EP0888152A1 - Extincteur et soupape d'extincteur appropriee - Google Patents

Extincteur et soupape d'extincteur appropriee

Info

Publication number
EP0888152A1
EP0888152A1 EP97914217A EP97914217A EP0888152A1 EP 0888152 A1 EP0888152 A1 EP 0888152A1 EP 97914217 A EP97914217 A EP 97914217A EP 97914217 A EP97914217 A EP 97914217A EP 0888152 A1 EP0888152 A1 EP 0888152A1
Authority
EP
European Patent Office
Prior art keywords
pressure
valve
extinguishing agent
fire
valve seat
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
EP97914217A
Other languages
German (de)
English (en)
Other versions
EP0888152B1 (fr
Inventor
Karl Gabriel
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.)
Ceodeux Fire Extinguisher Valves Technology SA
Original Assignee
Ceodeux Fire Extinguisher Valves Technology SA
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 LU88729A external-priority patent/LU88729A1/de
Application filed by Ceodeux Fire Extinguisher Valves Technology SA filed Critical Ceodeux Fire Extinguisher Valves Technology SA
Publication of EP0888152A1 publication Critical patent/EP0888152A1/fr
Application granted granted Critical
Publication of EP0888152B1 publication Critical patent/EP0888152B1/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
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • A62C35/68—Details, e.g. of pipes or valve systems
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
    • A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone

