EP0732125A2 - Fire preventive blocking device for ventilation channels - Google Patents
Fire preventive blocking device for ventilation channels Download PDFInfo
- Publication number
- EP0732125A2 EP0732125A2 EP95116150A EP95116150A EP0732125A2 EP 0732125 A2 EP0732125 A2 EP 0732125A2 EP 95116150 A EP95116150 A EP 95116150A EP 95116150 A EP95116150 A EP 95116150A EP 0732125 A2 EP0732125 A2 EP 0732125A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- shut
- air inlet
- plate
- housing
- inlet opening
- 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
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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
- A62C2/18—Sliding dampers
- A62C2/20—Sliding dampers at 90 degrees to the plane of the opening
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- 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
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- 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
- F24F11/35—Responding to malfunctions or emergencies to fire, excessive heat or smoke by closing air passages
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- 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
- F24F13/1426—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 actuating means
Definitions
- the invention relates to a fire protection shut-off device for ventilation ducts, consisting of a built-in housing with an air inlet opening and an air outlet opening, the air inlet opening being able to be shut off by means of a shut-off device and the shut-off device being held in the open position under spring action and rapidly opening in the closed position at a predetermined temperature.
- shut-off element consists of wing flaps which are pivotally mounted in the installation housing, which are held in the open position by means of a soldered spring under spring tension and which snap into the closed position after the solder has burst.
- the two wing flaps are held in the open position on a common or separate pivot axes, forming a free space in the middle of the housing.
- the bearing axis for the two wing flaps extends over the entire cross section of the housing. This is disadvantageous in terms of flow technology (see FR 22 86 351).
- the same fluidic disadvantages occur in another known construction with a bearing profile for the wing flaps. From a fluidic point of view, this is disrupted by a bow-like tension spring which engages under the two wing flaps or their mounting in the open position (cf. US 41 46 048).
- the invention has for its object to provide a fire protection shut-off device for ventilation ducts of the type described above, which is characterized not only by reduced pressure losses, but also by a particularly simple, functional and practically maintenance-free design.
- a generic fire protection shut-off device in that the built-in housing on its housing side opposite the air inlet opening has a guide socket for a guide rod on the shut-off element and a closing spring surrounding the guide rod, that the shut-off element is designed as a closing plate and the closing spring as a memory spring are.
- a memory spring is to be understood as a closing spring with a shape memory, which is contracted at room temperature and is activated at higher temperatures and consequently expands.
- such a memory spring is suitable for use in fire protection shut-off devices, and in the embodiment according to the invention ensures that the locking plate is kept in the open position at room temperature and consequently contracted memory spring, in the event of fire, however, is pressed into the closed position because the memory spring expands relatively quickly due to the developing temperatures and generates sufficient closing forces.
- the closing plate held in the open position by means of the memory spring and depressed only in the closing position in the event of fire enables practically undisturbed air passage through the fire protection shut-off device according to the invention, so that only minimal pressure losses occur.
- the locking mechanism is relatively simple and reliable and, in particular, is largely maintenance-free, because the use of rotating locking elements such as wing flaps or the like does not involve rotating parts that are in the air stream and can contaminate them.
- the guide rod on the locking plate and, on the other hand, the locking or memory spring surrounding the guide rod are suitable for ensuring a sufficiently exact translatory movement of the locking plate in the event of a fire with an expanding memory spring such that the locking plate actually seals the air inlet opening on the opposite side of the housing.
- the locking plate in the open position can be glued to the associated housing side or housing wall by means of a heat-sensitive adhesive if, for example, an absolutely motion-free seat of the locking plate is to be ensured in the open position even with strong air flow and / or the locking or memory Spring is not attached to the lock plate or its guide rod.
- This heat-sensitive adhesive releases the locking plate immediately when heat develops, so that the expansion of the memory spring is not hindered.
- the invention provides that the installation housing as a flat housing with a base plate with the air inlet opening and with a cover attached to the base plate with the formation of edge-side installation flanges is formed that the cover has an open end face to form the air outlet opening, and that the guide socket is arranged on the outside of the cover.
