EP0796638B1 - Fire damper - Google Patents
Fire damper Download PDFInfo
- Publication number
- EP0796638B1 EP0796638B1 EP97250091A EP97250091A EP0796638B1 EP 0796638 B1 EP0796638 B1 EP 0796638B1 EP 97250091 A EP97250091 A EP 97250091A EP 97250091 A EP97250091 A EP 97250091A EP 0796638 B1 EP0796638 B1 EP 0796638B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fire
- opening
- belt
- continuous belt
- fireproof
- 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
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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
Definitions
- the invention relates to a device according to the preamble of claim 1.
- a device is known from WO-A-9402208.
- buildings are usually divided into individual fire-resistant fire sections.
- Such fire compartment partitions consist of space-enclosing fire-resistant components, such as. B. walls or ceilings.
- Openings must be provided in the fire compartment partitions if this is necessary for operational reasons. These openings initially cancel the fire-resistant room closure by separating the fire compartments. It is therefore necessary to automatically close the openings in the event of a fire with special fire protection closures must have the same protective effect as the fire compartment partitions themselves.
- Such fire protection closures are known in the form of rigid flaps, swing doors or sliding elements which are moved in front of the opening in the event of a fire. With these constructions, a considerable amount of space is required in the area of the openings. These sealing elements also have a considerable weight, so that the overall construction is very stable and heavy.
- the drive and locking systems are relatively complicated to ensure the closing and opening functions prescribed by the building authorities.
- Fire protection closures for closing openings through which pipes pass are also known. Devices are used here by which the pipes are separated in the event of a fire in a complicated and technically complex manner in order to be able to move the fire protection element in front of the opening.
- the refractory element consists of a circumferential band, which has at least two holes corresponding to the openings in the fire separation, which are normally aligned with the opening opposite each other, and which are pushed out of the area of coverage of the opening in the event of fire, the space (parking space) required for the element in the normal position can be kept extremely small.
- the element can for example consist of sheet metal or a fire-resistant textile or ceramic fabric. In order to withstand the fire for a prescribed duration, the sheet on the side facing away from the fire side can be cooled by a cooling device.
- the textile or ceramic fabric can also carry additional materials that protect against the effects of fire on one or both sides, which do not or only insignificantly impair the flexibility of the refractory element.
- the cooling device for cooling the sheet advantageously has a material which contains chemically bound water, which is released and evaporated in the event of a fire.
- an opening 2 is provided, for example, for the passage of transported goods.
- a fire protection closure fastened to the wall 1 with a box-shaped housing 3 which completely surrounds the opening 2.
- the housing 3 consists of thin sheet metal and has holes 4 on opposite sides which are aligned with the opening 2, so that the passage of the goods through the housing 3 is not impaired.
- the housing 3 is lined on the inside with insulating plates 5, which are very strongly water-containing.
- the water is chemically bound, such as in plasterboard. Under the action of heat in the event of a fire, the chemically bound water is released and can evaporate, so that the insulating plates 5 exert a strong cooling effect on their surroundings in the event of a fire.
- the insulating plates 5 are designed in their mass and nature so that the water balance available for cooling is adapted to the fire resistance duration required in each case.
- the housing 3 lined with the insulating plates 5 forms a cavity 6 in which the actual fire protection closure is accommodated.
- the opening 2 is closed by a circumferential metal strip 7, the opposite running sections of which lie parallel to the opening 2 at a mutual distance.
- a circumferential metal strip 7 two holes are cut the size of the holes 4 and the opening 2, which are spaced from one another in the longitudinal direction of the sheet metal strip 7 such that they are in a certain position (normal position or open position) in the two opposing sections opposite and aligned with the opening 2 or the holes 4, so that they also do not interfere with the passage of the goods in this position.
- the distance between the holes 8 is at least as large as the width of the opening 2 in the circumferential direction of the metal strip 7.
- the sheet metal strip 7 is guided over two deflection rollers 9, which are located on opposite sides of the opening 2.
- the deflecting rollers 9 each have a ring of cams 10 on the outer edges, which engage in slots 11 punched out on the longitudinal edges of the metal strip 7. This creates a positive connection through which the sheet metal strip 7 can be guided and also moved over the deflection rollers 9.
- one of the deflection rollers 9 is connected to a drive which can be triggered in a known manner in the event of a fire.
- the deflection rollers 9 are adjustably arranged on a carrier system, which in turn is fastened in the housing 3.
- the sheet metal strip 7 In order to avoid bending or warping of the sheet metal strip 7 during the movement, it is preferably guided laterally. This guidance can be done by a support or by a chain.
- the chain runs parallel to the edge of the sheet metal strip 7 and is in engagement with it, so that the sheet metal strip 7 can also be driven via the chain.
- the operation of the device described above is as follows.
- the metal strip 7 is positioned so that there is a free passage of the fire section from one side to the other.
