EP1688164B1 - Clapet coupe-feu pour canaux d'écoulement - Google Patents

Clapet coupe-feu pour canaux d'écoulement Download PDF

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Publication number
EP1688164B1
EP1688164B1 EP05002116A EP05002116A EP1688164B1 EP 1688164 B1 EP1688164 B1 EP 1688164B1 EP 05002116 A EP05002116 A EP 05002116A EP 05002116 A EP05002116 A EP 05002116A EP 1688164 B1 EP1688164 B1 EP 1688164B1
Authority
EP
European Patent Office
Prior art keywords
flap
fire protection
protection closure
spring mechanism
shaft
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
EP05002116A
Other languages
German (de)
English (en)
Other versions
EP1688164A1 (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 AT05002116T priority Critical patent/ATE413214T1/de
Priority to DE502005005873T priority patent/DE502005005873D1/de
Priority to PL05002116T priority patent/PL1688164T3/pl
Priority to EP05002116A priority patent/EP1688164B1/fr
Priority to ES05002116T priority patent/ES2317090T3/es
Publication of EP1688164A1 publication Critical patent/EP1688164A1/fr
Application granted granted Critical
Publication of EP1688164B1 publication Critical patent/EP1688164B1/fr
Active 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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/24—Operating or controlling mechanisms
    • A62C2/246—Operating or controlling mechanisms having non-mechanical actuators
    • A62C2/248—Operating or controlling mechanisms having non-mechanical actuators pneumatic

