EP4420740B1 - Verbesserter feuerlöscher zur dispersion eines fluorfreien löschmittels - Google Patents

Verbesserter feuerlöscher zur dispersion eines fluorfreien löschmittels

Info

Publication number
EP4420740B1
EP4420740B1 EP24159461.3A EP24159461A EP4420740B1 EP 4420740 B1 EP4420740 B1 EP 4420740B1 EP 24159461 A EP24159461 A EP 24159461A EP 4420740 B1 EP4420740 B1 EP 4420740B1
Authority
EP
European Patent Office
Prior art keywords
tank
millimeters
liquid
sprayed
outlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP24159461.3A
Other languages
English (en)
French (fr)
Other versions
EP4420740A1 (de
EP4420740C0 (de
Inventor
Stéphane FRADIN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Extincteurs Andrieu Ste
Original Assignee
Extincteurs Andrieu Ste
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Extincteurs Andrieu Ste filed Critical Extincteurs Andrieu Ste
Publication of EP4420740A1 publication Critical patent/EP4420740A1/de
Application granted granted Critical
Publication of EP4420740C0 publication Critical patent/EP4420740C0/de
Publication of EP4420740B1 publication Critical patent/EP4420740B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/003—Extinguishers with spraying and projection of extinguishing agents by pressurised gas
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/66—Portable extinguishers which are permanently pressurised or pressurised immediately before use with extinguishing material and pressure gas being stored in separate containers
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/76—Details or accessories
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C5/00—Making of fire-extinguishing materials immediately before use
    • A62C5/02—Making of fire-extinguishing materials immediately before use of foam
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C99/00—Subject matter not provided for in other groups of this subclass
    • A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
    • A62C99/0036—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using foam
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C99/00—Subject matter not provided for in other groups of this subclass
    • A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
    • A62C99/0072—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using sprayed or atomised water

