EP1522329B1 - Clapet coupe-feu - Google Patents

Clapet coupe-feu Download PDF

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Publication number
EP1522329B1
EP1522329B1 EP03022364A EP03022364A EP1522329B1 EP 1522329 B1 EP1522329 B1 EP 1522329B1 EP 03022364 A EP03022364 A EP 03022364A EP 03022364 A EP03022364 A EP 03022364A EP 1522329 B1 EP1522329 B1 EP 1522329B1
Authority
EP
European Patent Office
Prior art keywords
flap
fire protection
protection closure
passage channel
closure according
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.)
Expired - Lifetime
Application number
EP03022364A
Other languages
German (de)
English (en)
Other versions
EP1522329A1 (fr
Inventor
Dieter Betz
Thomas Kolb
Manfred Metzler
Eckhard Steinicke
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.)
Betz Dieter
Kolb Thomas
METZLER Manfred
Steinicke Eckhard
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP03022364A priority Critical patent/EP1522329B1/fr
Priority to AT03022364T priority patent/ATE404254T1/de
Priority to ES03022364T priority patent/ES2312705T3/es
Priority to DE50310326T priority patent/DE50310326D1/de
Publication of EP1522329A1 publication Critical patent/EP1522329A1/fr
Application granted granted Critical
Publication of EP1522329B1 publication Critical patent/EP1522329B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the invention relates to a fire protection closure for flow channels, in particular for conveying, ventilation, exhaust ducts, wall openings or the like.
  • a fire protection closure for flow channels, in particular for conveying, ventilation, exhaust ducts, wall openings or the like.
  • a flap housing with a passage, which forms a portion of the flow channel in the assembled state of the fire protection closure, a pivotally mounted in the valve body Flap whose shape and size is adapted to the inner cross section of the passageway and a drive means for the flap according to the preamble of claim 1.
  • the invention further relates to a method for cleaning the Abdicht Schemees in a fire protection closure according to the preamble of claim 15th
  • Fire protection closures are how, for example, out DE 88 22 140 U1 . DE 41 14 296 A1 . DE 80 24 158 U1 or DE 39 32 868 A1 results, well known.
  • Such fire protection flaps serve to close in case of need, especially in case of fire or flue gas development a flow channel to prevent the spread of the fire or the flue gas.
  • the object of the present invention is in contrast to provide a fire damper and a method, or which ensure an adequate seal between the flap and passage even after prolonged use.
  • a key consideration of the present invention is that an insufficient seal between the flap and passage channel often due to contamination, especially deposits, which, depending on the application after a short, otherwise at least after longer periods of operation have set in the passage.
  • scraper strips are provided according to the invention, which free-area partially clear the passage channel when pivoting the plate.
  • the method is based accordingly on a free-strip of the passage channel when pivoting the flap. In any case, this free-striping sufficiently cleans the sealing area required for the sealing between the flap and the passage channel, so that a reliable sealing between flap and passage channel can be achieved.
  • the flap can be pivotally mounted in the region of one of its end faces about a bearing axis which is eccentric relative to the cross section of the passage channel and which can also be arranged completely displaced from the passage channel.
  • the flap is pivotally mounted about this central axis in the passageway.
  • the flap can be a rectangular basic shape with have four rectangular shape limiting rectilinear end faces.
  • the flap may also have a round or oval basic shape with a corresponding cross-sectional shape of the passage channel.
  • the flap and the passageway in a cross-sectional shape which corresponds to the cross-sectional shape of the flow channel to be respectively secured with the fire protection closure in order to cause as few disturbing effects as possible.
  • bearing means are arranged in eccentric storage on the flap housing such that the bearing axis is arranged outside the passage channel.
  • the flap housing in off-center storage of the flap on one side of the passage channel a niche, which is designed to receive the flap in the open state, on.
  • a niche which is designed to receive the flap in the open state, on.
  • the scraper strips according to the invention comprise lateral scraper strips which are formed on the lateral end faces, wherein the lateral scraper strips permanently cause free-flow at the passage channel at least in the region of the bearing axis of the flap during the entire pivoting path.
  • one or two frontal wiper strips are arranged on the end face (s) distally distanced from the bearing axis.
  • These scraper bars approach the inner walls of the passage channel only when approaching the closed position, so here a free stratification only shortly before reaching the closed position, but is achieved by obtaining a sufficient free stripe in Abdicht Scheme.
  • adjusting devices are furthermore provided in order to be able to set the gap width between wiper strips and the side surfaces. These adjusting devices can be designed in a particularly simple, yet expedient embodiment such that they comprise elongated holes formed in the wiper strips and the wiper strips can be fixed by means of screws to a suitable slot position on the flap.
  • niche sealing means are provided in an expedient development, which are designed and arranged such that when the flap is pivoted into the niche, a wall facing away from the passage is protected from contamination .
  • these niche sealing means may comprise a sealing fleece arranged between the wall of the passage channel and the flap.
  • circumferential smoke gas sealing means are furthermore provided on the end faces, which can be designed in particular in the form of a sealing lip in order to ensure a flue gas seal in the closed state of the flap.
  • a key consideration of the method according to the invention is that with pivoting of the flap, the passage channel is at least partially stripped and / or cleaned.
  • this partially free stripping or cleaning takes place in any case during pivoting of the flap as a result of an alarm signal and / or fire.
  • the area-wise free stripping or cleaning is also carried out in a closing operation in which there is no fire or alarm signal.
  • a free stripping or cleaning of the passage channel can also take place preventively.
