EP2446931A1 - Brandschutzbelüftungsvorrichtung - Google Patents

Brandschutzbelüftungsvorrichtung Download PDF

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Publication number
EP2446931A1
EP2446931A1 EP10188812A EP10188812A EP2446931A1 EP 2446931 A1 EP2446931 A1 EP 2446931A1 EP 10188812 A EP10188812 A EP 10188812A EP 10188812 A EP10188812 A EP 10188812A EP 2446931 A1 EP2446931 A1 EP 2446931A1
Authority
EP
European Patent Office
Prior art keywords
ventilation device
ventilation
fire
ventilation duct
fire damping
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
EP10188812A
Other languages
English (en)
French (fr)
Other versions
EP2446931B8 (de
EP2446931B1 (de
Inventor
Elmar Maurits Raymonde Agnes Jacques Delbaere
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.)
Renson Ventilation NV
Original Assignee
Aralco Natural Ventilation Systems NV
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 Aralco Natural Ventilation Systems NV filed Critical Aralco Natural Ventilation Systems NV
Priority to EP10188812.1A priority Critical patent/EP2446931B8/de
Publication of EP2446931A1 publication Critical patent/EP2446931A1/de
Application granted granted Critical
Publication of EP2446931B1 publication Critical patent/EP2446931B1/de
Publication of EP2446931B8 publication Critical patent/EP2446931B8/de
Active 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
    • A62C2/065—Physical fire-barriers having as the main closure device materials, whose characteristics undergo an irreversible change under high temperatures, e.g. intumescent
    • 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

