EP0686410B1 - Extincteur d'incendie - Google Patents

Extincteur d'incendie Download PDF

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Publication number
EP0686410B1
EP0686410B1 EP95107190A EP95107190A EP0686410B1 EP 0686410 B1 EP0686410 B1 EP 0686410B1 EP 95107190 A EP95107190 A EP 95107190A EP 95107190 A EP95107190 A EP 95107190A EP 0686410 B1 EP0686410 B1 EP 0686410B1
Authority
EP
European Patent Office
Prior art keywords
propellant
extinguisher
extinguishing
fire extinguisher
liquid
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
EP95107190A
Other languages
German (de)
English (en)
Other versions
EP0686410A2 (fr
EP0686410A3 (fr
Inventor
Wolfram Haarmann
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.)
minimax Mobile Services & Co KG GmbH
Original Assignee
Minimax GmbH and Co KG
Preussag AG Minimax
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
Priority claimed from DE9407753U external-priority patent/DE9407753U1/de
Priority claimed from DE29505581U external-priority patent/DE29505581U1/de
Application filed by Minimax GmbH and Co KG, Preussag AG Minimax filed Critical Minimax GmbH and Co KG
Publication of EP0686410A2 publication Critical patent/EP0686410A2/fr
Publication of EP0686410A3 publication Critical patent/EP0686410A3/fr
Application granted granted Critical
Publication of EP0686410B1 publication Critical patent/EP0686410B1/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
    • 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

Definitions

  • the invention relates to a fire extinguisher for liquid extinguishing agents Quick mixing.
  • Extinguishing agent additives e.g. surfactants
  • One way to do this is to Add extinguishing agent in a special container to the extinguisher and propellant from a propellant reservoir through this container to lead into the extinguisher.
  • a container is arranged in the extinguisher itself, which is provided with a bursting film, so that when the Löschers destroyed the container with the propellant and the Extinguishing agent additive is introduced into the extinguishing agent.
  • a fire extinguisher for liquid extinguishing agents is known according to the preamble of claim 1, in which the extinguishing agent is pressurized by the use of the propellant CO 2 and is expelled from the fire extinguisher.
  • the compressed propellant is located in a storage container which is connected to the extinguishing agent container on the side of the extinguishing agent container via a propellant guide tube.
  • the CO 2 leaves the outlet openings cold and with powerful jets and is quickly distributed in the extinguishing agent.
  • the propellant pipe with a nozzle head at its outlet end has a plurality of openings of small diameter.
  • little Diameter means the diameter of the outlet openings is significantly smaller than the diameter of the propellant tube.
  • a nozzle head that is an independent part with the Propellant guide tube is connected, facilitates assembly and the Adaptation to different extinguishing agents.
  • CO 2 is preferably used as the blowing agent in the previously customary manner. However, this does not mean that the invention is fundamentally dependent on the use of CO 2 . Instead of CO 2 , other blowing agents can also be used.
  • the propellant pipe is on Extinguisher head attached.
  • the assembly effort for Assembly of the extinguisher significantly reduced.
  • all essential components, namely propellant reservoir and Extinguishing agent guide tube, on the extinguisher head see DE-A-30 06 945.
  • the inside of the extinguisher arranged container for the extinguishing agent additive can on the surface of the liquid extinguishing agent can be provided floating or on Extinguishing agent head can be attached.
  • FIG. 1 An embodiment is shown schematically in Fig. 1.
  • the Fire extinguisher 11 has an extinguisher head 12 which is connected to a Operating handle 13 and a hose 14 for dispensing the Extinguishing agent is provided.
  • Inside the extinguisher 11 is on the Extinguishing head 12 of the propellant reservoir 15 arranged.
  • the storage container can also be on the outside of the extinguisher 11 to be appropriate.
  • the propellant guide tube is on the extinguisher head 12 16 attached, which at its outlet end Nozzle head 17 with a plurality of small openings Has diameter.
  • a riser pipe is attached (not shown in the drawing) that down to the bottom Area of the reservoir 15 is sufficient.
  • the propellant is in the riser after the extinguisher has been triggered by the extinguisher head 12 passed into the propellant guide tube 16 and enters the nozzle head 17 in the extinguishing liquid 19 a.
  • Additions to the extinguishing liquid are at this embodiment preferably by a in the Extinguishing liquid floating (not shown in the drawing) Cartridge with a bursting film, which is applied when the extinguisher is loaded Propellant burst from the propellant reservoir 18.
  • the propellant guide tube can also be used in Connection with premixed extinguishing agents can be used.
  • no separate container is required for an extinguishing agent additive. This is already mixed into the extinguishing agent.
  • premixed extinguishing agent has been the use of a Propellant pipe proved to be advantageous. This can be due to this be attributed to separations in the premixed solutions done by the targeted vortexing of the liquid will.
  • Through targeted geometric execution of the Propellant pipe and the outlet openings attached to it can the strength of the swirling of the extinguishing agent and thus the Mixing can be set. Depending on the requirement, this is possible Propellant pipe only a few millimeters into the liquid or sufficient almost to the bottom of the extinguisher.
  • Fig. 2 schematically shown pressure curve over time.
  • the pressure determines essential properties of the extinguishing jet, e.g. B. the Drop size, the drop size distribution, the foaming, above all but the throw range.
  • the disproportionate in the entire area of the curve Decrease has the consequence that in the event of fire, which anyway represents a stressful situation, a misconduct in the deletion action can occur.
  • the disproportionately decreasing throw range leads to the fact that, especially inexperienced fire fighting personnel, the orientation of the Do not adjust the extinguishing jet optimally to match the throw range can.
  • the amount of propellant be greater than that free volume in the fire extinguisher calculated working pressure and density Amount of propellant is increased.
  • blowing agent of 70-150 g are preferably used.
  • blowing agent in an excess the foaming rate increases (ratio of the foaming agent to produced foam) by a factor of 4-5. This usually means a significant improvement in extinguishing performance.
  • Another advantage of the preferred embodiment is that in the bubbles contained in the foam have an increased proportion of blowing agent is included so that reinforced instead of combustion support Breathing air in the room a nitrogen gas mixture is transported into the fire. This also supports the deletion process.
  • the pressure loss over time (schematically shown in Fig. 3) has a linear over a wide range Course on. This will ensure the successful handling of the extinguisher significantly supported.
  • the deletion process is evened out in achieved even better solution when in the propellant reservoir a riser pipe is arranged through which the extinguishing agent a blowing agent present in predominantly liquid form brought.

