EP1224014B2 - Device for extinguishing a fire - Google Patents

Device for extinguishing a fire Download PDF

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Publication number
EP1224014B2
EP1224014B2 EP00979481A EP00979481A EP1224014B2 EP 1224014 B2 EP1224014 B2 EP 1224014B2 EP 00979481 A EP00979481 A EP 00979481A EP 00979481 A EP00979481 A EP 00979481A EP 1224014 B2 EP1224014 B2 EP 1224014B2
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EP
European Patent Office
Prior art keywords
extinguishing
supply line
nozzles
pressure
fluid
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EP00979481A
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German (de)
French (fr)
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EP1224014B1 (en
EP1224014A1 (en
Inventor
Dirk K. Sprakel
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Fogtec Brandschutz GmbH and Co KG
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Fogtec Brandschutz GmbH and Co KG
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Priority to DE20023800U priority Critical patent/DE20023800U1/en
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    • 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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • A62C35/60—Pipe-line systems wet, i.e. containing extinguishing material even when not in use
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • A62C35/68—Details, e.g. of pipes or valve systems

Definitions

  • the invention relates to a device for extinguishing a fire with in rooms of a building, in particular a building or a ship.
  • the supply line is at least partially filled in the rest position with pressurized extinguishing fluid.
  • the supply line or the extinguishing nozzles connected to the supply line are equipped with valves which prevent unwanted escape of extinguishing fluid in the rest position.
  • the valves open in the event of fire automatically or remotely controlled by a control, so that extinguishing fluid can be discharged from the extinguishing nozzles.
  • the extinguishing nozzles may be formed in these systems such that the extinguishing nozzles are equipped with open nozzle inserts, which may be connected via channels formed in the extinguishing nozzles with the supply line.
  • These nozzle inserts can be designed such that they generate a extinguishing mist when exposed to a high pressure extinguishing fluid.
  • An advantage of such a filled system is that the volume of the filled supply line is used for storing the extinguishing fluid.
  • the available storage energy and the capacity of the pressure vessels can be optimally utilized, in particular in systems in which the extinguishing fluid supply takes place via stored pressure energy. This makes it possible to use smaller pressure vessels, whereby a cost and space savings is achieved.
  • the filled systems offer the advantage that the time required for the unfilled systems for filling the supply line deleted.
  • the extinguishing fluid exits immediately after opening the valves, reducing the response time of the system to fire detection and preventing the fire from spreading further.
  • a disadvantage of the systems described above is the considerable manufacturing, assembly and maintenance costs for the valve devices used in these systems and the possibly necessary control of the valves.
  • the valves fail in case of fire, so that a fight against the fire is impossible.
  • the object of the invention is to provide a device of the type mentioned above with simple and inexpensive means that enables a safe response.
  • the supply lines are filled with extinguishing fluid.
  • the inflow of extinguishing fluid into the per se open extinguishing nozzles is closed in the rest state by a rupture disc, which is arranged in the region of the respective extinguishing nozzles associated terminal end of the connecting line.
  • a rupture disc which is arranged in the region of the respective extinguishing nozzles associated terminal end of the connecting line.
  • valves In addition, the reliability of the device is significantly increased by dispensing with valves and possibly necessary control of them.
  • the rupture disks used according to the invention can not settle. Since the use of rupture discs can be dispensed with a control, there is no longer a danger that this fails.
  • the nozzle inserts used in a device according to the invention generate an extinguishing mist.
  • an extinguishing mist With such an extinguishing mist, a fire with a small amount of extinguishing agent can be effectively combat.
  • the pressures required for the generation of such a mist of the Lösch conductedids are up to 300 bar.
  • the static pressure of the extinguishing fluid is equal to the ambient pressure. In this way, the effort required to maintain the static pressure, which is always necessary in the case of the known filled systems, can be avoided.
  • the quiescent pressure of the quenching fluid may be higher than the ambient pressure but lower than the bursting pressure.
  • a pressure drop and thus a leak in the filled supply line can be detected, for example, via a pressure sensor arranged in the filled supply line, which detects the pressure drop in the supply line associated with a leakage.
  • the inflow of extinguishing fluid to more than one extinguishing nozzle is simultaneously closed by a rupture disk in the idle state. This is particularly useful when extinguishing nozzles in case of fire necessarily need to be applied simultaneously with extinguishing fluid to protect a particular object or a specific area section. If necessary, the extinguishing nozzles can each be connected via an intermediate line to the branch piece in order to ensure a flat or spatial coverage of a particular area.
  • the device 1 for extinguishing a fire has an extinguishing fluid supply 2, which comprises not shown in detail fluid container and a high-pressure pump.
  • the extinguishing fluid supply 2 may also be equipped with one or more pressure accumulators, in which extinguishing fluid is stored under pressure.
  • the extinguishing fluid can be stored under ambient pressure and pressurized only in the case of activation from one or more pressure accumulators.
  • the extinguishing fluid supply 2 is controlled by a control device 3, which receives the fire alarm signal of a fire alarm 4.
  • Fig. 1 are connected via a main supply line 6 and each separate from the main supply line 6 branching supply lines 7,8,9 extinguishing nozzles 10,11,12 to the extinguishing fluid supply 2.
  • Fig. 2 is a first group 13 of three extinguishing nozzles 14 connected via a branch piece 15 to a outgoing from a main supply line 16 supply line 17. Furthermore, a single extinguishing nozzle 18 is connected directly to a supply line 19, which also goes from the main supply line 16. In a third group 20 of three extinguishing nozzles 21, the extinguishing nozzles 21 are finally connected via intermediate lines 22 and a branch piece 23 to a third, outgoing from the main supply line 16 supply line 24.
  • each of the extinguishing nozzles 10,11,12,14,18,21 is constructed as in Fig. 3
  • all extinguishing nozzles 10,11,12,14,18,21 open nozzle inserts 25, which are connected via formed in the respective extinguishing nozzle channels 26 with an inlet bore 27 of the extinguishing nozzle.
  • the inflow bore 27 opens onto the end face of a shoulder 29, which is provided with an external thread 30.
  • the nozzle inserts 25 generate upon exposure to an extinguishing fluid under high pressure of up to 300 bar a finely distributing extinguishing mist.
  • the external thread 30 of paragraph 29 of the extinguishing nozzles 10,11,12,18 is screwed into a corresponding internal thread at the respective terminal end 7a, 8a, 9a of the supply lines 7,8,9 and 19, while the external thread 30 of paragraphs 29 of the extinguishing nozzles 14th are each screwed into a not shown corresponding internal thread at the respective terminal ends 15a of the branch piece 15. Accordingly, the extinguishing nozzles 21 are connected to the terminal end of their associated intermediate line 22.
  • the main supply line 6 ( Fig. 1 ) or 16 ( Fig. 2 ) and outgoing supply lines 7,8,9 ( Fig. 1 ) or 17,19,24 ( Fig. 2 ) with extinguishing liquid, for example water, filled. It prevails in the from the main supply line 6 and 16 and the outgoing from her supply lines 7,8,9 and 17,19,24 formed, filled with extinguishing fluid piping system a static pressure that corresponds approximately to the ambient pressure.
  • the fire guard 4 monitors a room, a certain area or a specific object on the emergence of a fire. With the emergence of a fire, the fire alarm 4 gives a fire alarm signal to the controller 3. This then causes the extinguishing fluid supply 2, the main supply line 6 and 16 and the respective outgoing supply lines 7,8,9 and 17,19,24 with Pressed extinguishing fluid applied.
  • each rupture disc can be arranged immediately in front of the individual extinguishing nozzles 15, and 21, respectively.
  • the embodiment described here is always useful when the distance between the extinguishing nozzles 14,21 each short compared to the other line lengths, so that on the one hand minimizes the cost of mounting the rupture disc and on the other hand, the time for filling the at rest empty branch pieces and intermediate lines is short.

