EP0396785A1 - Dispositif d'obturation d'installations de ventilation - Google Patents

Dispositif d'obturation d'installations de ventilation Download PDF

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Publication number
EP0396785A1
EP0396785A1 EP89105492A EP89105492A EP0396785A1 EP 0396785 A1 EP0396785 A1 EP 0396785A1 EP 89105492 A EP89105492 A EP 89105492A EP 89105492 A EP89105492 A EP 89105492A EP 0396785 A1 EP0396785 A1 EP 0396785A1
Authority
EP
European Patent Office
Prior art keywords
ventilation
slats
frame
cross
section
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
EP89105492A
Other languages
German (de)
English (en)
Other versions
EP0396785B1 (fr
Inventor
Gottfried Dipl.-Ing. Kraft
Franz Dipl.-Ing. Kraft
Peter Dr. Kuhn
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.)
Rolf Kuhn GmbH
Original Assignee
Rolf Kuhn GmbH
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 Rolf Kuhn GmbH filed Critical Rolf Kuhn GmbH
Priority to AT89105492T priority Critical patent/ATE139134T1/de
Priority to EP89105492A priority patent/EP0396785B1/fr
Priority to DE58909690T priority patent/DE58909690D1/de
Priority to ES89105492T priority patent/ES2087856T3/es
Publication of EP0396785A1 publication Critical patent/EP0396785A1/fr
Application granted granted Critical
Publication of EP0396785B1 publication Critical patent/EP0396785B1/fr
Priority to GR960401678T priority patent/GR3020308T3/el
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
    • A62C2/14—Hinged dampers with two or more blades

