EP2366435B1 - Brandschutzklappe - Google Patents

Brandschutzklappe Download PDF

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Publication number
EP2366435B1
EP2366435B1 EP11158318.3A EP11158318A EP2366435B1 EP 2366435 B1 EP2366435 B1 EP 2366435B1 EP 11158318 A EP11158318 A EP 11158318A EP 2366435 B1 EP2366435 B1 EP 2366435B1
Authority
EP
European Patent Office
Prior art keywords
damper
blades
damper according
fire
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.)
Active
Application number
EP11158318.3A
Other languages
English (en)
French (fr)
Other versions
EP2366435A1 (de
Inventor
Roman Jedrzejewski
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.)
Grempco SA
Original Assignee
Grempco SA
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 Grempco SA filed Critical Grempco SA
Priority to PL11158318T priority Critical patent/PL2366435T3/pl
Publication of EP2366435A1 publication Critical patent/EP2366435A1/de
Application granted granted Critical
Publication of EP2366435B1 publication Critical patent/EP2366435B1/de
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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
    • A62C2/14—Hinged dampers with two or more blades
    • 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
    • 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
    • F24F13/1486—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 bearings, pivots or hinges
    • 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
    • F24F13/15—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre with parallel simultaneously tiltable lamellae
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/30—Details or features not otherwise provided for comprising fireproof material

