EP4101509B1 - Tête de pulvérisation à redressement automatique - Google Patents

Tête de pulvérisation à redressement automatique

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Publication number
EP4101509B1
EP4101509B1 EP22178061.2A EP22178061A EP4101509B1 EP 4101509 B1 EP4101509 B1 EP 4101509B1 EP 22178061 A EP22178061 A EP 22178061A EP 4101509 B1 EP4101509 B1 EP 4101509B1
Authority
EP
European Patent Office
Prior art keywords
spray head
liquid
shell
extinguishing
underside
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
EP22178061.2A
Other languages
German (de)
English (en)
Other versions
EP4101509C0 (fr
EP4101509A1 (fr
Inventor
Björn Kusznierz
Mario Kaule
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP4101509A1 publication Critical patent/EP4101509A1/fr
Application granted granted Critical
Publication of EP4101509C0 publication Critical patent/EP4101509C0/fr
Publication of EP4101509B1 publication Critical patent/EP4101509B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/02—Nozzles specially adapted for fire-extinguishing
    • A62C31/05—Nozzles specially adapted for fire-extinguishing with two or more outlets
    • 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
    • A62C3/02—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
    • A62C3/0292—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires by spraying extinguishants directly into the fire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • 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
    • A62C3/02—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
    • A62C3/0257—Fire curtains, blankets, walls, fences
    • A62C3/0264—Fire curtains, blankets, walls, fences by creating water curtains

Definitions

  • the present invention relates to a spray head for liquid distribution, comprising a distribution chamber arranged in a semi-spherical bowl equipped with a plurality of outlet nozzles, and a pipe section leading to the distribution chamber, the other end of which is provided with a connection for a liquid supply line.
  • the spray head according to the invention requires no fixation during extinguishing, neither by attachment to other objects nor by being held by a person, and it automatically rights itself when lying on the ground with the upper bowl containing the outlet nozzles facing upwards, so that it can distribute the liquid into the air and the surrounding area.
  • the invention is therefore based on the objective of providing a particularly suitable device and a method for spatial liquid distribution for such applications, wherein the device can preferably be placed near the fire without a person having to go to the disposal point, the device aligns itself there independently in such a way that it distributes the liquid in a wide radius around itself and can be operated without fastening or holding by firefighters during the distribution of the liquid.
  • a spray head with the features of claim 1 a method with the features of claim 7, and a spray head for use in a method whose process steps are specified in claim 7 are provided. Further preferred embodiments are characterized in the dependent claims. Furthermore, a use of the spray head according to the invention for firefighting with the features of claim 9 is also provided.
  • the present invention provides a self-righting spray head for liquid distribution.
  • the spray head comprises a distribution chamber arranged between a dome-shaped shell equipped with a plurality of outlet nozzles and a closed underside connected to the shell, suitable as a support surface.
  • a pipe section leading to the distribution chamber is provided at its other end with a connection for a liquid supply line.
  • the dome-shaped upper surface corresponds to a spherical segment.
  • the pipe section is arranged above the underside of the spray head or distribution chamber and is provided at its end facing away from the distribution chamber with a connection for a liquid supply line.
  • This connection has a coupling that allows for pressure-tight connection of a liquid supply, e.g., a hose, equipped with a corresponding coupling counterpart.
  • the underside of the spray head or distribution chamber has a less pronounced outer curvature than the shell.
  • the The underside is curved inwards (i.e., towards the interior of the distribution chamber). According to the invention, the underside is not curved but flat.
  • the self-erecting spray head according to the invention is characterized in that the distribution chamber has a cylindrical or partially conical section between the shell and the underside, which is enclosed by a side wall, wherein the pipe section leading to the distribution chamber is arranged with its end facing the distribution chamber in this side wall.
  • the nozzles can be arranged in different patterns on the spray head according to the invention. Preferably, no nozzles are arranged on the underside, but they can be arranged on the bowl and optionally also on the side wall if one exists between the bowl and the underside. Furthermore, the spray head provided herein is designed such that the nozzles are arranged uniformly on the bowl.