Definitions

  • the invention relates to a device for shutting off ventilation devices such as ventilation ducts, ventilation passages, ventilation closures and / or the like against the passage of heat, flames, gases and possibly smoke with a cross-section of the ventilation device through the cross-section of flow-arranged, mutually spaced lamellae from a in Fire foaming and hermetically sealing the cross-section.
  • ventilation devices such as ventilation ducts, ventilation passages, ventilation closures and / or the like against the passage of heat, flames, gases and possibly smoke
  • a cross-section of the ventilation device through the cross-section of flow-arranged, mutually spaced lamellae from a in Fire foaming and hermetically sealing the cross-section.
  • a so-called fire protection cartridge is also known, which is installed in the ventilation cross section, for example, in the ceiling area of a ventilation system.
  • This is a block that crosses the cross section of a ventilation device and consists of lamellae arranged parallel to one another in the flow direction and between which the air normally flows.
  • the slats consist of strips of a foaming sealant that reacts above a certain temperature. These strips foam up in the event of a fire and close the gaps between them, so that heat, flames and gases from the source of the fire cannot reach the neighboring rooms via the ventilation system.
  • the disadvantage of the known construction is that the hermetic closure in the event of fire takes place only after a longer reaction time and only at higher temperatures, which is above the reaction temperature of the foaming material.
  • shut-off device reacts relatively slowly depending on the response behavior of the fire protection panels. If no heat is generated in the event of damage, which could cause the sealing compound to foam, the known shut-off device does not respond, so that cold smoke or harmful gases, for example, can reach the other rooms through the ventilation system without hindrance. Finally, functional tests cannot be carried out with the known shut-off device, since the fire protection cartridge in the event of a fire is used up after sealing and must be replaced with a new cartridge. Reversible sealing tests are not possible.
  • the invention is therefore based on the object of developing a device for shutting off ventilation devices in accordance with the generic term in such a way that they provide permanent fire protection partitioning of ventilation devices of the above-mentioned type also enables a strong differential pressure, depending on different temperature ranges, gradually reacts in the sense of increasing closing of the ventilation device, is simple in construction and is therefore inexpensive to manufacture, and simple maintenance can be ensured at the longest possible intervals and can be integrated into a component.
  • the slats are adjustable in such a way that the cross section of the ventilation device can be repeatedly closed in a gastight manner at a temperature below the reaction temperature of the sealing material.
  • the adjustable slats can be rotatably mounted about an axis which is arranged in a plane which extends perpendicular to the longitudinal axis of the ventilation device and thus perpendicular to the direction of flow of the air.
  • the adjustability of the slats can be facilitated in that they are arranged in a frame extending through the ventilation device, the rotatable or pivotable slats being clamped onto a respective rotating plate arranged at their ends, which in turn are rotatably mounted in the frame walls opposite one another.
  • the frame which is preferably made of a material with low thermal conductivity, can be U-shaped in cross section and can have foaming strips of sealing material on its vertical inner sides of the frame in the event of a fire.
  • an H-shaped arrangement results in the closed state, i.e. a grid with vertically or horizontally arranged slats, the slat material foaming in the event of a fire and thereby achieving a stable sealing compound with optimal tightness, since the slat grille the greatest possible against lateral support and thus has great inherent stability.
  • the rotatable or swiveling slats can advantageously be adjusted together using a lever system, so that they close the space between two fixed slats. If the above-described advantageous H-shaped lattice construction is to be achieved, then the length of the rotatably mounted slats is dimensioned such that they exactly seal the space between two fixed slats. If, on the other hand, a different closure construction is selected, for example the adjustment of all the slats, then an overlap of the slats can also be provided in the locked state.
  • the lever system used to control the rotatable or pivotable slats is actuated by means of a control device which responds to heat and / or smoke.
  • This control device can be formed, for example, by a thermocouple acting against the pressure of a return spring, or by an alloyed memory metal, which returns the pivoted fins to their starting position when they cool below the triggering temperature.
  • the control device can be formed by a device coupled to a smoke detector, so that it is thereby achieved that the shut-off device functions even when insufficient heat is generated in the event of damage, which could trigger a thermally responsive control device.
  • the device according to the invention does not trip at temperatures up to 65 ° C for at least one hour, starts from 70 ° C with the release, ie with the rotary movement of the rotatably and pivotably mounted slats, and in which the sealing material foams at about 100 ° C, which then leads to the desired permanent isolation even against strong differential pressure.
  • the device according to the invention is reversible in lower temperature ranges below 100 ° C. and Therefore, in these temperature ranges, their functionality can be tested several times at intervals. Only after a fire, in which the sealing material is foamed, is it necessary to replace the lamella block.
  • control device is arranged at the top and bottom of the frame profile.
  • the movable and / or permanently installed slats are provided with additional lip seals in order to achieve an even greater tightness against smoke.
  • the seals can advantageously be arranged at least on the narrow end faces of the adjustable slats and / or be located in the region of the longitudinal center plane of the fixed slats.
  • the shut-off device quickly closes the entire cross-sectional area of the ventilation device in the first minutes after the fire, so that the relatively slow response of the sealing fire protection material is compensated for by the additional, mechanical triggering.
  • the solid insulating mass produced after the foaming guarantees permanent, hermetic sealing of the ventilation system against the passage of heat, flames, gases and smoke, even under strong, positive differential pressure.
  • no foaming of the sealing material occurs, so that the pivoted slats are returned to their starting position via a return spring system or when cooling via a memory metal and return to their original position and function.
  • the shut-off device can therefore be tested periodically to determine whether there is a thermal release, and it can then test the original function of the device direction are restored, in which the cross section of the ventilation device allows unimpeded passage of air.
  • the shut-off device 1 is installed in a ventilation duct 2, with slats 4 arranged vertically in a frame 3 which pass through the ventilation duct 2. These fins are arranged in the flow direction of the air flowing through the ventilation line 2 parallel and at a distance from each other, so that the air can flow through the shut-off device 1 in the direction of arrow 5.
  • adjustable slats 6, 7 and 8 are provided, ie rotatable or pivotable about their central axis arranged perpendicular to the plane of the drawing, while fixed slats 9, 10 etc. are arranged in between.
  • the frame 3 is U-shaped in cross-section and on the vertical frame inside foaming strips 11, 12 are attached, which guarantee sealing of this critical edge area in the event of a fire.
  • the pivotable slats are clamped with their central axis at their upper and lower ends in the turntables provided there, which enable each adjustable slat to pivot by 90 °.
  • Each turntable has a pivot lever 14, and the individual pivot levers are connected to a linkage 15, which can be moved via a control device 16 in the direction of arrow 17 against the force of a return spring 18.
  • the control device in the present case is a thermocouple which, at a temperature of approximately 70 ° C., adjusts the linkage 15 in the direction of arrow 17 against the force of the return spring 18 and thus rotates the adjustable slats 6, 7 and 8 until they assume the position shown in FIG. 3, in which they seal the space between the fixed slats 9, 10 or between the fixed slats and and the foaming strips 11, 12.
  • the control device 16 is arranged with the pivot levers 14 in the embodiment shown above and below in the frame profile. As long as the reaction temperature of the foaming material of at least 100 ° C is not reached, the pivoted fins 6, 7 and 8 return to the position shown in Fig. 2 after cooling below the trigger temperature of about 70 ° C, so that the ventilation grille returns to its original form and function.
  • the sealing material of the adjusted slats foams, so that an approximately H-shaped slat grid is formed, which due to the mutual connection of the sealing masses and the support structure of the slat body has great inherent stability and ensures permanent, hermetic sealing of the shut-off device against the passage of heat, flames, gases and smoke even under strong, positive differential pressure.
  • the lamellae can consist entirely of material foaming in the event of fire or have a stable support structure which is coated with the aforementioned material.
  • the latter has the advantage that a support structure or lattice structure is retained in the event of a fire, which optimally withstands a considerable differential pressure.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Special Wing (AREA)
  • Air-Flow Control Members (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Ventilation (AREA)
  • Air-Conditioning For Vehicles (AREA)
EP89105492A 1989-03-28 1989-03-28 Dispositif d'obturation d'installations de ventilation Expired - Lifetime EP0396785B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT89105492T ATE139134T1 (de) 1989-03-28 1989-03-28 Vorrichtung zum absperren von lüftungseinrichtungen
EP89105492A EP0396785B1 (fr) 1989-03-28 1989-03-28 Dispositif d'obturation d'installations de ventilation
DE58909690T DE58909690D1 (de) 1989-03-28 1989-03-28 Vorrichtung zum Absperren von Lüftungseinrichtungen
ES89105492T ES2087856T3 (es) 1989-03-28 1989-03-28 Dispositivo para el cierre de dispositivos de aireacion.
GR960401678T GR3020308T3 (en) 1989-03-28 1996-06-20 Device for the obstruction of ventilation installations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP89105492A EP0396785B1 (fr) 1989-03-28 1989-03-28 Dispositif d'obturation d'installations de ventilation