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  • 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)
  • Amplifiers (AREA)
  • Fire-Extinguishing Compositions (AREA)
  • Fireproofing Substances (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Fire Alarms (AREA)
  • Alarm Systems (AREA)

Abstract

With a device for extinguishing a fire, with extinguishing nozzles ( 10 ) arranged in areas of a structure, and of a building or a ship in particular, said extinguishing nozzles being connected in each case to a connection end ( 7 a) of a supply line ( 7 ) filled with extinguishing fluid, said supply line connecting the extinguishing nozzles ( 10 ) to an extinguishing fluid supply device, which in the event of a fire imposes on the supply line ( 7 ) extinguishing fluid under pressure, simple and economical means allow for a reliable response, in that a bursting disk ( 33 ) is arranged in the area of the connection end ( 7 a) of the supply line ( 7 ), which bursts at the attaining of a predetermined bursting pressure of the extinguishing fluid in the supply line ( 7 ), so that extinguishing fluid flows unimpeded into the extinguishing nozzle ( 10 ), and in which the supply line ( 7 ) in the position of rest is filled with extinguishing fluid at a pressure of rest which is lower than the bursting pressure.

Description

Die Erfindung betrifft eine Vorrichtung zum Löschen eines Feuers mit in Räumen eines Bauwerks, insbesondere eines Gebäudes oder eines Schiffes.The invention relates to a device for extinguishing a fire with in rooms of a building, in particular a building or a ship.

Derartige Systeme sind zur Brandbekämpfung in Gebäuden bekannt. Die Versorgungsleitung ist zumindest teilweise auch in Ruhestellung mit unter Druck stehendem Löschfluid gefüllt. Die Versorgungsleitung oder die an die Versorgungsleitung angeschlossenen Löschdüsen sind mit Ventilen ausgestattet, die ein ungewolltes Entweichen von Löschfluid in der Ruhestellung vermeiden. Die Ventile öffnen im Fall eines Brandes selbsttätig oder durch eine Ansteuerung ferngesteuert, so daß Löschfluid aus den Löschdüsen ausgebracht werden kann.Such systems are known for fire fighting in buildings. The supply line is at least partially filled in the rest position with pressurized extinguishing fluid. The supply line or the extinguishing nozzles connected to the supply line are equipped with valves which prevent unwanted escape of extinguishing fluid in the rest position. The valves open in the event of fire automatically or remotely controlled by a control, so that extinguishing fluid can be discharged from the extinguishing nozzles.