Definitions

  • the object of the invention is a fire damper which is a multiblade damper used in ventilation or air conditioning systems as a transfer or a fire ventilation damper.
  • fire dampers are known in the art having movable blades (the so called deflectors), that are used to close ventilation openings.
  • the fire dampers prevent fire and smoke to be transferred from the rooms on fire to other rooms.
  • the fire dampers should have a specific fire resistance and smoke tightness. These parameters are designated as EIS tt respectively, where E stands for fire integrity, I - fire insulation, S - smoke tightness, tt -the time in which all the mentioned parameters are being maintained.
  • the dampers are automatically released by means of an actuating mechanism with a thermal fuse trigger or an electric thermal trigger or, in case of the fire ventilation damper, a drive mechanism remotely controlled by an electric signal.
  • fireproof materials are used for the damper construction.
  • rubber or silicone sealings and swelling sealings are used, which ensure the tightness of the structure during a fire when ordinary sealings lose their fireproof characteristics.
  • GB2 118 293 A discloses a fluid damper device comprising i.a frame and pivotally mounted blades.
  • the blades present in device disclosed in said document are not connected to each other via angle bars and by a link enabling drive transmission between the successive blades. Instead, the blades are connected to elements such as caps or discs, which in turn are connected by means of bars and rods in alternative manner, i.e. first disc is connected to first bar, second disc is connected to second bar, third disc is connected to the first bar, fourth disc is connected to second bar, and so on.
  • said mechanisms are located outside the fire damper body and therefore they increase the size of the device.
  • at least one spring is not connected with one blade - springs are attached to caps or discs or, alternatively, to bars or rods.
  • a fire damper according to the invention comprises a body consisting of a steel frame, and at least two pivotally mounted blades made of a fire protection material, the blades being provided with sealings comprising seals.
  • each of the blades is provided with two rotary axles located in two respective bearings placed on the opposite vertical sides of the body of the damper, the blades being connected to each other via angle bars and by a link enabling drive transmission between the successive blades, and in that at least one spring is attached by its one end to the body of the damper, the other end of the spring being connected with one blade.
  • the fire damper according to the invention comprises a body consisting of a steel frame, and at least two pivotally mounted pivotally mounted blades made of a fire protection material, the body of the damper and the blades being provided with sealings comprising seals.
  • each of the blades is provided with two rotary axles located in two respective bearings placed on the opposite vertical sides of the body of the damper, the blades being connected to each other via angle bars and by a link enabling drive transmission between the successive blades, and in that at least one spring is attached by its one end to the body of the damper, the other end of the spring being connected with one blade.
  • the at least one spring is attached to the body of the damper by means of a support.
  • the sealings are preferably placed on both short sides and one long side of the blades.
  • the sealings are placed on one long side of each blade on the vertical sides of the body of the damper.
  • the sealings preferably also comprise at least one first seal made of an elastic material, having a hollow cross section so as to ensure the tightness between the blades as well as between the blades and the body.
  • the first seals are silicone seals.
  • the first seals are O-ring seals.
  • the sealings preferably comprise at least one second seal placed on one of the longer sides of each of the blades.
  • a second seal is placed on the inner surface of the vertical side of the damper body, where the link is located.
  • a second seal is placed on the inner surface of the upper and lower sides the damper body as well as on its vertical side, the one that is opposite to the location of the link .
  • the second seal is preferably a swelling seal.
  • At least one blade is connected to a fuse trigger the other side of which is mounted on a support attached to the body.
  • At least one blade is connected to a drive actuator.
  • the support has the form of an angle bar and is attached to the body so that it forms a blade movement stop.
  • the damper preferably comprises at least one protection grate.
  • the damper body is surprisingly short as compared to other commercially available dampers of the EIS 120 fire rating, as it is only 120 mm long. It allows easy installation of the fire damper in the construction barriers the fire resistance characteristics of which are REI 120 or EI 120, in such a way that the body of the damper and its blades do not extend beyond of the barrier outline while the damper remains open.
  • the damper body was made of a steel sheet, preferably perforated, which allowed obtaining fire insulation.
  • the drive of the damper (the drive mechanism) is located within the damper body.
  • the drive mechanism is efficiently protected against soiling that may arise during installation because it is located on the inner side of the damper body whereby no contact with mortar or gypsum is possible during installation.
  • the pivotally mounted blades are made in such a way, that they do not extend beyond the damper body outline in their open position.
  • the design of the damper enables installation of the protection grates (of aluminium or steel) on one or two sides of the damper (depending on the wall thickness).
  • the invention provides a fire resistant and smoke tight fire damper, the length of which is shortened to the possible minimum thanks to the use of the several pivotally mounted blades.