Publications (2)

Publication Number Publication Date
EP0396785A1 true EP0396785A1 (fr) 1990-11-14
EP0396785B1 EP0396785B1 (fr) 1996-06-12

Family

ID=8201143

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89105492A Expired - Lifetime EP0396785B1 (fr) 1989-03-28 1989-03-28 Dispositif d'obturation d'installations de ventilation

Country Status (5)

Country Link
EP (1) EP0396785B1 (fr)
AT (1) ATE139134T1 (fr)
DE (1) DE58909690D1 (fr)
ES (1) ES2087856T3 (fr)
GR (1) GR3020308T3 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10134839A1 (de) * 2001-07-17 2003-02-06 Guenter Schulte Einrichtung zum rauch- und feuerbeständigen Verschliessen eines Wand- oder Deckendurchbruchs
EP1411287A1 (fr) * 2002-10-19 2004-04-21 Selkirkflue Limited Traversée pour tube résistante au feu
EP1684026A1 (fr) * 2005-01-21 2006-07-26 Martin Reuter Système de fermeture automatique de passages
DE102008059747A1 (de) * 2008-12-01 2010-06-10 Engels Ingenieure Gmbh Brandschutzvorrichtung für Hochhäuser
EP2366435A1 (fr) * 2010-03-15 2011-09-21 Grempco S.A. Clapet coupe-feu
DE202015102976U1 (de) 2015-06-09 2015-10-19 Robert Wichelmann Brandschutzvorrichtung für Hochhäuser
WO2017021592A1 (fr) * 2015-08-05 2017-02-09 BAUMERT (Société par Actions Simplifiée Unipersonnelle) Dispositif de clapet coupe-feu et ensemble composé d'au moins deux tels dispositifs montés en série
CN112369810A (zh) * 2020-11-10 2021-02-19 湖南瑞奇电器有限公司 一种用于电取暖桌的吹风发热装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10104923C1 (de) * 2001-01-25 2002-10-02 Lta Lufttechnische Komponenten Brandschutzklappe für Lüftungssysteme

