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EP0774277A1 - Fire curtain - Google Patents

Fire curtain Download PDF

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Publication number
EP0774277A1
EP0774277A1 EP96402469A EP96402469A EP0774277A1 EP 0774277 A1 EP0774277 A1 EP 0774277A1 EP 96402469 A EP96402469 A EP 96402469A EP 96402469 A EP96402469 A EP 96402469A EP 0774277 A1 EP0774277 A1 EP 0774277A1
Authority
EP
European Patent Office
Prior art keywords
curtain
walls
fluid
construction
wall
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
EP96402469A
Other languages
German (de)
French (fr)
Other versions
EP0774277B1 (en
Inventor
Marc Joly
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.)
D'exploitation Du Parc Des Expositions de la Ville De Paris Ste
Original Assignee
D'exploitation Du Parc Des Expositions de la Ville De Paris Ste
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Application filed by D'exploitation Du Parc Des Expositions de la Ville De Paris Ste filed Critical D'exploitation Du Parc Des Expositions de la Ville De Paris Ste
Publication of EP0774277A1 publication Critical patent/EP0774277A1/en
Application granted granted Critical
Publication of EP0774277B1 publication Critical patent/EP0774277B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/06—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type
    • E06B9/0692—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising flexible sheets as closing screen
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/10—Fire-proof curtains

