EP0459944A1 - Dispositif et méthode de protection contre l'incendie liÀ©e à un objet de systèmes électriques et/ou électroniques et utilisation du dispositif - Google Patents

Dispositif et méthode de protection contre l'incendie liÀ©e à un objet de systèmes électriques et/ou électroniques et utilisation du dispositif Download PDF

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Publication number
EP0459944A1
EP0459944A1 EP91810377A EP91810377A EP0459944A1 EP 0459944 A1 EP0459944 A1 EP 0459944A1 EP 91810377 A EP91810377 A EP 91810377A EP 91810377 A EP91810377 A EP 91810377A EP 0459944 A1 EP0459944 A1 EP 0459944A1
Authority
EP
European Patent Office
Prior art keywords
extinguishing agent
fire
agent container
housing
extinguishing
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.)
Withdrawn
Application number
EP91810377A
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German (de)
English (en)
Inventor
Rudolf Wegmüller
Manfred Hagmann
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.)
Incom Brandschutz AG
Original Assignee
Incom Brandschutz AG
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 Incom Brandschutz AG filed Critical Incom Brandschutz AG
Publication of EP0459944A1 publication Critical patent/EP0459944A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion

Definitions

  • the invention relates to a device and a method for object-related fire protection of electrical and / or electronic systems at least partially enclosed by a housing. It also relates to a preferred use of the device.
  • Fire protection of electrical and / or electronic systems e.g. Computers
  • the disadvantage of such installations is that the fire alarm is only activated after smoke or gases have spread from the burning system to the ceiling. Then the entire room or at least all devices in the room are flooded with extinguishing agent, usually halogenated hydrocarbons.
  • extinguishing agent usually halogenated hydrocarbons.
  • the extinguishing agent only reaches the source of the fire when it has already caused great damage and may even have spread beyond the device.
  • due to the fire-related pressure increase in the air enclosed in the housing only an insufficient amount of extinguishing agent can catch fire or overcome this back pressure.
  • halogenated hydrocarbons are extremely harmful to the environment and expensive. Efforts are underway to ban them worldwide.
  • the object of the invention is to provide a device and a method which act specifically only on the system affected by the fire and thus limit the damage caused by fire and extinguishing to a minimum.
  • a device in that at least one fire detector is provided in the hot air stream of the system to be protected and that at least one outlet opening of an extinguishing agent container is arranged within the housing of the system to be protected.
  • the inventive method is characterized in that the decomposition, oxidation and / or combustion products are detected in a first process step in the fire detector, and in a second process step a control signal is generated in the fire detector which opens the quick-opening valve of the extinguishing agent container, and that in a third process step the extinguishing agent flows out of the outlet opening of the extinguishing agent container, spreads in the housing and displaces the oxygen from the electrical and / or electronic system and stops the decomposition, oxidation and / or the fire.
  • the control signal can also be used directly or indirectly to switch off the system supply voltage.
  • the fire detector constructed according to claim 2, which is located in the warm air flow of the system, is particularly advantageous. Decomposition products that escape from the plastic cables of the system at elevated temperatures are thus already detected and reacted accordingly.
  • carbon dioxide is ideally suited for such tasks and is also very economical.
  • the extinguishing agent container is equipped with a quick-opening valve.
  • the extinguishing agent container is completely sealed by a piercing membrane, claim 7, and can accordingly be emptied quickly.
  • the pyrotechnically initiated quick opening valve according to claim 8 has proven particularly useful for this.