Definitions

  • the present invention relates to a fire extinguisher improving the dispersion of an extinguishing agent.
  • a fire extinguisher of this type in which the means for receiving the additive or fire extinguishing agent consist of a cartridge housed inside the tank under conditions suitable for isolating the additive from the liquid to be sprayed, on the one hand, and from the pressurized propellant gas, on the other hand, as long as the seal of the flushing bottle has not been struck, and for making the interior of the cartridge communicate with the interior of the flushing bottle after striking the seal of the latter, so that the pressure of the propellant gas is applied to the interior of the additive cartridge; the wall of the latter is weakened locally, by various means, so that it opens under this pressure and, thus, on the one hand, a mixture of the additive with the liquid to be sprayed is produced and, on the other hand, a gaseous pressure is established on the mixture thus formed tending to expel this mixture through the outlet for the liquid to be sprayed, in a manner controlled by the action of an operator on the means of sealing or opening this outlet.
  • Fire extinguishing agents used generally contain mixtures of surfactants that act as foaming agents, together with solvents and other additives that provide the desired mechanical and chemical properties to the foam. These fire extinguishing agents are subject to improvements in order to optimize the foaming characteristics of known fire extinguishing compositions, and to obtain a fire extinguishing process that is faster, more effective, and in particular, specifically adapted to a certain class of fires, without being limited to it.
  • fluorinated agents are stable and do not react with the wall of the extinguisher.
  • a fluorinated agent, particularly from the perfluorinated family, used as an additive can be a wetting agent, an anti-corrosive product or an AFFF (floating film forming agent).
  • AFFF floating film forming agent
  • the document FR 2 965 486 A1 describes a fire extinguisher comprising in its tank a member for receiving an additive intended to be mixed with a liquid contained in the extinguisher.
  • the additive used is a powder of plant origin, preferably starch-based.
  • an additive guaranteed to be fluorine-free, and more specifically, free of perfluorinated chemical components, is less stable over time and is likely to react chemically with the extinguisher wall.
  • This instability of the fluorine-free additive gives it an abrasive and corrosive character.
  • the lack of stability of the non-fluorinated additive risks inhibiting its effectiveness in the long term.
  • the aim of the present invention is to overcome these drawbacks and, to this end, the present invention provides a fire extinguisher having optimal operation with a fluorine-free extinguishing agent contained in the flush bottle.
  • the side orifice is radial to the tank axis.
  • the fire extinguisher 100 comprises a reservoir 120 and a cover 180.
  • the reservoir 120 has a general shape of revolution around an axis A1 which, in a determined orientation of use of the fire extinguisher 100, is vertical relative to a horizontal plane, as illustrated in the figures or forms a few degrees of angle of inclination relative to the vertical. This determined orientation of use of the fire extinguisher 100 will serve as a reference for the remainder of the description.
  • the top wall 123 is pierced, for example right through, with an orifice 123A for filling with liquid to be sprayed 200; this orifice 123A is advantageously delimited by an edge 123B of the top wall 123, which edge 123B is annular of revolution around the axis A1.
  • the cover 180 is attached, for example removably, to the reservoir 120, to seal the orifice 123A in a sealed manner, and, as better shown in Figure 5 , comprises for this purpose a flat wall 181 having the general shape of a disk of revolution around the axis A1, which flat wall 181 has downwards an annular groove, of revolution around the axis A1, suitable for receiving the edge 123B of the orifice 123A and for applying itself in a sealed manner to this edge 123B by means of a seal not illustrated, when the cover 180 is fixed on the tank 120.
  • This fixing is carried out for example, in a manner known per se, by bolting 124, preserving the sealing of the tank 120 by the flat wall 181 of the cover 180, on the top wall 123 around the orifice 123A of the tank 120.
  • a boss 182 advantageously made in one piece with the flat wall 181 and pierced, on one side of the axis A1, with a conduit 183 for the outlet of the liquid 200 contained in the reservoir 120, which conduit 183 has for this purpose an opening 183A opening into the lower face 181A of the flat wall 181 and an opening 183B in the boss 182.
  • the extinguisher 100 further comprises control means 140 for striking a cover 134 of the flushing bottle 130.
  • the conduit 183 is advantageously connected, in a sealed manner, to a flexible and sealed lance tube 190 provided with sealed closure means 191 and controlled and regulated opening, by action of the operator on a handle 191A, for example automatically returned to a state corresponding to the tight closure of the tube 190, which means 191 are connected to a diffusion system 1, or extinguishing nozzle 1, of the liquid 200 to be sprayed into the ambient air.
  • the diffusion system 1 may be or advantageously comprise an extinguishing nozzle 1 as described in the document BE 1028003 A1 .
  • an extinguishing nozzle 1 is shown in figure 6 , it comprises a mixing chamber 2, a ventilation chamber 3 and a foaming chamber 4, wherein said ventilation chamber 3 is coupled to said mixing chamber 2, and comprises a first hollow cylindrical body 5 comprising at least three air inlet holes 6, said air inlet holes are arranged on the circumference and are directed into the first hollow cylindrical body, said foaming chamber comprises a second hollow cylindrical body having an axial length L and an inner diameter d, which foaming chamber 4 is coupled to said ventilation chamber 3, and said ventilation chamber 3 and/or said foaming chamber 4 comprise a lattice (not visible), wherein said lattice is oriented in the radial plane of the inner cross-section of the ventilation chamber 3 and/or of the foaming chamber 4, and in that the ratio between the axial length and the inner diameter L:d of the foaming chamber 4 is between 4:5 and 9:
