EP0830181A1 - Dispositif extincteur a fluide extincteur - Google Patents

Dispositif extincteur a fluide extincteur

Info

Publication number
EP0830181A1
EP0830181A1 EP96912027A EP96912027A EP0830181A1 EP 0830181 A1 EP0830181 A1 EP 0830181A1 EP 96912027 A EP96912027 A EP 96912027A EP 96912027 A EP96912027 A EP 96912027A EP 0830181 A1 EP0830181 A1 EP 0830181A1
Authority
EP
European Patent Office
Prior art keywords
extinguishing
fire
fluid
pressure
nozzles
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.)
Granted
Application number
EP96912027A
Other languages
German (de)
English (en)
Other versions
EP0830181B1 (fr
Inventor
Dirk Sprakel
Jan Sprakel
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.)
Fogtec Brandschutz GmbH and Co KG
Original Assignee
Kamat-Pumpen GmbH and Co KG
Kamat Pumpen GmbH and Co KG
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 Kamat-Pumpen GmbH and Co KG, Kamat Pumpen GmbH and Co KG filed Critical Kamat-Pumpen GmbH and Co KG
Publication of EP0830181A1 publication Critical patent/EP0830181A1/fr
Application granted granted Critical
Publication of EP0830181B1 publication Critical patent/EP0830181B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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