- the air inlet opening can have a drawn-in inner edge which is surrounded by a fire-resistant plate made of calcium silicate, for example, with the formation of an annular gap, the locking plate having an outer edge which engages in the annular gap in the closed position of the closing plate on the air inlet opening and encompasses the inner edge of the air inlet opening .
- a fire-resistant plate made of calcium silicate for example, with the formation of an annular gap
- the locking plate having an outer edge which engages in the annular gap in the closed position of the closing plate on the air inlet opening and encompasses the inner edge of the air inlet opening .
- the closing spring expediently surrounds the guide rod with a predetermined narrow movement play, and is also inserted with a specified movement play in the guide socket, so that the closing spring and the guide rod when guiding the locking plate from its open position into the closed position as it were work together.
- the closing spring can be fastened at one end to the guide socket and at the other end to the foot of the guide rod and / or on the closing plate.
- a fire protection shut-off device for ventilation ducts is shown in the figures, the air flow being indicated by arrows.
- the basic structure of this fire protection shut-off device consists of a built-in housing 1 with an air inlet opening 2 and an air outlet opening 3, the air inlet opening 2 being able to be shut off by means of a shut-off device and the shut-off device being held in the open position under spring action and rapidly opening in the closed position at a predetermined temperature.
- the installation housing 1 has on its housing side opposite the air inlet opening 2 a guide stub 4 for a guide rod 5 on the shut-off element and a closing spring 6 surrounding the guide rod 5.
- the Shut-off device is designed as a closing plate 7.
- the closing spring 6 is designed as a memory spring contracted at room temperature, which expands at higher temperatures as a result of the heat development resulting from a fire and presses the closing plate 7 onto the air inlet opening 2 in the closed position.
- the closing plate 7 is glued to the associated housing side by means of a heat-sensitive adhesive 8.
- the installation housing 1 is designed as a flat housing with a base plate 9 with the air inlet opening 2 and with a cover 11 attached to the base plate with the formation of installation flanges 10 on the edge.
- the cover 11 has an open end face to form the air outlet opening 3.
- the guide socket 4 is arranged on the outside on the cover 11.
- the air inlet opening 2 has a drawn-in inner edge 12, which is surrounded by a fire-resistant plate or plates 13 made of calcium silicate, for example, with the formation of an annular gap.
- the locking plate 7 has an outer edge 14 which, when the locking plate 7 is in the closed position, engages in the annular gap 15 on the air inlet opening 2 and engages around the inner edge 12 of the air inlet opening 2.
- the built-in housing 1 or its cover 11 is surrounded by fire-resistant plates 16 or a fire-resistant extension at hood height.
- the air outlet opening 3 delimited by a plate 16 or the expansion opens into a ventilation duct 17 parallel to the plate or hood.
- the closing spring 6 surrounds the guide rod 5 with a predetermined range of motion and even with a predetermined range of motion inserted into the guide socket 4. Furthermore, the closing spring 6 can be fastened at one end to the guide stub 4 and at the other end to the foot of the guide rod 5 and / or on the closing plate 7.
- the closing plate 7 pressed by the memory spring into the closed position as a result of thermal expansion is indicated by dashed lines.
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- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Chemical & Material Sciences (AREA)
- Public Health (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Flow Control Members (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
- Duct Arrangements (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
Description
Die Erfindung betrifft eine Feuerschutz-Absperrvorrichtung für Lüftungskanäle, bestehend aus einem Einbaugehäuse mit einer Lufteintrittsöffnung und einer Luftaustrittsöffnung, wobei die Lufteintrittsöffnung mittels eines Absperrorgans absperrbar ist und das Absperrorgan unter Federbeaufschlagung in Offenstellung gehalten ist und bei vorgegebener Temperatur in Schließstellung schnellt.The invention relates to a fire protection shut-off device for ventilation ducts, consisting of a built-in housing with an air inlet opening and an air outlet opening, the air inlet opening being able to be shut off by means of a shut-off device and the shut-off device being held in the open position under spring action and rapidly opening in the closed position at a predetermined temperature.
