EP2730315B1 - Verbesserte Brandschutzklappe - Google Patents

Verbesserte Brandschutzklappe Download PDF

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Publication number
EP2730315B1
EP2730315B1 EP13192384.9A EP13192384A EP2730315B1 EP 2730315 B1 EP2730315 B1 EP 2730315B1 EP 13192384 A EP13192384 A EP 13192384A EP 2730315 B1 EP2730315 B1 EP 2730315B1
Authority
EP
European Patent Office
Prior art keywords
fire damper
tubular case
fire
case
seal
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
EP13192384.9A
Other languages
English (en)
French (fr)
Other versions
EP2730315A1 (de
Inventor
Mirco Perazzolo
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.)
MP3 SRL
Original Assignee
MP3 SRL
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Filing date
Publication date
Application filed by MP3 SRL filed Critical MP3 SRL
Publication of EP2730315A1 publication Critical patent/EP2730315A1/de
Application granted granted Critical
Publication of EP2730315B1 publication Critical patent/EP2730315B1/de
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
    • A62C2/065—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
    • 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
    • F24F13/02—Ducting arrangements
    • F24F13/0209—Ducting arrangements characterised by their connecting means, e.g. flanges
    • 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 concerns an improved fire damper, in particular the tubular case supporting said fire damper.
  • a fire damper is a device capable of closing a local vent when it is necessary to prevent the passage of fumes and/or flames in case of fire.
  • a fire damper of the known type comprises a tubular body, called "case” in technical jargon, generally made of a metallic material, which delimits one section of said vent and makes it possible to fix the fire damper to the rest of the vent.
  • Said tubular cases substantially have a rectangular or circular cross section.
  • a first type of tubular cases of the fire dampers of the known art is provided with two half-cases between which there is an interposed frame in a heat-insulating material, which interrupts the continuity of said case in such a way as to prevent the transmission of heat along the walls of the same case.
  • the frame is provided with a through opening so as to revolvingly support a shutter blade that is configured so that it can rotate between an open position, in which the blade is arranged substantially parallel to the axis of the case in such a way as to allow the passage of air, and a closed position, in which the blade is arranged perpendicular to the axis of the case, so as to prevent said passage of air.
  • a second type of fire dampers comprises, instead, a case made as a single piece, on which the rotary shaft of the shutter blade is directly hinged in such a way as to allow the latter to rotate from said open position to said closed position and vice versa.
  • the former document describes a fire damper having improved fire resistance, comprising an air flow duct, a damper blade, which is provided in the air flow duct and can be rotated between an open position and a closed position, and a strip of intumescent material which expands under the effect of the heat.
  • a strip of intumescent material is also designed to fill the space between the damper blade and the air flow duct after expansion and in the closed position of the damper blade, the damper blade being provided with at least one protruding edge along its periphery.
  • the document EP 1 779 901 describes a fire damper composed of a body and an internal blade.
  • fire dampers are installed at the level of the walls that divide the various rooms inside a building.
  • the walls in which the fire dampers have to be installed are provided with holes that are larger than the cross section of the fire dampers, so that the latter can be introduced through the hole without obstacles.
  • the first drawback lies in that the fire damper simply introduced in the corresponding hole is not permanently fixed to the wall.
  • the second drawback lies in that said clearances, disadvantageously, do not prevent the flames and/or fumes from passing from one side of the wall to the other in case of fire.
  • said fixing elements and materials makes it possible to both permanently fix the fire damper to the respective wall and prevent the passage of flames and/or fumes through said clearances in case of fire.
  • an incorrect positioning operation may affect the effectiveness of the fire damper and of the entire local vent.
  • the prior art document GB 2 453 950 describes an alternative solution for the fixing of the fire damper to the wall.
  • this document describes a fire damper for an aperture in a wall or ceiling formed of a generally cylindrical hollow casing having a first end for mounting into an aperture in the ceiling. Moreover, the casing has a second end for mounting into a ventilation duct extending from the aperture in the ceiling.
  • a first collar of intumescent material is provided on the outside of the casing adjacent the first end for location adjacent an edge of the aperture and a second collar of intumescent material is provided on the inside of the casing adjacent the second end.
  • the present invention intends to overcome all the drawbacks of the known art outlined above.
  • a first embodiment of the fire damper that illustrates many elements of the subject of the invention is shown as a whole in Figures from 1 to 3, where it is indicated by 1.
  • the fire damper 1 comprises a tubular case 2 usually made of a metallic material.
  • a shutter blade 3 revolvingly associated therewith and configured so that it can rotate around a rotation axis X between an open position, in which it is arranged parallel to the longitudinal axis Y of the tubular case 2, and a closed position, in which the same blade 3 is arranged so that it is incident on the longitudinal axis Y of said tubular case 2.
  • the rotation of the blade 3 is obtained through moving means, not illustrated in the figure but known per se, that are activated in case of fire.