- one of the deflection rollers 9 is rotated by a mechanical closing drive so far that the sheet metal strip 7 which has been taken along reaches a position in which the holes 8 have completely moved out of the area of coverage of the opening 2, so that they run in opposite directions through the two Sections of the metal strip 7 is hermetically sealed.
- the device is designed so that the opening 2 can be closed and opened by the sheet metal strip 7 without great effort and with little wear and tear, without a fire occurring.
- a cooling device made of a sealing block is arranged on both sides of the opening 2 and, like the insulating plates 5, consists of a material containing water in chemically bound form and releasing it when exposed to heat.
- the sealing block 12 becomes the space 13 in front of the opening 2 between the two opposite running sections of the sheet metal strip 7 completed by a perforated plate 14.
- the water vapor generated by the release and evaporation of water flows out of the sealing block 12 through the openings in the perforated plate 14 into the space 13, as a result of which the sheet metal strip 7 closing the opening 2 is cooled for a predetermined duration on the side facing away from the fire side.
- the resistance of the sheet metal strip 7 to the fire attack is strengthened and a lowering of the temperature is achieved on the side facing away from the fire side.
- the entire construction of the fire protection closure is screwed together with bolts 18 and nuts 19.
- the carrier 20 for the deflecting rollers 9 is also connected to this screw connection.
- a pipe 21 is flanged on both sides of the wall 1, so that the fire protection closure shown can also be used for pneumatic conveying systems for transporting suspended matter.
- the present construction is particularly suitable for these, since there are no unevenness in the passage due to the small dimensions or thickness of the metal strip 7. These can lead to sediment deposits, which can prevent the fire protection closure from closing in the event of a fire.
- the refractory element consists of a fabric band 22 made of textile or ceramic material.
- This fabric band 22 works without water vapor cooling. It can be used alone if necessary; however, in most cases it is used as a carrier material for so-called protective beads 23, 24.
- FIG. 6 shows protective beads 23 attached to the outside of the fabric strip 22 and protective beads 24 attached to the inside of the fabric strip 22, which can be provided individually or together.
- the protective beads 23, 24 are attached to the fabric tape 22 using commercially available materials. They are constructed and arranged in such a way that they are without mutual hindrance or disability can be performed by the pulleys 9 on this.
- the outside caterpillars 23 can consist of sheet metal bodies filled with insulating material. They can also be made of a refractory material that foams when exposed to heat and thereby represent a closed protective shield.
- the caterpillars 24 attached on the inside must consist of a refractory material which foams very strongly even with relatively little heat (> 120 ° C.). The foaming takes place inwards, so that the entire space 13 between the opposing band sections is filled with foam 25. This is a very effective protection against the effects of heat.
- a deflecting roller and the refractory band can contain a pipe feed, via which, in the event of fire, the room 13 has a pourable insulating material, e.g. B. expanded mica is supplied.
- a shut-off device in the pipe feed which opens automatically when exposed to heat, the insulating material slips out of a container through corresponding passages in the deflection roller and in the refractory band into the space 13 between the band sections and insulates them fire-resistant.
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Building Environments (AREA)
- Special Wing (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Insulated Conductors (AREA)
- Fire Alarms (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung nach dem Oberbegriff des Anspruchs 1. Eine solche Vorrichtung ist aus WO-A-9402208 bekannt.The invention relates to a device according to the preamble of claim 1. Such a device is known from WO-A-9402208.
Den einschlägigen Bauvorschriften entsprechend werden Gebäude üblicherweise in einzelne feuerbeständige Brandabschnitte unterteilt. Derartige Brandabschnittstrennungen bestehen aus raumabschließenden feuerbeständigen Bauteilen, wie z. B. Wänden oder Decken.According to the relevant building regulations, buildings are usually divided into individual fire-resistant fire sections. Such fire compartment partitions consist of space-enclosing fire-resistant components, such as. B. walls or ceilings.
In den Brandabschnittstrennungen müssen Öffnungen vorgesehen werden, wenn dies betriebsbedingt notwendig ist. Diese Öffnungen heben den feuerbeständigen Raumabschluß durch die Brandabschnittstrennung zunächst wieder auf. Es ist daher erforderlich, die Öffnungen im Brandfall mit speziellen Feuerschutzabschlüssen automatisch zu verschließen, wobei diese die gleiche Schutzwirkung wie die Brandabschnittstrennungen selbst haben müssen. Derartige Feuerschutzabschlüsse sind bekannt in Form von starren Klappen, Drehflügeltüren oder Schiebeelementen, die im Brandfall vor die Öffnung gefahren werden. Bei diesen Konstruktionen besteht im Bereich der Öffnungen ein erheblicher Platzbedarf. Auch haben diese Dichtelemente ein erhebliches Gewicht, so daß die Gesamtkonstruktion sehr stabil und schwer ist. Die Antriebs- und Schließsysteme sind relativ kompliziert, um die bauaufsichtlich vorgeschriebenen Schließ- und Öffnungsfunktionen zu gewährleisten.Openings must be provided in the fire compartment partitions if this is necessary for operational reasons. These openings initially cancel the fire-resistant room closure by separating the fire compartments. It is therefore necessary to automatically close the openings in the event of a fire with special fire protection closures must have the same protective effect as the fire compartment partitions themselves. Such fire protection closures are known in the form of rigid flaps, swing doors or sliding elements which are moved in front of the opening in the event of a fire. With these constructions, a considerable amount of space is required in the area of the openings. These sealing elements also have a considerable weight, so that the overall construction is very stable and heavy. The drive and locking systems are relatively complicated to ensure the closing and opening functions prescribed by the building authorities.