  • the conduit 184 has a first section 184C connected to the mouth 184A, a second section 184D, a third section 184E connected to the outlet 184B, and the second section 184D connecting the first section 184C to the third section 184E.
  • the fire extinguisher comprises a handle 142.
  • the handle 142 may be for carrying and/or, as will appear later, may be for activating the fire extinguisher 100 by percussion.
  • This handle 142 extends cantilevered, opposite the conduit 183 relative to the axis A1, and the handle 142 is for example pivotally mounted.
  • the handle 142 is held, by a removable pin 143 perpendicular to the axis A1 and bearing downwards on the flat wall 181, in an upper limit position illustrated in figures 1 And 2 , but when an operator wishes to put the extinguisher 100 into service, he removes the pin 143, which frees the handle 142 from tilting downwards relative to the boss 182.
  • the handle 142 has, integrally, above the convex upper end 141A of the rod 141, a bearing surface 142A allowing, when the handle 142 is tilted by the operator, to apply to the rod 141, by means of its convex upper end 141A, a force forcing the rod 141 to slide downwards inside the bore 184F of the flat wall 181, from a high position which is illustrated in the figures and which it occupies.
  • the rod 141 extends, integrally downwards, by a hollow needle 141C having an unreferenced external peripheral face with a diameter smaller than the respective diameters of the collar 141B and the first section 184C of the conduit 184.
  • the rod 141 and the hollow needle 141C which may be made in a single piece, constitute a striker, actuated by the handle 142, to controllably release a pressurized propellant gas 300, chosen from a group comprising, for example, nitrogen, argon, carbon dioxide or comprising one or more gases from the group comprising, for example, nitrogen, argon, carbon dioxide, intended to expel the liquid 200 from the reservoir 120, and a fluorine-free extinguishing additive 400, preferably liquid, such as a wetting agent, an anti-corrosion agent, intended to be mixed beforehand with the liquid 200 to increase its ability to extinguish a certain type of fire.
  • a pressurized propellant gas 300 chosen from a group comprising, for example, nitrogen, argon, carbon dioxide or comprising one or more gases from the group comprising, for example, nitrogen, argon, carbon dioxide, intended to expel the liquid 200 from the reservoir 120
  • a fluorine-free extinguishing additive 400 preferably liquid, such
  • this propellant gas 300 and this fluorine-free additive 400 are contained, without partitioning between them, in a single bottle or flushing cartridge 130 housed inside the tank 120 and connected in a sealed and integral manner, the bottle or flushing cartridge 130 is preferably removable, at the mouth 184A of the first section 184C of the conduit 184, mounted for example by tapping.
  • a nut 500 may be included in the fire extinguisher 100, the nut 500 comprising a thread 501 capable of cooperating with a complementary part of the tubular neck 133A and an external thread 502 capable of cooperating with a complementary part of the mouth 184A of the first section 184C of the conduit 184.
  • This intermediate connection piece ensures sealing.
  • This may be a 500 nut that has undergone zinc plating for its protection.
  • the zinc plating of the 500 nut may further be reinforced by the application of a protective paint.
  • a protective paint suitable for metals.
  • This additional layer generally transparent, makes it possible to isolate the metal constituting the 500 nut from the complementary parts mentioned above.
  • the conduit 184 which may be made of aluminum, is thus isolated from the nut 500 by this finishing paint.
  • the purpose of this intermediate layer is to limit the development of galvanic corrosion.
  • the nut 500 and the complementary parts can be shaped to receive two O-rings, a first seal 510 being arranged between the nut 500 and the complementary part of the tubular neck 133A and a second seal 511 being arranged between the nut 500 and the mouth 184A of the first section 184C of the conduit 184.
  • the combination of the nut 500 and two seals makes it possible to improve the sealing of the connection. This improvement in sealing thus limits galvanic corrosion, in particular in the form of crystals, at this location which is also difficult to cover correctly with a possible layer of protective finishing paint.
  • a filling port 512 is provided in the nut 500, transverse to the direction of extension of the nut 500. This is a through opening allowing the flushing bottle 130 to be filled with dedicated equipment. This is possible when the nut 500 is partially unscrewed so as to allow communication between the filling port 512 and the interior of the flushing bottle 130.
  • the second seal 511 rests at the filling orifice 512 so as to prevent the potential entry of water into this filling orifice 512.
  • this protective layer is a paint, in particular the protective paint used for the 500 nut.
  • the extinguishing power of the fluorine-free extinguishing agent may decrease over time.
  • the flushing bottle 130 may have a shape of revolution around an axis A2, optionally parallel to the axis A1.
  • the flushing bottle 130 is delimited by a side wall 131, for example cylindrical of revolution around the axis A2, with an outside diameter lower, for example much lower, than the inner diameter of the side wall 121 of the tank 120 so as to allow its introduction, and/or respectively its extraction, through the orifice 123A of the tank 120, together with the riser tube 160, when the cover 180 is placed on the tank 120 and/or respectively when this cover 180 is removed for maintenance or for refilling the fire extinguisher 100 used; downwardly, the wall 131 connects to a bottom wall 132, defining a lower zone of the flushing bottle 130 and having for example a convexity downwards, that is to say towards the bottom wall 122 of the tank 120 while, upwardly, it connects to a top wall 133 defining an upper zone of the flushing bottle 130 with a convex shape towards the cover 180; the bottom walls 132