  • the fire damper 1 comprises at least one annular heat-expanding seal 4 arranged around the tubular case 2 and resting on the external surface 21 of the same tubular case 2.
  • the presence of said annular heat-expanding seal 4 on the external surface 21 of the case 2 makes it possible to install the fire damper 1 in a wall P of a building through the so-called "dry” techniques, that is, with no need to use fixing elements or materials like for example concrete mixes or expanding polyurethane foams.
  • the fire damper 1 of the invention must be introduced in a hole F made in said wall P, whose size and shape substantially coincide with the cross section of the tubular case 2.
  • the section of the tubular case 2 in which said annular heat-expanding seal 4 is arranged is in proximity to the hole F, the same annular heat-expanding seal 4 comes into contact with the perimeter surfaces of the same hole F, fixing the fire damper 1 of the invention to the wall P through interference, as can be seen in the detail shown in Figure 7 .
  • annular heat-expanding seal 4 which is arranged between the external surface 21 of the tubular case 2 and the perimeter surfaces of the hole F when the fire damper 1 is installed, is sufficient to prevent the passage of flames and/or fume in case of fire, as the seal 4 expands and thus seals in an optimal manner any clearances and fissures that may be present between the wall P and the fire damper 1.
  • the fire damper 1 of the invention preferably comprises two annular heat-expanding seals 4 arranged parallel to each other on the external surface 21 of the case 2.
  • annular seal 4 there may be a single annular seal 4 or there may be more than two annular heat-expanding seals 4 arranged parallel to one another.
  • the two annular heat-expanding seals 4 are arranged on the external surface 21 of the tubular case 2 in such a way that the planes ⁇ and ⁇ on which they lie are two planes that are orthogonal to the longitudinal axis Y of the same tubular case 2.
  • tubular case 2 and the blade 3 of the fire damper 1 according to a cross-section plane orthogonal to the longitudinal axis Y, have a rectangular shape, as can be seen in Figure 3 .
  • tubular case 2 and the blade 3 may have a circular shape, as can be seen in Figure 4 .
  • the tubular case 2 is made as a single piece.
  • a second embodiment of the fire damper that is the subject of the invention, indicated by 101 in Figure 5 includes all the characteristics of the first embodiment of the fire damper 1 described above, as well as the possible variants.
  • said second embodiment of the invention can be distinguished from the fire damper 1 due to the fact that it comprises a frame 105 made in a heat-insulating material, preferably calcium silicate fibre or another refractory material.
  • Said frame 105 perimetrically delimits an opening 106 with which the shutter blade 103 is revolvingly associated around the rotation axis X.
  • the tubular case 102 is configured in such a way as to internally define a recess 107 suited to permanently accommodate said frame 105.
  • the presence of the recess 107 makes it possible to constrain the frame 105 to the tubular case 102 with no need to use screws, adhesive substances or other analogous fixing means.
  • the fact that the frame 105 is arranged on the inner side of the tubular case 102 allows for better protection of the same frame 105 during both transport and installation, with the advantage of obtaining a sturdier fire damper 101.
  • the two annular heat-expanding seals 104 are concerned, as shown in Figure 5 , they are arranged in the portion 122 of the external surface 121 of the tubular case 102 at the level of which said recess 107 is defined.
  • a seal not represented in the figures but known per se, which advantageously prevents the passage of gas between the two elements.
  • said seal is arranged in a housing obtained on the external perimeter surface of the frame 105.
  • the tubular case 102 comprises a plurality of through openings 108 facing the recess 107, visible in Figure 5 , which reduce the average cross section of the tubular case 102 and thus limit its heat conductivity in the direction defined by the axis Y.
  • the through openings 108 make it possible to hinder heat transmission by conductivity along the tubular case 102 also in the case where the latter is made from a single piece of conductive material like, for example, a metal plate.
  • metal plate advantageously makes it possible to obtain a light, resistant and economic tubular case 102.
  • the through holes 108 are made at the level of the recess 107, they are advantageously covered by the frame 105 on the inner side and by the annular heat-expanding seals 104 on the outer side, which therefore prevent the gas contained in the tubular case 102 from flowing towards the outside across the through openings 108.
  • the tubular case 102 is made starting from a bent metal plate.
  • the fire damper 1, 101 is introduced in a hole F made in a wall P of a building and fixed therein through interference.
  • the fire damper 1, 101 of the invention is introduced in said hole F until the annular heat-expanding seals 4, 104 are coupled through interference to the perimeter surfaces of the hole F, as shown in the detail of Figure 7 , therefore with no need to use fixing elements and materials.
  • the blade 3, 103 is rotated in the closed position, in such a way as to prevent the passage of flames and fume along the local vent.
  • the annular heat-expanding seals 4, 104 expand thanks to the heat that is generated in case of fire and thus make it possible to seal any clearances and fissures that may be present between the hole F and the fire damper 1, 101.
  • the invention achieves the object to provide a fire damper that can be installed in a simpler and quicker way compared to the fire dampers of the known type.
  • the invention achieves the object to provide a fire damper suited to be installed without the aid of special instruments and fixing materials.
  • the invention furthermore achieves the object to provide a fire damper that is more resistant to external stresses during production, transport and even installation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Claims (6)