Es ist eine derartige Feuerschutz-Absperrvorrichtung bekannt, bei welcher das Absperrorgan aus im Einbaugehäuse schwenkbar gelagerten Flügelklappen besteht, welche mittels eines Schmelzlots unter Federspannung in Offenstellung gehalten sind und nach dem Bersten des Schmelzlots in Schließstellung schnellen. Die beiden Flügelklappen sind auf einer gemeinsamen oder getrennten Schwenkachsen unter Bildung eines freien Zwischenraumes in der Gehäusemitte in Offenstellung gehalten. Bei einer bekannten Ausführungsform erstreckt sich die Lagerachse für die beiden Flügelklappen über den gesamten Gehäusequerschnitt. Das in strömungstechnischer Hinsicht nachteilig (vgl. FR 22 86 351). Die gleichen strömungstechnischen Nachteile treten bei einer anderen bekannten Konstruktion mit einem Lagerprofil für die Flügelklappen auf. Hier stört in strömungstechnischer Hinsicht eine bügelartige Zugfeder, welche die beiden Flügelklappen bzw. deren Lagerung in Offenstellung untergreift (vgl. US 41 46 048).Such a fire protection shut-off device is known, in which the shut-off element consists of wing flaps which are pivotally mounted in the installation housing, which are held in the open position by means of a soldered spring under spring tension and which snap into the closed position after the solder has burst. The two wing flaps are held in the open position on a common or separate pivot axes, forming a free space in the middle of the housing. In a known embodiment, the bearing axis for the two wing flaps extends over the entire cross section of the housing. This is disadvantageous in terms of flow technology (see FR 22 86 351). The same fluidic disadvantages occur in another known construction with a bearing profile for the wing flaps. From a fluidic point of view, this is disrupted by a bow-like tension spring which engages under the two wing flaps or their mounting in the open position (cf. US 41 46 048).
Der Erfindung liegt die Aufgabe zugrunde eine Feuerschutz-Absperrvorrichtung für Lüftungskanäle der eingangs beschriebenen Art zu schaffen, die sich nicht nur durch reduzierte Druckverluste, sondern darüber hinaus durch eine besonders einfache, funktionsgerechte und praktisch wartungsfreie Bauweise auszeichnet.The invention has for its object to provide a fire protection shut-off device for ventilation ducts of the type described above, which is characterized not only by reduced pressure losses, but also by a particularly simple, functional and practically maintenance-free design.
Diese Aufgabe löst die Erfindung bei einer gattungsgemäßen Feuerschutz-Absperrvorrichtung dadurch, daß das Einbaugehäuse an seiner der Lufteintrittsöffnung gegenüberliegenden Gehäuseseite einen Führungsstutzen für eine Führungsstange am Absperrorgan und eine die Führungsstange umgebende Schließfeder aufweist, daß das Absperrorgan als Schließteller und die Schließfeder als Memory-Feder ausgebildet sind. Unter Memory-Feder ist eine Schließfeder mit einem Formgedächtnis zu verstehen, die bei Raumtemperatur zusammengezogen ist und bei höheren Temperaturen aktiviert wird, sich folglich ausdehnt. - Überraschenderweise ist eine solche Memory-Feder für den Einsatz bei Feuerschutz-Absperrvorrichtungen geeignet, und sorgt bei der erfindungsgemäßen Ausführungform dafür, daß der Schließteller bei Raumtemperatur und folglich zusammengezogener Memory-Feder in Offenstellung gehalten wird, im Brandfall dagegen in Schließstellung gedrückt wird, weil sich die Memory-Feder infolge der sich entwickelnden Temperaturen verhältnismäßig schnell ausdehnt und hinreichende Schließkräfte erzeugt. Der mittels der Memory-Feder in Offenstellung gehaltene und nur im Brandfall in Schließstellung niedergedrückte Schließteller ermöglicht einen praktisch ungestörten Luftdurchtritt durch die erfindungsgemäße Feuerschutz-Absperrvorrichtung, so daß nur minimale Druckverluste auftreten. Hinzu kommt, daß der