Definitions

  • the present invention relates to a fire curtain.
  • Such curtains are used in construction, and in particular in establishments open to the public, in order to prevent the spread of fires between different parts of the construction. These curtains thus make it possible to compartmentalize large volumes and generally consist of a canvas limiting the propagation of flames and fumes during a fire.
  • the present invention aims to solve the aforementioned drawbacks by proposing a fire curtain increasing the protection of the adjoining premises to a part in which a fire has started.
  • the fire curtain targeted by the invention has an upper end fixed to an upper frame of a construction, the frame comprising means for sprinkling a fluid on the curtain.
  • this curtain is characterized in that it comprises two walls integral with one another along a lower end and vertical edges of the curtain, the watering means 22 being adapted to water by this fluid at least one interior face of a wall.
  • At least one of the vertical edges of the curtain comprises, near the lower end of the curtain, means for discharging the fluid from the spraying means, a wall of said construction, adjacent to the vertical edge, comprising means for recovering said fluid.
  • the evacuation means allow the fluid to exit via one or both vertical edges of the curtain, at the level of the vertical walls.
  • At least one of the vertical edges comprises a fluid discharge orifice arranged at a predetermined height above the lower end of the curtain.
  • the fluid used is a liquid such as water
  • a predetermined volume of this liquid is accumulated in the lower part of the curtain.
  • This liquid trapped on the lower end of the curtain makes it possible to ballast the latter, thus ensuring good tension of the curtain.
  • the curtain thus ballasted is kept vertical even in the event of horizontal overloads due to the wind.
  • the lower end of the curtain can also exactly fit the floor and any objects accidentally under the curtain when it is deployed.
  • the two walls are connected by bands forming spacers and of equal length.
  • the bands forming spacers are adapted to break under a tensile force of intensity substantially equal to the weight of one of the two walls.
  • a fire curtain 10 is fixed to an upper frame 21 of a construction 20.
  • the latter may for example be a large building for industrial purposes or intended to accommodate a large number of people.
  • the curtain 10 comprises two walls 11 integral with one another along a lower end 11d and vertical edges 11e of the curtain 10.
  • These two walls 11 include upper ends 11c fixed to the upper frame 21 over the entire width of the curtain 10.
  • the curtain 10 thus forms a pocket attached to the upper frame 21.
  • the walls 11 are made of fabric of classes M1 or M0 making it possible to limit the propagation of flames and hot or flammable gases and to thermally isolate the two parts of the construction separated by the curtain 10.
  • These walls are made up as examples of fabrics and glass fibers, cotton / polyester fabrics or a ceramic fiber reinforcement keep on going. These fabrics are liquid-tight or allow only a little liquid seepage in the case of a cotton / polyester fabric.
  • Means for sprinkling a fluid 23 on the curtain are provided on the upper frame 21 of the construction 20.
  • these sprinkler means 22 are adapted to sprinkle with the fluid at least one inner face 11a of a wall 11, that is to say one of the faces 11a facing each other. of the two walls 11.
  • the fluid used in the example described below is water. Another liquid or refrigerant gas could also be used.
  • At least one of the vertical edges 11e comprises, near the lower end 11d of the curtain 10, means 12 for evacuating the fluid from the spraying means 22.
  • a wall 26 of the construction 20, adjacent to the vertical edge 11e of the curtain 10, includes means 28 for recovering the fluid.
  • the discharge means 12 consist of an orifice disposed at a predetermined height above the lower end 11d of the curtain 10.
  • the water escaping through this orifice 12 is recovered in the recovery means 28 which may include a pumping device 28 and possibly recycling the water to redistribute it to the sprinkling means 22.
  • the discharge orifice 12 can be located at a height equal to approximately 250 mm above the ground 31 and the lower end 11d of the curtain 10, that is to say equal to approximately 1 / 40th of the total height of the curtain, so that a volume of water remains trapped inside the curtain 10 with double walls 11.
  • this fire curtain At the end of use of this fire curtain or to maneuver it, one can evacuate the volume of water trapped by an electro-mechanical valve and a flexible pipe introduced into the evacuation orifices 12 located on each side edge 11th of the curtain 10.
  • the sprinkler means 22 comprise two series of nozzles 30 arranged on the upper frame 21 of the construction 20. These nozzles are adapted to spray an inner face 11a respectively of each wall 11, independently of one another.
  • One or the other wall or both can be irrigated simultaneously.
  • the sprinkler means 22 comprise water supply pipes 32 equipped with nozzles distributed uniformly over the width of the curtain 10, that is to say along the upper end 11e of the curtain 10.
  • projection nozzles 30 make it possible to form a curtain of water or a sheet of water over the entire area of the interior face 11a of a fabric 11.
  • This internal irrigation with water causes, in the event of a fire, the evaporation of the water ensuring a movement of convection and cooling of the elements internal to the curtain 10, such as the irrigation system 30, 32 itself or the frame part 21 supporting the curtain.
  • the two walls 11 are connected by strips 13 forming spacers and equal length to keep the two walls 11 parallel to each other.
  • the strips 13 may consist of strips of canvas identical to that used for the walls 11.
  • These strips 13 can have a length of between 0.5 and 1.5 meters, thereby adjusting the spacing between the two walls 11. Preferably, this spacing is between 0.8 and 1 meter.
  • the strips 13 forming spacers are adapted to break under a tensile force of intensity substantially equal to the weight of one of the two walls 11.
  • the bands 13 have a breaking strength calculated to allow the bands 13 to be torn and the place to be held in place. other wall, on the side of the construction area remaining in place.
  • a rupture zone 21a is provided in the framework 21 allowing the collapse of one of the parts of the construction 20 leaving the adjacent parts stable.
  • the curtain 10 according to the invention extends substantially under this rupture zone 21a.
  • the curtain 10 has several strips 13 distributed regularly over its length as illustrated in FIG. 5 and several strips 13 superimposed on the height of the curtain as shown in FIG. 2.
  • Each strip 13 forming a spacer comprises a connecting piece 14 adapted to slide on a cable or ribbon 15, this cable or ribbon 15 having a first end 15a fixed to the lower end 11d of the curtain and a second end 15b fixed to a reel 23 secured to the upper frame 21 of the construction 20.
  • protective plates 24 are fixed to the upper frame 21 and extend towards the ground 31 over a height sufficient to hide the entire curtain 10 when it is in the folded position as illustrated in the figure. 4A. These plates have a length equal to that of the curtain, between 80 and 100 m and a height equal to about 0.5 m.
  • This height corresponds substantially to the size of the curtain 10 folded when the latter has a height of about 10 meters in the deployed position.
  • protective plates 25 are integral with the vertical walls 26 of the construction and extend parallel to the curtain 10, on each side of the latter.
  • a zone 27 can be delimited by the plates 25, the vertical wall 26 adjacent to an edge 11e of the curtain 10 and a second side wall 26a parallel to the first vertical wall 26 in order to house the sprinkler control and water recovery mechanisms. the water.
  • These protective plates 24 and 25 are preferably made of a fireproof material of class M0.
  • the deployment of the curtain 10 is controlled either manually or automatically, following an order given for example by a smoke detector.
  • the reel 23 is then driven in rotation, by a motor (not shown) for example and the cable or ribbon 15 is then progressively unwound.
  • the bands 13 slide progressively on the cable 15 so that the walls 11 unfold.
  • the irrigation of the curtain is then controlled either on the two interior faces 11a, or only on the face 11a of the wall exposed to the fire.
  • Control means can be adapted to automatically control the starting of the irrigation nozzles 30 projecting water onto this wall 11 held in place, by alternating the operation of the two series of nozzles 30 .
  • the curtain according to the invention therefore makes it possible to compartmentalize buildings of large volumes and thus very effectively limit the spread of fires.

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  • Structural Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Civil Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Architecture (AREA)
  • Emergency Management (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)
  • Fire-Extinguishing Compositions (AREA)
  • Insulated Conductors (AREA)
  • Building Environments (AREA)
  • Fireproofing Substances (AREA)

Abstract

The curtain (10) has an upper end (11c) fastened to an overhead framework (21) of a structure (20) which is equipped with sprinklers (22). The curtain has two walls (11) which are joined together along their lower edges (11d) and vertical sides. The sprinklers are positioned so that they spray liquid onto the inner surface of at least one of the walls. At least one of the curtain's vertical edges has outlets for the liquid adjacent to its lower edge, linked to a recuperator. Additionally, the inside of the curtain has spacers (13) between the walls. The spacers are able to slide along a central strip or cable (15) and break under the weight of one wall of the curtain.

Description

La présente invention concerne un rideau coupe-feu.The present invention relates to a fire curtain.