Definitions

  • the invention relates to a fire extinguishing device with an extinguishing agent container which contains a gaseous pressure medium, and a fusible hollow body as a trigger element, the fusible hollow body being pressurized by the gaseous pressure medium in the extinguishing agent container.
  • the invention also relates to a fire extinguisher valve for such a fire extinguishing device.
  • the "FireTrace® system” essentially consists of at least one extinguishing agent container that contains a gaseous pressure medium as a blowing agent or as an extinguishing gas, and a special hose that is connected to the extinguishing agent container and pressurized by the gaseous pressure medium in the extinguishing agent container.
  • the pressurized special hose is attached above the potentially fire hazard. It consists of a specially developed, age-resistant and diffusion-proof polymer material and is designed in such a way that the hose wall bursts, for example, at a temperature between 100 and 110 ° C and allows the gaseous pressure medium to escape.
  • the hose is directly connected to the extinguishing agent container. If the hose bursts in the event of a fire, the extinguishing agent flows through the hose to the point where it is released. The hose therefore serves both as a trigger element as well as a transport line for the extinguishing agent.
  • the hose is connected to the extinguishing agent container by means of a control valve. As soon as the pressure in the hose drops relative to the pressure in the extinguishing agent container, this control valve opens in order to release the contents of the extinguishing agent container.
  • a pressure drop in the hose naturally arises if in the event of a fire
  • the hose bursts under the influence of heat.
  • several extinguishing agent containers can be controlled simultaneously in the event of a fire, so that, for example, a certain concentration of a gaseous extinguishing agent can be easily achieved in a closed room.
  • the aforementioned control valve comprises a valve seat, a membrane-shaped closing element which is assigned to the valve seat, and a release chamber in which the closing element forms a pressure surface.
  • a connecting hole through the closing element connects the release chamber in terms of pressure to the extinguishing agent container.
  • the closing element with its pressure surface is designed and arranged in such a way that it is pressed against the valve seat when the pressure between the extinguishing agent container and the release chamber is equalized, and lifts off the valve seat when the pressure in the release chamber drops.
  • the pressure drop in the trigger chamber is generated by the bursting of the hose, which is connected directly to the trigger chamber.
  • this "FireTrace® system” has been used extremely successfully with extinguishing powders, water, AFFF foam or the new halon exchange gases.
  • the "FireTrace® system” is not suitable for CO2 as an extinguishing agent. Since the gas pressure in the CO 2 extinguishing agent container is strongly temperature-dependent, there are indeed unacceptable fluctuations in the triggering temperature when the ambient temperature fluctuates. These fluctuations in the triggering temperature are extremely dangerous, above all because a decrease in the triggering temperature is found at a high ambient temperature and an increase in the triggering temperature at a low ambient temperature.
  • the present invention has for its object to make the trigger temperature of a fire extinguishing device of the type described above independent of fluctuations in the ambient temperature.
  • This object is achieved in that a pressure regulator is arranged between the extinguishing agent container and the fusible hollow body.
  • This pressure regulator reduces the pressure in the fusible hollow body and weakens the effect of pressure fluctuations in the extinguishing agent container on the pressure in the fusible hollow body.
  • the trigger temperature which is determined by the melting behavior of the fusible hollow body and the internal pressure in the hollow body, will thus cause the pressure fluctuations in the extinguishing agent container to be more independent of temperature fluctuations.
  • the fire extinguishing device according to the invention can also be operated with C0 2 as an extinguishing agent, even if the ambient temperature fluctuates significantly.
  • the pressure regulator according to the invention also has the following advantages:
  • the pressure in the fusible hollow body can be set independently of the gas pressure in the extinguishing agent container, so that the same fusible hollow body can be used for all extinguishing media and all filling pressures, and nevertheless the same triggering temperature is reached;
  • the internal pressure in the fusible hollow body can be easily adjusted and the triggering temperature can thus be adapted to local conditions.
  • a higher trigger temperature can be set via the pressure regulator to prevent false tripping;
  • the fusible hollow body is in most cases a fusible one
  • the fusible hollow body for example as a small bottle, as a rigid pipe network or as a large-area cushion to execute.
  • the fusible hollow body bursts under a certain internal pressure at a predetermined temperature (for example 100 ° C.) and allows the compressed gas to escape.
  • the fusible hollow body must of course also have sufficient resistance to aging and be sufficiently diffusion-tight.
  • the fusible hollow body is advantageously connected to a pressure relief valve.
  • the extinguishing agent can be an extinguishing powder or an extinguishing liquid, the pressure medium being a propellant gas, for example nitrogen.
  • the extinguishing agent can also be an extinguishing gas.
  • Such a control valve advantageously comprises a valve seat, a closing element, which is assigned to the valve seat. a trigger chamber, in which the closing element forms a pressure surface, connecting means, which the trigger chamber with the Connect the extinguishing agent container in terms of pressure.
  • the closing surface of the closing element is designed and arranged in such a way that it is pressed against the valve seat when the pressure between the extinguishing agent container and the release chamber is equalized, and lifts off the valve seat when the pressure in the release chamber drops.
  • the fusible hollow body is connected via the pressure regulator to the release chamber in terms of pressure, so that a leak in the fusible hollow body caused by the fire immediately causes a pressure drop in the release chamber, as a result of which the gas pressure in the extinguishing agent container lifts the closing element from the valve seat.
  • Such a control valve advantageously has at least one outlet opening for the extinguishing agent. If the closing element is lifted off the valve seat, the extinguishing agent can flow out of the control valve via the valve seat through the outlet opening.
  • the at least one outlet opening of the control valve opens into the fusible hollow body, which is designed as a transport line for the extinguishing agent.
  • the transport line is pressurized with the gaseous pressure medium from the extinguishing agent container via the pressure regulator.
  • the transport line bursts over the source of the fire.
  • the control valve is triggered by the pressure drop in the transport line.
  • the extinguishing agent flows into the transport line and is released through the cracked area above the source of the fire.
  • a fire extinguisher valve is also proposed which is suitable for use in a fire extinguishing device according to the invention.
  • this fire extinguisher valve for example, any portable or mobile C0 2 fire extinguisher can be integrated into an automatically triggering fire extinguishing device that does not require an external power connection.
  • Valve body and a valve cap the pressure regulator being built into the valve cap.
  • a blocking device allows the pressure regulator to be blocked in the closed position, so that the valve can be emptied
  • the pressure regulator advantageously has a prestressed spring element, the pressure in the release connection of the fire extinguisher valve being via the
