EP1960060B1 - Obturateur coupe-feu - Google Patents

Obturateur coupe-feu Download PDF

Info

Publication number
EP1960060B1
EP1960060B1 EP06820051A EP06820051A EP1960060B1 EP 1960060 B1 EP1960060 B1 EP 1960060B1 EP 06820051 A EP06820051 A EP 06820051A EP 06820051 A EP06820051 A EP 06820051A EP 1960060 B1 EP1960060 B1 EP 1960060B1
Authority
EP
European Patent Office
Prior art keywords
blade
seal
intumescent
fire
damper blade
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.)
Not-in-force
Application number
EP06820051A
Other languages
German (de)
English (en)
Other versions
EP1960060A4 (fr
EP1960060A1 (fr
Inventor
Esa Lampinen
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.)
Flaekt Woods AB
Original Assignee
Flaekt Woods AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Flaekt Woods AB filed Critical Flaekt Woods AB
Publication of EP1960060A1 publication Critical patent/EP1960060A1/fr
Publication of EP1960060A4 publication Critical patent/EP1960060A4/fr
Application granted granted Critical
Publication of EP1960060B1 publication Critical patent/EP1960060B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/065—Physical fire-barriers having as the main closure device materials, whose characteristics undergo an irreversible change under high temperatures, e.g. intumescent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1406—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by sealing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
    • F24F11/35—Responding to malfunctions or emergencies to fire, excessive heat or smoke by closing air passages

Definitions

  • the present invention relates generally to a fire damper blade of a circular shape and having a seal adapted about its perimeter for sealing the damper blade under normal operating conditions and the blade further having adapted about its perimeter an outer rim seal of intumescent seal material for establishing a leakproof seal under a fire condition, whereby the intumescent seal material is protected by a refractory seal material placed over the intumescent seal material so as to substantially cover the entire perimeter of the damper blade.
  • the invention more particularly relates to a fire damper of a circular cross section enclosing a blade of circular shape.
  • the function of a fire damper is such that under normal conditions the blade is either in an open or a closed position as desired.
  • the perimeter of the blade has attached thereto, e.g., a conventional rubber seal that provides a leakproof seal between the blade and the inner surface of the damper duct sleeve element under normal conditions when the blade is driven into its closed position.
  • the fire damper blade according to the invention is characterized in that the refractory material is a flexible band of silica fiber.
  • the swelling of the intumescent material forces the refractory material into a sealing contact between the blade and the damper body.
  • a preferred embodiment of the fire damper blade according to the invention is characterized in that the refractory material is in the shape of a hollow-core sleeving having the intumescent seal material adapted to fill the core or, alternatively, in the shape of a dual-layer band, whereby the intumescent seal material is placed between the layers.
  • Another preferred embodiment of the fire damper blade according to the invention is characterized in that the refractory material is at least partially affixed to the perimeter of the damper blade.
  • the features of the invention include that the refractory material enclosing the intumescent seal material prevents the latter from disintegrating and keeps it in place under fire. Hence, the intumescent material gives an extended protective life compared with prior-art embodiments.
  • One additional benefit is that need of the expensive intumescent material is minimized.
  • the invention relates to a fire damper of a circular cross section mounted in a hole made through a wall 1.
  • the fire damper typically comprises an air duct sleeve element 2 extending through the thickness of wall 1 and a fire barrier flange 3 surrounding the duct sleeve element so as to face the wall.
  • About the fire barrier flange is adapted a tightening band 4.
  • a circular damper blade 5 shown entirely and partially in FIGS. 3-6 .
  • the blade is rotatably pivoted (not shown) such that it can assume a fully closed position, wherein airflow through the duct sleeve element is blocked, or, conversely, a fully open position wherein the blade is rotated by 90° from the closed position.
  • the blade may be situated in any intermediate position between these two end positions as required by local conditions.
  • FIG. 4 shows the edge of a damper blade 5 according to the invention in a sectional view.
  • Reference numeral 6 denotes a so-called moderate temperature seal that may be an O-ring seal made of a silicon polymer or rubber. The function of this seal is to seal the blade 5 tightly against the inner surface of the duct sleeve element 2 under normal circumstances when the damper blade is in its closed position.
  • O-ring seal other seal constructions may be contemplated.
  • an intumescent seal 7 Over this seal is placed a band 8 of refractory material, made of flexible silica fiber, for instance.
  • the blade of the fire damper must close immediately if it has not precedently been in its closed position.
  • the blade closure occurs automatically in a fashion known in the art, for instance, with the help of a spring triggered at the melting of a fusible link.
  • the seal 6 intended for service under moderate temperature conditions burns off under fire.
  • the intumescent seal material 7 begins to swell thus closing the gap between the inner surface of the air duct sleeve element and the blade even before the conventional moderate temperature seal 6 has disintegrated under heat.
  • the fire damper stays leakproof under all circumstances.
  • the basic concept of the present invention relates to the protection of the intumescent seal by means of a refractory material 8 substantially over the entire perimeter of the damper blade 5 thus substantially increasing the time over which the intumescent seal stays in place and extending the leakproofness of the blade under high temperature and pressure.
  • the refractory material 8 is a silica fiber band.
  • the refractory material element may have the shape of, for instance, a band as shown in the diagrams or a hollow-core braid, whereby the intumescent seal 7 is placed in the hollow core.
  • the refractory silica fiber band 8 may have a double-layer structure, whereby the layers are adapted to cover both sides of the intumescent seal.
  • the band 8 is at least partially attached to the damper blade. As is evident from the diagrams, in the above-discussed embodiments the band 8 is secured by its "lower" edge about the perimeter of the damper blade.
  • the intumescent seal and the refractory material protecting the same are mounted on the inner wall of the air duct sleeve element, where they can sealingly expand against the blade under a fire situation.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Fluid-Damping Devices (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Building Environments (AREA)
  • Gasket Seals (AREA)
  • Confectionery (AREA)
  • Inorganic Insulating Materials (AREA)
  • Table Devices Or Equipment (AREA)
  • Fluid-Driven Valves (AREA)
  • Safety Valves (AREA)

