EP1582237B1 - Fire extinguisher for fires produced by burning grease or fat - Google Patents

Fire extinguisher for fires produced by burning grease or fat Download PDF

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Publication number
EP1582237B1
EP1582237B1 EP04030408A EP04030408A EP1582237B1 EP 1582237 B1 EP1582237 B1 EP 1582237B1 EP 04030408 A EP04030408 A EP 04030408A EP 04030408 A EP04030408 A EP 04030408A EP 1582237 B1 EP1582237 B1 EP 1582237B1
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EP
European Patent Office
Prior art keywords
fire extinguisher
grease
nozzle
fat
extinguishing agent
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Not-in-force
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EP04030408A
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German (de)
French (fr)
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EP1582237A1 (en
Inventor
Anton Neumeir
Reinhard Effenberger
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HNE Technologie AG
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HNE Technologie AG
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Publication of EP1582237A1 publication Critical patent/EP1582237A1/en
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C99/00—Subject matter not provided for in other groups of this subclass
    • A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
    • A62C99/0072—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using sprayed or atomised water
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/02—Nozzles specially adapted for fire-extinguishing
    • A62C31/05—Nozzles specially adapted for fire-extinguishing with two or more outlets

Definitions

  • the invention relates to a grease fire extinguisher as a liquid pressure extinguisher with a small filling volume.
  • liquid pressure extinguishers which were previously used as water or foam extinguishers and filled with this grease fire extinguishing agent, have a filling volume of at least 6 Liter used to apply sufficient to extinguish fat burns amount of liquid fat fire extinguisher can.
  • a grease fire extinguisher according to the preamble of claim 1 is known from the document DE 203 01 378.
  • the invention has for its object to provide a grease fire extinguisher, which manages with the same fire extinguishing with significantly less fat fire extinguishing agent.
  • the fat fire extinguisher according to the invention thus operates with a specially configured nozzle in contrast to the previously used to extinguish fat burns, although filled with liquid grease extinguishing agent, but otherwise including extinguishing hose and extinguisher conventionally constructed liquid pressure extinguishers.
  • the thus unexpectedly achieved effect is so considerable that instead of the previously required in liquid extinguishers for safe extinguishment of grease fires minimum amount of liquid grease fire extinguisher "FettEx" of six liters now a safe extinguishing success can be achieved with only two liters of filling volume.
  • the extinguishing agent "FettEx” (approval number PL 13/2000 ”) is a special liquid extinguishing agent for oils and fats that creates a closed gas-tight foam blanket and immediately stifles the fire
  • the extinguishing agent must be applied to finely distributed.
  • the ready-to-use commercial grease firing solution "FettEx” has the following technical specification: Density: 1.28 kg / liter PH value about 8.5 Refractive index nD 20 1.40 Viscosity at + 20 ° C 5 ⁇ 0.5 mm 2 / s Viscosity at -15 ° C 29 ⁇ 3.0 mm 2 / s
  • Erase pulse I V / t ⁇ x ⁇ A
  • V means the extinguishing agent volume
  • t the extinguishing time
  • A the burning area.
  • the flow rate for a fat fire extinguisher according to the invention with 2 liters capacity may be at 6 to a maximum of 12 liters per minute.
  • the fat fire extinguisher according to the invention brings decisive advantages because it requires only a small quantity of extinguishing agent.
  • a situation of a large fryer with a capacity of 36 kg frying fat as is the situation in the practice of catering establishments and as this is also intended as a standard test object for Lösch insstale is when extinguishing such a burning fryer with a conventional Extinguisher with at least 6 liters of filling volume already justified the risk of overflowing the fryer with the leakage of burning hot fat, which poses a great danger, because through overflowed grease, even if it has already been extinguished, other objects can be set on fire, because the overflowing grease still has a temperature of about 300 ° C. It is also dangerous when leaking grease comes into contact with water, which leads to the sudden evaporation of the water with danger to persons present by scalding.
  • the effect of the fat fire extinguisher according to the invention is that the application of the liquid fat fire extinguishing agent takes place in an optimized form and this fat fire extinguishing agent so unfolds the optimal extinguishing effect in a small amount.
  • the fat fire extinguisher according to the invention is designed as a liquid pressure extinguisher with an extinguishing agent container of two liters capacity and a specially configured nozzle.
  • the device operates at an operating pressure of 12 to 18 bar.
  • the nozzle is designed as a cup body 1 with an externally threaded screw neck 2 for screwing into the outlet valve.
  • a sputtering plate 3 is used, which contains a coronary arrangement of six nozzle openings 4 in the embodiment.
  • the space behind the sputtering plate 3 in the cup body is designed as a diverging diffuser chamber.
  • the nozzle openings 4 are each relatively small and expand rearwardly in the sputtering plate 3 via a cone with a large cone angle in a cylindrical, rearwardly open bore substantially larger diameter, in each of which a swirl body 5 is inserted.
  • the swirl body 5 are clearly visible in the exploded view of FIG.
  • the liquid extinguisher is expediently designed as a permanent pressure extinguisher. Since with continuous pressure extinguishers during the progressive deletion of the pressure gradually decreases, accordingly reduces the throw distance. For the application given here to extinguish fat burns, however, this circumstance is of no importance.
  • a very finely atomized becomes more uniform Spray jet with a diameter of about 40 cm generated that quickly forms a dense extinguishing agent layer over the fire and causes with little use of extinguishing a suffocation of the fire and rapid cooling of the fire.

