WO2003080188A1

WO2003080188A1 - Gate arrangement with a fire-protection function and fast operation function

Info

Publication number: WO2003080188A1
Application number: PCT/EP2003/003148
Authority: WO
Inventors: Petra Rejc; Jochen Stöbich; Steffan Siller
Original assignee: Efaflex Tor-Und Sicherheitssysteme Gmbh & Co. Kg; Stöbich Brandschutz GmbH & Co. KG
Priority date: 2002-03-27
Filing date: 2003-03-26
Publication date: 2003-10-02
Also published as: AU2003222782A1; DE10213811A1; DE10213811B4

Abstract

The invention relates to a gate arrangement (1) with a motor driven fire curtain (31) for sealing a gate opening in industrial buildings or the like in case of a blaze, whereby the gate arrangement (1) fulfils fire resistance specifications when acting as a fire seal. A motor-driven fast operation gate (2) is arranged on the side of the gate on which the fire curtain (31) is disposed, said gate being preferably provided with armored slats (21), acting as a regular closure for the gate opening between successive thoroughfares, whereupon the fire curtain (31) and the fast operation gate (2) are guided in a common frame (4) and can be controlled by a common control unit such that they can move independently from each other. The inventive gate arrangement (1) is embodied in such a way that no inflammable objects are present on both sides of the fire curtain (31) inside the fire-load-free area in order to meet fire-protection requirements.The invention makes it possible, for the first time ever, to provide a gate arrangement which can be considered as a fully effective gate closure both in respect to fire protection requirements and fast operation characteristics, said arrangement being both compact and easy to install.

Description

description

Gate arrangement with fire protection and quick opening function

The invention relates to a door assembly having motor-driven Brandschutzbehang the conclusion of a door opening in industrial buildings or the like. In the ^'case of fire so that the fire door assembly fulfilled completion fire resistance classes.

Fire protection door arrangements are known from practice, which are often designed as roller shutters with flexible fire protection curtains. With these fire protection door arrangements, a room closure with a high fire resistance effect is to be produced even in the smallest of spaces. Three criteria are used to assess the fire resistance: First, the fire protection door arrangement must have sufficient inherent stability to be able to maintain the room closure at least for a predetermined period of time even in the event of a fire. Another criterion is the flame resistance, ie the period until flames can penetrate to the other side of the gate. The third criterion is the insulation effect of the fire protection curtain, whereby the temperature on the side away from the fire must not rise by more than 180 K. While the sensible heat, which is transmitted via the air by convection, decreases very quickly behind the fire protection curtain by exchanging heat with the surroundings, the heat radiation has a far-reaching effect, since it has only a slight interaction with the surrounding air space. The energy dissipated by the radiation thus strikes the neighboring system components almost uninhibitedly, where it changes into sensible warmth. The temperature rise and the risk of ignition of neighboring parts on the side facing away from the fire therefore depend to a large extent on this. Since the passage of a certain radiation power to the other side cannot be completely prevented, fire-free zones on both sides of the fire protection curtain are also mandatory, in which no flammable objects may be present. Depending on which criteria the fire protection curtain fulfills, this fire load-free zone is of different sizes, whereby it is 1 to 2 m for a conventional flame-arresting curtain.

The fire protection curtain essentially meets the requirements of

Fire resistance classes of the door arrangement, which is why it generally has a relatively high weight. Such a fire protection gate arrangement can therefore only be operated relatively slowly at, for example, 0.2 m / s. In practice, however, this is of minor importance, since the fire protection curtain usually remains wound up in the lintel area of the gate opening and is only closed once a month for test purposes. In the event of a fire, it is triggered automatically as soon as sensors detect smoke or heat. It then rolls either under its own weight or driven by a winding motor. When closed, this fire protection door arrangement fulfills the fire resistance classes according to DIN 4102. An example of such a fire protection door is known in practice as "stöbich System Fibershield". Another criterion is the fire resistance, that is, that the space-closing effect of the fire barriers is preserved and that Passage of fire prevented.

