EP2588204B1 - Water/foam fire extinguisher with adjustable foam consistency - Google Patents

Water/foam fire extinguisher with adjustable foam consistency Download PDF

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Publication number
EP2588204B1
EP2588204B1 EP11776326.8A EP11776326A EP2588204B1 EP 2588204 B1 EP2588204 B1 EP 2588204B1 EP 11776326 A EP11776326 A EP 11776326A EP 2588204 B1 EP2588204 B1 EP 2588204B1
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EP
European Patent Office
Prior art keywords
foam
extinguishing
extinguishing medium
medium
container
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EP11776326.8A
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German (de)
French (fr)
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EP2588204A2 (en
Inventor
Reinhard Effenberger
Claus Casimir
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HNE Technologie AG
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HNE Technologie AG
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Priority to PL11776326T priority Critical patent/PL2588204T3/en
Priority to SI201131639T priority patent/SI2588204T1/en
Publication of EP2588204A2 publication Critical patent/EP2588204A2/en
Application granted granted Critical
Publication of EP2588204B1 publication Critical patent/EP2588204B1/en
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C5/00—Making of fire-extinguishing materials immediately before use
    • A62C5/02—Making of fire-extinguishing materials immediately before use of foam
    • 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
    • A62C13/70—Portable extinguishers which are permanently pressurised or pressurised immediately before use with extinguishing material and pressure gas being stored in separate containers characterised by means for releasing the pressure gas
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/003—Extinguishers with spraying and projection of extinguishing agents by pressurised gas
    • 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