Schließmechanismus verhältnismäßig einfach und funktionssicher aufgebaut ist und insbesondere weitgehend wartungsfrei ist, weil auf den Einsatz drehbeweglicher Schließelemente wie Flügelklappen oder dergleichen drehbewegliche Teile, die im Luftstrom liegen und verschmutzen können, verzichtet wird. Überraschen muß in diesem Zusammenhang ferner, daß einerseits die Führungsstange an dem Schließteller und andererseits die die Führungsstange umgebende Schließ- bzw. MemoryFeder geeignet sind, eine hinreichend exakte translatorische Bewegung des Schließtellers im Brandfalle bei sich ausdehnender Memory-Feder derart zu gewährleisten, daß der Schließteller auch tatsächlich die Lufteintrittsöffnung auf der gegenüberliegenden Gehäuseseite mit Dichtwirkung abschließt. Im Rahmen der Erfindung kann der Schließteller in Offenstellung mittels eines wärmeempfindlichen Klebers an der zugeordneten Gehäuseseite bzw. Gehäusewand angeklebt sein, wenn beispielsweise selbst bei starker Luftströmung ein absolut bewegungsfreier Sitz des Schließtellers in Offenstellung gewährleistet sein soll und/oder die Schließ- bzw. Memory-Feder nicht an dem Schließteller bzw. seiner Führungsstange befestigt ist. Dieser wärmeempfindliche Kleber gibt den Schließteller bei Wärmeentwicklung unverzüglich frei, so daß die Ausdehnung der Memory-Feder nicht behindert wird.This object is achieved by the invention in a generic fire protection shut-off device in that the built-in housing on its housing side opposite the air inlet opening has a guide socket for a guide rod on the shut-off element and a closing spring surrounding the guide rod, that the shut-off element is designed as a closing plate and the closing spring as a memory spring are. A memory spring is to be understood as a closing spring with a shape memory, which is contracted at room temperature and is activated at higher temperatures and consequently expands. - Surprisingly, such a memory spring is suitable for use in fire protection shut-off devices, and in the embodiment according to the invention ensures that the locking plate is kept in the open position at room temperature and consequently contracted memory spring, in the event of fire, however, is pressed into the closed position because the memory spring expands relatively quickly due to the developing temperatures and generates sufficient closing forces. The closing plate held in the open position by means of the memory spring and depressed only in the closing position in the event of fire enables practically undisturbed air passage through the fire protection shut-off device according to the invention, so that only minimal pressure losses occur. In addition, the locking mechanism is relatively simple and reliable and, in particular, is largely maintenance-free, because the use of rotating locking elements such as wing flaps or the like does not involve rotating parts that are in the air stream and can contaminate them. In this context, it must also be surprising that, on the one hand, the guide rod on the locking plate and, on the other hand, the locking or memory spring surrounding the guide rod are suitable for ensuring a sufficiently exact translatory movement of the locking plate in the event of a fire with an expanding memory spring such that the locking plate actually seals the air inlet opening on the opposite side of the housing. Within the scope of the invention, the locking plate in the open position can be glued to the associated housing side or housing wall by means of a heat-sensitive adhesive if, for example, an absolutely motion-free seat of the locking plate is to be ensured in the open position even with strong air flow and / or the locking or memory Spring is not attached to the lock plate or its guide rod. This heat-sensitive adhesive releases the locking plate immediately when heat develops, so that the expansion of the memory spring is not hindered.