However, such fire protection door arrangements have the disadvantage that they are generally open. In order to enable the door opening to be closed between successive passages, a further industrial door is arranged in addition to these fire protection door arrangements. which in some applications is designed to be snow-so that this additional gate arrangement is usually closed. For this purpose, for example, folding gates or - because the fire protection curtain is also designed as a rolling gate - rolling gates with flexible curtains or spiral gates with slat armor can be used. This achieves the goal, on the one hand, of providing a fully effective fire protection curtain and, on the other hand, of an equally fully effective quick curtain at a door opening.

However, since a fire protection door and a high-speed door are fundamentally subject to different functional requirements and are each optimized with regard to them, these two door arrangements have so far been generally provided by different suppliers. For the user, this means that he must arrange two completely different and independent gate locking systems in the gate area. These can therefore not be combined with one another, so that, for example, in the case of passages between individual halls, the high-speed door is arranged on one side of the door opening and the fire protection door on the other side. However, this means that neither side of the door opening can be used completely for industrial purposes, since the respective door arrangement takes up considerable installation space.

Furthermore, it has so far been refrained from arranging a high-speed door immediately adjacent to a fire protection door, since flammable materials would thus be present within the required fire load-free zone (safety distance). It should be borne in mind here that, for example, a high-speed slat gate, as is known, inter alia, from DE 199 15 376 AI, contains components which are made of plastic, such as, for producing the desired high-speed properties. B. Rollers, sealing profiles between the individual slats, etc. An exchange of these components by which made of fireproof material is not possible without the fast-running function affect. For example, metal rollers etc. would be too heavy, which would lead to unfavorable dynamic conditions at the high operating speeds of generally 3 m / s. Such a high-speed door cannot therefore be converted into an industrial door that is suitable for fire technology.

On the other hand, however, it is also not possible to design fire protection gates as high-speed doors, since they have too large a mass due to their function and are therefore sluggish. Higher speeds would therefore be associated with higher accelerations, greater drive power and high reaction forces, which would mean a blatantly high design effort, especially in view of the high load change cycles. This is hardly economically feasible while maintaining the fire protection function. It should also be borne in mind that when using a fire protection door as a normal room closure, there is also a significantly higher risk of damage to the fire protection curtain than if it remains wound up permanently in the lintel area. In the event of such damage to the fire door curtain, for example by a forklift, the fire protection function could therefore no longer be guaranteed.

The invention is therefore based on the object of a generic

To further develop the door arrangement in such a way that it is completely effective both with regard to fire protection and the rapid-action properties and only takes up little installation space and can be installed easily.

This task is accomplished by a gate arrangement with the characteristics of

Claim 1 solved.

So it is inventively provided for the first time to arrange the speed door on the same side of the gate as the ^{'Brandschutzbehang} and in a to carry common frame. Furthermore, both door leaves have a common control unit with which they can be moved independently of one another. In addition, the door arrangement according to the invention is designed such that on both sides of the fire protection curtain there are no flammable objects within the fire load-free zone required to meet the fire protection regulations if the fire protection curtain is closed due to a fire alarm.

The integration of these two door leaves within a frame and the functional connection by means of a common control unit make it possible to significantly reduce the overall installation space required. At the same time, the door arrangement according to the invention can be offered as a delivery unit, as a result of which the logistics for the provision as well as the effort for the assembly and the wiring are significantly reduced.

Only one side of the door opening is covered by the invention

Door arrangement shows why the opposite side of the door for industrial

Is fully and unrestrictedly usable. At the same time, both can

Door leaves are still optimized with regard to their functional properties with regard to the respective application.

