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EP2239015B1 - Fire valve - Google Patents

Fire valve Download PDF

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Publication number
EP2239015B1
EP2239015B1 EP10305285.8A EP10305285A EP2239015B1 EP 2239015 B1 EP2239015 B1 EP 2239015B1 EP 10305285 A EP10305285 A EP 10305285A EP 2239015 B1 EP2239015 B1 EP 2239015B1
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EP
European Patent Office
Prior art keywords
tunnel
plate
plates
assembly
frame
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Active
Application number
EP10305285.8A
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German (de)
French (fr)
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EP2239015A1 (en
Inventor
Jean-Baptiste Willoquet
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VRACO Sas
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VRACO Sas
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Publication date
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Publication of EP2239015A1 publication Critical patent/EP2239015A1/en
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Publication of EP2239015B1 publication Critical patent/EP2239015B1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/12—Hinged dampers

Definitions

  • the present invention relates to a fire damper formed of a body consisting of a frame and a tunnel in which a butterfly damper is pivotally mounted about an axis between a closed position restoring the degree of fire of a wall or a slab and an open position called waiting.
  • FR 94 08171 discloses document D1 which discloses a fire damper formed of a body consisting of a frame and a tunnel in which is mounted a pivoting butterfly register about an axis between a closed position separating the inner side of the outside and an open smoke extraction position.
  • the body and the butterfly register are formed of cut refractory plates.
  • the valve has a sealing seat in a sleeve in two parts 8, 9, inner, stainless steel.
  • This two-part sleeve receives a refractory sleeve 3.
  • the seat 4 formed of a lower part and an upper part with inclined surfaces 4 1 .
  • the present invention aims to develop a fire damper to ensure for a very long time, the effective separation between the room to protect and the outside while using simple means and a non prohibitive cost.
  • the present invention relates to a fire damper of the type defined above according to the first claim.
  • the refractory plates are silico-calcareous plates.
  • the tunnel is formed of walls composed of several layers of refractory plates arranged on edge, and the tunnel is mounted on the frame formed by the combination of flat plates, glued, and the frame carries a belt of L-section applies a branch is fixed flat on the outside, the frame and the other branch surrounds the tunnel, the valve being fixed around the opening to be protected by bolts bearing on the applique belt.
  • This allows the body of the valve, that is to say the tunnel and its frame by the assembly of cut plates giving the assembly a laminated structure more resistant than the realization of plates of a single thickness. In addition, this facilitates assembly between the tunnel and the frame.
  • the tunnel comprises, on the outside, a U-shaped folded steel outer frame fixed to plates carried by the outer wall of the tunnel, the outer frame having leg-shaped extensions accommodating in openings. plates.
  • the butterfly damper is in the form of a blade composed of the assembly of refractory plates.
  • the assembly carrying two axis elements housed in tunnel bearings, the two faces of the blade are reinforced by perpendicular angles. to the pivot axis, and the two faces of the blade are reinforced at the pivot axis by two strips taking the plates of the sandwich blade being attached to the axis elements by bolts passing through part of the assembly formed by the first band, the plates, the axis element and the second band.
  • This embodiment of the throttle damper offers the advantages of a thermal break while having sufficient strength to withstand the pressure difference applied between the two faces of the valve.
  • the angles reinforcing the two faces of the blade of the butterfly damper are mounted by means of screws in oblong holes of the angles on the faces of the blade to allow their free expansion and at the position of the With the ends of the angles, the butterfly damper being closed, the inside of the tunnel is provided with bolt plates receiving the ends of the angles when the angles are extended by the expansion caused by a rise in temperature.
  • This embodiment effectively secures the throttle damper to the body of the valve, in the closed position, that is to say in the active position, without motorized mechanism to ensure this locking in the closed position since the locking is achieved by the expansion of the angles which necessarily occurs, at least on the side subjected to fire.
  • the inside of the tunnel is provided on the inside of the valve, with a high seat and on the outer side, with a low seat against which the butterfly damper blade abuts in the closed position, these stops being supplemented by half-seats left and right, up and down.
  • one of the axis elements is connected to an actuator fixed on a bearing.
  • an axle washer made of silico-calcareous material is installed on the register on each of the axis elements 220, 222 to receive, in a groove , the thickness of the shutter and be pushed towards the inner wall of the tunnel by compression springs housed in the shutter.
  • the throttle valve is in the form of a blade composed of the assembly of refractory plates, the assembly carrying two axis elements) housed in the bearings of the tunnel, the bearings are each formed by a plate provided with a ferrule coaxial with the axis of the register, to come to bear against the outer face of the tunnel, the ferrule being housed in a chamber of the tunnel and the shell receives a graphite ring retained by a seal ring, the together being externally capped by a flat gasket covered by a closure plate or by the housing of the actuator.
  • the belt of application is formed of angles section L mechanically interleaved at the corners to allow their free expansion
  • the invention relates to a fire damper formed of a body 100 consisting of a frame 50 and a tunnel 10 in which is mounted a butterfly damper 200.
  • the butterfly damper 200 is carried by two axis elements around a pivot axis (xx) generally horizontal when the valve is installed.
  • the valve is controlled by an actuator 300 which ensures its closing movement; it is combined with a reset lever 301 and, if appropriate, with a closing security 302 enabling the shutter to be closed in the event of detection of an excessive rise in temperature, at the level of the valve, and independently of a signal sent by the control unit to the actuator 300.
  • a manual control 303 makes it possible to perform closure tests.
  • the reset is done by the lever 301.
  • the butterfly valve 200 of the valve is actuated by the return torque of a spring or equivalent element of the actuator 300. This restoring torque is released by the actuator 300, the safety device 302 or the manual control 303.
  • the body 100 and the throttle damper 200 are made by assemblies of plates of refractory material, in particular sand-lime plates composed of a mixture of silica and calcium carbonate, which has the advantage of being refractory. These plates are cut and glued to each other by a glue also refractory; the body 100 of the valve and its butterfly damper 200 are provided with flat or folded steel plate reinforcements, located on the outer side for the body 100 and on both sides of the butterfly damper 200.