De tels rideaux sont utilisés dans les constructions, et notamment dans les établissements recevant du public, afin d'éviter la propagation des incendies entre différentes parties de la construction. Ces rideaux permettent ainsi de compartimenter de grands volumes et sont généralement constitués d'une toile limitant la propagation des flammes et des fumées lors d'un incendie.Such curtains are used in construction, and in particular in establishments open to the public, in order to prevent the spread of fires between different parts of the construction. These curtains thus make it possible to compartmentalize large volumes and generally consist of a canvas limiting the propagation of flames and fumes during a fire.

Ces rideaux sont en général repliés en temps normal et ne sont déployés qu'en cas d'incendie.These curtains are generally folded in normal times and are only deployed in the event of a fire.

Il est connu d'arroser ces rideaux uniformément sur l'une des faces de la toile, afin notamment de limiter la propagation de la chaleur et la montée en température de la toile.It is known to sprinkle these curtains uniformly on one of the faces of the fabric, in particular in order to limit the propagation of heat and the rise in temperature of the fabric.

Cependant, ces rideaux nécessitent de créer au niveau du sol des rigoles pour récupérer l'eau à l'extrémité inférieure du rideau. Ces rigoles de récupération forment des obstacles et ne peuvent pas être masquées par un revêtement de sol.However, these curtains require creating channels at ground level to collect the water at the lower end of the curtain. These recovery channels form obstacles and cannot be masked by a floor covering.

De plus, une récupération correcte de l'eau n'est réalisée que si le rideau est dans sa position normale verticale. Or, il n'est pas rare que le rideau, sous l'effet du vent ou à cause d'obstacles, soit dévié de cette position verticale lorsqu'il est déployé en cas d'incendie. L'eau est mal, voire pas du tout, récupérée dans les rigoles, provoquant ainsi l'inondation des locaux.In addition, correct water recovery is only achieved if the curtain is in its normal vertical position. However, it is not uncommon that the curtain, under the effect of the wind or because of obstacles, is deviated from this vertical position when it is deployed in the event of fire. The water is badly, if not at all, recovered in the drains, thus causing the flooding of the premises.

La présente invention a pour but de résoudre les inconvénients précités en proposant un rideau coupe-feu augmentant la protection des locaux attenants à une partie dans laquelle s'est déclaré un incendie.The present invention aims to solve the aforementioned drawbacks by proposing a fire curtain increasing the protection of the adjoining premises to a part in which a fire has started.

Le rideau coupe-feu visé par l'invention possède une extrémité supérieure fixée à une ossature supérieure d'une construction, l'ossature comportant des moyens d'arrosage d'un fluide sur le rideau.The fire curtain targeted by the invention has an upper end fixed to an upper frame of a construction, the frame comprising means for sprinkling a fluid on the curtain.

Suivant l'invention, ce rideau est caractérisé en ce qu'il comprend deux parois solidaires l'une de l'autre le long d'une extrémité inférieure et des bords verticaux du rideau, les moyens d'arrosage 22 étant adaptés à arroser par ce fluide au moins une face intérieure d'une paroi.According to the invention, this curtain is characterized in that it comprises two walls integral with one another along a lower end and vertical edges of the curtain, the watering means 22 being adapted to water by this fluid at least one interior face of a wall.

Ainsi, grâce à ce rideau à double-parois, formant sensiblement une poche, et à l'arrosage des faces intérieures des parois, l'eau est récupérée à l'intérieur même du rideau.Thus, thanks to this double-walled curtain, substantially forming a pocket, and by sprinkling the interior faces of the walls, the water is recovered inside the curtain itself.

Il n'est donc plus nécessaire de prévoir au niveau du sol des rigoles de récupération.It is therefore no longer necessary to provide recovery channels at ground level.

De plus, tout risque d'inondation des locaux protégés est ainsi évité.In addition, any risk of flooding of the protected premises is thus avoided.

Selon une version avantageuse de l'invention, au moins un des bords verticaux du rideau comprend à proximité de l'extrémité inférieure du rideau, des moyens d'évacuation du fluide issu des moyens d'arrosage, une paroi de ladite construction, adjacente au bord vertical, comprenant des moyens de récupération dudit fluide.According to an advantageous version of the invention, at least one of the vertical edges of the curtain comprises, near the lower end of the curtain, means for discharging the fluid from the spraying means, a wall of said construction, adjacent to the vertical edge, comprising means for recovering said fluid.

Ainsi, lorsqu'un fort débit de fluide est utilisé, il peut être nécessaire d'évacuer au moins une partie de ce fluide. Les moyens d'évacuation permettent de réaliser la sortie du fluide par un ou les deux bords verticaux du rideau, au niveau des parois verticales.Thus, when a high flow of fluid is used, it may be necessary to evacuate at least part of this fluid. The evacuation means allow the fluid to exit via one or both vertical edges of the curtain, at the level of the vertical walls.

Selon une version préférée de l'invention, au moins un des bords verticaux comprend un orifice d'évacuation du fluide disposé à une hauteur prédéterminée au-dessus de l'extrémité inférieure du rideau.According to a preferred version of the invention, at least one of the vertical edges comprises a fluid discharge orifice arranged at a predetermined height above the lower end of the curtain.

