EP3603750A1 - Rauchabzugsklappe und deren dichtung - Google Patents

Rauchabzugsklappe und deren dichtung Download PDF

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Publication number
EP3603750A1
EP3603750A1 EP18186661.7A EP18186661A EP3603750A1 EP 3603750 A1 EP3603750 A1 EP 3603750A1 EP 18186661 A EP18186661 A EP 18186661A EP 3603750 A1 EP3603750 A1 EP 3603750A1
Authority
EP
European Patent Office
Prior art keywords
damper
blades
sealing
insulating gasket
gasket
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
EP18186661.7A
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 EP18186661.7A priority Critical patent/EP3603750A1/de
Publication of EP3603750A1 publication Critical patent/EP3603750A1/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
    • A62C2/12—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
    • 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
    • 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
    • F24F13/15—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
    • 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

Definitions

  • the object of the invention is the sealing of a smoke control damper which is a multi-blade damper used in smoke control systems.
  • dampers should have definite fire resistance and smoke leakage class, which makes it possible to maintain the fire resistance of a wall or smoke control system ducts. These parameters are marked respectively EIS tt, where E -integrity, I-insulation, S - smoke leakage, tt - period during which all these parameters are maintained.
  • EIS tt fireproof materials are used for construction of dampers.
  • rubber or silicone sealings are used, as well as intumescent sealings, which ensure the integrity of structure during fire, when normal sealings lose their properties.
  • All times should be declared in minutes, using one of the times: 15, 20, 30, 45, 60, 90, 120, 180 or 240.
  • Resistance class is determined as follows:
  • the performance level used to define insulation shall be the mean temperature rise on the unexposed face, limited to 140 °C above the initial mean temperature, with the maximum temperature rise at any point limited to 180 °C above the initial mean temperature.
  • the leakage through the fire damper shall not exceed 200 m 3 /(m 2 ⁇ h), corrected to 20 °C at ambient temperature prior to the fire test, and shall not exceed 200 m 3 /(m 2 ⁇ h) corrected to 20 °C after the first 5 minutes of the fire test.
  • the classification should indicate whether the performance criteria are satisfied with fire impact on one side only or on both sides, and whether satisfying the performance criteria refers to horizontal or vertical position or to both positions. Additional symbols “i ⁇ o”, “o ⁇ i” or “i ⁇ o” should be used accordingly with “v e “ and/or "h o " in order to indicate position:
  • a fire damper is known from the description of the European patent application EP2366435 .
  • a damper according to this invention incorporates a body comprising a steel frame and blades of fire protection material comprising gaskets.
  • the damper is characterized in that in each blade there are two rotary axles mounted in two bearings located on opposite vertical sides of the body, and blades are connected with one another using a tie rod through sheet metal with opening, making it possible to transmit the drive between individual blades, and a spring is mounted to a spring bracket on one side and to a blade on the other side.
  • a smoke control fire damper is known from the American patent description US 6019679 .
  • the smoke control fire damper comprises a spring actuator rotating the blades (lamellas) between the "open” position and the "closed” position, when there is a condition of fire or smoke.
  • the damper can incorporate one or more blades, opened and closed using a linkage connector in order to ensure simultaneous operation of them both.
  • Flat coil springs remain under the tension of a realizer (such as a fusible one) and keep the blades in the "open” position. After a spring is released, a rotating system placed between the spring and the blades moves the blades to the closed position, thus blocking the flow of smoke and fire.
  • the blades can have seals in order to ensure tightness.
  • the multi-plane damper by AEROPRODUKT ZRT company of type BRK-J/EI90/M/HOT, is known on the basis of the information revealed on the web pagehttp://aero sang.hu/product-details/bsk-jei90gmhot/.
  • the sealings applied in this damper do not permit achieving the fire resistance as in the case of the damper known from the patent EP3061503 .
  • This damper has only been classified in the class S1000, which means in practice that this damper must not be used in systems of negative pressure greater than 1000 Pa and it guarantees smoke control in the conditions of fire at the pressure difference of 300 Pa - the fire resistance evaluation is performed at this pressure difference, and its duration is limited to 90 minutes, i.e.: EI 90 (v edw -h odw -i ⁇ ) S1000 C 10000 HOT400/30AAmulti.
  • the sealings applied in this damper have a characteristic way of swelling - with increasing temperature they create short and soft "fibres" which do not restrict the operation of blades for a period of at least 30 minutes, when the temperature is equal or less than 400°C.
  • such sealing has low resistance to high pressure differences, which results in limiting the fire resistance to the class S1000 and time 90 - i.e. the fire resistance evaluation has been performed at the pressure difference of 300 Pa and during the time of 90 minutes.
  • the essence of the invention is a smoke control damper consisting of a damper housing and permanently interconnected sections, and a shut-off blades of the damper, constituted by moving blades and an external blades, made of fire protection board, characterized in that it comprises a sealing of the moving blades, comprising a intumescent gasket and an insulating gasket, installed in grooves made along one longer edge of the blades, except for the external blade, and a sealing installed on the body on each of the four sides, comprising an insulating gasket.
  • the grooves are located beyond the axle of the blades.
  • the insulating gasket consists of insulating fire protection materials and intumescent under the influence of temperature.
  • the damper has a mounting for the insulating gasket with steel slats and aluminium rivets.
  • Another object of the invention is a smoke control damper consisting of a damper housing and permanently interconnected sections and a shut-off blades of the damper, constituted by moving blades and an external blade, made of fire protection board, characterized in that each of the blades comprises a sealing installed in grooves made along one longer edge and on each of the shorter sides, whereas the external blade comprises a sealing installed in grooves on each of the sides, where the sealing comprises a intumescent gasket and insulating gaskets.
  • the grooves are located beyond the axle of the blades.