Definitions

  • the invention relates to a device for extinguishing fire by means of an extinguishing fluid with a supply line carrying the extinguishing fluid, which connects a pressure generator to a plurality of extinguishing nozzle heads, each of which has at least one extinguishing nozzle which is connected to the supply line via at least one connecting channel, and to one Fire guard device that triggers the escape of extinguishing fluid from the extinguishing nozzles in the event of a fire.
  • Such devices are usually installed stationary in a building or a ship.
  • Known devices are usually equipped with a pressure generator, for example a pump, for generating the extinguishing fluid pressure required for extinguishing and extinguishing nozzles which are arranged in the rooms at risk of fire and which are connected to the pressure generator via a supply line system.
  • a pressure generator for example a pump
  • the extinguishing fluid escaping from the extinguishing nozzles is triggered by a fire guard device which is assigned to each of the extinguishing nozzles.
  • the object of the invention is to use simple means to develop an inexpensive device for extinguishing a fire by means of extinguishing fluid, with which in the event of a fire all extinguishing nozzles associated with a specific security area can be opened safely.
  • a device of the type mentioned at the outset which is characterized in that at least one of the extinguishing nozzle heads has the exit of extinguishing fluid from at least one of the extinguishing nozzles closed by means of a closure device which automatically opens when a minimum pressure of the extinguishing fluid is exceeded.
  • the discharge of extinguishing fluid from the extinguishing nozzle heads belonging to the device according to the invention can be brought about solely by, for example, switching on the pressure generator belonging to the device upon a corresponding signal from the fire guard device. After the pump is switched on, the pressure inside the supply line system increases. When a certain limit pressure is exceeded, the opens automatically suitably equipped extinguishing nozzle heads the closure device responsive to the exceeding of the minimum pressure.
  • An advantageous, particularly inexpensive and effective embodiment of the invention is characterized in that the fire guard device keeps at least one of the extinguishing nozzles closed in the idle state and opens it in the event of a fire.
  • the fire guard device is directly assigned to at least one of the extinguishing nozzle heads.
  • the opening of the extinguishing nozzle assigned to the relevant fire guard device triggered by a fire causes a pressure drop in the extinguishing fluid in the supply line. This pressure drop can be determined by a control and monitoring device assigned to the pressure generator, which then starts the pressure generator. Alternatively, the increasing flow rate can also be evaluated as a signal for switching on the pressure generator.
  • each of the extinguishing nozzles is connected to the supply line via at least two connecting channels, one of the connecting channels in the idle state by the first opening when a minimum pressure of the extinguishing fluid is exceeded Closure device is closed and the other of the connecting channels is closed in the idle state by a second closure device, which is evident in the event of a fire by a fire guard device.
  • the device according to the invention can be set up inexpensively.
  • the fire monitor device should preferably be an element which can be destroyed by the action of heat, on which a movable valve piston is supported in a spring-loaded manner and forms the closure device which can be opened by the fire monitor device.
  • the fire guard device and the locking device in question can be realized in a simple manner while taking up very little installation space. This applies in particular if the element that can be destroyed by the action of heat is a glass bottle.
  • the device according to the invention can be used particularly advantageously when the extinguishing nozzles generate an extinguishing mist from the extinguishing fluid. If an extinguishing mist formed from an extinguishing fluid is used, a fire can be extinguished with a minimum of extinguishing fluid.
  • the costs of a device according to the invention can be kept particularly low, while at the same time being highly reliable and robust, in that the closure device which is opened by an increase in the pressure of the extinguishing fluid is formed by a rupture disk. Such rupture disks can be easily adapted to the respective operating conditions by an appropriate choice of material and by choosing a suitable dimensioning.
  • the closure device which opens when the extinguishing fluid increases in pressure can be designed as a movable valve body which is loaded by an elastic restoring force and has at least one first pressure surface on which the fluid exerts a pressure force which is directed essentially against the restoring force.
  • the embodiment of the invention explained above can be used particularly advantageously if the connecting channel opens into a chamber surrounding the first pressure surface and if a connecting channel opening into the chamber can be closed over a section of the first pressure surface.
  • at least one of the connecting channels should be evident and at least one further of the connecting channels should be closable by a single movement of the valve body.
  • the device according to the invention is used for extinguishing with extinguishing fluid mist, because in this case the composition of the Extinguishing mist can be controlled in a simple manner.
  • Figure 1 shows a first extinguishing nozzle head in axial longitudinal section.
  • the extinguishing nozzle head shown in FIG. 1 has a conically tapered circumferential surface 2, into which receptacles 3 for extinguishing nozzles, not shown, are molded.
  • the receptacles 3 have internal threads 4, into which the extinguishing nozzles can be screwed via corresponding external threads formed on them.
  • the extinguishing nozzle head 1 has a central bore 5, in which an axially displaceable valve piston 6 is arranged.
  • the bore 5 has a section 8 which has a larger diameter than the other sections of the bore 5 and in the wall of which an internal thread 9 is formed.
  • the protective cap 10 of a fire guard device 11 is screwed into the internal thread 9.
  • the protective cap 10 of the fire guard device 11 projects freely into the room from the end face 7 of the extinguishing nozzle head.
  • a bulb-shaped glass bottle 13 is inserted, on the the end 14 associated with the extinguishing nozzle head 1 of the valve piston 6 is supported.