  • the inner side (I) will be the side of the valve exposed to heat and the outer side (E) the one located on the other side of the valve, the side which must be separated in a sealed manner by the valve cut -fire compared to the inner side.
  • the body of the valve 100 is composed of the tunnel 10 and the frame 50.
  • the peripheral wall of the tunnel 10, defining a rectangular or square opening (OV), is formed by the assembly of silico-calcareous plates 11, glued flat the to each other, for example two layers of plates 11.
  • the tunnel 10 is carried by the frame 50 also composed of cut silico-calcareous plates 51, glued to each other flat and also glued on the inner edge 12 of the tunnel 10.
  • the frame 50 is intended to be applied against the wall P bordering the opening OV to be closed by the fire damper.
  • the assembly of the tunnel 10 and the frame 50 is reinforced by an applique belt 60 consisting of the assembly of four L-shaped section brackets 61, a branch 62 of which is fixed flat against the frame 50 and the other branch 63 is pressed against the outside face of the tunnel 10.
  • the branch 62 applied against the frame 50 is fixed thereto by holding screws 65, which penetrate only slightly in the thickness of the plates 51 of the frame , without crossing it.
  • Bolting holes 52 and holes 64 are provided in the frame 50 and in the applicator belt 60 to bolt the body 100 of the valve to threaded rods carried by the wall P. These rods are not shown.
  • the waistband 60 is composed of four angles 61 which meet at the corners 66 (one of the zones is surrounded by a circle) without being secured to each other so as to allow the free play of expansion of these four angles 61 under the effect of a rise in temperature, to maintain the sealed fire damper for the time fixed by the regulations.
  • the outer edge 13 of the tunnel 10 is bordered by an outer frame 70 made of steel, formed of a U-shaped sheet metal profile whose branch 71 is applied against the edge 13 of the tunnel and the other branch 72 is free.
  • the assembly between the outer frame 70 and the tunnel 10 is via tabs 73 carried by the branch 71 of the frame. These lugs 73 project outwardly from the outline of the frame 70 to freely engage in the direction of expansion, in oblong openings 76 made in plates 75 connected by screws 77 against the outer wall of the tunnel 10.
  • the throttle damper 200 is formed of a blade 210 composed of silico-calcareous plates 211. This blade 210 or more generally the butterfly damper 200 is pivotally mounted around the geometric axis (xx) contained in the plane of the figure 1 and perpendicular to that of the figure 2 .
  • the blade 210 carries two axis elements 220, 221 housed in bearings 230, 231 fixed to the tunnel 10 forming the frame of the butterfly damper 200,
  • the axis element 221 cooperates with the actuator 300 fixed on the side of the tunnel being connected by interlocking and connection by the shape,
  • the outer face and the inner face of the blade 210 are reinforced by angles L-shaped section 240, fixed by a branch 241 flat against each of the two faces of the blade 210.
  • This fixing is by interposition on each side a strip 249 aligned along the pivot axis (xx).
  • the extra thickness caused by the strip 249 is compensated at the two other fastening points 243, 244 of each reinforcing angle 240 by a washer 245 of identical thickness to that of the strips 249 ( figure 3 ).
  • each bracket 240 is fixed to the blade 210 by a screw 246 through an oblong hole 247 and also the washer 245 forming the shim.
  • the assembly of the blade 210 of the butterfly damper and its axis elements 220, 221 is made by means of bolts 260 passing through the strips 249, the thickness of a plate 211, the axis element 220 , 221 to retrace the other plate 211 and the other strip 249. Some bolts 260 also cross the two brackets 240 on either side of the blade 210.
  • the ends of the branches 242 of the brackets 240 perpendicular to the surface of the plate 210, have nozzles 248 intended to cooperate with latches 270, 271 carried by the tunnel 10 at a location opposite the nozzles 248 when the throttle register 200 is in closed position.
  • the lock 270 is a steel plate screwed by screws 272 against the inner surface of the tunnel 10.
  • the other latch 271 is a folded sheet metal part, screwed by screws 273 directly against the inner surface of the tunnel 10 and the portion folded to the square of the latch 271 is screwed by screws 274 with the interposition of a low seat / 280, 281 for the upper edge and the lower edge of the blade 210,
  • the seats 280, 281 are supplemented by half seats, left, right, up and down 282, 283.
  • the noses 248 of the brackets 240 are spaced apart from the distance (e) of the locks (270, 271) which allows the passage of the nose and the pivoting movement of the blade 210.
  • dilation elongates brackets 240 whose noses 248 engage one behind locks 270 and the others in openings 275 locks 271 which not only prohibits the tilting of the blade 210 in the direction of opening but also relieves the axis elements 220, 221 and their bearings 230, 231 of the thrust exerted on the blade 210 by the pressure difference between the inner side (I) and the outer side (E).
  • the up and down locking at the level of the locks 271 in fact ensures a blocking of the plates 211 of the blade 210 and strengthens their resistance to effort.
  • the bearings 230, 231 being of identical structure except that the bearing 231 opens into the actuator 300 and also carries the lever 301, the detailed description of the common parts between the two bearings will be made only for the bearing 230.
  • the same references designate the same components of the two bearings.
  • the axis element 220 passes through a bore 14 of the first plate 11 of the tunnel 10 to open into the recess 15 formed by the second plate 11 of this tunnel.
  • the bearing 230 is composed of a plate 250 fixed against the outer side of the tunnel 10 integral with a ferrule 251 housed in the recess 15.
  • the end 222 of the shaft member 220 is provided with a ring 252. graphite housed in the ferrule 251 and retained by a steel seal ring 253, forced into the ferrule 251 and bearing on the end 222 by an O-ring 254.
  • the end 222 is covered by a plug of support 255.
  • a flat gasket 256 covers the entire plate 250 of the bearing 230 and the assembly is covered by a closure plate 257 which, in the case of the bearing 231 is replaced by the actuator 300.
  • an axle washer 258 made of a silico-limestone material is traversed by the axle element 220.
  • the washer 298 has a groove 258-1 (seen in section on FIG. figure 5 ) in which is embedded the thickness of the blade shutter 210.
  • This shaft washer 258 is pushed towards the inner wall of the tunnel 10 by two compression springs 259 locked in the shutter 210, which avoids a gap that can generate a leak between the two faces of the shutter 210 while allowing its free rotation.
  • the ring 252 whose function is to guide the axis elements 220 and 221 is in graphite. This material was chosen for its self-lubricating qualities and its excellent resistance to high temperature.
  • the ring-seal ring 252 and the flat gasket 256 covering the whole outer face of the bearing 30 make it possible to seal between the inside of the tunnel 10 and the outside.
  • the bearing 231 differs from the bearing 230 by the end 224 of the pin element 221 in the form of a square, locked in rotation by a connection by the shape in the orifice of an arm 304 driven by the actuator and secured. the rotary sleeve 305 exiting the housing 306 of the actuator and carrying the operating lever 301.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Lift Valve (AREA)
  • Air-Flow Control Members (AREA)

