EP2229984A1 - Brandschutzklappe mit einem rechteckigen Durchschnitt und einer Abdichtung - Google Patents

Brandschutzklappe mit einem rechteckigen Durchschnitt und einer Abdichtung Download PDF

Info

Publication number
EP2229984A1
EP2229984A1 EP10156593A EP10156593A EP2229984A1 EP 2229984 A1 EP2229984 A1 EP 2229984A1 EP 10156593 A EP10156593 A EP 10156593A EP 10156593 A EP10156593 A EP 10156593A EP 2229984 A1 EP2229984 A1 EP 2229984A1
Authority
EP
European Patent Office
Prior art keywords
firewall
partition
cut
seal
frame
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
EP10156593A
Other languages
English (en)
French (fr)
Other versions
EP2229984B1 (de
Inventor
Andrzej Szarycki
Krzysztof Kaczmarek
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
Ciat Sp Z O O
CIAT Sp zoo
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 Ciat Sp Z O O, CIAT Sp zoo filed Critical Ciat Sp Z O O
Priority to PL10156593T priority Critical patent/PL2229984T3/pl
Publication of EP2229984A1 publication Critical patent/EP2229984A1/de
Application granted granted Critical
Publication of EP2229984B1 publication Critical patent/EP2229984B1/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
    • A62C2/12—Hinged dampers

Definitions

  • This invention relates to a sealing for a partition of a cut-off firewall of a rectangular cross-section, which upon closing prevents spreading out smoke and fire from a zone in which a fire hazard occurred.
  • a cut-off firewall is destined for all buildings in which the evacuation procedure is based on separating the zone in fire. It satisfies the requirements of all buildings in which separation of the zone being in fire is planned, among other means by remote-controllable closing firewalls in this zone and continuous operation of the ventilation and air-conditioning systems in other zones.
  • a cut-off firewall is used in the points in which ventilation or air-conditioning ducts pass through elements of the anti-fire separation system.
  • the firewall In case of fire the firewall enables the zone being in fire to be cut-off. After closing the partition, the firewall allows to preserve the resistance to fire of the element of the anti-fire separation system through which the ventilation or air-conditioning duct is led. Thereby other zones are protected against hot smoke and gases, and normal operation of the ventilation or air-conditioning system is possible.
  • a sealing comprising, directly or indirectly, a stop for the motion of the partition of the cut-off firewall, which may have a form of angle bars mounted inside the frame perpendicularly to the direction of the air flow.
  • rectangular firewalls most commonly contain partition stops having a form of an angle bar mounted to the frame which limit the motion of the partition and are used as an additional sealing element.
  • the so-called "retaining angle bars” are known, against which seals are pressed.
  • installing the stops increases the hydraulic resistance for the flowing air that involves the increase of the dimensions of the ventilators and the increase of the energy use for supplying them.
  • the stops themselves are also an additional source of the firewalls' own noise. They are a source of contamination of the microclimatic environment inside buildings and, obviously, they constitute an additional construction element increasing the costs of manufacturing a firewall.
  • the firewall During normal operation of the ventilation system the firewall is open (rests in the waiting position). The zone in which fire is detected becomes separated by closing the partition (i.e., moving the firewall to the safety position):
  • Closing the firewall is performed by releasing the potential energy stored in a tensioned spring of the closing mechanism. Additionally, the closing mechanism is equipped with a manual trigger that allows to close the firewall manually. In the case of closing the firewall remotely, reopening of the partition, i.e. restoring the waiting position is possible by manual tensioning the spring of the closing mechanism with a key or remotely by a cylinder. In the case of closing the firewall automatically by the action of the fuse-element, it is necessary to replace it first and then perform the above-described operations for opening the partition. The firewall exposed to fire is to be replaced. Signaling the position of the cut-off partition is ensured by marginal indicators.
  • the term "line of the firewall's frame” is to be understood as the inner surfaces of the frame and the term “external contour of the firewall” is to be understood as the external surfaces of the frame, i.e., the external contour of the frame.
  • the firewall is defined by the dimensions L (width) and H (height).
  • the names of spacers originate from these designations.
  • the spacer installed on the sidewalls H of the firewalls will be called spacer "H”
  • the spacer installed on the sidewalls L of the firewalls will be called spacer "L”.
  • the spacers are installed perpendicularly to each other such that with the firewall's partition being closed their external surfaces are adjacent to the partition, i.e., to its side surfaces.
  • the spacers are joined to each other at their ends, defining a thermal insulation layer for both parts of the firewall's frame.
  • seals are placed on a fireproof spacers such that they extend into the partition beyond a line of a firewall frame, and an external dimensions of the movable cut-off partition are smaller than a internal dimensions of the firewall frame.
  • the seal is a swelling seal.
  • the seal is a silicon seal of the O-ring type.
  • a inner surfaces of the fireproof spacers are situated below the line of the firewall frame.
  • the solution according to the invention ensures tightness in normal conditions, i.e. in ambient temperatures, as well as flame resistance, smoke tightness and insulating properties in fire conditions.
  • the invention is intended to be used in spots where ventilating ducts are passing through partitions of the fire separation system.
  • the firewall In case of fire the firewall enables the immediate separation of the zone in fire and preserves the fire-resistance of the construction firewall for 120 minutes, protecting other zones against hot smoke and gases. Fast and smooth closing, within 4 seconds, ensures immediate separation of the zone endangered by fire.
  • the design with no stops preventing the partition of the firewall increases its active area, thereby decreasing hydraulic resistance and its "own” noise.
  • Employing the inventive solution allows to control the appropriate operation before and after connecting the firewall to the system of fire detection.
  • Reduced hydraulic resistance of the firewall saves electricity used in buildings by lowering the desired compression of ventilators.
  • the new solution reduces the manufacture costs - additional construction elements, i.e., the stops are eliminated, the hydraulic resistance and the own noise are reduced, thereby the exploitation is cheaper - by using ventilators of a smaller compression, and the noise is lower.
  • the firewalls according to the invention are tight in normal conditions, i.e. in ambient temperatures, where to satisfy the EIS 120 class it is necessary to preserve the tightness below the value of 200 m 3 /h x m 2 of the firewall area at a differential pressure between both sides of the firewall, as well as in the conditions of a fire test, which means that during 120 minutes of the increase of temperature in the testing oven, according to the corresponding standard curve referenced in the currently valid standards, the leakage cannot exceed the value of 200 m 3 /h x m 2 of the firewall area.
  • a stop is shown, denoted with reference number 1, the stop being eliminated in the solution according to the invention.
  • Figs 2 -11 show construction details of the sealing of the firewall according to the invention.
  • Fig. 6 shows an O-ring type seal 6 in a free position with the firewall partition being open
  • Fig. 7 shows the same seal squeezed between the closed firewall partition and a spacer 3.
  • the figures show the design of the sealing according to the invention, wherein a swelling seal 2 and a silicon seal 6 are placed on protective spacers 3.
  • the spacer L made from a fire-resisting board is denoted with reference number 3
  • the spacer H also made from a fire-resisting board is denoted with reference number 4.
  • the cut-off partition 5 is mounted via a lever and connected with a tension member.
  • a drive mechanism M is mounted from outside to the frame 17 of the firewall.
  • the spacers extend for 5.5 mm into the firewall.
  • the seals 2 and 6 are placed on the surfaces of the spacers extending into the firewall frame.
  • the seals 2 are mounted to the spacers 3 and 4 by means of stitches along their whole length.
  • the dimensions of the cross-section of the seal 2 are 40 mm x 2 mm.
  • the seal 6 is glued to the seal 2 and additionally stitched with stitches to the spacers via the seals 6.
  • the seals mounted in neighboring spacers 3 and 4 are configured perpendicularly to each other, similarly to the spacers.
  • the spacers Due to extending the spacers into the firewall one reduces the risk of jamming the partition against the ventilation ducts, particularly for large dimensions of the firewalls (for H > 400 mm) because of protruding the open partition beyond the firewall frame 17.
  • the spacers have rectangular cross-section of recommended dimensions 40.0 x 36.5 mm.
  • the seal 6 is mounted on fireproof spacers 3, thereby eliminating the risk of accidental tearing the seal 6 off or tearing it off during transporting, installing or the start-up of the installation.
  • the seal 6 having the "O"-type profile is designed especially for investigation and is claimed as an industrial design. Mounting it does not require any additional mounting rail, as is the case in known designs, which should ensure permanent attachment of the seal but is an additional cost which is avoided in the design according to the invention.
  • the seal 2 extends above the line of the frame 17 for 2 mm and the seal 6, when non-squeezed, extends for ca. 10 mm into the firewall frame 17, thereby the dimensions of the firewall may be L: 22 mm x H: 24 mm, correspondingly.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Air-Flow Control Members (AREA)
  • Special Wing (AREA)
  • Building Environments (AREA)
EP10156593.5A 2009-03-17 2010-03-16 Brandschutzklappe mit einem rechteckigen Durchschnitt und einer Abdichtung Active EP2229984B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10156593T PL2229984T3 (pl) 2009-03-17 2010-03-16 Przeciwpożarowa klapa odcinająca o przekroju prostokątnym zawierająca przegrodę z uszczelnieniem