  • top is defined relative to the axis A2 as towards the top wall 133 of the flushing bottle 130
  • bottom is defined relative to the axis A1 as towards the bottom wall 132 of the flushing bottle 130.
  • the walls of the flushing bottle 130 are sealed and mutually connected in a sealed manner, except that the top wall 133 is connected to a tubular neck 133A, of revolution around the axis A2, projecting from its connection with the top wall 133, and opened by an outlet orifice 133B for the propellant gas 300 and the additive 400.
  • the outlet orifice 133B is sealed by a sealed cover 134 of the flushing bottle 130, fixed in a sealed but preferably removable manner to the flushing bottle 130 around the outlet orifice 133B.
  • the seal 134 is chosen so that it can be easily perforated by the needle 141C, on the one hand, but the seal 134 and its attachment are chosen so as to withstand the overpressure prevailing inside the flushing bottle 130 in comparison with the inside of the tank 120 before perforation under normal storage conditions of the extinguisher, on the other hand; the seal 134 is preferably turned to break as a priority, that is to say preferentially at the flushing bottle 130, in the event of abnormally high overpressure therein, in order to avoid an explosion of the flushing bottle 130 in such a case.
  • the propellant gas 300 and the additive 400 escape from the flushing bottle 130 through the outlet orifice 133B towards the conduit 184 towards the space located inside the tank 120 but outside the flushing bottle 130, respectively to pressurize the liquid 200 and to mix with it.
  • This mixing of the additive 400 with the liquid 200 is facilitated by the use of a mixing tube 150 sealed at the outlet 184B of the conduit 184 connecting in a sealed manner, for example by fitting into this conduit 184.
  • the sealed mixing tube 150 for example rectilinear, thus having an open upper end 150A directly secured to the outlet 184B and a lower end 150B open downwards and located in the reservoir 120 also immersed in the liquid 200, preferably above, relative to the bottom wall 122 of the reservoir 120, the lower end 160A of the riser tube 160 but within the liquid 200 and for example halfway up the latter.
  • the mixing tube 150 has a submerged section 152 in the liquid to be sprayed 200 and opening through its outlet 150B and a non-submerged section 153 into the expansion chamber 120'.
  • the mixing tube 150 has one or more orifices, for example lateral or lateral, 153A relative to the axis A1 to release at least in part the contents of the flushing bottle 130 directly into the expansion chamber 120' of the tank 120.
  • the lateral orifice 153A is formed on the non-immersed section 153.
  • the radial orifice 153A is here radial with respect to the axis A1, but it could take any orientation along a secondary axis intersecting the axis A1.
  • two orifices 153A are formed passing right through the wall of the mixing tube 150 in the same direction.
  • the additive 400 and the propellant gas 300 tend to collect respectively in the lower zone of the flushing bottle 130 and in the upper zone thereof, it is preferably ensured that the additive 400 is completely expelled from the flushing bottle 130, before the propellant gas 300 escapes therefrom, by providing inside the flushing bottle 130 a sealed dip tube 135 having an upper end 135A connected in a sealed manner to the neck 133A, for example by force fitting therein, and an open lower end 135B, for example cut at a bevel, in the lower zone of the flushing bottle 130 in order to immerse in the additive 400 practically until it is completely expelled.
  • the use of the extinguisher 100 is carried out in the following manner, the handle 142 being assumed to be initially immobilized by means of the pin 143 in its high position in which the bearing surface 142A does not stress the rod 141, itself in the high position, the cover 134 being intact and sealingly closing the flushing bottle 130; all communication is initially assumed to be closed between the flexible lance tube 190 and the diffusion system or diffuser 1, by the closing means 191.
  • the contents of the flush bottle 130 are then released simultaneously through the outlet 150B of the mixing tube 150 to be mixed with the liquid 200 and, furthermore, through the side orifice 153A to be released into the expansion chamber 120' of the tank 120.
  • the compression chamber is then pressurized by the mixture from the flushing bottle 130 so that the pressure contained in this chamber in turn pressurizes the contents of the tank, thus promoting the rise of the liquid 200, itself mixed with the contents of the flushing bottle 130 through the outlet 150B of the mixing tube 150, through the rise tube 160.
  • the dispersion of the extinguishing additive is then improved.
  • the propellant gas 300 causes the expulsion of the additive 400 which, rising through the dip tube 135, traveling through the conduit 184 and descending through the outlet 184B of the latter and through the mixing tube 150, reaches the liquid 200 with which it mixes, then the gas 300 itself, following the same path, spreads inside the reservoir 120, outside the flush bottle 130, to pressurize the mixture of the liquid 200 and the additive 400.
  • the operator can then, by acting on the handle 191A, release at will the mixture of the liquid 200 and additive 400, which rises through the riser tube 150 under the pressure of the compressed gas 300 and escapes, in a controlled manner by acting on the handle 191A, through the diffuser 1 which ensures its dispersion.
  • the extinguisher 100 When the extinguisher 100 is empty or practically empty of liquid 200, it can be recharged by removing the cover 180, filling with liquid through the orifice 123A, replacing the assembly formed by the flushing bottle 130, then empty, and the perforated seal 134, by means of a new flushing bottle 130 containing the desired quantities of pressurized gas 300 and additive 400, closed by a new seal 134 retained at the orifice 133B of the flushing bottle 130, and reassembling the cover 180 thus reequipped.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Fire-Extinguishing Compositions (AREA)