  • areal free cleaning or cleaning is carried out at fixed intervals at least once. These intervals may be defined as annual, monthly or daily intervals or in any other suitable form.
  • the fire protection closure can be used for flow channels in a wide variety of applications and with a wide variety of directions, the fire damper is particularly suitable when used in one of the following applications.
  • the fire protection closure can be used in a first alternative field of use in flow channels of loaded with oils or fats air, especially in commercial kitchens. This is where particularly problematic contamination, in particular deposits on the inner walls of the passage channel.
  • Another application of the fire protection closure according to the invention is in air conditioning. Also in flow channels for air conditioning pollution, especially deposits, as they arise over a longer period of operation, also represent a significant problem.
  • a third field of application is flow channels in which materials, in particular particles are pneumatically conveyed.
  • materials in particular particles are pneumatically conveyed.
  • contamination and / or deposits mainly the problem that lie in case of failure or controlled shutdown of the pneumatic conveying the funded materials, especially particles in the flow channel and thus also can hinder the closing and / or sealing operation of the flap . Due to the free-striping of the sealing region according to the invention, an adequate sealing is also ensured here for the application of the fire-resistant closure.
  • a first embodiment of a fire protection closure is shown in a schematic sectional view.
  • the fire protection closure comprises a substantially cuboidal flap housing 11, which defines a rectilinear passage opening 14 which is open in each case at the ends and is provided on one side (in FIG Fig. 1 on the upper side) to form a niche 40 is extended.
  • a flap 12 is mounted pivotably about a bearing axis A a off-center relative to the flow cross-section of the passage channel.
  • the drive of the flap 12 via a known drive device, which engage on Anlenk wornen 22, 23.
  • the structure of the Anlenk Hughes, 23 and the drive are familiar to the expert and are therefore not shown here specifically.
  • the flap 12 is formed of fire-retardant material and has a matched to the inner cross-section of the passage 14 outer contour.
  • the right-angled flap 12 in the present embodiment has flue gas sealing means 39 on two opposite lateral end faces 15, 16 as well as on their end faces 17, 18 parallel to the off-center bearing axis A a , which are formed here in the form of a circumferential sealing lip.
  • the Rauchgasabdichtstoff 39 in particular the Sealing lip expediently consist of elastic material, in particular rubber. Alternatively, less elastic materials with good sealing effect, such as plastic, an asbestos braid or, for example, a glass filament fabric can be used. Conveniently, the Rauchgasabdichtstoff consist of a heat-resistant material.
  • the pivoting of the flap 12 a kannse mecanics free strip of the inner walls of the passage channel 14 at least in the for sealing effect necessary area between the flap 12 and passage 14.
  • the scraper strips 19 to 21 may be formed in any desired manner. Conveniently, they consist of a metal strip of sufficient thickness, the front edge of which comes to the free strip of the passage 14 is used. Instead of a right-angled edge, of course, other cutting or blade shapes can be considered in order to achieve the most expedient free stripping, in particular removal of deposits, etc.
  • Fig. 2 is the valve body 11 after Fig. 1 in a schematic view in front view (in a direction parallel to the flow direction of the passage channel 14) - with here scraper strips 19 to 21 shown oversized illustrated.
  • scraper strips 19 to 21 and the Rauchgasabdichtstoff 39 here as a sealing lip (in Fig. 2 not shown) are formed, the complete flow cross-section of the passage channel is closed at 12 perpendicular to the flow direction of the passage channel flap 12.
  • the passage channel 14 is smoke-tight even against slight overpressure or underpressure.
  • Fig. 3 the arrangement of the flap 12 in the passage 14 in the closed state is illustrated in more detail.
  • the circumferential sealing lip 39 here is clamped between two adjoining half-elements 41, 42, which form the flap 12.
  • the intumescent seals 30, 31 are attached directly to the flap 12. Only in the region of the off-center pivot axis A a facing end side 18 in the present embodiment in the niche 40, the Intumeszenzabdichtung 28, 29 are not arranged on the flap 12 but the flap housing 11, specifically in the corner 43 of the niche 40.
  • FIG. 4 is the flap 12 in the open position, that is shown in its completely pivoted out of the flow cross-section of the passageway 14 position.
  • a end face 17 and in the region of their lateral end faces 15, 16 is sealed against a passage 14 remote from the wall 37 of the niche 40 by the Abstreiferangn 19 to 21 and / or the circumferential sealing lip 39.
  • a niche sealant which is embodied concretely here as a sealing nonwoven 36, is also arranged between the passage channel 14 and the flap 12.
  • the sealing fleece 36 is flexible and can (as is apparent from the illustration in FIG Fig. 3 results) follow a pivoting movement of the flap 12.
  • the flap 12 serves at the same time to protect the opposite wall 37 of the niche 40 from contamination.
  • Fig. 5 is a simple, but expedient embodiment of adjusting the scraper strips 19, 20, 21 illustrated on a flap 12.
  • the wiper strips 19, 20, 21 have slots 35, with the aid of which when mounting the scraper strips 19, 20, 21 on the flap 12 by means of screws 34, the exact position, in particular the supernatant of the scraper strips 19, 20, 21 set against the flap 12.
  • FIGS. 6 and 7 an alternative embodiment of a fire protection closure is illustrated in a schematic representation.
  • the flap housing 11 here has a passage channel 14 with a circular cross-section.
  • a likewise circular flap 12 is pivotally mounted about a central axis A s . Outside a circumferential around the circular flap 12 scraper strip 21 'is provided.
  • other cross-sectional shapes such as rectangular or square cross-sectional shapes for flap 12 and passage 14 may be considered, wherein in the pivoted by 90 ° open position, the flap 12 always remains in the flow cross-section of the passage 14 and a flow obstacle forms.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Special Wing (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Air-Flow Control Members (AREA)
  • Lift Valve (AREA)