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL387520A PL215653B1 (pl) 2009-03-17 2009-03-17 Uszczelnienie przegrody odcinajacej klapy o przekroju prostokatnym

Publications (2)

Publication Number Publication Date
EP2229984A1 true EP2229984A1 (de) 2010-09-22
EP2229984B1 EP2229984B1 (de) 2019-06-26

Family

ID=42115905

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10156593.5A Active EP2229984B1 (de) 2009-03-17 2010-03-16 Brandschutzklappe mit einem rechteckigen Durchschnitt und einer Abdichtung

Country Status (5)

Country Link
EP (1) EP2229984B1 (de)
DK (1) DK2229984T3 (de)
LT (1) LT2229984T (de)
PL (2) PL215653B1 (de)
RU (1) RU2010109767A (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8435118U1 (de) * 1984-11-30 1985-03-07 Gebrüder Trox, GmbH, 4133 Neukirchen-Vluyn Feuerschutzklappe fuer lueftungsleitungen
WO2007068786A1 (en) * 2005-12-13 2007-06-21 Fläkt Woods AB Fire damper blade

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8435118U1 (de) * 1984-11-30 1985-03-07 Gebrüder Trox, GmbH, 4133 Neukirchen-Vluyn Feuerschutzklappe fuer lueftungsleitungen
WO2007068786A1 (en) * 2005-12-13 2007-06-21 Fläkt Woods AB Fire damper blade

Also Published As

Publication number Publication date
RU2010109767A (ru) 2011-09-27
PL215653B1 (pl) 2014-01-31
EP2229984B1 (de) 2019-06-26
PL2229984T3 (pl) 2019-12-31
LT2229984T (lt) 2019-11-11
PL387520A1 (pl) 2010-09-27
DK2229984T3 (da) 2019-10-07

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