  • the nozzles can be designed as bores in the spray head or be housed in separate nozzle casings, which are then inserted into corresponding openings in the spray head. Due to greater flexibility, the nozzles are preferably inserted into openings in the housing together with their corresponding nozzle casings.
  • the nozzles in such housings can be either permanently or interchangeably installed. Unless otherwise specified, the terms "nozzle” and “nozzle casing” are used interchangeably in the following text. Permanent installation is preferably achieved by means of a plug with a through opening in the interior, so that when the nozzle is inserted into the housing, one end of the opening faces inside the spray head and the other end faces outwards.
  • the outer diameter of the outer nozzle is chosen to be slightly smaller than the circumference of the opening in the bowl into which the spray head is to be inserted, so that even when liquid is supplied under pressure to the spray head, it remains in the bowl and the liquid only escapes through the opening in the outer nozzle and not through the area between the outer nozzle and the opening in the bowl.
  • at least their outer wall, or the entire external nozzle is made of an elastic material, or such an elastic material is placed between the nozzle and the opening, e.g. in the form of a seal.
  • the nozzles have an external thread, and the openings of the bowl are provided with matching internal threads, such that the nozzles can be connected to the bowl by screwing them into the openings.
  • the nozzles also have a radially extended collar extending from the external thread, which supports the nozzles against the outside of the bowl.
  • the collar is designed with multiple edges so that a wrench can be applied to it and used to screw the nozzles into and out of the bowl.
  • a handle is arranged on the bowl or on the side wall of the spray head. If such a handle is present, it is preferably positioned opposite the tube section when located on the side wall. The handle makes it easier to transport the spray head or to throw it more easily to place it near a fire.
  • the spray head disclosed herein is intended for use in extinguishing fires.
  • the spray head is particularly preferably intended for use in forest or vegetation fires.
  • Various hoses can be used as the liquid supply, preferably a fire hose and preferably an extinguishing agent, preferably water.
  • the spray head disclosed herein is characterized in that approximately 100-1000 liters of a liquid can be sprayed through the spray head per minute.
  • a self-righting spray head as disclosed herein for extinguishing and/or preventing fires, preferably forest or vegetation fires, is also provided herein.
  • the spray head described herein is provided for such use.
  • the present invention generally relates to a spray head for liquid distribution, having a top surface on which a plurality of openings for distributing a liquid in the vicinity of the spray head are provided.
  • the openings are designed as nozzles or discharge nozzles.
  • the top surface of the spray head which is also referred to herein as the shell (the terms shell and top surface are used interchangeably herein), is according to
  • the spray nozzle is convex on the outside (viewed from inside the nozzle).
  • the curvature of the top surface has a dome-like shape. This allows liquid to be sprayed over a spatial angular range of up to 180°.
  • the spray head according to the invention has a closed underside suitable as a support surface and connected to the shell.
  • a distribution chamber is arranged between the shell and the underside, which distributes the liquid conveyed into the spray head to the nozzles.
  • the liquid is introduced through a pipe section, one end of which leads to or is connected to the distribution chamber.
  • connection for a liquid supply line At the other end of the pipe section, it is provided with a connection for a liquid supply line.
  • this pipe section is straight.
  • the pipe section is further arranged above the underside.
  • the pipe section At its end facing away from the distribution chamber, the pipe section is provided with a connection for a liquid supply line.
  • the connection can be designed differently, depending on which liquid supply line is used and what type of connection it has. It is only necessary that the pipe section and the liquid supply line have compatible connections or couplings suitable for conveying a pressurized liquid from the liquid supply line into the pipe section and thus ultimately into the distribution chamber, without significant liquid leakage or pressure loss occurring at the connection point between the supply line and the pipe section.
  • this connection is designed as a coupling for pressure-tight connection of a liquid supply line equipped with a corresponding coupling counterpart.
  • a hose is particularly preferred as the liquid supply line, even more preferably a hose with dimensions exceeding those of a garden hose (up to 1 inch/2.54 cm inner diameter), and most preferably a fire hose. Therefore, a hose coupling, even more preferably a pressure coupling, and especially preferably a coupling for connecting a fire hose (fire hose coupling), is used.