Es sind auch Feuerschutzabschlüsse zum Verschließen von Öffnungen, die von Rohren durchgriffen werden, bekannt. Hierbei werden Vorrichtungen verwendet, durch die in einer komplizierten und technisch aufwendigen Weise die Rohre im Brandfall getrennt werden, um das Feuerschutzelement vor die Öffnung bewegen zu können.Fire protection closures for closing openings through which pipes pass are also known. Devices are used here by which the pipes are separated in the event of a fire in a complicated and technically complex manner in order to be able to move the fire protection element in front of the opening.
Es ist daher die Aufgabe der vorliegenden Erfindung, eine Vorrichtung zum feuerfesten Verschließen einer Öffnung in einer Brandabschnittstrennung in einem Gebäude mit einem im Brandfall selbsttätig vor die Öffnung schiebbaren feuerfesten Element zu schaffen, die wenig Platz beansprucht, ein geringes Gewicht besitzt, ein einfaches Antriebssystem erfordert und kostengünstig herzustellen ist.It is therefore the object of the present invention to provide a device for the refractory closing of an opening in a fire compartment separation in a building with a refractory element which can be pushed in front of the opening in the event of a fire and which takes up little space, has a low weight and requires a simple drive system and is inexpensive to manufacture.
Diese Aufgabe wird erfindungsgemäß gelöst durch die im kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmale. Vorteilhafte Weiterbildungen der erfindungsgemäßen Vorrichtung ergeben sich aus den Unteransprüchen.This object is achieved by the features specified in the characterizing part of claim 1. Advantageous developments of the device according to the invention result from the subclaims.
Dadurch, daß das feuerfeste Element aus einem umlaufenden Band besteht, welches mindestens zwei den Öffnungen in der Brandabschnittstrennung entsprechende Löcher hat, die im Normalfall mit der Öffnung fluchtend einander gegeüberliegend angeordnet sind, und die im Brandfall aus dem Deckungsbereich der Öffnung herausgeschoben sind, kann der für das Element in der Normalstellung benötigte Platz (Parkplatz) extrem klein gehalten werden. Das Element kann beispielsweise aus Blech oder einem feuerfesten Textil- oder Keramikgewebe bestehen. Um dem Brand für eine vorgeschriebene Dauer zu widerstehen, ist das Blech auf der der Brandseite abgewandten Seite durch eine Kühlvorrichtung kühlbar. Auch das Textil- oder Keramikgewebe kann auf einer oder auch beiden Seiten zusätzliche vor der Brandeinwirkung schützende Materialien tragen, die die Flexibilität des feuerfesten Elementes nicht oder nur unwesentlich beeinträchtigen.Characterized in that the refractory element consists of a circumferential band, which has at least two holes corresponding to the openings in the fire separation, which are normally aligned with the opening opposite each other, and which are pushed out of the area of coverage of the opening in the event of fire, the space (parking space) required for the element in the normal position can be kept extremely small. The element can for example consist of sheet metal or a fire-resistant textile or ceramic fabric. In order to withstand the fire for a prescribed duration, the sheet on the side facing away from the fire side can be cooled by a cooling device. The textile or ceramic fabric can also carry additional materials that protect against the effects of fire on one or both sides, which do not or only insignificantly impair the flexibility of the refractory element.
Die Kühleinrichtung zum Kühlen des Blechs weist vorteilhaft ein Material auf, das chemisch gebundenes Wasser enthält, welchem im Brandfall freigesetzt und verdampft wird.The cooling device for cooling the sheet advantageously has a material which contains chemically bound water, which is released and evaporated in the event of a fire.
Die Erfindung wird im folgenden anhand von in den Figuren dargestellten Ausführungsbeispielen näher erläutert. Es zeigen:
- Fig. 1 -
- einen Feuerschutzabschluß nach der Erfindung gemäß einem Schnitt I-I in Figur 2,
- Fig. 2 -
- den Feuerschutzabschluß gemäß einem Schnitt II-II in Figur 1,
- Fig. 3 -
- den Feuerschutzabschluß gemäß einem Schnitt III-III in Figur 1,
- Fig. 4 -
- eine Umlenkrolle in dem Feuerschutzabschluß nach Figur 1 in der Seiten- und der Vorderansicht,
- Fig. 5 -
- das umlaufende Blechband in dem Feuerschutzabschluß nach Figur 1 in perspektivischer Ansicht, und
- Fig. 6 -
- eine andere Ausbildung des flexiblen Elements.