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)
  • Fire-Extinguishing Compositions (AREA)
  • Fireproofing Substances (AREA)

Claims (6)

  1. Extincteur (11) à agent d'extinction liquide, constitué d'un boítier, d'une tête d'extincteur (12) et d'un réservoir (15) d'agent de propulsion, un tube de guidage (16) d'agent de propulsion s'enfonçant dans la charge d'argent d'extinction (19), au moins une ouverture de sortie étant enfoncée dans la charge d'agent d'extinction (19) et une ou plusieurs ouvertures de sortie étant disposées sur le côté du tube (16) de guidage d'agent de propulsion, caractérisé en ce que le tube (16) de guidage d'agent de propulsion présente à son extrémité de sortie une tête de gicleur (17) dotée d'un grand nombre d'ouvertures de petit diamètre.
  2. Extincteur à agent d'extinction liquide avec réservoir d'agent de propulsion selon la revendication 1, caractérisé en ce que la quantité d'agent de propulsion est supérieure à la quantité d'agent de propulsion calculée sur base du volume libre dans l'extincteur, d'une pression de travail de 15 bars et de la densité de l'agent de propulsion.
  3. Extincteur à agent d'extinction liquide selon la revendication 2, avec réservoir d'agent de propulsion comportant au moins une ouverture de sortie d'agent de propulsion tournée vers la charge d'agent d'extinction, caractérisé en ce que lorsqu'il pénètre dans le liquide d'extinction, l'agent de propulsion en provenance du réservoir est essentiellement liquide.
  4. Extincteur selon l'une des revendications 2 ou 3, caractérisé en ce qu'un tube montant est disposé dans le réservoir de l'extincteur.
  5. Extincteur selon l'une des revendications 1 à 4, caractérisé en ce que le réservoir (15) d'agent de propulsion et le tube (16) de guidage de l'agent d'extinction sont fixés sur la tête (12) de l'extincteur.
  6. Extincteur selon l'une des revendications 2 à 5, caractérisé en ce que l'on utilise un agent de propulsion présentant une bonne solubilité dans le liquide d'extinction, et en particulier du CO2.
EP95107190A 1994-05-11 1995-05-11 Extincteur d'incendie Expired - Lifetime EP0686410B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE9407753U DE9407753U1 (de) 1994-05-11 1994-05-11 Feuerlöscher mit Schnelldurchmischung
DE9407753U 1994-05-11
DE29505581U DE29505581U1 (de) 1995-04-07 1995-04-07 Feuerlöscher mit erhöhter Treibmittelmenge
DE9505581U 1995-04-07

Publications (3)

Publication Number Publication Date
EP0686410A2 EP0686410A2 (fr) 1995-12-13
EP0686410A3 EP0686410A3 (fr) 1996-06-05
EP0686410B1 true EP0686410B1 (fr) 1998-06-24

Family

ID=25962058

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95107190A Expired - Lifetime EP0686410B1 (fr) 1994-05-11 1995-05-11 Extincteur d'incendie

Country Status (5)

Country Link
EP (1) EP0686410B1 (fr)
AT (1) ATE167635T1 (fr)
DE (1) DE59502638D1 (fr)
DK (1) DK0686410T3 (fr)
ES (1) ES2118473T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1008969C2 (nl) * 1998-04-23 1999-10-26 H T Research B V Werkwijze voor het blussen van een brand.
FR2779656B1 (fr) * 1998-06-15 2000-08-11 Extincteurs Harden Tube detasseur pour extincteur a gaz auxiliaire propulseur de poudre extinctrice, tete d'extincteur associee audit tube et extincteur comprenant une telle tete

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR969186A (fr) * 1948-07-13 1950-12-15 Centrale Incendie Extincteur d'incendie, notamment pour films cinématographiques
GB911232A (en) * 1958-06-07 1962-11-21 John Kerr & Company Manchester Improvements in or relating to fire extinguishers
GB1478602A (en) * 1975-11-10 1977-07-06 Rampart Eng Co Ltd Powder type portable fire extinguishers
DE3006945A1 (de) * 1980-02-25 1981-09-03 A. Werner GmbH & Co Spezialfabrik für Feuerlöschtechnik, 5414 Vallendar Feuerloescher
FR2662608B1 (fr) * 1990-06-05 1992-09-11 Rot Cartouche frangible pour additifs d'extinction dans des extincteurs a eau mise sous pression au moment de l'emploi par un gaz comprime.

Also Published As

Publication number Publication date
EP0686410A2 (fr) 1995-12-13
ATE167635T1 (de) 1998-07-15
EP0686410A3 (fr) 1996-06-05
ES2118473T3 (es) 1998-09-16
DE59502638D1 (de) 1998-07-30
DK0686410T3 (da) 1999-02-01

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