EP3546027B1 - Method for extinguishing fires containing a high proportion of batteries, e.g. vehicles with drive batteries installed therein - Google Patents
Method for extinguishing fires containing a high proportion of batteries, e.g. vehicles with drive batteries installed therein Download PDFInfo
- Publication number
- EP3546027B1 EP3546027B1 EP19160947.8A EP19160947A EP3546027B1 EP 3546027 B1 EP3546027 B1 EP 3546027B1 EP 19160947 A EP19160947 A EP 19160947A EP 3546027 B1 EP3546027 B1 EP 3546027B1
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- EP
- European Patent Office
- Prior art keywords
- hose
- liquid
- fire
- pipe sections
- liquid distributors
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- 238000000034 method Methods 0.000 title claims description 32
- 239000007788 liquid Substances 0.000 claims description 84
- 238000010168 coupling process Methods 0.000 claims description 29
- 238000005859 coupling reaction Methods 0.000 claims description 29
- 230000008878 coupling Effects 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims 1
- 239000002759 woven fabric Substances 0.000 claims 1
- 239000004744 fabric Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 101000793686 Homo sapiens Azurocidin Proteins 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010073 coating (rubber) Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- 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
- A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/06—Physical fire-barriers
- A62C2/08—Water curtains
-
- 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
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C33/00—Hose accessories
Definitions
- the invention relates to a method for extinguishing strong battery fuel sources of fire, z. B. Vehicles with built-in drive batteries.
- Fires in road vehicles have existed for as long as vehicles have existed.
- the source of the fire was usually in the engine compartment of the vehicle and the source of the fire was often the fuel supply of the combustion engine with petrol or diesel fuel.
- Such fires triggered by flammable fuels can in most cases be fought in the conventional manner by the source of the fire in the engine compartment e.g. B. is fought using a standard hand fire extinguisher.
- an extinguishing device formed from rigid pipes which is designed to be placed under a burning electric vehicle, wherein the extinguishing agent can be distributed evenly under the electric vehicle through slanted sprinkler openings, whereby a cooling or extinguishing effect can occur.
- the device is also suitable for cooling heated gas tanks.
- the DE 20 2005 021 584 U1 proposes a fluid distributor consisting of a conventional fire hose provided with side outlet nozzles along its length, the outlet nozzles being arranged in two rows along the longitudinal axis of the hose, the rows being slightly angularly offset from the cross-section of the fire hose are arranged to each other.
- JP 2009 125235 A an extinguishing device that confines the body of fire.
- a pipe ring is placed around the seat of the fire and a wall of water is created by nozzles arranged on it to prevent the inflow of further oxygen to the fire.
- the invention is therefore based on the object of being able to effectively delete battery-intensive sources of fire using conventional fire-fighting agents as far as possible, e.g. B. burning vehicles with a large number of highly efficient traction batteries installed in them.
- a first such liquid distributor is connected to one end and a second such liquid distributor is connected to the other end of a bent pipe section.
- the liquid distributors are arranged with the piece of pipe connecting them in relation to the seat of the fire in such a way that one liquid distributor extends along one side of the seat of the fire.
- a suitable extinguishing liquid is then fed in. This then emerges in the form of liquid jets rising almost vertically from those outlet nozzles with which the liquid distributors are provided along their longitudinal extent.
- liquid walls that are highly efficient in terms of fire protection are formed. These liquid walls represent a measure that is as simple as it is effective to absorb radiant energy emanating from the seat of the fire and to prevent the spread of the fire, which is particularly critical in practice, as well as radiant heat to neighboring combustible objects.
- the liquid distributors and bent pipe sections can be joined together in such a way that a frame or ring of liquid distributors is formed around the seat of the fire.
- the extinguishing liquid is then fed in, it emerges upwards from the outlet nozzles on all sides of the seat of the fire, as a result of which vertical walls of liquid are formed on all sides, which prevent the seat of the fire from spreading outside the frame formed in this way.
- the peripheral segment of the nozzle hose, on which liquid can emerge from the outlet nozzles extends over a partial circumference of no more than 1/4 and preferably no more than 1/16 of the nozzle hose.
- extinguishing liquid When extinguishing liquid is fed in, it only escapes from the nozzle hose of the liquid distributor over a limited partial extent and if possible only in one direction, so that a very large proportion of the available extinguishing liquid is actually used to form the vertical liquid wall and not for firefighting is lost.
- no active rotational alignment of the hose is necessary. Rather, due to the recoil effects on the nozzles, the nozzle hoses rotate themselves into a rotational position in which the nozzles radiate away from the ground, i.e. upwards.
- liquid distributors are placed in such a way that they lie directly on the ground surrounding the seat of the fire. Special mounts, holders or frames for the liquid distributors are therefore not required, and the extinguishing process can be carried out in almost any environment.
- the conversion of the two other pieces of pipe can each be carried out with the help of a rod.
- the rod is provided with a handle at one end and with a gripper that can be connected to the piece of pipe at the other end.
- the piece of pipe is provided with an integrally formed eyelet to which the gripper can be attached.
- a further embodiment of the method proposes that the extinguishing liquid be fed into the liquid distributor on the bent pipe section or on one of the bent pipe sections, and that the pipe section has two openings for the pressure-tight connection of liquid distributors and a third opening for the pressure-tight connection of a feed hose.
- Either only one of the bent pipe sections can have the third opening, or each of the bent pipe sections can have the third opening, in which case the feed hose is only connected to the third opening of one of the pipe sections, whereas the third openings of the remaining pipe sections are blocked so that no extinguishing liquid can escape there.
- B. Caps are placed on the openings.
- At least one pipe section including the hose sections connected to it, is picked up at one location and transferred to another location.
- the piece of pipe is gripped by an eyelet formed on it.
- the eyelet serves as a towing eyelet to exert a pulling force directed away from the source of the fire on the relevant piece of pipe, e.g. B. by means of a rope or a pull rod.
- figure 1 12 shows a plan view of a tubular liquid distributor 10 composed of an elongate nozzle hose 11 and a hose coupling 12 at each of the two ends of the nozzle hose 11.