Die Löschdüsen können bei diesen Systemen derart ausgebildet sein, daß die Löschdüsen mit offenen Düseneinsätzen bestückt sind, die über in den Löschdüsen ausgebildete Kanäle mit der Versorgungsleitung verbunden sein können. Diese Düseneinsätze können derart ausgestaltet sein, daß sie bei Beaufschlagung mit einem unter hohem Druck stehenden Löschfluid einen Löschnebel erzeugen.The extinguishing nozzles may be formed in these systems such that the extinguishing nozzles are equipped with open nozzle inserts, which may be connected via channels formed in the extinguishing nozzles with the supply line. These nozzle inserts can be designed such that they generate a extinguishing mist when exposed to a high pressure extinguishing fluid.

Vorteilhaft bei derartigen gefüllten System ist, daß das Volumen der gefüllten Versorgungsleitung zur Bevorratung des Löschfluids genutzt wird. Auf diese Weise kann insbesondere bei solchen Systemen, bei denen die Löschfluidversorgung über gespeicherte Druckenergie erfolgt, die zur Verfügung stehende Speicherenergie und die Kapazität der Druckbehälter optimal genutzt werden. Dies ermöglicht es, kleinere Druckbehälter zu verwenden, wodurch eine Kosten- und Platzersparnis erzielt wird.An advantage of such a filled system is that the volume of the filled supply line is used for storing the extinguishing fluid. In this way, the available storage energy and the capacity of the pressure vessels can be optimally utilized, in particular in systems in which the extinguishing fluid supply takes place via stored pressure energy. This makes it possible to use smaller pressure vessels, whereby a cost and space savings is achieved.

Im Vergleich zu nicht gefüllten Systemen, bei denen die Versorgungsleitung im Ruhezustand leer ist und erst im Brandfall von der Löschfluidversorgung mit Löschfluid gefüllt wird, bieten die gefüllten Systeme den Vorteil, daß die bei den nicht gefüllten Systemen erforderliche Zeit für das Befüllen der Versorgungsleitung entfällt. Bei gefüllten Systemen tritt das Löschfluid direkt nach Öffnen der Ventile aus, wodurch die Ansprechzeit des Systems auf eine Brandmeldung verkürzt wird und verhindert wird, daß sich der Brand weiter ausbreitet.Compared to unfilled systems in which the supply line is idle at rest and is filled in the event of fire by the extinguishing fluid supply with extinguishing fluid, the filled systems offer the advantage that the time required for the unfilled systems for filling the supply line deleted. In filled systems, the extinguishing fluid exits immediately after opening the valves, reducing the response time of the system to fire detection and preventing the fire from spreading further.

Schließlich können bei mit unter Druck stehenden Löschfluid gefüllten Systemen weniger leistungsfähige und weniger aufwendige Pumpen und Druckspeicher im Vergleich zu den nicht gefüllten Systemen verwendet werden, die im Brandfall nur mehr den in der Versorgungsleitung herrschenden Druck auf den zum Löschen notwendigen Druck erhöhen. Dieser Vorteil macht sich insbesondere bei Systemen bemerkbar, bei denen Löschfluid unter hohem Druck ausgebracht wird, um einen Löschnebel zu erzeugen.Finally, in systems filled with pressurized extinguishing fluid, less powerful and less expensive pumps and pressure accumulators can be used in comparison to the unfilled systems, which in case of fire only increase the pressure prevailing in the supply line to the pressure necessary for extinction. This advantage is particularly noticeable in systems in which quenching fluid is applied under high pressure to produce a quenching mist.

Nachteilig bei den oben beschriebenen Systemen ist jedoch der beträchtliche Herstellungs-, Montage- und Wartungsaufwand für die bei diesen Systemen verwendete Ventileinrichtungen und die möglicherweise notwendige Ansteuerung der Ventile. Zusätzlich besteht die Gefahr, daß die Ventile im Brandfall versagen, so daß eine Bekämpfung des Brandes unmöglich wird.A disadvantage of the systems described above, however, is the considerable manufacturing, assembly and maintenance costs for the valve devices used in these systems and the possibly necessary control of the valves. In addition, there is a risk that the valves fail in case of fire, so that a fight against the fire is impossible.

Das Dokument "Fire Protection Handbook", 18. Auflage, Cote, Linville et. al. zeigt ein vorgespanntes Brandbekämpfungssystem bei dem die Versorgungsleitung mit Löschfluid gefüllt ist. Hierbei wird das Löschfluid bis an die Löschdüse herangeführt. Beschrieben ist eine Löschdüse mit einer Kappe sowie ein Berstscheibenhalter.The document "Fire Protection Handbook", 18th edition, Cote, Linville et. al. shows a biased fire fighting system in which the supply line is filled with extinguishing fluid. Here, the extinguishing fluid is brought up to the extinguishing nozzle. Described is an extinguishing nozzle with a cap and a bursting disk holder.

