EP2015851B1 - Frost resistant container for extinguishing fluid - Google Patents

Frost resistant container for extinguishing fluid Download PDF

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Publication number
EP2015851B1
EP2015851B1 EP06807657A EP06807657A EP2015851B1 EP 2015851 B1 EP2015851 B1 EP 2015851B1 EP 06807657 A EP06807657 A EP 06807657A EP 06807657 A EP06807657 A EP 06807657A EP 2015851 B1 EP2015851 B1 EP 2015851B1
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EP
European Patent Office
Prior art keywords
extinguishing fluid
pipe
connection piece
extinguishing
closure device
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EP06807657A
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German (de)
French (fr)
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EP2015851A1 (en
Inventor
Dirk Sprakel
Max Lakkonen
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Fogtec Brandschutz GmbH and Co KG
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Fogtec Brandschutz GmbH and Co KG
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Application filed by Fogtec Brandschutz GmbH and Co KG filed Critical Fogtec Brandschutz GmbH and Co KG
Priority to PL06807657T priority Critical patent/PL2015851T3/en
Publication of EP2015851A1 publication Critical patent/EP2015851A1/en
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
    • 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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/002—Fire prevention, containment or extinguishing specially adapted for particular objects or places for warehouses, storage areas or other installations for storing goods
    • A62C3/004—Fire prevention, containment or extinguishing specially adapted for particular objects or places for warehouses, storage areas or other installations for storing goods for freezing warehouses and storages
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
    • A62C35/023—Permanently-installed equipment with containers for delivering the extinguishing substance the extinguishing material being expelled by compressed gas, taken from storage tanks, or by generating a pressure gas
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/09—Component parts or accessories
    • E03B7/10—Devices preventing bursting of pipes by freezing

