EP1103286A1 - Einrichtung zur Brandbekämpfung in Tunnels - Google Patents
Einrichtung zur Brandbekämpfung in Tunnels Download PDFInfo
- Publication number
- EP1103286A1 EP1103286A1 EP99123398A EP99123398A EP1103286A1 EP 1103286 A1 EP1103286 A1 EP 1103286A1 EP 99123398 A EP99123398 A EP 99123398A EP 99123398 A EP99123398 A EP 99123398A EP 1103286 A1 EP1103286 A1 EP 1103286A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sector
- tunnel
- fire
- valve
- valves
- 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.)
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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
- A62C99/0018—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using gases or vapours that do not support combustion, e.g. steam, carbon dioxide
-
- 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
- A62C3/0221—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires for tunnels
-
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/58—Pipe-line systems
- A62C35/64—Pipe-line systems pressurised
- A62C35/645—Pipe-line systems pressurised with compressed gas in pipework
-
- 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
Definitions
- the present invention relates to a device for fire fighting in tunnels, which with a fire alarm system.
- the fire alarm system is preferably a fire or heat detection system, such as the linear heat detection system FibroLaser from Siemens Building Technologies AG, Cerberus Division.
- This system includes a fiber optic cable mounted on the tunnel ceiling, its temperature based on the vibrations in the crystal lattice structure of the glass fiber is measured.
- the size of the fire can be determined from the length of the heated cable section close, and the location of the fire is very accurate, can be located down to about 1.5 meters.
- Fire alarm systems are a valuable aid for the fire brigade and are the prerequisite for effective fire fighting.
- the recent tunnel fires have shown that it is, especially in tunnels with only one tube and without an emergency tube, for the fire brigade it is very difficult to get to the source of the fire and fight the fire.
- the main reason for this is the immense heat development in the tunnel.
- the invention is now intended to create a device which is capable of fighting fires in tunnels without the advance of emergency personnel during the fire to the location of the fire is required.
- this problem is solved with a sprinkler system that can be triggered manually or automatically is not practical because it is very useful large water reserves would be required.
- the tunnel wind can drop the water blow away.
- the object is achieved according to the invention in that in the tunnel at intervals connected to a gas pipe acting as a storage for an inert gas and subsequently as sector valves designated opening fittings for the release of the inert gas via nozzles in one Tunnel sector are provided, and that when a fire is detected an automatic or Remote opening of at least the sector valve closest to the fire site he follows.
- a first preferred embodiment of the device according to the invention is characterized in that that the sector valves on the ceiling or on a side wall of the tunnel are installed, and that the gas pipe is installed in the tunnel itself or in a parallel tunnel.
- a second preferred embodiment is characterized in that the inert gas Nitrogen or argon formed and that the device is designed so that when opening a sector valve in its area an extinguishing concentration between 10 vol .-% and 12 vol .-% Oxygen is reached.
- carbon dioxide has the best extinguishing effect, but is toxic and is harmful to health even at a concentration of 6 vol.% In the air we breathe. With an extinguishable concentration of CO 2 , this has fatal consequences after a few seconds.
- Nitrogen on the other hand, is not toxic, so that with an extinguishable concentration of 10 to 12 vol.% Oxygen there is no immediate health hazard. For the intervention forces, nitrogen is not a hindrance to rescue, since it is non-toxic and does not tend to form fog. The same applies to argon.
- a third preferred embodiment of the device according to the invention is characterized in that that the fire alarm system is formed by a linear heat alarm system, and that the sector valves can be actuated automatically by the heat detection system.
- a fourth preferred embodiment of the device according to the invention for use in a tunnel having a ventilation device is characterized in that In the event of a fire, the ventilation device should be switched off immediately before opening a sector valve at the location of the fire and in a specific environment.
- a fifth preferred embodiment of the device according to the invention is characterized in that that the fire alarm system is coupled to a video surveillance system, and that the sector valves are remotely controlled by the operators of the video surveillance system are operable.
- the ventilation device is preferably switched off over a distance in the event of a fire about three times the length of a tunnel sector, before and after each Place of fire.
- a seventh preferred embodiment of the device according to the invention is characterized in that that a sensor for monitoring the oxygen concentration in the concerned Tunnel sector or a timer is provided, by which or which The open sector valves are closed as soon as the oxygen concentration Falls below or would fall below a value of 11% by volume.
- Another preferred embodiment of the device according to the invention is characterized in that that the pressure in the gas pipe 50 to 150 bar, preferably about 70 bar, and the Outside diameter of the gas pipe is 0.5 to 1.2 m, preferably about 0.7 m.
- the drawing shows a perspective section of a Tunnels 1.
