EP4212215A1 - Dichtung für eine brand- oder rauchschutzklappe - Google Patents

Dichtung für eine brand- oder rauchschutzklappe Download PDF

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Publication number
EP4212215A1
EP4212215A1 EP22151377.3A EP22151377A EP4212215A1 EP 4212215 A1 EP4212215 A1 EP 4212215A1 EP 22151377 A EP22151377 A EP 22151377A EP 4212215 A1 EP4212215 A1 EP 4212215A1
Authority
EP
European Patent Office
Prior art keywords
damper
fire
seal
flange
sealing
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.)
Pending
Application number
EP22151377.3A
Other languages
English (en)
French (fr)
Inventor
Roman Jedrzejewski
Dariusz 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
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 EP22151377.3A priority Critical patent/EP4212215A1/de
Publication of EP4212215A1 publication Critical patent/EP4212215A1/de
Pending legal-status Critical Current

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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

  • the object of the invention is sealing of fire damper or smoke control damper installed on the surface of structural compartment (without mortar and/or any auxiliary sealing materials) and dampers comprising this sealing.
  • shut-off damper comprising a body of rectangular cross-section with shut-off compartment installed in it and sealing of the said shut-off compartment, provided that all four side walls of the body are equipped with fire protective spacers, outer surfaces of which adhere the side walls of compartment in close position, provided that the seals are located on the fire protective spaces in a way that they protrude to the inside of the shut-off fire damper outside the outline of the body of the shut-off fire damper characterized in that the seal has the O-profile.
  • Application DE2523322 A1 reveals the fire damper of circular cross-section, intended for the air-conditioning system ducts crossing the fire wall.
  • a section of casing of the air duct comprises a rotary fire valve.
  • a section of damper casing comprises the holes distributed peripherally within the valve area. There are several rows of peripheral holes displaced against each other by a half of a distance between the hole centres. The holes in each row are distributed in equal distances, are round or angular with straight edges and formed by punching.
  • the purpose of the invention is to provide the new effective sealing for fire dampers or smoke control damper installed on the surface of structural compartment (without mortar and/or any auxiliary sealing materials) and dampers comprising this sealing, which is simple and easy to install.
  • the essence of the invention is sealing of fire damper or smoke control damper of circular cross-section characterized in that it comprises an additional flange installed on the outer part of the body, which consists of four semi-rings made of fire protective material fixed on the body of damper using a rim, provided that the connection of semi-rings is covered by an additional fire protective element installed in the bracket, while a flexible intumescent seal is placed between the damper and flange, and in addition the rim is equipped with bendable brackets used to install the fire damper or ventilation body to the structural compartment.
  • the flange rim is made of steel.
  • the rim is installed using at least one bracket.
  • the sealing is equipped in at least one rim bracket.
  • the fire damper or ventilation body is installed to the structural compartment using steel anchors and screws with washers.
  • the sealing according to the invention covers the area of adhesion of the flange to the structural compartment and consists of three seals: outer seal made of flexible material intumescent and stuck onto the flange surface, inner seal made of flexible intumescent material, installed in the groove of semi-rings made of fire protective material, and auxiliary seal made of intumescent material and placed under the inner seal.
  • the intumescent material is defided as a material swelling under the influence of temperature.
  • the sealing according to the invention covers the area of adhesion of the damper body to the mounting hole of the structural compartment and consists of three seals: the first seal made of flexible intumescent material and stuck onto the damper body at the connection with the flange, the second seal made of flexible intumescent material and stuck onto the first seal and the third seal made of flexible intumescent material and stuck onto the second seal, provided that the first, second and third seal stuck onto each other are deflected in a wedge shape using the electrical insulating self-extinguishing adhesive tape wound over the seals.
  • Another object of the invention is the fire damper or smoke control damper comprising a body of circular cross-section equipped with a flange and with a compartment, characterized in that it comprises an additional flange installed on the outer part of the body, which consists of four semi-rings made of fire protective material fixed on the outer part of the body using a rim, provided that the connection of semi-rings is covered by an additional fire protective element installed in the bracket, while the sealing according to the invention is placed between the damper and flange.
  • the driving axle of the damper according to the invention passes through the flange made of semi-rings and the damper according to the invention is equipped in axle sealing in the form of a sleeve made of flexible intumescent material.
  • the damper compartment is equipped in additional washers made of intumescent material,
  • the fire dampers are the shut-off fire dampers compliant with the requirements of the harmonized standard EN 15650, "Ventilation for buildings - fire dampers”.
  • Fire dampers are installed in the ventilation and air-conditioning systems at the passages of ventilation ducts through the fire compartments.
  • dampers remain open during standard operation of the installation.
  • the fire dampers close in order to separate the zone at risk, in effect of activation of the thermal trigger (fuse) or remote control signal, if the damper is equipped in the remotely controlled closing mechanism e.g. a rotary actuator.
  • the smoke control damper according to the invention are the dampers compliant with the requirements of the harmonised standard EN 12101-8, "Smoke and heat control systems - Part 8: Smoke control dampers ". These dampers are used in the fire ventilation systems and cannot be equipped with thermal trigger. During standard operation of the building, the dampers can be opened or closed, while during fire they change their position depending on the fire event scenario adopted for a given building.
  • the invention provides the following benefits:
  • fig. 1 presents the side view of fire damper according to the invention in the first variant of the invention
  • fig. 2 presents sealing according to the invention installed in the fire damper from fig. 1
  • fig. 3 presents the damper from fig. 1 in the front view; with particular focus on the fire protective element and bracket (detail A-A)
  • fig. 4 presents the side view of fire damper from fig. 1 with particular focus on the elements of damper installation with sealing according to the invention to the structural compartment