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

Abstract

A twister (5) is arranged in each atomizing nozzle (4) located ahead of a nozzle opening, and applies spin to fire extinguishing agent before reaching the nozzle opening. The atomizing nozzles are formed in parallel at an atomizing plate (3).

Description

Die Erfindung betrifft ein Fettbrandlöschgerät als Flüssigkeitsdrucklöscher mit kleinem Füllvolumen.The invention relates to a grease fire extinguisher as a liquid pressure extinguisher with a small filling volume.

Das Löschen von Fettbränden stellt bisher ein großes Problem dar. Nach langen Tests unter anderem der Berufsgenossenschaften Nahrungsmittel und Gaststätten musste festgestellt werden, daß die bisher gebräuchlichen Löschmittel wie Pulver, Kohlendioxid usw. nicht oder nur ungenügend zum Löschen von Fettbränden geeignet sind. Aus diesem Grund wurden bereits spezielle Löschmittel für Fettbrände entwickelt. Ein solches für Fettbrände entwickeltes flüssiges Fettbrandlöschmittel ist unter der Produktbezeichnung "FettEx" bekannt und in Gebrauch. Um damit die nach europäischen Richtlinien festgesetzten Normen (EN3) zu erreichen, nämlich um die genormten Prüfobjekte erfolgreich ablöschen zu können, werden bisher mit diesem Fettbrandlöschmittel befüllte Flüssigkeitsdrucklöschgeräte, wie sie bisher auch als Wasser- oder Schaumlöscher eingesetzt werden, mit einem Füllvolumen von mindestens 6 Liter verwendet, um eine zum Ablöschen von Fettbränden ausreichende Menge des flüssigen Fettbrandlöschmittels aufbringen zu können.The eradication of fat burns has been a major problem. After long tests, including the professional associations food and catering establishments had to be found that the previously used extinguishing agents such as powder, carbon dioxide, etc. are not or insufficiently suitable for extinguishing fat burns. For this reason, special extinguishing agents have been developed for fat burns. Such a liquid fat fire extinguishing agent developed for fat burning is known under the product name "FettEx" and in use. In order to achieve the standards set by European directives (EN3), namely to be able to successfully extinguish the standardized test objects, liquid pressure extinguishers, which were previously used as water or foam extinguishers and filled with this grease fire extinguishing agent, have a filling volume of at least 6 Liter used to apply sufficient to extinguish fat burns amount of liquid fat fire extinguisher can.

Ein Fettbrandlöschgerät gemäss dem Oberbegriff von Anspruch 1 ist aus dem Dokument DE 203 01 378 bekannt.A grease fire extinguisher according to the preamble of claim 1 is known from the document DE 203 01 378.

Der Erfindung liegt die Aufgabe zugrunde, ein Fettbrandlöschgerät zu schaffen, das bei gleichem Löscherfolg mit bedeutend weniger Fettbrandlöschmittel auskommt.The invention has for its object to provide a grease fire extinguisher, which manages with the same fire extinguishing with significantly less fat fire extinguishing agent.

Diese Aufgabe wird gemäß der Erfindung durch das im Anspruch 1 angegebene Fettbrandlöschgerät gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.This object is achieved according to the invention by the fat fire extinguisher specified in claim 1. Advantageous embodiments of the invention are the subject of the dependent claims.