  • Portable and rollable fire extinguishers with liquid extinguishing agent namely water or foam
  • liquid extinguishing agent namely water or foam
  • foam extinguishers working fire extinguishers that produce compressed gas consolidated extinguishing foam are also known.
  • the known foam extinguisher is not universally applicable and, for example, only very limited suitable for extinguishing fires in live systems.
  • the invention is therefore an object of the invention to provide a portable or mobile foam extinguisher, which is at least improved to the effect that the foam consistency is adjustable according to the particular needs.
  • either the Schaumverfestologist can optionally be switched on or off in operation and preferably continuously adjusted between a minimum value and a maximum value.
  • the consistency of the foam can thus be optimally adjusted according to the needs.
  • the compressed gas admixing valve for producing the foam consolidation is attached to the extinguishing agent container so that only one hose from the extinguishing agent container, namely from the admixing valve attached thereto, extends to the extinguishing pistol.
  • a switchable nozzle assembly to work either with a bundled compact droplet jet or with a more or less finely atomized broader spray.
  • a pivoting mechanism may be provided for selectively using a foam tube or a spray jet tube.
  • the foam tube may also be provided at its upstream end with air inlet openings whose opening cross-section is infinitely adjustable by an adjusting sleeve between a fully closed and a fully open position.
  • a separate fillable foam container is provided in the fire extinguishing device according to the invention, which is separated from the water tank.
  • This can be grown outside at a suitable location to the water tank or housed in the interior.
  • Both the interior of the water tank and the interior of the foam container can be pressurized with compressed gas from a compressed gas cylinder to expel the water or the foaming agent from the respective container.
  • the outlet lines of the water tank and the foaming agent container lead into a mixing valve, which contains a manually adjustable valve element, by means of which the admixture of the foaming agent is switched into the water.
  • the admixture of foam in the water is gradual or infinitely adjustable by a correspondingly adjustable valve element is provided.
  • a so-developed extinguishing device can then be operated either as a pure water extinguisher or as a foam extinguisher.
  • the compressed gas for Schaumverfest Trent be switched on.
  • the introduction of the compressed gas can then take place either in the foaming agent prior to its introduction into the water outlet from the water tank, so that with the pressurized gas foaming agent is introduced into the water in the water outlet, or foaming agent and pressurized gas can at about the same point directly into the Water outlet be initiated.
  • the extinguishing device according to the invention offers decisive advantages.
  • the filled extinguisher can be used according to the conditions found by simply switching either as a pure water extinguisher or as a foam extinguisher, If the device is used as a foam extinguisher, by adjusting the Schaumsch- and compressed gas admixture to the water coming from the water tank the consistency of the foam can be adjusted in the entire area between heavy foam and compressed air foam. In addition, since the admixing rate of air can also be variably adjusted on the foam tube, the flake size and moisture of the foam can be adjusted within a wide range, and the expansion ratio is variably adjustable.
  • the extinguisher can be designed as often in use and quickly refilled by the user refillable and thus further usable device by the water tank provided with a separate water filling opening with a tool-free detachable cap and the gas cylinder with a likewise by hand and without Tool operable quick coupling is connected to the container assembly.
  • Fig. 1 shows a perspective view of the extinguisher in total with an extinguishing agent container 1, a coupled compressed gas cylinder 2 and a fire extinguisher 3, which is inserted into a holder attached to the extinguishing agent container 1 and is connected via an extinguishing agent hose 4 with the extinguishing agent container.
  • Fig. 2 shows the extinguisher after Fig.1 in an exploded view, to make otherwise hidden components visible.
  • the extinguishing agent container 1 has a top wall 11 and an upwardly projecting from this extinguishing agent filler neck 12, can be filled by the water and foaming agent in the extinguishing agent container 1.
  • An attachable by means of a handwheel without tools and detachable cap 13 with a pressure relief valve 14 serves to close the filler neck 12th
  • the compressed gas cylinder 2 with an openable by an overhead handwheel 21 outlet valve can be coupled via an operable with a handwheel 22, designed as a screw coupling quick coupling 23 to a pressure reducing valve 5, which is mounted on the top wall 11 of the extinguishing agent container 1 and above with a pressure gauge 51st is provided.
  • a mixing valve block 6 is mounted on the top wall 11 of the extinguishing agent container 1. This contains a mixing valve for selectively mixing compressed gas into the extinguishing agent emerging from the extinguishing agent tank 1.
  • the formed in the interior of the valve block 6, not visible in detail in the drawing valve is manually actuated by means of an actuator 61.
  • a extinguishing agent outlet pipe 18 leads into the valve block 6.
  • the extinguishing agent hose 4 which leads to the extinguishing pistol 3, can be coupled to the upper connecting piece 62 of the valve block in the drawing.
  • a compressed gas line into the interior of the extinguishing agent container 1, through its top wall 11 therethrough to pressurize the extinguishing agent in extinguishing agent container 1 and to cause its extrusion through the extinguishing agent outlet pipe 18.
  • a compressed gas line in the valve block 6 leads from the pressure reducing valve 5, a compressed gas line in the valve block 6 to the accommodated therein mixing valve, which is switchable by means of the actuator 61 between a closed and an open position.
  • the valve is designed so that the opening cross section of the compressed gas line within the valve block is continuously adjustable between the closed position and the fully open position. The adjustment can also be done in stages. Thereby, the foam consolidation can be set as desired, namely switched on, switched off, and preferably regulated in their extent.
  • Fig. 3 shows in exploded view the extinguishing pistol 3 (without connected extinguishing agent hose 4).
  • This consists of a pistol part 31 with actuating handle 32, a coupling piece 33 which can be attached to the connecting piece 32, a foam tube 34 and a spray jet pipe 35.
  • the foam tube 34 and the spray jet tube 35 are both fixedly mounted on the coupling piece 33.
  • the coupling piece 33 has a pivoting part 36 which is detectable or detachable by means of a handwheel 37, and which allows a change of the respective effective tube, namely either the foam tube 34 or the spray jet tube 35 to the extinguishing gun 3.
  • the foam tube has at its rear end a sleeve 38 which is provided at its periphery with a plurality of openings 39.
  • the rear end of the foam tube 34 has the openings 39 of the sleeve 38 corresponding openings.
  • the sleeve 38 is rotatable about a certain angle of rotation, which, as can be seen from the drawing, by a circumferentially extending slot 38a and a stop screw 38b, to the openings 39 of the sleeve 38 with the corresponding openings of the rear end of the jet pipe 34th between a position with full coverage and a position without overlap to move.
  • the sleeve 38 By turning the sleeve 38 so the openings at the rear end of the foam tube 34 can be continuously closed or completely or partially opened to allow access of ambient air in the emerging through the foam tube foam and thereby further modify the foam consistency.
  • the rotatable sleeve and an axially displaceable sleeve could be provided.
  • Fig. 4 shows only a schematic representation of a development of the invention to the effect that the extinguishing agent container 1, a separate water tank 1 a and a separate foam agent container 1 b is provided.
  • the foaming agent tank can be substantially smaller than the water tank 1a.
  • the foaming agent container 1 b is formed so large that it can accommodate a multiple of the amount of foaming agent, which is needed for a complete filling of the water tank 1 a. Then, in use, the extinguisher, when the water is consumed, can be refilled with water and continue to operate as a foam extinguisher when the foaming agent supply reaches for several water fillings.
  • the foaming agent container can either be arranged inside the water container, but of course be attached with its own filling opening, or at any convenient point outside the water tank, either laterally, or above or below the water tank then.
  • the valve block 6 then contains both a manually operable mixing valve for introducing pressurized gas into the outlet line leading from the water tank 1 a to the valve block 6 18, as well as a manually operable admixing valve 6 b for mixing foam in the water in the outlet 18.
  • the arrangement may be such that from the safety valve 5, a compressed gas line either directly into the Schaumffen inherenter 1b leads and there the foaming agent is also placed under Auspresstik as the water in the water tank la, or the mixing valve 6b for the foaming agent can with a (not shown) Compressed gas valve be combined, which simultaneously activates a pressurized gas line leading from the safety valve 5 via the valve block 6 to the foaming agent container 1b when adding Schaumffeneinspeisung in the extinguishing water, so that the foaming agent container is set only in the foam extinguishing operation under pressure.
  • the admixing valve 6b for admixing foaming agent may be formed so that it is either only movable between an on and an off position, but preferably so that by stage or stepless adjustment also a regulation of the foam composition, ie the Schaumffenanteils in the water can be produced.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Nozzles (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Description

Trag- und rollbare Feuerlöschgeräte mit flüssigem Löschmittel, nämlich Wasser oder Schaum, sind bekannt. Bekannt sind auch als Schaumlöscher arbeitende Feuerlöschgeräte, die druckgasverfestigten Löschschaum erzeugen.Portable and rollable fire extinguishers with liquid extinguishing agent, namely water or foam, are known. Are also known as foam extinguishers working fire extinguishers that produce compressed gas consolidated extinguishing foam.