Definitions

  • the invention relates to a closure device for extinguishing fluid-storing pressure bottles having a pressure bottle and an adapter piece for connecting a dip tube arranged in the pressure bottle to a connection piece arranged outside the pressure bottle.
  • Closing devices for extinguishing fluid-storing pressure bottles are for example from the EP 0 138 195 A2 known.
  • This device is a self-triggering extinguishing device for fire-risk devices.
  • a small pressure bottle is mounted on a device and via a blowpipe, the extinguishing fluid is discharged at a suitable location.
  • the blowpipe is closed at its end by a material which dissolves or liquefies when exceeding a predetermined temperature. This leads to a self-triggering.
  • the blowpipe is filled at rest with extinguishing fluid.
  • the extinguishing fluid is directly at the outlet. If the extinguishing fluid expands, the end piece of the blowpipe can be destroyed and extinguishing fluid could escape unintentionally.
  • thermoelastic plastic prevents material damage such as embrittlement or cracking caused by expansion stresses.
  • thermo-elastic plastic is on the one hand in the high cost, and on the other hand in the lack of fire resistance of these materials. In case of fire, it can happen that the pipes melt due to the enormous heat of the fire, and a good fire fighting is no longer possible.
  • the invention proposes that the dip tube and the connector are shaped such that the connector is partially filled with extinguishing fluid at rest, that the connector has a riser, so in that the riser pipe is at least partially above the level of the extinguishing fluid, and in that the riser pipe comprises closure means, in such a way, between the Closing means and the extinguishing fluid, a gas space is formed.
  • the closure means may be formed as a rupture disk or as a valve. When using a valve, this can be controlled by a fire alarm system and open in case of fire. This can be done electrically or mechanically. By pressurizing, which is also controlled by a fire alarm system, compressed air or gas can be driven into the pressure bottle and the extinguishing fluid are discharged. In the case of a rupture disk as a closure means, it is possible that this is brought to bursting by the pressurization, after which also extinguishing fluid can escape.
  • frost protection can not always be guaranteed by a heater.
  • a heater For example, with longer service life, it is not possible to allow a continuous heating by the battery, as this led to a discharge of the battery. The additional heating would have to be switched off for long periods. This could lead to the freezing of the extinguishing fluid and the destruction of conventional closure means.
  • destruction of the closure means is avoided.
  • the closure device according to the invention is preferably suitable for horizontal pressure bottles.
  • a horizontally arranged dip tube in the pressure bottle is immersed in the extinguishing fluid.
  • a fitting with a riser pipe is arranged, which extends vertically.
  • the riser is shaped to be at least partially above the level of the extinguishing fluid.
  • the closure means are arranged according to the invention above the level of the extinguishing fluid. Between the level of the extinguishing fluid and the closure means, a gas space is formed. Freezes the extinguishing fluid, this is done first on the peripheral expansions of the pressure bottle and the connecting pieces, ie on the inner wall of the pressure bottle and the adapter piece, in particular the dip tube, fitting and riser.
  • the riser will periodically freeze first, as it is exposed to the outside temperature unprotected. After freezing the extinguishing fluid inside the pressure bottle and the dip tube, this must expand. The expansion causes the Eispfropfen formed in the riser is pressed in the direction of the closure means.
  • the gas space between the closure means and the level of the extinguishing fluid allows the expansion and displacement of the ice plug in the riser without damaging the closure means. If the closing means were directly at or below the level of the extinguishing fluid, they would be damaged by the expansion of the fluid and the associated displacement of the ice plug. When thawing the extinguishing fluid could escape from the pressure bottle unhindered.
  • the closure device is suitable for protecting a dry system in which the pipes leading to the Lögebebeldüsen be filled with air at rest, and only in case of fire, the extinguishing fluid is introduced into the pipes. Also it would be possible to use wet systems to protect the solution according to the invention. For example, a saline solution having a lower freezing point could be kept in the pipelines.
  • the riser U-shaped It would also be possible to form the riser U-shaped. If the U is arranged so that the supply line and the discharge are below the arc, a gas space could form in the arc. In this gas space, the closure means could be arranged.
  • the interior of the pressure cylinder is pressurized with compressed air or gas via compressed air.
  • a rupture disk as a closure means
  • the extinguishing fluid is thereby pressed in the direction of the rupture disk until the bursting pressure is reached.
  • the rupture disk bursts and the extinguishing fluid is forced into the pipe until it is discharged from extinguishing mist nozzles.
  • a valve as a closure means this can be opened by a fire alarm system before the pressurization is activated.
  • the gas space is formed such that upon freezing of the extinguishing fluid in the connection piece, the frozen extinguishing fluid can expand in the direction of the closure means.
  • the gas space can be dimensioned so that the bursting pressure is not reached when the fluid expands.
  • the distance between the rupture disc and the level of the extinguishing fluid must be chosen so that a maximum, frost-related expansion of the extinguishing fluid does not drive the gas pressure above the bursting pressure. Measurements have shown that up to 9% expansion of the extinguishing fluid is possible in the case of freezing. This expansion must be absorbed by the gas space.
  • the dip tube is inclined in the direction of the inner wall of the pressure bottle.
  • the filling of the pressure bottle is preferably possible up to a degree of filling of 90 to 95%.
  • the dip tube and the connector are below the level of the extinguishing fluid, such that the dip tube is completely filled with extinguishing fluid and that the connector is filled at least to the riser with extinguishing fluid.
  • the riser is at least partially filled with extinguishing fluid. It only has to be ensured that the gas space between the closure means and the level of the extinguishing fluid is sufficiently large to compensate for the frost-caused expansion of the extinguishing fluid.
  • closure device By using the closure device according to the invention can be operated fire extinguishing equipment even if it is to be feared that the extinguishing fluid freeze temporarily freezes.
  • An admixing of antifreeze to the extinguishing fluid is preferably no longer necessary.
  • water is suitable according to an advantageous embodiment as extinguishing fluid.
  • Another object of the invention is a fire fighting system with an extinguishing fluid reservoir with a closure device according to claim 1 and one on the Pipe arranged piping, wherein the pipeline has at least one open extinguishing nozzle for discharging the extinguishing fluid, and wherein the closure means seals the pipe from the dip tube.
  • a fire fighting system with an extinguishing fluid reservoir with a closure device according to claim 1 and one on the Pipe arranged piping, wherein the pipeline has at least one open extinguishing nozzle for discharging the extinguishing fluid, and wherein the closure means seals the pipe from the dip tube.
  • extinguishing mist nozzles are used for discharging a finely distributed extinguishing mist.
  • FIG. 1 shows a fire extinguishing device 1 with a closure device 2 and a pressure bottle 6.
  • the closure device 2 is formed from an adapter piece 8, a connecting piece 12, a riser 14 and a rupture disc 18a.
  • a dip tube 10 inclined in the direction of the inner wall of the pressure bottle 6 is provided in the pressure bottle 6.
  • the dip tube 10 is below the level of the extinguishing fluid 4.
  • a Druck Kunststoffbeetzschung 22 which is provided with a check valve (not shown), in the event of fire, compressed air is introduced into the pressure cylinder 6 and the extinguishing fluid expelled from the pressure cylinder 6.
  • the closure device 2 is formed in such a way that the riser 14 preferably branches off from the connection piece 12 vertically into the vertical.
  • the rupture disc 18 a in the riser 14 is arranged so that it lies above the level 16 of the extinguishing fluid 4. Between the rupture disk 18a and the level 16 of the extinguishing fluid 4, a gas space 20 is formed.
  • the extinguishing fluid 4 freezes in the pressure cylinder 6.
  • the extinguishing fluid 4 freezes in the region of the riser 14 and the connecting piece 12.
  • the extinguishing fluid 4 freezes in the dip tube 10 and the pressure bottle 6 and expands. That in the riser 14 frozen extinguishing fluid is pressed by this expansion in the direction of the rupture disk 18a. Due to the displacement of the ice plug in the direction of the rupture disk 18a, the gas space 20 is compressed. However, the gas space 20 is dimensioned such that the frost-related increase in the gas pressure always remains below the bursting pressure of the rupture disk 18a. Extentions of up to 10% of the extinguishing fluid are compensated by the gas space 20.
  • FIG. 2 shows a further embodiment.
  • the riser 14 U-shaped. Inflow and outflow of the riser 14 are below the arc of the riser 14.
  • a valve 18 b is arranged in the gas space 20, . This valve is opened in case of fire before the pressure cylinder 6 is supplied with compressed air or gas.
  • closure device By the closure device according to the invention, it is possible to ensure a cost-effective frost-free operation of fire extinguishing systems.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Operations Research (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Table Devices Or Equipment (AREA)
  • Packages (AREA)
  • Food-Manufacturing Devices (AREA)
  • Safety Valves (AREA)

Abstract

Closure device 2 for pressure cylinders 6 storing extinguishing fluid 4, with a pressure cylinder 6 and an adapter piece 8 for the connection of an immersion pipe 10 arranged in the pressure cylinder 6, with a connection piece 12 arranged outside the pressure cylinder 6. In order to guarantee operation of a fire extinguishing device secure against frost, it is proposed that the immersion pipe 10 and the connection piece 12 are formed in such a way that the connection piece 12 in an idle state is partially filled with extinguishing fluid 4, the connection piece 12 comprises a riser pipe 14, in such a way that the riser pipe 14 lies at least partially above the level 16 of the extinguishing fluid 4, and that the riser pipe 14 comprises a bursting disc 18, in such a way that a gas space 20 is formed between the bursting disc 18 and the extinguishing fluid 4.

