EP2730315A1 - Verbesserte Brandschutzklappe - Google Patents
Verbesserte Brandschutzklappe Download PDFInfo
- Publication number
- EP2730315A1 EP2730315A1 EP13192384.9A EP13192384A EP2730315A1 EP 2730315 A1 EP2730315 A1 EP 2730315A1 EP 13192384 A EP13192384 A EP 13192384A EP 2730315 A1 EP2730315 A1 EP 2730315A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fire damper
- tubular case
- case
- fire
- 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.)
- Granted
Links
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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.
- 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.
- said difference in size clearly causes the presence of clearances between the surfaces of the hole and the external surface of the fire damper.
- said clearances give rise to two important drawbacks.
- 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 present invention intends to overcome all the drawbacks of the known art outlined above.
- a first embodiment of the fire damper that is 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, always according to said cross- section plane, may have a circular shape, as can be seen in Figure 4 .
- the tubular case 2 is preferably made as a single piece.
- the same tubular case may comprise two or more tubular half-cases joined to each other according to the direction defined by the longitudinal axis Y.
- 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 the tubular case 102 is made exclusively in a single piece and, furthermore, 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)
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 true EP2730315A1 (de) | 2014-05-14 |
EP2730315B1 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 (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021037807A1 (en) * | 2019-08-30 | 2021-03-04 | Dutch Innovation In Air Treatment B.v. | A gas flow system |
EP3865780A1 (de) * | 2020-02-14 | 2021-08-18 | Rf-Technologies nv | Montagekragen für ein belüftungselement |
KR20210155503A (ko) * | 2020-06-16 | 2021-12-23 | 신승용 | 단열차단판을 구비한 방화댐퍼 |
EP4282492A1 (de) * | 2022-05-25 | 2023-11-29 | Rf-Technologies | Brandschutzklappe mit isoliertem gehäuseteil |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK3984602T3 (da) * | 2020-10-19 | 2023-12-04 | Ekovent Ab | Brandspjæld til et ventilationssystem |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1779901A2 (de) * | 2005-10-27 | 2007-05-02 | Ciat Sp. z o. o. | Brandschutzklappe |
GB2453950A (en) * | 2007-10-23 | 2009-04-29 | Emcogroup Ltd | Fire damper |
EP2181733A1 (de) * | 2008-10-28 | 2010-05-05 | MP3 S.r.l. | Feuerbeständige Klappe mit Vertiefungen für einen Stift, die in Kombination aus zwei Rohrelementen erzeugt werden; und Verfahren zur Installation der feuerbeständigen Klappe |
EP2239014A1 (de) * | 2009-04-06 | 2010-10-13 | Rf-Technologies nv | Brandschutz-Absperrvorrichtung |
-
2012
- 2012-11-12 IT IT000304A patent/ITVI20120304A1/it unknown
- 2012-11-26 IT IT000316A patent/ITVI20120316A1/it unknown
-
2013
- 2013-11-11 EP EP13192384.9A patent/EP2730315B1/de not_active Not-in-force
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1779901A2 (de) * | 2005-10-27 | 2007-05-02 | Ciat Sp. z o. o. | Brandschutzklappe |
GB2453950A (en) * | 2007-10-23 | 2009-04-29 | Emcogroup Ltd | Fire damper |
EP2181733A1 (de) * | 2008-10-28 | 2010-05-05 | MP3 S.r.l. | Feuerbeständige Klappe mit Vertiefungen für einen Stift, die in Kombination aus zwei Rohrelementen erzeugt werden; und Verfahren zur Installation der feuerbeständigen Klappe |
EP2239014A1 (de) * | 2009-04-06 | 2010-10-13 | Rf-Technologies nv | Brandschutz-Absperrvorrichtung |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021037807A1 (en) * | 2019-08-30 | 2021-03-04 | Dutch Innovation In Air Treatment B.v. | A gas flow system |
NL2023734B1 (en) * | 2019-08-30 | 2021-05-11 | Dutch Innovation In Air Treat B V | A gas flow system |
EP3865780A1 (de) * | 2020-02-14 | 2021-08-18 | Rf-Technologies nv | Montagekragen für ein belüftungselement |
BE1028054B1 (nl) * | 2020-02-14 | 2021-09-13 | Rf Tech Nv | Installatiekraag voor een ventilatie-element |
KR20210155503A (ko) * | 2020-06-16 | 2021-12-23 | 신승용 | 단열차단판을 구비한 방화댐퍼 |
EP4282492A1 (de) * | 2022-05-25 | 2023-11-29 | Rf-Technologies | Brandschutzklappe mit isoliertem gehäuseteil |
Also Published As
Publication number | Publication date |
---|---|
ITVI20120304A1 (it) | 2014-05-13 |
EP2730315B1 (de) | 2016-11-23 |
ITVI20120316A1 (it) | 2014-05-13 |
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