Aus der EP 1 197 245 A1 der Anmelderin ist es bekannt, bei einem tragbaren oder rollbaren, mit druckgasverefstigtem Schaum arbeitenden Feuerlöschgerät eine verbesserte Schaumverfestigung dadurch zu erreichen, dass zwischen dem Löschmittelschlauch und der Löschpistole eine Mischarmatur eingebaut ist, an welche eine Druckgasleitung angeschlossen ist, die mit der Druckgasflasche über eine Druckgasarmatur verbunden ist, derart, dass bei Druckbeaufschlagung des Löschmittelbehälters aus der Druckgasflasche gleichzeitig auch Druckgas über die Mischarmatur in die Löschmittelleitung eingeleitet wird. Ansonsten besteht das bekannte Schaumlöschgerät in üblicher Weise aus einem druckfesten Löschmittelbehälter zur Aufnahme von Wasser unter Zusatz eines Schaummittels, sowie der schon erwähnten, am Löschmittelbehälter angekuppelten Druckgasflasche.From the EP 1 197 245 A1 In the case of a portable or rollable fire extinguisher working with pressurized gas-softened foam, it is known to the applicant that a mixing valve is installed between the extinguishing agent hose and the extinguishing pistol, to which a pressurized gas line is connected, which is connected to the pressurized gas cylinder via a pressurized gas fitting is connected, such that upon pressurization of the extinguishing agent container from the compressed gas cylinder at the same time also pressurized gas is introduced via the mixing valve in the extinguishing medium line. Otherwise, the known foam extinguisher in a conventional manner from a pressure-resistant extinguishing agent container for receiving water with the addition of a foaming agent, as well as the already mentioned, coupled to the extinguishing agent tank compressed gas cylinder.

Bei dem eben erwähnten Schaumlöschgerät sowie bei sonstigen herkömmlichen Löschgeräten mit flüssigem Löschmittel, die mit Wasser oder Schaum betrieben werden können, ist die Ausbringungsweise des Löschmittels und damit die Wirkungsweise des Löschgeräts dadurch vorgegeben, dass Wasser und Löschmittel sich gemeinsam im Löschmittelbehälter befinden.In the foam extinguisher just mentioned and other conventional fire extinguishers with liquid extinguishing agent that can be operated with water or foam, the Auszustungsweise the extinguishing agent and thus the operation of the extinguisher is given by the fact that water and extinguishing agent are together in the extinguishing agent.

Die Einsatzmöglichkeiten dieses bekannten Löschgeräts ist dadurch beschränkt, dass die Konsistenz des Löschmittelschaums fest vorgeben und unveränderbar ist. Die Löschpistole arbeitet mit einer festen Düse, wodurch deren Einstellung vorgegeben ist.The possible applications of this known extinguishing device is limited by the fact that the consistency of the extinguishing agent foam predetermine and is unchangeable. The extinguishing pistol works with a fixed nozzle, whereby its setting is predetermined.

Daher ist das bekannte Schaumlöschgerät nicht universell einsetzbar und beispielsweise zum Löschen an Bränden in spannungsführenden Anlagen nur sehr eingeschränkt geeignet.Therefore, the known foam extinguisher is not universally applicable and, for example, only very limited suitable for extinguishing fires in live systems.

Der Erfindung liegt daher die Aufgabe zugrunde, ein trag- oder fahrbares Schaumlöschgerät zu schaffen, das mindestens dahingehend verbessert ist, dass die Schaumkonsistenz nach den jeweiligen Bedürfnissen einstellbar ist.The invention is therefore an object of the invention to provide a portable or mobile foam extinguisher, which is at least improved to the effect that the foam consistency is adjustable according to the particular needs.

Ein anderes trag- und rollbares Feuerlöschgerät ist aus dem Dokument US 6 112 819 A bekannt.Another portable and rollable fire extinguisher is from the document US 6,112,819 A known.

Diese Aufgabe wird gemäß der Erfindung durch die im Anspruch 1 angegebene Anordnung gelöst. Weitere vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche.This object is achieved according to the invention by the arrangement specified in claim 1. Further advantageous embodiments and modifications of the invention are the subject of the dependent claims.

Die in den Unteransprüchen definierten Weiterbildungen der Erfindung lösen zusätzliche Aufgaben und bringen zusätzliche Vorteile hinsichtlich variabler Einstellmöglichkeiten vor oder während des Betriebs, wodurch eine besonders flexible Anpassung an die jeweiligen Gegebenheiten des zu löschenden Brandherds geschaffen werden und damit eine effizientere und flexiblere Brandbekämpfung ermöglicht wird.The developments of the invention defined in the dependent claims solve additional tasks and bring additional advantages in terms of variable adjustment before or during operation, creating a particularly flexible adaptation to the particular circumstances of the fire to be deleted are created and thus more efficient and flexible fire fighting is possible.

Bei dem nach Anspruch 1 ausgebildeten Löschgerät kann im Betrieb wahlweise die Schaumverfestigung eingeschaltet oder ausgeschaltet werden und vorzugsweise stufenlos zwischen einem Minimalwert und einem Maximalwert eingestellt werden. Die Konsistenz des Schaums kann damit je nach den Bedürfnissen optimal eingestellt werden. Wird kein Druckgas in den zur Düse der Löschmittelpistole strömenden Schaum eingeleitet, ist der Schaum naß und kompakt, und bei Einleitung von Druckgas zur Schaumverfestigung ist der Schaum je nach der Stärke der Druckgaseinleitung mehr oder weniger verfestigt, trockener, leichter und stabiler.In the erase device formed according to claim 1 either the Schaumverfestigung can optionally be switched on or off in operation and preferably continuously adjusted between a minimum value and a maximum value. The consistency of the foam can thus be optimally adjusted according to the needs. When no pressurized gas is introduced into the foam flowing to the nozzle of the extinguishing gun, the foam is wet and compact, and upon introduction of pressurized gas for foam consolidation, the foam is more or less solidified, drier, lighter, and more stable, depending on the strength of the pressurized gas introduction.