  • the specific selection of the fire hose coupling depends on the coupling used by the respective fire department and is partly country-specific.
  • any coupling according to the The coupling used is those conforming to the respective national standards, e.g., a threaded coupling, as used in the USA and Great Britain, or a bayonet or lug coupling, whether a Storz, Guillemin, Barcelona, or Gost coupling.
  • a so-called Storz coupling is used.
  • Data for possible Storz couplings that can be used in the spray head disclosed herein are listed in the table below.
  • a Storz coupling of size C 52 mm according to DIN 14302 is used on the spray head described herein, and a fire hose with the matching counterpart of the coupling according to DIN 14811 of BGG/GUV-G 9102 is used.
  • the spray head according to the invention is designed such that its underside has a lesser outward curvature than the shell.
  • the underside is curved inwards and, according to the invention, flat.
  • the spray head according to the invention is characterized in that it is self-aligning.
  • self-aligning in this context means that, due to its design described herein, the position of the nozzles, the domed top, and the water pressure, the extinguishing mine automatically aligns itself. This means a lower risk for emergency personnel, as they do not have to enter the fire.
  • the mine is not lying with its underside on the ground, it is rotated by the recoil action of the liquid exiting the nozzles.
  • the spray head rotates so that it is facing down, or rests on the ground with its underside facing down.
  • the pressure used is that typically employed by the respective fire department.
  • the spray head After the liquid is introduced into the hose under pressure and exits the nozzles, the spray head automatically aligns itself with its top facing away from the ground, or with its underside on the ground. This self-alignment can be accelerated by briefly introducing the liquid into the hose at a higher pressure than is normally typical for the hose being used. As described in an example below, German fire departments typically introduce extinguishing fluid into the fire hose at a pressure of 5 bar. The spray head according to the invention, after the liquid is introduced through the fire hose at this pressure, aligns itself so that its underside rests on the ground.
  • the pressure can also be increased slightly for a short time, e.g., by 10, 15, 20, 25, 30, 35, 40, 45, or 50 percent.
  • the spray head then remains oriented with its underside facing the ground, at least as long as the liquid continues to be forced through under pressure, and in most cases even after the flow is stopped or interrupted.
  • the spray head according to the invention is preferably made of a material that gives the spray head sufficient strength to withstand the pressure of the liquid being forced through it or to retain its shape even after an impact from being thrown.
  • the material used is preferably such that selected for its ability to withstand prolonged contact with liquids, extinguishing fluids and especially water, without decomposing or being destroyed.
  • the spray head according to the invention is made of metals or alloys, which are preferably protected against corrosion by being corrosion-resistant and/or corrosion-protected. Resistance can preferably be ensured by the fact that the material itself does not rust, or hardly rusts, under the influence of extinguishing liquids such as water. Protection can be ensured by coating the material from which the spray head is made with other suitable substances/materials that prevent corrosion.
  • the spray head according to the invention is made of a stainless metal, an alloy, or so-called unalloyed steel. Iron is particularly preferred as the metal, and steel, stainless steel, or brass as the alloy.
  • So-called black steel or unalloyed steel is also particularly preferred as the material for the spray head; this material, as the name suggests, can optionally be understood as an intermediate form between a pure metal and an alloy.
  • this refers to a steel in which the concentrations of elements other than iron do not exceed a predetermined value.
  • the carbon steel used should contain a maximum of 0.1% aluminum (Al), a maximum of 0.1% cobalt (Co), a maximum of 0.3% chromium (Cr), a maximum of 0.3% nickel (Ni), a maximum of 0.4% copper (Cu), and a maximum of 0.5% silicon, with none of these elements exceeding these values.
  • the proportions of these elements are specified in the standard DIN EN 10020, and the material preferably used for manufacturing the spray head preferably complies with this standard.
  • a further advantage of selecting such materials is that the spray head has a higher weight, which makes it more stable even when placed upside down on the ground.
  • the walls of the spray head are of varying thicknesses, ranging from approximately 2 to 10 mm, preferably from approximately 3 to 8 mm, and most preferably from approximately 4 to 6 mm.