It is a further advantage that the high-speed door can be arranged adjacent to the fire protection curtain on the same door side without any design changes, since compliance with the required fire-free zone is ensured in the door arrangement according to the invention. The gate arrangement according to the invention is thus characterized by its compact structure, with both the fire protection function and a high speed for a repeated completion of the gate opening between successive passages being achieved in an optimal manner. Here, a fire-insulating roller door is already known from DE 38 15 493 AI, which has two roller door armor. In this roller door, however, both roller door armatures are rolled up and down on a common winding shaft, and the fire-insulating effect is produced in the interaction of the two roller door armatures with the space formed by the distance between them. These two roller shutter curtains can therefore be viewed functionally as a fire protection curtain that is divided into different components. Furthermore, from DE 196 46 909 AI a roller shutter stem element is known, which has a winding shaft for a roller shutter curtain and a further winding shaft for an insect or sun protection curtain, which are integrated in a frame. Due to their intended use, these curtains are subject to entirely different requirements than the two door leaves of the door arrangement according to the invention. This becomes clear, for example, from the fact that the insect or standard protection curtain can be operated manually. With a fire protection curtain, this is hardly possible due to the weight. In addition, a fire protection curtain must also be ensured that it is triggered automatically in an emergency. The construction of a roller shutter stem element resulting from DE 196 46 909 AI can therefore not be transferred to a door arrangement with a motor-driven fire protection curtain, which should also be provided with a high-speed door.

Advantageous developments of the door arrangement according to the invention are the subject of the dependent claims.

For example, the fire protection curtain can be designed to be flame-resistant, with the high-speed door opening automatically when the fire protection curtain closes. In this way, all flammable parts of the high-speed door are automatically moved out of the fire-free zone, as soon as a fire is registered. It is therefore possible according to the invention with simple control means, the desired ones

To produce fire protection properties. It should also be taken into account that the door leaf of the high-speed door can be moved at high speed, which is why the opening of the high-speed door is possible in a very short time. The high-speed door is thus moved according to the invention into a safety position which is completed in terms of fire technology and no longer plays a role in the fire protection behavior of the door arrangement according to the invention.

It is a further advantage if the automatic opening of the

High-speed doors, when the fire protection curtain closes, can be activated by the common control unit. This process can then be carried out in a particularly simple manner in terms of control technology, and in addition there is practically no delay in initiating the opening of the high-speed door.

Alternatively or in addition, it is also possible to provide a triggering device which is independent of an energy supply and which causes the high-speed door to open automatically when the fire protection curtain closes. In this way, even in the event of a power failure, as is often the case with fires, it can be ensured that the high-speed door is moved out of the fire-free zone. This triggering device can, for. B. be formed as a melting under the effect of heat, which makes it possible in the event of fire from a predetermined temperature or a predetermined duration of thermal action as a kind of "mechanical protection" that the biased towards the open position by weight compensation springs follow this bias can and opens. This ensures that the high-speed door arrives in a safety position in the event of a fire. Furthermore, it is also possible that sealing parts made of a material are arranged in the frame in the side guides and at the upper inlet of the high-speed door, which expands under the action of heat and fills the spaces in these openings of the frame with fire resistance. This ensures even more reliably that all guide components and other flammable parts of the high-speed door are reliably shielded, in particular also against the radiation power of the source of the fire. This improves the fire protection function of the door arrangement according to the invention, this being possible at the same time with little design effort and using materials known per se. In practice, the "FIREFLY" product range from TENMAT GmbH has proven to be particularly suitable for fire protection sealing parts. "FIREFLY 102", for example, is able to expand to 25 times its original thickness in the event of fire.

Alternatively or additionally, it is also possible for the

Fire protection curtain is designed to be insulating. This has the significant advantage that the dimensions of the fire-free zone on both sides of the fire protection curtain can be significantly reduced compared to a fire protection curtain that is only flame-resistant. Then it is possible to arrange the door leaf of the high-speed door relatively close to the fire protection curtain. The Schnellauf gate must therefore not necessarily be moved to the open position in the event of fire in this embodiment.