Die Aufgabe der Erfindung besteht darin, eine Vorrichtung der eingangs genannten Art mit einfachen und kostengünstigen Mitteln zu schaffen, die ein sicheres Ansprechen ermöglicht.The object of the invention is to provide a device of the type mentioned above with simple and inexpensive means that enables a safe response.

Diese Aufgabe wird gemäß der Erfindung, durch eine Vorrichtung nach Anspruch 1 oder 4 gelöst.This object is achieved according to the invention by a device according to claim 1 or 4.

Bei einer erfindungsgemäßen Vorrichtung sind die Versorgungsleitungen mit Löschfluid befüllt. Der Zufluß von Löschfluid in die an sich offenen Löschdüsen wird dabei im Ruhezustand durch eine Berstscheibe verschlossen, welche im Bereich des den jeweiligen Löschdüsen zugeordneten Anschlußendes der Verbindungsleitung angeordnet ist. Auf diese Weise nutzt die Erfindung durch den Einsatz einer einfachen, kostengünstigen Berstscheibe die Vorteile eines gefüllten Systems zur Brandbekämpfung und ermöglicht zudem ein sicheres Ansprechen der Vorrichtung. So weist ein erfindungsgemäß ausgebildetes System zur Brandbekämpfung kurze Reaktionszeiten auf, da sich Löschfluid schon im Ruhezustand in unmittelbarer Nähe der Löschdüsen befindet und die von der Flüssigkeit zurückzulegende Strecke bis zu den Düsen kurz ist.In a device according to the invention, the supply lines are filled with extinguishing fluid. The inflow of extinguishing fluid into the per se open extinguishing nozzles is closed in the rest state by a rupture disc, which is arranged in the region of the respective extinguishing nozzles associated terminal end of the connecting line. In this way, the invention utilizes the advantages of a filled system for fire fighting by the use of a simple, inexpensive rupture disc and also allows a safe response of the device. Thus, a fire fighting system designed according to the invention has short reaction times, since extinguishing fluid is already in the quiescent state in the immediate vicinity of the extinguishing nozzles and the distance traveled by the liquid to the nozzles is short.

Zudem wird durch den Verzicht auf Ventile und die möglicherweise notwendige Ansteuerung dieser die Zuverlässigkeit der Vorrichtung deutlich erhöht. Im Gegensatz zu Ventilen können sich die erfindungsgemäß eingesetzten Berstscheiben nicht festsetzen. Da bei der Verwendung von Berstscheiben auch auf eine Ansteuerung verzichtet werden kann, besteht auch keine Gefahr mehr, daß diese versagt.In addition, the reliability of the device is significantly increased by dispensing with valves and possibly necessary control of them. In contrast to valves, the rupture disks used according to the invention can not settle. Since the use of rupture discs can be dispensed with a control, there is no longer a danger that this fails.

Daneben ist der Einsatz von Berstscheiben in der Regel kostengünstiger als der von Ventilen.In addition, the use of rupture discs is usually less expensive than that of valves.

Die in einer erfindungsgemäßen Vorrichtung eingesetzten Düseneinsätze erzeugen einen Löschnebel. Mit einem solchen Löschnebel läßt sich ein Brand mit einer geringen Löschmittelmenge wirkungsvoll bekämpfen. Die für die Erzeugung eines solchen Nebels benötigten Drücke des Löschluids liegen bei bis zu 300 bar.The nozzle inserts used in a device according to the invention generate an extinguishing mist. With such an extinguishing mist, a fire with a small amount of extinguishing agent can be effectively combat. The pressures required for the generation of such a mist of the Löschließids are up to 300 bar.

Bevorzugt ist der Ruhedruck des Löschfluids gleich dem Umgebungsdruck. Auf diese Weise kann der bei den bekannten gefüllten Systemen stets erforderliche Aufwand für die Aufrechterhaltung des Ruhedrucks vermieden werden.Preferably, the static pressure of the extinguishing fluid is equal to the ambient pressure. In this way, the effort required to maintain the static pressure, which is always necessary in the case of the known filled systems, can be avoided.

Alternativ kann zur Überwachung von Leckagen der Ruhedruck des Löschfluids höher als der Umgebungsdruck aber niedriger als der Berstdruck sein. Auf diese Weise kann ein Druckabfall und damit eine Leckage in der gefüllten Versorgungsleitung beispielsweise über einen in der gefüllten Versorgungsleitung angeordneten Drucksensor detektiert werden, der den mit einer Leckage einhergehenden Druckabfall in der Versorgungsleitung feststellt.Alternatively, to monitor leaks, the quiescent pressure of the quenching fluid may be higher than the ambient pressure but lower than the bursting pressure. In this way, a pressure drop and thus a leak in the filled supply line can be detected, for example, via a pressure sensor arranged in the filled supply line, which detects the pressure drop in the supply line associated with a leakage.