Claims (9)

  1. Feuerlöscher (100), umfassend:
    - einen abgedichteten Behälter (120), der sich entlang einer Achse (A1) erstreckt, die in einer bestimmten Verwendungsausrichtung des Feuerlöschers (100) senkrecht im Verhältnis zu einer horizontalen Ebene verläuft oder einige Grad Neigungswinkel im Verhältnis zur Senkrechten bildet, wobei der abgedichtete Behälter (120) eine zu versprühende Flüssigkeit (200), beispielsweise Wasser, umfasst, wobei der Behälter so eingerichtet ist, dass er eine Ausdehnungskammer (120') umfasst, die von einem Teil des Behälters (120) gebildet wird, der nicht mit der zu versprühenden Flüssigkeit (200) gefüllt ist,
    - eine abgedichtete Treibmittelflasche (130), die ein unter Druck stehendes Treibgas (300) umfasst, das als Treibmittel für die zu versprühende Flüssigkeit (200) verwendet wird, wobei die Treibmittelflasche (130) im Inneren des Behälters (120) untergebracht ist und für das Treibgas (300) einen Auslass (133B) aufweist, der fluidisch mit dem Inneren des Behälters (120) verbunden ist,
    - ein Mischrohr (150), das fluidisch mit dem Auslass (133B) der Treibmittelflasche (130) verbunden ist und einen Auslass (151B) aufweist, der zum Eintauchen in die zu versprühende Flüssigkeit (200) vorgesehen ist,
    - wobei der Feuerlöscher ein fluorfreies Additiv (400) für die zu versprühende Flüssigkeit (200), beispielsweise ein Löschmittel, und Aufnahmemittel (130) für das fluorfreie Additiv (400) umfasst, wobei diese Aufnahmemittel innerhalb des Behälters (120) untergebracht und geeignet sind, das Additiv (400) von der zu versprühenden Flüssigkeit (200) zu isolieren,
    dadurch gekennzeichnet, dass:
    - das Mischrohr (150) mindestens eine Öffnung (153A), die im Verhältnis zur Achse (A1) seitlich liegt, aufweist, die so eingerichtet ist, dass sie den Inhalt der Treibmittelflasche (130) mindestens teilweise in die Ausdehnungskammer (120') des Behälters (120) freigibt,
    - die Treibmittelflasche (130) die Aufnahmemittel (130) für das Additiv (400) bildet, wobei die Treibmittelflasche (130) das unter Druck stehende Treibgas (300) und das fluorfreie Additiv (400) ohne Trennwände zwischen ihnen enthält, so dass das Treibgas (300) das Additiv (400) über den Auslass (133B) der Treibmittelflasche (130) für das Treibgas (300) in Richtung der zu versprühenden Flüssigkeit (200) mitführt.
  2. Feuerlöscher (100) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass das Mischrohr (150) eine einzige Öffnung (153A), die im Verhältnis zur Achse (A1) seitlich liegt, aufweist, die so eingerichtet ist, dass sie den Inhalt der Treibmittelflasche (130) mindestens teilweise in die Ausdehnungskammer (120') des Behälters (120) freigibt.
  3. Feuerlöscher (100) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Öffnung (153A) einen Durchmesser zwischen 0,5 Millimetern und 2,5 Millimetern, vorzugsweise zwischen 1 Millimetern und 2 Millimetern, noch bevorzugter gleich 1,5 Millimetern, aufweist.
  4. Feuerlöscher (100) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Mischrohr (150) einen Innendurchmesser zwischen 3 Millimetern und 10 Millimetern, vorzugsweise zwischen 6 Millimetern und 7 Millimetern, noch bevorzugter gleich 5 Millimetern, aufweist.
  5. Feuerlöscher (100) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass er ferner Folgendes umfasst:
    - ein Steigrohr (160), das mit dem Behälter (120) verbunden ist, wobei das Steigrohr (160) einen Auslass (160A) aufweist, der im Behälter (120) für die zu versprühende Flüssigkeit (200) angeordnet und so eingerichtet ist, dass er fluidisch mit der Umgebungsluft verbunden ist,
    - Verschlussmittel (191) zum dichten Verschließen oder Öffnen des Auslasses (160A) des Steigrohrs (160), um die zu versprühende Flüssigkeit (200) freizugeben.
  6. Feuerlöscher nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass der Auslass (150B) des Mischrohrs (150) innerhalb des Behälters (120) auf einer ersten Ebene des Behälters (120) mündet, die im Verhältnis zu einer zweiten Ebene des Behälters (120) zurückgesetzt ist, von der der Auslass (160A) des Steigrohrs (160) mündet.
  7. Feuerlöscher (100) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Steigrohr (160) im Verhältnis zur Achse (A1) keine seitliche Öffnung aufweist.
  8. Feuerlöscher (100) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Additiv (400) eine Flüssigkeit ist.
  9. Feuerlöscher nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Auslass (150B) des Mischrohrs (150) um einen Wert zwischen 30 Millimetern und 350 Millimetern, vorzugsweise um einen Wert zwischen 150 Millimetern und 310 Millimetern, von einer Bodenwand (122) des Behälters (120) zurückgesetzt ist.
EP24159461.3A 2023-02-24 2024-02-23 Verbesserter feuerlöscher zur dispersion eines fluorfreien löschmittels Active EP4420740B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2301722A FR3146071A1 (fr) 2023-02-24 2023-02-24 Extincteur d’incendie améliorié pour la dispersion d’un agent d’extinction sans fluor