- a fiber optic cable 2 On the ceiling of the tunnel 1, a fiber optic cable 2 is mounted, which is part of a FibroLaser type linear heat detection system (FibroLaser - registered trademark Siemens Building Technologies AG, Cerberus Division).
- the system points in addition the fiber optic cable 2 still a laser light source and an opto-electronic receiver on.
- the light generated by the laser is coupled into the fiber optic cable 2 and into it Guided in the longitudinal direction. Fluctuations in density of the quartz glass cause a continuous Scattering (Rayleigh scattering), which in turn attenuates the laser light. In addition a further light scatter occurs due to thermal lattice vibrations of the glass material so-called Raman scattering.
- a fraction of the scattered light falls within the aperture angle of the waveguide and spreads both forward and backward.
- the scattered light can be measured with a photo detector prove; by evaluating the intensity of the scatter, the local glass fiber temperature can be determined.
- the local resolution of the temperature curve along the fiber optic cable 2 is done by measuring the attenuation of the waveguide light.
- the size of the fire is one Function of the heated cable section: A short, heated section corresponds to a short one and a long, warmed distance corresponds to a big fire.
- the glass fiber cable 2 is connected to an evaluation unit or control center 3, in which the signal of the optoelectronic receiver is evaluated.
- the necessary displays such as the size of the fire, the tunnel sector affected by the fire, Direction of propagation and the like, and fire control systems are triggered.
- Such Functions are for example traffic regulation, control of the ventilation system, control emergency lighting, control of an evacuation system, triggering an extinguishing device, Alarming of emergency services and information of people in the tunnel via acoustic and / or optical means, such as light panels or loudspeakers.
- the extinguishing device is formed by a gas pipe 4, which is laid in a floor duct of the tunnel 1 or a parallel tunnel, or possibly mounted on the tunnel ceiling, which is filled with an inert gas, preferably with N 2 , and from which lines 5 via opening valves referred to as sector valves 6 are guided to nozzles 7 arranged at regular intervals on the tunnel ceiling.
- the sector valves 6 are arranged as close as possible to the pressure-carrying gas pipe 4.
- the lines 5, of which only one is shown in the drawing, are from the sector valve 6 to the Nozzles 7 normally free of pressure. They consist of an ascending one containing the sector valve 6 Branch and a horizontal branch carrying the nozzles 7 in the area of the tunnel ceiling. The ascending branch is laid in or on a side wall of the tunnel 1.
- the sector valves 6 can be actuated individually via a control line 8 connected to the control center 3.
- the pressure in the gas pipe 4 is approximately 50 to 150 bar and is preferably approximately 70 bar. Argon may possibly also be used as the inert gas.
- the control center 3 evaluates the signal of the fiber optic cable 2 detects a fire the line 8 closest to the location of the fire is detected
- the immediately adjacent sector valves 6 can also open one of the immediately adjacent sector valves 6 and thus a correspondingly longer tunnel area can be flooded with nitrogen.
- the tunnel 1 is equipped with a ventilation 10, which by the Central 3 can be switched on and off in sections.
- a ventilation 10 which by the Central 3 can be switched on and off in sections.
- the FibroLaser system is activated by the control center 3 before the sector valve concerned is opened 6 the venilation in the area of this sector valve and an additional length of two up to three tunnel sections before and after the section valve mentioned, in total over one Length up to a maximum of one kilometer, parked. Then the deletion is triggered.
- the oxygen concentration a value that is hazardous to health is reduced by oxygen sensors or possibly the section valve 6 is closed by a timer as soon as the oxygen concentration in the respective tunnel sector to a value of less than 11% by volume would decrease.
- the fire fighting device described does not need to operate the sector valves necessarily a FibroLaser system or another linear heat detection system. Essential is that the tunnel is equipped with a false alarm-proof and fast fire alarm system is.
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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)
- Fire Alarms (AREA)
Abstract
Description
- Die Brandmeldeanlage, vorzugsweise das FibroLaser-System, meldet im Kommandoraum einen Alarm im Löschsektor XX.
- Die Videokamera im Löschsektor XX wird auf den Bildschirm im Kommandoraum geschaltet.
- Im Kommandoraum wird der Alarm visuell verifiziert. Je nach Ergebnis wird entweder manuell die Löschanlage im Sektor XX ausgelöst oder es wird eine Fehlalarmtaste betätigt.
- Falls der Operateur bei Vorliegen eines Alarms innerhalb einer festgelegten Zeitspanne keine Aktion startet, wird die Löschanlage im Sektor XX automatisch ausgelöst.