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2153480A1 (en) * 1971-09-25 1973-05-04 Trox Gmbh Geb Fire break valves for ducts - combining use of pivoted gates and intumescent foams to seal the duct
DE2342531A1 (de) * 1973-08-23 1975-02-27 Hans Guenter Schmidt Absperr- und drosseleinrichtung fuer lueftungs- und klimasysteme
DE2431065A1 (de) * 1974-06-28 1976-01-15 Maico Elektroapparate Verschlusseinrichtung
GB2151013A (en) * 1983-12-07 1985-07-10 Haslam George Gilbert Dampers for ventilation ducts
GB2203646A (en) * 1987-04-23 1988-10-26 Actionair Equip Combination thermal actuator and fusible link, especially for fire and/or smoke dampers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2153480A1 (en) * 1971-09-25 1973-05-04 Trox Gmbh Geb Fire break valves for ducts - combining use of pivoted gates and intumescent foams to seal the duct
DE2342531A1 (de) * 1973-08-23 1975-02-27 Hans Guenter Schmidt Absperr- und drosseleinrichtung fuer lueftungs- und klimasysteme
DE2431065A1 (de) * 1974-06-28 1976-01-15 Maico Elektroapparate Verschlusseinrichtung
GB2151013A (en) * 1983-12-07 1985-07-10 Haslam George Gilbert Dampers for ventilation ducts
GB2203646A (en) * 1987-04-23 1988-10-26 Actionair Equip Combination thermal actuator and fusible link, especially for fire and/or smoke dampers

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10134839A1 (de) * 2001-07-17 2003-02-06 Guenter Schulte Einrichtung zum rauch- und feuerbeständigen Verschliessen eines Wand- oder Deckendurchbruchs
DE10134839B4 (de) * 2001-07-17 2004-08-26 Schulte, Günter Einrichtung zum rauch- und feuerbeständigen Verschliessen eines Wand- oder Deckendurchbruchs
EP1411287A1 (fr) * 2002-10-19 2004-04-21 Selkirkflue Limited Traversée pour tube résistante au feu
EP1684026A1 (fr) * 2005-01-21 2006-07-26 Martin Reuter Système de fermeture automatique de passages
DE102008059747A1 (de) * 2008-12-01 2010-06-10 Engels Ingenieure Gmbh Brandschutzvorrichtung für Hochhäuser
DE102008059747B4 (de) * 2008-12-01 2012-01-12 Engels Ingenieure Gmbh Brandschutzvorrichtung für Hochhäuser
EP2366435A1 (fr) * 2010-03-15 2011-09-21 Grempco S.A. Clapet coupe-feu
DE202015102976U1 (de) 2015-06-09 2015-10-19 Robert Wichelmann Brandschutzvorrichtung für Hochhäuser
WO2017021592A1 (fr) * 2015-08-05 2017-02-09 BAUMERT (Société par Actions Simplifiée Unipersonnelle) Dispositif de clapet coupe-feu et ensemble composé d'au moins deux tels dispositifs montés en série
CN112369810A (zh) * 2020-11-10 2021-02-19 湖南瑞奇电器有限公司 一种用于电取暖桌的吹风发热装置

Also Published As

Publication number Publication date
DE58909690D1 (de) 1996-07-18
ES2087856T3 (es) 1996-08-01
GR3020308T3 (en) 1996-09-30
EP0396785B1 (fr) 1996-06-12
ATE139134T1 (de) 1996-06-15

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