  • the insulating gasket consists of insulating fire protection and intumescent materials.
  • the damper has a mounting for the insulating gasket with steel slats and aluminium rivets.
  • a smoke control damper is known from the European patent description EP3061503 , whose sealings in the case of a high temperature are intumescent and cause blocking of the blades, and as a result the damper cannot operate at the temperature of 400°C for 30 minutes - the damper cannot achieve the class HOT 400/30. For the same reason it is not possible to open a closed damper after subjecting it to a high temperature on the heated side (approximately 815°C), and thus it is not possible to open it after 25 minutes from starting the test, therefore the damper also cannot achieve the class MA.
  • fig. 1 presents a front view of the damper with closed blades for the form of execution having the sealing installed on the body
  • fig. 1.1 presents a front view of the damper with closed blades having the sealing installed on the blades only
  • fig. 2 presents a side view of the smoke control damper
  • fig. 3 presents a front view of the damper with closed blades from the side opposite to fig. 1
  • fig. 4 presents the cross-section I-I
  • fig. 5 presents the cross-section K-K of the damper incorporating a sealing on the body
  • fig. 5.1 presents the cross-section K-K of the damper incorporating a sealing installed on the blades only
  • fig. 6 presents the cross-section J-J
  • fig. 7 presents the cross-section L-L of the damper incorporating a sealing on the body
  • fig. 7.1 presents the cross-section L-L of the damper incorporating a sealing installed on the blades only
  • fig. 8 presents the cross-section M-M
  • fig. 9 presents an enlarged view of element A
  • fig. 10 presents an enlarged view of element B
  • fig. 11 presents the insulating gasket 37
  • fig. 12 presents the insulating gasket 27, assembly H (used on vertical sections, includes holes for bearings, used on the housing on sections H)
  • fig. 13 presents the insulating gasket 27, assembly L (used on sections L).
  • the elements comprised in the damper are analogous to the application EP3061503 . It is a housing (body) of the damper, made of steel sheet and incorporating permanently interconnected sections 1, 2, 3, and 4 which can be reinforced in the corners with corner pieces 8.
  • the shut-off blades of the damper are comprised by moving blades (guides) - one extreme (external) (9) and the remaining (10) made of fire protection board.
  • the object of the invention is the sealing of a smoke control damper used in smoke control systems, i.e.
  • the smoke control damper is capable of opening and closing for the period of 30 minutes in the conditions of temperature below 400°C - class "HOT 400/30" (High Operational Temperature) - making it possible for the position of the damper to be changed in these conditions by authorized persons and/or the possibility to open blades within 25 minutes from the start of a "standard" fire, when gases and smokes on the heated side have the temperature of approximately 815°C - class MA.
  • HAT 400/30 High Operational Temperature
  • two grooves 12 and 13 have been made in the upper part of blades, and the intumescent gaskets 38 under the influence of a high temperature, e.g. graphite ones, have been placed in them.
  • the intumescent gaskets have been shielded with the composite insulating gasket 37 ensuring protection of the swelling gaskets 38 against heating and swelling too quickly.
  • the external blade 9 is free of the sealing which comprises the intumescent gasket 38 and the insulating gasket 37 which are installed in the grooves 12 and 13.
  • This external blade is sealed "on the bottom” with the preceding blade and “on the top” with the insulating gasket 27 placed on the body, consisting of fire protection insulating and intumescent materials.
  • the body does not comprise the insulating gasket 27, it is only present on the blades, i.e. the blade 10 comprises the intumescent gasket 38 and the insulating gasket 37 and the insulating gasket 37' which are installed in the grooves 12 and 13 made along one longer edge and along both shorter sides, whereas the external blade 9 comprises sealing on each of the sides.
  • the composite insulating gaskets 37 consist of layers of metalized glass fabric 37A - one, two or more (depending on the available basis weight and weave) interconnected, advantageously using seams with the fireproof thread 37C - advantageously resistant to the temperature of 400°C, possibly with additional insulating layer e.g. of ceramic paper 37B.
  • the blades can move at the temperature of 400°C for at least 30 minutes.
  • the thermally activated intumescent gaskets 38 are swelling, and thus, in case blades are in the closed position, sealing of the closed blades occurs and it is possible to achieve the required fire resistance expressed with class EI 120 (v ew -h ow -i ⁇ o) S1500C mod HOT400/30 AAmulti.
  • a sealing according to the invention makes it also possible to open a damper after 25 minutes from the start of testing according to the standard EN 12101-8:2011, which means that it is possible to open the damper when gases and smokes on the heated side have the temperature of approximately 815°C. This ability makes it possible to achieve the fire resistance expressed with class EI 120 (v ew -h ow -i ⁇ o) S1500C mod HOT400/30 MAmulti.
  • sealings in the form of the gasket with "O" section 28, empty inside, of plastic, e.g. silicone, are glued on the insulating gaskets 37 installed on blades, with the purpose to ensure tightness at low temperatures.
  • plastic e.g. silicone
  • the insulating gaskets 37 consist of 3 parts interconnected with e.g. a seam made using the fireproof thread 37C - advantageously resistant to the temperature of at least 400°C. Extreme parts of the gaskets 37 are constricted under the reinforcements of blades 11, which makes it possible to stretch the gaskets 37, limiting the possibility of increasing the volume of the gaskets for a certain period making it possible for blades to rotate despite the increased ambient temperature.
  • the body of a damper according to the invention has also been covered by gluing from the inside with the composite insulating gaskets 27, which have been made of layers of metalized glass fabric 27A, ceramic paper 27B, sewn with the fireproof thread 27C and the intumescent gasket e.g. graphite one 27D, with the gaskets with "O" profile 28 of plastic e.g. silicone also glued on them.
  • the gaskets 27 are additionally fastened using known means, for example the steel slats 34 and the aluminium rivets 39.
  • the steel slats 34 fastening the insulting gaskets 27 effectively restrict the swelling of the thermally activated gaskets 27D, which makes it possible to open and close blades for at least 30 minutes, if the ambient temperature is equal or less than 400°C (class HOT 400/30) and which makes it possible to open blades of a closed damper after 25 minutes from the start of a standard fire (class MA) even at the temperature of 820°C.