- Fig. 1 -
- a fire protection closure according to the invention according to a section II in Figure 2,
- Fig. 2 -
- the fire protection closure according to a section II-II in Figure 1,
- Fig. 3 -
- the fire protection closure according to a section III-III in Figure 1,
- Fig. 4 -
- a deflection roller in the fire protection closure according to Figure 1 in side and front view,
- Fig. 5 -
- the circumferential metal strip in the fire protection closure according to Figure 1 in a perspective view, and
- Fig. 6 -
- a different design of the flexible element.
In einer Gebäudewand 1 ist eine beispielsweise für den Durchgang von transportierten Gütern bestimmte Öffnung 2 vorgesehen. Vor dieser Öffnung 2 befindet sich ein an der Wand 1 befestigter Feuerschutzabschluß mit einem kastenförmigen Gehäuse 3, das die Öffnung 2 vollständig umgibt. Das Gehäuse 3 besteht aus dünnem Blech und weist auf gegenüberliegenden Seiten Löcher 4 auf, die mit der Öffnung 2 fluchten, so daß der Durchgang der Güter durch das Gehäuse 3 nicht beeinträchtigt wird.In a building wall 1, an opening 2 is provided, for example, for the passage of transported goods. In front of this opening 2 there is a fire protection closure fastened to the wall 1 with a box-shaped housing 3 which completely surrounds the opening 2. The housing 3 consists of thin sheet metal and has holes 4 on opposite sides which are aligned with the opening 2, so that the passage of the goods through the housing 3 is not impaired.
Das Gehäuse 3 ist auf der Innenseite mit Isolierplatten 5 ausgekleidet, die sehr stark wasserhaltig sind. Das Wasser ist chemisch gebunden, wie beispielsweise in Gipskartonplatten. Unter Wärmeeinwirkung im Brandfall wird das chemisch gebundene Wasser freigesetzt und kann verdampfen, so daß die Isolierplatten 5 im Brandfall eine starke Kühlwirkung auf ihre Umgebung ausüben. Die Isolierplatten 5 werden in ihrer Masse und ihrer Beschaffenheit so ausgebildet, daß der zur Kühlung zur Verfügung stehende Wasserhaushalt der jeweils geforderten Feuerwiderstandsdauer angepaßt ist.The housing 3 is lined on the inside with insulating plates 5, which are very strongly water-containing. The water is chemically bound, such as in plasterboard. Under the action of heat in the event of a fire, the chemically bound water is released and can evaporate, so that the insulating plates 5 exert a strong cooling effect on their surroundings in the event of a fire. The insulating plates 5 are designed in their mass and nature so that the water balance available for cooling is adapted to the fire resistance duration required in each case.
Das mit den Isolierplatten 5 ausgekleidete Gehäuse 3 bildet einen Hohlraum 6, in welchem der eigentliche Feuerschutzabschluß untergebracht ist.The housing 3 lined with the insulating plates 5 forms a cavity 6 in which the actual fire protection closure is accommodated.
Das Verschließen der Öffnung 2 wird durch ein umlaufendes Blechband 7 bewirkt, dessen entgegengesetzt laufende Abschnitte in gegenseitigem Abstand parallel zur Öffnung 2 liegen. In das Blechband 7 sind zwei Löcher von der Größe der Löcher 4 bzw. der Öffnung 2 geschnitten, die in Längsrichtung des Blechbandes 7 einen solchen Abstand voneinander aufweisen, daß sie in einer bestimmten Stellung (Normalstellung oder Öffnungsstellung) in den beiden entgegengesetzt laufenden Abschnitten einander gegenüberliegen und mit der Öffnung 2 bzw. den Löchern 4 fluchten, so daß sie in dieser Stellung den Durchgang der Güter ebenfalls nicht beeinträchtigen. Der Abstand zwischen den Löchern 8 ist mindestens so groß wie die Breite der Öffnung 2 in Umlaufrichtung des Blechbandes 7.The opening 2 is closed by a circumferential metal strip 7, the opposite running sections of which lie parallel to the opening 2 at a mutual distance. In the sheet metal strip 7 two holes are cut the size of the holes 4 and the opening 2, which are spaced from one another in the longitudinal direction of the sheet metal strip 7 such that they are in a certain position (normal position or open position) in the two opposing sections opposite and aligned with the opening 2 or the holes 4, so that they also do not interfere with the passage of the goods in this position. The distance between the holes 8 is at least as large as the width of the opening 2 in the circumferential direction of the metal strip 7.