Claims (12)
- Einrichtung zur Brandbekämpfung in Tunnels (1), welche mit einer Brandmeldeanlage ausgerüstet sind, dadurch gekennzeichnet, dass im Tunnel (1) in Abständen mit einem als Speicher für ein Inertgas wirkenden Gasrohr (4) verbundene und nachfolgend als Sektorventile (6) bezeichnete Öffnungsarmaturen für die Freisetzung des Inertgases über Düsen (7) in einen Tunnelsektor vorgesehen sind, und dass bei Detektion eines Brandes eine automatische oder ferngesteuerte Öffnung mindestens des dem Brandort am nächsten liegenden Sektorventils (6) erfolgt.
- Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Sektorventile (6) an der Decke oder an einer Seitenwand des Tunnels (1) montiert sind, und dass das Gasrohr (4) im Tunnel (1) selbst oder in einem Paralleltunnel verlegt ist.
- Einrichtung nach Anspruch 2, dadurch gekennzeichnet, dass das Inertgas durch Stickstoff oder Argon gebildet und dass die Einrichtung so ausgelegt ist, dass beim Öffnen eines Sektorventils (6) in dessen Bereich eine Löschkonzentration zwischen 10 Vol.-% und 12 Vol.-% Sauerstoff erreicht wird.
- Einrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Brandmeldeanlage durch ein lineares Wärmemeldesystem (3, 6) gebildet ist, und dass die Sektorventile (6) durch das Wärmemeldesystem (3, 6) automatisch betätigbar sind.
- Einrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Brandmeldeanlage mit einer Videoüberwachungsanlage gekoppelt ist, und dass die Sektorventile (6) vom Bedienungspersonal der Videoüberwachungsanlage ferngesteuert betätigbar sind.
- Einrichtung nach Anspruch 4 oder 5 zur Verwendung in einem eine Ventilationseinrichtung (10) aufweisenden Tunnel (1), dadurch gekennzeichnet, dass unmittelbar vor dem Öffnen eines Sektorventils (6) eine Abschaltung der Ventilationseinrichtung (10) am Brandort und in einer bestimmten Umgebung von diesem erfolgt.
- Einrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass jedem Sektorventil (6) eine Mehrzahl von Düsen (7) zugeordnet ist, und dass jedes Sektorventil (6) zusammen mit den zugeordneten Düsen (7) einen Tunnelsektor oder Löschsektor definiert, dessen Länge etwa 100 bis 200 Meter beträgt.
- Einrichtung nach den Ansprüchen 6 und 7, dadurch gekennzeichnet, dass die Abschaltung der Ventilationseinrichtung (10) im Brandfall über eine Strecke von etwa dem Dreifachen der Länge eines Löschsektors erfolgt, und zwar jeweils vor und nach dem Brandort.
- Einrichtung nach Anspruch 7, dadurch gekennzeichnet, dass eine bestimmte Zeitspanne nach dem Öffnen eines Sektorventils (6) ein Wiedereinschalten der Ventilationseinrichtung (10) erfolgt, und dass die genannte Zeitspanne vorzugsweise etwa 5 Minuten beträgt.
- Einrichtung nach Anspruch 7, dadurch gekennzeichnet, dass ein Sensor für die Überwachung der Sauerstoffkonzentration im betreffenden Tunnelsektor oder ein Zeitglied vorgesehen ist, durch welchen beziehungsweise welches eine Schliessung des offenenen Sektorventils (6) erfolgt, sobald die Sauerstoffkonzentration einen Wert von 11 Vol.-% unterschreitet beziehungsweise unterschreiten würde.
- Einrichtung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass der Druck im Gasrohr (4) 50 bis 150 bar, vorzugsweise etwa 70 bar, beträgt.