Definitions

  • the invention relates to a fire protection closure for flow channels, in particular ventilation, extraction, delivery channels or wall openings or the like comprising a flap housing with a passage channel which forms a portion of the flow channel in the mounted state of the fire protection closure, one in the flap housing pivotable about a pivot axis mounted flap whose shape and size is adapted to the inner cross section of the passage channel, and a drive means for the flap to close the flap when needed, and a corresponding method for closing a flow channel.
  • Fire dampers are already known, cf. DE 26 22 147 or DE-G 83 22 140 , Conventionally, such flaps are spent by a reliable working gear unit, which is operatively connected to an electric motor, if necessary, from an open position to a closed position.
  • the object of the present invention is in contrast to propose a drive device for a fire protection closure, in which the closing operation is effected even more reliable.
  • a core idea of the present invention is to design the drive device as a spring device and further to provide an electromagnet which holds the flap in the current-energized state against an opening exerted by the spring device bias in the open position.
  • the energy required for the closing operation of the flap is stored in a spring means and provided only a triggering device in the form of an electromagnet, which triggers the closing operation, if necessary.
  • the spring device acts on the flap so that the force exerted by it on the flap, in particular the force exerted on the shaft or stub shaft torque in the open position of the flap is less than in the pivoted position of the flap near the closed position.
  • the structure proposed here has a number of advantages. First, the construction is much easier, less expensive and at the same time less susceptible to failure. In addition, when using an electromagnet as a triggering device, the closing of the flap is not dependent on whether in closing request, especially in case of fire, also an adequate power supply for the conventionally given for closing used electric motor; Rather, the closing process is automatically triggered when using an electromagnet when the power supply is interrupted.
  • the flap does not necessarily have to be driven by exactly one spring device. Rather, two (or more) spring devices, for example one spring device per side of the flow channel, may be provided.
  • the spring device is designed as a gas pressure spring.
  • a gas spring is here specifically understood an arrangement consisting of a cylinder and a piston, wherein the piston is linearly displaceable in the cylinder and between the cylinder and piston, a gas volume is effective, which is compressible to achieve the invention desired bias. The energy required to close the door is released by expansion of the compressed gas.
  • spring devices such as mechanical or hydraulic spring devices can be used.
  • the electromagnet may optionally be arranged on the flap or on the flap housing, whereby an arrangement on the flap housing is easier to realize and accordingly preferred.
  • the flap is positioned in the flap housing such that its pivot axis is disposed in an upper position of the flap housing or the passageway in such a manner that the force of gravity upon deactivation of the electromagnet by the spring device supported closing operation of the flap.
  • the spring device does not have to move the flap at least against gravity.
  • the invention can be applied to various types of flaps, namely on the one hand to those flaps which are symmetrical to a central axis and are pivotally mounted about this central axis.
  • the invention is preferably applicable to such flaps, which are mounted in the region of one of its end faces pivotable about an eccentric relative to the cross section of the passage channel bearing axis.
  • the flap has a rectangular basic shape with four end faces delimiting the rectangular shape.
  • the flap can also have a different shape, in particular a round or oval basic shape.
  • bearing devices are arranged on the flap housing such that the pivot axis extends outside the passage channel.
  • the flap housing forms on a side surface of the passage channel a niche for receiving the flap in the open state.
  • a niche for receiving the flap in the open state.
  • niche sealing means which are designed and arranged such that, when the flap is pivoted into the niche, a wall facing away from the passage channel is protected against contamination.
  • niche sealing means may comprise a sealing fleece arranged between the wall of the passage channel and the flap.
  • circumferential flue gas sealing means are furthermore provided on the end faces of the flap, 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.
  • the flap can have a scraper strip at least at one end face facing the passage channel, which scraper strip is designed for the free passage of the passage channel when pivoting the flap.
  • a scraper strip can accordingly be designed as a lateral scraper strip at least on the lateral end faces, in which case these lateral scraper strips in the region of the pivot axis over the entire pivoting path permanently cause a free stripe on the passage channel.
  • one or two frontal wiper strips can also be arranged on or at the ends distally spaced from the pivot axis.
  • the spring device is arranged outside the passage channel in order not to impair the flow cross section here.
  • the spring device engages in the flat region of the flap, at its side or end edges. According to the invention, the torque required to close the flap is transmitted to the shaft or to one or both stub shafts of the flap by the spring device.
  • the shaft or the shaft stub associated with the spring device may comprise a lever piece which is connected in a torque-locking manner to the shaft or stub shaft.
  • the lever piece can also be integrally formed on the shaft or the stub shaft.
  • the spring means acts so that the applied torque in the open position of the flap is minimal.
  • the spring device engages in such a way that the torque in the closed position or in a pivoted position near the closed position is maximum.
  • the closing operation is effected so that the flap, starting from its open position is pivoted with increasing angular velocity in the closed position.
  • the fire protection closure for flow channels can be used in a wide variety of applications and with a wide variety of objectives, so the fire protection closure according to the invention is particularly suitable for use 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.
  • Another application of the fire protection closure according to the invention is in air conditioning.
  • a third field of application is flow channels in which materials, in particular particles are pneumatically conveyed.
  • the fire protection closure according to the invention can be used when it comes down to the simplest possible, störunan stricten or manufacturing technology favorable structure. Another field of application is given where an intact power supply can not be guaranteed with sufficient safety when closing a request.
  • Fig. 1 is an embodiment of the fire protection closure according to the invention in a schematic sectional view and in Fig. 2 in a schematic front view, each shown in the closed position.
  • the Fire protection closure here comprises a substantially cuboid valve housing 11, which defines a rectilinear passage, open at each end passage channel 14 and on one side (in Fig. 1 on the upper side) to form a niche 19 is extended.
  • a flap 12 is pivotally mounted about a relative to the flow cross-section of the passage channel 14 off-center pivot axis A and in the Fig. 1 and 2 in the closed position, ie the cross-section of the passage channel 14 blocking shown.
  • the flap 12 is pivotally mounted with stub shafts 16, 17 in the valve housing 11 about the pivot axis A.
  • a lever member 18 On one of the two stub shafts 16, 17, a lever member 18 is arranged torque-locking, on the other side as a drive device for the flap 12, a gas spring 13 engages.
  • the gas spring engages on the one hand at a pivot point 20 on the valve body 11, where it is held pivotable about a sufficient angular range.
  • a second articulation point 21 is provided on the stub shaft 16 opposite end of the lever piece, where the other end of the gas spring 13 engages.
  • the gas spring 13 In the Fig. 1 and 2 the gas spring 13 is shown in its expanded state, ie, an inner piston rod 22 is pushed out of an outer cylinder 23 by the enclosed, expanded gas volume and has pivoted over the lever piece 18, the flap 12 in the closed position.
  • Fig. 3 is the present embodiment of the fire protection closure according to the invention in a schematic sectional view and in Fig. 4 in a schematic front view, each illustrated in the open position.
  • the flap 12 is pivoted (here upwards) into the recess 19 formed on the flap housing 11, so that the flap 12 is moved out of the flow cross-section of the flow channel as a whole.
  • the flap 12 is held by an electromagnet 15 against the bias of the al gas spring spring device formed.
  • the flap 12 may be formed of a material which itself causes a magnetic attraction to the electromagnet 15.
  • a cooperating with the electromagnet 15 counterpart may be arranged at a corresponding position on the flap 12.
  • Intumeszenzabdichtungen (not shown) are expediently provided which swell in the event of fire and prevent pivoting back of the flap 12 from the closed position with sufficient certainty.
  • a locking lock can be provided which prevents the flap 12 from pivoting back, in particular when only a smoke gas impairment is to be averted.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Air-Flow Control Members (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Safety Valves (AREA)