Erfindungsgemäß ist das Druckgasbeimischventil zum Erzeugen der Schaumverfestigung am Löschmittelbehälter angebaut, so dass nur noch ein Schlauch vom Löschmittelbehälter, nämlich von dem daran angebauten Zumischventil, zur Löschpistole verläuft.According to the invention, the compressed gas admixing valve for producing the foam consolidation is attached to the extinguishing agent container so that only one hose from the extinguishing agent container, namely from the admixing valve attached thereto, extends to the extinguishing pistol.

An der Löschpistole kann vorteilhafterweise ein umschaltbare Düsenanordnung vorgesehen sein, um wahlweise mit einem gebündelten kompakten Tröpfchenstrahl oder mit einem mehr oder wenig fein zerstäubten breiteren Sprühstrahl arbeiten zu können. Insbesondere kann dazu ein Schwenkmechanismus vorgesehen sein, um wahlweise ein Schaumrohr oder ein Sprühstrahlrohr zum Einsatz zu bringen. Das Schaumrohr kann darüber hinaus an seinem stromaufwärtigen Ende mit Lufteinlassöffnungen versehen sein, deren Öffnungsquerschnitt durch eine Verstellhülse zwischen einer vollständig geschlossenen und einer vollständig geöffneten Stellung stufenlos regulierbar ist.At the extinguishing gun can advantageously be provided a switchable nozzle assembly to work either with a bundled compact droplet jet or with a more or less finely atomized broader spray. In particular, a pivoting mechanism may be provided for selectively using a foam tube or a spray jet tube. The foam tube may also be provided at its upstream end with air inlet openings whose opening cross-section is infinitely adjustable by an adjusting sleeve between a fully closed and a fully open position.

Bei einer Weiterleitung ist bei dem erfindungsgemäßen Feuerlöschgerät ein separater befüllbarer Schaummittelbehälter vorgesehen, der vom Wasserbehälter getrennt ist. Dieser kann außen an einer geeigneten Stelle an den Wasserbehälter angebaut oder auch in dessen Innerem untergebracht sein. Sowohl das Innere des Wasserbehälters als auch das Innere des Schaummittelbehälters sind mit Druckgas aus einer Druckgasflasche druckbeaufschlagbar, um das Wasser bzw. das Schaummittel aus dem jeweiligen Behälter auszutreiben. Die Auslassleitungen des Wasserbehälters und des Schaummittelbehälters führen in ein Mischventil, das ein manuell verstellbares Ventilelement enthält, mittels dessen die Beimischung vom Schaummittel in das Wasser zuschaltbar ist. Die Beimischung von Schaummittel in das Wasser ist stufig oder stufenlos regulierbar, indem ein entsprechend verstellbares Ventilelement vorgesehen ist.When forwarding a separate fillable foam container is provided in the fire extinguishing device according to the invention, which is separated from the water tank. This can be grown outside at a suitable location to the water tank or housed in the interior. Both the interior of the water tank and the interior of the foam container can be pressurized with compressed gas from a compressed gas cylinder to expel the water or the foaming agent from the respective container. The outlet lines of the water tank and the foaming agent container lead into a mixing valve, which contains a manually adjustable valve element, by means of which the admixture of the foaming agent is switched into the water. The admixture of foam in the water is gradual or infinitely adjustable by a correspondingly adjustable valve element is provided.

Ein so weitergebildetes Löschgerät nach der Erfindung kann dann wahlweise als reiner Wasserlöscher oder als Schaumlöscher betrieben werden. Beim Betrieb als Schaumlöscher kann dann wahlweise auch noch das Druckgas zur Schaumverfestigung zugeschaltet werden. Die Einleitung des Druckgases kann dann entweder in das Schaummittel vor dessen Einleitung in die Wasserauslassleitung aus dem Wasserbehälter erfolgen, so dass mit dem Druckgas versetztes Schaummittel in das Wasser in der Wasserauslassleitung eingeleitet wird, oder Schaummittel und Druckgas können etwa an der gleichen Stelle unmittelbar in die Wasserauslassleitung eingeleitet werden.A so-developed extinguishing device according to the invention can then be operated either as a pure water extinguisher or as a foam extinguisher. When operating as a foam extinguisher then optionally also the compressed gas for Schaumverfestigung be switched on. The introduction of the compressed gas can then take place either in the foaming agent prior to its introduction into the water outlet from the water tank, so that with the pressurized gas foaming agent is introduced into the water in the water outlet, or foaming agent and pressurized gas can at about the same point directly into the Water outlet be initiated.

Damit bietet das erfindungsgemäße Löschgerät entscheidende Vorteile.Thus, the extinguishing device according to the invention offers decisive advantages.

Wenn Wasser und Schaummittel in getrennten Behältern enthalten sind, kann das befüllte Löschgerät am Einsatzort entsprechend den vorgefundenen Bedingungen durch einfaches Umschalten wahlweise als reines Wasserlöschgerät oder als Schaumlöschgerät benutzt werden, Wird das Gerät als Schaumlöscher eingesetzt, kann durch Verstellen der Schaummittel- und Druckgasbeimischung zu dem aus dem Wasserbehälter kommenden Wasser die Konsistenz des Schaumes eingestellt werden im gesamten Bereich zwischen Schwerschaum und Druckluftschaum. Da außerdem am Schaumrohr auch noch die Zumischrate von Luft variabel einstellbar ist, lassen sich Flockengröße und Feuchtigkeit des Schaums in einem weiten Bereich einstellen, und die Verschäumungszahl ist variabel einstellbar.If water and foaming agent are contained in separate containers, the filled extinguisher can be used according to the conditions found by simply switching either as a pure water extinguisher or as a foam extinguisher, If the device is used as a foam extinguisher, by adjusting the Schaummittel- and compressed gas admixture to the water coming from the water tank the consistency of the foam can be adjusted in the entire area between heavy foam and compressed air foam. In addition, since the admixing rate of air can also be variably adjusted on the foam tube, the flake size and moisture of the foam can be adjusted within a wide range, and the expansion ratio is variably adjustable.