Das erfindungsgemäße Fettbrandlöschgerät arbeitet also mit einer besonders konfigurierten Düse im Gegensatz zu den bisher zum Löschen von Fettbränden benutzten, zwar mit flüssigem Fettbrandlöschmittel befüllten, aber ansonsten einschließlich Löschschlauch und Löschpistole herkömmlich aufgebauten Flüssigkeitsdrucklöschern. Die damit unerwartet erreichte Wirkung ist dermaßen erheblich, daß statt der bisher in Flüssigkeitslöschern zum sicheren Löschen von Fettbränden erforderlichen Minimalmenge an flüssigem Fettbrandlöschmittel "FettEx" von sechs Litern nunmehr ein sicherer Löscherfolg mit nur zwei Liter Füllvolumen erreicht werden kann.The fat fire extinguisher according to the invention thus operates with a specially configured nozzle in contrast to the previously used to extinguish fat burns, although filled with liquid grease extinguishing agent, but otherwise including extinguishing hose and extinguisher conventionally constructed liquid pressure extinguishers. The thus unexpectedly achieved effect is so considerable that instead of the previously required in liquid extinguishers for safe extinguishment of grease fires minimum amount of liquid grease fire extinguisher "FettEx" of six liters now a safe extinguishing success can be achieved with only two liters of filling volume.

Das Löschmittel "FettEx" (Zulassungsnummer PL 13 / 2000") ist ein spezielles flüssiges Löschmittel für Öle und Speisefette, das eine geschlossene gasdichte Schaumdecke ergibt und das Feuer sofort erstickt. Es hat auch einen sehr guten Kühleffekt, wodurch dem Öl oder Fett sowie der umgebenden Einrichtung sofort Wärme entzogen wird. Von großer Bedeutung ist aber, daß das Löschmittel dazu fein verteilt ausgebracht werden muß.The extinguishing agent "FettEx" (approval number PL 13/2000 ") is a special liquid extinguishing agent for oils and fats that creates a closed gas-tight foam blanket and immediately stifles the fire However, of great importance is that the extinguishing agent must be applied to finely distributed.

Die gebrauchsfertige kommerziell verfügbare Fettbrandlöschmittellösung "FettEx" hat folgende technische Spezifikation: Dichte: 1,28 kg/Liter pH-Wert ca. 8,5 Brechungsindex nD20 1,40 Viskosität bei +20°C 5 ± 0,5 mm2/s Viskosität bei -15°C 29 ± 3,0 mm2/s The ready-to-use commercial grease firing solution "FettEx" has the following technical specification: Density: 1.28 kg / liter PH value about 8.5 Refractive index nD 20 1.40 Viscosity at + 20 ° C 5 ± 0.5 mm 2 / s Viscosity at -15 ° C 29 ± 3.0 mm 2 / s

Dabei muß beachtet werden, daß zum Erreichen eines optimalen Löschergebnisses ein Löschimpuls nachfolgender Formel eingehalten werden muß: Löschimpuls I = V / t ⁢   x ⁢   A

Figure imgb0001
wobei V das Löschmittelvolumen, t die Löschdauer und A die Brandfläche bedeutet. Die Durchflussmenge für einen Fettbrandlöscher nach der Erfindung mit 2 Liter Füllvolumen darf bei 6 bis maximal 12 Liter pro Minute liegen.It should be noted that to achieve an optimal erase result, an erase pulse of the following formula must be adhered to: Erase pulse I = V / t ⁢ x ⁢ A
Figure imgb0001
 where V means the extinguishing agent volume, t the extinguishing time and A the burning area. The flow rate for a fat fire extinguisher according to the invention with 2 liters capacity may be at 6 to a maximum of 12 liters per minute.