Das Blechband 7 wird über zwei Umlenkrollen 9 geführt, die sich auf einander gegenüberliegenden Seiten der Öffnung 2 befinden. Die Umlenkrollen 9 weisen an den äußeren Rändern jeweils einen Kranz aus Nocken 10 auf, die in an den Längsrändern des Blechbandes 7 ausgestanzte Schlitze 11 eingreifen. Hierdurch wird eine formschlüssige Verbindung geschaffen, durch die das Blechband 7 geführt und auch über die Umlenkrollen 9 verschoben werden kann. Hierzu ist eine der Umlenkrollen 9 mit einem in bekannter Weise im Brandfall auslösbaren Antrieb verbunden. Die Umlenkrollen 9 sind auf einem Trägersystem verstellbar angeordnet, welches wiederum in dem Gehäuse 3 befestigt ist.The sheet metal strip 7 is guided over two deflection rollers 9, which are located on opposite sides of the opening 2. The deflecting rollers 9 each have a ring of cams 10 on the outer edges, which engage in slots 11 punched out on the longitudinal edges of the metal strip 7. This creates a positive connection through which the sheet metal strip 7 can be guided and also moved over the deflection rollers 9. For this purpose, one of the deflection rollers 9 is connected to a drive which can be triggered in a known manner in the event of a fire. The deflection rollers 9 are adjustably arranged on a carrier system, which in turn is fastened in the housing 3.
Um Verbiegungen oder Verwerfungen des Blechbandes 7 während der Bewegung zu vermeiden, wird dieses vorzugsweise seitlich geführt. Diese Führung kann durch eine stützende Unterlage oder auch durch eine Kette erfolgen. Die Kette verläuft parallel zur Kante des Blechbandes 7 und ist mit diesem in Eingriff, so daß der Antrieb des Blechbandes 7 auch über die Kette erfolgen kann.In order to avoid bending or warping of the sheet metal strip 7 during the movement, it is preferably guided laterally. This guidance can be done by a support or by a chain. The chain runs parallel to the edge of the sheet metal strip 7 and is in engagement with it, so that the sheet metal strip 7 can also be driven via the chain.
Die Arbeitsweise der vorbeschriebenen Vorrichtung ist wie folgt. Im normalen Betriebszustand wird das Blechband 7 so positioniert, daß ein freier Durchgang des Brandabschnittes von einer Seite zur anderen vorhanden ist. Bei der Erfassung eines Brandfalles wird eine der Umlenkrollen 9 durch einen mechanischen Schließantrieb so weit gedreht, daß das mitgenommene Blechband 7 eine Position erreicht, in der die Löcher 8 vollständig aus dem Deckungsbereich der Öffnung 2 herausgefahren sind, so daß diese durch die beiden entgegengesetzt laufenden Abschnitte des Blechbandes 7 hermetisch abgeschlossen ist.The operation of the device described above is as follows. In the normal operating state, the metal strip 7 is positioned so that there is a free passage of the fire section from one side to the other. When a fire is detected, one of the deflection rollers 9 is rotated by a mechanical closing drive so far that the sheet metal strip 7 which has been taken along reaches a position in which the holes 8 have completely moved out of the area of coverage of the opening 2, so that they run in opposite directions through the two Sections of the metal strip 7 is hermetically sealed.
Die Vorrichtung ist so ausgebildet, daß die Öffnung 2 durch das Blechband 7 ohne großen Kraftaufwand und mit geringem Verschleiß geschlossen und geöffnet werden kann, ohne daß ein Brandfall vorliegt.The device is designed so that the opening 2 can be closed and opened by the sheet metal strip 7 without great effort and with little wear and tear, without a fire occurring.
Zwischen den beiden entgegengesetzt laufenden Abschnitten des Blechbandes 7 ist zu beiden Seiten der Öffnung 2 eine Kühlvorrichtung aus einem Dichtungsblock angeordnet, der wie die Isolierplatten 5 aus einem Wasser in chemisch gebundener Form enthaltenden und bei Wärmeeinwirkung freisetzenden Material besteht. Der Dichtungsblock 12 wird zu dem vor der Öffnung 2 befindlichen Raum 13 zwischen den beiden entgegengesetzt laufenden Abschnitten des Blechbandes 7 hin durch ein Lochblech 14 abgeschlossen. Im Brandfall strömt der durch Freisetzen und Verdampfen von Wasser erzeugte Wasserdampf aus dem Dichtungsblock 12 durch die Öffnungen des Lochblechs 14 in den Raum 13, wodurch das die Öffnung 2 verschließende Blechband 7 auf der der Brandseite abgewandten Seite für eine vorgegebene Dauer gekühlt wird. Dadurch wird die Widerstandsfähigkeit des Blechbandes 7 gegen den Feuerangriff gestärkt und auf der der Brandseite abgewandten Seite eine Absenkung der Temperatur erzielt.Between the two oppositely running sections of the sheet metal strip 7, a cooling device made of a sealing block is arranged on both sides of the opening 2 and, like the insulating plates 5, consists of a material containing water in chemically bound form and releasing it when exposed to heat. The sealing block 12 becomes the space 13 in front of the opening 2 between the two opposite running sections of the sheet metal strip 7 completed by a perforated plate 14. In the event of a fire, the water vapor generated by the release and evaporation of water flows out of the sealing block 12 through the openings in the perforated plate 14 into the space 13, as a result of which the sheet metal strip 7 closing the opening 2 is cooled for a predetermined duration on the side facing away from the fire side. As a result, the resistance of the sheet metal strip 7 to the fire attack is strengthened and a lowering of the temperature is achieved on the side facing away from the fire side.
