FR2721830A1 - Fire break shutter for ventilation duct - Google Patents

Fire break shutter for ventilation duct Download PDF

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Publication number
FR2721830A1
FR2721830A1 FR9408171A FR9408171A FR2721830A1 FR 2721830 A1 FR2721830 A1 FR 2721830A1 FR 9408171 A FR9408171 A FR 9408171A FR 9408171 A FR9408171 A FR 9408171A FR 2721830 A1 FR2721830 A1 FR 2721830A1
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FR
France
Prior art keywords
valve
seat
butterfly
sleeve
edges
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
FR9408171A
Other languages
French (fr)
Other versions
FR2721830B1 (en
Inventor
Pierre Constantin
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.)
VRACO SA
Original Assignee
VRACO SA
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Filing date
Publication date
Application filed by VRACO SA filed Critical VRACO SA
Priority to FR9408171A priority Critical patent/FR2721830B1/en
Publication of FR2721830A1 publication Critical patent/FR2721830A1/en
Application granted granted Critical
Publication of FR2721830B1 publication Critical patent/FR2721830B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Lift Valve (AREA)

Abstract

The shutter comprises a butterfly valve (1) which pivots about an axis (2) between the side members of a valve seat (4), with both the valve and seat having chamfered edges. The valve and seat are situated inside a housing (3) made from a refractory material, lined with a two-section metal sleeve (8,9) with sections on either side of the valve seat. The sleeve, of stainless steel, has a flange (9.1) which extends over the end of the housing, with the housing fastening bolts (5) passing through it.

Description

Clapet coupe-feu
Le clapet de l'invention comprend un papillon monté à pivotement sur un axe pour s'appliquer par ses chants sur les chants d'un siège de clapet, ces chants du papillon et du siège étant inclinés par rapport à la direction circulaire de pivotement du papillon, clapet caractérisé en ce que l'ensemble papillon et siège disposé à l'intérieur d'un manchon réalisé en matériau réfractaire est pourvu, sur sa face interne, d'un fourreau métallique, et en ce que ce fourreau métallique est réalisé en deux parties disposées de part et d'autre du siège du clapet.Fire damper
The valve of the invention comprises a butterfly pivotally mounted on an axis to be applied by its edges on the edges of a valve seat, these edges of the butterfly and the seat being inclined relative to the circular direction of pivoting of the butterfly, valve characterized in that the butterfly and seat assembly disposed inside a sleeve made of refractory material is provided, on its internal face, with a metal sheath, and in that this metal sheath is made in two parts arranged on either side of the valve seat.

Selon une autre caractéristique de l'invention, le manchon présente une bride de fixation à l'une de ses extrémités, l'une des parties du fourreau se prolongeant à la surface de cette bride. According to another characteristic of the invention, the sleeve has a fixing flange at one of its ends, one of the parts of the sleeve extending at the surface of this flange.

Selon une autre caractéristique de l'invention, la bride comporte des boulons pour la fixation du clapet, ces boulons traversant sans contact le prolongement du fourreau. According to another characteristic of the invention, the flange includes bolts for fixing the valve, these bolts crossing without contact the extension of the sleeve.

L'invention est représentée à titre d'exemple non limitatif sur les dessins ci-joints dans lesquels
- la figure 1 est une vue latérale partiellement arrachée d'un clapet conforme à l'invention,
- la figure 2 est une coupe suivant A-A de la figure 1. The invention is shown by way of non-limiting example in the accompanying drawings in which
FIG. 1 is a partially cut away side view of a valve according to the invention,
- Figure 2 is a section along AA of Figure 1.

La présente invention a en conséquence pour but la réalisation d'un clapet coupe-feu qui présente une rupture de pont thermique afin d'éviter tout transfert de calories du côté opposé au feu. The object of the present invention is therefore to produce a fire damper which has a thermal break in order to avoid any transfer of calories from the side opposite the fire.

Ce clapet est en outre réalisé de manière telle qu'il peut être monté sans autre intervention, à l'aide des boulons prévus à cet effet, sur un mur de protection, autour d'une ouverture d'aération communiquant avec ce clapet coupe-feu et cela sans détériorer la barrière coupe-feu que constitue le clapet. This valve is also made in such a way that it can be mounted without any other intervention, using the bolts provided for this purpose, on a protective wall, around a ventilation opening communicating with this cut-off valve. without damaging the fire barrier constituted by the valve.

Ce clapet comprend un papillon 1 monté pivotant par des portions d'axes 2 sur un manchon 3 réalisé en matériau réfractaire. This valve comprises a butterfly 1 pivotally mounted by portions of axes 2 on a sleeve 3 made of refractory material.