  • the damper of the invention has the additional feature of enabling the replacement of the individual damaged blades without dismounting the damper that is built into a construction barrier.
  • the blades do not extend beyond the outline of the damper.
  • the possibility of dismounting results from a specially designed blade axle which is inserted into a slot on the short sides of the barrier and fixed to the barrier by means of bolts.
  • fig. 1 shows the front view of the open damper according to the invention
  • fig. 2 shows a cross section of the damper along the A-A line of fig. 1
  • fig. 3 shows a cross section of the damper along the B-B line of fig. 1
  • fig. 4 shows the front view of the closed damper according to the invention in the remote control version
  • fig. 5 shows the side view of the damper of fig. 4
  • fig. 6 shows the front view of the open damper of fig. 4
  • fig. 7 shows the side view of a part of the closed damper of fig. 7
  • fig. 8 shows the enlarged detail of fig. 7 , fig.
  • FIG. 9 shows the side view of the open damper according to the invention, comprising one protection grate
  • fig. 10 shows the side view of the open damper according to invention, comprising two protection grates
  • fig. 11 shows the enlarged detail of fig. 2
  • fig. 12 shows a part of the damper cross section in the second embodiment of the invention, similar to the cross section along the B-B line, but on the other side of the barrier.
  • the multiblade fire damper shown in fig. 1 comprises a body 4 consisting of a steel frame, and a multiplicity of blades 1 made of a fire protection material.
  • sealings 10 On both short sides and on one long side of the blades 1, sealings 10 have been fixed by means of staples, the sealings 10 comprising the first elastic seals having a hollow cross section.
  • the first seals are made of silicone and have an O-shaped cross section as it is shown in fig. 11 . The function of these seals is to ensure the tightness between the successive blades 1 as well as between the blades 1 and the body 4 at low temperatures.
  • the second seals 2, 11 and 13, preferably swelling seals, have been used, their function being to ensure the tightness between the successive blades 1 as well as between the blades 1 and the body 4 during a fire.
  • the second swelling seals 2, 11 and 13 differ in width from one another (respectively 30, 40 and 60mm).
  • the seal 2 is fixed on one of the longer sides of each of the blades 1 by means of staples.
  • the seal 11 is glued to the inner surface of the body 4 of the damper on the side of the link 6.
  • the seals 13 are glued to the inner surface of the body 4 of the damper on the remaining sides.
  • Each blade 1 is provided with two rotary axles 14 that are mounted in the respective bearings 5 fixed on the opposite vertical sides of the body 4 of the damper.
  • the possibility of dismounting the blades 1 is provided by a specially designed blade axle 14 which is inserted into a slot on the short sides of the blade 1 and fixed by bolts 16 to the blade 1.
  • the blades 1 are connected to each other by means of a link 6 in the form of, for example, an angle bar. On each blade 1 an angle bar 18 having an opening is mounted.
  • the link 6 has openings spaced by 100 mm (same as the spacing between the blade axles). These two elements are connected with each other by pins and clips. The pins are freely rotable in the openings of the link 6, so as to enable the drive transmission between individual blades 1. The movement (rotation) of any blade 1 causes identical movement of the remaining blades 1.
  • the self-acting damper shown in fig. 1 is opened by manually turning the blade 1 by a 90° angle. Once opened, the blade 1 is blocked in the open position by a fuse trigger 7, which is mounted between the blade 1 and the support 8 of the fuse trigger 7.
  • the support 8 is fixed to the body 4 of the damper (by means of screws).
  • the fuse trigger 7 is mounted on the support 8 by its one end and connected to the blade 1 by its other end. While opening the damper, at least one drive spring 3 becomes stretched. There may be more springs 3, depending on the damper type.
  • Each spring 3 is fixed by its one end to the blade 1 and by its other end to the body 4, preferably by means of the support 9.
  • the damper version comprising the drive actuator 15 ( fig. 4, 5 and 6 )
  • the damper is opened by powering of the actuator 15, the rotation of which causes simultaneous rotation of the blades 1 and stretching of the spring inside the actuator 15.
  • a blade 1 movement stop In order to ensure the correct position of the closed blades 1, a blade 1 movement stop has been used. It consists of a support 12 in the shape of an angle bar fixed to the body 4 of the damper. It ensures that the force generated while closing the blades 1 will not turn them over to the other side - i.e., if the their initial position (closed) is a 0 degree angle and their final position (open) is a 90 degrees angle, the stop makes the blade 1 return to the position of exactly 0 degrees instead of e.g. -5 degrees during closing.
  • the damper may comprise one ( fig. 9 ) or two protection grates 17 ( fig. 10 ).
  • Fig. 11 shows a detail of the sealing 10 consisting of the first seal and the second seal 2, the sealing 10 being placed on the blade.
  • Fig. 12 shows a part of the damper cross section in the second version of the invention, similar to the cross section along the B-B line but on the other side of the blade.
  • the axle 14 and the bearing 5 have been omitted in fig. 12 for the sake of clarity.
  • This damper differs from the above described first version in that both the body 4 and the blades 1 are provided with the sealings 10.
  • the first seal having a hollow cross section is placed on both vertical sides of the body 4.
  • the damper according to invention can be mounted in:
  • the damper according to the invention is suitable for:
  • the damper according to the invention may be used in ventilation or smoke extraction systems as:
  • the damper according to the invention meets the fire resistance requirements of the class EIS 120 and of the EI 120 in the case of the transfer damper with a protection grate 17.