Description

Die Erfindung betrifft eine Verschlussvorrichtung für Löschfluid speichernde Druckflaschen mit einer Druckflasche und einem Adapterstück zum Anschluss eines in der Druckflasche angeordneten Tauchrohres mit einem außerhalb der Druckflasche angeordneten Anschlussstück.The invention relates to a closure device for extinguishing fluid-storing pressure bottles having a pressure bottle and an adapter piece for connecting a dip tube arranged in the pressure bottle to a connection piece arranged outside the pressure bottle.

Verschlussvorrichtungen für Löschfluid speichernde Druckflaschen sind beispielsweise aus der EP 0 138 195 A2 bekannt. Bei dieser Vorrichtung handelt es sich um eine selbstauslösende Löschvorrichtung für brandgefährdete Geräte. Eine kleine Druckflasche wird an einem Gerät montiert und über ein Blasrohr wird das Löschfluid an geeigneter Stelle ausgebracht. Um ein Verdunsten des Löschfluids zu verhindern, ist das Blasrohr an seinem Ende durch ein Material verschlossen, welches sich bei Überschreitung einer vorbestimmten Temperatur auflöst oder verflüssigt. Dies führt zu einer Selbstauslösung. Das Blasrohr ist im Ruhezustand mit Löschfluid gefüllt. Das Löschfluid liegt unmittelbar an dem Auslass an. Dehnt sich das Löschfluid aus, so kann es zu einer Zerstörung des Endstücks des Blasrohrs kommen, und Löschfluid könnte unbeabsichtigt austreten.Closing devices for extinguishing fluid-storing pressure bottles are for example from the EP 0 138 195 A2 known. This device is a self-triggering extinguishing device for fire-risk devices. A small pressure bottle is mounted on a device and via a blowpipe, the extinguishing fluid is discharged at a suitable location. In order to prevent evaporation of the extinguishing fluid, the blowpipe is closed at its end by a material which dissolves or liquefies when exceeding a predetermined temperature. This leads to a self-triggering. The blowpipe is filled at rest with extinguishing fluid. The extinguishing fluid is directly at the outlet. If the extinguishing fluid expands, the end piece of the blowpipe can be destroyed and extinguishing fluid could escape unintentionally.

Aus der EP 0 650 743 B1 ist eine Feuerlöscheinrichtung für Schienenfahrzeuge mit einem stationären Behälter für Löschflüssigkeit bekannt. Da Schienenfahrzeuge während ihres Betriebs ständig der Umgebungstemperatur ausgesetzt sind, kann es im Inneren der Fahrzeuge zu hohen Temperaturschwankungen kommen. Insbesondere wenn Schienenfahrzeuge auf Abstellgleisen abgestellt sind, und nicht beheizt werden, können im Inneren extrem niedrige Temperaturen vorherrschen. Friert das Löschfluid aufgrund der extrem niedrigen Temperaturen in den Druckflaschen ein, so kann durch das sich ausdehnenden Löschfluid eine Beschädigung der Rohrleitungen als auch der Schließventile auftreten.From the EP 0 650 743 B1 is a fire extinguishing device for rail vehicles with a stationary container for extinguishing liquid known. Since rail vehicles are constantly exposed to ambient temperature during their operation, high temperature fluctuations can occur inside the vehicles. Especially if Rail vehicles are parked on sidings, and not heated, can prevail inside extremely low temperatures. If the extinguishing fluid freezes due to the extremely low temperatures in the pressure bottles, the expanding extinguishing fluid can damage both the pipes and the closing valves.

Um eine Beschädigung der Rohre und der Ventile vorzubeugen, schlägt die EP 0 650 743 B1 vor, Rohre und Ventile aus Stoffen mit guten Materialeigenschaften herzustellen. Durch Verwendung von thermoelastischem Kunststoff werden durch Dehnungsspannungen verursachte Materialschäden wie Versprödung oder Rissbildung vermieden.To prevent damage to the pipes and the valves, proposes the EP 0 650 743 B1 to produce pipes and valves from materials with good material properties. The use of thermoelastic plastic prevents material damage such as embrittlement or cracking caused by expansion stresses.

Der Nachteil der Verwendung von thermoelastischem Kunststoff liegt einerseits in den hohen Anschaffungskosten, als auch andererseits in der mangelnden Feuerfestigkeit dieser Materialien. Im Brandfall kann es dazu kommen, dass die Rohrleitungen durch die enorme Hitze des Feuers schmelzen, und eine gute Brandbekämpfung nicht mehr möglich ist.The disadvantage of the use of thermo-elastic plastic is on the one hand in the high cost, and on the other hand in the lack of fire resistance of these materials. In case of fire, it can happen that the pipes melt due to the enormous heat of the fire, and a good fire fighting is no longer possible.