Par conséquent, lorsque le fluide utilisé est un liquide tel que de l'eau, un volume prédéterminé de ce liquide est accumulé en partie inférieure du rideau. Ce liquide emprisonné sur l'extrémité inférieure du rideau permet de lester cette dernière, assurant ainsi une bonne tension du rideau.Consequently, when the fluid used is a liquid such as water, a predetermined volume of this liquid is accumulated in the lower part of the curtain. This liquid trapped on the lower end of the curtain makes it possible to ballast the latter, thus ensuring good tension of the curtain.

L'étanchéité aux fumées ou au gaz au niveau du sol est ainsi parfaite.The gas or gas tightness at ground level is thus perfect.

De plus, le rideau ainsi lesté est maintenu vertical même en cas de surcharges horizontales dues au vent.In addition, the curtain thus ballasted is kept vertical even in the event of horizontal overloads due to the wind.

L'extrémité inférieure du rideau peut en outre épouser exactement le sol et les éventuels objets se trouvant accidentellement sous le rideau lorsque ce dernier est déployé.The lower end of the curtain can also exactly fit the floor and any objects accidentally under the curtain when it is deployed.

Selon une autre version avantageuse de l'invention, les deux parois sont reliées par des bandes formant entretoises et de longueur égale.According to another advantageous version of the invention, the two walls are connected by bands forming spacers and of equal length.

Ces bandes formant entretoises permettent de maintenir les deux parois du rideau en regard l'une de l'autre.These bands forming spacers make it possible to keep the two walls of the curtain facing each other.

Selon une version préférée, les bandes formant entretoises sont adaptées à se rompre sous une force de traction d'intensité sensiblement égale au poids d'une des deux parois.According to a preferred version, the bands forming spacers are adapted to break under a tensile force of intensity substantially equal to the weight of one of the two walls.

Ainsi, en cas d'affaissement de l'une des parois, l'autre paroi reste suspendue à l'ossature supérieure de la construction.Thus, in the event of one of the walls collapsing, the other wall remains suspended from the upper framework of the construction.

La protection contre le feu est donc garantie même lorsque l'une des parties de la construction s'effondre, un rideau d'eau étant interposé entre le rideau restant et le feu.Protection against fire is therefore guaranteed even when one of the parts of the construction collapses, a curtain of water being interposed between the remaining curtain and the fire.

D'autres particularités et avantages de l'invention apparaîtront encore dans la description ci-après :Other features and advantages of the invention will appear in the description below:

Aux dessins annexés, donnés à titre d'exemples non limitatifs :

  • la figure 1 est une vue en coupe d'un rideau en cours de déploiement ;
  • la figure 2 est une vue en coupe du rideau de la figure 1 en position déployée ;
  • la figure 3 est une vue en coupe horizontale partielle selon la ligne III-III à la figure 2 ;
  • les figures 4A, 4B, 4C, 4D et 4E sont des vues schématiques illustrant le déploiement d'un rideau conforme à l'invention ; et
  • la figure 5 est une vue en coupe selon la ligne V-V à la figure 2.
In the appended drawings, given by way of nonlimiting examples:
  • Figure 1 is a sectional view of a curtain during deployment;
  • Figure 2 is a sectional view of the curtain of Figure 1 in the deployed position;
  • Figure 3 is a partial horizontal sectional view along line III-III in Figure 2;
  • Figures 4A, 4B, 4C, 4D and 4E are schematic views illustrating the deployment of a curtain according to the invention; and
  • FIG. 5 is a sectional view along the line VV in FIG. 2.

En référence tout d'abord à la figure 1, un rideau coupe-feu 10 est fixé à une ossature supérieure 21 d'une construction 20.Referring firstly to FIG. 1, a fire curtain 10 is fixed to an upper frame 21 of a construction 20.

Cette dernière peut être par exemple un édifice de grandes dimensions à des fins industrielles ou destiné à recevoir un grand nombre de personnes.The latter may for example be a large building for industrial purposes or intended to accommodate a large number of people.

Elle comprend de manière connue une ossature supérieure 21 supportant la couverture.It comprises in known manner an upper frame 21 supporting the cover.

Le rideau 10 comprend deux parois 11 solidaires l'une de l'autre le long d'une extrémité inférieure 11d et des bords verticaux 11e du rideau 10.The curtain 10 comprises two walls 11 integral with one another along a lower end 11d and vertical edges 11e of the curtain 10.

Ces deux parois 11 comprennent des extrémités supérieures 11c fixées à l'ossature supérieure 21 sur toute la largeur du rideau 10. Le rideau 10 forme ainsi une poche accrochée à l'ossature supérieure 21.These two walls 11 include upper ends 11c fixed to the upper frame 21 over the entire width of the curtain 10. The curtain 10 thus forms a pocket attached to the upper frame 21.

Les parois 11 sont en toile de classes M1 ou M0 permettant de limiter la propagation des flammes et des gaz chauds ou inflammables et d'isoler thermiquement les deux parties de la construction séparées par le rideau 10.The walls 11 are made of fabric of classes M1 or M0 making it possible to limit the propagation of flames and hot or flammable gases and to thermally isolate the two parts of the construction separated by the curtain 10.