Claims (21)

  1. Obturateur coupe-feu pour gaines d'écoulement, en particulier gaines d'aération, d'évacuation, d'extraction ou orifices muraux ou similaires, comprenant :
    - un boîtier de clapet (11) avec une gaine de passage (14) formant un segment de la gaine d'écoulement lorsque l'obturateur coupe-feu est installé,
    - un clapet (12) monté de façon à pouvoir pivoter dans le boîtier de clapet (11), et dont la forme et la taille sont adaptées à la section intérieure de la gaine de passage (14), et
    - un dispositif d'entraînement du clapet (12) pour fermer le clapet (12) en cas de besoin,
    caractérisé en ce que
    le clapet (12) présente, au moins sur une face (15 à 17) tournée vers la gaine de passage, une lame racleuse (19 à 21) constituée de façon à dégager en raclant par zones la gaine de passage (14) lors du pivotement du clapet (12).
  2. Obturateur coupe-feu selon la revendication 1,
    caractérisé en ce que
    le clapet (12) est monté au niveau d'une de ses faces (15 à 18) de façon à pouvoir pivoter autour d'un axe (Aa) décentré par rapport à la section de la gaine de passage (14).
  3. Obturateur coupe-feu selon la revendication 1,
    caractérisé en ce que
    le clapet (12) est constitué symétriquement par rapport à un axe médian (As) et monté de façon à pouvoir pivoter autour de cet axe médian (As).
  4. Obturateur coupe-feu selon l'une des revendications 1 à 3,
    caractérisé en ce que
    le clapet (12) présente une forme de base rectangulaire avec quarte faces
    frontales (15 à 18) délimitant la forme rectangulaire.
  5. Obturateur coupe-feu selon la revendication 3,
    caractérisé en ce que
    le clapet (12) présente une forme de base ronde ou ovale.
  6. Obturateur coupe-feu selon l'une des revendications 1 à 5,
    caractérisé en ce que
    des dispositifs d'appui (32, 33) sont disposés sur le boîtier de clapet (11) de telle façon que l'axe de pivotement (Aa) soit disposé en dehors de la gaine de passage (14).
  7. Obturateur coupe-feu selon l'une des revendications 1 à 6,
    caractérisé en ce que
    le boîtier de clapet (11) forme sur une face de la gaine de passage (14) une niche (40) destinée à loger le clapet (12) en état d'ouverture.
  8. Obturateur coupe-feu selon la revendication 7,
    caractérisé en ce que
    le clapet (12) est complètement éclipsé de la gaine de passage (14), et en particulier logé dans la niche (40), lorsqu'il est en état ouvert.
  9. Obturateur coupe-feu selon l'une des revendications 1 à 8,
    caractérisé en ce que
    les lames racleuses (19 à 21) sont constituées en lames racleuses latérales (19, 20) au moins sur les faces latérales (15, 16), les lames racleuses latérales (19, 20) produisant en permanence un dégagement par raclage de la gaine de passage (14) au niveau de l'axe d'appui (Aa, As) de toute la course de pivotement.
  10. Obturateur coupe-feu selon l'une des revendications 1 à 9,
    caractérisé en ce que
    une ou deux lames racleuses frontales (21, 21') sont également disposées sur la face frontale ou les faces frontales (17, 18) se trouvant à distance distale de l'axe de pivotement (Aa, As)
  11. Obturateur coupe-feu selon l'une des revendications 1 à 10,
    caractérisé en ce que
    des dispositifs d'ajustage (34, 35) sont prévus pour pouvoir régler la largeur de fente entre les lames racleuses (19 à 21, 21') et les faces frontales (15 à 18).
