EP0686410A2 - Extincteur d'incendie - Google Patents

Extincteur d'incendie Download PDF

Info

Publication number: EP0686410A2
Authority: EP; European Patent Office
Prior art keywords: propellant; extinguishing; extinguisher; liquid; fire extinguisher
Prior art date: 1994-05-11
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

EP95107190A

Other languages

German (de)

English (en)

Other versions

EP0686410A3 (fr

EP0686410B1 (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.)

1994-05-11

Filing date

1995-05-11

Publication date

1995-12-13

1994-05-11 Priority claimed from DE9407753U external-priority patent/DE9407753U1/de

1995-04-07 Priority claimed from DE29505581U external-priority patent/DE29505581U1/de

1995-05-11 Application filed by Minimax GmbH and Co KG, Preussag AG Minimax filed Critical Minimax GmbH and Co KG

1995-12-13 Publication of EP0686410A2 publication Critical patent/EP0686410A2/fr

1996-06-05 Publication of EP0686410A3 publication Critical patent/EP0686410A3/fr

1998-06-24 Application granted granted Critical

1998-06-24 Publication of EP0686410B1 publication Critical patent/EP0686410B1/fr

2015-05-11 Anticipated expiration legal-status Critical

Status 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 with rapid mixing.
extinguishing agents When using liquid extinguishing agents, it is often necessary to add extinguishing agents. It is important that the extinguishing agent and extinguishing agent additives are mixed well at the start of the extinguishing and throughout the entire extinguishing.
One possibility for this is to put the extinguishing agent additive in a special container on the extinguisher and to guide propellant from a propellant reservoir through this container into the extinguisher.
a container is arranged in the extinguisher itself, which is provided with a film, so that when the extinguisher is acted upon by the propellant, the container is destroyed and the extinguishing agent additive is introduced into the extinguishing agent.
a propellant guide tube on the extinguisher which protrudes into the extinguishing agent filling, at least one outlet opening being immersed in the extinguishing agent filling.
the propellant pipe is attached to the extinguisher head.
all essential components namely propellant reservoir and extinguishing agent guide tube, are located on the extinguisher head.
the container for the extinguishing agent additive arranged inside the extinguisher can be provided floating on the surface of the liquid extinguishing agent or can also be attached to the extinguishing agent head.
one or more outlet openings are arranged laterally with respect to the axis of the guide tube on the propellant guide tube. This allows the mixing to be further optimized.
the fire extinguisher according to the invention has a housing 1 on which an extinguisher head 2 is arranged, for example by sealing screwing.
the propellant reservoir 3 is attached to the extinguisher head 2.
the container for dispensing extinguishing agent additives 5 floats on the surface of the extinguishing agent filling 7.
the propellant guide tube 4 with lateral outlet openings 6 is arranged on the extinguisher head 2.
the propellant guide tube can also be used in conjunction with premixed extinguishing agents.
no separate container for an extinguishing agent additive is required. This is already mixed into the extinguishing agent.
the use of a propellant guide tube has also proven to be advantageous for these premixed extinguishing agents. This can be due to this to be attributed to the fact that separations take place in the premixed solutions, which are eliminated by the targeted whirling of the liquid.
the strength of the swirling of the extinguishing agent and thus the mixing can be adjusted by a targeted geometric design of the propellant guide tube and the outlet openings attached to it.
the propellant guide tube is only a few millimeters immersed in the liquid or extends almost to the bottom of the extinguisher.
the blowing agent also serves to mix the regularly required extinguishing agent additives (e.g. tensides) with the extinguishing agent.
Fire extinguishers that have been on the market up to now have the pressure curve, shown schematically in FIG. 2, over time when extinguished.
the pressure determines essential properties of the extinguishing jet, e.g. B. the drop size, the drop size distribution, the foaming, but above all the throwing distance.
the disproportionate decrease in the entire area of the curve has the consequence that in the event of a fire, which in any case represents a stress situation, erroneous behavior can occur during the extinguishing action. It is precisely the disproportionately decreasing throw range that, in particular inexperienced extinguishing personnel, cannot optimally readjust the alignment of the extinguishing jet to match the throw range.
the amount of propellant be increased compared to the amount of propellant calculated from the free volume in the extinguisher working pressure and density.
safety surcharges for this calculated amount of propellant, e.g. B. in the The order of 1 to 5%.
these safety supplements still belong to the arithmetically determined amount of propellant.
the aim of the invention is to offer an excess amount of propellant in addition to the safety supplements and to distribute this propellant in the extinguishing liquid in connection with the propellant guide tube protruding into the extinguishing liquid.
the foaming rate (ratio of the foaming agent to the foam produced) increases by a factor of 4-5. This normally means a significant improvement in the extinguishing performance.
Another advantage of the embodiment according to the invention is that the bubbles contained in the foam contain an increased proportion of propellant, so that a nitrogen gas mixture is increasingly transported into the fire in the room instead of combustion-supporting breathing air. This also supports the deletion process.
the pressure loss over time (shown schematically in FIG. 3) has a linear course over a wide range. This will ensure the successful handling of the extinguisher significantly supported.
the extinguishing process is evened out in an even better solution if a propellant guide tube is arranged in the propellant reservoir, through which the extinguishing agent is brought into contact with a propellant which is predominantly in liquid form.
a propellant guide tube does not necessarily have to protrude into the extinguishing liquid in this embodiment. Rather, the uniformity of the extinguishing conditions can be supported by generating a free jet for liquid propellant.
At least one outlet opening of small diameter is preferably provided at the outlet end of the propellant guide tube.
a small diameter is meant here that the diameter of the outlet opening is significantly smaller than the diameter of the propellant guide tube.
a plurality of outlet openings of small diameter are preferably arranged, in particular equidistantly on the circumference of the propellant guide tube.
the outlet end of the propellant guide tube with the outlet openings of small diameter can preferably be connected as an independent part to the propellant guide tube. This facilitates assembly and adaptation to different extinguishing agents.
CO2 is preferably used as a blowing agent in the usual way. However, this does not mean that the invention is fundamentally dependent on the use of CO2. Instead of CO2, other blowing agents can be used.
the fire extinguisher 11 has an extinguisher head 12 which is provided with an operating handle 13 and a hose 14 for dispensing the extinguishing agent. Inside the extinguisher 11 is on the Extinguishing head 12 preferably arranged the propellant reservoir 15. The reservoir can also be attached to the outside of the extinguisher 11.
the propellant guide tube 16 is preferably attached to the extinguisher head 12 and has a nozzle head 17 with a plurality of openings of small diameter at its outlet end.
a riser pipe shown in dashed lines in the drawing) which extends into the lower region 18 of the storage container.
the liquid in the riser pipe is passed through the extinguisher head 12 into the propellant guide tube and enters the extinguishing liquid 19 at the nozzle head 17.
additives to the extinguishing liquid are preferably provided by a cartridge (not shown in the drawing) floating in the extinguishing liquid with a bursting film which bursts from the propellant reservoir 18 when the extinguisher is charged with propellant.
the advantages of the invention also apply equally to pre-mixed extinguishing agents. Compared to the amount of blowing agent of 50 g given above by way of example, blowing agent amounts of 70-150 g would preferably be used in this exemplary embodiment.