Ces parois sont constituées à titre d'exemples de tissus et de fibres de verre, de tissus en coton/polyester ou d'une armature en fibres de céramique continue. Ces toiles sont étanches aux liquides ou autorisent seulement un faible suintement du liquide dans le cas d'un tissu en coton/polyester.These walls are made up as examples of fabrics and glass fibers, cotton / polyester fabrics or a ceramic fiber reinforcement keep on going. These fabrics are liquid-tight or allow only a little liquid seepage in the case of a cotton / polyester fabric.

Des moyens d'arrosage 23 d'un fluide sur le rideau sont prévus sur l'ossature supérieure 21 de la construction 20.Means for sprinkling a fluid 23 on the curtain are provided on the upper frame 21 of the construction 20.

Conformément à l'invention, ces moyens d'arrosage 22 sont adaptés à arroser par le fluide au moins une face intérieure 11a d'une paroi 11, c'est-à-dire l'une des faces 11a en vis-à-vis des deux parois 11.According to the invention, these sprinkler means 22 are adapted to sprinkle with the fluid at least one inner face 11a of a wall 11, that is to say one of the faces 11a facing each other. of the two walls 11.

Le fluide utilisé dans l'exemple décrit ci-après est de l'eau. Un autre liquide ou un gaz réfrigérant pourrait également être employé.The fluid used in the example described below is water. Another liquid or refrigerant gas could also be used.

Comme illustré à la figure 3, au moins un des bords verticaux 11e comprend à proximité de l'extrémité inférieure 11d du rideau 10, des moyens d'évacuation 12 du fluide issu des moyens d'arrosage 22.As illustrated in FIG. 3, at least one of the vertical edges 11e comprises, near the lower end 11d of the curtain 10, means 12 for evacuating the fluid from the spraying means 22.

Une paroi 26 de la construction 20, adjacente au bord vertical 11e du rideau 10, comprend des moyens de récupération 28 du fluide.A wall 26 of the construction 20, adjacent to the vertical edge 11e of the curtain 10, includes means 28 for recovering the fluid.

Dans cet exemple, les moyens d'évacuation 12 sont constitués d'un orifice disposé à une hauteur prédéterminée au-dessus de l'extrémité inférieure 11d du rideau 10.In this example, the discharge means 12 consist of an orifice disposed at a predetermined height above the lower end 11d of the curtain 10.

L'eau s'échappant par cet orifice 12 est récupérée dans les moyens de récupération 28 qui peuvent comprendre un dispositif de pompage 28 et éventuellement de recyclage de l'eau pour redistribuer celle-ci aux moyens d'arrosage 22.The water escaping through this orifice 12 is recovered in the recovery means 28 which may include a pumping device 28 and possibly recycling the water to redistribute it to the sprinkling means 22.

Comme bien illustré à la figure 2, l'orifice d'évacuation 12 peut être situé à une hauteur égale à 250 mm environ au-dessus du sol 31 et de l'extrémité inférieure 11d du rideau 10, c'est-à-dire égale à environ 1/40ième de la hauteur totale du rideau, de sorte qu'un volume d'eau reste prisonnier à l'intérieur du rideau 10 à double parois 11.As illustrated in FIG. 2, the discharge orifice 12 can be located at a height equal to approximately 250 mm above the ground 31 and the lower end 11d of the curtain 10, that is to say equal to approximately 1 / 40th of the total height of the curtain, so that a volume of water remains trapped inside the curtain 10 with double walls 11.

Cette accumulation d'eau en partie inférieure du rideau 10 assure la stabilité de ce dernier et une bonne tension, ainsi que l'étanchéité au sol 31 d'une zone par rapport à une autre séparée par le rideau 10.This accumulation of water in the lower part of the curtain 10 ensures the stability of the latter and good tension, as well as the sealing on the ground 31 of one zone relative to another separated by the curtain 10.

En fin d'utilisation de ce rideau coupe-feu ou pour manoeuvrer celui-ci, on peut évacuer le volume d'eau emprisonné par une vanne électro-mécanique et une tuyauterie souple introduite dans les orifices d'évacuation 12 situés sur chaque bord latéral 11e du rideau 10.At the end of use of this fire curtain or to maneuver it, one can evacuate the volume of water trapped by an electro-mechanical valve and a flexible pipe introduced into the evacuation orifices 12 located on each side edge 11th of the curtain 10.

Les moyens d'arrosage 22 comprennent deux séries de buses 30 disposées sur l'ossature supérieure 21 de la construction 20. Ces buses sont adaptées à arroser une face intérieure 11a respectivement de chaque paroi 11, indépendamment l'une de l'autre.The sprinkler means 22 comprise two series of nozzles 30 arranged on the upper frame 21 of the construction 20. These nozzles are adapted to spray an inner face 11a respectively of each wall 11, independently of one another.

On peut obtenir l'irrigation de l'une ou l'autre des parois ou des deux simultanément.One or the other wall or both can be irrigated simultaneously.

Les moyens d'arrosage 22 comprennent des tuyauteries 32 d'amenée d'eau équipées de buses réparties uniformément sur la largeur du rideau 10, c'est-à-dire le long de l'extrémité supérieure 11e du rideau 10.The sprinkler means 22 comprise water supply pipes 32 equipped with nozzles distributed uniformly over the width of the curtain 10, that is to say along the upper end 11e of the curtain 10.