  • This invention relates to a fire damping ventilation device, comprising a ventilation duct for air passage and comprising intumescent material which is installed in the ventilation duct such that it is able to close off the ventilation duct after expansion.
  • fire damping ventilation devices for e.g. installing on top of a glass pane and inside a window frame, are produced by mainly providing a fire resistant louver system in front of an existing ventilation device.
  • a fire resistant louver system slats comprising intumescent material are installed in the ventilation duct.
  • intumescent material has a relatively high density at room temperature and expands when temperature exceeds a threshold value, such that it obtains a relatively low density.
  • the intumescent material of the slats of such louver system will expand such that it is able to close off the air passage through this louver system after expansion.
  • Such construction of a fire resistant louver system in front of a ventilation device can e.g. be found with the fire damping ventilation device of BUVA rationale bouwproducten B.V. which is currently distributed under the name "BUVA-FireSlide", or with the fire damping ventilation device of Vero Duco NV, which is currently distributed under the name "FireMax”.Such construction can also be found with e.g. the ventilation device as described in DE 101 34 839 A1 .
  • a steel frame is moreover provided, in order to be able to at least partially maintain the structure of the ventilation device in the event of fire.
  • Existing ventilation devices however normally comprise several sections in aluminium and/or plastic which define the structure of these ventilation devices.
  • Such aluminium and/or plastic sections are easily shaped by means of e.g. extrusion, allowing e.g. a regulating valve to be easily implemented, allowing to implement intermediate sections with which heat bridges are avoided, etc.
  • these aluminium and/or plastic sections melt, such that the structure of the ventilation device is lost and undesirable air passage openings are created.
  • the object of the invention is therefore to provide a fire damping ventilation device which can be made with the appearance of existing ventilation devices which aren't fire damping, substantially maintaining the quality of ventilating and avoiding heat bridges.
  • a fire damping ventilation device comprising a ventilation duct for air passage and comprising intumescent material which is installed in the ventilation duct such that it is able to close off the ventilation duct after expansion, wherein the fire damping ventilation device comprises ceramic structural elements which are installed in the ventilation duct such that under the effect of heat the structure of the ventilation device is at least partially maintained by means of these ceramic structural elements.
  • Such ventilation device according to the invention can be mainly produced in the same way as existing ventilation devices, using aluminium and/or plastic profiles. Only space for installing the ceramic structural elements needs to be provided. By installing ceramic structural elements in the ventilation duct, these elements will at least partially maintain the structure of the ventilation duct in the event of fire.
  • the profiles used for building up the ventilation device can thus be made of a material which melts under temperatures which occur in the event of fire, as long as the ceramic structural elements are placed in such a way that they prevent creation of undesirable air passage openings in the event of fire. In this way, a ventilation device according to the invention can be constructed having a similar appearance as existing ventilation devices.
  • a specific embodiment of a ventilation device comprises connecting elements for installing the ventilation device on top of a glass pane and inside a window frame. At least part of the ceramic structural elements are then preferably provided adjacent these connecting elements and adjacent the ventilation duct such that at least the structure of the ventilation device near these connecting elements is at least partially maintained under the effect of heat.
  • connecting elements comprise at least one or more profiles delimiting a hole
  • this hole is preferably at least partially filled with at least part of the ceramic structural elements.
  • connecting elements comprise at least one or more profiles forming a groove wherein the glass pane can be fitted, and comprise rubber for installing between the last said profiles and the glass pane, then at least part of the intumescent material is preferably provided in the groove of the profiles.
  • This intumescent material is preferably pressureless expandable.Pressureless expandable means that upon expansion, the intumescent material will at least partially fill the available space, without exercising a force upon the surrounding obstacles.
  • Rubber (natural or synthetic) which is normally provided in such a groove between the profiles and the glass pane fitted inside the groove cannot withstand the relatively high temperatures which occur during a fire. There is therefore a risk that undesired air passage openings would be created at such rubber sealing.
  • intumescent material can be provided, which will fill the space which is created when the rubber withers away in the event of fire.
  • At least part of the intumescent material is centrally provided in the ventilation duct and is installed at the top and/or at the bottom of the ventilation duct, in order to fill the ventilation duct as soon as possible after fire breaks out, without hindering normal air passage in the ventilation duct in normal operation at about room temperature.
  • At least part of the intumescent material is furthermore preferably installed at opposed sides of the ventilation duct and at least partially facing each other.
  • the intumescent material can then fill the ventilation duct towards each other, such that the intumescent material at one side only needs to expand to about halfway the ventilation duct.
  • the ventilation device When the ventilation device is provided with connecting means for installing the ventilation device on top of a glass pane and inside a window frame, then the intumescent material which is installed at opposed sides of the ventilation duct is preferably installed near the connecting elements.
  • a further specific embodiment of a fire damping ventilation device comprises a regulating valve which is moveably mounted in the ventilation duct between an open position with maximum air passage through the ventilation duct and a closed position wherein the air passage is blocked. At least part of the intumescent material is then preferably installed in such a way that upon expansion it creates a pressure which closes the regulating valve into its closed position.
  • At least part of the intumescent material is preferably provided on the surface of the regulating valve, creating an extra barrier at closing of the ventilation duct in the event of fire.
  • a ventilation device furthermore preferably comprises one or more profiles which at least partially delimit the ventilation duct.
  • At least part of the ceramic structural elements are fixedly connected to one or more of last said profiles.
  • said one or more profiles are preferably made of aluminium.
  • Last said one or more profiles furthermore preferably comprise one or more holes wherein at least part of the ceramic structural elements are installed.
  • a fire damping ventilation device furthermore preferably comprises front plates which are made of ceramic structural elements and which form at least part of the ceramic structural elements.
  • the fire damping ventilation device (1) as illustrated in figure 1 comprises a ventilation duct (2) for air passage from an inlet (14) to an outlet (15).
  • the ventilation duct (2) is mainly determined by aluminium profiles (3) and intermediate plastic profiles (13). All profiles (3) could be made of plastics or any other suitable material, but a preferred embodiment comprises the said aluminium profiles (3).
  • the intermediate plastic profiles (13) are made of plastic and more specific of PVC to prevent cold bridges between the inlet (14) and the outlet (15). This plastic is more preferably made fire damping.
  • the ends of the ventilation duct (2) are delimited with front plates which are preferably made of ceramic material.
  • the ventilation device (1) is provided with connecting elements (10) for installing the ventilation device (1) on top of a glass pane and inside a window frame.
  • the connecting element (10) at the top of the ventilation device (1) comprises several profiles (11, 13) delimiting a hole which is filled with a ceramic structural element (4), in order to prevent the creation of undesired openings above the ventilation device (1) in the event of fire.
  • the ceramic structural element (4) is fixedly connected to the profiles (11) by means of one or more screws (8), such that it hardly shifts away in the event of fire.
  • Such ceramic structural element (4) can e.g. be made of calcium silicate and can e.g. be reinforced by means of fibres and/or mica and/or steam, etc.
  • the connecting element (10) at the base of the ventilation device (1) comprises several profiles (12, 13) forming a groove wherein the glass pane can be fitted.
  • a further connecting element (17) can be fitted inside this groove, such that the ventilation device (1) can be mounted on top of a window frame by means of this further connecting element (17).
  • This further connecting element (17) can e.g. be made of aluminium and can be made hollow.
  • a ceramic structural element (4) is then preferably inserted in the hole of this further connecting element (17) in order to prevent the creation of undesired openings below the ventilation device (1) in the event of fire.
  • This ceramic structural element (4) is then preferably fixedly connected to the further connecting element (17), by means of e.g. one or more screws (8)such that it hardly shifts away in the event of fire.
  • intumescent material (6) is provided, which is pressureless expandable. In the event of fire, this intumescent material (6) fills the space which is created when the rubber withers away.
  • pressureless intumescent material (6) can e.g. expand 25 to 40 times in volume, hardly creating any pressure on the adjacent obstacles.
  • the aluminium profiles (3) are provided with slots (16) wherein ceramic structural elements (4) are installed. These slots (16) are provided at opposed sides of the ventilation duct (2), at least partially facing each other and such that the ceramic structural elements (4) can be provided adjacent the connecting elements (10), such that at least the structure of the ventilation device (1) near these connecting elements (10) is at least partially maintained under the effect of heat and such that the creation of undesired openings is avoided.
  • the ceramic structural elements (4) are furthermore fixedly connected to the said profiles (3) by means of screws (8), such that they hardly shift away in the event of fire.
  • Intumescent material (5) is installed at opposed sides of the ventilation duct (2) on the ceramic structural elements (4) which are installed in the said slots (16).
  • This intumescent material (5) creates a pressure in the event of fire, such that it is able to close off the ventilation duct (2) in the event of fire as soon as possible, without hindering normal air passage in the ventilation duct in normal operation at about room temperature.
  • Such intumescent material (5) preferably creates a pressure between 0, 4 and 0, 85 N/mm 2 at about 300°C and expands about 18 times in volume (30 min, 55 °C, stressed).
  • the ventilation device (1) furthermore comprises a regulating valve (7) which is moveably mounted in the ventilation duct (2) between an open position with maximum air passage through the ventilation duct (2) and a closed position wherein the air passage is blocked.
  • the intumescent material (5) at the bottom of the ventilation duct (2) is furthermore installed in such a way with respect to this regulating valve (7) that upon expansion it creates a pressure which closes the regulating valve (7) into its closed position.
  • additional intumescent material (6) is provided, in order to create an extra barrier in the event of fire.
  • Further strips of intumescent material (5, 6) are installed, in order to fill the ventilation duct (2) as much as possible in the event of fire.
  • the strips of intumescent material (5, 6) near the end flap (18) are preferably pressureless expandable in order not to push the end flap off of the ventilation device (1) in the event of fire. Further away from such parts of the ventilation device (1) which can be pushed off, preferably intumescent material (5) is used in the ventilation duct which creates a pressure upon expansion.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Building Environments (AREA)
EP10188812.1A 2010-10-26 2010-10-26 Brandschutzbelüftungsvorrichtung Active EP2446931B8 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10188812.1A EP2446931B8 (de) 2010-10-26 2010-10-26 Brandschutzbelüftungsvorrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10188812.1A EP2446931B8 (de) 2010-10-26 2010-10-26 Brandschutzbelüftungsvorrichtung

