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
  • A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles

Definitions

• the present invention relates to an automatic fire extinguishing device occurring on a railway convoy.
• the technical sector of the invention is that of fire fighting on board a railway convoy
• Patent application GB 2,139,495 A (Total Walther Feuerschutz) describes an automatic fire protection device for vehicles equipped with a compressed air system which is particularly suitable for equipping an underground train consisting of several coupled transport cars of travelers.
• the device includes a tank, common to several cars, which contains an extinguisher material under air pressure and a pipe connecting this tank to sprinklers.
• the compressed air contained in the tank comes from the compressed air circuit fitted to the vehicle, in particular from the braking circuit.
• a supply line for the compressed air tank is equipped with a non-return valve to ensure automatic filling of said tank with compressed air.
• the fire extinguisher material transport pipe (consisting of salt water) is divided into several branches, feeds the sprinklers of the different vehicles of the train and includes a flexible connection between two vehicles.
• the object of the present invention is to provide a device which is simple to build, maintain and use, which overcomes the drawbacks set out above and whose availability, power and efficiency are adapted to the particular risk of a fire on board. of a moving rail convoy.
• the objective of the invention is to implement on a set of vehicles traveling in convoys, mainly on railways, means for acting on a fire source, incipient or little developed, which would occur or develop on said convoy and turn it off or circumscribe it, even while the convoy is in progress, before any other intervention outside this convoy is possible.
• this objective is achieved by the device according to the invention for extinguishing or circumscribing a fire heater, this device comprising a reservoir, means for introducing into this reservoir an extinguishing fluid, preferably in the liquid state.
• said tank, said means for introducing said extinguishing liquid and propelling it in a network of pipes, as well as said network are integrated into a convoy of railway vehicles and move with said convoy while remaining operational.
• the invention consists in equipping a tank car with means making it possible, during a fire on board a convoy incorporating said tank car, to deliver, at each end of the tank car, an extinguishing fluid under pressure by an end pipe fitted with a connection fitting to a pipe fitted to two wagons or cars forming part of the convoy and arranged on either side of the tank wagon, for the distribution to said wagons or cars of the extinguishing fluid stored in the tank car tank.
• the invention consists in proposing a tank wagon (for railway convoy) which comprises a tank (suitable for receiving a fire fighting fluid, in particular water) mounted on (or integrated into) a chassis equipped to allow it to travel on railways, for example bogies, Characterized in that it comprises:
• connection device 9 arranged at the chassis end
• At least one pump connected to the tank to be able to suck said fluid therein and connected to each of the pipe portions so as to be able to discharge said fluid there.
• a tank car whose tank (the tank) has a capacity greater than 10 m 3 and generally less than 80 m 3 , in particular situated in a range between 40 and 80 m 3. There is thus a large reserve of extinguishing fluid, generally liquid.
• a preferred embodiment is described below in which the tank wagon is equipped with two pumps which can operate simultaneously.
• the connection of these pumps to the two portions of the tank car end pipe allows the two pumps to deliver the extinguishing liquid under pressure, either to one or the other of the two end pipes to supply the part of the convoy located in front of or behind the tank car or else to the two portions of conduit simultaneously to supply both the parts of the convoy arranged upstream or downstream.
• each of these wagons or cars has (e) a longitudinal pipe extending over the entire length of the wagon (or car) and to which are connected secondary pipes capable of delivering the extinguishing liquid to sprinklers.
• the longitudinal pipes of all the wagons or cars in the protected part of the convoy are interconnected by portions of pipes, preferably flexible, to ensure continuity of the network for delivering the extinguishing fluid throughout the protected part of the convoy.