Ces buses de projection 30 permettent de former un rideau d'eau ou une lame d'eau sur toute la superficie de la face intérieure 11a d'une toile 11.These projection nozzles 30 make it possible to form a curtain of water or a sheet of water over the entire area of the interior face 11a of a fabric 11.

Cette irrigation intérieure par de l'eau provoque en cas d'incendie, une évaporation de l'eau assurant un mouvement de convection et un refroidissement des éléments intérieurs au rideau 10, tel que le système d'irrigation 30, 32 lui-même ou la partie d'ossature 21 supportant le rideau.This internal irrigation with water causes, in the event of a fire, the evaporation of the water ensuring a movement of convection and cooling of the elements internal to the curtain 10, such as the irrigation system 30, 32 itself or the frame part 21 supporting the curtain.

Comme illustré à la figure 5, les deux parois 11 sont reliées par des bandes 13 formant entretoises et de longueur égale afin de maintenir les deux parois 11 parallèles l'une à l'autre.As illustrated in FIG. 5, the two walls 11 are connected by strips 13 forming spacers and equal length to keep the two walls 11 parallel to each other.

Les bandes 13 peuvent être constituées de lanières en toile identique à celle utilisée pour les parois 11.The strips 13 may consist of strips of canvas identical to that used for the walls 11.

Ces bandes 13 peuvent avoir une longueur comprise entre 0,5 et 1,5 mètre, réglant ainsi l'écartement entre les deux parois 11. De préférence, cet écartement est compris entre 0,8 et 1 mètre.These strips 13 can have a length of between 0.5 and 1.5 meters, thereby adjusting the spacing between the two walls 11. Preferably, this spacing is between 0.8 and 1 meter.

Les bandes 13 formant entretoises sont adaptées à se rompre sous une force de traction d'intensité sensiblement égale au poids d'une des deux parois 11.The strips 13 forming spacers are adapted to break under a tensile force of intensity substantially equal to the weight of one of the two walls 11.

Ainsi, si l'une des parties de l'ossature supérieure 21 s'effondre avec l'une des parois 11, les bandes 13 ont une résistance à la rupture calculée pour permettre le déchirement des bandes 13 et le maintien en place de l'autre paroi, du côté de la zone de la construction restant en place.Thus, if one of the parts of the upper framework 21 collapses with one of the walls 11, the bands 13 have a breaking strength calculated to allow the bands 13 to be torn and the place to be held in place. other wall, on the side of the construction area remaining in place.

Ainsi, comme représenté aux figures 2 et 3, une zone de rupture 21a est aménagée dans l'ossature 21 permettant l'affaissement d'une des parties de la construction 20 en laissant les parties adjacentes stables. Le rideau 10 conforme à l'invention s'étend sensiblement sous cette zone de rupture 21a.Thus, as shown in FIGS. 2 and 3, a rupture zone 21a is provided in the framework 21 allowing the collapse of one of the parts of the construction 20 leaving the adjacent parts stable. The curtain 10 according to the invention extends substantially under this rupture zone 21a.

Le rideau 10 comporte plusieurs bandes 13 réparties régulièrement sur sa longueur comme illustré à la figure 5 et plusieurs bandes 13 superposées sur la hauteur du rideau comme représenté à la figure 2.The curtain 10 has several strips 13 distributed regularly over its length as illustrated in FIG. 5 and several strips 13 superimposed on the height of the curtain as shown in FIG. 2.

Chaque bande 13 formant entretoise comporte une pièce de liaison 14 adaptée à coulisser sur un câble ou ruban 15, ce câble ou ruban 15 ayant une première extrémité 15a fixée à l'extrémité inférieure 11d du rideau et une seconde extrémité 15b fixée à un enrouleur 23 solidaire de l'ossature supérieure 21 de la construction 20.Each strip 13 forming a spacer comprises a connecting piece 14 adapted to slide on a cable or ribbon 15, this cable or ribbon 15 having a first end 15a fixed to the lower end 11d of the curtain and a second end 15b fixed to a reel 23 secured to the upper frame 21 of the construction 20.

Lorsque le câble ou le ruban 15 est enroulé sur l'enrouleur 23, l'ensemble des bandes formant entretoise 13 sont pliées les unes sur les autres de sorte que les deux parois 11 sont repliées à proximité de l'ossature supérieure 21 de la construction 20.When the cable or the ribbon 15 is wound on the reel 23, the set of spacer bands 13 are folded over one another so that the two walls 11 are folded close to the upper frame 21 of the construction 20.

De préférence, des plaques 24 de protection sont fixées à l'ossature supérieure 21 et s'étendent vers le sol 31 sur une hauteur suffisante pour masquer l'ensemble du rideau 10 lorsqu'il est en position repliée tel qu'illustré à la figure 4A. Ces plaques ont une longueur égale à celle du rideau, comprise entre 80 et 100 m et une hauteur égale à environ 0,5 m.Preferably, protective plates 24 are fixed to the upper frame 21 and extend towards the ground 31 over a height sufficient to hide the entire curtain 10 when it is in the folded position as illustrated in the figure. 4A. These plates have a length equal to that of the curtain, between 80 and 100 m and a height equal to about 0.5 m.