  • the walls of the spray head according to the invention are preferably about 6 to 8 mm thick; with stainless steel, the thickness can be reduced by about 2 mm, or stainless steel When used, the walls of the spray head according to the invention are preferably about 4 to 8 mm thick.
  • the spray head can be made of a corrosion-resistant base material, as described above, which is then coated with a rust-protective coating.
  • a material that is inherently rust-resistant is preferred, as coatings generally do not adhere permanently to the coated surfaces and cannot provide sufficient protection.
  • only one side of the spray device i.e., only the inside or only the outside, can be coated.
  • Different coatings can also be used for the inside and outside.
  • the outside is coated with a material that, according to the prevailing customs or standards in a given region, is intended for use as firefighting equipment. This saves the user time in stressful firefighting situations by allowing them to identify firefighting equipment solely based on its color. Therefore, in a preferred embodiment, the outer surface of the spray head, or parts thereof, is coated with a material whose characteristic is a specific color, preferably red, in particular a red corresponding to the RAL 3000 color code.
  • the distribution chamber between the bowl and the underside has a cylindrical or partially conical section enclosed by a side wall.
  • this side wall preferably faces, or converges, at a right angle to, the underside, while the top then forms a dome on the other end of the surrounding side wall.
  • the pipe section, with its end facing the distribution chamber, is arranged within the side wall if one is present.
  • the outlet nozzles are located on nozzle housings which are in The nozzles are arranged in openings in the bowl.
  • the nozzle housings of the outlet nozzles are each provided with an external thread, which is screwed into a corresponding threaded opening in the bowl.
  • the terms nozzle housing and outlet nozzle are used interchangeably.
  • the nozzles are arranged on the spray head's housing. Different arrangements and numbers of nozzles can be selected to influence the direction in which the extinguishing liquid is sprayed and/or the flow rate of the extinguishing liquid.
  • the spray head described herein is designed such that the nozzles are evenly distributed on the housing.
  • the spray head can be equipped with between 4 and 100 nozzles, more preferably between 10 and 80, more preferably between 20 and 60, even more preferably between 25 and 50, and even more preferably between 30 and 48, and particularly preferably between 32 and 45 nozzles.
  • the amount of liquid sprayed per minute can be controlled by selecting the diameters of the nozzle openings. Particularly preferred diameters for this purpose are discussed below.
  • the nozzles are inserted into openings in the tray of the spray head described herein.
  • the nozzles can be connected to the spray head housing in various ways. This can be done permanently or in a flexible, interchangeable manner. Preferably, a mounting method is chosen that allows the nozzles to be firmly attached to the housing but also to be detached again, i.e., the flexible form. According to the invention, openings are provided in the housing for this purpose, in which the nozzles can be attached.
  • the nozzles in the spray head described herein are each provided with an external thread, and the openings in the bowl are provided with corresponding internal threads. This design of both the nozzles and the bowl allows the nozzles to be connected to the bowl by screwing them into the openings.
  • the nozzle housing features a radially widened collar that braces the nozzle housing against the outer surface of the housing.
  • This collar can be designed to accommodate a wrench, preferably a multi-sided one, to facilitate the replacement of the nozzle with a different nozzle that produces a different spray pattern and/or allows a different flow rate.
  • This design allows a suitable wrench to be used to tighten and loosen the nozzles in the housing.
  • the spray head described herein is further designed such that a handle is arranged on the housing or on the side wall of the spray head.
  • the handle When arranged on the side wall, the handle is preferably positioned opposite the tube section.
  • the handle allows the spray head to be easily transported and held, as well as placed at a location from which the fire is to be extinguished or prevented.
  • the advantages of the spray head are that it allows emergency personnel to be deployed to more critical locations.
  • Another advantage arises from the fact that the spray head does not have to be placed at its deployment location, but can be "thrown” into the danger zone, thus avoiding unnecessary risk to emergency personnel.
  • the range varies depending on the force exerted by the thrower. It is also possible to wrap the spray head inside the hose and, with a little practice, unroll it so that it lands at the deployment point.
  • the spray head described herein enables large-volume liquid distribution and therefore offers new possibilities for firefighting operations, such as fighting forest fires, ship fires, warehouse fires, or tunnel fires.