Description

Domaine de l'inventionField of the invention

La présente invention concerne un clapet coupe-feu formé d'un corps composé d'un cadre et d'un tunnel dans lequel un registre papillon est monté pivotant autour d'un axe entre une position fermée restituant le degré coupe feu d'un mur ou d'une dalle et une position ouverte dite d'attente.The present invention relates to a fire damper formed of a body consisting of a frame and a tunnel in which a butterfly damper is pivotally mounted about an axis between a closed position restoring the degree of fire of a wall or a slab and an open position called waiting.

Etat de la techniqueState of the art

Il existe de multiples formes de clapets coupe-feu de réalisation en générale complexe pour pouvoir résister aux températures et aux différences de pression imposées par certaines réglementations. La complexité des clapets existants est rendue nécessaire par leur structure même qui transmet l'élévation de température dans l'enceinte à isoler de l'extérieur et en provoquant des dilatations, et déformations réduisant l'étanchéité du clapet en position fermée.There are many forms of fire dampers of generally complex construction to withstand the temperatures and pressure differences imposed by certain regulations. The complexity of the existing valves is made necessary by their very structure which transmits the temperature rise in the enclosure to be isolated from the outside and causing dilations and deformations reducing the sealing of the valve in the closed position.

Selon l'état de la technique FR 94 08171 , on connaît le document D1 qui décrit un clapet coupe-feu formé d'un corps composé d'un cadre et d'un tunnel dans lequel est monté un registre papillon pivotant autour d'un axe entre une position fermée séparant le côté intérieur du côté extérieur et une position ouverte de désenfumage. Le corps et le registre papillon sont formés de plaques réfractaires découpées.According to the state of the art FR 94 08171 discloses document D1 which discloses a fire damper formed of a body consisting of a frame and a tunnel in which is mounted a pivoting butterfly register about an axis between a closed position separating the inner side of the outside and an open smoke extraction position. The body and the butterfly register are formed of cut refractory plates.

Le clapet a un siège d'étanchéité dans un fourreau en deux parties 8, 9, intérieures, en acier inoxydable. Ce fourreau en deux parties reçoit un manchon réfractaire 3. Entre les deux parties 8, 9 du fourreau, il y a le siège 4 formé d'une partie basse et d'une partie haute avec des surfaces inclinées 41.The valve has a sealing seat in a sleeve in two parts 8, 9, inner, stainless steel. This two-part sleeve receives a refractory sleeve 3. Between the two parts 8, 9 of the sheath, there is the seat 4 formed of a lower part and an upper part with inclined surfaces 4 1 .

Ces sièges reçoivent les chants 11 du registre papillon 1 pivotant autour de l'axe 2. La réalisation de ce clapet est relativement complexe car en position fermée, les chants inclinés 11 du registre 1 doivent être en appui étanche, donc sur toute leur surface contre les chants inclinés 41 des deux parties haute et basse du siège 4. En position fermée, le registre est bloqué entre les deux parties du siège 4 de sorte que les effets de dilatation sont ainsi directement induits dans le plan du registre et sa mise en compression entre les deux chants inclinés 41 des contacts registre-siège. La dilatation de la matière réfractaire peut produire l'éclatement du manchon 3 dont la partie haute et la partie basse au droit du siège sont ainsi fortement sollicitées en flexion. Or, les plaques formant le manchon sont faiblement résistantes en flexion et éclateront de sorte que l'étanchéité que doit réaliser le clapet coupe-feu sera de courte durée.These seats receive the edges 1 1 of the butterfly damper 1 pivoting about the axis 2. The realization of this valve is relatively complex because in the closed position, the inclined edges 1 1 of the register 1 must be in tight support, so over their entire length. surface against the inclined edges 4 1 of the two upper and lower parts of the seat 4. In the closed position, the register is locked between the two parts of the seat 4 so that the effects of expansion are thus directly induced in the plane of the register and its compression between the two inclined edges 4 1 registry-seat contacts. The expansion of the refractory material can produce the bursting of the sleeve 3, the upper part and the lower part to the right of the seat are thus strongly stressed in bending. However, the plates forming the sleeve are weakly resistant in bending and burst so that the tightness that the fire damper must achieve will be short.

But de l'inventionPurpose of the invention

La présente invention a pour but de développer un clapet coupe-feu permettant d'assurer pendant une durée très longue, la séparation efficace entre le local à protéger et l'extérieur tout en utilisant des moyens simples et d'un coût non prohibitif.The present invention aims to develop a fire damper to ensure for a very long time, the effective separation between the room to protect and the outside while using simple means and a non prohibitive cost.

Exposé et avantages de l'inventionDescription and advantages of the invention

A cet effet, la présente invention concerne un clapet coupe-feu du type défini ci-dessus selon la première revendication. For this purpose, the present invention relates to a fire damper of the type defined above according to the first claim.

Malgré l'absence de liaison métallique directe entre le côté intérieur et le côté extérieur séparés par les parties fixes et mobiles du clapet, celui-ci résiste efficacement à la différence de pression qui doit lui être imposée.Despite the absence of direct metal connection between the inner side and the outer side separated by the fixed and movable parts of the valve, it effectively withstands the pressure difference that must be imposed.

Cette structure du clapet coupe-feu ne complique ni sa fabrication ni son installation ni encore son actionneur.This structure of the fire damper complicates neither its manufacture nor its installation nor its actuator.

Suivant une caractéristique avantageuse, les plaques réfractaires sont des plaques silico-calcaires.According to an advantageous characteristic, the refractory plates are silico-calcareous plates.

Suivant une autre caractéristique avantageuse, le tunnel est formé de parois composées de plusieurs couches de plaques réfractaires disposées sur chant, et le tunnel est monté sur le cadre formé par la combinaison de plaques à plat, collées, et le cadre porte une ceinture d'applique à section en L dont une branche est fixée à plat, côté extérieur, au cadre et l'autre branche entoure le tunnel, le clapet étant fixé autour de l'ouverture à protéger par l'intermédiaire de boulons prenant appui sur la ceinture d'applique. Cela permet de réaliser le corps du clapet, c'est-à-dire le tunnel et son cadre par l'assemblage de plaques découpées donnant à l'ensemble une structure stratifiée plus résistante que la réalisation en plaques d'une seule épaisseur. De plus, cela facilite l'assemblage entre le tunnel et le cadre.According to another advantageous characteristic, the tunnel is formed of walls composed of several layers of refractory plates arranged on edge, and the tunnel is mounted on the frame formed by the combination of flat plates, glued, and the frame carries a belt of L-section applies a branch is fixed flat on the outside, the frame and the other branch surrounds the tunnel, the valve being fixed around the opening to be protected by bolts bearing on the applique belt. This allows the body of the valve, that is to say the tunnel and its frame by the assembly of cut plates giving the assembly a laminated structure more resistant than the realization of plates of a single thickness. In addition, this facilitates assembly between the tunnel and the frame.

Suivant une autre caractéristique avantageuse, le tunnel comporte côté extérieur, un cadre extérieur en acier plié en forme de U, fixé à des plaques portées par la paroi extérieure du tunnel, le cadre extérieur ayant des prolongements en forme de pattes se logeant dans des ouvertures des plaques. Cette réalisation permet de désolidariser les parties dilatables des parties à faible coefficient de dilatation, c'est-à-dire des parties du clapet réalisées en plaques réfractaires, notamment en plaques silico-calcaires.According to another advantageous characteristic, the tunnel comprises, on the outside, a U-shaped folded steel outer frame fixed to plates carried by the outer wall of the tunnel, the outer frame having leg-shaped extensions accommodating in openings. plates. This embodiment makes it possible to separate the expandable parts from the parts with a low coefficient of expansion, that is to say parts of the valve made of refractory plates, in particular sand-lime plates.