  1. Brandschutzschieber (101) des Typs, der ein röhrenförmiges Gehäuse (102) umfasst, das aus einem Stück gefertigt ist und in dem sich ein drehend verbundenes Verschlussblatt (103) befindet, dazu geeignet, sich zwischen einer offenen Position, in der das besagte Verschlussblatt (103) parallel zu der Längsachse (Y) des besagten, röhrenförmigen Gehäuses (102) angeordnet ist, und einer geschlossenen Position, in welcher das besagte Verschlussblatt (103) so angeordnet ist, dass es auf die besagte Längsachse (Y) des besagten, röhrenförmigen Gehäuses (102) einfällt, um eine Drehachse (X) zu drehen, wobei der besagte Brandschutzschieber (101) wenigstens eine ringförmige, thermisch aufquellende Dichtung (104) umfasst, die um das besagte, röhrenförmige Gehäuse (102) in Kontakt mit der Außenfläche (121) des besagten, röhrenförmigen Gehäuses (102) angeordnet ist, dadurch gekennzeichnet, dass das besagte, röhrenförmige Gehäuse (102) so konfiguriert ist, dass es innen eine Vertiefung (107) definiert, die dazu geeignet ist, dauerhaft einen Rahmen (105) aus wärmeisolierendem Material aufzunehmen, mit dem das besagte Verschlussblatt (103) drehend verbunden ist, und dadurch, dass die wenigstens eine ringförmige, thermisch aufquellende Dichtung (104) an dem Abschnitt (122) der besagten Außenfläche (121) des besagten, röhrenförmigen Gehäuses (102), auf dessen Ebene die besagte Vertiefung (107) definiert ist, angeordnet ist.
  2. Brandschutzschieber (101) gemäß Patentanspruch 1, dadurch gekennzeichnet, dass die besagte ringförmige, thermisch aufquellende Dichtung (104) so an der besagten Außenfläche (121) des besagten, röhrenförmigen Gehäuses (102) angeordnet ist, dass die Ebene (π, γ), auf der sie liegt, orthogonal zu der besagten Längsachse (Y) des besagten, röhrenförmigen Gehäuses (102) ist.
  3. Brandschutzschieber (101) gemäß eines jeden der vorstehenden Patentansprüche, dadurch gekennzeichnet, dass die besagte, wenigstens eine ringförmige, thermisch aufquellende Dichtung (104) zwei ringförmige, thermisch aufquellende Dichtungen (104) umfasst, die parallel zueinander an der besagten Außenfläche (121) angeordnet sind.
  4. Brandschutzschieber (101) gemäß eines jeden der vorstehenden Patentansprüche, dadurch gekennzeichnet, dass zwischen dem besagten Rahmen (105) und der besagten Vertiefung (107) eine Dichtung vorhanden ist, die dazu geeignet ist, den Durchgang von Gas zwischen den besagten zwei Elementen zu verhindern.
  5. Brandschutzschieber (101) gemäß Patentanspruch 4, dadurch gekennzeichnet, dass die besagte Dichtung in einer Aufnahme angeordnet ist, die an der äußeren Umfangsfläche des besagten Rahmens (105) gewonnen ist.
  6. Brandschutzschieber (101) gemäß eines jeden der vorstehenden Patentansprüche, dadurch gekennzeichnet, dass das besagte, röhrenförmige Gehäuse (102) eine Vielzahl durchgehender Öffnungen (108) umfasst, die zu der besagten Vertiefung (107) gerichtet sind, so dass der durchschnittliche Querschnitt des besagten, röhrenförmigen Gehäuses (102) reduziert ist.
EP13192384.9A 2012-11-12 2013-11-11 Verbesserte Brandschutzklappe Not-in-force EP2730315B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000304A ITVI20120304A1 (it) 2012-11-12 2012-11-12 Struttura di supporto per serranda tagliafuoco e serranda tagliafuoco comprendente tale struttura di supporto
IT000316A ITVI20120316A1 (it) 2012-11-12 2012-11-26 Serranda tagliafuoco perfezionata