  • the spatial and thus non-directional liquid distribution offers significant advantages in the event of uncontrolled product leaks in chemical plants, for example, to suppress hazardous vapors and gases, or for the preventative cooling of containers at risk of thermal overheating.
  • Another application is the binding of dust by the finely sprayed liquid particles, such as during dust-intensive activities like blasting or demolition work.
  • a further application is the cleaning of large areas, particularly dust-laden surfaces.
  • the spray head described herein is provided, wherein the spray head is intended for use in extinguishing and/or preventing fires, preferably forest or vegetation fires.
  • the liquid is preferably an extinguishing agent, and even more preferably water.
  • the spray head described here allows for the dispensing of varying amounts of liquid within a specific timeframe.
  • Firefighting is often carried out using tank trucks containing the extinguishing agent.
  • a fire engine remains near the fire, is connected to a tank truck, and sprays the extinguishing agent onto the fire.
  • one or more tank trucks travel to a liquid source, are refilled, and return to the fire engine.
  • the extinguishing agent, or rather the spray head is designed to dispense a specific amount of liquid per minute, ensuring that the fire is extinguished and the liquid in the tank truck is not depleted before one or more additional tank trucks arrive with supplies.
  • the amount of liquid transported in a tank truck varies and is sometimes country-specific.
  • the aim is to ensure that this amount is not dispensed in less than 15 minutes.
  • the amount of liquid sprayed is typically dispensed at a certain rate, as this is usually the time it takes for another tanker truck to arrive and connect to the fire engine. Naturally, the spraying rate is adjusted to the specific circumstances. If the tanker trucks can transport the liquid more quickly, it can be sprayed more rapidly, for example, in less than 15 minutes, or in 10 minutes. If the tanker trucks take longer, the spraying rate is reduced so that the entire quantity transported in the tanker truck is dispensed only after 15 minutes, or in 20 minutes, for example.
  • the present invention makes it possible to regulate the amount of liquid sprayed per minute by selecting the number of external nozzles and the diameter of the openings of the external nozzles.
  • the openings of the external nozzles have a diameter of between 0.5 and 10 mm, more preferably between 0.5 and 7 mm, more preferably between 1 and 5 mm, and particularly preferably between 2 and 4 mm, and especially preferably between 3 and 4 mm.
  • the spray head disclosed herein is designed such that approximately 30-1000 liters, more preferably approximately 40-800 liters, more preferably approximately 45-400 liters, even more preferably approximately 50-250 liters, and particularly preferably approximately 50-200 liters of a liquid can be sprayed through the spray head per minute.
  • a quantity of liquid it is possible to safely fight or extinguish fires on an area of approximately 50 to 200 square meters using the spray head according to the invention, and/or to protect the corresponding area from fire (to prevent fire) by preemptively spraying it with a liquid, so that a fire from an adjacent area cannot spread to the protected area, or can only spread later than if no preemptive spraying had taken place.
  • the spray head By spraying the liquid through the spray head, the area surrounding the spray head is sprayed with the liquid in the process described herein, thereby preventing a fire or extinguishing an existing fire.
  • the spray head is moved to a location according to the procedure, and an extinguishing liquid is sprayed from the spray head into the surrounding area, so that a fire cannot, or preferably only can, start in the vicinity or spread to this area from neighboring areas.
  • a fire hazard can regularly be considered no longer present or is not expected if there is no fire in the immediate vicinity of the area to be protected, or at least none that is apparent that could spread to the area to be protected.
  • the method is further characterized in that the spray head does not require any fixation during the process. It is also according to the invention that the pressure of the supplied extinguishing liquid causes the spray head to right itself in such a way that the underside of the spray head rests on the ground and the extinguishing liquid is released into the vicinity of the spray head.
  • a fire hose is used as the hose in the method. Bringing the spray head, coupled to a hose, into the vicinity of the fire can preferably be accomplished by throwing or rolling the spray head connected to the hose near, or at least in the direction of, the fire.
  • the present invention also relates to the spray head described herein for use in the described method.
  • the present invention relates to the use of a self-righting spray head as disclosed herein for extinguishing and/or preventing fires.