Publications (3)

Publication Number Publication Date
EP4420740A1 EP4420740A1 (de) 2024-08-28
EP4420740C0 EP4420740C0 (de) 2025-08-20
EP4420740B1 true EP4420740B1 (de) 2025-08-20

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Family Applications (1)

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FR (1) FR3146071A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025178781A1 (en) * 2024-02-20 2025-08-28 Robert Valentine Kasowski Fire extinguishing system utilising fluorine-free foam formation delivered via axial-flow hollow-cone nozzle

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2779656B1 (fr) * 1998-06-15 2000-08-11 Extincteurs Harden Tube detasseur pour extincteur a gaz auxiliaire propulseur de poudre extinctrice, tete d'extincteur associee audit tube et extincteur comprenant une telle tete
BR112012011447A2 (pt) 2009-10-30 2017-12-12 Basf Se composição adequada para a produção de extintores espumantes
FR2965486A1 (fr) * 2010-10-01 2012-04-06 Franck Brouzes Extincteur a eau avec additif en poudre
WO2016086321A1 (de) * 2014-12-05 2016-06-09 Jp Sicherheitstechnik Gmbh Anordnung zur herstellung eines löschmittel- oder wirkstoffschaumes
FR3099063B1 (fr) * 2019-07-26 2021-07-02 Autoliv Dev Extincteur pyrotechnique pour véhicule
BE1028042B1 (fr) 2020-02-10 2021-09-06 Uniteq S A Buse d’extinction d’incendie et extincteur
BE1029051B1 (fr) 2021-01-22 2022-08-29 Uniteq S A Formulation d’extinction d’incendie à moussage amélioré

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EP4420740C0 (de) 2025-08-20
FR3146071A1 (fr) 2024-08-30

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