  • An arrangement of the extinguishing agent container according to claim 9 is preferred. Since the flooding with the extinguishing agent takes place in a very targeted manner, the containers can be made small. Those with around 500 g of extinguishing agent content are sufficient, which allows existing systems to be retrofitted economically.
  • the use of the device according to the invention is predestined for fire protection of EDP systems and EDP peripheral devices.
  • FIG. 1 denotes a computer system; with 1 'their housing.
  • the housing 1 ' has side air inlets 2, 2' and on its top slot-like vents 3.
  • a suction hood 4 partially covers the vents 3 and leads the warm exhaust air from the system into the fire detector 6 via a connecting hose 5.
  • Two extinguishing agent containers 7 are fastened inside the upper part of the housing 1 '. They each have a quick opening valve 8 and outlet openings 9.
  • the course of a fire over time is characteristically shown in FIG. 1.
  • the source of the fire 10 occurred, a second later, at the time A, the fire detector 6 has already initiated the quick-opening valves 8, so that 9 CO2 flows out through the extinguishing nozzles.
  • the CO2 particles fill the space above the dashed line and displace via the side vents 2, 2 ', for example shown in time B, the atmospheric oxygen, labeled O2, from the housing 1'.
  • a fan 11 the usual cooling air fan, conveys the exhaust air of the computer 1 into the interior of the fire detector 6 via a connecting hose 5 and applies a smoke sensor 14 with its ionization chambers 12 and 13.
  • the electrode potential û is one via amplifiers 15, 16 Voltage / current converter 17 supplied; whose measuring current I is conducted to the input of a smoke analyzer 18 with its comparator 19.
  • the smoke analyzer 18 outputs a control signal S1 to the relay 21 of a contactor 20 and simultaneously applies its further control signal S2 to the electrical input of the quick-opening valve 8.
  • the power supply P is designed autonomously, that is to say independently of the network.
  • radioactive radiation sources R in the two ionization chambers 12 and 13, which ionize the gases present there. If foreign ions, for example decomposition and / or oxidation products, come between the electrodes 13a, 13b, an electrode potential û is set which is different from the reference electrode pair 12a, 12b and which activates the signal chain.
  • the control signal S1 interrupts the power supply of the computer 1 and thus simultaneously sets its active ventilation.
  • the control signal S2 conducted via a line embedded in a potting compound 27, ignites a propellant charge 25 via an electric glow igniter 26, the gases of which accelerate a piston 24 and strike the adjacent firing pin 23 with the tip 23 'in a piercing membrane 22 of an extinguishing agent container 7 .
  • the CO2 gas charge of 65 bar contained in the extinguishing agent container 7 therefore suddenly flows through the screw coupling 28 into the outlet opening 9 designed as a volume-expanding extinguishing nozzle and fills the space in the housing 1 'without icing up.
  • Carbon dioxide is preferred as an extinguishing agent, since it is commercially available in sealed single-use bottles.
  • extinguishing agents can also be used, such as nitrogen or sulfur hexafluoride etc.
  • auxiliary fans can of course be used which have a low air output require.
  • the "HRD SYSTEM” Westinhouse Electrotechniek en Instrumentatie B.V., NL-2723 RC Zoetermeer
  • HRD SYSTEM Westinhouse Electrotechniek en Instrumentatie B.V., NL-2723 RC Zoetermeer
  • the subject of the invention can be integrated into almost all EDP devices due to its small dimensions.

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
EP91810377A 1990-05-25 1991-05-16 Dispositif et méthode de protection contre l'incendie liÀ©e à un objet de systèmes électriques et/ou électroniques et utilisation du dispositif Withdrawn EP0459944A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1780/90 1990-05-25
CH178090A CH682885A5 (de) 1990-05-25 1990-05-25 Vorrichtung für einen objektgebundenen Brandschutz von elektrischen und/oder elektronischen Anlagen sowie Verwendung der Vorrichtung.