Zur Gewährleistung einer hohen Frostsicherheit der Feuerlöscheinrichtung in Verbindung mit hoher Betriebssicherheit und geringen Anschaffungskosten, schlägt die Erfindung vor, dass das Tauchrohr und das Anschlussstück derart geformt sind, dass das Anschlussstück im Ruhezustand teilweise mit Löschfluid gefüllt ist, dass das Anschlussstück ein Steigrohr aufweist, derart, dass das Steigrohr zumindest teilweise oberhalb des Pegels des Löschfluids liegt, und dass das Steigrohr Verschlussmittel aufweist, derart, zwischen den Verschlussmitteln und dem Löschfluid ein Gasraum gebildet ist.To ensure a high degree of frost protection of the fire extinguishing device in conjunction with high reliability and low acquisition costs, the invention proposes that the dip tube and the connector are shaped such that the connector is partially filled with extinguishing fluid at rest, that the connector has a riser, so in that the riser pipe is at least partially above the level of the extinguishing fluid, and in that the riser pipe comprises closure means, in such a way, between the Closing means and the extinguishing fluid, a gas space is formed.

Die Verschlussmittel können als Berstscheibe oder als Ventil gebildet sein. Bei der Verwendung eines Ventils kann dieses durch eine Brandmeldeanlage angesteuert werden und im Brandfall öffnen. Dies kann elektrisch oder mechanisch erfolgen. Durch eine Druckbeaufschlagung, die ebenfalls durch eine Brandmeldeanlage gesteuert ist, kann Druckluft oder Gas in die Druckflasche getrieben werden und das Löschfluid ausgebracht werden. Im Falle einer Berstscheibe als Verschlussmittel ist es möglich, dass diese durch die Druckbeaufschlagung zum Bersten gebracht wird, wonach ebenfalls Löschfluid austreten kann.The closure means may be formed as a rupture disk or as a valve. When using a valve, this can be controlled by a fire alarm system and open in case of fire. This can be done electrically or mechanically. By pressurizing, which is also controlled by a fire alarm system, compressed air or gas can be driven into the pressure bottle and the extinguishing fluid are discharged. In the case of a rupture disk as a closure means, it is possible that this is brought to bursting by the pressurization, after which also extinguishing fluid can escape.

Insbesondere bei mobilen Anwendungen, beispielsweise für LKW oder Busse, kann ein Frostschutz nicht immer durch eine Heizung gewährleistet sein. Beispielsweise bei längeren Standzeiten ist es nicht möglich, durch die Batterie eine Dauerbeheizung zu ermöglichen, da dies zu einer Entladung der Batterie führte. Die Zusatzheizung müsste bei langen Standzeiten abgeschaltet werden. Dadurch könnte es zum Einfrieren des Löschfluids und zur Zerstörung herkömmlicher Verschlussmittel kommen. Durch die erfindungsgemäße Lösung wird eine Zerstörung der Verschlussmittel vermieden.Especially in mobile applications, such as trucks or buses, frost protection can not always be guaranteed by a heater. For example, with longer service life, it is not possible to allow a continuous heating by the battery, as this led to a discharge of the battery. The additional heating would have to be switched off for long periods. This could lead to the freezing of the extinguishing fluid and the destruction of conventional closure means. By the solution according to the invention destruction of the closure means is avoided.

Bevorzugt eignet sich die erfindungsgemäße Verschlussvorrichtung für liegende Druckflaschen. In diesem Fall ist ein horizontal angeordnetes Tauchrohr in der Druckflasche in das Löschfluid eingetaucht. Am Austritt des Tauchrohrs wird ein Anschlussstück mit einem Steigrohr angeordnet, welches sich vertikal erstreckt. Das Steigrohr ist so geformt, dass es zumindest teilweise oberhalb des Pegels des Löschfluids liegt.The closure device according to the invention is preferably suitable for horizontal pressure bottles. In this case, a horizontally arranged dip tube in the pressure bottle is immersed in the extinguishing fluid. At the outlet of the dip tube, a fitting with a riser pipe is arranged, which extends vertically. The riser is shaped to be at least partially above the level of the extinguishing fluid.

