WO1997002863A1 - Extincteur et buse de pulverisation adaptee a cet extincteur pour la production d'un jet d'agent extincteur - Google Patents

Extincteur et buse de pulverisation adaptee a cet extincteur pour la production d'un jet d'agent extincteur Download PDF

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Publication number
WO1997002863A1
WO1997002863A1 PCT/EP1995/003511 EP9503511W WO9702863A1 WO 1997002863 A1 WO1997002863 A1 WO 1997002863A1 EP 9503511 W EP9503511 W EP 9503511W WO 9702863 A1 WO9702863 A1 WO 9702863A1
Authority
WO
WIPO (PCT)
Prior art keywords
jet
fire extinguisher
nozzle
tube
pipe
Prior art date
Application number
PCT/EP1995/003511
Other languages
German (de)
English (en)
Inventor
Albrecht Broemme
Original Assignee
Albrecht Broemme
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
Priority claimed from DE29510976U external-priority patent/DE29510976U1/de
Priority claimed from DE29510982U external-priority patent/DE29510982U1/de
Application filed by Albrecht Broemme filed Critical Albrecht Broemme
Priority to AU35640/95A priority Critical patent/AU3564095A/en
Publication of WO1997002863A1 publication Critical patent/WO1997002863A1/fr

Links

Classifications

    • 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
    • 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
    • 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