Weitere erfindungswesentliche Merkmale sind im folgenden aufgeführt. So sieht die erfindung vor, daß das Einbaugehäuse als Flachgehäuse mit einer Grundplatte mit der Lufteintrittsöffnung und mit einer auf der Grundplatte unter Bildung von randseitigen Einbauflanschen befestigten Abdeckhaube ausgebildet ist, daß die Abdeckhaube unter Bildung der Luftaustrittsöffnung eine offene Stirnfläche aufweist, und daß der Führungsstutzen außenseitig auf der Abdeckhaube angeordnet ist. Diese Maßnahmen haben zur Folge, daß gleichsam eine zweifache Luftumlenkung aus dem betreffenden Raum in den Hauptlüftungskanal erfolgen muß und dadurch eine beachtliche Schalldämmung erreicht wird. Aus strömungstechnischen Gründen kann die Lufteintrittsöffnung einen eingezogenen Innenrand aufweisen, der unter Ringspaltbildung von einer feuerwiderstandsfähigen Platte aus zum Beispiel Kalziumsilikat umgeben ist, wobei der Schließteller einen Außenrand aufweist, der in Schließstellung des Schließtellern auf der Lufteintrittsöffnung in den Ringspalt eingreift und den Innenrand der Lufteintrittsöffnung umgreift. Auf diese Weise wird nicht nur ein erhöhter Feuerwiderstand erreicht, sondern auch ein optimales Abdichten der Lufteintrittsöffnung bei aufgedrücktem Schließteller, der in Schließstellung praktisch zentriert wird. Zur Verwirklichtung einer kompakten und funktionssicheren Bauweise umgibt die Schließfeder zweckmäßigerweise die Führungsstange mit einem vorgegebenen engen Bewegungsspiel, und ist darüber hinaus mit vorgegebenem Bewegungsspiel in den Führungsstutzen eingesetzt, so daß die Schließfeder und die Führungsstange bei der Führung des Schließtellers aus seiner Offenstellung in die Schließstellung gleichsam zusammenwirken. Ferner kann die Schließfeder mit ihrem einen Ende an dem Führungsstutzen und mit ihrem anderen am Fuß der Führungsstange und/oder auf dem Schließteller befestigt sein. Endlich sieht die Erfindung vor, daß das Einbaugehäuse bzw. dessen Abdeckhaube von feuerwiderstandsfähigen Platten oder einem entsprechenden Ausbau in Haubenhöhe umgeben ist und die von einer Platte begrenzte Luftaustrittsöffnung in einer platten- bzw. haubenparallelen Lüftungskanal mündet, bei dem es sich um einen Hauptkanal handelt. Dadurch wird die gezielte Zweifachumlenkung und erhöhte Schalldämmung optimiert.Further features essential to the invention are listed below. Thus, the invention provides that the installation housing as a flat housing with a base plate with the air inlet opening and with a cover attached to the base plate with the formation of edge-side installation flanges is formed that the cover has an open end face to form the air outlet opening, and that the guide socket is arranged on the outside of the cover. The result of these measures is that a double deflection of air from the room in question into the main ventilation duct has to take place, and as a result considerable sound insulation is achieved. For aerodynamic reasons, the air inlet opening can have a drawn-in inner edge which is surrounded by a fire-resistant plate made of calcium silicate, for example, with the formation of an annular gap, the locking plate having an outer edge which engages in the annular gap in the closed position of the closing plate on the air inlet opening and encompasses the inner edge of the air inlet opening . In this way, not only is increased fire resistance achieved, but also an optimal sealing of the air inlet opening when the closing plate is pressed on, which is practically centered in the closed position. To achieve a compact and functionally reliable design, the closing spring expediently surrounds the guide rod with a predetermined narrow movement play, and is also inserted with a specified movement play in the guide socket, so that the closing spring and the guide rod when guiding the locking plate from its open position into the closed position as it were work together. Furthermore, the closing spring can be fastened at one end to the guide socket and at the other end to the foot of the guide rod and / or on the closing plate. Finally, the invention provides that the installation housing or its cover of fire-resistant plates or a corresponding Expansion at hood height is surrounded and the air outlet opening delimited by a plate opens into a ventilation duct parallel to the plate or hood, which is a main duct. This optimizes the targeted double deflection and increased sound insulation.