Suivant une autre caractéristique avantageuse, le registre papillon est en forme de lame composée de l'assemblage de plaques réfractaires l'assemblage portant deux éléments d'axe logés dans des paliers du tunnel, les deux faces de la lame sont renforcées par des cornières perpendiculaires à l'axe de pivotement, et les deux faces de la lame sont renforcées au niveau de l'axe de pivotement par deux bandeaux prenant les plaques de la lame en sandwich en étant fixés aux éléments d'axes par des boulons traversant de part en part l'ensemble formé par le premier bandeau, les plaques, l'élément d'axe et le second bandeau. Cette réalisation du registre papillon offre les avantages d'une coupure thermique tout en présentant la résistance suffisante pour tenir à la différence de pression appliquée entre les deux faces du clapet.According to another advantageous characteristic, the butterfly damper is in the form of a blade composed of the assembly of refractory plates. The assembly carrying two axis elements housed in tunnel bearings, the two faces of the blade are reinforced by perpendicular angles. to the pivot axis, and the two faces of the blade are reinforced at the pivot axis by two strips taking the plates of the sandwich blade being attached to the axis elements by bolts passing through part of the assembly formed by the first band, the plates, the axis element and the second band. This embodiment of the throttle damper offers the advantages of a thermal break while having sufficient strength to withstand the pressure difference applied between the two faces of the valve.

Suivant une caractéristique particulièrement avantageuse, les cornières renforçant les deux faces de la lame du registre papillon sont montées par l'intermédiaire de vis dans des trous oblongs des cornières sur les faces de la lame pour permettre leur libre dilatation et au niveau de la position des extrémités des cornières, le registre papillon étant fermé, l'intérieur du tunnel est muni de plaques de verrou recevant l'extrémité des cornières lorsque les cornières sont allongées par la dilatation provoquée par une élévation de température. Cette réalisation solidarise efficacement le registre papillon au corps du clapet, en position de fermeture, c'est-à-dire en position active, sans mécanisme motorisé pour assurer ce verrouillage en position de fermeture puisque le verrouillage est réalisé par la dilatation des cornières qui se produit nécessairement, au moins du côté soumis au feu.According to a particularly advantageous characteristic, the angles reinforcing the two faces of the blade of the butterfly damper are mounted by means of screws in oblong holes of the angles on the faces of the blade to allow their free expansion and at the position of the With the ends of the angles, the butterfly damper being closed, the inside of the tunnel is provided with bolt plates receiving the ends of the angles when the angles are extended by the expansion caused by a rise in temperature. This embodiment effectively secures the throttle damper to the body of the valve, in the closed position, that is to say in the active position, without motorized mechanism to ensure this locking in the closed position since the locking is achieved by the expansion of the angles which necessarily occurs, at least on the side subjected to fire.

Suivant une autre caractéristique avantageuse, l'intérieur du tunnel est muni côté intérieur du clapet, d'un siège haut et côté extérieur, d'un siège bas contre lesquels vient buter la lame du registre papillon en position fermée, ces butées étant complétées par des demi-sièges gauche et droit, haut et bas. Ces appuis simples à réaliser assurent à la fois l'isolation thermique en évitant la création de ponts thermiques et le renforcement de la position de fermeture du clapet.According to another advantageous characteristic, the inside of the tunnel is provided on the inside of the valve, with a high seat and on the outer side, with a low seat against which the butterfly damper blade abuts in the closed position, these stops being supplemented by half-seats left and right, up and down. These supports simple to achieve ensure both thermal insulation avoiding the creation of thermal bridges and strengthening the closed position of the valve.

Suivant une autre caractéristique avantageuse, l'un des éléments d'axe est relié à un actionneur fixé sur un palier.According to another advantageous characteristic, one of the axis elements is connected to an actuator fixed on a bearing.

Pour assurer l'étanchéité entre la paroi du tunnel et la lame de l'obturateur 210, une rondelle d'axe en matériau silico-calcaire est installée sur le registre sur chacun des éléments d'axe 220, 222 pour recevoir, dans une rainure, l'épaisseur de l'obturateur et être repoussée vers la paroi intérieure du tunnel par des ressorts de compression logés dans l'obturateur.To ensure the seal between the tunnel wall and the shutter blade 210, an axle washer made of silico-calcareous material is installed on the register on each of the axis elements 220, 222 to receive, in a groove , the thickness of the shutter and be pushed towards the inner wall of the tunnel by compression springs housed in the shutter.

Suivant une autre caractéristique avantageuse, le registre papillon est en forme de lame composée de l'assemblage de plaques réfractaires, l'assemblage portant deux éléments d'axe) logés dans les paliers du tunnel, les paliers sont formés chacun par une plaque munie d'une virole coaxiale à l'axe du registre, pour venir s'appuyer contre la face extérieure du tunnel, la virole étant logée dans un chambrage du tunnel et la virole reçoit une bague en graphite retenue par une bague porte-joint, l'ensemble étant coiffé extérieurement par un joint plat couvert par une plaque de fermeture ou par le boîtier de l'actionneur.According to another advantageous characteristic, the throttle valve is in the form of a blade composed of the assembly of refractory plates, the assembly carrying two axis elements) housed in the bearings of the tunnel, the bearings are each formed by a plate provided with a ferrule coaxial with the axis of the register, to come to bear against the outer face of the tunnel, the ferrule being housed in a chamber of the tunnel and the shell receives a graphite ring retained by a seal ring, the together being externally capped by a flat gasket covered by a closure plate or by the housing of the actuator.

Suivant une autre caractéristique avantageuse, la ceinture d'applique est formée de cornières à section en L imbriquées mécaniquement au niveau des coins pour permettre leur libre dilatation,According to another advantageous characteristic, the belt of application is formed of angles section L mechanically interleaved at the corners to allow their free expansion,

Dessinsdrawings

La présente invention sera décrite ci-après de manière plus détaillée à l'aide d'un mode de réalisation d'un clapet coupe-feu représenté dans les dessins annexés dans lesquels :

  • la figure 1 est une vue en plan côté extérieur du clapet coupe-feu selon l'invention,
  • la figure 2 est une vue en coupe selon le plan II-II de la figure 1,
  • la figure 3 est une vue à échelle agrandie de la vue en coupe de la figure 2,
  • la figure 4 montre les deux paliers du registre selon une vue en coupe axiale et
  • la figure 5 est une vue en coupe à échelle agrandie d'un palier du registre papillon (celui ne portant pas l'actionneur).
The present invention will be described below in more detail with the aid of an embodiment of a fire damper shown in the accompanying drawings in which:
  • the figure 1 is a plan view on the outside of the fire damper according to the invention,
  • the figure 2 is a sectional view according to plane II-II of the figure 1 ,
  • the figure 3 is an enlarged view of the sectional view of the figure 2 ,
  • the figure 4 shows the two bearings of the register according to a view in axial section and
  • the figure 5 is a sectional view on an enlarged scale of a bearing of the butterfly damper (the one not carrying the actuator).