Das erfindungsgemäße Fettbrandlöschgerät bringt gerade, weil es mit einer geringen Löschmittelmenge auskommt, entscheidende Vorteile. Geht man einmal von einer Situation einer großen Friteuse mit einer Füllmenge von 36 kg Frittierfett aus, wie dies der Situation in der Praxis bei Gastronomiebetrieben entspricht und wie dies auch als genormtes Prüfobjekt für Löschleistungsversuche vorgesehen ist, wird beim Ablöschen einer solchen brennenden Friteuse mit einem herkömmlichen Löscher mit mindestens 6 Liter Füllvolumen bereits die Gefahr des Überlaufens der Friteuse mit dem Auslaufen von brennendem heißem Fett begründet, wovon eine große Gefahr ausgeht, weil durch übergelaufenes Fett selbst dann, wenn es schon abgelöscht wurde, andere Gegenstände in Brand gesetzt werden können, weil das überlaufende Fett immer noch eine Temperatur von ca 300°C hat. Gefährlich ist es auch, wenn ausgelaufenes Fett mit Wasser in Berührung kommt, was zum schlagartigen Verdampfen des Wassers mit Gefahr für anwesende Personen durch Verbrühen nach sich zieht.The fat fire extinguisher according to the invention brings decisive advantages because it requires only a small quantity of extinguishing agent. Assuming once a situation of a large fryer with a capacity of 36 kg frying fat, as is the situation in the practice of catering establishments and as this is also intended as a standard test object for Löschleistungsversuche is when extinguishing such a burning fryer with a conventional Extinguisher with at least 6 liters of filling volume already justified the risk of overflowing the fryer with the leakage of burning hot fat, which poses a great danger, because through overflowed grease, even if it has already been extinguished, other objects can be set on fire, because the overflowing grease still has a temperature of about 300 ° C. It is also dangerous when leaking grease comes into contact with water, which leads to the sudden evaporation of the water with danger to persons present by scalding.

Die Wirkung des erfindungsgemäßen Fettbrandlöschgeräts besteht darin, daß das Ausbringen des flüssigen Fettbrandlöschmittels in einer optimierten Form stattfindet und dieses Fettbrandlöschmittel so in geringer Menge die optimale Löschwirkung entfaltet.The effect of the fat fire extinguisher according to the invention is that the application of the liquid fat fire extinguishing agent takes place in an optimized form and this fat fire extinguishing agent so unfolds the optimal extinguishing effect in a small amount.

Die Erfindung wird nachstehend unter Bezugnahme auf die anliegenden Zeichnungen in näheren Einzelheiten beschrieben. In den Zeichnungen zeigt:

Fig. 1
eine perspektivische Darstellung der Schaumdüse eines Fettbrandlöschers nach der Erfindung in auseinandergezogener Darstellung,
Fig. 2
eine Stirnansicht der Schaumdüse nach Fig. 1 von vom, und
Fig. 3
einen Axialschnitt durch die Schaumdüse.
The invention will be described below in more detail with reference to the accompanying drawings. In the drawings shows:
Fig. 1
a perspective view of the foam nozzle of a grease fire extinguisher according to the invention in an exploded view,
Fig. 2
an end view of the foam nozzle according to Fig. 1 of, and
Fig. 3
an axial section through the foam nozzle.

Das erfindungsgemäße Fettbrandlöschgerät ist als Flüssigkeitsdrucklöschgerät mit einem Löschmittelbehälter von zwei Liter Füllmenge und einer besonders konfigurierten Düse ausgebildet. Das Gerät arbeitet mit einem Betriebsdruck von 12 bis 18 bar.The fat fire extinguisher according to the invention is designed as a liquid pressure extinguisher with an extinguishing agent container of two liters capacity and a specially configured nozzle. The device operates at an operating pressure of 12 to 18 bar.

In den Zeichnungen dargestellt ist nur die Düse, da das Löschgerät im übrigen von herkömmlicher Bauart ist. Die Düse, die in den Fig. 1 bis 3 der Zeichnungen dargestellt ist, ist direkt in das Auslassventil des Löschmittelbehälters eingeschraubt.In the drawings, only the nozzle is shown, since the extinguisher is otherwise of conventional design. The nozzle shown in Figs. 1 to 3 of the drawings is screwed directly into the outlet valve of the extinguishing agent container.