Zweckmäßigerweise kann das Löschgerät auch als im Einsatz beliebig oft und schnell durch den Benutzer widerbefüllbares und damit weiter benutzbares Gerät ausgebildet sein, indem der Wasserbehälter mit einer gesonderten Wassereinfüllöffnung mit einem ohne Werkzeug von Hand lösbaren Verschlussdeckel versehen und die Druckgasflasche mit einer ebenfalls von Hand und ohne Werkzeug betätigbaren Schnellkupplung mit der Behälterbaugruppe verbunden ist.Conveniently, the extinguisher can be designed as often in use and quickly refilled by the user refillable and thus further usable device by the water tank provided with a separate water filling opening with a tool-free detachable cap and the gas cylinder with a likewise by hand and without Tool operable quick coupling is connected to the container assembly.

Ein Ausführungsbeispiel der Erfindung ist in den anliegenden Zeichnungen dargestellt und wird nachstehend unter Bezugnahme hierauf mehr im einzelnen beschrieben.An embodiment of the invention is illustrated in the accompanying drawings and will be described in more detail below with reference thereto.

In den Zeichnungen zeigt:

Fig. 1
in perspektivischer Ansicht eine Ausführungsform eines Feuerlöschgeräts nach der Erfindung im gebrauchsfertigen Zustand,
Fig. 2
in auseinandergezogener Darstellung das in Fig. 1 dargestellte Löschgerät,
Fig. 3
eine auseinandergezogene Darstellung der Löschpistole mit der Strahlrohr-Wechselan-Ordnung, und
Fig. 4
eine schematische, blockschaltbildartige Darstellung einer Ausführungsform eines Feuerlöschgeräts nach der Erfindung mit getrenntem Wasserbehälter und Schaummittelbehälter.
In the drawings shows:
Fig. 1
a perspective view of an embodiment of a fire extinguishing device according to the invention in the ready state,
Fig. 2
in an exploded view the in Fig. 1 illustrated extinguisher,
Fig. 3
an exploded view of the extinguishing gun with the Strahlrohr Wechselan order, and
Fig. 4
a schematic, block diagram-like representation of an embodiment of a fire extinguishing device according to the invention with separate water tank and foam container.

Fig. 1 zeigt in perspektivischer Ansicht das Löschgerät insgesamt mit einem Löschmittelbehälter 1, einer angekuppelten Druckgasflasche 2 und einer Löschpistole 3, die in eine am löschmittelbehälter 1 angebaute Halterung eingesteckt ist und über einen Löschmittelschlauch 4 mit dem Löschmittelbehälter verbunden ist. Fig. 1 shows a perspective view of the extinguisher in total with an extinguishing agent container 1, a coupled compressed gas cylinder 2 and a fire extinguisher 3, which is inserted into a holder attached to the extinguishing agent container 1 and is connected via an extinguishing agent hose 4 with the extinguishing agent container.

Fig. 2 zeigt das Löschgerät nach Fig.1 in auseinandergezogener Darstellung, um auch ansonsten verdeckte Bauteile sichtbar zu machen. Fig. 2 shows the extinguisher after Fig.1 in an exploded view, to make otherwise hidden components visible.

Der Löschmittelbehälter 1 hat eine Deckwand 11 und einen von dieser aus nach oben ragenden Löschmitteleinfüllstutzen 12, durch den Wasser und Schaummittel in den Löschmittelbehälter 1 eingefüllt werden kann. Ein mittels eines Handrad ohne Werkzeug aufsetzbarer und lösbarer Verschlussdeckel 13 mit einem Druckentlastungsventil 14 dient zum Verschließen des Einfüllstutzens 12.The extinguishing agent container 1 has a top wall 11 and an upwardly projecting from this extinguishing agent filler neck 12, can be filled by the water and foaming agent in the extinguishing agent container 1. An attachable by means of a handwheel without tools and detachable cap 13 with a pressure relief valve 14 serves to close the filler neck 12th

Auf der Deckwand 11 des Löschmittelbehälters 1 sind noch weitere Bauteile angebaut, die nachstehend noch erläutert werden und durch eine auf den Löschmittelbehälter 1 aufgesetzte Haube 15 abgedeckt werden, die am Löschmittelbehälter mittels Schrauben befestigbar ist und einen Tragegriff 16 aufweist.On the top wall 11 of the extinguishing agent container 1 other components are added, which will be explained below and covered by a patch on the extinguishing agent container 1 hood 15, which is fastened to the extinguishing agent container by means of screws and has a handle 16.

Außen am Löschmittelbehälter 1 ist auch die Halterung 17 für die Löschpistole 3 angebaut.Outside of the extinguishing agent container 1 and the holder 17 for the extinguishing gun 3 is grown.

