DE10346331A1 - Building wall shutter e.g. window, locking units controlling method, involves triggering roll shutter to move upwards and smoke screen to move downwards upon receiving signal from central fire alarm system during e.g. fire in building - Google Patents

Abstract

Provided is a method and apparatus for controlling motorized closure elements of wall openings in buildings in the event of catastrophic events such. B. building fires comprising a movable gate element and a separate, preferably vertically movable smoke skirt, wherein in the circuit of an external contact in response to the detection of the catastrophic event, the gate element is fully opened and moves the smoke skirt in a defined, the catastrophic event corresponding closure position becomes.

Description

The This patent application relates to a method and a Device for controlling closure elements of wall openings in buildings, as described by the preamble of independent claim 1.

in the Trap of catastrophic events, especially in building fires one, zones of the building free of contamination to facilitate rescue work. It is desirable and even necessary, e.g. in case of fires the so-called low-smoke layer, i. the area in which little or no smoke is present, to keep at a defined value. As a smoke-poor layer is the distance between each to be applied floor a space up to the flue gas layer underside understood. The smoke-poor Layer serves to allow users of buildings to be safe to bring to rescue teams the rescue of humans, animals and allow property an effective fire fighting to enable and consequential damages by combustion gases and thermal decomposition products. The desired height the flue gas-poor layer is at least 2.50 m.

to Setting the flue gas-poor layer it is necessary to use the closure elements the outer wall openings a building, such as. Gates, doors, Windows, etc., which serve as near-bottom outflow openings (supply air opening) be designated to close or open up to a defined position, so that a correspondingly high smoke-poor layer can arise. this happens until today essentially manually, which in case of catastrophic events of great Disadvantage is, since the people in the respective building in the Usually panic, giving a controlled attitude the doors, Goals, etc. is unthinkable, so the smoke-poor layer can not be adjusted accordingly or planned.

The Object of the present invention is therefore to provide a method and to provide a device through which catastrophic in the case of entry Events a controlled adjustment of the opening position of the closure elements the outer walls of a building allows which is easy to implement, works well as well is economical to operate.

These The object is solved by the features of the independent claims, wherein expedient embodiments are described by the features of the subclaims.

Intended is first a method for controlling closure elements of wall openings in buildings in the case of catastrophic events, e.g. Building fires, including a movable gate element and a separate, preferably vertical movable smoke apron, wherein when switching an external contact in dependence from the detection of catastrophic event the gate element Completely open will and the smoke apron in a defined, the catastrophic event corresponding closure position is moved

With a procedure as specified the invention is made possible for example, in the case of a building fire, automatically, without manual intervention on the spot, together with the smoke extraction system to set a planned low-smoke layer, making a more effective Rescue operation possible becomes.

The Procedure as specified The present invention is preferably designed such that that the defnierte lock position the smoke apron by determining the switching state of at least one sensor is determined, but also provided other switches or stops could be. In particular, it may be provided that the smoke skirt purely mechanical, e.g. by spring force or by gravity without additional Drive units is brought into the defined position. A possibility this would be, the Rauschürze under tension in the fully opened To hold position, e.g. with the help of suitable locking devices, such as holding magnets, etc. and the holder to open depending on the circuit.

As well It is preferred that after switching the external contact all manual switching means for moving the closure element except Operation are set to prevent in the excitement, which usually accompanies a catastrophic fire event that necessary Setting the flue gas-poor layer by manual intervention on the closure elements of the outer walls such as doors, gates, or windows is impaired.

Also provided is a device for the defined closure of wall openings in buildings, in the case of catastrophic events, such as building fires, with an inside or outside of a motor to open or close gate for closing the wall opening attachable, in the case of catastrophic events automatically in a defined closure posi tion lowering smoke skirt is provided.

The device can also be characterized in that, to control the gate and the smoke skirt, a device is provided for detecting the switching state of external contacts as a function of the detection of the catastrophic event, the operation of a motor for opening the gate and a motor for descending the Smoke apron in a defined, the catastrophic event corresponding closure position ( 10 ) triggers.

Farther a sensor may be provided whose switching state is a measure of the defined closed position the smoke apron is. Likewise, however, a stop can be provided which the defined closure position the smoke apron certainly.

Finally, can the smoke apron a length have chosen so is that the smoke apron in complete lowered state holds the defined locking position.

Further Features and advantages will be apparent from the following description a preferred embodiment of the invention with reference to the accompanying drawings, wherein:

1 the schematic representation of an embodiment of an apparatus according to the present invention;

The 1 Figure 3 shows in a schematic way the representation of a preferred embodiment of the invention. To recognize is an outer wall opening 4 a (not shown) building, in which a roller door 1 is incorporated, of which in the 1 only the lower edge can be seen. The roller door 1 is opened or closed by means of a motor (not shown) in the respectively desired positions.