Claims (15)

  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 dans le boîtier de clapet (11) de façon à pouvoir pivoter autour d'un axe de pivotement (A) et dont la forme et la taille sont adaptées à la section transversale intérieure de la gaine de passage (14), et
    - un dispositif d'entraînement du clapet (12) pour fermer le clapet (12) en cas de besoin,
    le dispositif d'entraînement étant conçu comme dispositif à ressort (13), et incluant en outre un électroaimant (15) qui, lorsqu'il est sous tension, maintient le clapet (12) en position d'ouverture en s'opposant à une précontrainte exercée par le dispositif à ressort (13),
    caractérisé en ce que
    le dispositif à ressort (13) agit de telle façon que le couple qu'il exerce sur l'arbre ou le bout d'arbre en position d'ouverture du clapet (12) est moindre que dans une position de pivotement proche de la position de fermeture du clapet (12).
  2. Obturateur coupe-feu selon la revendication 1,
    caractérisé en ce que
    le dispositif à ressort est conçu comme ressort pneumatique (13).
  3. Obturateur coupe-feu selon la revendication 1 ou 2,
    caractérisé en ce que
    l'électroaimant (15) est disposé au boîtier de clapet (11).
  4. Obturateur coupe-feu selon l'une des revendications 1 à 3,
    caractérisé en ce que
    le clapet (12) est logé de telle manière dans le boîtier de clapet (11) que l'axe de pivotement (A) du clapet (12) est disposé dans une zone du boîtier de clapet (11) / de la gaine de passage (14) qui se trouve en haut en position de montage et que la force de pesanteur assiste ainsi l'opération de fermeture du clapet (12) provoquée par le dispositif à ressort (13) lorsque l'électroaimant (15) est désactivé.
  5. Obturateur coupe-feu selon l'une des revendications 1 à 4,
    caractérisé en ce que
    l'axe de pivotement (A) est défini par un arbre continu ou par deux bouts d'arbre latéraux (16, 17) par lequel / lesquels le clapet (12) est logé dans le boîtier de clapet, le dispositif à ressort (13) agissant sur l'arbre ou sur l'un des bouts d'arbre (16, 17).
  6. Obturateur coupe-feu selon la revendication 5,
    caractérisé en ce que
    le dispositif à ressort (13) est disposé à l'extérieur de la gaine de passage (14).
  7. Obturateur coupe-feu selon la revendication 5 ou 6,
    caractérisé en ce que
    le dispositif à ressort (13) agit entre l'arbre / les bouts d'arbre (16, 17) et le boîtier de clapet (11).
  8. Obturateur coupe-feu selon l'une des revendications 5 à 7,
    caractérisé en ce que
    sur l'arbre ou sur le bout d'arbre (16, 17) associé au dispositif à ressort (13), est disposé un élément levier (18) à transmission de couple, en particulier formé d'une seule pièce, sur lequel agit le dispositif à ressort (13).
  9. Obturateur coupe-feu selon l'une des revendications 1 à 8,
    caractérisé en ce que
    le couple exercé par le dispositif à ressort (13) sur l'arbre ou le bout d'arbre (16, 17) est minimal en position d'ouverture du clapet (12).
  10. Obturateur coupe-feu selon l'une des revendications 1 à 9,
    caractérisé en ce que
    le couple exercé par le dispositif à ressort (13) sur l'arbre ou le bout d'arbre (16, 17) est maximal en position de fermeture du clapet ou dans une position de pivotement proche de la position de fermeture du clapet (12).
  11. Procédé de fermeture d'une gaine d'écoulement, en particulier d'une gaine d'aération, d'évacuation, d'extraction ou d'un orifice mural, au moyen d'un 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, un clapet (12) monté dans le boîtier de clapet (11) de façon à pouvoir pivoter autour d'un axe de pivotement (A) et dont la forme et la taille sont adaptées à la section transversale intérieure de la gaine de passage (14), et un dispositif d'entraînement du clapet (12) pour fermer le clapet (12) en cas de besoin, le clapet (12) étant, en fonctionnement normal, maintenu dans une position d'ouverture moyennant un électroaimant (15) et, en cas de demande de fermeture, en particulier en cas d'incendie, l'électroaimant (15) étant désactivé et le clapet (12) étant amené en position de fermeture au moyen d'un dispositif à ressort (13) mis sous précontrainte,
    caractérisé en ce que
    le dispositif à ressort (13) agit de telle façon que le couple qu'il exerce sur l'arbre ou le bout d'arbre en position d'ouverture du clapet (12) est moindre que dans une position de pivotement proche de la position de fermeture du clapet (12).
  12. Procédé selon la revendication 11,
    caractérisé en ce que
    l'opération de fermeture est déclenchée de telle manière que le clapet (12), à partir de sa position d'ouverture, est pivoté avec une vitesse angulaire croissante vers sa position de fermeture.
  13. Utilisation d'un obturateur coupe-feu selon l'une des revendications 1 à 10 dans des gaines d'écoulement d'air chargé d'huiles et de graisses, en particulier des gaines de ventilation de cuisines professionnelles.
  14. Utilisation d'un obturateur coupe-feu selon l'une des revendications 1 à 10 dans des gaines d'écoulement dans le domaine de la climatisation.
  15. Utilisation d'un obturateur coupe-feu selon l'une des revendications 1 à 10 dans des gaines d'écoulement par lesquels des matières, en particulier des particules, sont convoyées pneumatiquement.
EP05002116A 2005-02-02 2005-02-02 Clapet coupe-feu pour canaux d'écoulement Active EP1688164B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT05002116T ATE413214T1 (de) 2005-02-02 2005-02-02 Brandschutz-verschluss für strömungskanäle
DE502005005873T DE502005005873D1 (de) 2005-02-02 2005-02-02 Brandschutz-Verschluss für Strömungskanäle
PL05002116T PL1688164T3 (pl) 2005-02-02 2005-02-02 Zamknięcie przeciwpożarowe dla kanałów przepływowych
EP05002116A EP1688164B1 (fr) 2005-02-02 2005-02-02 Clapet coupe-feu pour canaux d'écoulement
ES05002116T ES2317090T3 (es) 2005-02-02 2005-02-02 Compuerta cortafuegos para conductos de paso.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05002116A EP1688164B1 (fr) 2005-02-02 2005-02-02 Clapet coupe-feu pour canaux d'écoulement