  12. Obturateur coupe-feu selon l'une des revendications 1 à 11,
    caractérisé en ce que
    des éléments d'étanchéité de niche (36) sont prévus, qui sont constitués et disposés de telle façon qu'une paroi (37) opposée à la gaine de passage (14) soit protégée contre les salissures lorsque le clapet (12) est logé dans la niche (40).
  13. Obturateur coupe-feu selon l'une des revendications 1 à 12,
    caractérisé en ce que
    sur ou au niveau d'au moins une face frontale, de préférence sur ou au niveau de toutes les faces frontales (15 à 18), des joints intumescents (28 à 31) sont en outre prévus, lesquels gonflent et assurent ainsi l'étanchéité en cas de dépassement d'une température prédéterminée, en particulier en cas d'incendie.
  14. Obturateur coupe-feu selon l'une des revendications 1 à 13,
    caractérisé en ce que
    sur ou au niveau d'au moins une face frontale, de préférence sur ou au niveau de toutes les faces frontales (15 à 18), des éléments d'étanchéité aux fumées sont en outre prévus, lesquels peuvent en particulier être constitués sous forme de lèvre d'étanchéité (39), pour garantir une étanchéité aux fumées en état fermé du clapet (12).
  15. Procédé de nettoyage de la zone d'étanchéité dans un obturateur coupe-feu pour gaines d'écoulement, en particulier selon l'une des revendications 1 à 14, l'obturateur coupe-feu comprenant un boîtier de clapet (11) avec une gaine de passage (14) formant un segment de la gaine d'écoulement lorsque l'obturateur coupe-feu est installé, et un clapet (12) monté de façon à pouvoir pivoter dans le boîtier de clapet (11), et dont la forme et la taille sont adaptées à la section intérieure de la gaine de passage (14),
    caractérisé en ce que
    la gaine de passage (14) est dégagée par raclage, au moins par zones, au cours du
    pivotement du clapet (12).
  16. Procédé selon la revendication 15,
    caractérisé en ce que
    le raclage par zones a lieu en tous les cas lors du pivotement du clapet (12) suite à un signal d'alarme, ou en cas d'incendie.
  17. Procédé selon la revendication 15 ou 16,
    caractérisé en ce que
    le raclage par zones a lieu même en cas d'une fermeture du clapet (12) intervenant en l'absence d'incendie ou de signal d'alarme.
  18. Procédé selon l'une des revendications 15 à 17,
    caractérisé en ce que
    le raclage par zones est effectué au moins une fois à intervalle fixe, par exemple à intervalle annuel, mensuel ou quotidien.
  19. Utilisation d'un clapet coupe-feu selon l'une des revendications 1 à 14 dans des gaines d'écoulement d'air chargé d'huiles et de graisses, en particulier des gaines de ventilation de cuisines professionnelles.
  20. Utilisation d'un clapet coupe-feu selon l'une des revendications 1 à 14 dans des gaines d'écoulement dans le domaine de la climatisation.
  21. Utilisation d'un clapet coupe-feu selon l'une des revendications 1 à 14 dans des gaines d'écoulement par lesquels des matières, en particulier des particules, sont extraites pneumatiquement.
EP03022364A 2003-10-06 2003-10-06 Clapet coupe-feu Expired - Lifetime EP1522329B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP03022364A EP1522329B1 (fr) 2003-10-06 2003-10-06 Clapet coupe-feu
AT03022364T ATE404254T1 (de) 2003-10-06 2003-10-06 Brandschutz-verschluss
ES03022364T ES2312705T3 (es) 2003-10-06 2003-10-06 Compuerta cortafuegos.
DE50310326T DE50310326D1 (de) 2003-10-06 2003-10-06 Brandschutz-Verschluss