  • fig. 5 presents the side view of fire damper according to the invention in the second variant of the invention, where its driving axle passes through the flange made of semi-rings
  • fig. 6 presents sealing according to the invention installed in the fire damper from fig. 5 ;
  • fig. 7 presents the side view of fire damper from fig. 5 with particular focus on the elements of damper installation with sealing according to the invention to the structural compartment;
  • fig. 8 presents a section of fire damper according to the invention from fig. 7 , which presents the sealing of axle of this damper;
  • fig. 9 presents the installation elements of damper from fig. 7 and fig. 17 in the structural compartment in detail;
  • fig. 10 presents the damper from fig. 5 in the front view with particular focus on the fire protective element and bracket (detail B-B);
  • fig. 11 presents the side view of the first variant of the smoke control damper according to the invention;
  • fig. 12 presents a section of smoke control damper according to the invention from fig. 11 , which presents the sealing of axle of the said damper;
  • fig. 13 presents the front view of smoke control damper from fig. 11 with particular focus on the fire protective fire protectiveelement and bracket (detail A-A);
  • fig. 14 presents the side view of smoke control damper from fig. 11 with particular focus on the installation elements of damper with sealing according to the invention to the structural compartment;
  • fig. 15 presents the side view of smoke control damper according to the invention in the second variant of the invention, where its driving axle passes through the flange made of semi-rings;
  • fig. 16 presents the sealing according to the invention installed on the smoke control damper from fig. 15 ;
  • FIG. 17 presents the side view of smoke control damper from fig. 15 with particular focus on the installation elements of damper with sealing according to the invention to the structural compartment;
  • fig. 18 presents a section of smoke control damper from fig. 17 , which presents the sealing of axle of the said damper;
  • fig. 19 presents the smoke control damper from fig. 15 in the front view with particular focus on the fire protectiveelement and bracket (detail B-B).
  • the damper according to the invention comprising the sealing according to the invention is presented in the drawing, in which 1 - is fire damper; 1A - is smoke control damper; 2 - is semi-rings; 3 - is rim; 4 - is outer seal; 5 - is auxiliary seal; 6 - is inner seal; 7 - is third seal; 8 - is second seal; 9 - is tape; 10 - is first seal; 11 - is intumescent seal 12 - is bendable bracket; 13 - is structural compartment; 14 - is screw; 15 - is washer; 16 - is steel anchors; 17 - is axle sealing; 18 - is fire protective fire protectiveelement; 19 - is bracket; 20 - is second bracket; 21 - is washers.
  • the damper according to the invention comprising the sealing according to the invention is fire damper 1 of circular cross-section in the variant presented in fig. 1-4 , which is installed on the surface of structural compartment 13 without mortar an/or any other auxiliary sealing materials.
  • Fire damper 1 is equipped with additional flange installed on its body.
  • the flange consists of four semi-rings 2 made of fire protective fire protectivematerial installed on the body of fire damper 1 using rims 3 made e.g. of steel.
  • the semi-rings connection is covered by an additional fire protectiveelement 18 installed in the bracket 19 ( fig. 3 detail; A-A), provided that this bracket 19 plays also a retaining function for the body of fire damper 1 , semi-rings 2 and rim 3.
  • the similar function is played by the second bracket 20.
  • the steel rim 3 is equipped with bendable brackets 12 ( fig. 3 ) used to install the whole set (i.e. damper with sealing) using steel anchors 16 and screws 14 with washers 15 to structural compartment 13 , which is presented in fig. 4 and fig. 9 .
  • the sealing according to the invention located between the fire damper 1 and flange is ensured by flexible intumescent seal 11 and two sets of seals installed from the side of structural compartment 13.
  • the fire damper according to the invention is equipped, along with the flange, with two sets of seals installed from the side of structural compartment 13 , provided that the first one from the two sets of seals is used for sealing the area of adhesion of flange to the structural compartment 13 and consists of three seals:
  • the second set of seals is used to seal the body of fire damper 1 in the mounting hole of structural compartment 13 and consists of three seals:
  • the whole second set of seals stuck onto each other i.e. the set comprising the first seal 10 , second seal 8 and third seal 7 ) deflected in a wedge shape using the electrical insulating self-extinguishing tape wound over the seals 9.
  • the damper according to this embodiment is presented in fig. 5-10 .
  • the fire damper 1 comprises additional sealing of axle 17 (as presented in fig. 8 ) made in the form of sleeve of intumescent flexible material under the influence of temperature, ensuring tightness in normal conditions and during fire (in effect of thermal triggering).
  • the damper according to the invention comprising the sealing according to the invention is smoke control damper 1A of circular cross-section of the structure presented in fig. 11-14 , which is installed on the surface of structural compartment 13 without mortar an/or any other auxiliary sealing materials.
  • the smoke control damper 1A is equipped with additional flange installed on its body.
  • the flange consists of four semi-rings 2 made of fire protective material installed on the body of smoke control damper 1A using rims 3 made e.g. of steel.
  • the semi-rings connection is covered by an additional fire protective element 18 installed in the bracket 19 ( fig.
  • bracket 13 detach; A-A) provided that this bracket 19 plays also a retaining function for the body of smoke control damper 1A , semi-rings 2 and rim 3.
  • the similar function is played by the second bracket 20.
  • the steel rim 3 is equipped with bendable brackets 12 ( fig. 13 ) used for installation of the whole set (i.e. damper and sealing) using steel anchors 16 and screws 14 with washers 15 to the structural compartment 13 , which are presented in fig. 14 and fig. 9 .
  • the sealing according to the invention located between the smoke control damper 1A and the flange is ensured by flexible intumescent seal 11 and two sets of seals installed from the side of structural compartment 13 as presented in example 1 and in fig. 12 .
  • the structure of this variant of smoke control damper is presented in fig. 15-19 .
  • the smoke control damper 1A comprises additional sealing of axle 17 (as shown in fig. 18 ) made in the form of sleeve of flexible material intumescent under the influence of temperature, ensuring tightness in normal conditions and during fire (in effect of thermal triggering).
EP22151377.3A 2022-01-13 2022-01-13 Dichtung für eine brand- oder rauchschutzklappe Pending EP4212215A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22151377.3A EP4212215A1 (de) 2022-01-13 2022-01-13 Dichtung für eine brand- oder rauchschutzklappe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22151377.3A EP4212215A1 (de) 2022-01-13 2022-01-13 Dichtung für eine brand- oder rauchschutzklappe