Publications (2)

Publication Number Publication Date
EP1688164A1 EP1688164A1 (fr) 2006-08-09
EP1688164B1 true EP1688164B1 (fr) 2008-11-05

Family

ID=34933555

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05002116A Active EP1688164B1 (fr) 2005-02-02 2005-02-02 Clapet coupe-feu pour canaux d'écoulement

Country Status (5)

Country Link
EP (1) EP1688164B1 (fr)
AT (1) ATE413214T1 (fr)
DE (1) DE502005005873D1 (fr)
ES (1) ES2317090T3 (fr)
PL (1) PL1688164T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009019917A1 (de) * 2009-05-04 2010-11-25 Lampertz Gmbh & Co. Kg Sicherheitsraum
DE102010056392B4 (de) * 2010-12-28 2015-02-19 Gert Bartholomäus Einseitig schwenkbar gelagerte Brandschutzklappe mit verbesserter Dichtungswirkung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH556175A (de) * 1972-09-27 1974-11-29 Securiton Ag Anlage zum automatischen oeffnen von treppenhausfenstern bei rauchentwicklung.
DE2259656A1 (de) * 1972-12-01 1974-06-20 Nordluft Norddeutsche Ges Fuer Mit einer schwenkbaren, unter der wirkung einer schliesskraft stehenden feuerschutzklappe ausgestattetes einbaugehaeuse fuer lufttechnische anlagen
FR2341732A1 (fr) * 1976-02-20 1977-09-16 Apb Sa Volet anti-souffle a fermeture et ouverture automatiques
GB2088944A (en) * 1980-12-06 1982-06-16 Bjp Ventilation Developments L Louvred Closure with Automatic Drop Rod Operating Mechanism
NZ222645A (en) * 1986-11-25 1990-07-26 Colt Int Ltd Ventilator with fused fire prop
GB2208427B (en) * 1987-08-03 1991-07-10 Dufaylite Dev Ltd Smoke diverter units
CS271622B1 (en) * 1988-10-05 1990-10-12 Marek Jiri Safety cut-off fire flap with low air resistance

Also Published As

Publication number Publication date
PL1688164T3 (pl) 2009-04-30
EP1688164A1 (fr) 2006-08-09
DE502005005873D1 (de) 2008-12-18
ATE413214T1 (de) 2008-11-15
ES2317090T3 (es) 2009-04-16

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