Definitions

  • the invention relates to a fire extinguisher which automatically expels its extinguishing agent content by stored pressure or pressure generated during commissioning and which comprises an extinguishing and propellant container, an actuating valve and a hose with a spray nozzle for an extinguishing agent jet.
  • Fire extinguishers are portable or mobile fire extinguishers which are used for immediate fighting, in particular small fires, and can also be handled by inexperienced people.
  • multi-fuel jet pipes are known in connection with extinguishing devices in which a second medium is used in addition to water; So far, they have hardly been able to find their way into fire protection technology.
  • air is used as the second medium in multi-component nozzles, the compressibility of the air is used for the internal admixture.
  • the air mixed with the water in front of the nozzle takes on the pressure of the water and the air bubbles are strongly compressed. When exiting the nozzle, the bubbles relax and tear the emerging jet. According to this method, a very fine atomization with a good throw distance
  • the object of the invention is therefore to create a fire extinguisher of the type mentioned at the outset with a multi-substance jet pipe for producing an aerosol-like water-carbon dioxide mixture with water droplets brought to freezing temperature in order to obtain better throwing distances.
  • the spray nozzle is designed as a multi-substance jet pipe for the use of extinguishing water in the form of a water mist as an aerosol, which has a centrally arranged main pipe for a compressed gas jet with a nozzle formed on one side and at least one side pipe opening into the main pipe at an angle with a nozzle-like design Pipe end for the supply of extinguishing water to the central compressed gas jet in the main pipe to generate a homogeneous, aerosol-like water mist jet.
  • the hose leading to the spray nozzle has at least one extinguishing water supply line and one supply line for the gas shaped medium that consists of carbon dioxide.
  • the extinguisher and propellant container of the fire extinguisher has a pressure container for extinguishing water and a container for holding pressurized carbon dioxide, which is cooled down by expansion in such a way that the water drops of the water-carbon dioxide mixture emerging from the multi-fuel jet pipe are frozen temperature are brought.
  • water (possibly with additives) is injected into the gas jet.
  • the water pressure at the nozzle remains in the normal pressure range for standardized fire-fighting centrifugal pumps.
  • This disperse water droplet-gas mixture is particularly suitable
  • the extinguishing effect here is based on the property of the inhibition effect: the extinguishing agent consists of homogeneously distributed water particles embedded in the gas (air or carbonic acid) in the order of magnitude of 30 to 50 micrometers, which pass into the reaction zone - between the pre and the lighting zone the flame - to be introduced.
  • the combustion process is a chain reaction, whereby short-lived radicals, active molecules and atoms occur which cause chain branching and thus further burning. If non-combustible, finely divided substances with a kinetic energy that corresponds to the course of the fire are introduced into their reaction zone in a flame, ie if artificial "walls" are erected, these active molecules and atoms transfer energy to the "walls". submit. Your own energy content - the internal energy - then becomes so low that it is no longer sufficient to continue the chain reaction by reacting these radicals together. The chain reaction stops and the flame goes out.
  • the principle of inhibition is therefore that a finely distributed extinguishing agent is introduced into the spatial flame.
  • the kinetic energy of the homogeneously distributed particles of aerosols must be so great that the entire source of the fire is detected and the number of extinguishing agent particles per unit volume exceeds a critical amount.
  • Fig.l a fire extinguisher partly in view, partly in a vertical section
  • FIG. 2 shows a schematic view of a multi-material jet pipe as a spray nozzle for the fire extinguisher
  • FIG. 3 shows the multi-component jet pipe in a vertical longitudinal section.
  • the fire extinguisher 50 shown in Fig.l consists of a cylindrical container 51 which has in its upper region an actuating valve 52 which is operatively connected to an actuating lever 53, which is connected to extinguishing and propellant containers in the interior of the container 21 and which can be provided with a manometer.
  • the container 51 has a handle 58 in its upper region.
  • a hose 54 is connected to the actuating valve 52 and carries a spray nozzle 55 at its free end.
  • the hose 54 is formed by a plurality of supply lines, which will be discussed in more detail below.
  • the supply of the extinguishing agent in the interior of the container 51 can take place via a riser pipe provided in the interior of the container and connected to the actuating valve 52.
  • the spray nozzle 55 at the free end of the hose 54 of the fire extinguisher 50 is designed as a multi-substance jet pipe 10 for the use of extinguishing water in the form of a water mist as an aerosol.
  • the multi-jet pipe shown in FIG. 2 and designated 10 consists of a main pipe 11 with a further shut-off valve 12 and with a nozzle 13 provided at the outlet end for the generation of a homogeneous water mist jet.
  • Pressurized gas is supplied to the main pipe 11 in the direction of arrow X.
  • a side pipe 15 opens into the main pipe 11, through which extinguishing water in the direction of the arrow XI - optionally with additives - radially from the outside, injecting the compressed gas jet guided centrally through the main pipe 11, namely at an angle from one or more sides, in the latter case in the main pipe 11 opens several side pipes 15, 15 ', via which the compressed gas jet Extinguishing water is supplied.
  • These side tubes 15, 15 ' are arranged radially to the main tube 11 and are at an angle to it.
  • Both the main pipe 11 and the side pipes 15, 15 'of the multi-substance jet pipe 10 are connected via feed lines 56, 57 to containers 59, 59' formed or arranged in the interior of the container 51 of the fire extinguisher 50, of which the container 59 is below Pressurized extinguishing water takes up, while the container 59 'is intended for the reception of pressurized carbon dioxide in connection (Fig.l).
  • Both the main pipe 11 and the side pipes 15, 15' of the multi-fuel jet pipe 10 can with separate shut-off valves 12, 12 ', 12 ".
  • the actuating valve 52 as a multi-way valve, via which the discharge quantity for the extinguishing water and for the carbon dioxide is then controlled at the same time.
  • the multi-substance jet pipe 10 By means of the multi-substance jet pipe 10 used, it is possible to use extinguishing water in the form of a water mist as an aerosol, carbon dioxide being preferably used as the second component as the pressurized gas for generating the water mist.
  • the side tubes 15, 15 'for supplying the extinguishing water, which open into the main tube 11, have the same angular positions in their positions with respect to the main tube, it also being possible for the angled free ends 15a, 15'a of the side tubes 15, 15' to be arranged in predetermined angular positions relative to the main pipe 11 (FIG. 3).
  • the head 110 of the multi-substance jet pipe 10 has a mixing chamber 111 designed in the manner of a nozzle with an outlet opening for the gas / extinguishing water mixture which is variable in size.
  • the side pipes 15, 15 'for supplying the extinguishing water and the main pipe 11 for the compressed gas jet open into this mixing chamber 111.
  • the side tubes 15, 15 ' are guided in the multi-component jet tube 10 and run parallel to the main tube 11 and open with angled tube ends 15a, 15'a into the main tube 11 or into the nozzle-like mixing chamber 111 at the outlet end 11a of the main tube 11.
  • the number of side tubes 15, 15 ' can be chosen arbitrarily; it will depend on the size of the multi-substance jet pipe.
  • the side tubes 15, 15 ′ are preferably arranged radially around the main tube 11.
  • a screw cap 20 with a central, nozzle-like opening 21 is placed on the free end of the head 110 of the multi-substance jet tube 10, this opening 21 corresponding to the outlet opening lilac of the mixing chamber 111.
  • Air, nitrogen or carbon dioxide is used to generate the gas jet fed into the main tube 11 of the mixing chamber 111.
  • the flow rates of extinguishing water and gas jet are coordinated.
  • the control valves 12, 12 ', 12 "on the multi-substance jet pipe 10 can preferably be controlled jointly via a control device (not shown in the drawing), so that optimal flow conditions can be achieved.
  • the spraying of the extinguishing water into the gas jet of the main pipe by means of a side pipe or a plurality of side pipes can take place, for example, at an angular position of 45 ° of the outlet ends of the side pipes 15, 15 ', although no predetermined angle has to be specified.
  • the outlet ends of the side pipes 15, 15 'carrying the extinguishing water are preferably designed in the manner of a nozzle.
  • the "frozen" water drops can bind more heat in the flames and embers than water drops with ambient temperature.
  • the extinguishing water possibly with extinguishing additives, flows from the outside into the gas stream supplied to the multi-fuel jet pipe.
  • a gas stream flows in the middle of the multi-substance jet pipe, e.g. Carbon dioxide, the flow conditions of which are coordinated with those of the extinguishing water.
  • the multi-substance jet pipe e.g. Carbon dioxide
  • the fire extinguisher 50 can be a hand-held device, but there is the possibility of making the fire extinguisher mobile.
  • the extinguishing water and the carbon dioxide can be supplied to the multi-substance jet pipe 10 by means of the extinguishing agents under pressure in the container 51 of the fire extinguisher 50, but additional propellant containers or cartridges containing propellants can be arranged in the interior of the container 10.
  • additional propellant containers or cartridges containing propellants can be arranged in the interior of the container 10.
  • the propellant container can also be arranged as an additional container on the outside of the container 51.