Publications (3)

Publication Number Publication Date
EP2446931A1 true EP2446931A1 (de) 2012-05-02
EP2446931B1 EP2446931B1 (de) 2020-01-15
EP2446931B8 EP2446931B8 (de) 2020-03-04

Family

ID=43844591

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10188812.1A Active EP2446931B8 (de) 2010-10-26 2010-10-26 Brandschutzbelüftungsvorrichtung

Country Status (1)

Country Link
EP (1) EP2446931B8 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2506335A (en) * 2012-07-16 2014-04-02 Intumescent Systems Ltd Duct hatch assembly

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10134839A1 (de) 2001-07-17 2003-02-06 Guenter Schulte Einrichtung zum rauch- und feuerbeständigen Verschliessen eines Wand- oder Deckendurchbruchs
WO2003023267A1 (en) * 2001-09-10 2003-03-20 Truss Holdings Pty Ltd Fire collar
WO2004072531A1 (en) * 2003-02-11 2004-08-26 Truss Holdings Pty. Ltd. Damper with rotary valve

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1036391C2 (nl) * 2009-01-08 2010-07-14 Vero Duco Nv Brandwerende ventilatie-inrichting.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10134839A1 (de) 2001-07-17 2003-02-06 Guenter Schulte Einrichtung zum rauch- und feuerbeständigen Verschliessen eines Wand- oder Deckendurchbruchs
WO2003023267A1 (en) * 2001-09-10 2003-03-20 Truss Holdings Pty Ltd Fire collar
WO2004072531A1 (en) * 2003-02-11 2004-08-26 Truss Holdings Pty. Ltd. Damper with rotary valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2506335A (en) * 2012-07-16 2014-04-02 Intumescent Systems Ltd Duct hatch assembly
GB2506335B (en) * 2012-07-16 2018-07-04 Intumescent Systems Ltd Inspection hatch assembly

Also Published As

Publication number Publication date
EP2446931B8 (de) 2020-03-04
EP2446931B1 (de) 2020-01-15

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