Für eine verbesserte und gezieltere Abgabe von Wasserdampf aus dem Dichtungsblock 12 sowie den Isolierplatten 5 sind diese mit feinen Bohrungen 15 durchsetzt, die in Richtung des Raumes 13 münden. Da der ausgeströmte Wasserdampf durch die Einwirkung des Feuers eine Temperatur von mehreren hundert Grad erreichen kann, kommt es zu einem entsprechenden Druckanstieg. Die Bohrungen 15 dienen daher auch zur Druckentlastung.For an improved and more targeted delivery of water vapor from the sealing block 12 and the insulating plates 5, these are interspersed with fine bores 15 which open in the direction of the room 13. Since the outflow of water vapor can reach a temperature of several hundred degrees due to the action of the fire, the pressure rises accordingly. The holes 15 therefore also serve to relieve pressure.
Zwischen dem Blechband 7 und den Isolierplatten 5 sind angrenzend an dem Raum 13 Führungsblech 16 aus Metall vorgesehen, die dazu dienen, einen Abrieb der abriebschwachen Isolierplatten 5 durch das Blechband 7 zu verhindern. Hinter den Führungsblechen 16 befinden sich Streifen 17 aus feuerfestem, bei Wärmeeinwirkung aufschäumendem Material. Im Normalzustand haben diese Streifen 17 keine Berührung mit dem Blechband 7. Im Brandfall vergrößert sich jedoch ihr Volumen, so daß sie gegen das in seine Schließstellung bewegte Blechband 7 drücken und eine sichere Abdichtung zwischen der heißen Brandseite im Bereich der Öffnung 2 und dem Hohlraum 6, in dem die Umlenkrollen 9 und deren Lagerung untergebracht sind, bewirken.Between the sheet metal strip 7 and the insulating plates 5, adjacent to the space 13, guide plates 16 made of metal are provided, which serve to prevent abrasion of the low-wear insulating plates 5 by the sheet metal strip 7. Behind the guide plates 16 there are strips 17 made of refractory material that foams up when exposed to heat. In the normal state, these strips 17 have no contact with the sheet metal strip 7. In the event of a fire, however, their volume increases so that they press against the sheet metal strip 7 moved into its closed position and a secure seal between the hot fire side in the area of the opening 2 and the cavity 6 in which the pulleys 9 and their storage are housed.
Die gesamte Konstruktion des Feuerschutzabschlusses wird mit Bolzen 18 und Muttern 19 zusammengeschraubt. Mit dieser Verschraubung ist auch der Träger 20 für die Umlenkrollen 9 verbunden.The entire construction of the fire protection closure is screwed together with bolts 18 and nuts 19. The carrier 20 for the deflecting rollers 9 is also connected to this screw connection.
Im dargestellten Ausführungsbeispiel ist auf beiden Seiten der Wand 1 jeweils ein Rohr 21 angeflanscht, so daß der gezeigte Feuerschutzabschluß auch für pneumatische Förderanlagen zum Transport von Schwebstoffen verwendet werden kann. Für diese ist die vorliegende Konstruktion besonders geeignet, da sich wegen der geringen Abmessungen bzw. Dicke des Blechbandes 7 keine Unebenheiten im Durchgang ergeben. Diese können zu Schwebstoffablagerungen führen, welche im Brandfall das Schließen des Feuerschutzabschlusses verhindern können.In the illustrated embodiment, a pipe 21 is flanged on both sides of the wall 1, so that the fire protection closure shown can also be used for pneumatic conveying systems for transporting suspended matter. The present construction is particularly suitable for these, since there are no unevenness in the passage due to the small dimensions or thickness of the metal strip 7. These can lead to sediment deposits, which can prevent the fire protection closure from closing in the event of a fire.
In der Ausführung nach Figur 6 besteht das feuerfeste Element aus einem Gewebeband 22 aus textilem oder Keramikmaterial. Dieses Gewebeband 22 arbeitet ohne Wasserdampfkühlung. Es kann gegebenenfalls allein verwendet werden; jedoch wird es in den meisten Fällen als Trägermaterial für sogenannte Schutzraupen 23, 24 benutzt. Figur 6 zeigt auf der Außenseite des Gewebebandes 22 angebrachte Schutzraupen 23 sowie auf der Innenseite des Gewebebandes 22 angebrachte Schutzraupen 24, die jeweils für sich allein oder auch gemeinsam vorgesehen sein können. Die Schutzraupen 23, 24 werden mit handelsüblichen Materialien an dem Gewebeband 22 befestigt. Sie sind so konstruiert und angeordnet, daß sie ohne gegenseitige Behinderung oder Behinderung durch die Umlenkrollen 9 über diese geführt werden können.In the embodiment according to FIG. 6, the refractory element consists of a fabric band 22 made of textile or ceramic material. This fabric band 22 works without water vapor cooling. It can be used alone if necessary; however, in most cases it is used as a carrier material for so-called protective beads 23, 24. FIG. 6 shows protective beads 23 attached to the outside of the fabric strip 22 and protective beads 24 attached to the inside of the fabric strip 22, which can be provided individually or together. The protective beads 23, 24 are attached to the fabric tape 22 using commercially available materials. They are constructed and arranged in such a way that they are without mutual hindrance or disability can be performed by the pulleys 9 on this.