Gemäß den Zeichnungen ist die Düse als Becherkörper 1 mit einem mit Außengewinde versehenen Einschraubhals 2 zum Einschrauben in das Auslassventil ausgebildet. In dem Becherkörper ist eine Zerstäubungsplatte 3 eingesetzt, die eine kranzartige Anordnung von beim Ausführungsbeispiel sechs Düsenöffnungen 4 enthält. Der Raum hinter der Zerstäubungsplatte 3 im Becherkörper ist als divergierende Diffusorkammer ausgebildet. Die Düsenöffnungen 4 sind jeweils relativ klein und erweitern sich nach hinten in der Zerstäubungsplatte 3 über einen Konus mit großem Kegelwinkel in eine zylindrische, nach hinten offene Bohrung wesentlich größeren Durchmessers, in die jeweils ein Drallkörper 5 eingesetzt ist. Die Drallkörper 5 sind in der Auseinandergezogenen Darstellung nach Fig. 1 gut erkennbar, und ihre Anordnung in der Zerstäubungsplatte 3 ist in dem Schnitt nach Fig. 3 deutlich sichtbar. Die Drallkörper 5 bewirken in Zusammenwirken mit den Düsenöffnungen 4 die Zerstäubung des aus dem Löschmittelbehälter durch den Einschraubhals 2 zugeführten flüssigen Löschmittels in einen gleichmäßigen divergierenden Sprühstrahl von etwa 40 cm Durchmesser. Bei dem oben erwähnten Betriebsdruck des Geräts von 12 bis 18 bar wird eine Wurfweite von ca. 2 bis 3 Meter erreicht.According to the drawings, the nozzle is designed as a cup body 1 with an externally threaded screw neck 2 for screwing into the outlet valve. In the cup body, a sputtering plate 3 is used, which contains a coronary arrangement of six nozzle openings 4 in the embodiment. The space behind the sputtering plate 3 in the cup body is designed as a diverging diffuser chamber. The nozzle openings 4 are each relatively small and expand rearwardly in the sputtering plate 3 via a cone with a large cone angle in a cylindrical, rearwardly open bore substantially larger diameter, in each of which a swirl body 5 is inserted. The swirl body 5 are clearly visible in the exploded view of FIG. 1, and their arrangement in the sputtering plate 3 is clearly visible in the section of FIG. 3. The swirl bodies 5 effect, in cooperation with the nozzle openings 4, the atomization of the liquid extinguishing agent supplied from the extinguishing agent container through the screw neck 2 into a uniform diverging spray jet of about 40 cm diameter. At the above-mentioned operating pressure of the device from 12 to 18 bar, a throw of about 2 to 3 meters is achieved.

Das Flüssigkeitslöschgerät ist zweckmäßigerweise als Dauerdrucklöscher ausgeführt. Da bei Dauerdrucklöschern während des fortschreitenden Löschvorgangs der Druck allmählich abfällt, reduziert sich dementsprechend die Wurfweite. Für den hier gegebenen Anwendungsfall zum Löschen von Fettbränden kommt diesem Umstand allerdings keine Bedeutung zu.The liquid extinguisher is expediently designed as a permanent pressure extinguisher. Since with continuous pressure extinguishers during the progressive deletion of the pressure gradually decreases, accordingly reduces the throw distance. For the application given here to extinguish fat burns, however, this circumstance is of no importance.

Aufgrund der besonderen Konfiguration der Düse des erfindungsgemäßen Fettbrandlöschgeräts, wie sie in den Fig. 1 bis 3 dargestellt ist, wird ein sehr fein zerstäubter gleichmäßiger Sprühstrahl mit einem Durchmesser von etwa 40 cm erzeugt, der schnell eine dichte Löschmittelschicht über dem Brandherd bildet und mit wenig Löschmitteleinsatz ein Ersticken des Brands und eine schnelle Abkühlung des Brandherds bewirkt.Due to the particular configuration of the nozzle of the fat-burning extinguisher according to the invention, as shown in Figs. 1 to 3, a very finely atomized becomes more uniform Spray jet with a diameter of about 40 cm generated that quickly forms a dense extinguishing agent layer over the fire and causes with little use of extinguishing a suffocation of the fire and rapid cooling of the fire.

Claims (5)

  1. A grease fire extinguisher for use in connection with a liquid grease fire extinguishing agent, said fire extinguisher being formed as a pressurized fire extinguisher and being equipped with a nozzle (1) having a plurality of atomizing nozzles (4), each of which is preceded by a twist member (5) for applying a spin to the pressurized fire extinguishing agent that reaches the nozzle, characterized in that the atomizing nozzles (4) are arranged in parallel to one another in an atomizing plate (3) in which the twist members (5) are respectively located in an enlarged locating opening downstream of the respective nozzle.
  2. The grease fire extinguisher according to claim 1, wherein the atomizing nozzles (4) are arranged in the atomizing plate (3) in a circular array.
  3. The grease fire extinguisher according to claim 1 or 2, wherein the atomizing plate (3) is inserted into a cup-like body (1) forming a divergent diffuser chamber downstream of the atomizing plate (3).
  4. The grease fire extinguisher according to any one of claims 1 to 3, wherein the nozzle (1) is threaded directly into the discharge valve of the fire extinguishing agent container with a nozzle neck (2).
  5. The grease fire extinguisher according to any one of claims 1 to 4, wherein the fire extinguisher is operated at a pressure of 12-18 bar.
EP04030408A 2004-03-26 2004-12-22 Fire extinguisher for fires produced by burning grease or fat Not-in-force EP1582237B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004014780 2004-03-26
DE102004014780A DE102004014780A1 (en) 2004-03-26 2004-03-26 Grease fire extinguisher