  • this use is directed towards extinguishing and/or preventing surface fires, and particularly preferably towards extinguishing or preventing forest or vegetation fires.
  • the present invention also relates to the spray head described herein for the use described above.
  • a test spray head was made from 6mm thick iron, with a dome-shaped top (sphere segment) with several nozzles evenly distributed over the top and screwed to the top, a flat bottom and a side wall running perpendicularly from the top down to the bottom.
  • the tested spray head was identical in shape to the spray head shown in Figures 1 and 2.
  • the diameter of the spray head, measured at the base, was 320 mm, and the height of the spray head, from the base to the top, was [missing information].
  • the apex of the domed top is 140 mm.
  • the total weight of the tested spray head was 3 kg.
  • the test spray head was equipped with 36 nozzles, had a carrying handle, and a C 52mm water connection to which a fire hose with a matching C/52 coupling according to DIN 14811 of BGG/GUV-G 9102 was connected.
  • the 36 nozzles consist of TD A2-70 stainless steel screws with a 3mm hole, enabling a water spray rate of approximately 200-800 liters per minute.
  • the spray nozzle was connected to a fire engine via a fire hose and placed upside down, either directly on the ground or in a ditch at an angle of approximately 30 degrees. Water was then pumped into the nozzle at varying pressures. Each time the nozzle reached the standard pressure of approximately 5 bar used for extinguishing fires, it rotated 180 degrees, landed on its underside, and remained upside down on the ground due to the continued spraying action. This automatic rotation could be accelerated by briefly increasing the pressure of the liquid (extinguishing water in this experiment) through the nozzle to approximately 6 or 7 bar. After the rotation, the pressure could be reduced, either to the standard 5 bar used in Germany or even lower. The nozzle remained stable on its underside on the ground, spraying the liquid into its surroundings.
  • the area sprayed by the extinguishing water around the nozzle was approximately circular and covered an area of about 50 square meters.
  • the test confirmed that the spray head rotates independently even in an unfavorable starting position as soon as liquid is sent through it under pressure. will be and that the area around it can be moistened with a sufficient amount of liquid to prevent a fire.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Nozzles (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Claims (9)

  1. Tête de pulvérisation (1) pour la distribution de liquide, comportant une face supérieure (8), à savoir une coque (5), pourvue d'une pluralité de buses de sortie (10) et une face inférieure (7) fermée, appropriée comme surface d'appui et reliée à la coque (5), la face inférieure (7) étant plane, une chambre de distribution (4) étant disposée entre la coque (5) et la face inférieure (7), et comportant une section de tube (3) menant à la chambre de distribution (4), qui est muni à son autre extrémité d'un raccord pour une conduite d'alimentation en liquide, la section de tube (3) est disposée au-dessus de la face inférieure (7) et est pourvue, à son extrémité opposée à la chambre de distribution (4), d'un raccord pour une conduite d'alimentation en liquide, lequel raccord comporte un raccord (2) pour le raccordement résistant à la pression d'un tuyau d'incendie pourvu d'un coupleur correspondant,
    - les buses de sortie (10) étant disposées de manière régulière sur la coque (5)
    - les buses de sortie (10) étant insérées dans des ouvertures de la coque (5) ; et
    - les buses de sortie (10) étant chacune pourvues d'un filetage extérieur et les ouvertures de la coque (5) étant pourvues de filetages intérieurs correspondants, de telle sorte que les buses de sortie (10) peuvent être reliées à la coque (5) en les vissant dans les ouvertures de celle-ci ;
    - la face supérieure (8), à savoir la coque (5), est de forme bombée ;
    - les buses de sortie (10) présentent, dans le prolongement du filetage extérieur, une collerette élargie radialement (11) avec lequel les buses de sortie (10) s'appuient respectivement contre la face extérieure de la coque (5) ;
    - la chambre de distribution (4) entre la coque (5) et la face inférieure (7) présente une section cylindrique ou partiellement conique (6) qui est entourée par une paroi latérale, caractérisée en ce que la section de tube (3) est disposée dans la paroi latérale avec son extrémité tournée vers la chambre de distribution (4) ; et
    - une poignée (9) est disposée sur la coque (5) ou sur la paroi latérale de la tête de pulvérisation (1), la poignée (9) étant de préférence disposée en face de la section de tube (3) lorsqu'elle est disposée sur la paroi latérale.