- FIG. The two hose couplings 12 of the liquid distributor are designed identically. They are those widely used couplings 12 that are used by fire brigades to connect conventional fire hoses.
- the basis for the nozzle hose 11 is also a conventional fire hose.
- the hose therefore consists of a pressure-resistant, flexible fabric material, which can be provided with a rubber coating both on the inside and on the outside.
- the fabric material causes the hose to behave essentially slack when not under pressure.
- the tube then takes on a flat, slit-shaped cross-section, it has hardly any bending elasticity and therefore behaves in a limp manner.
- the advantage that the hose can be folded in a zigzag shape over its length for transport purposes or can also be rolled up flat. It can therefore be accommodated in a particularly space-saving manner when not in use.
- the hose only assumes its circular cross-section when liquid pressure is fed into the inside of the hose.
- the nozzle hose 11 is provided with a hose coupling 12 at each of its ends.
- the hose coupling 12 is made of metal and is a bayonet coupling that can be connected quickly and that can be locked with the respective counter-coupling by rotating it about the hose axis by no more than 90°. In the locking position, the coupling can be secured against unintentional turning back by means of an additional pawl.
- Both hose couplings 12 of the nozzle hose 11 are designed identically and are therefore in principle interchangeable.
- the bayonet elements in the couplings are also designed in such a way that each end of the tubular liquid distributor 10 can be connected to another liquid distributor 10 having a similar coupling.
- the bayonet elements include bayonet hooks, which are locked in relation to the counter-coupling when the coupling rotates partway.
- the turning is carried out on a locking and unlocking ring 13 which can be easily grasped by hand and which is also designed in the same way on both couplings 12 involved.
- the special feature of the hose 11 of the liquid distributor 10 is that it is provided with outlet nozzles 15 distributed over its length and preferably evenly distributed.
- the outlet nozzles 15 are not distributed over the entire circumference of the hose jacket, but rather they are all located on the same partial circumference of the hose.
- This partial circumference is no more than 1/4 and preferably no more than 1/16 of the circumference of the nozzle tube 11 figure 1 an arrangement in which all the outlet nozzles 15 of the nozzle tube 10 are in a row, ie are on a uniform longitudinal line.
- the outlet nozzles 15 can be distributed over two or three longitudinal lines, but these lines are so close together that, as already mentioned, all outlet nozzles 15 are only on a partial circumference of the nozzle hose 11, which is no more than 1 ⁇ 4 of the total circumference .
- the figure 2 shows a section through the nozzle hose in the area of one of the outlet nozzles 15.
- the outlet nozzle 15 is composed of a nozzle housing 16 and ring disks 17. This configuration ensures that the outlet nozzle 15 is supported with its nozzle housing 16 on the outside of the hose, and at the same time one of the ring disks 17 is supported from the inside against the hose jacket.
- the outlet nozzles 15 are therefore not just openings in the material of the hose jacket, but separately attached nozzle parts. This results in a durable nozzle hose that can be used again and again. If, on the other hand, there were only openings in the hose material, the openings would tear open over time due to the pressures used and destroy the hose.
- the pipe section 20 is preferably a quadrant pipe section so that it connects two liquid distributors 10 at right angles to one another.
- the pipe section 20 has hose couplings 12 of the same coupling type as the liquid distributor 10 at both ends. Additional markings are attached to the hose couplings 12 forming the two pipe ends. These indicate which rotational position the hose 11 to be connected there should have in order to ensure the optimum direction of emission from the outlet nozzles 15 .
- figure 3 shows a source of fire 1, z. B. a burning electric vehicle, with a surrounding the source of the fire 1 U-shaped arrangement of three liquid distributors 10 and two bent pipe sections 20, 20A.
- the curved piece of pipe 20A differs from the other piece of pipe 20 in that it not only has the two openings for connecting the liquid distributor 10, but also a third opening 21 and thus a further flow connection for the pressure-tight connection of a feed hose 35. This connection also takes place under Use of the same type of coupling used in fire hoses.
- the feed hose 35 is a conventional fire hose, i.e. a hose without lateral outlet nozzles 15.
- extinguishing liquid such as B.
- Water is supplied via the feed hose 35 and is distributed at the pipe section 20A into the liquid distributor 10 connected to it.
- closure covers 37 are placed on these ends by means of the couplings 12 .
- the closure covers 37 are provided with similar couplings 12 .
- figure 4 shows an extinguishing arrangement with a total of four liquid distributors 10 and four pipe sections 20, 20A, which are connected together to form a closed ring through which extinguishing liquid can flow.
- the liquid distributor 10 and bent pipe sections 20, 20A are arranged in such a way that they surround the source of the fire 1 as a rectangular extinguishing frame with a required safety distance.
- two pipe sections 20A have the third openings 21 suitable for feeding, whereas the other two pipe sections 20 do not have the third openings.
- the feed hose 35 is only connected to one of the pipe sections 20A, whereas the second pipe section 20A, which is provided with a third opening 21, has no feed function here.
- a closure cap 37 is screwed onto its third opening, for which purpose the closure cap 37 is provided with a corresponding coupling 12 .
- bent pipe sections 20, 20A are provided with at least one eyelet 40.
- the respective piece of pipe can be easily grasped by hand at the eyelet 40 .
- it can be adjusted using a long rod 50 ( figure 5 ) to grasp the piece of pipe, including the hose sections connected to it, from a certain distance record a first place to raise and to a second place, based on the fire 1, to be able to implement.
- a pull rope 42 can be latched to a further eyelet 41 by means of a snap hook. The traction cable 42 is then used to pull the piece of pipe 20, 20A lying on the ground, to pull it away from the source of the fire 1, for example.
- the pipe section 20, 20A can also be provided with only one eyelet.
- This one eyelet is then attached to the piece of pipe in such a way that the eyelet is as in 3 and 4 pipe section 20, 20A resting on the ground, extending obliquely outwards.
- the eyelet then preferably extends at an angle of 30° to 60° to the plane in which the bend in the pipe section is located.