Dans l'exemple représenté, ce papillon 1 est de forme carrée et les portions d'axes 2 sont disposées au milieu de sa hauteur afin de réaliser un montage équilibré. In the example shown, this butterfly 1 is square in shape and the axis portions 2 are arranged in the middle of its height in order to produce a balanced assembly.

Les chants li de ce papillon sont inclinés en sens contraire, de part et d'autre des portions d'axes 2, par rapport à la direction circulaire F de pivotement de la périphérie du papillon. The edges li of this butterfly are inclined in opposite directions, on either side of the axis portions 2, with respect to the circular direction F of pivoting of the periphery of the butterfly.

Ce papillon vient, en position fermeture, s'appliquer sur les chants en regard, inclinés de façon correspondante, d'un siège de clapet 4 fixé par des vis 4 dans le manchon 3. Cette disposition assure lorsque le clapet est fermé, une étanchéité dite à portée sèche évitant l'utilisation de joints intumescents dont l'efficacité et la fiabilité sont réduites. This butterfly comes, in the closed position, to be applied to the facing edges, correspondingly inclined, of a valve seat 4 fixed by screws 4 in the sleeve 3. This arrangement ensures that when the valve is closed, a seal so-called dry range avoiding the use of intumescent seals whose efficiency and reliability are reduced.

Les portions d'axe 2, disposées au milieu de la hauteur du papillon 1, sont décalées, dans le sens de son épaisseur, vers le côté aval du clapet comme représenté sur la figure 2, de façon que ce décalage par rapport au centre de gravité, assure une fermeture positive naturelle du clapet. The axis portions 2, arranged in the middle of the height of the butterfly 1, are offset, in the direction of its thickness, towards the downstream side of the valve as shown in FIG. 2, so that this offset relative to the center of gravity, ensures a natural positive closure of the valve.

Le manchon en matériau réfractaire 3 est pourvu d'une bride de fixation 31 également en matériau réfrac taire par laquelle il vient se fixer à l'aide de boulons 5 autour de l'ouverture d'aération 6 d'un mur de protection 7. The sleeve of refractory material 3 is provided with a fixing flange 31 also of refractory material by which it is fixed by means of bolts 5 around the ventilation opening 6 of a protective wall 7.

Sur la face interne du manchon en matériau réfractaire 3 est prévu un fourreau métallique, de préférence en acier inoxydable, qui est réalisé en deux parties 8 et 9 disposées chacune de part et d'autre du siège 4 du clapet. On the internal face of the sleeve made of refractory material 3 is provided a metal sheath, preferably made of stainless steel, which is produced in two parts 8 and 9 each arranged on either side of the seat 4 of the valve.

Cette disposition permet de réaliser une rupture de pont thermique afin d'éviter tout transfert de calories du côté opposé du feu. This arrangement makes it possible to achieve a thermal break in order to avoid any transfer of calories to the opposite side of the fire.

La partie 9 du fourreau disposée du côté de la bride 31 se prolonge en 9l sur la face externe de la bride. The part 9 of the sleeve disposed on the side of the flange 31 extends at 9l on the external face of the flange.

Ce prolongement présente des ouvertures 92 de diamètre supérieur au diamètre des tiges de boulons 5 qu'elles reçoivent afin d'éviter tout contact entre les deux pièces métalliques et donc afin d'éviter toute propagation éventuelle de la chaleur vers l'extérieur.This extension has openings 92 with a diameter greater than the diameter of the bolt rods 5 which they receive in order to avoid any contact between the two metal parts and therefore in order to avoid any possible propagation of heat towards the outside.

Cette disposition permet également de réaliser, de manière simple, le montage du clapet coupe-feu contre une paroi pourvue d'une ouverture d'aération et cela sans autre intervention que la fixation de ce clapet au mur à l'aide des boulons 5.  This arrangement also makes it possible, in a simple manner, to assemble the fire damper against a wall provided with a ventilation opening, and this without any other intervention than the fixing of this damper to the wall using the bolts 5.

Claims (3)