Publications (2)

Publication Number Publication Date
EP1582237A1 EP1582237A1 (en) 2005-10-05
EP1582237B1 true EP1582237B1 (en) 2007-02-07

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EP04030408A Not-in-force EP1582237B1 (en) 2004-03-26 2004-12-22 Fire extinguisher for fires produced by burning grease or fat

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US (1) US20050211448A1 (en)
EP (1) EP1582237B1 (en)
AT (1) ATE353242T1 (en)
DE (2) DE102004014780A1 (en)
ES (1) ES2281745T3 (en)
IL (1) IL166356A (en)

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CA2743906A1 (en) * 2008-12-23 2010-07-01 Utc Fire & Security Corporation Fire extinguisher and discharge nozzle assembly
RU2555559C1 (en) * 2014-04-08 2015-07-10 Владимир Александрович Форстман Nozzle
RU2623923C1 (en) * 2015-12-30 2017-06-29 Антон Валерьевич Селютин Method for fire extinguishing substance production and spray channel applicable for its implementation
KR101693765B1 (en) * 2016-02-12 2017-01-06 이만금 nozzle for fighting the fire
US11951342B2 (en) 2019-03-29 2024-04-09 Carrier Corporation Nozzle and valve assembly for a fire extinguisher
GB202101475D0 (en) * 2021-02-03 2021-03-17 Carr Roger Fire Extinguisher
WO2022167787A1 (en) * 2021-02-03 2022-08-11 Roger Carr Fire extinguisher
CN113181583B (en) * 2021-05-14 2022-10-25 安华消防新材料科技（江苏）有限公司 Shower nozzle mechanism and light-duty extinguishing device of aerogel backpack

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US2375615A (en) * 1942-05-14 1945-05-08 Randolph Lab Inc Hand fire extinguisher
US2570190A (en) * 1948-08-10 1951-10-09 Edward D Ballard Fog-producing attachment for fire-fighting nozzles
US4813487A (en) * 1987-01-20 1989-03-21 Mikulec Conrad S Fire extinguisher installation
DK0660754T3 (en) * 1992-09-15 1998-11-02 Goeran Sundholm Nozzle with screw spring that brings fluid in swirl motion
US5794705A (en) * 1995-04-07 1998-08-18 Korea Institute Of Machinery And Metals Fire extinguishing apparatus having a spraying nozzle assembly
DK174899B1 (en) * 1997-12-19 2004-02-09 Firexpress Aps fire extinguishing device
FR2781697B1 (en) * 1998-07-15 2001-08-31 Proteg Incendie LIQUID SPRAY NOZZLE
US6315219B1 (en) * 2000-10-20 2001-11-13 Nathan Palestrant Misting-system fluid-atomization manifold
US6394366B1 (en) * 2000-10-27 2002-05-28 Spraying Systems Co. Spray nozzle assembly
DE10062674A1 (en) * 2000-12-15 2002-06-20 Hemsing Sachverstaendigenbuero Firefighting system for highrise racking comprises dry ring system fitted at packing ceiling and composed of pipe segments whose fitted strings terminate in wide-reach spray heads via magnetic shutoff valves.
US20030173422A1 (en) * 2002-03-12 2003-09-18 Ching-Chung Lee Nozzle device of foam fire extinguisher
DE20301378U1 (en) * 2003-01-30 2003-05-28 Herzog, Hans-Joachim, 39387 Oschersleben Flat spray head for fire fighting systems has number of spray nozzles and is connected individually or in paired arrangement to water supply pipe via tapping sleeves

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DE102004014780A1 (en) 2005-10-13
ATE353242T1 (en) 2007-02-15
IL166356A0 (en) 2006-01-16
DE502004002858D1 (en) 2007-03-22
ES2281745T3 (en) 2007-10-01
IL166356A (en) 2009-09-01
EP1582237A1 (en) 2005-10-05
US20050211448A1 (en) 2005-09-29

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