Description d'un mode de réalisation de l'inventionDescription of an embodiment of the invention

Selon les figures 1 et 2, l'invention concerne un clapet coupe-feu formé d'un corps 100 composé d'un cadre 50 et d'un tunnel 10 dans lequel est monté un registre papillon 200. Le registre papillon 200 est porté par deux éléments d'axe autour d'un axe de pivotement (xx) généralement horizontal lorsque le clapet est installé. Le clapet est commandé par un actionneur 300 qui assure son mouvement de fermeture ; il est combiné à un levier de réarmement 301 et le cas échéant à une sécurité de fermeture 302 permettant la fermeture du clapet en cas de détection d'une élévation de température excessive, au niveau du clapet, et indépendamment d'un signal envoyé par la centrale de commande vers l'actionneur 300. Une commande manuelle 303 permet de faire des essais de fermeture, Le réarmement se fait par le levier 301.According to figures 1 and 2 the invention relates to a fire damper formed of a body 100 consisting of a frame 50 and a tunnel 10 in which is mounted a butterfly damper 200. The butterfly damper 200 is carried by two axis elements around a pivot axis (xx) generally horizontal when the valve is installed. The valve is controlled by an actuator 300 which ensures its closing movement; it is combined with a reset lever 301 and, if appropriate, with a closing security 302 enabling the shutter to be closed in the event of detection of an excessive rise in temperature, at the level of the valve, and independently of a signal sent by the control unit to the actuator 300. A manual control 303 makes it possible to perform closure tests. The reset is done by the lever 301.

Le registre papillon 200 du clapet est actionné par le couple de rappel d'un ressort ou élément équivalent de l'actionneur 300. Ce couple de rappel est libéré par l'actionneur 300, le dispositif de sécurité 302 ou la commande manuelle 303.The butterfly valve 200 of the valve is actuated by the return torque of a spring or equivalent element of the actuator 300. This restoring torque is released by the actuator 300, the safety device 302 or the manual control 303.

Selon la figure 2, le corps 100 et le registre papillon 200 sont réalisés par des assemblages de plaques en matière réfractaire, notamment des plaques silico-calcaires composées d'un mélange de silice et de carbonate de calcium, qui a l'avantage d'être réfractaire. Ces plaques sont découpées et collées les unes aux autres par une colle également réfractaire ; le corps 100 du clapet et son registre papillon 200 sont munis de renforts en tôle d'acier, plats ou pliés, situés du côté extérieur pour le corps 100 et sur les deux faces du registre papillon 200.According to figure 2 , the body 100 and the throttle damper 200 are made by assemblies of plates of refractory material, in particular sand-lime plates composed of a mixture of silica and calcium carbonate, which has the advantage of being refractory. These plates are cut and glued to each other by a glue also refractory; the body 100 of the valve and its butterfly damper 200 are provided with flat or folded steel plate reinforcements, located on the outer side for the body 100 and on both sides of the butterfly damper 200.

Par convention dans la description, le côté intérieur (I) sera le côté du clapet exposé à la chaleur et le côté extérieur (E) celui situé de l'autre côté du clapet, côté qui doit être séparé de manière étanche par le clapet coupe-feu par rapport au coté intérieur.By convention in the description, the inner side (I) will be the side of the valve exposed to heat and the outer side (E) the one located on the other side of the valve, the side which must be separated in a sealed manner by the valve cut -fire compared to the inner side.

De façon plus détaillée selon les figures 1 et 2, le corps du clapet 100 est composé du tunnel 10 et du cadre 50. La paroi périphérique du tunnel 10, délimitant une ouverture rectangulaire ou carrée (OV), est formée par l'assemblage de plaques silico-calcaires 11, collées à plat les unes aux autres, par exemple deux couches de plaques 11. Le tunnel 10 est porté par le cadre 50 également composé de plaques silico-calcaires 51 découpées, collées les unes aux autres à plat et aussi collées sur le chant intérieur 12 du tunnel 10. Le cadre 50 est destiné à être appliqué contre la paroi P bordant l'ouverture OV à fermer par le clapet coupe-feu.In more detail according to figures 1 and 2 , the body of the valve 100 is composed of the tunnel 10 and the frame 50. The peripheral wall of the tunnel 10, defining a rectangular or square opening (OV), is formed by the assembly of silico-calcareous plates 11, glued flat the to each other, for example two layers of plates 11. The tunnel 10 is carried by the frame 50 also composed of cut silico-calcareous plates 51, glued to each other flat and also glued on the inner edge 12 of the tunnel 10. The frame 50 is intended to be applied against the wall P bordering the opening OV to be closed by the fire damper.

L'assemblage du tunnel 10 et du cadre 50 est renforcé par une ceinture d'applique 60 constituée par l'assemblage de quatre cornières 61 à section en forme de L dont une branche 62 est fixée à plat contre le cadre d'applique 50 et l'autre branche 63 est pressée contre la face extérieure du tunnel 10. La branche 62 appliquée contre le cadre 50 est fixée à celui-ci par des vis de maintien 65, qui ne pénètrent que légèrement dans l'épaisseur des plaques 51 du cadre, sans le traverser.The assembly of the tunnel 10 and the frame 50 is reinforced by an applique belt 60 consisting of the assembly of four L-shaped section brackets 61, a branch 62 of which is fixed flat against the frame 50 and the other branch 63 is pressed against the outside face of the tunnel 10. The branch 62 applied against the frame 50 is fixed thereto by holding screws 65, which penetrate only slightly in the thickness of the plates 51 of the frame , without crossing it.

Des orifices 52 et des perçages 64 de boulonnage sont prévus dans le cadre 50 et dans la ceinture d'applique 60 pour boulonner le corps 100 du clapet sur des tiges filetées portées par la paroi P. Ces tiges ne sont pas représentées.Bolting holes 52 and holes 64 are provided in the frame 50 and in the applicator belt 60 to bolt the body 100 of the valve to threaded rods carried by the wall P. These rods are not shown.

Comme le montre la figure 1, la ceinture d'applique 60 est composée de quatre cornières 61 qui se réunissent aux coins 66 (l'une des zones est entourée d'un cercle) sans être solidarisées les unes aux autres de façon à permettre le libre jeu de dilatation de ces quatre cornières 61 sous l'effet d'une élévation de température, pour maintenir le clapet coupe-feu étanche pendant la durée fixée par la réglementation.As shown in figure 1 , the waistband 60 is composed of four angles 61 which meet at the corners 66 (one of the zones is surrounded by a circle) without being secured to each other so as to allow the free play of expansion of these four angles 61 under the effect of a rise in temperature, to maintain the sealed fire damper for the time fixed by the regulations.

Selon les figures 2 et 3, le chant extérieur 13 du tunnel 10 est bordé par un cadre extérieur 70 en acier, formé d'un profilé en tôle pliée en U dont une branche 71 est appliquée contre le chant 13 du tunnel et l'autre branche 72 est libre.According to figures 2 and 3 , the outer edge 13 of the tunnel 10 is bordered by an outer frame 70 made of steel, formed of a U-shaped sheet metal profile whose branch 71 is applied against the edge 13 of the tunnel and the other branch 72 is free.

L'assemblage entre le cadre extérieur 70 et le tunnel 10 se fait par l'intermédiaire de pattes 73 portées par la branche 71 du cadre. Ces pattes 73 viennent en saillie vers l'extérieur du contour du cadre 70 pour s'engager librement dans le sens de la dilatation, dans des ouvertures oblongues 76 réalisées dans des plaques 75 reliées par des vis 77 contre la paroi extérieure du tunnel 10.The assembly between the outer frame 70 and the tunnel 10 is via tabs 73 carried by the branch 71 of the frame. These lugs 73 project outwardly from the outline of the frame 70 to freely engage in the direction of expansion, in oblong openings 76 made in plates 75 connected by screws 77 against the outer wall of the tunnel 10.