In dem Steigrohr, oder an dessen Ende werden die Verschlussmittel angeordnet. Die Verschlussmittel werden erfindungsgemäß oberhalb des Pegels des Löschfluids angeordnet. Zwischen dem Pegel des Löschfluids und den Verschlussmitteln bildet sich ein Gasraum. Friert das Löschfluid ein, so geschieht dies zunächst an den peripheren Ausdehnungen der Druckflasche und den Verbindungsstücken, also an der Innenwandung der Druckflasche als auch am Adapterstück, insbesondere am Tauchrohr, Anschlussstück und Steigrohr. Das Steigrohr wird regelmäßig zuerst einfrieren, da es der Außentemperatur ungeschützt ausgesetzt ist. Friert danach das Löschfluid im Inneren der Druckflasche und dem Tauchrohr ein, muss sich dieses ausdehnen. Die Ausdehnung führt dazu, dass der im Steigrohr gebildete Eispfropfen in Richtung der Verschlussmittel gedrückt wird. Der Gasraum zwischen Verschlussmittel und Pegel des Löschfluids ermöglicht die Ausdehnung und Verschiebung des Eispfropfens im Steigrohr, ohne dass die Verschlussmittel beschädigt werden. Lägen die Verschlussmittel unmittelbar am oder unterhalb des Pegels des Löschfluids, würden diese durch die Ausdehnung des Fluids und die damit verbundene Verschiebung des Eispfropfens beschädigt werden. Beim Auftauen könnte das Löschfluid aus der Druckflasche ungehindert austreten.In the riser, or at the end of the closure means are arranged. The closure means are arranged according to the invention above the level of the extinguishing fluid. Between the level of the extinguishing fluid and the closure means, a gas space is formed. Freezes the extinguishing fluid, this is done first on the peripheral expansions of the pressure bottle and the connecting pieces, ie on the inner wall of the pressure bottle and the adapter piece, in particular the dip tube, fitting and riser. The riser will periodically freeze first, as it is exposed to the outside temperature unprotected. After freezing the extinguishing fluid inside the pressure bottle and the dip tube, this must expand. The expansion causes the Eispfropfen formed in the riser is pressed in the direction of the closure means. The gas space between the closure means and the level of the extinguishing fluid allows the expansion and displacement of the ice plug in the riser without damaging the closure means. If the closing means were directly at or below the level of the extinguishing fluid, they would be damaged by the expansion of the fluid and the associated displacement of the ice plug. When thawing the extinguishing fluid could escape from the pressure bottle unhindered.

Durch die Ausgestaltung des Steigrohrs und des Anschlussstückes gemäß Anspruch 1 wird eine solche Zerstörung der Verschlussmittel vermieden. Die Verschlussvorrichtung eignet sich zum Schutz eines trockenen Systems, bei dem die zu den Löschnebeldüsen führenden Rohre im Ruhezustand mit Luft gefüllt sind, und erst im Brandfall das Löschfluid in die Rohrleitungen eingebracht wird. Auch wäre es möglich, Nasssysteme mit der erfindungsgemäßen Lösung zu schützen. Beispielsweise könnte in den Rohrleitungen eine Salzlösung vorgehalten werden, die einen niedrigeren Gefrierpunkt hat.Due to the design of the riser and the fitting according to claim 1 such destruction of the closure means is avoided. The closure device is suitable for protecting a dry system in which the pipes leading to the Lögebebeldüsen be filled with air at rest, and only in case of fire, the extinguishing fluid is introduced into the pipes. Also it would be possible to use wet systems to protect the solution according to the invention. For example, a saline solution having a lower freezing point could be kept in the pipelines.

Auch wäre es möglich, das Steigrohr U-förmig zu bilden. Wird das U so angeordnet, dass Zuleitung und die Ableitung unterhalb des Bogens liegen, könnte sich im Bogen ein Gasraum bilden. In diesem Gasraum könnten die Verschlussmittel angeordnet werden.It would also be possible to form the riser U-shaped. If the U is arranged so that the supply line and the discharge are below the arc, a gas space could form in the arc. In this gas space, the closure means could be arranged.

Im Brandfall wird über eine Druckluftbeaufschlagung das Innere der Druckflasche mit Druckluft oder Gas beaufschlagt. Bei der Verwendung einer Berstscheibe als Verschlussmittel wird dadurch das Löschfluid in Richtung der Berstscheibe gedrückt, solange, bis der Berstdruck erreicht ist. Die Berstscheibe birst, und das Löschfluid wird in die Rohrleitung getrieben, bis es aus Löschnebeldüsen ausgebracht wird. Bei einem Ventil als Verschlussmittel kann dieses durch eine Brandmeldeanlage geöffnet werden, bevor die Druckbeaufschlagung aktiviert wird.In case of fire, the interior of the pressure cylinder is pressurized with compressed air or gas via compressed air. When using a rupture disk as a closure means, the extinguishing fluid is thereby pressed in the direction of the rupture disk until the bursting pressure is reached. The rupture disk bursts and the extinguishing fluid is forced into the pipe until it is discharged from extinguishing mist nozzles. With a valve as a closure means this can be opened by a fire alarm system before the pressurization is activated.

Bevorzugt ist, dass der Gasraum derart gebildet ist, dass sich beim Einfrieren des Löschfluids im Anschlussstück das gefrorene Löschfluid in Richtung der Verschlussmittel ausdehnen kann. Bei einer Berstscheibe kann der Gasraum so dimensioniert sein, dass beim Ausdehnen des Fluids der Berstdruck nicht erreicht wird. Die Entfernung zwischen Berstscheibe und Pegel des Löschfluids muss so gewählt werden, dass eine maximale, frostbedingte Ausdehnung des Löschfluids den Gasdruck nicht über den Berstdruck treibt. Messungen haben ergeben, dass eine bis zu 9%ige Ausdehnung des Löschfluids im Fall des Einfrierens möglich ist. Diese Ausdehnung muss durch den Gasraum aufgefangen werden. Durch die Verwendung der erfindungsgemäßen Verschlussvorrichtung ist es möglich, Druckflaschen mit 90 bis 95 % zu befüllen, ohne dass eine frostbedingte Zerstörung zu befürchten ist.It is preferred that the gas space is formed such that upon freezing of the extinguishing fluid in the connection piece, the frozen extinguishing fluid can expand in the direction of the closure means. In the case of a rupture disk, the gas space can be dimensioned so that the bursting pressure is not reached when the fluid expands. The distance between the rupture disc and the level of the extinguishing fluid must be chosen so that a maximum, frost-related expansion of the extinguishing fluid does not drive the gas pressure above the bursting pressure. Measurements have shown that up to 9% expansion of the extinguishing fluid is possible in the case of freezing. This expansion must be absorbed by the gas space. By using the sealing device according to the invention, it is possible to fill pressure bottles with 90 to 95%, without a frost-related destruction is to be feared.