• These pipe portions are preferably integrated into each portion of the end pipe of the tank car, as well as at each end of the longitudinal pipe of each wagon or car.
• the invention consists in proposing a wagon intended for transporting a road vehicle and equipped with said longitudinal pipe for conveying the extinguishing fluid.
• FIG. 1 is a schematic longitudinal view of a tank-wagon pump comprising a tank of extinguishing liquid, pumps for propelling said liquid, pipes and the means of their connection to the rest of the convoy.
• - Fig. 2 is an embodiment of a flexible pipe connecting any two wagons from the rest of the convoy.
• - Fig. 3 is a schematic longitudinal view of a road vehicle transport wagon comprising a section of pipe for conveying the extinguishing liquid and a distribution network for the said liquid.
• - Fig. 4 is a schematic top view of said wagon.
• FIG. 5 is a schematic transverse view of said wagon.
• - Fig. 6 is a view in three parts (6a, 6b, 6c) without details, of an example of the formation of a railway convoy comprising a device according to the invention.
• - Fig. 7 is a rear transverse view of a wagon carrying a road vehicle, which comprises a particular network of sprinklers which can be temporarily connected to the pipes of the convoy.
• - Fig. 8 is a rear transverse view of a wagon carrying a road vehicle, which comprises a roof opening longitudinally in its middle part.
• a preferred embodiment of the device according to the invention includes all first :
• a reservoir 2 which is at least partially filled with extinguishing liquid 3 through the closable orifice 2b,
• Each of these motor boosters is connected upstream (suction side) to the low point 6 of the tank 2 by a portion of a longitudinal pipe 7 and, downstream, (discharge side) ment) to a 7/8 bypass loop piping on which a non-return valve 7a prohibits the return of the 8 to 6 extinguishing liquid but allows its passage in the opposite direction.
• Each front and rear portion of the pipe 7 extends, 5 downstream of the bypass loop 7/8 and through the valves 27a to an end device 9 allowing its connection to another pipe.
• a pipe 7b connects the two front and rear bypass loops 7/8 through the valve 7c.
• the device according to the invention further comprises:
• Said wagons include:
• a body frame 11 comprising solid walls 0 or openwork and a solid wall roof.
• a section of pipe 12 - said main pipe - places longitudinally from the front to the back of each of said wagons and also comprising at each of its ends a device 9 allowing its connection to another pipe 5.
• Said network 13a has ramifications 15a placed vertically on either side of the front and rear exits of said wagons 10 and on which ramifications are connected sprinkler orifices 18.
• the motorized valve 19 is actuated by a device for detecting 'fire
• the device according to the invention also applies to closed road transport vehicles (vans) FI and F2 transported by said convoy C and comprising means for watering the interior thereof in the case where
• said vans F1 comprise a roof opening longitudinally by means of known devices (not shown) and preferably in its middle part 28; the carrier wagon
• 30 10 comprises at least one row of sprinklers 16 placed immediately under its roof and above the opening part 28 of the roof of said van.
• the wagon 10 has a section 15b, connected at 15C to the pipeline
• connection orifice 30 which is placed downstream of a motorized valve 33.
• the interior of the van F2 comprises a network 13b carrying sprinklers 18 supplied with extinguishing liquid by a connection device 31, clean in the van F2, outside of it and connected to you
• the motorized valve 33 integrated into the device of the convoy C is actuated via a temporary connection 34, for example electrical, with a fire detector 35, specific to the van F2 and of known technique.
• a temporary connection 34 for example electrical
• a fire detector 35 specific to the van F2 and of known technique.
• the wagojis-tank-pump are placed substantially in the middle Y of the convoy C, as illustrated in FIG. 6.
• the operation is carried out, as for an installation of a previously known type, by prior filling of the main pipes, secondary pipes, branched networks supplying sprinklers with heat-fusible closure, as well as the tank (tank) 2.
• the volume is reserved therein so that there is compressed therein, above the surface of the extinguishing liquid, air in an amount such that all of the liquid is optionally expelled with sufficient residual pressure to maintain minimum efficiency for sprinklers - in the event of failure of the motor boosters.