Die Druckgasflasche 2 mit einem durch ein oben angeordnetes Handrad 21 zu öffnenden Auslassventil ist über eine mit einem Handrad 22 betätigbaren, als Schraubkupplung ausgebildeten Schnellkupplung 23 an ein Druckminderventil 5 ankuppelbar, das auf der Deckwand 11 des Löschmittelbehälters 1 montiert ist und oben mit einem Manometer 51 versehen ist.The compressed gas cylinder 2 with an openable by an overhead handwheel 21 outlet valve can be coupled via an operable with a handwheel 22, designed as a screw coupling quick coupling 23 to a pressure reducing valve 5, which is mounted on the top wall 11 of the extinguishing agent container 1 and above with a pressure gauge 51st is provided.

Weiter ist auf der Deckwand 11 des Löschmittelbehälters 1 ein Zumischventilblock 6 angebaut. Dieser enthält ein Zumischventil zum wahlweisen Zumischen von Druckgas in das aus dem Löschmittelbehälter 1 austretende Löschmittel. Das im Inneren des Ventilblocks 6 gebildete, in der Zeichnung nicht im einzelnen sichtbare Ventil ist manuell mittels eines Betätigungsorgans 61 betätigbar.Next, a mixing valve block 6 is mounted on the top wall 11 of the extinguishing agent container 1. This contains a mixing valve for selectively mixing compressed gas into the extinguishing agent emerging from the extinguishing agent tank 1. The formed in the interior of the valve block 6, not visible in detail in the drawing valve is manually actuated by means of an actuator 61.

Vom Boden des Löschmittelbehälters 1 führt ein Löschmittelauslassrohr 18 in den Ventilblock 6. Außerdem ist an dem in der Zeichnung oberen Anschlussstutzen 62 des Ventilblocks der Löschmittelschlauch 4 ankuppelbar, der zur Löschpistole 3 führt.From the bottom of the extinguishing agent container 1, a extinguishing agent outlet pipe 18 leads into the valve block 6. In addition, the extinguishing agent hose 4, which leads to the extinguishing pistol 3, can be coupled to the upper connecting piece 62 of the valve block in the drawing.

Vom Druckminderventil 5 führt (in der Zeichnung nicht sichtbar) eine Druckgasleitung in das Innere des Löschmittelbehälters 1, und zwar durch dessen Deckwand 11 hindurch, um das im Löschmittelbehälter 1 befindliche Löschmittel mit Druck zu beaufschlagen und dessen Auspressen durch das Löschmittelauslassrohr 18 zu bewirken. Außerdem führt vom Druckminderventil 5 eine Druckgasleitung in den Ventilblock 6 zu dem darin untergebrachten Zumischventil, das mittels des Betätigungsorgans 61 zwischen einer geschlossenen und einer offenen Stellung umschaltbar ist. Vorzugsweise ist dabei das Ventil so ausgebildet, dass der Öffnungsquerschnitt der Druckgasleitung innerhalb des Ventilblocks stufenlos zwischen der geschlossenen Stellung und der vollständig geöffneten Stellung verstellbar ist. Die Verstellung kann auch stufig erfolgen. Dadurch kann die Schaumverfestigung nach Wunsch eingestellt, nämlich zugeschaltet, abgeschaltet, und vorzugsweise in ihrem Ausmaß reguliert werden.From the pressure reducing valve 5 leads (not visible in the drawing) a compressed gas line into the interior of the extinguishing agent container 1, through its top wall 11 therethrough to pressurize the extinguishing agent in extinguishing agent container 1 and to cause its extrusion through the extinguishing agent outlet pipe 18. In addition, leads from the pressure reducing valve 5, a compressed gas line in the valve block 6 to the accommodated therein mixing valve, which is switchable by means of the actuator 61 between a closed and an open position. Preferably, the valve is designed so that the opening cross section of the compressed gas line within the valve block is continuously adjustable between the closed position and the fully open position. The adjustment can also be done in stages. Thereby, the foam consolidation can be set as desired, namely switched on, switched off, and preferably regulated in their extent.

Fig. 3 zeigt in auseinandergezogener Darstellung die Löschpistole 3 (ohne angeschlossenen Löschmittelschlauch 4). Diese besteht aus einem Pistolenteil 31 mit Betätigungsgriff 32, einem Kupplungsstück 33, das am Anschlussstück 32 anbaubar ist, einem Schaumrohr 34 und einem Sprühstrahlrohr 35. Das Schaumrohr 34 und das Sprühstrahlrohr 35 sind beide fest am Kupplungsstück 33 montiert. Das Kupplungsstück 33 weist ein Schwenkteil 36 auf, das mittels eines Handrads 37 feststellbar oder lösbar ist, und das ein Wechseln des jeweils wirksamen Rohrs, nämlich entweder des Schaumrohrs 34 oder des Sprühstrahlrohrs 35 an der Löschpistole 3 ermöglicht. Fig. 3 shows in exploded view the extinguishing pistol 3 (without connected extinguishing agent hose 4). This consists of a pistol part 31 with actuating handle 32, a coupling piece 33 which can be attached to the connecting piece 32, a foam tube 34 and a spray jet pipe 35. The foam tube 34 and the spray jet tube 35 are both fixedly mounted on the coupling piece 33. The coupling piece 33 has a pivoting part 36 which is detectable or detachable by means of a handwheel 37, and which allows a change of the respective effective tube, namely either the foam tube 34 or the spray jet tube 35 to the extinguishing gun 3.