Publications (1)

Publication Number Publication Date
EP0459944A1 true EP0459944A1 (fr) 1991-12-04

Family

ID=4218442

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91810377A Withdrawn EP0459944A1 (fr) 1990-05-25 1991-05-16 Dispositif et méthode de protection contre l'incendie liÀ©e à un objet de systèmes électriques et/ou électroniques et utilisation du dispositif

Country Status (2)

Country Link
EP (1) EP0459944A1 (fr)
CH (1) CH682885A5 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993008549A1 (fr) * 1991-10-17 1993-04-29 Wagner Alarm- Und Sicherungssysteme Gmbh Dispositif de detection d'incendie
DE4343887A1 (de) * 1993-12-22 1995-06-29 Nischk Joerg Dipl Betriebsw Feuerlöschanlage zum Schutz von hochwertigen und empfindlichen Objekten
US5537096A (en) * 1991-10-17 1996-07-16 Wagner Alarm- Und Fire detecting device
WO1998040858A1 (fr) * 1997-03-11 1998-09-17 Seeliger Hans Dieter Armoire electrique pourvue d'un systeme d'extinction d'incendie
DE19735067A1 (de) * 1997-08-13 1999-02-18 Mitlehner Joachim Brandschutz-Einrichtung für die Zentraleinheit von elektronischen Datenverarbeitungs-Anlagen
GB2420279A (en) * 2004-11-22 2006-05-24 Nicholas Shaw Environmentally controlled unit
DE202006021007U1 (de) 2006-10-09 2012-01-04 Minimax Gmbh & Co. Kg Feuerlöschanlage für ein Gehäuse
WO2012154050A2 (fr) 2011-05-12 2012-11-15 Fire Suppression Inside V.O.F. Procédé et système pour éviter un incendie d'un dispositif électrique
US8418774B2 (en) 2006-10-09 2013-04-16 Minimax Gmbh & Co. Kg Fire extinguishing system for a casing
DE102017005287B3 (de) 2017-06-02 2018-10-04 DATANET GmbH Sicherheitsschrank für aktive elektrische und/oder elektronische Komponenten
WO2022262883A1 (fr) * 2021-06-19 2022-12-22 ASES GROUP, s.r.o. Système de communication automatique pour la suppression locale de la température croissante ou de l'extinction d'incendie dans un équipement électrique connecté à une alimentation électrique

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3139143A (en) * 1962-07-27 1964-06-30 Automatic Sprinkler Corp Fire protection system
US3952808A (en) * 1974-01-23 1976-04-27 National Research Development Corporation Fire protection systems
US3990518A (en) * 1974-05-14 1976-11-09 Siemens Aktiengesellschaft Automatic fire alarm and extinguisher device
FR2360321A1 (fr) * 1976-08-06 1978-03-03 Biro Fils Procede et dispositif d'extinction d'incendie dans les ensembles d'ordinateurs
FR2523455A1 (fr) * 1982-03-19 1983-09-23 Sfeme Dispositif de detection et protection contre l'incendie d'enceintes fermees telles que des armoires sujettes a ce risque
GB2149658A (en) * 1983-11-18 1985-06-19 Barcrest Ltd Fire extinguishing systems
US4691783A (en) * 1986-03-06 1987-09-08 Spectronix Ltd. Automatic modular fire extinguisher system for computer rooms
EP0333290A1 (fr) * 1988-03-15 1989-09-20 Van Rietschoten & Houwens Noord-West B.V. Dispositif de surveillance du passage de conduit(s) d'aspiration d'un système de détection de fumée/gaz

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3139143A (en) * 1962-07-27 1964-06-30 Automatic Sprinkler Corp Fire protection system
US3952808A (en) * 1974-01-23 1976-04-27 National Research Development Corporation Fire protection systems
US3990518A (en) * 1974-05-14 1976-11-09 Siemens Aktiengesellschaft Automatic fire alarm and extinguisher device
FR2360321A1 (fr) * 1976-08-06 1978-03-03 Biro Fils Procede et dispositif d'extinction d'incendie dans les ensembles d'ordinateurs
FR2523455A1 (fr) * 1982-03-19 1983-09-23 Sfeme Dispositif de detection et protection contre l'incendie d'enceintes fermees telles que des armoires sujettes a ce risque
GB2149658A (en) * 1983-11-18 1985-06-19 Barcrest Ltd Fire extinguishing systems
US4691783A (en) * 1986-03-06 1987-09-08 Spectronix Ltd. Automatic modular fire extinguisher system for computer rooms
EP0333290A1 (fr) * 1988-03-15 1989-09-20 Van Rietschoten & Houwens Noord-West B.V. Dispositif de surveillance du passage de conduit(s) d'aspiration d'un système de détection de fumée/gaz