Die außen angebrachten Schutzraupen 23 können aus mit Isoliermaterial gefüllten Blechkörpern bestehen. Sie können auch aus einem feuerfesten Material gebildet sein, das bei Hitzeeinwirkung aufschäumt und hierdurch einen geschlossenen Schutzschild darstellen.The outside caterpillars 23 can consist of sheet metal bodies filled with insulating material. They can also be made of a refractory material that foams when exposed to heat and thereby represent a closed protective shield.
Die innen angebrachten Schutzraupen 24 müssen aus einem feuerfesten Material bestehen, das bereits bei relativ geringer Wärmeeinwirkung (> 120° C) sehr stark aufschäumt. Die Aufschäumung erfolgt nach innen, so daß der gesamte Raum 13 zwischen den einander gegenüberliegenden Bandabschnitten mit Schaum 25 ausgefüllt wird. Dieser ist ein sehr wirksamer Schutz gegen Hitzeeinwirkung.The caterpillars 24 attached on the inside must consist of a refractory material which foams very strongly even with relatively little heat (> 120 ° C.). The foaming takes place inwards, so that the entire space 13 between the opposing band sections is filled with foam 25. This is a very effective protection against the effects of heat.
In einer weiteren Ausführung können eine Umlenkrolle und das feuerfeste Band eine Rohrzuführung enthalten, über die im Brandfall dem Raum 13 ein schüttfähiges Isoliermaterial, z. B. Blähglimmer, zugeführt wird. Über eine Absperrvorrichtung in der Rohrzuführung, die sich bei Wärmeeinwirkung selbsttätig öffnet, rutscht das Isoliermaterial aus einem Behälter durch entsprechende Durchgänge in der Umlenkrolle und im feuerfesten Band in den Raum 13 zwischen den Bandabschnitten und isoliert diesen feuerbeständig.In a further embodiment, a deflecting roller and the refractory band can contain a pipe feed, via which, in the event of fire, the room 13 has a pourable insulating material, e.g. B. expanded mica is supplied. Via a shut-off device in the pipe feed, which opens automatically when exposed to heat, the insulating material slips out of a container through corresponding passages in the deflection roller and in the refractory band into the space 13 between the band sections and insulates them fire-resistant.
Claims (18)
- Device for fireproof closure of an opening (2) in a sectional fire separation (1) in a building comprising a fireproof element (7, 22) which is in case of fire automatically pushed in front of the opening (2), characterised in that the fireproof element is composed of a flexible continuous belt (7, 22) with at least two holes (8) which correspond with the openings (2) in the sectional fire separation (1) and which are in a normal case arranged opposite each other and flush with the opening (2) which are in case of fire pushed out of the coverage area of the opening (2).
- Device according to Claim 1, characterised in that the belt (7, 22) is guided on two rollers (9) which are arranged on two respective opposite sides of the opening (2).
- Device according to Claim 2, characterised in that at least one of the rollers (9) is in case of fire rotary by a closing mechanism and provided with at least one outer cam rim (10) which engages respectively designed slots (11) arranged along at least one edge of the continuous belt (7, 22).
- Device according to Claim 2, characterised in that the belt (7, 22) is guided so as to be supported at its longitudinal edges.
- Device according to one of Claims 1 to 4, characterised in that it comprises a boxshaped housing (3) which encases the fireproof element (7, 22) and which is provided with holes (4) arranged flush with the opening (2) and opposite each other.
- Device according to Claim 5, characterised in that the boxshaped housing (3) has a lining (5) of a material which contains chemically bound water.
- Device according to Claim 5 or 6, characterised in that inside the housing (3) outside the opening area between the continuous belt (7, 22) and the insulation facing it are provided strips (17) of a material which foams when heated.
- Device according to one of Claims 1 to 7, characterised in that pipes (21) of a pneumatic conveying unit are guided to the opening (2) on both sides of the sectional fire separation (1).
- Device according to one of Claims 1 to 8, characterised in that the fireproof element (7) is made of sheet metal and cooled by a cooling unit (12) at the side facing away from the side of fire.
- Device according to Claim 9, characterised in that the cooling unit (12) comprises a material which contains chemically bound water which is in case of fire released and evaporated.
- Device according to Claim 8 or 9, characterised in that the cooling unit (12) is arranged inside the continuous belt (7).
- Device according to Claim 10 or 11, characterised in that the water which has been released and evaporated in the cooling unit (12) is delivered to the fireproof element (7) by way of a perforated metal sheet (14).