  • Preload of the spring element can be determined.
  • Trigger connection and thus the trigger temperature can then be adjusted by changing the bias of the spring element.
  • FIG. 1 shows a longitudinal section through a fire extinguisher valve 10 according to the invention which is integrated into a fire extinguishing device according to the invention
  • FIG. 2 shows the fire extinguisher valve according to the invention from FIG. 1 in an alternative embodiment of the fire extinguishing device according to the invention.
  • the fire extinguisher valve 10 is screwed onto an extinguishing agent container 12.
  • this extinguishing agent container 12 is, for example, a C0 2 bottle, only the bottle neck being shown in cross section.
  • the gas pressure in the C0 2 bottle is, for example, 60 bar.
  • the ambient temperature rises to 60 ° C the gas pressure in the C0 2 bottle can rise to 170 to 220 bar, depending on the filling factor.
  • the fire extinguisher valve 10 consists essentially of a valve body 14, such as is used, for example, in manually triggered C0 2 fire extinguishers, and a novel valve cap 16.
  • the valve body 14 comprises a connecting piece 18, which in the
  • Bottle neck of the C0 2 bottle 12 can be screwed in.
  • a connection channel 20 is formed which is directly connected to the interior of the C0 2 bottle 12.
  • the reference number 22 shows an outlet opening for the extinguishing agent in a side nozzle 24 of the Valve body 14 is arranged.
  • a valve seat 26, to which a closing element 28 is assigned, is arranged between the connecting channel 20 and the outlet opening 22.
  • the latter is designed as a closing piston which is axially displaceably fitted into a cylindrical chamber 30 above the valve seat. In the valve position shown, the closing element 28 lies with its end face 32 sealed against the valve seat 26, the connection between the connecting channel 20 and the outlet opening 22 being sealed gas-tight via the valve seat 26.
  • the cylindrical chamber 30 is closed axially by the valve cap 16, so that a chamber 34 is separated behind the closing element 28, which is referred to below as the trigger chamber 34.
  • the second end face of the closing piston 28 forms a pressure face 36 in this release chamber.
  • the locking piston 28 has an axial through bore 38 which opens centrally into the first and second end faces 32 and 36. Via this bore 38, the same pressure as in the connecting channel 20 can be set in the release chamber 34. Since the cross-section of the release chamber 34 is larger than the cross-section of the seat 32, a hydrostatic closing force acts in the direction of the valve seat 26 on the closing piston 28, which is sealed against the valve seat 26 - at the same pressure in the release chamber 34 and the connecting channel 20.
  • a pressure drop is caused in the trigger chamber 34, that is to say that the gas is released from the trigger chamber 34 faster than it can flow in through the bore 38, a hydrostatic opening force is created which acts on the closing piston 28 in the direction of the valve cap 16.
  • the latter is pressed against the valve cap 16, a sealing element 40 closing the opening of the through hole 38 so that no more gas can flow into the trigger chamber 34.
  • the valve is now open and the extinguishing agent can flow via the valve seat 26 into the socket 24, where it can exit the valve via the outlet opening 22.
  • a pressure regulator 42 is installed in the valve cap 16 and is connected to the release chamber 34 via a channel 44.
  • the pressure regulator has a trigger connection 46 to which a so-called “FireTrace®” hose 48 is connected. It is a hollow body which is designed such that it bursts under a certain internal pressure if its wall temperature exceeds a certain limit at one point.
  • the internal pressure in the hose 48 is determined by the pressure regulator 42, which is connected between the trigger chamber 34 and the trigger connection 46. This can thus reduce the higher gas pressure in the extinguishing agent container 12 to a lower internal pressure in the hose 48, which corresponds to the desired triggering temperature. If the gas pressure in the extinguishing agent container 12 changes, the pressure regulator 42 keeps the internal pressure in the hose 48 largely constant, or at least substantially reduces the extent of the pressure fluctuations in the hose 48. Different types of pressure regulators can be implemented.
  • FIG. 1 shows, for example, a particularly simple, spring-loaded pressure regulator 42. This pressure regulator has a first chamber 50, which is connected to a second chamber 54 via a connecting bore 52.
  • An actuating piston 56 is axially displaceably fitted in the second chamber 54.
  • a shaft 58 which has a smaller diameter than the connecting bore 52, mechanically connects the actuating piston 56 to a closing body 60 in the first chamber 50.
  • a seat is assigned to this closing body 60, which is equipped with a sealing ring, which opens the opening of the connecting bore 52 surrounds in the first chamber 50.
  • the free cross section of the seat is considerably smaller than the cross section of the second chamber 54.
  • a spring 62 exerts a spring force on the actuating piston 56 in the direction of the first chamber 50. This spring 62 is biased by a screw-in cap 64. Under the spring force, the closing body 60 lifts off its seat, so that gas from the first chamber 50 via the connecting bore 52 into the second chamber 54.
  • a pressure builds up in the second chamber 54 which exerts a hydrostatic force on the actuating piston 56. This hydrostatic force opposes the spring force and ultimately moves the actuating piston 56 in the direction of the cap 64 until the closing body 60 lies sealingly on its seat.
  • An increase in pressure in the bottle 12 can no longer affect the pressure in the hose 48. If, however, the hose 48 bursts as intended in the event of a fire, the pressure in the second chamber 54 drops to ambient pressure and the spring 62 pushes the actuating piston 56 in the direction of the first chamber 50, so that the closing body 60 lifts off its seat.
  • the spring 62 must of course overcome the hydrostatic force which the gas pressure in the chamber 50 exerts on the closing body 60. Now the gas can flow from the trigger chamber 34 via the channel 44, the chamber 50, the connecting bore 52 and the trigger connection 46 into the burst hose 48 and escape into the environment. Since the gas flows out of the trigger chamber 34 faster than new gas flows in through the bore 38, the closing piston 28 is pressed against the cap 16 by the pressure in the bottle 12, as described above. No more gas can now flow into the release chamber 34, so that the valve remains open until the bottle 12 is completely emptied.
  • the reference number 66 denotes a block marking device for the pressure regulator 42.
  • This block marking device 66 which is installed in the axial extension of the pressure regulator 42 in the valve cap 16, comprises for example! an adjusting screw 67 which, in the screwed-in position, presses the closing body 60 against its seat.
  • a sealable cap 68 prevents access to the adjusting screw 67. In the blocked position of the pressure regulator 42, the hose 48 can be removed from the release connection 46 without the valve triggering.
  • a pressure relief valve 70 is preferably connected to the hose 48.
  • the above-described fire extinguisher valve 10 is incorporated in an alternative embodiment of the fire extinguishing device according to the invention.
  • a "FireTrace®" hose 48 ' is connected directly to the nozzle 24 of the valve 10.
  • This "FireTrace®” hose 48 ' forms the fusible closed hollow body which is connected to the trigger connection 46 of the fire extinguisher valve 10 via a connecting line 100.
  • the connecting line 100 could also be integrated directly into the valve 10.
  • the extinguishing agent flows to the point where the fire has burst and is released there.
  • This fire extinguishing device consequently has the additional advantage that the extinguishing agent is released above the source of the fire, the unreduced internal pressure in the extinguishing agent container 12 being available for releasing the extinguishing agent.