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ENGINEERING, Nr. 3, März 1985, Seite 149, London, GB; "Control systems extinguish automatically" *

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993008549A1 (fr) * 1991-10-17 1993-04-29 Wagner Alarm- Und Sicherungssysteme Gmbh Dispositif de detection d'incendie
TR26577A (tr) * 1991-10-17 1995-03-15 Wagner Alarm Sicherung Yangin teshis etme tertibati
US5537096A (en) * 1991-10-17 1996-07-16 Wagner Alarm- Und Fire detecting device
DE4343887A1 (de) * 1993-12-22 1995-06-29 Nischk Joerg Dipl Betriebsw Feuerlöschanlage zum Schutz von hochwertigen und empfindlichen Objekten
WO1998040858A1 (fr) * 1997-03-11 1998-09-17 Seeliger Hans Dieter Armoire electrique pourvue d'un systeme d'extinction d'incendie
US6317053B1 (en) * 1997-03-11 2001-11-13 Hans-Dieter Seeliger Switch cabinet with a fire extinguishing system
AU741673B2 (en) * 1997-03-11 2001-12-06 Uwe Kuhn Switch cabinet with a fire extinguishing system
DE19735067A1 (de) * 1997-08-13 1999-02-18 Mitlehner Joachim Brandschutz-Einrichtung für die Zentraleinheit von elektronischen Datenverarbeitungs-Anlagen
GB2420279A (en) * 2004-11-22 2006-05-24 Nicholas Shaw Environmentally controlled unit
GB2420279B (en) * 2004-11-22 2006-11-08 Nicholas Shaw Environmentally controlled unit
DE202006021007U1 (de) 2006-10-09 2012-01-04 Minimax Gmbh & Co. Kg Feuerlöschanlage für ein Gehäuse
US8418774B2 (en) 2006-10-09 2013-04-16 Minimax Gmbh & Co. Kg Fire extinguishing system for a casing
WO2012154050A2 (fr) 2011-05-12 2012-11-15 Fire Suppression Inside V.O.F. Procédé et système pour éviter un incendie d'un dispositif électrique
DE102017005287B3 (de) 2017-06-02 2018-10-04 DATANET GmbH Sicherheitsschrank für aktive elektrische und/oder elektronische Komponenten
WO2018219374A1 (fr) 2017-06-02 2018-12-06 DATANET GmbH Armoire de sécurité pour composants électriques et/ou électroniques actifs
WO2022262883A1 (fr) * 2021-06-19 2022-12-22 ASES GROUP, s.r.o. Système de communication automatique pour la suppression locale de la température croissante ou de l'extinction d'incendie dans un équipement électrique connecté à une alimentation électrique
NL2032207A (en) * 2021-06-19 2022-12-22 Ases Group S R O Automatic communication system for local suppression of rising temperature or fire extinguishing in electrical equipment connected to a power supply
BE1029438B1 (nl) * 2021-06-19 2023-03-29 Ases Group S R O Automatisch communicatiesysteem voor lokale onderdrukking van stijgende temperatuur of brandblussing in elektrische apparatuur die is aangesloten op een voeding
ES2958663A1 (es) * 2021-06-19 2024-02-13 Megellan Se Sistema de comunicacion automatico para la supresion local de aumento de temperatura o la extincion de incendios en equipos electricos conectados a una fuente de alimentacion
GB2622510A (en) * 2021-06-19 2024-03-20 Megallan Se Automatic communication system for local suppression of rising temperature of fire extinguishing in electrical equipment connected to a power supply

Also Published As

Publication number Publication date
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