- FIGs 5 and 6 schematically show a possible procedure.
- four liquid distributors 10 and four pipe sections 20, 20A are already connected in such a way that they form a ring through which flow can take place.
- this repositioning takes place by gripping the eyelet 40 attached to the respective pipe section 20 with the aid of the aforementioned rod 50, and thus the pipe section 20 with the hose sections hanging thereon is lifted and relocated. This can be assisted by the traction cable 42 acting on the eyelet 40 or on the other eyelet 41 .
- the rod 50 is provided with a handle at one end and a gripper suitable for grasping the eyelet 40 at its other end, e.g. B. a hook.
- the rod 50 is a telescopic rod of adjustable length.
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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)
Description
Die Erfindung betrifft ein Verfahren zum Löschen stark batteriehaltiger Brandherde, z. B. Fahrzeugen mit darin verbauten Antriebsbatterien.The invention relates to a method for extinguishing strong battery fuel sources of fire, z. B. Vehicles with built-in drive batteries.
Die Zahl elektrisch angetriebener Fahrzeuge im Straßenverkehr nimmt zu und wird in den nächsten Jahren noch deutlicher zunehmen. Derartige Fahrzeuge verfügen über besonders leistungsfähige Batteriesysteme. Gerade diese Batteriesysteme haben sich jedoch auch als eine Quelle höchst problematischer Brände herausgestellt. Dies gilt insbesondere für Lithiumionen-Batterien als Antriebsbatterien.The number of electrically powered vehicles on the road is increasing and will increase even more in the coming years. Such vehicles have particularly powerful battery systems. However, it is precisely these battery systems that have also turned out to be a source of highly problematic fires. This applies in particular to lithium-ion batteries as traction batteries.
Brände in Straßenfahrzeugen hat es gegeben, seit es Fahrzeuge gibt. Der Brandherd befand sich dabei meistens im Motorraum des Fahrzeuges und die Brandquelle war oft die Kraftstoffversorgung des Verbrennungsmotors mit Benzin- oder Dieselkraftstoff. Solche durch entzündliche Treibstoffe ausgelöste Brände lassen sich in den meisten Fällen herkömmlich bekämpfen, indem der Brandherd im Motorraum z. B. unter Einsatz eines handelsüblichen Handfeuerlöschers bekämpft wird.Fires in road vehicles have existed for as long as vehicles have existed. The source of the fire was usually in the engine compartment of the vehicle and the source of the fire was often the fuel supply of the combustion engine with petrol or diesel fuel. Such fires triggered by flammable fuels can in most cases be fought in the conventional manner by the source of the fire in the engine compartment e.g. B. is fought using a standard hand fire extinguisher.
Diese Technik der herkömmlichen Brandbekämpfung versagt bei Bränden an modernen, besonders leistungsfähigen Traktionsbatterien, weshalb bereits Verfahren zur Brandbekämpfung speziell an Fahrzeugen mit in Brand geratenen Traktionsbatterien vorgeschlagen wurden. Diese Verfahren erfordern allerdings spezielle Maßnahmen und eine entsprechende technische Ausstattung, wie sie nicht überall vorhanden oder schnell verfügbar ist. Zudem erfordert der Einsatz dieser speziellen Brandbekämpfungsmaßnahmen ein entsprechend geschultes Fachpersonal.This conventional fire-fighting technique fails in the case of fires in modern, particularly powerful traction batteries, which is why fire-fighting methods have already been proposed specifically for vehicles with traction batteries that have caught fire. However, these procedures require special measures and appropriate technical equipment that is not available everywhere or readily available. In addition, the use of these special firefighting measures requires appropriately trained specialist personnel.
Aus der
Die
Ferner offenbart die
Der Erfindung liegt daher die Aufgabe zu Grunde, unter Einsatz möglichst konventioneller Brandbekämpfungsmittel batterieintensive Brandherde wirksam löschen zu können, z. B. brennende Fahrzeuge mit einer Vielzahl darin verbauter, hocheffizienter Traktionsbatterien.The invention is therefore based on the object of being able to effectively delete battery-intensive sources of fire using conventional fire-fighting agents as far as possible, e.g. B. burning vehicles with a large number of highly efficient traction batteries installed in them.
Zur Lösung dieser Aufgabe wird ein Löschverfahren mit den folgenden Schritten vorgeschlagen:
- Bereitstellen von Flüssigkeitsverteilern, die jeweils aus einem Düsenschlauch aus einem in drucklosem Zustand biegeschlaffen, faltbaren Gewebematerial und aus identisch gestalteten Schlauchkupplungen an beiden Schlauchenden bestehen, wobei jeder Düsenschlauch mit Austrittsdüsen versehen ist, die über die Schlauchlänge verteilt angeordnet sind und aus denen Flüssigkeit nur auf einem Umfangssegment des Düsenschlauchs austreten kann, das über einen Teilumfang des Düsenschlauchs reicht,
- Anschließen eines Flüssigkeitsverteilers am einen und eines weiteren Flüssigkeitsverteilers am anderen Ende eines gebogenen Rohrstücks, vorzugsweise eines Viertelkreisrohrstücks,
- Platzieren der Flüssigkeitsverteiler und des gebogenen Rohrstücks in solcher Anordnung, dass sich die Flüssigkeitsverteiler entlang unterschiedlicher Seiten des Brandherds erstrecken,
- Einspeisen von Löschflüssigkeit in die Flüssigkeitsverteiler.
- Provision of liquid distributors, each consisting of a nozzle hose made of a pliable, foldable fabric material when not under pressure and identically designed hose couplings on both hose ends, with each nozzle hose being provided with outlet nozzles which are distributed over the length of the hose and from which liquid is only on one Circumferential segment of the nozzle hose can exit, which extends over a partial circumference of the nozzle hose,
- Connecting a liquid distributor to one end and another liquid distributor to the other end of a bent piece of pipe, preferably a quarter-circle piece of pipe,
- Placing the liquid distributors and the bent pipe section in such an arrangement that the liquid distributors extend along different sides of the seat of the fire,
- Feeding extinguishing liquid into the liquid distributor.