REVENDICATIONS 1) Clapet coupe-feu comprenant un papillon (1) monté à pivotement sur un axe (2) pour s'appliquer par ses chants (1l) sur les chants (41) d'un siège de clapet, ces chants du papillon et du siège étant inclinés par rapport à la direction circulaire de pivotement du papillon, clapet caractérisé en ce que l'ensemble papillon et siège disposé à l'intérieur d'un manchon (3) réalisé en matériau réfractaire est pourvu, sur sa face interne, d'un fourreau métallique, et en ce que ce fourreau métallique est réalisé en deux parties (8, 9) disposées de part et d'autre du siège (4) du clapet. 1) Fire damper comprising a butterfly (1) pivotally mounted on an axis (2) to be applied by its edges (11) to the edges (41) of a valve seat, these edges of the butterfly and of the seat being inclined with respect to the circular direction of pivoting of the butterfly, valve characterized in that the butterfly and seat assembly disposed inside a sleeve (3) made of refractory material is provided, on its internal face, with 'a metal sheath, and in that this metal sheath is made in two parts (8, 9) arranged on either side of the seat (4) of the valve. 2) Clapet conforme à la revendication 1, caractérisé en ce que le manchon (3) présente une bride de fixation (31) à l'une de ses extrémités, l'une des parties (9) du fourreau se prolongeant à la surface de cette bride. 2) A valve according to claim 1, characterized in that the sleeve (3) has a fixing flange (31) at one of its ends, one of the parts (9) of the sleeve extending at the surface of this bridle. 3) Clapet conforme à la revendication 2, caractérisé en ce que la bride (31) comporte des boulons (5) pour la fixation du clapet, ces boulons traversant sans contact le prolongement (9l) du fourreau (9).  3) A valve according to claim 2, characterized in that the flange (31) comprises bolts (5) for fixing the valve, these bolts crossing without contact the extension (9l) of the sleeve (9).
FR9408171A 1994-07-01 1994-07-01  FIRE DAMPER Expired - Lifetime FR2721830B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9408171A FR2721830B1 (en) 1994-07-01 1994-07-01  FIRE DAMPER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9408171A FR2721830B1 (en) 1994-07-01 1994-07-01  FIRE DAMPER

Publications (2)

Publication Number Publication Date
FR2721830A1 true FR2721830A1 (en) 1996-01-05
FR2721830B1 FR2721830B1 (en) 1996-08-23

Family

ID=9464924

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9408171A Expired - Lifetime FR2721830B1 (en) 1994-07-01 1994-07-01  FIRE DAMPER

Country Status (1)

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FR (1) FR2721830B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1506796A1 (en) * 2003-08-14 2005-02-16 Gebrüder Trox, GmbH Fire damper
EP2239015A1 (en) * 2009-04-09 2010-10-13 Vraco SAS Fire valve
GB2582823A (en) * 2019-04-05 2020-10-07 Bsb Engineering Services Ltd Fire damper

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2622147A1 (en) * 1976-05-19 1977-12-01 Schako Metallwarenfabrik Air duct fire damper - has adjustable sealing strip clamped between two part flanged frame
DE2708109A1 (en) * 1977-02-25 1978-08-31 Schako Metallwarenfabrik Fire barrier flap for ventilating duct - has swivel mounting in frame forming closed duct outside with strips as seals set in frame recesses
DE3441971A1 (en) * 1984-11-16 1986-05-22 Sanbloc GmbH Installations-Fertigbau, 8120 Weilheim Fire-protection apparatus
EP0595729A1 (en) * 1992-10-29 1994-05-04 France Air S.A. Thermic retarder for a ventilating device for fire-protection

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2622147A1 (en) * 1976-05-19 1977-12-01 Schako Metallwarenfabrik Air duct fire damper - has adjustable sealing strip clamped between two part flanged frame
DE2708109A1 (en) * 1977-02-25 1978-08-31 Schako Metallwarenfabrik Fire barrier flap for ventilating duct - has swivel mounting in frame forming closed duct outside with strips as seals set in frame recesses
DE3441971A1 (en) * 1984-11-16 1986-05-22 Sanbloc GmbH Installations-Fertigbau, 8120 Weilheim Fire-protection apparatus
EP0595729A1 (en) * 1992-10-29 1994-05-04 France Air S.A. Thermic retarder for a ventilating device for fire-protection

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1506796A1 (en) * 2003-08-14 2005-02-16 Gebrüder Trox, GmbH Fire damper
EP2239015A1 (en) * 2009-04-09 2010-10-13 Vraco SAS Fire valve
WO2010116065A1 (en) * 2009-04-09 2010-10-14 Vraco Sas Fire valve
FR2944212A1 (en) * 2009-04-09 2010-10-15 Vraco Sas FIRE DAMPER
CN102369043A (en) * 2009-04-09 2012-03-07 维拉可公司 Fire valve
CN102369043B (en) * 2009-04-09 2014-01-08 维拉可公司 Fire valve
US9433810B2 (en) 2009-04-09 2016-09-06 Vraco Sas Fire valve
GB2582823A (en) * 2019-04-05 2020-10-07 Bsb Engineering Services Ltd Fire damper
GB2582823B (en) * 2019-04-05 2022-08-31 Bsb Engineering Services Ltd Fire damper

Also Published As

Publication number Publication date
FR2721830B1 (en) 1996-08-23

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