Le registre papillon 200 est formé d'une lame 210 composée de plaques silico-calcaires 211. Cette lame 210 ou plus généralement le registre papillon 200 est monté pivotant autour de l'axe géométrique (xx) contenu dans le plan de la figure 1 et perpendiculaire à celui de la figure 2.The throttle damper 200 is formed of a blade 210 composed of silico-calcareous plates 211. This blade 210 or more generally the butterfly damper 200 is pivotally mounted around the geometric axis (xx) contained in the plane of the figure 1 and perpendicular to that of the figure 2 .

Suivant l'axe géométrique (xx), la lame 210 porte deux élé ments d'axe 220, 221 logés dans des paliers 230, 231 fixés au tunnel 10 formant l'encadrement du registre papillon 200,According to the geometric axis (xx), the blade 210 carries two axis elements 220, 221 housed in bearings 230, 231 fixed to the tunnel 10 forming the frame of the butterfly damper 200,

L'élément d'axe 221 coopère avec l'actionneur 300 fixé sur le côté du tunnel en étant relié par emboîtement et liaison par la forme,The axis element 221 cooperates with the actuator 300 fixed on the side of the tunnel being connected by interlocking and connection by the shape,

La face extérieure et la face intérieure de la lame 210 sont renforcées par des cornières 240 à section en forme de L, fixées par une branche 241 à plat contre chacune des deux faces de la lame 210. Cette fixation se fait par interposition sur chaque face d'un bandeau 249 aligné suivant l'axe de pivotement (xx). La surépaisseur occasionnée par le bandeau 249 est compensée aux deux autres points de fixation 243, 244 de chaque cornière de renforcement 240 par une rondelle 245 d'épaisseur identique à celle des bandeaux 249 (figure 3). En outre au niveau des deux points de fixation 243, 244, chaque cornière 240 est fixée à la lame 210 par une vis 246 traversant un trou oblong 247 et aussi la rondelle 245 formant la cale d'épaisseur.The outer face and the inner face of the blade 210 are reinforced by angles L-shaped section 240, fixed by a branch 241 flat against each of the two faces of the blade 210. This fixing is by interposition on each side a strip 249 aligned along the pivot axis (xx). The extra thickness caused by the strip 249 is compensated at the two other fastening points 243, 244 of each reinforcing angle 240 by a washer 245 of identical thickness to that of the strips 249 ( figure 3 ). In addition at the two attachment points 243, 244, each bracket 240 is fixed to the blade 210 by a screw 246 through an oblong hole 247 and also the washer 245 forming the shim.

L'assemblage de la lame 210 du registre papillon et de ses éléments d'axe 220, 221 se fait par l'intermédiaire de boulons 260 traversant les bandeaux 249, l'épaisseur d'une plaque 211, l'élément d'axe 220, 221 pour retraverser l'autre plaque 211 et l'autre bandeau 249. Certains boulons 260 traversent également les deux cornières 240 de part et d'autre de la lame 210.The assembly of the blade 210 of the butterfly damper and its axis elements 220, 221 is made by means of bolts 260 passing through the strips 249, the thickness of a plate 211, the axis element 220 , 221 to retrace the other plate 211 and the other strip 249. Some bolts 260 also cross the two brackets 240 on either side of the blade 210.

Selon la vue des figures 2 et 3, les extrémités des branches 242 des cornières 240, perpendiculaires à la surface de la plaque 210, ont des becs 248 destinés à coopérer avec des verrous 270, 271 portés par le tunnel 10 à un endroit en regard des becs 248 lorsque le registre papillon 200 est en position fermée.According to the view of figures 2 and 3 , the ends of the branches 242 of the brackets 240, perpendicular to the surface of the plate 210, have nozzles 248 intended to cooperate with latches 270, 271 carried by the tunnel 10 at a location opposite the nozzles 248 when the throttle register 200 is in closed position.

Le verrou 270 est une plaque d'acier vissée par des vis 272 contre la surface intérieure du tunnel 10.The lock 270 is a steel plate screwed by screws 272 against the inner surface of the tunnel 10.

L'autre verrou 271 est une pièce de tôle pliée, vissé par des vis 273 directement contre la surface intérieure du tunnel 10 et la partie repliée à l'équerre du verrou 271 est vissée par des vis 274 avec interposition d'un siège bas/haut 280, 281 pour le bord supérieur et le bord inférieur de la lame 210,The other latch 271 is a folded sheet metal part, screwed by screws 273 directly against the inner surface of the tunnel 10 and the portion folded to the square of the latch 271 is screwed by screws 274 with the interposition of a low seat / 280, 281 for the upper edge and the lower edge of the blade 210,

Les sièges 280, 281 sont complétés par des demi-sièges, gauche, droit, haut et bas 282, 283.The seats 280, 281 are supplemented by half seats, left, right, up and down 282, 283.

En position fermée et à température ambiante, les nez 248 des cornières 240 sont écartés de la distance (e) des verrous (270, 271) ce qui permet le passage des nez et le mouvement de pivotement de la lame 210. Mais sous l'effet de la chaleur, la dilatation allonge les cornières 240 dont les nez 248 viennent s'engager les uns derrière les verrous 270 et les autres dans des ouvertures 275 des verrous 271 ce qui non seulement interdit le basculement de la lame 210 dans le sens de l'ouverture mais soulage également les éléments d'axes 220, 221 et leurs paliers 230, 231 de la poussée exercée sur la lame 210 par la différence de pression entre le côté intérieur (I) et le côté extérieur (E). Le verrouillage haut et bas au niveau des verrous 271 assure en fait un blocage des plaques 211 de la lame 210 et renforce leur tenue à l'effort.In the closed position and at room temperature, the noses 248 of the brackets 240 are spaced apart from the distance (e) of the locks (270, 271) which allows the passage of the nose and the pivoting movement of the blade 210. But under the effect of heat, dilation elongates brackets 240 whose noses 248 engage one behind locks 270 and the others in openings 275 locks 271 which not only prohibits the tilting of the blade 210 in the direction of opening but also relieves the axis elements 220, 221 and their bearings 230, 231 of the thrust exerted on the blade 210 by the pressure difference between the inner side (I) and the outer side (E). The up and down locking at the level of the locks 271 in fact ensures a blocking of the plates 211 of the blade 210 and strengthens their resistance to effort.

Selon les figures 4 et 5, les paliers 230, 231 étant de structure identique sauf que le palier 231 débouche dans l'actionneur 300 et porte aussi le levier 301, la description détaillée des parties communes entre les deux paliers sera seulement faite pour le palier 230. Les mêmes références désignent les mêmes composants des deux paliers.According to figures 4 and 5 , the bearings 230, 231 being of identical structure except that the bearing 231 opens into the actuator 300 and also carries the lever 301, the detailed description of the common parts between the two bearings will be made only for the bearing 230. The same references designate the same components of the two bearings.