Landscapes

  • 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)

Abstract

L'invention concerne un extincteur pourvu d'une buse de pulvérisation (55) conçue sous forme de lance à jet de plusieurs constituants (10). Cette lance d'incendie est constituée d'un tuyau principal (11) délivrant un jet de gaz sous pression, ce tuyau étant pourvu d'une soupape d'arrêt (12) et, à une extrémité, d'une buse (13) qui assure la production d'un jet de brouillard d'eau homogène, du type aérosol, et d'au moins un tuyau latéral (15) débouchant dans le tuyau principal (11) en formant un coude et destiné à amener l'eau d'extinction jusqu'au jet de gaz sous pression se trouvant dans le tuyau principal (11). Le flexible (54) conduisant à la buse de pulvérisation présente au moins une conduite d'amenée d'eau (56) et une conduite d'alimentation (57) destinée à l'agent gazeux, constitué de dioxyde de carbone. Le réservoir de l'agent extincteur et du propulseur (51) de l'extincteur (50) comprend un réservoir sous pression (59) destiné à l'eau d'extinction et un réservoir (59') destiné à recevoir le dioxyde de carbone sous pression, lequel est refroidi par expansion de façon à ramener à une température de congélation les gouttes d'eau contenues dans le mélange eau/dioxyde de carbone sortant de la lance à jet à plusieurs constituants (10).
PCT/EP1995/003511 1995-07-12 1995-09-07 Extincteur et buse de pulverisation adaptee a cet extincteur pour la production d'un jet d'agent extincteur WO1997002863A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU35640/95A AU3564095A (en) 1995-07-12 1995-09-07 Fire extinguisher and a specially designed spray nozzle for producing a jet of extinguishing agent