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

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 true EP0686410A2 (fr)	1995-12-13
EP0686410A3 EP0686410A3 (fr)	1996-06-05
EP0686410B1 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)

Cited By (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.
FR2779656A1 (fr) *	1998-06-15	1999-12-17	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.

1995
- 1995-05-11 DE DE59502638T patent/DE59502638D1/de not_active Expired - Lifetime
- 1995-05-11 AT AT95107190T patent/ATE167635T1/de active
- 1995-05-11 ES ES95107190T patent/ES2118473T3/es not_active Expired - Lifetime
- 1995-05-11 DK DK95107190T patent/DK0686410T3/da active
- 1995-05-11 EP EP95107190A patent/EP0686410B1/fr not_active Expired - Lifetime

Cited By (3)

* 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.
FR2779656A1 (fr) *	1998-06-15	1999-12-17	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
EP0965364A1 (fr) *	1998-06-15	1999-12-22	Extincteurs Harden	Tube pour extincteur

Also Published As

Publication number	Publication date
ES2118473T3 (es)	1998-09-16
EP0686410A3 (fr)	1996-06-05
ATE167635T1 (de)	1998-07-15
DK0686410T3 (da)	1999-02-01
EP0686410B1 (fr)	1998-06-24
DE59502638D1 (de)	1998-07-30

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Publication	Publication Date	Title
DE69709057T2 (de)	2002-08-01	Feuerbekämpfungseinrichtung
DE69210603T2 (de)	1996-09-12	Ausrüstung zur brandbekämpfung
DE69319915T2 (de)	1999-03-18	Düse mit einer die flüssigkeit zum verwirbeln bringenden schraubenfeder
DE69533679T2 (de)	2005-10-20	Gas- und Flüssigkeitsnebel abgebende Feuerbekämpfungsvorrichtung
DE3517284C2 (de)	1996-06-20	Verfahren und Vorrichtung zum Herstellen und zur Abgabe von mit einem Zusatzmittel vermischten Löschmitteln
DE29522033U1 (de)	1999-12-02	Vorrichtung zum Impuls-Medien-Austrag
DE102017117412A1 (de)	2019-02-07	Verfahren und Vorrichtung zur Herstellung von Löschschaum mit löschfähigem Gas
DE2524146A1 (de)	1975-12-18	Vorrichtung zum beimischen eines durch eine fluessigkeit abtragbaren, festen stoffes zu der fluessigkeit
DE60013911T2 (de)	2005-09-29	Düsensprüher und feuerlöscher
EP3337576B1 (fr)	2019-11-20	Extincteur
DE202017102091U1 (de)	2017-05-05	Brandlöschlanze
DE69900183T2 (de)	2001-10-31	Anriebsquelle zur zuführung eines löschmittels zu einem sprühknopf zum löschen eines feuers
EP0671216A2 (fr)	1995-09-13	Buse de pulvérisation pour l'obtention d'un double cône de pulvérisation
DE2733601C3 (de)	1980-11-06	Chemikalsauerstoffgerät mit Kreislaufatmung
EP0686410A2 (fr)	1995-12-13	Extincteur d'incendie
DE2600295C3 (de)	1981-08-13	Flammspritzbrenner zum Pulverflammspritzen
DE29505581U1 (de)	1995-06-29	Feuerlöscher mit erhöhter Treibmittelmenge
DE3933582A1 (de)	1991-04-18	Werferrohr
DE631477C (de)	1936-06-20	Luftschaumerzeuger fuer Feuerloeschzwecke
DE675800C (de)	1939-05-17	Vorrichtung zur Erzeugung von physikalischem Schaum, insbesondere fuer Feuerloeschzwecke
DE9407753U1 (de)	1994-07-14	Feuerlöscher mit Schnelldurchmischung
DE2822380A1 (de)	1979-11-29	Feuerloescher
EP3991805B1 (fr)	2024-01-10	Dispositif d'alimentation en mousse
EP1293230A1 (fr)	2003-03-19	Procédé et installation d'extinction d'incendie
DD141626A1 (de)	1980-05-14	Drallduese zur erzeugung von spruehnebeln