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

Claims (16)

  1. Brandschutzklappe mit einem Gehäuse (4), bestehend aus einem Stahlrahmen, in welchem mindestens zwei drehbare aus feuerfestem Stoff gefertigte Klappenblätter (1) angeordnet sind, wobei Klappenblätter (1) mit Abdichtungen (10) ausgestattet sind, welche Dichtungen umfassen, wo jedes Klappenblatt (1) mit zwei drehbaren Achsen (14) versehen ist, welche in zwei entsprechenden Lagern (5) gelagert sind, wobei die Lager auf zwei gegenüberliegenden senkrechten Seiten des Klappengehäuses (4) angeordnet sind, wobei Klappenblätter(1) über Winkelprofile (18) und einen Verbindungsteil (6) miteinander verbunden sind, wodurch die Antriebskraft zwischen einzelnen Klappenblättern (1) übertragen werden kann, und bei der mindestens eine Feder (3) jeweils mit einem Ende an dem Klappengehäuse (4) befestigt ist, während das zweite Federende (3) mit einem Klappenblatt (1) verbunden ist.
  2. Brandschutzklappe nach Anspruch 1, wo das Klappengehäuse (4) und Klappenblätter (1) mit Abdichtungen (10) ausgestattet sind, welche Dichtungen umfassen.
  3. Brandschutzklappe nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass mindestens eine Feder (3) an dem Klappengehäuse mittels einer Stütze (9) befestigt ist.
  4. Brandschutzklappe nach Anspruch 1, dadurch gekennzeichnet, dass Abdichtungen (10) an beiden Kurzseiten und an einer Längsseite des Klappenblatts (1) angeordnet sind
  5. Brandschutzklappe nach Anspruch 2, dadurch gekennzeichnet, dass Abdichtungen (10) an einer Längsseite eines jeden Klappenblatts (1) an senkrechten Seiten des Klappengehäuses (4) angeordnet sind.
  6. Brandschutzklappe nach Anspruch 1 oder 2 oder 4 oder 5, dadurch gekennzeichnet, dass Abdichtungen (10) auch mindestens eine erste Dichtung umfassen, die aus einem elastischen Stoff gefertigt ist und einen hohlen Querschnitt aufweist, um das Erreichen der Dichtheit zwischen den einzelnen Klappenblättern (1) sowie zwischen den Klappenblättern (1) und dem Klappengehäuse (4) sicherzustellen.
  7. Brandschutzklappe nach Anspruch 6, dadurch gekennzeichnet, dass es sich bei den ersten Dichtungen um Silikondichtungen handelt.
  8. Brandschutzklappe nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass es sich bei den ersten Dichtungen um O-Ring-Dichtungen handelt.
  9. Brandschutzklappe nach Anspruch 1 oder 2 oder 4 oder 5, dadurch gekennzeichnet, dass Abdichtungen (10) mindestens eine zweite Dichtung (2) umfassen, welche an einer der Längsseiten eines jeden Klappenblatts (1) angeordnet ist.
  10. Brandschutzklappe nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die zweite Dichtung (11) auf der inneren Oberfläche der senkrechten Seite des Klappengehäuses (4) angeordnet ist, wo sich der Verbindungsteil (6) befindet.
  11. Brandschutzklappe nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die zweite Dichtung (13) auf der inneren Oberfläche der Ober- und der Unterseite des Klappengehäuses (4) sowie an dessen senkrechten Seite angeordnet ist, wobei sich diese Seite gegenüber der Anordnungsstelle des Verbindungsteils (6) befindet.
  12. Brandschutzklappe nach Anspruch 9 oder 10 oder 11, dadurch gekennzeichnet, dass es sich bei der zweiten Dichtung (2, 11, 13) um eine aufquellende Dichtung handelt.
  13. Brandschutzklappe nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass mindestens ein Klappenblatt (1) mit dem Sicherungsauslöser (7) verbunden ist, dessen andere Seite auf der Stütze (8) angeordnet ist, welche an dem Klappengehäuse (4) befestigt ist.
  14. Brandschutzklappe nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass mindestens ein Klappenblatt (1) mit dem Antriebsmotor (15) verbunden ist.
  15. Brandschutzklappe nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Stütze (12) als Winkelprofil ausgebildet ist und an dem Klappengehäuse (4) befestigt ist, wodurch die Bewegung der Klappenblätter beschränkt wird.
  16. Brandschutzklappe nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass sie mindestens ein Schutzgitter (17) umfasst.
EP11158318.3A 2010-03-15 2011-03-15 Brandschutzklappe Active EP2366435B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11158318T PL2366435T3 (pl) 2010-03-15 2011-03-15 Klapa przeciwpożarowa

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL390693A PL219662B1 (pl) 2010-03-15 2010-03-15 Przeciwpożarowa klapa odcinająca

Publications (2)

Publication Number Publication Date
EP2366435A1 EP2366435A1 (de) 2011-09-21
EP2366435B1 true EP2366435B1 (de) 2018-07-04

Family

ID=44117328

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11158318.3A Active EP2366435B1 (de) 2010-03-15 2011-03-15 Brandschutzklappe

Country Status (3)

Country Link
EP (1) EP2366435B1 (de)
LT (1) LT2366435T (de)
PL (2) PL219662B1 (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
PL3061503T3 (pl) 2015-02-27 2019-05-31 Grempco S A Klapa odcinająca
CN107185135A (zh) * 2017-06-08 2017-09-22 江苏立宇环境科技有限公司 可拆式阻火器
EP3603750A1 (de) 2018-07-31 2020-02-05 Grempco S.A. Rauchabzugsklappe und deren dichtung
KR102418803B1 (ko) * 2020-06-12 2022-07-11 주식회사 정민엔지니어링 제작이 간편하면서도 기밀유지가 우수한 방화댐퍼

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2118293B (en) * 1979-01-17 1984-04-11 Actionair Equip Fluid damper
GB2207233A (en) * 1987-05-29 1989-01-25 Nuaire Ltd Louvre ventilator smoke vents
EP0396785B1 (de) * 1989-03-28 1996-06-12 Rolf Kuhn GmbH Vorrichtung zum Absperren von Lüftungseinrichtungen
US6019679A (en) * 1998-11-09 2000-02-01 Lloyd Industries Fire and smoke damper

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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
LT2366435T (lt) 2018-11-12
PL390693A1 (pl) 2011-09-26
EP2366435A1 (de) 2011-09-21
PL2366435T3 (pl) 2018-12-31
PL219662B1 (pl) 2015-06-30

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