Das Schaumrohr weist an seinem rückwärtigen Ende eine Hülse 38 auf, die an ihrem Umfang mit einer Mehrzahl von Öffnungen 39 versehen ist. Das rückwärtige Ende des Schaumrohrs 34 hat den Öffnungen 39 der Hülse 38 entsprechende Öffnungen. Die Hülse 38 ist um einen gewissen Drehwinkel, der, wie man aus der Zeichnung sieht, durch ein umfangmäßig verlaufendes Langloch 38a und eine Anschlagschraube 38b festgelegt wird, drehbar, um die Öffnungen 39 der Hülse 38 mit den entsprechenden Öffnungen des rückwärtigen Endes des Strahlrohrs 34 zwischen einer Position mit voller Überdeckung und einer Position ohne Überdeckung bewegen zu können. Durch Drehen der Hülse 38 können also die Öffnungen am hinteren Ende des Schaumrohrs 34 stufenlos verschlossen oder ganz oder teilweise geöffnet werden, um einen Zutritt von Umgebungsluft in den durch das Schaumrohr austretenden Schaum zu ermöglichen und dadurch die Schaumkonsistenz weiter zu modifizieren. Statt der drehbaren Hülse könnte auch eine axial verschiebbare Hülse vorgesehen sein.The foam tube has at its rear end a sleeve 38 which is provided at its periphery with a plurality of openings 39. The rear end of the foam tube 34 has the openings 39 of the sleeve 38 corresponding openings. The sleeve 38 is rotatable about a certain angle of rotation, which, as can be seen from the drawing, by a circumferentially extending slot 38a and a stop screw 38b, to the openings 39 of the sleeve 38 with the corresponding openings of the rear end of the jet pipe 34th between a position with full coverage and a position without overlap to move. By turning the sleeve 38 so the openings at the rear end of the foam tube 34 can be continuously closed or completely or partially opened to allow access of ambient air in the emerging through the foam tube foam and thereby further modify the foam consistency. Instead of the rotatable sleeve and an axially displaceable sleeve could be provided.

Fig. 4 zeigt in lediglich schematischer Darstellung eine Weiterbildung der Erfindung dahingehend, dass beim Löschmittelbehälter 1 ein separater Wasserbehälter 1a und ein separater Schaummittelbehälter 1b vorgesehen ist. Fig. 4 shows only a schematic representation of a development of the invention to the effect that the extinguishing agent container 1, a separate water tank 1 a and a separate foam agent container 1 b is provided.

Da der Schaummittelanteil im Wasser beim Schaumlöschbetrieb relativ klein ist, kann der Schaummittelbehälter wesentlich kleiner sein als der Wasserbehälter 1a. Vorteilhafter Weise ist aber der Schaummittelbehälter 1b so groß ausgebildet, dass er ein Mehrfaches der Schaummittelmenge aufnehmen kann, die für eine vollständige Füllung des Wasserbehälters 1a benötigt wird. Dann kann nämlich im Einsatz der Löscher, wenn das Wasser verbraucht ist, mit Wasser nachgefüllt werden und weiter als Schaumlöscher betrieben werden, wenn der Schaummittelvorrat für mehrere Wasserfüllungen reicht.Since the foaming agent content in the water during the foam extinguishing operation is relatively small, the foaming agent tank can be substantially smaller than the water tank 1a. Advantageously, however, the foaming agent container 1 b is formed so large that it can accommodate a multiple of the amount of foaming agent, which is needed for a complete filling of the water tank 1 a. Then, in use, the extinguisher, when the water is consumed, can be refilled with water and continue to operate as a foam extinguisher when the foaming agent supply reaches for several water fillings.

Der Schaummittelbehälter kann entweder innerhalb des Wasserbehälters angeordnet sein, aber selbstverständlich mit eigener Einfüllöffnung, oder an irgendeiner zweckmäßigen Stelle außen am Wasserbehälter angebaut sein, entweder seitlich, oder oben oder unten an den Wasserbehälter anschließend.The foaming agent container can either be arranged inside the water container, but of course be attached with its own filling opening, or at any convenient point outside the water tank, either laterally, or above or below the water tank then.

Der Ventilblock 6 enthält dann sowohl ein manuell betätigbares Zumischventil zum Einleiten von Druckgas in die vom Wasserbehälter 1a zum Ventilblock 6 führende Auslassleitung 18, als auch ein manuell betätigbares Zumischventil 6b zum Zumischen von Schaummittel in das Wasser in der Auslassleitung 18.The valve block 6 then contains both a manually operable mixing valve for introducing pressurized gas into the outlet line leading from the water tank 1 a to the valve block 6 18, as well as a manually operable admixing valve 6 b for mixing foam in the water in the outlet 18.

Die Anordnung kann so getroffen sein, dass vom Sicherheitsventil 5 eine Druckgasleitung entweder direkt in den Schaummittelbehälter 1b führt und dort das Schaummittel ebenso unter Auspressdruck gesetzt wird wie das Wasser im Wasserbehälter la, oder das Beimischventil 6b für das Schaummittel kann mit einem (nicht dargestellten) Druckgasventil kombiniert sein, das beim Zuschalten von Schaummitteleinspeisung in das Löschwasser eine Druckgasleitung, die vom Sicherheitsventil 5 über den Ventilblock 6 zum Schaummittelbehälter 1b führt, gleichzeitig betätigt, so dass der Schaummittelbehälter nur im Schaumlöschbetrieb unter Auspressdruck gesetzt wird.The arrangement may be such that from the safety valve 5, a compressed gas line either directly into the Schaummittelbehälter 1b leads and there the foaming agent is also placed under Auspressdruck as the water in the water tank la, or the mixing valve 6b for the foaming agent can with a (not shown) Compressed gas valve be combined, which simultaneously activates a pressurized gas line leading from the safety valve 5 via the valve block 6 to the foaming agent container 1b when adding Schaummitteleinspeisung in the extinguishing water, so that the foaming agent container is set only in the foam extinguishing operation under pressure.