Publications (2)

Publication Number Publication Date
EP2730315A1 EP2730315A1 (de) 2014-05-14
EP2730315B1 true EP2730315B1 (de) 2016-11-23

Family

ID=47471965

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13192384.9A Not-in-force EP2730315B1 (de) 2012-11-12 2013-11-11 Verbesserte Brandschutzklappe

Country Status (2)

Country Link
EP (1) EP2730315B1 (de)
IT (2) ITVI20120304A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3984602A1 (de) * 2020-10-19 2022-04-20 Ekovent Ab Brandschutzklappe für ein lüftungssystem

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2023734B1 (en) * 2019-08-30 2021-05-11 Dutch Innovation In Air Treat B V A gas flow system
BE1028054B1 (nl) * 2020-02-14 2021-09-13 Rf Tech Nv Installatiekraag voor een ventilatie-element
KR102386091B1 (ko) * 2020-06-16 2022-04-12 신승용 단열차단판을 구비한 방화댐퍼
EP4282492A1 (de) * 2022-05-25 2023-11-29 Rf-Technologies Brandschutzklappe mit isoliertem gehäuseteil

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL205587B1 (pl) * 2005-10-27 2010-05-31 Ciat Spo & Lstrok Ka Z Ogranic Przeciwpożarowa klapa odcinająca
GB2453950A (en) * 2007-10-23 2009-04-29 Emcogroup Ltd Fire damper
IT1391497B1 (it) * 2008-10-28 2011-12-23 Mp3 S R L Serranda tagliafuoco con alloggiamenti per il perno realizzato dall'unione di due elementi tubolari e metodo di montaggio della suddetta serranda tagliafuoco
BE1018315A5 (nl) * 2009-04-06 2010-08-03 Rf Technologies Nv Brandwerende ventilatieklep.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3984602A1 (de) * 2020-10-19 2022-04-20 Ekovent Ab Brandschutzklappe für ein lüftungssystem

Also Published As

Publication number Publication date
ITVI20120316A1 (it) 2014-05-13
ITVI20120304A1 (it) 2014-05-13
EP2730315A1 (de) 2014-05-14

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