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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)
EP18186661.7A 2018-07-31 2018-07-31 Rauchabzugsklappe und deren dichtung Pending EP3603750A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18186661.7A EP3603750A1 (de) 2018-07-31 2018-07-31 Rauchabzugsklappe und deren dichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18186661.7A EP3603750A1 (de) 2018-07-31 2018-07-31 Rauchabzugsklappe und deren dichtung

Publications (1)

Publication Number Publication Date
EP3603750A1 true EP3603750A1 (de) 2020-02-05

Family

ID=63713588

Family Applications (1)

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EP18186661.7A Pending EP3603750A1 (de) 2018-07-31 2018-07-31 Rauchabzugsklappe und deren dichtung

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Country Link
EP (1) EP3603750A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3916316A1 (de) * 2020-05-29 2021-12-01 Rf-Technologies nv Belüftungselement mit dichtungen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6019679A (en) 1998-11-09 2000-02-01 Lloyd Industries Fire and smoke damper
WO2006075045A1 (en) * 2005-01-17 2006-07-20 Fläkt Woods AB Smoke damper
EP2366435A1 (de) 2010-03-15 2011-09-21 Grempco S.A. Brandschutzklappe
EP2412409A1 (de) * 2010-07-28 2012-02-01 Posa S.P.A. Anschwellende Einzelkörperdichtung für Kalt- und Warmrauchdichtung, insbesondere für Brandschutzklappen
EP3061503A1 (de) 2015-02-27 2016-08-31 Grempco S.A. Brandschutzklappe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6019679A (en) 1998-11-09 2000-02-01 Lloyd Industries Fire and smoke damper
WO2006075045A1 (en) * 2005-01-17 2006-07-20 Fläkt Woods AB Smoke damper
EP2366435A1 (de) 2010-03-15 2011-09-21 Grempco S.A. Brandschutzklappe
EP2412409A1 (de) * 2010-07-28 2012-02-01 Posa S.P.A. Anschwellende Einzelkörperdichtung für Kalt- und Warmrauchdichtung, insbesondere für Brandschutzklappen
EP3061503A1 (de) 2015-02-27 2016-08-31 Grempco S.A. Brandschutzklappe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
AEROPRODUKT: "produkt brochure multi-blade fire damper BSK-J/EI90", 31 December 2014 (2014-12-31), http://aeroprodukt.hu/product-details/bsk-jei90gmhot/, pages 1 - 15, XP055546719, Retrieved from the Internet <URL:http://aeroprodukt.hu/wp-content/uploads/2018/06/Fire_sevices_BSKjeis90_2014_eng.pdf> [retrieved on 20190123] *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3916316A1 (de) * 2020-05-29 2021-12-01 Rf-Technologies nv Belüftungselement mit dichtungen

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