In Abhängigkeit von den jeweiligen örtlichen Bedingungen kann es zudem zweckmäßig sein, wenn an das Anschlußende der Versorgungsleitung über ein Verzweigungsstück mehrere Löschdüsen angeschlossen sind. Bei dieser Ausgestaltung der Erfindung wird im Ruhezustand durch eine Berstscheibe der Zufluß von Löschfluid zu mehr als einer Löschdüse gleichzeitig verschlossen. Dies ist besonders dann zweckmäßig, wenn Löschdüsen im Brandfall notwendigerweise zum Schutz eines bestimmten Objekts oder eines bestimmten Flächenabschnitts gleichzeitig mit Löschfluid beaufschlagt werden müssen. Erforderlichenfalls können dabei die Löschdüsen jeweils über eine Zwischenleitung an das Verzweigungsstück angeschlossen sein, um eine flächige bzw. räumliche Abdeckung eines bestimmten Bereichs gewährleisten zu können.Depending on the local conditions, it may also be appropriate if connected to the terminal end of the supply line via a branch piece a plurality of extinguishing nozzles. In this embodiment of the invention, the inflow of extinguishing fluid to more than one extinguishing nozzle is simultaneously closed by a rupture disk in the idle state. This is particularly useful when extinguishing nozzles in case of fire necessarily need to be applied simultaneously with extinguishing fluid to protect a particular object or a specific area section. If necessary, the extinguishing nozzles can each be connected via an intermediate line to the branch piece in order to ensure a flat or spatial coverage of a particular area.

Nachfolgend wird die Erfindung anhand einer ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. Es zeigen:

Fig. 1
eine Vorrichtung zum Löschen eines Feuers in schematischer Darstellung;
Fig. 2
eine Variante der Vorrichtung gemäß Fig. 1;
Fig. 3
eine in einer der Vorrichtungen gemäß der Figuren 1 oder 2 verwendete Löschdüse in einer teilweise aufgebrochenen seitlichen Ansicht.
The invention will be explained in more detail with reference to a drawing illustrating an exemplary embodiment. Show it:
Fig. 1
a device for extinguishing a fire in a schematic representation;
Fig. 2
a variant of the device according to Fig. 1 ;
Fig. 3
one in one of the devices according to the FIGS. 1 or 2 used extinguishing nozzle in a partially broken side view.

Die Vorrichtung 1 zum Löschen eines Brandes weist eine Löschfluidversorgung 2 auf, welche im einzelnen nicht gezeigte Fluidbehälter und eine Hochdruckpumpe umfaßt. Alternativ kann die Löschfluidversorgung 2 auch mit einem oder mehreren Druckspeichern ausgestattet sein, in welchen Löschfluid unter Druck gespeichert ist. Weiter kann das Löschfluid unter Umgebungsdruck bevorratet und nur im Aktivierungsfall aus einem oder mehreren Druckspeichern mit Druck beaufschlagt werden. Die Löschfluidversorgung 2 wird von einer Steuereinrichtung 3 gesteuert, welche das Brandmeldesignal eines Brandwächters 4 empfängt.The device 1 for extinguishing a fire has an extinguishing fluid supply 2, which comprises not shown in detail fluid container and a high-pressure pump. Alternatively, the extinguishing fluid supply 2 may also be equipped with one or more pressure accumulators, in which extinguishing fluid is stored under pressure. Furthermore, the extinguishing fluid can be stored under ambient pressure and pressurized only in the case of activation from one or more pressure accumulators. The extinguishing fluid supply 2 is controlled by a control device 3, which receives the fire alarm signal of a fire alarm 4.

Beim Ausführungsbeispiel gemäß Fig. 1 sind über eine Hauptversorgungsleitung 6 und jeweils eigene, von der Hauptversorgungsleitung 6 abzweigende Versorgungsleitungen 7,8,9 Löschdüsen 10,11,12 an die Löschfluidversorgung 2 angeschlossen.According to the embodiment Fig. 1 are connected via a main supply line 6 and each separate from the main supply line 6 branching supply lines 7,8,9 extinguishing nozzles 10,11,12 to the extinguishing fluid supply 2.

Beim Ausführungsbeispiel gemäß Fig. 2 ist eine erste Gruppe 13 von drei Löschdüsen 14 über ein Verzweigungsstück 15 an eine von einer Hauptversorgungsleitung 16 abgehende Versorgungsleitung 17 angeschlossen. Des weiteren ist eine einzelne Löschdüse 18 unmittelbar an eine Versorgungsleitung 19 angeschlossen, die ebenfalls von der Hauptversorgungsleitung 16 abgeht. Bei einer dritten Gruppe 20 von drei Löschdüsen 21 sind die Löschdüsen 21 schließlich über Zwischenleitungen 22 und ein Verzweigungsstück 23 an eine dritte, von der Hauptversorgungsleitung 16 abgehende Versorgungsleitung 24 angeschlossen.According to the embodiment Fig. 2 is a first group 13 of three extinguishing nozzles 14 connected via a branch piece 15 to a outgoing from a main supply line 16 supply line 17. Furthermore, a single extinguishing nozzle 18 is connected directly to a supply line 19, which also goes from the main supply line 16. In a third group 20 of three extinguishing nozzles 21, the extinguishing nozzles 21 are finally connected via intermediate lines 22 and a branch piece 23 to a third, outgoing from the main supply line 16 supply line 24.