• valve 27a of wagon 1 is closed in the standby position and all of the pipes 12, 23, 13, 15, is, alone, filled with compressed air. This provision avoids the use of anti-freeze product. However, it slightly delays the arrival of the extinguishing fluid on the fire.
• Non-return valves 100 arranged at the connection points with the pipe 12 maintain the separation of the two fluids.
• a pressure tank 101 with a capacity of 20 to 50 liters, similar to a bladder expansion vessel, is placed on each wagon 10, bypassing the branched network 13, and 15 and downstream of said non-return valves.
• This reservoir compensates for any leaks from these valves to the line 12, maintains in the branched network a reserve of energy contributing to the initial propulsion of extinguishing liquid and thus masks the time, which is very short but nevertheless necessary for starting and setting up. scheme of motor boosters.
• the convoy thus protected against fire by the device according to the invention then circulates normally by carrying its own automatic extinguishing device.
• the process is much the same as that of already existing fixed installations.
• the information transmitted by other detection and alarm devices are sent to the extinguishing equipment by known means, for example electric, pneumatic or hydraulic.
• the heat given off by the fire hearth causes, in a few seconds and in any case at very short notice, either the melting of the hot-melt shutters 17, or the activation of the detectors 20 and / or 35 whose signals cause 1 actuation of the motorized valves 19 and / or 33, as well as, in the second operating mode mentioned above, the opening of the motorized valve 27a. Both processes release the extinguishing liquid which is then sprayed onto the area or areas concerned.
• the triggering, even localized of the sprinklers 16 causes, concurrently with the detectors 20, the actuation of the motorized valves 19 creating, by means of the sprinklers 18 placed on the branches 15a at each front and rear outlet of the affected car, a heat shield capable of preventing or at least delaying the possible extension of the fire to neighboring wagons.
• Deflectors (not shown) of profile and orientation adapted to the configuration of the convoy protect the sprinklers from the wind effect in the event of triggering of the device while the convoy is running.
• the putting into operation of the 5 AV and / or 5 AR motor boosters is automatically triggered by the pressure drop following the opening of at least one sprinkler 16 or a motorized valve 19 and / or 33 and / or 27a , so as to keep the sprinklers in action under maximum pressure until the reserve 2 of extinguishing liquid is used up.
• the convoy is transporting open-top van road vehicles, of the FI type described above, said roof is open for boarding so that a fire breaking out in the van acts on the row of hot-melt shutters 17 placed on the roof of wagon 10.
• the convoy transports road vehicles equipped with a particular network of the F2 type described above, said network is connected, for the duration of the transport, by the orifice 31 of the convoy, by means of the flexible pipe 32 and so-called "symmetrical” or “quick” fittings fitted to these three elements.
• a fire breaking out in the enclosure, of the van F2 acts on the detectors 35 and immediately triggers the action of the open sprinklers 18.
• a tank wagon-pump can take on 50 to 60 tonnes of extinguishing liquid, ie approximately 60 m 3 constituting a reserve capable to supply, for comparison, two large fire hoses (20 m 3 / h X 2) for +/- 90 minutes.

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)
• Train Traffic Observation, Control, And Security (AREA)
• Control Of Conveyors (AREA)
• Discharge Of Articles From Conveyors (AREA)
• Chain Conveyers (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=9512444

Family Applications (1)

Country Status (7)

Families Citing this family (11)

Citations (2)

Family Cites Families (6)

• 1997
  • 1997-10-15 FR FR9713138A patent/FR2769508B1/fr not_active Expired - Fee Related
• 1998
  • 1998-10-08 AT AT98947634T patent/ATE361777T1/de not_active IP Right Cessation
  • 1998-10-08 AU AU94480/98A patent/AU9448098A/en not_active Abandoned
  • 1998-10-08 WO PCT/FR1998/002158 patent/WO1999019026A1/fr active IP Right Grant
  • 1998-10-08 JP JP2000515656A patent/JP4217857B2/ja not_active Expired - Fee Related
  • 1998-10-08 EP EP98947634A patent/EP1023110B1/de not_active Expired - Lifetime
  • 1998-10-08 DE DE69837767T patent/DE69837767D1/de not_active Expired - Lifetime

Patent Citations (2)

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events