Ein solches Löschverfahren greift nicht auf die für Batteriebrände spezialisierten Brandschutzmaßnahmen und entsprechende technische Ausstattungen zurück, da beides im Bedarfsfall nicht immer kurzfristig verfügbar ist. Stattdessen kommen weitgehend konventionelle Mittel der Brandbekämpfung zum Einsatz, die zudem einfach zu bedienen und auch ohne geschultes Fachpersonal zu handhaben sind. Zu diesen konventionellen Mitteln zählen schlauchartige Flüssigkeitsverteiler, die sich jeweils aus einem mit seitlichen Austrittsdüsen bestückten Düsenschlauch und Schlauchkupplungen an dessen beiden Enden zusammensetzen. Derartige Flüssigkeitsverteiler sind z. B. in der
Bei dem Löschverfahren wird ein erster solcher Flüssigkeitsverteiler am einen, und ein zweiter solcher Flüssigkeitsverteiler am anderen Ende eines gebogen geformten Rohrstücks angeschlossen. Die Flüssigkeitsverteiler werden mit dem sie verbindenden Rohrstück so in Bezug auf den Brandherd angeordnet, dass sich jeweils ein Flüssigkeitsverteiler entlang einer Seite des Brandherdes erstreckt. Sodann wird eine geeignete Löschflüssigkeit eingespeist. Diese tritt dann in Form von nahezu senkrecht aufsteigenden Flüssigkeitsstrahlen aus jenen Austrittsdüsen aus, mit denen die Flüssigkeitsverteiler entlang ihrer Längserstreckung versehen sind. Dadurch bilden sich brandschutztechnisch hoch effiziente Flüssigkeitswände aus. Diese Flüssigkeitswände stellen eine ebenso einfache wie wirksame Maßnahme dar, um von dem Brandherd ausgehende Strahlungsenergie zu absorbieren und die in der Praxis besonders kritische Ausbreitung des Brandes sowie Strahlungshitze auf benachbarte brennbare Gegenstände zu verhindern.In the extinguishing process, a first such liquid distributor is connected to one end and a second such liquid distributor is connected to the other end of a bent pipe section. The liquid distributors are arranged with the piece of pipe connecting them in relation to the seat of the fire in such a way that one liquid distributor extends along one side of the seat of the fire. A suitable extinguishing liquid is then fed in. This then emerges in the form of liquid jets rising almost vertically from those outlet nozzles with which the liquid distributors are provided along their longitudinal extent. As a result, liquid walls that are highly efficient in terms of fire protection are formed. These liquid walls represent a measure that is as simple as it is effective to absorb radiant energy emanating from the seat of the fire and to prevent the spread of the fire, which is particularly critical in practice, as well as radiant heat to neighboring combustible objects.
Insbesondere lassen sich die Flüssigkeitsverteiler und gebogenen Rohrstücke so zusammenschließen, dass um den Brandherd herum ein Rahmen bzw. Ring aus Flüssigkeitsverteilern gebildet wird. Mit dem anschließenden Einspeisen der Löschflüssigkeit tritt diese auf allen Seiten des Brandherdes nach oben aus den Austrittsdüsen aus, wodurch sich an allen Seiten vertikale Flüssigkeitswände ausbilden, welche ein Ausbreiten des Brandherdes nach außerhalb des so gebildeten Rahmens verhindern.In particular, the liquid distributors and bent pipe sections can be joined together in such a way that a frame or ring of liquid distributors is formed around the seat of the fire. When the extinguishing liquid is then fed in, it emerges upwards from the outlet nozzles on all sides of the seat of the fire, as a result of which vertical walls of liquid are formed on all sides, which prevent the seat of the fire from spreading outside the frame formed in this way.
Von besonderem Vorteil ist die Verwendung herkömmlicher, in der Brandschutztechnik bereits allgemein bekannter und vielerorts ohnehin vorhandener Elemente. Dies gilt insbesondere für die Flüssigkeitsverteiler, die den allgemein von Feuerwehren verwendeten Feuerwehrschläuchen eng verwandt und mit diesen kompatibel sind, allerdings ergänzt um die zusätzlichen Austrittsdüsen. Auch die verwendeten Kupplungssysteme sind von üblicher Bauart, denn sie werden auch allgemein zur Verbindung konventioneller Feuerwehrschläuche verwendet. Nicht konventionell sind die gebogenen Rohrstücke, über welche die Flüssigkeitsverteiler in Strömungsverbindung stehen. Jedoch sind auch die Rohrstücke wiederum mit jenen Kupplungen versehen, wie sie auch zur Verbindung konventioneller Feuerwehrschläuche verwendet werden.Of particular advantage is the use of conventional elements that are already well known in fire protection technology and already exist in many places. This applies in particular to the liquid distributors, which are closely related and compatible with the fire hoses commonly used by fire brigades, but with the addition of the additional outlet nozzles. The coupling systems used are also of the usual type, as they are also commonly used to connect conventional fire hoses. The curved pipe sections through which the liquid distributors are in flow connection are not conventional. However, the pipe sections are also provided with those couplings that are also used to connect conventional fire hoses.
Insgesamt wird also unter Verwendung standardisierter, da aus der Feuerwehrtechnik bekannter Elemente und Komponenten ein hohes Maß an Kompatibilität erreicht, und es lassen sich auch ohne Spezialgerät und ohne Spezialwissen Brandherde wie z. B. brennende Fahrzeugen mit darin in großer Stückzahl verbauten Antriebsbatterien bekämpfen.Overall, a high degree of compatibility is achieved using standardized elements and components known from firefighting technology, and sources of fire such as e.g. B. fighting burning vehicles with large numbers of drive batteries installed in them.
Vorteilhafte Ausgestaltungen des Verfahrens sind in den Unteransprüchen angegeben.Advantageous refinements of the method are specified in the dependent claims.