Cette hauteur correspond sensiblement à l'encombrement du rideau 10 replié lorsque ce dernier a une hauteur d'environ 10 mètres en position déployée.This height corresponds substantially to the size of the curtain 10 folded when the latter has a height of about 10 meters in the deployed position.

De même, des plaques de protection 25 sont solidaires des parois verticales 26 de la construction et s'étendent parallèlement au rideau 10, de chaque côté de celui-ci.Likewise, protective plates 25 are integral with the vertical walls 26 of the construction and extend parallel to the curtain 10, on each side of the latter.

Une zone 27 peut être délimitée par les plaques 25, la paroi verticale 26 adjacente à un bord 11e du rideau 10 et une seconde paroi latérale 26a parallèle à la première paroi verticale 26 afin de loger les mécanismes de commande d'arrosage et de récupération de l'eau.A zone 27 can be delimited by the plates 25, the vertical wall 26 adjacent to an edge 11e of the curtain 10 and a second side wall 26a parallel to the first vertical wall 26 in order to house the sprinkler control and water recovery mechanisms. the water.

Ces plaques de protection 24 et 25 sont de préférence réalisées en un matériau coupe-feu de classe M0.These protective plates 24 and 25 are preferably made of a fireproof material of class M0.

Le fonctionnement va maintenant être décrit notamment en référence aux figures 4A à 4E.The operation will now be described in particular with reference to FIGS. 4A to 4E.

En cas d'incendie, le déploiement du rideau 10 est commandé soit manuellement, soit automatiquement, suite à un ordre donné par exemple par un détecteur de fumées. L'enrouleur 23 est alors entraîné en rotation, par un moteur (non représenté) par exemple et le câble ou ruban 15 est alors progressivement déroulé. Les bandes 13 coulissent au fur et à mesure sur le câble 15 de sorte que les parois 11 se déplient.In the event of a fire, the deployment of the curtain 10 is controlled either manually or automatically, following an order given for example by a smoke detector. The reel 23 is then driven in rotation, by a motor (not shown) for example and the cable or ribbon 15 is then progressively unwound. The bands 13 slide progressively on the cable 15 so that the walls 11 unfold.

L'irrigation du rideau est alors commandée soit sur les deux faces intérieures 11a, soit seulement sur la face 11a de la paroi exposée au feu.The irrigation of the curtain is then controlled either on the two interior faces 11a, or only on the face 11a of the wall exposed to the fire.

En cas de rupture de l'ossature 21 de la construction 20 dans la zone en feu, seule l'autre paroi 11 reste suspendue à la partie restant en place de la construction 10.In the event of the framework 21 of the construction 20 breaking in the burning zone, only the other wall 11 remains suspended from the part remaining in place of the construction 10.

Des moyens de commande, connus en eux-mêmes, peuvent être adaptés à commander automatiquement la mise en marche des buses d'irrigation 30 projetant de l'eau sur cette paroi 11 maintenue en place, en alternant le fonctionnement des deux séries de buses 30.Control means, known in themselves, can be adapted to automatically control the starting of the irrigation nozzles 30 projecting water onto this wall 11 held in place, by alternating the operation of the two series of nozzles 30 .

Le rideau conforme à l'invention permet donc d'assurer le compartimentage des édifices de grands volumes et de limiter ainsi de manière très efficace la propagation des incendies.The curtain according to the invention therefore makes it possible to compartmentalize buildings of large volumes and thus very effectively limit the spread of fires.

Bien entendu, de nombreuses modifications peuvent être apportées à l'exemple décrit ci-dessus sans sortir du cadre de l'invention.Of course, many modifications can be made to the example described above without departing from the scope of the invention.

Claims (8)