- Device according to one of Claims 10 to 12, characterised in that the material (5, 12) which contains the chemically bound water is passed through by bores (15) which terminate in the direction of space (13) which is enclosed by the continuous belt (7).
- Device according to one of Claims 1 to 8, characterised in that the fireproof element (22) is made of a textile fabric or a ceramic fabric.
- Device according to Claim 14, characterised in that the textile fabric or the ceramic fabric carries on the side of fire protective fins (23) which protect from the effects of fire.
- Device according to Claim 15, characterised in that the protective fins (23) are made of sheet metal bodies which are filled with insulating material or a material which foams under the effect of heat.
- Device according to one of Claims 14 to 16, characterised in that the textile fabric or the ceramic fabric of the continuous belt (22) carries on the side facing away from the side of fire a material (24) which foams up under the effect of relatively low heat.
- Device according to one of Claims 1 to 8, characterised in that provision is made for a device, which automatically opens in case of fire, for delivery of fireproof bulk insulating material to the space (13) which is surrounded by the continuous belt (7, 22).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19613006 | 1996-03-21 | ||
| DE19613006A DE19613006C2 (en) | 1996-03-21 | 1996-03-21 | Device for the refractory closing of an opening |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0796638A2 EP0796638A2 (en) | 1997-09-24 |
| EP0796638A3 EP0796638A3 (en) | 1998-02-25 |
| EP0796638B1 true EP0796638B1 (en) | 2001-09-19 |
Family
ID=7790153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97250091A Expired - Lifetime EP0796638B1 (en) | 1996-03-21 | 1997-03-20 | Fire damper |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0796638B1 (en) |
| AT (1) | ATE205737T1 (en) |
| DE (2) | DE19613006C2 (en) |
| DK (1) | DK0796638T3 (en) |
| ES (1) | ES2164300T3 (en) |
| PT (1) | PT796638E (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009039265A1 (en) | 2009-08-28 | 2011-03-24 | Bartholomäus, Gert | Closing device for overflow openings in solid wall of building, has closure element moved from throughflow opening in case of fire, where closure element consists of coilable sheet material, which is rolled or unrolled on winding shaft |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009048008A1 (en) * | 2009-10-02 | 2011-04-07 | Schulte & Todt Systemtechnik Gmbh & Co.Kg | Device for closing opening of ventilation line in e.g. wall during fire, has locking unit comprising two areas that are arranged in front of opening in wall or ceiling in respective conditions, where locking unit is designed as foil |
| DE102010014459A1 (en) | 2010-04-09 | 2012-05-10 | Stöbich Brandschutz GmbH | Fire or smoke protection cover for an opening |
| DE102011116281A1 (en) * | 2011-10-19 | 2013-04-25 | Stöbich Brandschutz GmbH | Fire or smoke protection device for closing a ceiling opening |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE101786C (en) * | ||||
| GB1449432A (en) * | 1974-01-28 | 1976-09-15 | Isobe M | Equipment for preventing the spread of a fire |
| DE8313824U1 (en) * | 1983-05-10 | 1983-11-10 | Stöbich Brandschutz GmbH, 3380 Goslar | FIRE CLOSURE FOR A CEILING BREAKTHROUGH OF A PATERNOSTER CONVEYING SYSTEM |
| GB2269097B (en) * | 1992-07-23 | 1996-05-01 | Environmental Seals Ltd | Improvements in or relating to fire barriers |
-
1996
- 1996-03-21 DE DE19613006A patent/DE19613006C2/en not_active Expired - Fee Related
-
1997
- 1997-03-20 DE DE59704634T patent/DE59704634D1/en not_active Expired - Lifetime
- 1997-03-20 ES ES97250091T patent/ES2164300T3/en not_active Expired - Lifetime
- 1997-03-20 AT AT97250091T patent/ATE205737T1/en not_active IP Right Cessation
- 1997-03-20 PT PT97250091T patent/PT796638E/en unknown
- 1997-03-20 EP EP97250091A patent/EP0796638B1/en not_active Expired - Lifetime
- 1997-03-20 DK DK97250091T patent/DK0796638T3/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009039265A1 (en) | 2009-08-28 | 2011-03-24 | Bartholomäus, Gert | Closing device for overflow openings in solid wall of building, has closure element moved from throughflow opening in case of fire, where closure element consists of coilable sheet material, which is rolled or unrolled on winding shaft |
| DE102009039265B4 (en) * | 2009-08-28 | 2017-06-29 | Gert Bartholomäus | Closing device for overflow openings with rollable closure element |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0796638A2 (en) | 1997-09-24 |
| DK0796638T3 (en) | 2002-01-14 |
| ATE205737T1 (en) | 2001-10-15 |
| DE19613006A1 (en) | 1997-09-25 |
| PT796638E (en) | 2002-03-28 |
| DE59704634D1 (en) | 2001-10-25 |
| EP0796638A3 (en) | 1998-02-25 |
| ES2164300T3 (en) | 2002-02-16 |
| DE19613006C2 (en) | 2000-07-27 |
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