So wird mit einer Ausgestaltung vorgeschlagen, dass das Umfangsegment des Düsenschlauchs, auf dem Flüssigkeit aus den Austrittsdüsen austreten kann, über einen Teilumfang von nicht mehr als einem 1/4 und vorzugsweise von nicht mehr als einem 1/16 des Düsenschlauchs reicht. Bei Einspeisung von Löschflüssigkeit tritt diese daher nur über einen begrenzten Teilumfang und möglichst nur in eine Richtung aus dem Düsenschlauch des Flüssigkeitsverteilers aus, so dass ein sehr großer Anteil der zur Verfügung stehenden Löschflüssigkeit wirklich zur Bildung der vertikalen Flüssigkeitswand verwendet wird, und nicht für die Brandbekämpfung verloren ist. Dabei ist von besonderem Vorteil, dass keine aktive Drehausrichtung des Schlauchs notwendig ist. Vielmehr drehen sich die Düsenschläuche aufgrund von Rückstoss-Effekten an den Düsen von selbst in eine Drehlage, in der die Düsen vom Boden weg strahlen, also nach oben.One embodiment proposes that the peripheral segment of the nozzle hose, on which liquid can emerge from the outlet nozzles, extends over a partial circumference of no more than 1/4 and preferably no more than 1/16 of the nozzle hose. When extinguishing liquid is fed in, it only escapes from the nozzle hose of the liquid distributor over a limited partial extent and if possible only in one direction, so that a very large proportion of the available extinguishing liquid is actually used to form the vertical liquid wall and not for firefighting is lost. It is of particular advantage that no active rotational alignment of the hose is necessary. Rather, due to the recoil effects on the nozzles, the nozzle hoses rotate themselves into a rotational position in which the nozzles radiate away from the ground, i.e. upwards.
Für eine Brandbekämpfung ohne spezielle Hilfsmittel ist es ferner von Vorteil, wenn die Platzierung der Flüssigkeitsverteiler in der Weise erfolgt, dass sie auf dem den Brandherd umgebenden Boden unmittelbar aufliegen. Spezielle Aufnahmen, Halter oder Gestelle für die Flüssigkeitsverteiler sind daher nicht erforderlich, vielmehr lässt sich das Löschverfahren in fast jeder Umgebung durchführen.For fighting a fire without special aids, it is also advantageous if the liquid distributors are placed in such a way that they lie directly on the ground surrounding the seat of the fire. Special mounts, holders or frames for the liquid distributors are therefore not required, and the extinguishing process can be carried out in almost any environment.
Mit einer Ausgestaltung des Verfahrens wird vorgeschlagen, dass insgesamt vier Flüssigkeitsverteiler und vier gebogene Rohrstücke zu einem Ring von solcher Größe zusammengeschlossen werden, dass dieser den Brandherd vollständig zu umschließen vermag.With one embodiment of the method, it is proposed that a total of four liquid distributors and four bent pipe sections are joined together to form a ring of such a size that it is able to completely enclose the seat of the fire.
Vorzugsweise werden die zu einem Ring zusammengeschlossenen Flüssigkeitsverteiler und Rohrstücke anschließend zu einem Rechteckrahmen mit vier Ecken ausgelegt, indem
- zunächst an den beiden Ecken einer Seite des Brandherdes zwei in dem Ring aufeinanderfolgende Rohrstücke abgelegt werden, wobei sich die zwei weiteren Rohrstücke vorläufig ebenfalls noch an dieser Seite des Brandherds befinden,
- anschließend die zwei weiteren Rohrstücke einschließlich der an ihnen angeschlossenen Schlauchabschnitte an die beiden übrigen Ecken umgesetzt und an diesen Ecken abgelegt werden, vorzugsweise ebenfalls auf dem Boden.
- first of all, at the two corners of one side of the seat of the fire, two consecutive pieces of pipe are laid down in the ring, with the two other pieces of pipe still being located on this side of the seat of the fire for the time being,
- then the two other pieces of pipe, including the hose sections connected to them, are transferred to the two remaining corners and placed at these corners, preferably also on the floor.
Das Umsetzen der zwei weiteren Rohrstücke kann hierbei jeweils mit Hilfe einer Stange durchgeführt werden. Die Stange ist an ihrem einen Ende mit einem Handgriff und an ihrem anderen Ende mit einem mit dem Rohrstück verbindbaren Greifer versehen. Hierzu ist es von Vorteil, wenn das Rohrstück mit einer angeformten Öse versehen ist, an die der Greifer angesetzt werden kann.The conversion of the two other pieces of pipe can each be carried out with the help of a rod. The rod is provided with a handle at one end and with a gripper that can be connected to the piece of pipe at the other end. For this purpose, it is advantageous if the piece of pipe is provided with an integrally formed eyelet to which the gripper can be attached.
Mit einer weiteren Ausgestaltung des Verfahrens wird vorgeschlagen, dass das Einspeisen der Löschflüssigkeit in die Flüssigkeitsverteiler an dem gebogenen Rohrstück bzw. an einem der gebogenen Rohrstücke durchgeführt wird, und dass das Rohrstück hierzu zwei Öffnungen für das druckdichte Anschließen von Flüssigkeitsverteilern und eine dritte Öffnung für das druckdichte Anschließen eines Einspeiseschlauchs aufweist.A further embodiment of the method proposes that the extinguishing liquid be fed into the liquid distributor on the bent pipe section or on one of the bent pipe sections, and that the pipe section has two openings for the pressure-tight connection of liquid distributors and a third opening for the pressure-tight connection of a feed hose.
Dabei kann entweder nur eines der gebogenen Rohrstücke die dritte Öffnung aufweisen, oder es kann jedes der gebogenen Rohrstücke die dritte Öffnung aufweisen, wobei in letzterem Fall der Einspeiseschlauch nur an die dritte Öffnung eines der Rohrstücke angeschlossen wird, wohingegen die dritten Öffnungen der übrigen Rohrstücke versperrt werden, so dass dort keine Löschflüssigkeit austreten kann. Zum Sperren dieser nicht benötigten dritten Öffnungen können z. B. Verschlussdeckel auf die Öffnungen aufgesetzt werden.Either only one of the bent pipe sections can have the third opening, or each of the bent pipe sections can have the third opening, in which case the feed hose is only connected to the third opening of one of the pipe sections, whereas the third openings of the remaining pipe sections are blocked so that no extinguishing liquid can escape there. To block these unneeded third openings z. B. Caps are placed on the openings.
