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011022241A1 (fr) * 2009-08-19 2011-02-24 Raytheon Company Procédés et appareil permettant la mise en Œuvre d'un parcours d'évacuation de secours en cas d'incendie
US8276680B2 (en) 2009-08-19 2012-10-02 Raytheon Company Methods and apparatus for providing emergency fire escape path
DE102009054918A1 (de) * 2009-12-18 2011-12-15 Fiwarec Valves & Regulators Gmbh & Co. Kg Druckregel-Einheit

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