  2. Tête de pulvérisation (1) selon la revendication 1, la tête de pulvérisation (1) étant conçue pour s'aligner automatiquement, la tête de pulvérisation (1) étant alignée par l'effet de recul du liquide sortant des buses de sortie (10) avec la face inférieure (7) reposant sur le sol.
  3. Tête de pulvérisation (1) selon l'une des revendications précédentes, le raccord (2) étant un raccord de tuyau, de préférence un raccord fileté ou un raccord à baïonnette.
  4. Tête de pulvérisation (1) selon la revendication 3, le raccord étant un raccord à baïonnette, de préférence un raccord Storz.
  5. Tête de pulvérisation (1) selon l'une des revendications 1 à 4, dans laquelle la collerette (11) est conçue de manière polygonale de telle sorte qu'une clé à molette peut être placée sur la collerette (11) et utilisée pour visser et dévisser les buses de sortie (10) dans la coque (5).
  6. Tête de pulvérisation (1) selon l'une des revendications précédentes, la tête de pulvérisation (1) étant destinée à être utilisée pour l'extinction et/ou la prévention d'incendies, de préférence d'incendies de forêt ou de végétation, et le liquide étant un liquide d'extinction, de préférence de l'eau.
  7. Procédé d'extinction et/ou de prévention d'incendies, de préférence d'incendies de forêt ou de végétation, le procédé comprenant les étapes suivantes :
    a) amener une tête de pulvérisation (1) selon l'une des revendications 1 à 6, raccordée à un tuyau d'incendie, à proximité de l'incendie ;
    b) activer l'alimentation en liquide d'extinction vers la tête de pulvérisation (1) de manière à ce que le liquide soit pulvérisé par celle-ci ;
    c) arrêter l'alimentation en liquide d'extinction lorsque l'incendie est éteint, que la tête de pulvérisation (1) doit être placée ailleurs et/ou que le liquide d'extinction est épuisé ;
    caractérisé en ce que la tête de pulvérisation (1) ne nécessite aucune fixation pendant le processus et se redresse d'elle-même sous la pression du liquide d'extinction alimenté, de telle sorte que la face inférieure de la tête de pulvérisation (1) repose sur le sol et que le liquide d'extinction soit libéré dans l'environnement de la tête de pulvérisation (1).
  8. Tête de pulvérisation (1) selon l'une des revendications 1 à 6, destinée à être utilisée pour l'extinction et/ou la prévention d'incendies, de préférence d'incendies de forêt ou de végétation, les étapes selon le procédé de la revendication 7 étant de préférence mises en œuvre pour l'extinction et/ou la prévention d'incendies.
  9. Utilisation d'une tête de pulvérisation (1) selon l'une des revendications 1 à 6 pour l'extinction et/ou la prévention d'incendies, de préférence d'incendies de forêt ou de végétation.
EP22178061.2A 2021-06-09 2022-06-09 Tête de pulvérisation à redressement automatique Active EP4101509B1 (fr)

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DE102014102438A1 (de) * 2014-02-25 2015-08-27 Iconos Vertriebs Gmbh Sprühkopf zur Flüssigkeitsverteilung

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US6123272A (en) * 1998-10-16 2000-09-26 Coltec Industrial Products Inc. Nozzle assembly
DE102007054761B4 (de) 2007-11-16 2011-01-20 Schmetz Gmbh Gasverteilerplatte für eine Heizkammer eines Ofens
DE202017002156U1 (de) 2017-04-25 2017-07-17 Rainer Gebhard Flächen-Sprinkler-Rohr zur Brandbekämfung
DE202019101208U1 (de) 2019-03-04 2020-06-05 Flughafen München GmbH Armatur zur Wasserabgabe
DE102020111549A1 (de) 2019-06-18 2020-12-24 Magnus Hirschfeld Armatur zur Brandbekämpfung und/oder zur Kühlung von brennenden Objekten

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