Bei einer Ausgestaltung des Löschverfahrens wird bei dem Platzieren der zusammengeschlossenen Flüssigkeitsverteiler und Rohrstücke zumindest ein Rohrstück einschließlich der daran angeschlossenen Schlauchabschnitten an einem Ort aufgenommen und an einen anderen Ort umgesetzt. Dazu wird das Rohrstück an einer daran angeformten Öse ergriffen.In one embodiment of the extinguishing method, when the connected liquid distributors and pipe sections are placed, at least one pipe section, including the hose sections connected to it, is picked up at one location and transferred to another location. To do this, the piece of pipe is gripped by an eyelet formed on it.
Für eine größtmögliche Freiheit bei der Verwendung und Anordnung der Rohrstücke ist es von Vorteil, wenn sämtliche verwendeten Rohrstücke mit der daran angeformten Öse versehen sind und so je nach Brandsituation leicht umgesetzt werden können. Außerdem dient die Öse dazu, als Zugöse eine von dem Brandherd weg gerichtete Zugkraft an dem betreffenden Rohrstück auszuüben, z. B. mittels eines Seils oder auch einer Zugstange.For the greatest possible freedom in the use and arrangement of the pipe sections, it is advantageous if all pipe sections used are provided with the eyelet formed on them and can thus be easily moved depending on the fire situation. In addition, the eyelet serves as a towing eyelet to exert a pulling force directed away from the source of the fire on the relevant piece of pipe, e.g. B. by means of a rope or a pull rod.
Einzelheiten und weitere Vorteile des Brandbekämpfungsverfahrens werden nachfolgend anhand der Zeichnungen erläutert und beschrieben. Es zeigen:
Figur 1- einen Endabschnitt eines aus einem Düsenschlauch und einer Kupplung am Ende des Düsenschlauchs bestehenden Flüssigkeitsverteilers, wie er bei dem hier beschriebenen Verfahren zum Einsatz kommt;
- Figur 2
- einen Schnitt durch den Düsenschlauch in der in
eingezeichneten Schnittebene II-II;Figur 1 - Figur 3
- eine Anordnung aus drei Flüssigkeitsverteilern, welche über zwei gebogene Rohrstücke zu einer einen Brandherd umgebenden U-Form verbunden sind;
- Figur 4
- eine Anordnung aus vier Flüssigkeitsverteilern und vier gebogenen Rohrstücken, die insgesamt einen den Brandherd allseitig umgebenden, rechteckigen Rahmen bildet;
- Figur 5
- eine schematische Draufsicht auf einen Brandherd, auf Flüssigkeitsverteiler und auf Rohrstücke in einem ersten Stadium des Löschverfahrens, und
- Figur 6
- die Gegenstände nach
Figur 5 in einem zweiten, so weit vorbereiteten Stadium des Löschverfahrens, dass Löschflüssigkeit eingespeist werden kann.
- figure 1
- an end portion of a liquid distributor consisting of a nozzle tube and a coupling at the end of the nozzle tube, as used in the method described herein;
- figure 2
- a cut through the nozzle hose in the in
figure 1 marked cutting plane II-II; - figure 3
- an arrangement of three liquid distributors, which are connected via two bent pipe sections to form a U-shape surrounding a seat of the fire;
- figure 4
- an arrangement of four liquid distributors and four bent pipe sections, which together form a rectangular frame surrounding the seat of the fire on all sides;
- figure 5
- a schematic plan view of a source of fire, liquid distributor and pieces of pipe in a first stage of the extinguishing process, and
- figure 6
- the items after
figure 5 in a second stage of the extinguishing process that has been prepared to such an extent that extinguishing liquid can be fed in.
Basis für den Düsenschlauch 11 ist ebenfalls ein konventioneller Feuerwehrschlauch. Der Schlauch besteht daher aus einem druckfesten, biegsamen Gewebematerial, welches sowohl auf der Innenseite wie auch auf der Außenseite mit einer Gummierung versehen sein kann. Das Gewebematerial führt dazu, dass sich der Schlauch in drucklosem Zustand im Wesentlichen schlaff verhält. Der Schlauch nimmt dann also einen flachen, schlitzförmigen Querschnitt ein, er hat kaum Biegeelastizität und verhält sich daher biegeschlaff. Damit verbunden ist der Vorteil, dass der Schlauch zu Transportzwecken über seine Länge zickzack-förmig faltbar oder auch flach aufwickelbar ist. Er ist daher bei Nichtgebrauch besonders platzsparend unterzubringen. Nur mit dem Einspeisen von Flüssigkeitsdruck ins Schlauchinnere nimmt der Schlauch seinen kreisrunden Querschnitt an.The basis for the
Der Düsenschlauch 11 ist an jedem seiner Enden mit jeweils einer Schlauchkupplung 12 versehen. Die Schlauchkupplung 12 besteht aus Metall und ist eine schnell verbindbare Bajonettkupplung, die durch eine Drehung um die Schlauchachse von nicht mehr als 90° mit der jeweiligen Gegenkupplung verriegelbar ist. In der Verriegelungsstellung kann die Kupplung mittels einer zusätzlichen Sperrklinke gegen ein ungewolltes Zurückdrehen gesichert sein.The
Beide Schlauchkupplungen 12 des Düsenschlauchs 11 sind identisch gestaltet und damit prinzipiell austauschbar. Insbesondere sind auch die Bajonettelemente in den Kupplungen so gestaltet, dass wahlweise jedes Ende des schlauchförmigen Flüssigkeitsverteilers 10 mit einem anderen, eine gleichartige Kupplung aufweisenden Flüssigkeitsverteiler 10 verbindbar ist. Zu den Bajonettelementen gehören u. a. Bajonetthaken, die bei einer Teildrehung der Kupplung gegenüber der Gegenkupplung verriegelt werden.Both
Das Drehen erfolgt an einem gut von Hand greifbaren Verriegelungs- und Entriegelungsring 13, der ebenfalls an beiden beteiligten Kupplungen 12 gleich gestaltet ist.The turning is carried out on a locking and unlocking