Claims (3)

  1. Clapet coupe-feu (5) de forme circulaire et comportant sur son périmètre un joint d'étanchéité (6) apte à réaliser l'étanchéité du clapet coupe-feu dans des conditions de fonctionnement normales, le clapet comportant par ailleurs sur son périmètre un bord d'étanchéité extérieur en matériau de joint intumescent (7) pour former un joint étanche en cas d'incendie, étant précisé que le matériau de joint intumescent (7) est protégé par un matériau de joint réfractaire (8) placé sur lui de manière à couvrir quasiment tout le périmètre du clapet coupe-feu (5), caractérisé en ce que le matériau réfractaire (8) est une bande flexible en fibre de silice.
  2. Clapet coupe-feu de la revendication 1, caractérisé en ce que le matériau réfractaire (8) a la forme d'une gaine creuse comportant le matériau de joint intumescent (7) apte à remplir la gaine ou, à titre de variante, a la forme d'une bande bicouche, étant précisé que le matériau de joint intumescent (7) est placé entre les couches.
  3. Clapet coupe-feu de la revendication 1 ou 2, caractérisé en ce que le matériau réfractaire (8) est au moins partiellement fixé au périmètre du coupe-feu (5).
EP06820051A 2005-12-13 2006-11-14 Obturateur coupe-feu Not-in-force EP1960060B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20051277A FI118457B (fi) 2005-12-13 2005-12-13 Palopellin sulkuläppä
PCT/FI2006/000370 WO2007068786A1 (fr) 2005-12-13 2006-11-14 Obturateur coupe-feu

Publications (3)

Publication Number Publication Date
EP1960060A1 EP1960060A1 (fr) 2008-08-27
EP1960060A4 EP1960060A4 (fr) 2009-12-30
EP1960060B1 true EP1960060B1 (fr) 2011-08-03

Family

ID=35510644

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06820051A Not-in-force EP1960060B1 (fr) 2005-12-13 2006-11-14 Obturateur coupe-feu

Country Status (6)

Country Link
EP (1) EP1960060B1 (fr)
AT (1) ATE518568T1 (fr)
DK (1) DK1960060T3 (fr)
FI (1) FI118457B (fr)
NO (1) NO338823B1 (fr)
WO (1) WO2007068786A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0717018D0 (en) * 2007-08-01 2007-10-10 Ruskin Air Man Ltd A damper
FI123298B (fi) * 2008-02-08 2013-02-15 Halton Oy Palon- ja savunrajoitin
PL215653B1 (pl) * 2009-03-17 2014-01-31 Ciat Spolka Z Ograniczona Odpowiedzialnoscia Uszczelnienie przegrody odcinajacej klapy o przekroju prostokatnym
BE1018315A5 (nl) 2009-04-06 2010-08-03 Rf Technologies Nv Brandwerende ventilatieklep.
FR2967178B1 (fr) * 2010-11-09 2013-06-07 Rf Technologies Volet de desenfumage a portillon
EP2741022A1 (fr) * 2012-12-04 2014-06-11 Rf-Technologies nv Amortisseur d'évacuation de fumée comprenant une pièce de matériau intumescent
EP2778554A1 (fr) * 2013-03-11 2014-09-17 TROX GmbH Clapet de fermeture destiné à être utilisé dans une conduite d'une installation de ventilation ou d'une installation de désenfumage mécanique
EP2823862B1 (fr) 2013-07-10 2016-10-12 Ekovent Ab Ensemble amortisseur pour système de ventilation
EP3101363B1 (fr) * 2015-06-01 2019-11-13 TROX GmbH Clapet de fermeture destiné à être utilisé dans un canal d'une installation de ventilation ou d'une installation de désenfumage mécanique
DE202016105288U1 (de) 2016-09-22 2018-01-09 Trox Gmbh Jalousieklappe für den Einsatz in einer Leitung einer klima- und raumlufttechnischen Anlage oder einer maschinellen Entrauchungsanlage
EP3984602B1 (fr) 2020-10-19 2023-11-08 Ekovent Ab Amortisseur d'incendie pour système de ventilation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT313068B (de) * 1970-06-20 1974-01-25 Trox Ges Mit Beschraenkter Geb Sperrvorrichtung für Brandabschnitte in Lüftungs- und Klimaanlagen
DE4008686A1 (de) * 1990-03-17 1991-09-19 Schako Metallwarenfabrik Brandschutzklappe
FI89333C (fi) * 1991-08-23 1993-09-27 Halton Oy Brandbegraensare och foerfarande foer laosning av tillslutningsorganet av brandbegraensaren
DE29905167U1 (de) 1999-03-20 1999-06-02 Gebrüder Trox, GmbH, 47506 Neukirchen-Vluyn Brandschutzklappe

Also Published As

Publication number Publication date
NO338823B1 (no) 2016-10-24
EP1960060A4 (fr) 2009-12-30
NO20082968L (no) 2008-07-04
EP1960060A1 (fr) 2008-08-27
FI118457B (fi) 2007-11-30
FI20051277A (fi) 2007-06-14
DK1960060T3 (da) 2011-10-31
WO2007068786A1 (fr) 2007-06-21
FI20051277A0 (fi) 2005-12-13
ATE518568T1 (de) 2011-08-15

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