Jede der Löschdüsen 10,11,12,14,18,21 ist aufgebaut wie die in Fig. 3 beispielhaft dargestellte Löschdüse 10. So weisen alle Löschdüsen 10,11,12,14,18,21 offene Düseneinsätze 25 auf, welche über in der jeweiligen Löschdüse ausgebildete Kanäle 26 mit einer Einströmbohrung 27 der Löschdüse verbunden sind. Die Einströmbohrung 27 mündet auf der Stirnfläche eines Absatzes 29, welcher mit einem Außengewinde 30 versehen ist. Die Düseneinsätze 25 erzeugen bei Beaufschlagung mit einem Löschfluid unter hohem Druck von bis zu 300 bar einen sich fein verteilenden Löschnebel.Each of the extinguishing nozzles 10,11,12,14,18,21 is constructed as in Fig. 3 Thus, all extinguishing nozzles 10,11,12,14,18,21 open nozzle inserts 25, which are connected via formed in the respective extinguishing nozzle channels 26 with an inlet bore 27 of the extinguishing nozzle. The inflow bore 27 opens onto the end face of a shoulder 29, which is provided with an external thread 30. The nozzle inserts 25 generate upon exposure to an extinguishing fluid under high pressure of up to 300 bar a finely distributing extinguishing mist.

Das Außengewinde 30 des Absatzes 29 der Löschdüsen 10,11,12,18 ist in ein entsprechendes Innengewinde am jeweiligen Anschlußende 7a,8a,9a der Versorgungsleitungen 7,8,9 bzw. 19 eingeschraubt, während das Außengewinde 30 der Absätze 29 der Löschdüsen 14 jeweils in ein hier nicht dargestelltes entsprechendes Innengewinde an den jeweiligen Anschlußenden 15a des Verzweigungsstückes 15 eingeschraubt sind. Entsprechend sind die Löschdüsen 21 mit dem Anschlußende der ihnen zugeordneten Zwischenleitung 22 verbunden.The external thread 30 of paragraph 29 of the extinguishing nozzles 10,11,12,18 is screwed into a corresponding internal thread at the respective terminal end 7a, 8a, 9a of the supply lines 7,8,9 and 19, while the external thread 30 of paragraphs 29 of the extinguishing nozzles 14th are each screwed into a not shown corresponding internal thread at the respective terminal ends 15a of the branch piece 15. Accordingly, the extinguishing nozzles 21 are connected to the terminal end of their associated intermediate line 22.

Bei den Löschdüsen 10,11,12,18 ist, wie in Fig. 3 dargestellt, im Ruhezustand der Vorrichtung 1 die Eingangsöffnung 27a der Einströmbohrung 27 mittels einer Berstscheibe 33 verschlossen, die im Anschlußende 7a der jeweiligen Versorgungsleitung 7,8,9 bzw. 19 sitzt. Eine entsprechende, hier nicht gezeigte Berstscheibe sitzt im jeweiligen Anschlußende 17a bzw. 24a der Versorgungsleitung 17 und 24 und hält im Ruhezustand der Vorrichtung 1 den Zufluß des Verzweigungsstücks 15 bzw. des Verzweigungsstücks 23 verschlossen.In the extinguishing nozzles 10,11,12,18 is, as in Fig. 3 represented, in the resting state of the device 1, the inlet opening 27a of the inflow bore 27 closed by means of a rupture disk 33, which sits in the connection end 7a of the respective supply line 7,8,9 and 19 respectively. A corresponding rupture disk, not shown here, is seated in the respective connection end 17a or 24a of the supply line 17 and 24 and, in the state of rest of the device 1, keeps the inflow of the branching piece 15 or of the branching piece 23 closed.

In diesem Ruhezustand der Vorrichtung 1 sind die Hauptversorgungsleitung 6 (Fig. 1) bzw. 16 (Fig. 2) und von ihr abgehende Versorgungsleitungen 7,8,9 (Fig. 1) bzw. 17,19,24 (Fig. 2) mit Löschflüssigkeit, beispielsweise Wasser, gefüllt. Dabei herrscht in dem aus der Hauptversorgungsleitung 6 bzw. 16 und den von ihr abgehenden Versorgungsleitungen 7,8,9 bzw. 17,19,24 gebildeten, mit Löschfluid befüllten Rohrleitungssystem ein Ruhedruck, der etwa dem Umgebungsdruck entspricht.In this idle state of the device 1, the main supply line 6 ( Fig. 1 ) or 16 ( Fig. 2 ) and outgoing supply lines 7,8,9 ( Fig. 1 ) or 17,19,24 ( Fig. 2 ) with extinguishing liquid, for example water, filled. It prevails in the from the main supply line 6 and 16 and the outgoing from her supply lines 7,8,9 and 17,19,24 formed, filled with extinguishing fluid piping system a static pressure that corresponds approximately to the ambient pressure.