  • the valve piston 6 has an axial blind bore 15 extending from its rear end face, which is assigned to the bottom 14 of the bore 5, into which through-bores 16, which are arranged in the central region of the valve piston 5 and radially to the circumferential surface of the valve piston 6, open.
  • the through bores 16 connect the blind bore 15 of the valve piston 6 with an annular chamber 17 formed in the bore 5, to which the receptacles 3 for the extinguishing nozzles, not shown, are connected.
  • valve piston 6 has in its rear region a section 18 with a reduced diameter such that a free space 19 is formed in the central bore 5 of the extinguishing nozzle head 1.
  • a connecting channel 20 opens, via which a connection 21, formed on the rear side of the extinguishing nozzle head, for a supply line (not shown) is connected to the central bore 5 of the extinguishing nozzle head 1.
  • a connection 21 formed on the rear side of the extinguishing nozzle head, for a supply line (not shown) is connected to the central bore 5 of the extinguishing nozzle head 1.
  • the free space 19 of the central bore 5 is sealed off from the annular chamber 17 by an annular seal 22 carried by the valve piston 6.
  • a coil spring not shown, which in the rest state of the extinguishing nozzle head 1 has a spring force directed in the direction of the glass bottle 13 on the valve piston 6 exercises.
  • a second connecting channel 25 opens into the free space 24 and connects the free space 24 of the central bore 5 with the connection 21 for the supply line (not shown).
  • the extinguishing nozzle head 51 shown in FIG. 2 has receptacles 53 molded into its conically tapered circumferential surface 52, into which extinguishing nozzles, not shown, can be screwed.
  • the extinguishing nozzle head 51 like the extinguishing nozzle head 1 of FIG. 1, has a central bore 54 in which a piston 55 is arranged to be axially displaceable.
  • the shape of the piston 55 corresponds to that of the piston 6 shown in FIG. 1.
  • a section of reduced diameter arranged in the rear region of the piston 55 forms a free space 56, into which a first connecting channel 57 opens. At its other end, the connecting channel 57 is connected to a connection 58 for a supply line, not shown.
  • a free space 60 is formed between the rear end of the piston 55 and the bottom 59 of the bore 54.
  • a helical spring is arranged in the free space 60 and exerts a compressive force on the piston 55 in the direction of the tip 61 thereof.
  • the free space 56 is sealed off from the other sections of the central bore 54 by means of ring seals 62, 63 which are inserted into grooves which are inserted into the rear end section 64 or the central section 65 of the piston 55.
  • the tip 62 of the piston 55 is supported on a glass bottle 66, which sits in the recess 67 of a protective cap 68.
  • the protective cap 68 is like that shown in FIG. 1 Cap 11 is screwed into the enlarged end section 69 of the central bore 54.
  • the receptacles 53 for the extinguishing nozzles, not shown, are connected to the central bore 54 via connecting channels, not shown, such that, in the rest position shown in FIG. 2, the connecting channel 57 is sealed off from the receptacles 53.
  • connection 58 for the supply line (not shown) is connected to a further receptacle 71 via a second connecting channel 70.
  • a further connecting channel 73 is formed in the bottom 72 of the receptacle 71, which connects the receptacle 71 with the receptacles 53 for the extinguishing nozzles, not shown.
  • a rupture disk 74 can be inserted into the receptacle 71 such that the rupture disk 74 rests on the bottom 72 of the receptacle 71 and seals the connecting channel 73.
  • the receptacle 71 is closed by a stopper 75 which can be screwed into the receptacle 71, the stopper 75 simultaneously ensuring that the rupture disk 74 is held on the bottom 72 of the receptacle 71.
  • the device according to the invention for extinguishing fire by means of extinguishing fluid is in each case equipped with a plurality of extinguishing nozzle heads 1 or 51, which are each arranged at a distance from one another in a fire-prone area.
  • the extinguishing nozzle heads 1 and 51 are connected via the supply lines, not shown, to a pressure generator, also not shown, for example a pump or a pressure bottle.
  • the pressure of the extinguishing fluid within the supply line system is controlled by a monitoring and control device, also not shown. At rest the The device in the supply line system has a relatively low pressure of, for example, 5 to 8 bar.
  • a device which is equipped with the extinguishing nozzle heads 1 shown in FIG. 1 operates as follows:
  • the glass bottle 13 Due to the heat development associated with the occurrence of a fire, the glass bottle 13 is destroyed at the extinguishing nozzle head 1 which is closest to the location of the fire. Then the piston 6 is moved by the force of the spring, not shown, in the direction of the end face 7 of the extinguishing nozzle head 1. As a result of this movement, the first connecting channel 20 is connected to the receptacles 3 via the free space 19 and the annular chamber 17, so that extinguishing fluid emerges from the extinguishing nozzles screwed into the receptacles 3.
  • the pressure drop in the supply line system associated with the discharge of the extinguishing fluid is determined by the monitoring and control device (not shown). The latter then gives a control signal to the pressure generator, also not shown, which then increases the pressure of the extinguishing fluid again within the supply line system.
  • a certain limit value for example 40 bar
  • the bursting disks 23 burst in those extinguishing nozzle heads whose glass bottles 14 have not been destroyed in the event of the fire, and extinguishing fluid then penetrates through the second connecting channel 25, the blind hole 15, the through hole 16 and the annular chamber 17 in the receptacles 3 and exits through the extinguishing nozzles, not shown.
  • a device of the type explained here equipped with the extinguishing nozzle heads 51 works in principle in the same way as the device explained above, equipped with extinguishing nozzle heads 1.
  • the first connecting channel 57 is connected to the receptacles 53 by the displacement of the piston 55 associated with the destruction of the glass bottle 66 via the free space 56 and the annular channel (not shown). From this moment on, extinguishing fluid emerges from the extinguishing nozzles, not shown, screwed into the receptacles 53.
  • the rupture disk 74 bursts as soon as the pressure within the supply line system by the pressure generator, not shown, caused by the control and monitoring unit, not shown, causes one exceeds a certain limit. After the fire has been extinguished, the rupture disk 74, which may have been destroyed, can be replaced in a particularly simple manner by unscrewing the plug 75.