In practice, a fire protection curtain, which is preferably designed with insulated steel sheet profiles, has proven to be suitable for such an application.

The invention is explained in more detail below in exemplary embodiments with reference to the figures of the drawing. It shows: 1 shows a vertical section through a gate arrangement according to the invention; and

Fig. 2 shows a horizontal section through a gate arrangement according to the invention.

As shown in the figures, a door arrangement 1 contains a high-speed spiral door 2 with lamella armor 21 and a fire protection door 3 which has a flexible fire protection curtain 31. The high-speed spiral door 2 and the fire protection door 3 are accommodated in a common frame 4 and arranged on one side of a wall W in such a way that the fire protection door 3 is directly adjacent to a door opening in the wall W and the slat armor 21 of the high-speed spiral door 2 is in turn adjacent and further away from the wall W parallel to the fire protection curtain 31. Both the lamellar armor 21, which in this embodiment is designed in accordance with DE 199 15 376 AI, and the fire protection curtain 31 running parallel thereto, which in this example corresponds to that described in GB 2 332 860 A, create a space closure at the gate opening ,

The high-speed spiral door 2 and the fire protection door 3 are controlled and operated by a common control unit, not shown here, whereby they can be moved independently of one another. Here, the fire protection curtain 31 is usually wound up in the lintel area of the door opening, while the lamella armor 21 of the high-speed spiral door 2 can be closed between successive passages through the door opening to produce a closure of the door opening.

The rapid control spiral door 2 is opened in the event of a fire by the common control unit, which also triggers the fire door 3 and closes. For this purpose, each door has its own drive, which is controlled by the common control unit.

1 shows the case in which the fire protection curtain 31 is closed for test purposes or due to a fire. Since the fire protection curtain 31 is flame-resistant, but not insulating, the high-speed spiral door 2 is at the same time in its open position, i.e. the slat armor 21 only indicated here is wound up in the frame 4 in the lintel area. In this case, a lower end element 22 of the lamellar armor 21 is also moved into the lintel area, as shown in FIG. 1.

In order to effectively protect the high-speed spiral door 2 and in particular the flammable parts thereof from the radiation power of a source of fire, the following additional devices are arranged in the frame 4:

The winding area of the fire protection door 3 at the lintel of the door opening is separated from the winding area of the high-speed spiral door 2 by means of calcium silicate plates 51, 52 and 53 (cf. FIG. 1). The area of the lateral guides of the fire protection curtain 31 is isolated from the environment in terms of fire by means of additional calcium silicate plates 54 and 55 (cf. FIG. 2). In the area of the lateral guides between the fire protection curtain 31 and the slat armor 21, a mineral wool layer 61 is also arranged in the frame, with another mineral wool layer 62 being integrated in the frame 4 on the side of the slat armor 21 facing away from the fire protection curtain 31, as in FIG. 2 is shown. As a result, the running rails etc. of the high-speed spiral door 2 behind it are protected against the direct influence of heat. Furthermore, intumescent fire protection sealing parts 71 and 72 are arranged on the side surfaces of the lateral guide channels in the frame 4 for the lamellar armor 21, which, as shown in FIG. 2, have an essentially rectangular cross section and are parallel to the main surface of the lamellar armor 21 in the frame 4 extend. These sealing parts 71 and 72 also extend over the entire door height of the frame 4. Further fire protection sealing parts 73 and 74 are arranged in the frame 4 at the upper inlet area of the lamellar armor 21. These sealing parts 73 and 74 are also essentially rectangular in cross-section as shown in FIG. 1 and extend parallel to the main surface of the lamella armor 21 over the entire width of the door. The sealing parts 71 to 74 are made of a material which swells under the influence of heat, such as FIREFLY 102, which in the event of fire assumes a multiple of its original volume and reliably closes the lateral guide openings or the upper inlet of the lamellar armor 21 in terms of fire protection.