Auch das Beimischventil 6b zum Beimischen von Schaummittel kann so ausgebildet sein, dass es entweder nur zwischen einer Ein- und einer Aus-Stellung bewegbar ist, aber vorzugsweise so, dass durch stufige oder stufenlose Verstellung auch eine Regulierung der Schaumzusammensetzung, also des Schaummittelanteils im Wasser hergestellt werden kann.Also, the admixing valve 6b for admixing foaming agent may be formed so that it is either only movable between an on and an off position, but preferably so that by stage or stepless adjustment also a regulation of the foam composition, ie the Schaummittelanteils in the water can be produced.

Claims (5)

  1. A portable or wheeled fire extinguisher which is operable with water or foam, having a pressure resistant extinguishing medium container (1), a pressurized gas bottle (2) for pressurizing the extinguishing medium container (1) for expelling the extinguishing medium, and an extinguishing medium gun (3) which is in communication with the extinguishing medium container (1) via a pressure-resistant extinguishing medium hose (4),
    wherein a mixing armature (6) is incorporated into the extinguishing medium line extending between the extinguishing medium container (1) and the extinguishing gun (3), the mixing armature being in connection with a pressurized gas line through which additional pressurized gas can be fed into the extinguishing medium arriving at the extinguishing gun (3) during expulsion of the extinguishing medium from the extinguishing medium container (1),
    wherein the extinguishing medium container (1) has a separate water container (1a) and a separate foam medium container (1b), wherein the mixing armature (6) is mounted on the extinguishing medium container (1) in the form of a valve block and includes an extinguishing medium inlet connected to the outlet of the extinguishing medium container (1) and an extinguishing medium outlet connected to the extinguishing medium hose (4), and the mixing armature (6) includes a manually operable admixing valve (6b) which is movable between a closed position and an open position in a stepwise or stepless fashion, for selectively admixing foam medium into a water outlet line (18) coming from the water container (1a), characterised in that the mixing armature (6) contains an admixture valve (6a) that is manually and selectively switchable in a stepwise or stepless fashion between a closed position and an open position by means of an operating organ (61) for feeding order to feed additional pressurized gas into the expelled extinguishing medium.
  2. Fire extinguisher according to claim 1, wherein the admixture of pressurized gas and the admixture of foam medium is effected at a common inlet point or at closely adjacent inlet points into the water outlet line (18) coming from the water container (1a).
  3. Fire extinguisher according to any one of claims 1 or 2, wherein the admixing valve (6b) for admixing foam medium is coupled with a pressurized gas valve which opens the feeding of pressurized gas into the foam medium container (1b) for the expulsion of foam medium when the foam medium admixing valve (6b) is opened.
  4. Fire extinguisher according to any one of claims 1 to 3, wherein the extinguishing gun is provided with a change mechanism (33, 36, 37) for operatively connecting at least two different jet tubes, that is, at least a foam tube (34) and a spray jet tube (35) to the extinguishing medium outlet of the extinguishing gun (3).
  5. Fire extinguisher according to any one of claims 1 to 4, wherein a foam tube (34) disposed on the extinguishing gun is provided in its rear region with a rotatable or axially displaceable sleeve (38) with openings (39), and the rear end of the foam tube (34) is provided with corresponding openings, wherein by displacing or rotating the sleeve (38) on the rear end region of the foam tube (34) the openings of the foam tube can be adjusted between a state wherein they are completely covered by the sleeve (38), and a state wherein they are completely or partially opened by partial or complete alignment with the openings (39) of the sleeve (38).
EP11776326.8A 2010-06-04 2011-05-30 Water/foam fire extinguisher with adjustable foam consistency Active EP2588204B1 (en)

Priority Applications (2)

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PL11776326T PL2588204T3 (en) 2010-06-04 2011-05-30 Water/foam fire extinguisher with adjustable foam consistency
SI201131639T SI2588204T1 (en) 2010-06-04 2011-05-30 Water/foam fire extinguisher with adjustable foam consistency

Applications Claiming Priority (2)

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DE102010022789A DE102010022789A1 (en) 2010-06-04 2010-06-04 Water / foam fire extinguisher with adjustable foam consistency
PCT/DE2011/001138 WO2012006988A2 (en) 2010-06-04 2011-05-30 Water/foam fire extinguisher with adjustable foam consistency

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EP2588204B1 true EP2588204B1 (en) 2018-10-31

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US (1) US20140196918A1 (en)
EP (1) EP2588204B1 (en)
DE (1) DE102010022789A1 (en)
ES (1) ES2707287T3 (en)
PL (1) PL2588204T3 (en)
SI (1) SI2588204T1 (en)
TR (1) TR201900203T4 (en)
WO (1) WO2012006988A2 (en)

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WO2016086321A1 (en) 2014-12-05 2016-06-09 Jp Sicherheitstechnik Gmbh Arrangement for producing an extinguishing-agent foam or active-substance foam
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US10722741B2 (en) * 2017-12-01 2020-07-28 International Business Machines Corporation Automatically generating fire-fighting foams to combat Li-ion battery failures
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ES2707287T3 (en) 2019-04-03
DE102010022789A1 (en) 2011-12-08
WO2012006988A3 (en) 2013-05-10
EP2588204A2 (en) 2013-05-08
WO2012006988A2 (en) 2012-01-19
SI2588204T1 (en) 2019-03-29
PL2588204T3 (en) 2019-04-30
US20140196918A1 (en) 2014-07-17
TR201900203T4 (en) 2019-02-21

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