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)
  • Nozzles (AREA)

Abstract

Le dispositif extincteur à fluide extincteur décrit comprend un conduit d'alimentation en fluide extincteur qui relie un générateur de pression à une pluralité de têtes à tuyères (1, 51) ayant chacune une tuyère reliée par au moins un canal de liaison au conduit d'alimentation. Un dispositif de surveillance (16, 36) déclenche l'éjection de fluide extincteur par les tuyères en cas d'incendie. Afin d'assurer l'ouverture simultanée et fiable des tuyères en cas d'incendie avec des moyens simples et peu coûteux, dans au moins une des têtes à tuyères (1, 51) l'éjection de fluide extincteur par au moins une des tuyères est arrêtée par un dispositif de fermeture (23, 74) qui s'ouvre automatiquement lorsqu'une pression minimale du fluide extincteur est dépassée.
EP96912027A 1995-04-22 1996-04-20 Dispositif extincteur a fluide extincteur Expired - Lifetime EP0830181B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19514939A DE19514939C2 (de) 1995-04-22 1995-04-22 Löschdüsenkopf
DE19514939 1995-04-22
PCT/EP1996/001665 WO1996033775A1 (fr) 1995-04-22 1996-04-20 Dispositif extincteur a fluide extincteur

Publications (2)

Publication Number Publication Date
EP0830181A1 true EP0830181A1 (fr) 1998-03-25
EP0830181B1 EP0830181B1 (fr) 2001-07-18

Family

ID=7760182

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96912027A Expired - Lifetime EP0830181B1 (fr) 1995-04-22 1996-04-20 Dispositif extincteur a fluide extincteur

Country Status (7)