To further improve the fire protection properties of the door arrangement 1, further intumescent fire protection sealing parts 75 and 76 are arranged in the winding area of the high-speed spiral door 2 adjacent to the inlet opening in the frame 4, which reliably protect the wound lamella armor 21 against radiant heat and are in the form of a coating. When exposed to temperature, they create an insulation layer of approx. 40 mm thickness.

In addition to the illustrated embodiment, the invention leaves more

Design approaches too.

Thus, to open the high-speed door in the event of a fire, a triggering device in the manner of a “mechanical fuse” can also be provided, which a Moving the high-speed door out of the fire-load-free zone is also possible when the common control unit is no longer supplied with electricity and could no longer achieve this. This “mechanical lock” can be designed as a door closer with an electromagnetic locking device (locking magnet) or as a contact that melts under the influence of heat, and if it ceases to exist, the spring-loaded high-speed door automatically goes into its open position due to the pretension. In addition, the fire protection door 3 can also be coupled to the release device in this way be that the closing of the fire protection curtain 31 can be effected in the event of a fire without an external energy supply.

Furthermore, both gates can also use the same drive, in which case a coupling device controlled by the common control unit must be provided in order to make the movements of the two gates independent of one another.

In addition, the high-speed door can also have a flexible curtain instead of the slat armor.

In addition, other areas of the frame can also be used

Mineral wool layers and / or calcium silicate or gypsum boards or the like. Insulated by fire technology and also other openings in the frame are provided with swelling fire protection sealing parts.

In addition, it is also possible that the fire protection door 3 is designed to be insulating, so that the fire-free zone on both sides of the fire protection curtain is shortened in such a way that the high-speed door does not have to be opened in the event of a fire. Then it is possible, for example, that there is only a free space of 15 cm between the two door leaves without the high-speed door being within the fire-free zone emotional. In this way, a particularly compact design of the door arrangement can be realized, even if an insulating fire protection curtain is associated with a greater structural outlay both for the curtain and for the frame and is therefore considerably more expensive.

Claims

Expectations

1. gate arrangement (1) with self-closing or motor-driven fire protection curtain (31) for closing a gate opening on industrial buildings or the like in the event of fire in such a way that the gate arrangement (1) as fire closure fulfills the fire resistance classes according to DIN 4102,

characterized,

that on the side of the gate on which the fire protection curtain (31) is arranged, a motor-driven high-speed door (2), preferably with lamellar armor (21), is arranged as a regular closure of the door opening between successive passages in such a way that the fire protection curtain (31) and the high-speed door ( 2) in a common

Frame (4) guided and controlled by a common control unit so that they can be moved independently, and

that the door arrangement (1) is designed such that on both sides of the fire protection curtain (31) there are no flammable objects within the fire load-free zone required to meet the fire protection regulations.

2. Gate arrangement according to claim 1, characterized in that the fire protection curtain (31) is flame-resistant and the high-speed door (2) opens automatically and thus moves out of the fire-free zone when the fire protection curtain (31) closes.

3. Gate arrangement according to claim 2, characterized in that the automatic opening of the Schnellauf gate (2) when the fire protection curtain (31) closes can be effected by the common control unit.

4. Gate arrangement according to claim 2 or 3, characterized in that it has a trigger device independent of a power supply, such as. a door closer with an electromagnetic locking device (locking magnet), which causes the high-speed door (2) to open automatically when the fire protection curtain (31) closes.

5. Gate arrangement according to one of claims 2 to 4, characterized in that in the frame (4) in the side guides and at the upper inlet of the high-speed door sealing parts (71-76) are arranged from a material that expands under the influence of heat, in particular swells, and the

Fills free spaces in these openings in the frame (4).

6. Gate arrangement according to one of claims 1 to 5, characterized in that the fire protection curtain is insulated to achieve a reduced fire load-free zone.