Der Brandwächter 4 überwacht einen Raum, eine bestimmte Fläche oder ein bestimmtes Objekt auf die Entstehung eines Feuers. Mit Entstehung eines Brandes gibt der Brandwächter 4 ein Brandmeldesignal an die Steuereinrichtung 3. Diese veranlaßt daraufhin, daß die Löschfluidversorgung 2 die Hauptversorgungsleitung 6 bzw. 16 und die von ihr jeweils abgehenden Versorgungsleitungen 7,8,9 bzw. 17,19,24 mit unter Druck stehendem Löschfluid beaufschlagt.The fire guard 4 monitors a room, a certain area or a specific object on the emergence of a fire. With the emergence of a fire, the fire alarm 4 gives a fire alarm signal to the controller 3. This then causes the extinguishing fluid supply 2, the main supply line 6 and 16 and the respective outgoing supply lines 7,8,9 and 17,19,24 with Pressed extinguishing fluid applied.

Sobald in dem an der jeweiligen Berstscheibe 33 anstehenden Löschfluid der Druck über den Berstdruck der betreffenden Berstscheibe 33 gestiegen ist, birst die betreffende Berstscheibe 33. Nach dem Bersten der jeweiligen Berstscheibe 33 strömt Löschfluid ungehindert in die Löschdüsen 10,11,12,18 bzw. wird ebenso ungehindert über die Verzweigungsstücke 15,23 auf die Löschdüsen 14 bzw. 21 aufgeteilt. Das derart ungehindert in die Löschdüsen 10,11,12,14,18,21 einschießende Löschfluid tritt als Löschnebel aus den Düseneinsätzen 25 der Löschdüsen aus.As soon as the pressure above the bursting pressure of the rupture disk 33 has risen in the extinguishing fluid present at the respective rupture disk 33, the rupture disk 33 in question bursts. After rupture of the respective rupture disk 33, extinguishing fluid flows unhindered into the extinguishing nozzles 10, 11, 12, 18 or is equally unhindered over the branch pieces 15,23 divided on the extinguishing nozzles 14 and 21 respectively. That's unhindered In the extinguishing nozzles 10,11,12,14,18,21 einschießende extinguishing fluid exits as extinguishing mist from the nozzle inserts 25 of the extinguishing nozzles.

Es versteht sich, daß alternativ zu den voranstehend erläuterten Ausführungsbeispielen auch bei den Löschdüsen 14,21 der Gruppen 13 und 15 im Ausführungsbeispiel gemäß Fig. 2 jeweils eine Berstscheibe unmittelbar vor den einzelnen Löschdüsen 15, bzw. 21 angeordnet werden kann. Die hier beschriebene Ausführungsform ist immer dann zweckmäßig, wenn der Abstand zwischen den Löschdüsen 14,21 jeweils kurz im Vergleich zu den übrigen Leitungslängen ist, so daß einerseits der Aufwand für die Montage der Berstscheibe minimiert und andererseits dennoch die Zeit für das Füllen der im Ruhezustand leeren Verzweigungstücke und Zwischenleitungen kurz ist.It is understood that as an alternative to the above-described embodiments also in the extinguishing nozzles 14,21 of the groups 13 and 15 in the embodiment according to Fig. 2 each rupture disc can be arranged immediately in front of the individual extinguishing nozzles 15, and 21, respectively. The embodiment described here is always useful when the distance between the extinguishing nozzles 14,21 each short compared to the other line lengths, so that on the one hand minimizes the cost of mounting the rupture disc and on the other hand, the time for filling the at rest empty branch pieces and intermediate lines is short.

BEZUGSZEICHENLISTELIST OF REFERENCE NUMBERS

11
Vorrichtung zum LöschenDevice for deleting
22
LöschfluidversorgungExtinguishing fluid supply
33
Steuereinrichtungcontrol device
44
Brandwächtersfire watchman
66
HauptversorgungsleitungMain supply line
7,8,97,8,9
Versorgungsleitungensupply lines
7a,8a,9a7a, 8a, 9a
Anschlußenden der Versorgungsleitung 7,8,9Connecting ends of the supply line 7,8,9
10,11,1210,11,12
Löschdüsenextinguishing nozzles
1313
Gruppe von drei Löschdüsen 14Group of three extinguishing nozzles 14
1414
Löschdüseextinguishing nozzle
1515
Verzweigungsstückjunction box
15a15a
Anschlußenden des Verzweigungsstückes 15Terminal ends of the branch piece 15
1616
HauptversorgungsleitungMain supply line
1717
Versorgungsleitungsupply line
17a17a
Anschlußende der Versorgungsleitung 17Connection end of the supply line 17
1818
Löschdüseextinguishing nozzle
1919
Versorgungsleitungsupply line
2020
Gruppe von drei Löschdüsen 21Group of three extinguishing nozzles 21
2121
Löschdüseextinguishing nozzle
2222
Zwischenleitungenbetween lines
2323
Verzweigungsstückjunction box
2424
Versorgungsleitungsupply line
24a24a
Anschlußenden der Versorgungsleitung 24Terminal ends of the supply line 24
2525
offene Düseneinsätzeopen nozzle inserts
2626
Kanälechannels
2727
Einströmbohrunginflow bore
27a27a
Eingangsöffnung der Einströmbohrung 27Entrance opening of the inflow bore 27th
2929
Absatzparagraph
3030
Außengewindeexternal thread
3333
Berstscheiberupture disc