- Einrichtung nach Anspruch 11, dadurch gekennzeichnet, dass der Aussendurchmesser des Gasrohres 0.5 bis 1.2 Meter, vorzugsweise etwa 0.7 Meter, beträgt.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99123398A EP1103286A1 (de) | 1999-11-24 | 1999-11-24 | Einrichtung zur Brandbekämpfung in Tunnels |
EP00113659A EP1103284A3 (de) | 1999-11-24 | 2000-06-28 | Brandbekämpfungssystem für Autotunnels |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99123398A EP1103286A1 (de) | 1999-11-24 | 1999-11-24 | Einrichtung zur Brandbekämpfung in Tunnels |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1103286A1 true EP1103286A1 (de) | 2001-05-30 |
Family
ID=8239453
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99123398A Withdrawn EP1103286A1 (de) | 1999-11-24 | 1999-11-24 | Einrichtung zur Brandbekämpfung in Tunnels |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP1103286A1 (de) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10145136A1 (de) * | 2001-09-13 | 2003-04-10 | Bahn Station & Service Ag Deut | Verfahren und Anordnung zur Abschottung von Feuer und Rauch an baulichen Anlagen |
EP1312392A1 (de) * | 2001-11-15 | 2003-05-21 | Wagner Alarm- und Sicherungssysteme GmbH | Verfahren und Vorrichtung zum Löschen von Bränden in Tunneln |
DE10352437A1 (de) * | 2003-11-10 | 2005-06-16 | Wagner Alarm- Und Sicherungssysteme Gmbh | Vorrichtung zum Verhindern und Löschen von Bränden |
EP1550482A1 (de) * | 2003-12-29 | 2005-07-06 | Amrona AG | Inertisierungsverfahren zum Löschen eines Brandes |
WO2007118499A1 (en) * | 2006-04-19 | 2007-10-25 | A.P.T. Engineering S.R.L. | System and method for protecting people in a tunnel affected by a fire |
EP2149391A1 (de) * | 2008-07-30 | 2010-02-03 | Hansjürg Leibundgut | Anordnung zum Verhindern von Bränden |
EP2404645A3 (de) * | 2010-06-17 | 2013-06-19 | Kidde Technologies, Inc. | Programmierbare Steuerung für ein Brandverhütungssystem |
CN108175972A (zh) * | 2018-01-29 | 2018-06-19 | 中海监理有限公司 | 一种室内气体消防系统 |
CN108635714A (zh) * | 2018-03-29 | 2018-10-12 | 中国矿业大学 | 一种深部地下消防系统 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10201873A (ja) * | 1997-01-20 | 1998-08-04 | Hochiki Corp | トンネル防災システム |
JPH10248951A (ja) * | 1997-03-12 | 1998-09-22 | Hochiki Corp | トンネル防災システム |
WO1999013949A1 (en) * | 1997-09-15 | 1999-03-25 | Sundholm Goeran | Fire fighting apparatus |
-
1999
- 1999-11-24 EP EP99123398A patent/EP1103286A1/de not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10201873A (ja) * | 1997-01-20 | 1998-08-04 | Hochiki Corp | トンネル防災システム |
JPH10248951A (ja) * | 1997-03-12 | 1998-09-22 | Hochiki Corp | トンネル防災システム |
WO1999013949A1 (en) * | 1997-09-15 | 1999-03-25 | Sundholm Goeran | Fire fighting apparatus |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 13 30 November 1998 (1998-11-30) * |
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 14 31 December 1998 (1998-12-31) * |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10145136A1 (de) * | 2001-09-13 | 2003-04-10 | Bahn Station & Service Ag Deut | Verfahren und Anordnung zur Abschottung von Feuer und Rauch an baulichen Anlagen |
EP1312392A1 (de) * | 2001-11-15 | 2003-05-21 | Wagner Alarm- und Sicherungssysteme GmbH | Verfahren und Vorrichtung zum Löschen von Bränden in Tunneln |
DE10156042A1 (de) * | 2001-11-15 | 2003-05-28 | Wagner Alarm Sicherung | Verfahren und Vorrichtung zum Löschen von Bränden in Tunneln |
DE10352437A1 (de) * | 2003-11-10 | 2005-06-16 | Wagner Alarm- Und Sicherungssysteme Gmbh | Vorrichtung zum Verhindern und Löschen von Bränden |
US7350591B2 (en) | 2003-11-10 | 2008-04-01 | Wagner Alarm-Und Sicherungssysteme Gmbh | Device for preventing and extinguishing fires |
US9220937B2 (en) | 2003-12-29 | 2015-12-29 | Amrona Ag | Inerting method and device for extinguishing a fire |
EP1550482A1 (de) * | 2003-12-29 | 2005-07-06 | Amrona AG | Inertisierungsverfahren zum Löschen eines Brandes |
WO2005063338A1 (de) * | 2003-12-29 | 2005-07-14 | Amrona Ag | Inertisierungsverfahren und vorrichtung zum löschen eines brandes |
WO2007118499A1 (en) * | 2006-04-19 | 2007-10-25 | A.P.T. Engineering S.R.L. | System and method for protecting people in a tunnel affected by a fire |
EP2149391A1 (de) * | 2008-07-30 | 2010-02-03 | Hansjürg Leibundgut | Anordnung zum Verhindern von Bränden |
EP2404645A3 (de) * | 2010-06-17 | 2013-06-19 | Kidde Technologies, Inc. | Programmierbare Steuerung für ein Brandverhütungssystem |
CN108175972A (zh) * | 2018-01-29 | 2018-06-19 | 中海监理有限公司 | 一种室内气体消防系统 |
CN108635714A (zh) * | 2018-03-29 | 2018-10-12 | 中国矿业大学 | 一种深部地下消防系统 |
CN108635714B (zh) * | 2018-03-29 | 2023-06-13 | 中国矿业大学 | 一种深部地下消防系统 |
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