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE29510976.9 1995-07-12
DE29510976U DE29510976U1 (de) 1995-07-12 1995-07-12 Kombiniertes Mehrstoffstrahlrohr
DE29510982.3 1995-07-13
DE29510982U DE29510982U1 (de) 1995-07-13 1995-07-13 Feuerlöscher

Publications (1)

Publication Number Publication Date
WO1997002863A1 true WO1997002863A1 (fr) 1997-01-30

Family

ID=26058043

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1995/003511 WO1997002863A1 (fr) 1995-07-12 1995-09-07 Extincteur et buse de pulverisation adaptee a cet extincteur pour la production d'un jet d'agent extincteur

Country Status (2)

Country Link
AU (1) AU3564095A (fr)
WO (1) WO1997002863A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1008969C2 (nl) * 1998-04-23 1999-10-26 H T Research B V Werkwijze voor het blussen van een brand.
WO2000067850A1 (fr) * 1999-05-06 2000-11-16 Terra Nova Marine Company Limited Extincteur par nebulisation d'un liquide
EP1454658A1 (fr) 2003-03-04 2004-09-08 Linde Aktiengesellschaft Procédé et dispositif pour extinction d'incendie
DE10323154A1 (de) * 2003-05-22 2005-01-05 Dräger Safety AG & Co. KGaA Sprühdüseneinheit sowie Feuer(übungs)löscher, enthaltend diese Sprühdüseneinheit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR956441A (fr) * 1950-02-01
EP0314354A1 (fr) * 1987-10-24 1989-05-03 The British Petroleum Company P.L.C. Procédé et appareil de contrôle d'incendie
WO1993009848A1 (fr) * 1991-11-12 1993-05-27 Laursen Torbjoern Gerner Procede d'extinction de feu par une combinaison de gaz respirable et de vaporisation d'eau
DE4335827A1 (de) * 1993-10-20 1995-04-27 Siemens Ag Verfahren und Löschanlage zum Löschen eines Brandes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR956441A (fr) * 1950-02-01
EP0314354A1 (fr) * 1987-10-24 1989-05-03 The British Petroleum Company P.L.C. Procédé et appareil de contrôle d'incendie
WO1993009848A1 (fr) * 1991-11-12 1993-05-27 Laursen Torbjoern Gerner Procede d'extinction de feu par une combinaison de gaz respirable et de vaporisation d'eau
DE4335827A1 (de) * 1993-10-20 1995-04-27 Siemens Ag Verfahren und Löschanlage zum Löschen eines Brandes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1008969C2 (nl) * 1998-04-23 1999-10-26 H T Research B V Werkwijze voor het blussen van een brand.
WO2000067850A1 (fr) * 1999-05-06 2000-11-16 Terra Nova Marine Company Limited Extincteur par nebulisation d'un liquide
US6189625B1 (en) 1999-05-06 2001-02-20 Gordon Duane Hopkins Liquid mist fire extinguisher
EP1454658A1 (fr) 2003-03-04 2004-09-08 Linde Aktiengesellschaft Procédé et dispositif pour extinction d'incendie
DE10323154A1 (de) * 2003-05-22 2005-01-05 Dräger Safety AG & Co. KGaA Sprühdüseneinheit sowie Feuer(übungs)löscher, enthaltend diese Sprühdüseneinheit

Also Published As

Publication number Publication date
AU3564095A (en) 1997-02-10

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