Insbesondere bei liegenden Druckflaschen muss eine vollständige Entleerung im Brandfall gewährleistet sein. Aus diesem Grunde wird vorgeschlagen, dass das Tauchrohr in Richtung der Innenwand der Druckflasche geneigt ist.Especially with lying pressure bottles complete emptying must be guaranteed in case of fire. For this reason, it is proposed that the dip tube is inclined in the direction of the inner wall of the pressure bottle.

Die Befüllung der Druckflasche ist bevorzugt bis zu einem Befüllungsgrad von 90 bis 95 % möglich. In diesem Falle wird vorgeschlagen, dass bei einer auf einer Seite liegenden Druckflasche das Tauchrohr und das Anschlussstück unterhalb des Pegels des Löschfluids liegen, derart, dass das Tauchrohr vollständig mit Löschfluid gefüllt ist und dass das Anschlussstück bis zumindest zum Steigrohr mit Löschfluid gefüllt ist. Bevorzugt ist, dass das Steigrohr zumindest teilweise mit Löschfluid gefüllt ist. Es muss lediglich gewährleistet sein, dass der Gasraum zwischen Verschlussmittel und Pegel des Löschfluids genügend groß ist, um die frostbedingte Ausdehnung des Löschfluids zu kompensieren.The filling of the pressure bottle is preferably possible up to a degree of filling of 90 to 95%. In this case, it is proposed that in a lying on one side pressure bottle, the dip tube and the connector are below the level of the extinguishing fluid, such that the dip tube is completely filled with extinguishing fluid and that the connector is filled at least to the riser with extinguishing fluid. It is preferred that the riser is at least partially filled with extinguishing fluid. It only has to be ensured that the gas space between the closure means and the level of the extinguishing fluid is sufficiently large to compensate for the frost-caused expansion of the extinguishing fluid.

Durch die Verwendung der erfindungsgemäßen Verschlussvorrichtung lassen sich Feuerlöscheinrichtungen auch dann betreiben, wenn zu befürchten ist, dass das Löschfluid frostbedingt zeitweise einfriert. Ein Beimischen von Frostschutzmittel zum Löschfluid ist bevorzugt nicht mehr notwendig. Insbesondere Wasser eignet sich gemäß eines vorteilhaften Ausführungsbeispiels als Löschfluid.By using the closure device according to the invention can be operated fire extinguishing equipment even if it is to be feared that the extinguishing fluid freeze temporarily freezes. An admixing of antifreeze to the extinguishing fluid is preferably no longer necessary. In particular, water is suitable according to an advantageous embodiment as extinguishing fluid.

Ein weiterer Gegenstand der Erfindung ist ein System zur Brandbekämpfung mit einem Löschfluidspeicher mit einer Verschlussvorrichtung nach Anspruch 1 und einer an dem Anschlussstück angeordneten Rohrleitung, wobei die Rohrleitung zumindest eine offene Löschdüse zum Ausbringen des Löschfluids aufweist, und wobei die Verschlussmittel die Rohrleitung von dem Tauchrohr abdichtet. Ein solches System kann mit der erfindungsgemäßen Vorrichtung frostsicher betrieben werden. Eine Zerstörung der Verschlussmittel durch frostbedingte Ausdehnungen wird vermieden.Another object of the invention is a fire fighting system with an extinguishing fluid reservoir with a closure device according to claim 1 and one on the Pipe arranged piping, wherein the pipeline has at least one open extinguishing nozzle for discharging the extinguishing fluid, and wherein the closure means seals the pipe from the dip tube. Such a system can be operated frost-proof with the device according to the invention. Destruction of the closure means by frost-related expansions is avoided.

Bevorzugt werden Löschnebeldüsen zum Ausbringen eines fein verteilten Löschnebels verwendet.Preferably, extinguishing mist nozzles are used for discharging a finely distributed extinguishing mist.

Nachfolgend wird die Erfindung anhand einer ein Ausführungsbeispiel zeigenden Zeichnung näher erläutert.The invention will be explained in more detail with reference to a drawing showing an embodiment.

In der Zeichnung zeigt

FIG. 1
eine Verschlussvorrichtung nach einem ersten Ausführungsbeispiel;
FIG. 2
eine Verschlussvorrichtung nach einem zweiten Ausführungsbeispiel;
In the drawing shows
FIG. 1
a closure device according to a first embodiment;
FIG. 2
a closure device according to a second embodiment;