Claims (5)

  1. A device for extinguishing a fire with extinguishing nozzles (10, 11, 12, 18) arranged in rooms of a construction, especially a building or a ship, said extinguishing nozzles each being connected to a connection end (7a,8a, 9a) of a supply line (6, 7, 8, 9, 19) filled with extinguishing fluid connecting the extinguishing nozzles (10, 11, 12, 18) to an extinguishing fluid supply device (2), said fluid supply device forcing the extinguishing fluid under pressure into the supply line (6, 16, 7, 8, 9, 17, 19) in the event of fire and with rupture discs, wherein the supply line (6, 7, 8, 9, 19), when the device (1) is in the inoperative condition, is filled with extinguishing fluid at a resting pressure which is lower than a rupture pressure of the rupture disc,
    characterised in that in the inoperative position an inflow opening (27a) of an inflow borehole (27) of the extinguishing nozzles, closed off in each case by means of one of the rupture discs which can be disposed immediately at the connection end of the supply line upstream of the inflow borehole, said rupture disc bursting when the extinguishing fluid in the supply line (6, 7, 8, 9, 19) reaches a predetermined rupture pressure, so that the extinguishing fluid flows unimpeded into the extinguishing nozzles (10, 11, 12, 18), wherein the per se open extinguishing nozzles have plural open nozzle inserts which generate an extinguishing mist.
  2. Device according to claim 1, characterised in that the resting pressure is equal to the ambient pressure.
  3. Device according to claim 1 to 2, characterised in that the resting pressure is greater than the ambient pressure.
  4. Device for extinguishing a fire with extinguishing nozzles disposed in rooms of a construction, especially a building or a ship, said nozzles (21) being connected with a supply line (17,24) filled with an extinguishing fluid and linking the extinguishing nozzles (14, 21) with an extinguishing fluid supply (2), which, in case of fire, forces extinguishing fluid under pressure into the supply line (24), and with a rupture disc, whereby the supply line (24), when the device (1) is in the inoperative position, is filled with extinguishing fluid at resting pressure, which is lower than the rupture pressure of the rupture disc, characterised in that the device has a branching element to which extinguishing nozzles are attached and to which one connection end (17a, 24a) of the supply line can be connected, and that in the inoperative position, an inflow opening of an in flow borehole of the branching element can be closed off by means of the rupture disc (33) which can be disposed at the connection end upstream of the inflow borehole, so that when the extinguishing fluid in the supply line (17, 24) reaches a pre-determined rupture pressure, the rupture disc bursts, so that extinguishing fluid flows unimpeded into the extinguishing nozzles (14, 21), wherein the per se open extinguishing nozzles have plural open nozzle inserts, which generate an extinguishing mist.
  5. Device according to claim 4, characterised in that the extinguishing nozzles (21) are in each case connected via an intermediate line (22) to the branching element (23).
EP00979481A 1999-10-07 2000-09-30 Device for extinguishing a fire Expired - Lifetime EP1224014B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20023800U DE20023800U1 (en) 1999-10-07 2000-09-30 Fire-fighting device has nozzles installed in rooms of building or ship, connected at one end to supply conduit filled with extinguishing fluid

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19948324 1999-10-07
DE19948324A DE19948324C2 (en) 1999-10-07 1999-10-07 Fire extinguishing device
PCT/EP2000/009604 WO2001024881A1 (en) 1999-10-07 2000-09-30 Device for extinguishing a fire

Publications (3)

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EP1224014A1 EP1224014A1 (en) 2002-07-24
EP1224014B1 EP1224014B1 (en) 2007-03-14
EP1224014B2 true EP1224014B2 (en) 2011-11-02

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US (1) US7032681B1 (en)
EP (1) EP1224014B2 (en)
JP (1) JP2003511114A (en)
KR (1) KR100720188B1 (en)
CN (1) CN1191874C (en)
AT (1) ATE356652T1 (en)
AU (1) AU1695201A (en)
DE (2) DE19948324C2 (en)
ES (1) ES2283330T3 (en)
HK (1) HK1050150B (en)
TW (1) TW585115U (en)
WO (1) WO2001024881A1 (en)

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Also Published As

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HK1050150B (en) 2005-08-05
EP1224014B1 (en) 2007-03-14
KR100720188B1 (en) 2007-05-22
DE19948324C2 (en) 2001-08-09
DE19948324A1 (en) 2001-04-19
CN1378474A (en) 2002-11-06
ATE356652T1 (en) 2007-04-15
EP1224014A1 (en) 2002-07-24
CN1191874C (en) 2005-03-09
DE50014166D1 (en) 2007-04-26
AU1695201A (en) 2001-05-10
US7032681B1 (en) 2006-04-25
HK1050150A1 (en) 2003-06-13
TW585115U (en) 2004-04-21
JP2003511114A (en) 2003-03-25
KR20020075858A (en) 2002-10-07
WO2001024881A1 (en) 2001-04-12
ES2283330T3 (en) 2007-11-01

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