Im folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert; es zeigen:
- Fig. 1
- Eine erfindungsgemäße Feuerschutz-Absperrvorrichtung im Querschnitt,
- Fig. 2
- den Gegenstand nach Fig. 1 in Ansicht des Pfeiles x,
- Fig. 3
- den Gegenstand nach Fig. 1 in Ansicht des Pfeiles y.
- Fig. 1
- A fire protection shut-off device according to the invention in cross section,
- Fig. 2
- 1 in the view of arrow x,
- Fig. 3
- 1 in the view of the arrow y.
In den Figuren ist eine Feuerschutz-Absperrvorrichtung für Lüftungskanäle dargestellt, wobei die Luftströmung durch Pfeile angedeutet ist. Diese Feuerschutz-Absperrvorrichtung besteht in ihrem grundsätzlichen Aufbau aus einem Einbaugehäuse 1 mit einer Lufteintrittsöffnung 2 und einer Luftaustrittsöffnung 3, wobei die Lufteintrittsöffnung 2 mittels eines Absperrorgans absperrbar ist und das Absperrorgan unter Federbeaufschlagung in Offenstellung gehalten ist und bei vorgegebener Temperatur in Schließstellung schnellt. Im einzelnen weist das Einbaugehäuse 1 an seiner der Lufteintrittsöffnung 2 gegenüberliegenden Gehäuseseite einen Führungsstutzen 4 für eine Führungsstange 5 am Absperrorgan und eine die Führungsstange 5 umgebende Schließfeder 6 auf. Das Absperrorgan ist als Schließteller 7 ausgebildet. Die Schließfeder 6 ist als bei Raumtemperatur zusammengezogene MemoryFeder ausgebildet, die sich bei höheren Temperaturen infolge der aus einem Brandfall resultierenden Wärmeentwicklung ausdehnt und den Schließteller 7 in Schließstellung auf die Lufteintrittsöffnung 2 drückt. Der Schließteller 7 ist nach dem Ausführungsbeispiel in Offenstellung mittels eines wärmeempfindlichen Klebers 8 an der zugeordneten Gehäuseseite angeklebt.A fire protection shut-off device for ventilation ducts is shown in the figures, the air flow being indicated by arrows. The basic structure of this fire protection shut-off device consists of a built-in housing 1 with an air inlet opening 2 and an air outlet opening 3, the air inlet opening 2 being able to be shut off by means of a shut-off device and the shut-off device being held in the open position under spring action and rapidly opening in the closed position at a predetermined temperature. Specifically, the installation housing 1 has on its housing side opposite the air inlet opening 2 a guide stub 4 for a guide rod 5 on the shut-off element and a closing spring 6 surrounding the guide rod 5. The Shut-off device is designed as a
Das Einbaugehäuse 1 ist als Flachgehäuse mit einer Grundplatte 9 mit der Lufteintrittsöffnung 2 und mit einer auf der Grundplatte unter Bildung von randseitigen Einbauflanschen 10 befestigten Abdeckhaube 11 ausgebildet. Die Abdeckhaube 11 weist unter Bildung der Luftaustrittsöffnung 3 eine offene Stirnseite auf. Der Führungsstutzen 4 ist außenseitig auf der Abdeckhaube 11 angeordnet. Die Lufteintrittsöffnung 2 weist einen eingezogenen Innenrand 12 auf, der unter Ringspaltbildung von einer feuerwiderstandsfähigen Platte oder Platten 13 aus zum Beispiel Kalziumsilikat umgeben ist. Der Schließteller 7 weist einen Außenrand 14 auf, der in Schließstellung des Schließtellers 7 auf der Lufteintrittsöffnung 2 in den Ringspalt 15 eingreift und den Innenrand 12 der Lufteintrittsöffnung 2 umgreift. Das Einbaugehäuse 1 bzw. dessen Abdeckhaube 11 ist von feuerwiderstandsfähigen Platten 16 oder einem feuerwiderstandsfähigen Ausbau in Haubenhöhe umgeben. Die von einer Platte 16 oder dem Ausbau begrenzte Luftaustrittsöffnung 3 mündet in einen platten- bzw. haubenparallelen Lüftungskanal 17.The installation housing 1 is designed as a flat housing with a