Publications (1)

Publication Number Publication Date
EP4212215A1 true EP4212215A1 (de) 2023-07-19

Family

ID=80447685

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22151377.3A Pending EP4212215A1 (de) 2022-01-13 2022-01-13 Dichtung für eine brand- oder rauchschutzklappe

Country Status (1)

Country Link
EP (1) EP4212215A1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2523322A1 (de) 1975-05-27 1976-12-09 Trox Gmbh Geb Absperrorgan fuer brandabschnitte in luftkanaelen
GB2281859A (en) * 1993-09-15 1995-03-22 Dufaylite Dev Ltd Intumescent fire seal
GB2334770A (en) * 1998-02-26 1999-09-01 Laurence Keith Kovacs Intumescent collar
EP1960058B1 (de) * 2005-12-13 2010-06-23 Fläkt Woods AB Brandschutzklappensperrenflansch
DE102013013209A1 (de) * 2012-08-10 2014-03-06 Uta Kamleithner Brandschutzeinrichtung II

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2523322A1 (de) 1975-05-27 1976-12-09 Trox Gmbh Geb Absperrorgan fuer brandabschnitte in luftkanaelen
GB2281859A (en) * 1993-09-15 1995-03-22 Dufaylite Dev Ltd Intumescent fire seal
GB2334770A (en) * 1998-02-26 1999-09-01 Laurence Keith Kovacs Intumescent collar
EP1960058B1 (de) * 2005-12-13 2010-06-23 Fläkt Woods AB Brandschutzklappensperrenflansch
DE102013013209A1 (de) * 2012-08-10 2014-03-06 Uta Kamleithner Brandschutzeinrichtung II

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