Country Link
US (1) US5967239A (fr)
EP (1) EP0830181B1 (fr)
JP (1) JP3792720B2 (fr)
AU (1) AU5501696A (fr)
DE (4) DE19514939C2 (fr)
ES (1) ES2161356T3 (fr)
WO (1) WO1996033775A1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2103070C (fr) 1991-05-20 2003-07-22 Goran Sundholm Materiel de lutte contre l'incendie
FI104152B (fi) 1997-06-13 1999-11-30 Marioff Corp Oy Suutin ja palonsammutuslaitteisto
DE19739457C2 (de) * 1997-09-03 2002-03-14 Feuerschutz G Knopf Gmbh Verfahren und Vorrichtung zur Brandbekämpfung durch eine dynamische Löschmittelanwendung
DE19841876C2 (de) * 1998-09-11 2002-07-18 Fogtec Brandschutz Gmbh & Co Vorrichtung zur Erzeugung von Löschschaum
DE19841874A1 (de) * 1998-09-11 2000-03-23 Fogtec Brandschutz Gmbh Verfahren und Vorrichtung zum Bekämpfen von Bränden
DE19841875A1 (de) 1998-09-11 2000-03-23 Fogtec Brandschutz Gmbh Löschdüsenkopf zum Ausbringen von Löschflüssigkeit
DE19935308B4 (de) * 1999-07-28 2004-04-15 Kidde-Deugra Brandschutzsysteme Gmbh Brandlöscheinrichtung
DE19948324C2 (de) 1999-10-07 2001-08-09 Fogtec Brandschutz Gmbh & Co Vorrichtung zum Löschen eines Feuers
DE19949277C2 (de) * 1999-10-13 2001-08-16 Fogtec Brandschutz Gmbh & Co Vorrichtung zum Löschen von Feuer
GB0218796D0 (en) * 2002-08-13 2002-09-18 Advanced Motion Technologies I Improved apparatus and method for suppressing fires
FI20030620A (fi) * 2003-04-24 2004-10-25 Marioff Corp Oy Laitteisto väliaineen kulkutien sulkemiseksi ja suihkutuspää
DE102005014275B4 (de) * 2005-03-24 2008-06-19 Fogtec Brandschutz Gmbh & Co. Kg Servicefreundliches Ventil für Brandbekämpfungssysteme
US20080000649A1 (en) * 2006-06-08 2008-01-03 Fire Quench Pty Ltd. Method, system and sprinkler head for fire protection
EP2069026B1 (fr) * 2006-09-19 2013-01-23 Hypro, LLC Tête de pulvérisation avec couvercles
JP4768856B2 (ja) * 2006-10-30 2011-09-07 フォグテック ブランドシューツ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディトゲゼルシャフト 消火液用の耐寒容器
KR102057953B1 (ko) 2012-03-05 2019-12-20 마리오프 코포레이션 오와이 물 분무 화재 진압 스프링클러
GB2527863B (en) * 2014-10-20 2018-04-04 Knox Fire & Security Ltd Fire suppression system
USD863501S1 (en) 2017-10-12 2019-10-15 Knox Fire And Security Limited Fire suppression nozzle

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DE512544C (de) * 1930-11-13 Paul Lechler Fa Fluessigkeitszerstaeuber
US3182867A (en) * 1963-11-18 1965-05-11 Walker Mfg Co Dispensing mechanism
AU440749B2 (en) * 1971-02-22 1973-09-24 B. F. A. Products Pty. Ltd An improved firehose nozzle
US3791450A (en) * 1972-04-03 1974-02-12 E Poitras On-off fire sprinkler
JPS57502220A (fr) * 1981-01-23 1982-12-16
US4700894A (en) * 1986-07-03 1987-10-20 Grzych Leo J Fire nozzle assembly
ATE172126T1 (de) * 1991-02-28 1998-10-15 Goeran Sundholm Sprühkopf zur brandbekämpfung
FI915669A0 (fi) * 1991-11-26 1991-11-29 Goeran Sundholm Eldslaeckningsanordning.
US5215254A (en) * 1992-07-23 1993-06-01 Spraying Systems Co. Self cleaning spring-loaded nozzle
GB2286119A (en) * 1992-09-15 1995-08-09 Goeran Sundholm Method and device for fire extinguishing by alternating a liquid fog and a liquid jet
DE4239545A1 (de) * 1992-11-25 1994-05-26 Alba Ind & Umweltschutzservice Hochdruckpistole für Unterwasserarbeiten
FI91038C (fi) * 1993-01-29 1994-05-10 Goeran Sundholm Suutinpää
SE501267C2 (sv) * 1993-04-23 1994-12-19 Htc Aamaal Ab Dyshållare

Non-Patent Citations (1)

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Title
See references of WO9633775A1 *

Also Published As

Publication number Publication date
ES2161356T3 (es) 2001-12-01
WO1996033775A1 (fr) 1996-10-31
JPH11503945A (ja) 1999-04-06
DE19514939A1 (de) 1996-10-24
DE59607094D1 (de) 2001-07-19
DE29518911U1 (de) 1996-01-25
DE59607325D1 (de) 2001-08-23
US5967239A (en) 1999-10-19
EP0830181B1 (fr) 2001-07-18
DE19514939C2 (de) 1997-09-18
JP3792720B2 (ja) 2006-07-05
AU5501696A (en) 1996-11-18

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