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03022364A EP1522329B1 (fr) 2003-10-06 2003-10-06 Clapet coupe-feu

Publications (2)

Publication Number Publication Date
EP1522329A1 EP1522329A1 (fr) 2005-04-13
EP1522329B1 true EP1522329B1 (fr) 2008-08-13

Family

ID=34306833

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03022364A Expired - Lifetime EP1522329B1 (fr) 2003-10-06 2003-10-06 Clapet coupe-feu

Country Status (4)

Country Link
EP (1) EP1522329B1 (fr)
AT (1) ATE404254T1 (fr)
DE (1) DE50310326D1 (fr)
ES (1) ES2312705T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010056392B4 (de) * 2010-12-28 2015-02-19 Gert Bartholomäus Einseitig schwenkbar gelagerte Brandschutzklappe mit verbesserter Dichtungswirkung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT313068B (de) * 1970-06-20 1974-01-25 Trox Ges Mit Beschraenkter Geb Sperrvorrichtung für Brandabschnitte in Lüftungs- und Klimaanlagen
DE2622147C2 (de) * 1976-05-19 1981-12-17 Schako Metallwarenfabrik Ferdinand Schad Kg, 7201 Kolbingen Feuerschutzeinrichtung für Luftkanäle
CH643912A5 (de) 1979-12-05 1984-06-29 Hesco Pilgersteg Ag Brandschutzklappe.
CH658893A5 (en) 1983-07-06 1986-12-15 Staefa Ventilatoren Fire-protection fixture
CS271622B1 (en) 1988-10-05 1990-10-12 Marek Jiri Safety cut-off fire flap with low air resistance
AU624288B2 (en) * 1990-04-18 1992-06-04 Jackson International Pty. Limited Seal for fire dampers
DE4114296A1 (de) 1991-05-02 1992-11-05 Schako Metallwarenfabrik Brandschutzklappe
FR2753104B1 (fr) * 1996-09-11 1998-10-30 Aldes Aeraulique Systeme d'etancheite pour dispositif d'obturation d'un conduit de ventilation, notamment pour clapet coupe-feu ou trappe de desenfumage

Also Published As

Publication number Publication date
ATE404254T1 (de) 2008-08-15
DE50310326D1 (de) 2008-09-25
ES2312705T3 (es) 2009-03-01
EP1522329A1 (fr) 2005-04-13

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