Ainsi, l'élément d'axe 220 traverse un perçage 14 de la première plaque 11 du tunnel 10 pour déboucher dans le chambrage 15 formé par la deuxième plaque 11 de ce tunnel. Le palier 230 est composé d'une plaque 250 fixée contre le côté extérieur du tunnel 10 solidaire d'une virole 251 logée dans le chambrage 15. L'extrémité 222 de l'élément d'axe 220 est muni d'une bague 252 en graphite logée dans la virole 251 et retenue par une bague porte-joint 253, en acier, enfoncée de force dans la virole 251 et s'appuyant sur l'extrémité 222 par un joint torique 254. L'extrémité 222 est couverte par un bouchon d'appui 255.Thus, the axis element 220 passes through a bore 14 of the first plate 11 of the tunnel 10 to open into the recess 15 formed by the second plate 11 of this tunnel. The bearing 230 is composed of a plate 250 fixed against the outer side of the tunnel 10 integral with a ferrule 251 housed in the recess 15. The end 222 of the shaft member 220 is provided with a ring 252. graphite housed in the ferrule 251 and retained by a steel seal ring 253, forced into the ferrule 251 and bearing on the end 222 by an O-ring 254. The end 222 is covered by a plug of support 255.

Un joint plat 256 couvre toute la plaque 250 du palier 230 et l'ensemble, est couvert par une plaque de fermeture 257 qui, dans le cas du palier 231 est remplacée par l'actionneur 300.A flat gasket 256 covers the entire plate 250 of the bearing 230 and the assembly is covered by a closure plate 257 which, in the case of the bearing 231 is replaced by the actuator 300.

A l'intérieur du tunnel 10, une rondelle d'axe 258 en un matériau silico-calcaire est traversée par l'élément d'axe 220. La rondelle 298 comporte une rainure 258-1 (vue en coupe à la figure 5) dans laquelle vient s'encastrer l'épaisseur de la lame de l'obturateur 210.Inside the tunnel 10, an axle washer 258 made of a silico-limestone material is traversed by the axle element 220. The washer 298 has a groove 258-1 (seen in section on FIG. figure 5 ) in which is embedded the thickness of the blade shutter 210.

Cette rondelle d'axe 258 est repoussée vers la paroi intérieure du tunnel 10 par deux ressorts de compression 259logés dans l'obturateur 210, ce qui évite un interstice pouvant générer une fuite entre les deux faces de l'obturateur 210 tout en permettant sa libre rotation.This shaft washer 258 is pushed towards the inner wall of the tunnel 10 by two compression springs 259 locked in the shutter 210, which avoids a gap that can generate a leak between the two faces of the shutter 210 while allowing its free rotation.

La bague 252 dont la fonction est d'assurer le guidage des éléments d'axes 220 et 221 est en graphite. Ce matériau a été choisi pour ses qualités autolubrifiantes et son excellente tenue a température élevée.The ring 252 whose function is to guide the axis elements 220 and 221 is in graphite. This material was chosen for its self-lubricating qualities and its excellent resistance to high temperature.

La bague porte joint-torique 252 et le joint plat 256 couvrant toute la face extérieure du palier 30 permettent d'assurer l'étanchéité entre l'intérieur du tunnel 10 et l'extérieur.The ring-seal ring 252 and the flat gasket 256 covering the whole outer face of the bearing 30 make it possible to seal between the inside of the tunnel 10 and the outside.

Le palier 231 diffère du palier 230 par l'extrémité 224 de l'élément d'axe 221 en forme de carré, bloqué en rotation par une liaison par la forme dans l'orifice d'un bras 304 entrainé par l'actionneur et solidaire du manchon rotatif 305 sortant du boîtier 306 de l'actionneur et portant le levier de manoeuvre 301.The bearing 231 differs from the bearing 230 by the end 224 of the pin element 221 in the form of a square, locked in rotation by a connection by the shape in the orifice of an arm 304 driven by the actuator and secured. the rotary sleeve 305 exiting the housing 306 of the actuator and carrying the operating lever 301.

NOMENCLATURENOMENCLATURE

1010
TunnelTunnel
1111
Plaque du tunnelTunnel plate
1212
Chant intérieur du tunnelSinging inside the tunnel
1313
Chant extérieur du tunnelChant outside the tunnel
1414
Perçagedrilling
1515
Chambragechambering
5050
CadreFrame
5151
Plaques du cadreFrame plates
5252
Orificesports
6060
Ceinture d'appliqueApplique belt
6161
Cornière de la ceinture d'appui 60Corner of the support belt 60
6262
Branche de la cornière 61Branch of the angle 61
6363
Branche d'une cornière 61Branch of an angle 61
6464
Orificesports
6565
VisScrew
6666
Coins de la ceinture d'appliqueCorners of the waistband
7070
Cadre extérieurOutside frame
71, 7271, 72
Branches du cadre 70Branches of the frame 70
7373
PattePaw
7575
PlaquePlate
7676
Ouverture oblongueOblong opening
7777
Vis de fixation de la plaque 75Screw fixing the plate 75
100100
Corps du clapetBody of the valve
200200
Registre papillonButterfly register
210210
LameBlade
211211
Plaques composant la lame 210Plates making up the blade 210
220, 221220, 221
Eléments d'axeAxis elements
222222
ExtrémitéEnd
230, 231230, 231
Paliersbearings
240240
Cornièreangle
241, 242241, 242
Branches de la cornièreBranches of the angle
243, 244243, 244
Points de fixation de la cornièreCorner fixing points
245245
Rondelle formant cale d'épaisseurWasher forming a wedge
246246
VisScrew
247247
Trou oblongOblong hole
248248
Bec de la cornièreBeak of the angle
249249
Bandeaubandeau
250250
Plaque du palier 230, 231Bearing plate 230, 231
251251
ViroleFerrule
252252
BagueRing
253253
Bague porte-jointSeal ring
254254
Joint toriqueO-ring
255255
Bouchon d'appuiSupport stopper
256256
Joint platFlat gasket
257257
Plaque de fermetureClosing plate
258258
Rondelle d'axeShaft washer
258-1258-1
RainureGroove
259259
RessortSpring
260260
Boulonsbolts
270270
VerrouLock
271271
VerrouLock
272, 273272, 273
Vis de fixation des verrousLocking bolts
274274
Vis de fixation des verrousLocking bolts
275275
Ouvertures dans le verrou 271Openings in the lock 271
280, 281280, 281
Sièges bas/hautLow / high seats
282, 283282, 283
Demi-sièges gauche, droit, haut et basHalf-seats left, right, up and down
300300
Actionneuractuator
301301
Levier de réarmementRearming lever
302302
Sécurité de fermetureClosing security
303303
Commande manuelleManual command
304304
BrasArms
305305
ManchonMuff
306306
BoîtierHousing
xxxx
Axe de pivotementPivot axis
ee
Ecartdifference
EE
Côté extérieurOutside side
II
Côté intérieurInterior side
OVOV
Ouverture dans la paroiOpening in the wall
PP
ParoiWall

Claims (10)