Die Schließfeder 6 umgibt die Führungsstange 5 mit vorgegebenem Bewegungsspiel und selbst mit vorgegebenem Bewegungsspiel in den Führungsstutzen 4 eingesetzt. Ferner kann die Schließfeder 6 mit ihrem einen Ende an dem Führungsstutzen 4 und mit ihrem anderen Ende am Fuß der Führungsstange 5 und/oder auf dem Schließteller 7 befestigt sein.The closing spring 6 surrounds the guide rod 5 with a predetermined range of motion and even with a predetermined range of motion inserted into the guide socket 4. Furthermore, the closing spring 6 can be fastened at one end to the guide stub 4 and at the other end to the foot of the guide rod 5 and / or on the
Der infolge Wärmeausdehnung von der Memory-Feder in Schließstellung gedrückte Schließteller 7 ist gestrichelt angedeutet.The
Claims (7)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19505648 | 1995-02-18 | ||
| DE19505648A DE19505648C1 (en) | 1995-02-18 | 1995-02-18 | Fire protection closure device for ventilation channels |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0732125A2 true EP0732125A2 (en) | 1996-09-18 |
| EP0732125A3 EP0732125A3 (en) | 1997-08-20 |
| EP0732125B1 EP0732125B1 (en) | 1999-09-15 |
Family
ID=7754423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95116150A Expired - Lifetime EP0732125B1 (en) | 1995-02-18 | 1995-10-13 | Fire preventive blocking device for ventilation channels |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0732125B1 (en) |
| AT (1) | ATE184497T1 (en) |
| DE (1) | DE19505648C1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6991536B2 (en) | 2000-12-01 | 2006-01-31 | Kent Tooling And Components Limited | Air flow controller and fire damper in an air flow duct |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2286351A1 (en) | 1974-09-27 | 1976-04-23 | Vierling Charles | Fire barrier flaps for ventilator duct - has nylon cords to release folded back flaps to block opening when heated |
| US4146048A (en) | 1977-05-02 | 1979-03-27 | Prefco Productions, Inc. | Fire damper and method of fabrication |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1061548A (en) * | 1965-07-22 | 1967-03-15 | Gustaf Harald Bodin | Improvements in or relating to valve devices for ventilation ducts |
| FR2234501A1 (en) * | 1973-06-22 | 1975-01-17 | Electromecanique Ind Soc Gen | Fire safety closure for ventilation duct - has spring loaded plug held open by fusible ring on plug mounting shaft |
| NO133870C (en) * | 1975-01-31 | 1976-07-14 | Ole A Larsen | |
| GB2203646B (en) * | 1987-04-23 | 1991-02-13 | Actionair Equip | Combination thermal actuator and fusible link, especially for fire and/or smoke dampers |
| DE3813170A1 (en) * | 1988-04-20 | 1989-11-02 | Friedrich Rathgeber Kg Regelte | Thermally controllable shut-off device in pipelines for gaseous flow media |
-
1995
- 1995-02-18 DE DE19505648A patent/DE19505648C1/en not_active Expired - Lifetime
- 1995-10-13 AT AT95116150T patent/ATE184497T1/en active
- 1995-10-13 EP EP95116150A patent/EP0732125B1/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2286351A1 (en) | 1974-09-27 | 1976-04-23 | Vierling Charles | Fire barrier flaps for ventilator duct - has nylon cords to release folded back flaps to block opening when heated |
| US4146048A (en) | 1977-05-02 | 1979-03-27 | Prefco Productions, Inc. | Fire damper and method of fabrication |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6991536B2 (en) | 2000-12-01 | 2006-01-31 | Kent Tooling And Components Limited | Air flow controller and fire damper in an air flow duct |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19505648C1 (en) | 1996-03-14 |
| EP0732125A3 (en) | 1997-08-20 |
| EP0732125B1 (en) | 1999-09-15 |
| ATE184497T1 (en) | 1999-10-15 |
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