Figur 1 zeigt eine Feuerlöscheinrichtung 1 mit einer Verschlussvorrichtung 2 und einer Druckflasche 6. Die Verschlussvorrichtung 2 ist aus einem Adapterstück 8, einem Anschlussstück 12, einem Steigrohr 14 und einer Berstscheibe 18a gebildet. In der Druckflasche 6 ist ein in Richtung der Innenwand der Druckflasche 6 geneigtes Tauchrohr 10 vorgesehen. Das Tauchrohr 10 ist unterhalb des Pegels des Löschfluids 4. Über eine Druckluftbeaufschlagung 22, welche mit einem Rückschlagventil (nicht dargestellt) versehen ist, wird im Brandfall Pressluft in die Druckflasche 6 eingebracht und das Löschfluid aus der Druckflasche 6 ausgetrieben. FIG. 1 shows a fire extinguishing device 1 with a closure device 2 and a pressure bottle 6. The closure device 2 is formed from an adapter piece 8, a connecting piece 12, a riser 14 and a rupture disc 18a. In the pressure bottle 6, a dip tube 10 inclined in the direction of the inner wall of the pressure bottle 6 is provided. The dip tube 10 is below the level of the extinguishing fluid 4. About a Druckluftbeaufschlagung 22, which is provided with a check valve (not shown), in the event of fire, compressed air is introduced into the pressure cylinder 6 and the extinguishing fluid expelled from the pressure cylinder 6.

Die Verschlussvorrichtung 2 ist derart gebildet, dass von dem Anschlussstück 12 das Steigrohr 14 bevorzugt senkrecht in die Vertikale abzweigt. Die Berstscheibe 18a im Steigrohr 14 ist so angeordnet, dass sie oberhalb des Pegels 16 des Löschfluids 4 liegt. Zwischen der Berstscheibe 18a und dem Pegel 16 des Löschfluids 4 bildet sich ein Gasraum 20.The closure device 2 is formed in such a way that the riser 14 preferably branches off from the connection piece 12 vertically into the vertical. The rupture disc 18 a in the riser 14 is arranged so that it lies above the level 16 of the extinguishing fluid 4. Between the rupture disk 18a and the level 16 of the extinguishing fluid 4, a gas space 20 is formed.

Kommt es beim Betrieb der Feuerlöscheinrichtung 1 zu extremen Temperaturschwankungen, insbesondere sehr niedrigen Temperaturen, so friert das Löschfluid 4 in der Druckflasche 6 ein. Zunächst friert das Löschfluid 4 im Bereich des Steigrohrs 14 und des Anschlussstücks 12 ein. Danach friert das Löschfluid 4 im Tauchrohr 10 und der Druckflasche 6 und dehnt sich aus. Dass im Steigrohr 14 gefrorene Löschfluid wird durch diese Ausdehnung in Richtung der Berstscheibe 18a gepresst. Durch die Verschiebung des Eispfropfens in Richtung der Berstscheibe 18a wird der Gasraum 20 komprimiert. Der Gasraum 20 ist jedoch so dimensioniert, dass die frostbedingte Erhöhung des Gasdrucks stets unterhalb des Berstdrucks der Berstscheibe 18a bleibt. Ausdehnungen von bis zu 10 % des Löschfluids werden durch den Gasraum 20 kompensiert.If, during operation of the fire-extinguishing device 1, extreme temperature fluctuations occur, in particular very low temperatures, the extinguishing fluid 4 freezes in the pressure cylinder 6. First, the extinguishing fluid 4 freezes in the region of the riser 14 and the connecting piece 12. Thereafter, the extinguishing fluid 4 freezes in the dip tube 10 and the pressure bottle 6 and expands. That in the riser 14 frozen extinguishing fluid is pressed by this expansion in the direction of the rupture disk 18a. Due to the displacement of the ice plug in the direction of the rupture disk 18a, the gas space 20 is compressed. However, the gas space 20 is dimensioned such that the frost-related increase in the gas pressure always remains below the bursting pressure of the rupture disk 18a. Extentions of up to 10% of the extinguishing fluid are compensated by the gas space 20.

Im Brandfall wird Druckluft über die Druckluftbeaufschlagung 22 in die Druckflasche 6 gepresst. Das Löschfluid wird über das Tauchrohr 20, das Anschlussstück 12 und das Steigrohr 14 in Richtung der Berstscheibe 18a gedrückt. Der Druck liegt dann oberhalb des Berstdrucks der Berstscheibe 18a, und die Berstscheibe 18a birst. Das Löschfluid wird durch ein Rohrleitungssystem (nicht dargestellt) zu Löschnebeldüsen (nicht dargestellt) transportiert, und dort als fein verteilter Nebel zur Brandbekämpfung ausgebracht.In case of fire, compressed air is pressed via the compressed air 22 in the pressure bottle 6. The extinguishing fluid is forced via the dip tube 20, the connector 12 and the riser 14 in the direction of the rupture disc 18 a. The pressure is then above the bursting pressure of the rupture disk 18a, and the rupture disk 18a bursts. The extinguishing fluid is passed through a piping system (not shown) to Lögebebeldüsen Transported (not shown), and deployed there as a finely divided mist for fire fighting.

Figur 2 zeigt ein weiteres Ausführungsbeispiel. Im Unterschied zur Figur 1 ist hier das Steigrohr 14 U-förmig geformt. Zu- und Abfluss des Steigrohres 14 liegen unterhalb des Bogens des Steigrohrer 14. In dem Gasraum 20 ist ein Ventil 18b angeordnet. Diese Ventil wird im Brandfall geöffnet, bevor die Druckflasche 6 mit Druckluft oder Gas beaufschlagt wird. FIG. 2 shows a further embodiment. In contrast to FIG. 1 Here is the riser 14 U-shaped. Inflow and outflow of the riser 14 are below the arc of the riser 14. In the gas space 20, a valve 18 b is arranged. This valve is opened in case of fire before the pressure cylinder 6 is supplied with compressed air or gas.