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 comprenant un récipient (12) pour agent d'extinction qui contient un gaz sous pression, et un corps creux (48) fusible servant de déclencheur, ledit corps creux (48) fusible étant relié au récipient (12) pour agent d'extinction de manière à être sollicité en pression par le gaz sous pression. Un régulateur de pression (42) est disposé entre le récipient (12) pour agent d'extinction et le corps creux (48) fusible. Ce régulateur de pression (42) permet de faire fonctionner l'extincteur également avec du CO2 comme agent d'extinction, même en cas de fortes variations de la température ambiante. Le corps creux (48) fusible peut également se présenter sous forme de conduite de transport pour l'agent d'extinction. L'invention concerne en outre une soupape appropriée pour ce type d'extincteur.
EP97914217A 1996-03-20 1997-03-10 Extincteur et soupape d'extincteur appropriee Expired - Lifetime EP0888152B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
LU88729A LU88729A1 (de) 1996-03-20 1996-03-20 Feuerloeschvorrichtung und Feuerloescherventil
LU88729 1996-03-20
LU88757A LU88757A7 (de) 1996-03-20 1996-04-30 Feuerloeschvorrichtung und Feuerloescherventil
LU88757 1996-04-30
PCT/EP1997/001217 WO1997034659A1 (fr) 1996-03-20 1997-03-10 Extincteur et soupape d'extincteur appropriee