Rideau coupe-feu possédant une extrémité supérieure (11c) fixée à une ossature supérieure (21) d'une construction (20), l'ossature (21) comportant des moyens d'arrosage (22) d'un fluide sur le rideau (10), caractérisé en ce que le rideau (10) comprend- deux parois (11) solidaires l'une de l'autre le long d'une extrémité inférieure (11d) et des bords verticaux (11e) dudit rideau, les moyens d'arrosage (22) d'un fluide étant adaptés à arroser par ledit fluide au moins une face intérieure (11a) d'une paroi (11).Fire curtain having an upper end (11c) fixed to an upper frame (21) of a construction (20), the frame (21) comprising means for sprinkling (22) a fluid on the curtain ( 10), characterized in that the curtain (10) comprises two walls (11) integral with one another along a lower end (11d) and vertical edges (11e) of said curtain, the means d spraying (22) of a fluid being adapted to spray by said fluid at least one inner face (11a) of a wall (11). Rideau conforme à la revendication 1, caractérisé en ce qu'au moins un des bords verticaux (11e) comprend à proximité de l'extrémité inférieure (11d) du rideau des moyens d'évacuation (12) du fluide issu des moyens d'arrosage (22), une paroi (26) de ladite construction adjacente au bord vertical (11e) comprenant des moyens de récupération (28) du fluide.Curtain according to claim 1, characterized in that at least one of the vertical edges (11e) comprises, near the lower end (11d) of the curtain, means for removing (12) the fluid from the spraying means (22), a wall (26) of said construction adjacent to the vertical edge (11e) comprising means (28) for recovering the fluid. Rideau conforme à l'une des revendications 1 ou 2, caractérisé en ce qu'au moins un des bords verticaux comprend un orifice (12) d'évacuation du fluide, disposé à une hauteur prédéterminée au-dessus de l'extrémité inférieure (11d) du rideau.Curtain according to one of claims 1 or 2, characterized in that at least one of the vertical edges comprises an orifice (12) for discharging the fluid, disposed at a predetermined height above the lower end (11d ) from the curtain. Rideau conforme à l'une des revendications 1 à 3, caractérisé en ce que les deux parois (11) sont reliées par des bandes (13) formant entretoises et de longueur égale.Curtain according to one of claims 1 to 3, characterized in that the two walls (11) are connected by strips (13) forming spacers and of equal length. Rideau conforme à la revendication 4, caractérisé en ce que les bandes (13) formant entretoises sont adaptées à se rompre sous une force de traction d'intensité sensiblement égale au poids d'une des deux parois (11).Curtain according to claim 4, characterized in that the bands (13) forming spacers are adapted to break under a tensile force of intensity substantially equal to the weight of one of the two walls (11). Rideau conforme à l'une des revendications 4 ou 5, caractérisé en ce que chaque bande (13) formant entretoise comporte une pièce de liaison adaptée à coulisser sur un câble ou ruban (15), ledit câble ou ruban (15) ayant une première extrémité (15a) fixée à l'extrémité inférieure (11d) du rideau et une seconde extrémité (15b) fixée à un enrouleur (23) solidaire de l'ossature supérieure (21) de ladite construction (20).Curtain according to one of claims 4 or 5, characterized in that each strip (13) forming a spacer comprises a connecting piece adapted to slide on a cable or ribbon (15), said cable or ribbon (15) having a first end (15a) fixed to the lower end (11d) of the curtain and a second end (15b) fixed to a reel (23) secured to the upper frame (21) of said construction (20). Rideau conforme à l'une des revendications 1 à 6, caractérisé en ce que les moyens d'arrosage (22) comprennent deux séries de buses (30) disposées sur l'ossature supérieure (21) de la construction (20) et adaptées à arroser une face intérieure (11a) respectivement de chaque paroi (11), 2 indépendamment l'une de l'autre.Curtain according to one of Claims 1 to 6, characterized in that the sprinkler means (22) comprise two series of nozzles (30) arranged on the upper framework (21) of the construction (20) and adapted to spray an inner face (11a) respectively of each wall (11), 2 independently of one another. Rideau conforme à la revendication 7, caractérisé en ce que les buses (30) de chaque série sont réparties uniformément le long de l'extrémité supérieure (11c) du rideau.Curtain according to claim 7, characterized in that the nozzles (30) of each series are distributed uniformly along the upper end (11c) of the curtain.
EP96402469A 1995-11-20 1996-11-18 Fire curtain Expired - Lifetime EP0774277B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9513730 1995-11-20
FR9513730A FR2741270B1 (en) 1995-11-20 1995-11-20 FIRE CURTAIN

Publications (2)

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EP0774277A1 true EP0774277A1 (en) 1997-05-21
EP0774277B1 EP0774277B1 (en) 2000-05-31

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EP96402469A Expired - Lifetime EP0774277B1 (en) 1995-11-20 1996-11-18 Fire curtain

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US (1) US5809699A (en)
EP (1) EP0774277B1 (en)
AT (1) ATE193457T1 (en)
DE (1) DE69608643D1 (en)
FR (1) FR2741270B1 (en)

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WO2008154906A1 (en) * 2007-06-21 2008-12-24 Stöbich Brandschutz GmbH Fire-resistant closure
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GB2327880B (en) * 1995-03-22 1999-08-25 Rasontec Nv Fire retardant curtain
FR2841143A1 (en) * 2002-06-07 2003-12-26 Stobich Brandschutz Gmbh & Co FIREWALL CLOSURE AND COMPOSITE WIRE USED FOR THE PRODUCTION THEREOF
WO2008154906A1 (en) * 2007-06-21 2008-12-24 Stöbich Brandschutz GmbH Fire-resistant closure
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EP2520337A1 (en) * 2007-06-21 2012-11-07 Stöbich Brandschutz GmbH Fire-retardant closure
WO2011124374A1 (en) * 2010-04-09 2011-10-13 Stöbich Brandschutz GmbH Fire-protection or smoke-protection device
WO2011124377A1 (en) * 2010-04-09 2011-10-13 Stöbich Brandschutz GmbH Fire-protection or smoke-protection device
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Also Published As

Publication number Publication date
FR2741270B1 (en) 1998-01-16
DE69608643D1 (en) 2000-07-06
FR2741270A1 (en) 1997-05-23
EP0774277B1 (en) 2000-05-31
US5809699A (en) 1998-09-22
ATE193457T1 (en) 2000-06-15

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