Bei der in Figur 2 gezeigt Variante ist es möglich, dass zu beiden Seiten des Steigrohres Fluid in den Rohren ist. Nur oberhalb des Pegels 16 bildet sich ein Gasraum 20.At the in FIG. 2 As shown, it is possible for there to be fluid in the tubes on both sides of the riser. Only above the level 16, a gas space 20 is formed.

Durch die erfindungsgemäße Verschlussvorrichtung ist es möglich, kostengünstig einen frostsicheren Betrieb von Feuerlöschanlagen zu gewährleisten.By the closure device according to the invention, it is possible to ensure a cost-effective frost-free operation of fire extinguishing systems.

Claims (8)

  1. Closure device (2) for pressure cylinders (6) storing extinguishing fluid (4) with
    - a pressure cylinder (6), and
    - an adapter piece (8) for the connection of an immersion pipe (10) arranged in the pressure cylinder (6), with a connection piece (12) arranged outside the pressure cylinder (6),
    characterised in that
    - the immersion pipe (10) and the connection piece (12) are formed in such a way that the connection piece (12) in an idle state is partially filled with extinguishing fluid (4),
    - the connection piece (12) comprises a riser pipe (14) in such a way that the riser pipe (14) lies at least partially above the level (16) of the extinguishing fluid (4), and
    - in that the riser pipe (14) comprises closure means (18) in such a way that a gas space (20) is formed between the closure means (18) and the extinguishing fluid (4).
  2. Closure device (2) according to Claim 1, characterised in that the gas space (20) is formed in such a way that, in the event of the extinguishing fluid (4) freezing in the connection piece (12), the frozen extinguishing fluid (4) can expand in the direction of the closure means (18).
  3. Closure device (2) according to any one of the preceding claims, characterised in that the immersion pipe (10) is inclined in the direction of the inner wall of the pressure cylinder (6).
  4. Closure device (2) according to any one of the preceding claims, characterised in that the riser pipe (14) is formed U-shaped, wherein the inflow and outflow are arranged below the curve, in such a way that a gas space (20) forms in the curve, and in that the closure means (18) are arranged in the curve.
  5. Closure device (2) according to any one of the preceding claims, characterised in that, with the pressure cylinder (6) lying on its side, the immersion pipe (10) and the connection piece (12) lie below the level (16) of the extinguishing fluid (4), in such a way that the immersion pipe (10) is completely filled with extinguishing fluid (4), and in that the connection piece (12) is filled with extinguishing fluid (4) at least as far as the riser pipe (14).
  6. Closure device (2) according to any one of the preceding claims, characterised in that the extinguishing fluid (4) is free of frost protection means.
  7. Closure device (2) according to any one of the preceding claims, characterised in that the extinguishing fluid (4) is water.
  8. System for fighting fires with an extinguishing fluid reservoir with a closure device (2) according to Claim 1 and a pipe arranged at the connection piece (12), wherein the pipe comprises at least one open extinguishing nozzle for the delivery of extinguishing fluid, and wherein the closure means (18) seal off the pipe from the immersion pipe (10).
EP06807657A 2006-10-30 2006-10-30 Frost resistant container for extinguishing fluid Active EP2015851B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06807657T PL2015851T3 (en) 2006-10-30 2006-10-30 Frost resistant container for extinguishing fluid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2006/067929 WO2008052593A1 (en) 2006-10-30 2006-10-30 Frost resistant container for extinguishing fluid

Publications (2)

Publication Number Publication Date
EP2015851A1 EP2015851A1 (en) 2009-01-21
EP2015851B1 true EP2015851B1 (en) 2010-09-22

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US (1) US20090314501A1 (en)
EP (1) EP2015851B1 (en)
JP (1) JP4768856B2 (en)
KR (1) KR20090086905A (en)
CN (1) CN101500659B (en)
AT (1) ATE482005T1 (en)
DE (1) DE502006007935D1 (en)
DK (1) DK2015851T3 (en)
ES (1) ES2350855T3 (en)
PL (1) PL2015851T3 (en)
WO (1) WO2008052593A1 (en)

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CN108175979A (en) * 2018-01-02 2018-06-19 北京力坚消防科技有限公司 The application method of pressure container apparatus and pressure container apparatus
CN108211174A (en) * 2018-02-09 2018-06-29 常州市凯斯特汽车附件有限公司 Fire extinguisher
CN111202932B (en) * 2020-02-28 2021-07-09 朱香芽 Ball type self-induction self-rotation fire extinguishing device
DE102021115689A1 (en) 2021-06-17 2022-12-22 Fogtec Brandschutz Gmbh Liquid container system for a firefighting system, firefighting system with a liquid container and adapter for a liquid container system

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CN101500659A (en) 2009-08-05
ES2350855T3 (en) 2011-01-27
US20090314501A1 (en) 2009-12-24
DE502006007935D1 (en) 2010-11-04
PL2015851T3 (en) 2011-03-31
ATE482005T1 (en) 2010-10-15
CN101500659B (en) 2012-07-18
KR20090086905A (en) 2009-08-14
JP4768856B2 (en) 2011-09-07
WO2008052593A1 (en) 2008-05-08
JP2010508049A (en) 2010-03-18
EP2015851A1 (en) 2009-01-21
DK2015851T3 (en) 2011-01-24

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