Publications (2)

Publication Number Publication Date
EP0888152A1 true EP0888152A1 (fr) 1999-01-07
EP0888152B1 EP0888152B1 (fr) 2001-02-21

Family

ID=26640360

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97914217A Expired - Lifetime EP0888152B1 (fr) 1996-03-20 1997-03-10 Extincteur et soupape d'extincteur appropriee

Country Status (6)

Country Link
EP (1) EP0888152B1 (fr)
CN (1) CN1104918C (fr)
AU (1) AU710517B2 (fr)
DE (2) DE59703016D1 (fr)
ES (1) ES2156371T3 (fr)
WO (1) WO1997034659A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010149639A1 (fr) 2009-06-24 2010-12-29 Luxembourg Patent Company S.A. Soupape d'evacuation de gaz sous haute pression pour systeme d'extinction d'incendie ou de prevention d'explosion

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9915013D0 (en) * 1999-06-29 1999-08-25 Firetrak Limited Fire extinguishing apparatus
DE10339367A1 (de) * 2003-08-27 2005-03-31 Kidde-Deugra Brandschutzsysteme Gmbh Feuerlöscheinrichtung
CA2634921C (fr) * 2005-12-22 2013-09-24 Chubb International Holdings Limited Valve de liberation de gaz sous pression pour lutter contre les incendies
DE102007006665A1 (de) * 2007-02-10 2008-08-14 Total Walther Gmbh, Feuerschutz Und Sicherheit Verfahren und Vorrichtung zur Steuerung einer Gas-Hochdruck-Feuerlöschanlage
CA2737479A1 (fr) * 2008-09-19 2010-03-25 Peter Karalis Vanne de distribution et procede de distribution d'un fluide sous pression
DE102010028858A1 (de) * 2010-05-11 2011-11-17 Fiwarec Valves & Regulators Gmbh & Co. Kg Ventil
DE102010035525B4 (de) * 2010-08-25 2012-06-14 Minimax Gmbh & Co. Kg Vorrichtung zum Löschen von Bränden
CN102109049B (zh) * 2011-03-14 2012-12-26 宁波三安制阀有限公司 瓶头阀
CN102563160B (zh) * 2012-01-19 2016-01-20 蔡庆 一种灭火阀
EP2722077B1 (fr) * 2012-10-17 2019-08-14 Fogmaker International AB Système de détection d'incendie
CN102966775B (zh) * 2012-11-19 2014-02-26 福建高中压阀门科技有限公司 直流活塞式紧急关闭阀及其应用
CA2929396C (fr) 2013-11-04 2021-11-23 Tyco Fire Products Lp Ensemble vanne de regulation de fluide et actionneur de vanne integre
HUE039437T2 (hu) * 2013-11-04 2018-12-28 Tyco Fire Products Lp Integrált fluidum vezérlõszelep és szelepmûködtetõ szerelvény
DK178639B1 (en) * 2014-01-17 2016-09-26 Vid Fire-Kill Aps Universal Flow Control Device
RU2695389C1 (ru) * 2018-10-01 2019-07-23 Общество с ограниченной ответственностью "Пожтехника" Запорно-пусковое устройство и способ его функционирования
CN112443671B (zh) * 2020-10-14 2023-02-14 温州翰华阀门科技有限公司 一种容器阀

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Publication number Priority date Publication date Assignee Title
GB1357010A (en) * 1971-05-03 1974-06-19 Chubb Fire Security Ltd Fire-extinguishing apparatus
FR2437553A1 (fr) * 1978-09-27 1980-04-25 Cerberus Guinard Vanne a ouverture automatique, notamment pour des installations de protection contre l'incendie
US4356868A (en) * 1980-07-30 1982-11-02 Ransburg Corporation Fire-extinguishant system
GB2115905B (en) * 1982-02-27 1985-06-19 Chubb Fire Security Ltd Pressure-controlled valve
GB2128084A (en) * 1982-10-02 1984-04-26 Alec Moses Messulam Fire extinguisher
GB8926849D0 (en) * 1989-11-28 1990-01-17 Melton David L Fire extinguisher

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9734659A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010149639A1 (fr) 2009-06-24 2010-12-29 Luxembourg Patent Company S.A. Soupape d'evacuation de gaz sous haute pression pour systeme d'extinction d'incendie ou de prevention d'explosion

Also Published As

Publication number Publication date
AU710517B2 (en) 1999-09-23
EP0888152B1 (fr) 2001-02-21
ES2156371T3 (es) 2001-06-16
DE19780225D2 (de) 2000-02-10
WO1997034659A1 (fr) 1997-09-25
DE59703016D1 (de) 2001-03-29
AU2155097A (en) 1997-10-10
CN1213324A (zh) 1999-04-07
CN1104918C (zh) 2003-04-09

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