Die Besonderheit des Schlauchs 11 des Flüssigkeitsverteilers 10 besteht darin, dass dieser über seine Länge verteilt und vorzugsweise gleichmäßig verteilt mit Austrittsdüsen 15 versehen ist.The special feature of the
Die Austrittsdüsen 15 sind nicht über den gesamten Umfang des Schlauchmantels verteilt, sondern sie befinden sich alle auf demselben Teilumfang des Schlauchs. Dieser Teilumfang beträgt nicht mehr als 1/4 und vorzugsweise nicht mehr als 1/16 des Umfangs des Düsenschlauchs 11. Hierzu zeigt
Die
Jeweils zwei der Flüssigkeitsverteiler 10 sind druckfest über ein eine Strömungsverbindung bildendes, gebogenes Rohrstück 20 verbunden. Das Rohrstück 20 ist vorzugsweise ein Viertelkreisrohrstück, so dass es zwei Flüssigkeitsverteiler 10 in einem rechten Winkel zueinander verbindet. Das Rohrstück 20 hat an beiden Enden Schlauchkupplungen 12 desselben Kupplungstyps wie die Flüssigkeitsverteiler 10. An den die beiden Rohrenden bildenden Schlauchkupplungen 12 sind zusätzlich Markierungen angebracht. Diese zeigen an, welche Drehlage der dort anzuschließende Schlauch 11 haben sollte, um die optimale Ausstrahlrichtung der Austrittsdüsen 15 sicherzustellen.In each case two of the
Löschflüssigkeit wie z. B. Wasser wird über den Einspeiseschlauch 35 zugeführt, und verteilt sich an dem Rohrstück 20A in die daran angeschlossenen Flüssigkeitsverteiler 10.extinguishing liquid such as B. Water is supplied via the
Um bei der Anordnung nach
Bei der Ausführungsform nach
Vorzugsweise alle gebogenen Rohrstücke 20, 20A sind mit mindestens einer Öse 40 versehen. An der Öse 40 lässt sich das jeweilige Rohrstück leicht mit der Hand fassen. Vor allem lässt es sich mittels einer langen Stange 50 (
Anstatt zweier Ösen 40, 41 kann das Rohrstück 20, 20 A auch mit nur einer Öse versehen sein. Diese eine Öse ist dann so an dem Rohrstück angebracht, dass sich die Öse bei wie in
Die
Jedoch befinden sich alle Teile noch auf nur einer Seite des Brandherdes 1. Zu bevorzugen ist jene Seite des Brandherdes, auf der am ehesten Platz zur Verfügung steht, alle benötigten Flüssigkeitsverteiler 10 und Rohrstücke 20, 20A zunächst miteinander zu verbinden und dabei auch den noch drucklosen Einspeiseschlauch 37 bereits anzuschließen.However, all parts are still on only one side of the source of the
In der Vorbereitungsphase nach
Sodann werden diese anderen, bis dahin nur vorläufig abgelegten Rohrstücke einschließlich der daran hängenden Schlauchabschnitte an Orte umgesetzt, welche sich an den beiden anderen Ecken C, D des Brandherds 1 befinden, und an diesen Orten C und D auf dem Boden abgelegt.Then these other, until then only temporarily stored pieces of pipe, including the hose sections hanging therefrom, are implemented at locations which are located at the other two corners C, D of the seat of the
Wegen der Hitzeentwicklung am Brandherd 1 erfolgt dieses Umsetzen, indem die an dem jeweiligen Rohrstück 20 angebrachte Öse 40 mit Hilfe der bereits erwähnten Stange 50 ergriffen, und so das Rohrstück 20 mit den daran hängenden Schlauchabschnitten angehoben und umgesetzt wird. Dies kann durch das an der Öse 40 oder an der weiteren Öse 41 angreifende Zugseil 42 unterstützt werden.Because of the heat generated at the source of the
Die Stange 50 ist an ihrem einen Ende mit einem Handgriff versehen, und weist an ihrem anderen Ende einen für das Ergreifen der Öse 40 geeigneten Greifer auf, z. B. einen Haken. Vorzugsweise ist die Stange 50 eine Teleskopstange von einstellbarer Länge.The
Durch nach außen Ziehen an dem Zugseil, welches zuvor an der Öse 40 oder der weiteren Ösen 41 eingeklinkt wurde, lässt sich das betreffende Rohrstück vom Brandherd weg ziehen, so dass schließlich die in
- 11
- Brandherdseat of fire
- 1010
- Flüssigkeitsverteilerliquid distributor
- 1111
- Düsenschlauchnozzle hose
- 1212
- Kupplung, Schlauchkupplungcoupling, hose coupling
- 1313
- Verriegelungs- und EntriegelungsringLocking and unlocking ring
- 1515
- Austrittsdüseoutlet nozzle
- 1616
- Düsengehäusenozzle body
- 1717
- Ringscheibering washer
- 2020
- Rohrstückpiece of pipe
- 20A20A
- Rohrstückpiece of pipe
- 2121
- dritte Öffnung am Rohrstückthird opening on the pipe section
- 3535
- Einspeiseschlauchfeed hose
- 3737
- Verschlussdeckelcap
- 4040
- Öseeyelet
- 4141
- weitere Öseanother eyelet
- 4242
- Zugseilpull rope
- 5050
- Stangepole
- AA
- Ecke, Ortcorner, place
- BB
- Ecke, Ortcorner, place
- CC
- Ecke, Ortcorner, place
- DD
- Ecke, Ortcorner, place
Claims (13)
- Method for extinguishing sources of fire with a high battery content, e.g. vehicles having drive batteries installed therein, comprising the following method steps:- providing liquid distributors (10) which are in each case composed of a nozzle hose (11) from a woven fabric material which in the non-pressurized state is limp and foldable, and of identically designed hose couplings (12) at both hose ends, wherein each nozzle hose (11) is provided with exit nozzles (15) which are disposed over the hose length and from which liquid can exit only on a circumferential segment of the nozzle hose (11) that reaches across a partial circumference of the nozzle hose (11);- connecting one liquid distributor (10) to one end, and a further liquid distributor (10) to the other end, of a curved pipe section (20, 20A), preferably of a pipe quadrant;- placing the liquid distributors (10) and the curved pipe section (20, 20A) in such an arrangement that the liquid distributors (10) extend along different sides of the source of fire (1) ;- feeding extinguishing liquid into the liquid distributors (10).