  1. Fire valve formed by a body which is composed of a frame and a tunnel in which a butterfly damper is mounted pivotably about an axis (xx) between a closed position which separates an inner side (I) from an outer side (E) and an open smoke extraction position,
    - the body (100) and the butterfly damper (200) formed by a plate (210) each being produced by means of an assembly of refractory plates (11, 51, 211) which are cut and adhesively bonded, the assembly (11, 51) forming the body (100) and the plate (211) of the butterfly damper (200) being provided with steel reinforcements which are fixed directly to the plate assemblies, the reinforcements (60, 70) of the body (100) being fixed at the outer side of the assemblies of the tunnel (10) and the frame (50) and the reinforcements (240, 249) in the form of angled members of the butterfly damper (200) on the two faces of the plate (210), and
    - the inner side of the tunnel (10) being
    provided at the inner side of the valve with an upper seat (281) and at the outer side with a lower seat (280) against which the plate (210) of the butterfly damper abuts in a closed position, these stops being supplemented by upper and lower left and right half-seats (282, 283), and the lower/upper seats (280, 281) for the upper edge and the lower edge of the plate (210) which form supports for thermally insulating and reinforcing the closure position are interposed between the inner surface of the tunnel (10) and a sheet metal component (271) which is screwed by means of screws (274) against the inner surface of the tunnel (10) and
    - the two faces of the plate (210) being reinforced by means of angled members (240) perpendicular to the pivot axis (xx).
  2. Fire valve according to claim 1,
    characterised in that
    the refractory plates are silicocalcareous plates.
  3. Fire valve according to claim 1,
    characterised in that
    - the tunnel (10) is formed by walls which are composed of several layers of refractory plates (11) which are arranged on edge, and the tunnel (10) is mounted on the frame (50) formed by the combination of flat adhesively-bonded plates (51), and
    - the frame (50) carries an application belt (60) which has an L-shaped cross-section, of which one branch (62) is fixed flat, at the outer side, to the frame (50) and the other branch (63) surrounds the tunnel (10), the valve being fixed around the opening which is intended to be protected by means of bolts which abut the application belt (60).
  4. Fire valve according to claim 2,
    characterised in that
    - the tunnel (10) comprises an outer side, an outer frame (70) of steel which is folded in the form of a U and which is fixed to plates (75) which are carried by the outer wall of the tunnel (10).
    - the outer frame (70) having extensions in the form of lugs (73) which are accommodated in openings (76) of the plates (75).
  5. Fire valve according to claim 1,
    characterised in that
    - the butterfly damper (200) is in the form of a plate (210) which is composed of the assembly of refractory plates (211), the assembly carrying two axis elements (200, 221) which are accommodated in bearings (230, 231) of the tunnel (10), and
    - the two faces of the plate (210) are reinforced in the region of the pivot axis (xx) by means of two bands (249) which sandwich the plates (211) of the plate (210) and which are fixed to the axis elements (220, 221) by means of bolts (260) which extend through from one side to the other of the assembly formed by the first band (249), the plates (211), the axis element (220, 221) and the second band (249).
  6. Fire break according to claim 5,
    characterised in that
    - the angled members (240) which reinforce the two faces of the plate (210) of the butterfly damper are mounted by means of screws (246) in oblong holes (247) of the angled members on the faces of the plate (210) in order to allow them to expand freely, and,
    - in the region of the position of the ends of the angled members (240), the butterfly damper being closed, the inner side of the tunnel (10) is provided with locking plates (270, 271) which receive the end (248) of the angled members when the angled members (240) are extended by the expansion brought about by a raising of the temperature and bringing about the locking of the butterfly damper (210).
  7. Fire break according to claim 1,
    characterised in that
    one of the elements of the axis (221) is connected to an actuator (300) which is fixed to the bearing (231).
  8. Fire break according to claim 1,
    characterised in that
    the application belt (60) is formed by angled members (61) having an L-shaped cross-section which are imbricated mechanically in the region of the angled members in order to enable them to expand freely.
  9. Fire break according to claim 1,
    characterised in that
    an axle washer (258) of silicocalcareous material installed on the damper (200), on each axle element (220, 221) between the plate of the shutter (210) and the wall of the tunnel, receiving in a groove (258-1), the thickness of the shutter (210), this washer which is pushed towards the inner wall of the tunnel (10) by compression springs (259) accommodated in the shutter (210) enables the assembly to pivot without leaving any play which is harmful for the sealing.
  10. Fire break according to claim 1,
    characterised in that
    the butterfly damper (200) is in the form of a plate (210) which is composed of the assembly of refractory plates (211), the assembly carrying two axle elements (220, 221) which are accommodated in bearings (230, 231) of the tunnel (10), the bearings (230, 231) are each formed by a plate (250) which is provided with a ferrule (251) which is coaxial with the axis (xx) of the damper, in order to be in abutment against the outer face of the tunnel (10) the ferrule (251) being accommodated in a countersinking (15) of the tunnel (10), and the ferrule (251) receives a graphite ring (252) which is retained by a seal carrier ring (253), the assembly being covered externally by a flat seal (256) which is covered by a closure plate (257) or by the casing (306) of the actuator (300).
EP10305285.8A 2009-04-09 2010-03-23 Fire valve Active EP2239015B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0952318A FR2944212B1 (en) 2009-04-09 2009-04-09 FIRE DAMPER

Publications (2)

Publication Number Publication Date
EP2239015A1 EP2239015A1 (en) 2010-10-13
EP2239015B1 true EP2239015B1 (en) 2019-05-01

Family

ID=41198583

Family Applications (2)

Application Number Title Priority Date Filing Date
EP10715963A Withdrawn EP2416851A1 (en) 2009-04-09 2010-03-23 Fire valve
EP10305285.8A Active EP2239015B1 (en) 2009-04-09 2010-03-23 Fire valve

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP10715963A Withdrawn EP2416851A1 (en) 2009-04-09 2010-03-23 Fire valve

Country Status (6)

Country Link
US (1) US9433810B2 (en)
EP (2) EP2416851A1 (en)
CN (1) CN102369043B (en)
FR (1) FR2944212B1 (en)
HU (1) HUE047338T2 (en)
WO (1) WO2010116065A1 (en)

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FR3018891B1 (en) * 2014-03-19 2016-06-24 Concepts Et Dev En Prot Incendie FIRE STOPPERS AND SHUTTERS
CN104455519B (en) * 2014-09-26 2017-03-08 南京圣诺热管有限公司 A kind of slide valve and its processing method
EP4591948A1 (en) 2024-01-25 2025-07-30 Soletanche Freyssinet Fire-retardant valve with interlock

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US20120108162A1 (en) 2012-05-03
US9433810B2 (en) 2016-09-06
FR2944212B1 (en) 2012-03-23
CN102369043A (en) 2012-03-07
HUE047338T2 (en) 2020-04-28
WO2010116065A1 (en) 2010-10-14
CN102369043B (en) 2014-01-08
EP2239015A1 (en) 2010-10-13
EP2416851A1 (en) 2012-02-15
FR2944212A1 (en) 2010-10-15

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