- Method according to Claim 1, characterized in that the circumferential segment of the nozzle hose (11) on which liquid can exit the exit nozzles (15) reaches across a partial circumference of not more than 1/4 and preferably not more than 1/16th of the nozzle hose (11).
- Method according to Claim 1 or 2, characterized by placing the liquid distributors (10) in the manner that the latter bear directly on the ground surrounding the source of fire (1).
- Method according to one of Claims 1 to 3, characterized in that, when connecting the liquid distributors (10), a total of four liquid distributors (10) and four curved pipe sections (20, 20A) are assembled so as to form a ring of such a size that said ring is able to completely enclose the source of fire (1).
- Method according to Claim 4, in which the liquid distributors (10) and pipe sections (20, 20A) connected to form a ring are subsequently laid out so as to form a rectangular frame having four corners (A, B, C, D), in that- first, two pipe sections (20, 20A) which are successive in the ring are deposited at both corners (A, B) of one side of the source of fire (1), wherein the two further pipe sections are temporarily likewise situated on this side of the source of fire (1);- thereafter, the two further pipe sections including the hose portions connected thereto are repositioned at the two remaining corners (C, D) and are deposited at these corners (C, D).
- Method according to Claim 5, characterized in that the repositioning of the two further pipe sections is in each case carried out with the aid of a bar (50) which at the one end thereof is provided with a handle and at the other end thereof is provided with a gripper that is able to be connected to the pipe section.
- Method according to one of the preceding claims, characterized in that the feeding of the extinguishing liquid into the liquid distributors (10) is carried out at the curved pipe section (20A), or at one of the curved pipe sections (20A), respectively, and in that the pipe section (20A) for this purpose has two openings for connecting liquid distributors (10) in a pressure-tight manner, and a third opening (21) for connecting an infeed hose (35) in a pressure-tight manner.
- Method according to Claim 7, characterized in that only one of the curved pipe sections (20A) has the third opening (21).
- Method according to Claim 7, characterized in that all curved pipe sections (20A) have the third opening (21), wherein the infeed hose (35) is connected only to the third opening of one of the pipe sections, and the third openings of the other pipe sections are blocked.
- Method according to Claim 9, characterized in that, for blocking the third openings (21), closure caps (37) are placed onto these openings.
- Method according to one of the preceding claims, characterized in that, when placing the connected liquid distributors (10) and pipe sections (20, 20A), at least one pipe section (20, 20A) including the hose portions connected thereto is picked up at one location and repositioned at another location, and the pipe section (20, 20A) for this purpose is gripped at an eyelet (40) integrally moulded thereon.
- Method according to Claim 11, characterized in that all pipe sections (20, 20A) are provided with the eyelet (40) integrally moulded thereon.
- Method according to Claim 11 or 12, characterized by exerting on at least one of the pipe sections (20, 20A) a tensile force that is directed away from the source of fire (1), for which purpose a traction rope (42) is latched to the eyelet (40) on the pipe section (20, 20A) and said traction rope (42) is placed under tension.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018107540.5A DE102018107540A1 (en) | 2018-03-29 | 2018-03-29 | Method for extinguishing strong battery-containing fire foci, z. B. vehicles with drive batteries installed therein |
Publications (2)
Publication Number | Publication Date |
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EP3546027A1 EP3546027A1 (en) | 2019-10-02 |
EP3546027B1 true EP3546027B1 (en) | 2023-08-23 |
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EP19160947.8A Active EP3546027B1 (en) | 2018-03-29 | 2019-03-06 | Method for extinguishing fires containing a high proportion of batteries, e.g. vehicles with drive batteries installed therein |
Country Status (3)
Country | Link |
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EP (1) | EP3546027B1 (en) |
DE (1) | DE102018107540A1 (en) |
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NL2025223B1 (en) * | 2020-03-27 | 2021-10-20 | New Energysafetysolutions B V | Fire suppression device |
DE102023103611A1 (en) | 2023-02-15 | 2024-08-22 | Rescuevation Holding GmbH | Nozzle module for cooling hazardous objects, an associated use, an associated arrangement and an associated method |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
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US3972373A (en) * | 1975-08-25 | 1976-08-03 | Nichols Kenneth B | Fire extinguisher system for vehicle |
DE202004010754U1 (en) | 2004-07-09 | 2004-09-02 | Fettweis, Herbert | Liquid distributor with a foldable fire hose |
FR2876920B1 (en) * | 2004-10-26 | 2007-07-06 | Claude Piveau | PIPE FOR STOPPING A FIRE |
DE202005021584U1 (en) * | 2005-07-06 | 2008-11-13 | Fettweis, Herbert | liquid distributor |
JP2009125235A (en) * | 2007-11-21 | 2009-06-11 | Hatsuta Seisakusho Co Ltd | Fire extinguishing method and fire extinguisher |
EP2711052A1 (en) * | 2012-09-21 | 2014-03-26 | Autoliv Development AB | A valve arrangement for a motor vehicle fire suppression system |
DE102015220601A1 (en) * | 2015-10-22 | 2017-04-27 | Robert Bosch Gmbh | Introduction device for cooling or extinguishing agent in a battery pack |
NO341471B1 (en) * | 2016-12-01 | 2017-11-20 | Frank Daniel Brubakken | A method for extinguishing burning batteries inside an electric vehicle |
DE202017002156U1 (en) * | 2017-04-25 | 2017-07-17 | Rainer Gebhard | Surface sprinkler pipe for firefighting |
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2018
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2019
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