In order to be able to lower the smoke-poor layer in the design of smoke and heat exhaust systems, it is necessary in the event of fire, the opening 4 in which the roller shutter 1 is up to a defined value, e.g. B. 1.5 m to close. This is one of the roller door 1 separate and also with a separate engine 18 provided, vertically movable smoke apron 2 provided here on the outside of the roll-up door 1 is appropriate. If an external contact, here the fire alarm panel 8th switches, two separate processes are triggered. First, the roller shutter moves 1 up, into its fully open position. On the other hand, the smoke skirt drives 2 down in a the event, here a fire, corresponding position, which in the illustrated embodiment by a sensor 10 Once defined the smoke skirt 2 the limit switch or sensor 10 reached, a switching signal is generated and the engine 18 stops and the smoke apron 2 it stops. Instead of the limit switch or sensor 10 Of course, as well as a simple stop be provided, the downward movement of the smoke skirt 2 stops. Finally, it would also be possible to choose the length of the smoke skirt in such a way that it assumes the desired, defined closure position at maximum extension.

Again 1 it can be seen, is a control 14 provided with both the fire alarm panel 8th , as well as with the switch or sensor 10 as well as a motor control 16 is connected, the engine control 16 the drive 18 the smoke apron 2 , but also the (not shown) drive the roller door 1 controls. Finally, in the embodiment according to 1 another emergency power supply 20 provided in order to ensure the operation of the system in the event of a disaster.

During the fire, after the roller door 1 in its completely open position and the smoke skirt 2 has moved into the defined closure position and the (not shown) key switch has not been operated, a manual adjustment may not be possible. This can be achieved, for example, by the stop contact of the interface to the previous control being permanently activated.

The control 14 the embodiment according to 1 is installed in a safety-insulated housing made of impact-resistant plastic. The cable entry is made from below by means of screwed connections, so that a degree of protection of IP65 is achieved. The power supply is designed for 230V or 400V / AC.

The contact of the fire alarm panel 8th can be designed as normally closed or normally open. Likewise must be expected with a pulse-shaped or static triggering. The necessary configuration can be made via DIP switches.

As a limit switch 10 Different switches and sensors can be used. Preference is given to using industrial limit switches whose normally closed contact ensures wire-break safety and which normally fulfill protection class IP65.

Alternatively, capacitive or inductive proximity switches, or any other sensors with a switching output (floating or -behaftet) can be used. For this purpose, 24V unregulated DC voltage at the Terminal strip provided. A confguration is also provided here via DIP switches.

In the embodiment according to 1 the coupling to the existing door control takes place 16 via three potential-free contacts. These are sent to the normally existing interface (not shown) in the door control 16 connected and simulate an "up, 22 a "stop" - 24 as well as a "to" button 26 This interface is usually in every door drive 18 exists and serves to enable the customer a remote control via additional buttons, a cord switch, light barriers, building control and the like. The position control according to the invention "goggles" the gate control 16 thus a usual remote control before. The contacts can be adjusted by means of DIP switches. Of course, other couplings such as bus technology, radio o. Ä. Are conceivable.

On the circuit board of the controller are also various LEDs available a quick troubleshooting and allow easy diagnosis.

As already mentioned above, an externally accessible key switch is available, which sets the fire alarm input out of operation and an opening or closing of the roll-up door 1 allows again.

It is also envisaged that an LED is present on the circuit board indicating whether the external contact is switched and the controller 14 the roller door 1 fully opened and the smoke apron 2 in the Zuluftstellung, that had driven the defined closure position. This message must not be reset by the key switch. This is only possible z. B. by hidden contacts, a not publicly documented solder bridge or similar. which is shorted.

Also provided are monitoring functions. So must the smoke skirt after being triggered by the external contact 8th within a binary adjustable time of 1..255 sec. the switch 10 to reach. If this is not the case, there is a fault.

Claims (12)

Method for controlling closure elements of wall openings in buildings in the event of catastrophic events, such as building fires "comprising a vertically movable gate element ( 1 ) as well as a separate movable smoke apron ( 2 ), characterized in that when switching an external contact ( 8th ) in response to the detection of the catastrophic event, the gate element is fully opened and the smoke apron in a defined, the catastrophic event corresponding closure position ( 10 ) is moved. A method according to claim 1, characterized in that the defined closure position of the smoke skirt ( 2 ) by determining the switching state of at least one end position sensor ( 10 ) is determined. A method according to claim 1, characterized in that the defined closure position of the smoke skirt ( 2 ) is determined by reaching an end stop. Method according to one of the preceding claims, characterized in that after switching the external contact all manual switching devices for moving the gate element ( 1 ) and the smoke apron ( 2 ) to prevent the necessary adjustment of the flue gas-poor layer from being affected by manual intervention. Method according to one of the preceding claims, characterized in that the smoke apron ( 2 ) is moved purely mechanically by spring force and / or own weight in the corresponding locking position. Device for the defined closure of wall openings ( 4 ) in buildings, in the case of catastrophic events, such as building fires, characterized in that a inside or outside of a motor-to-open or closed gate element ( 1 ) for closing the wall opening ( 4 ) attachable, in the case of catastrophic events automatically lowered into a defined closure position smoke skirt ( 2 ) is provided. Vorrichtunng according to claim 6, characterized for controlling the gate element ( 1 ) and the smoke skirt ( 2 ) An institution ( 14 ) for detecting the switching state of external contacts ( 8th ) is provided in response to the detection of the catastrophic event involving the operation of an engine to open the gate and a device for lowering the smoke skirt ( 2 ) into a defined closure position corresponding to the catastrophic event ( 10 ) triggers. Apparatus according to claim 7, characterized in that the means for lowering the smoke skirt ( 2 ) consists of a to open the automatic closure of the smoke damper Festelleinrichtung that the smoke skirt ( 2 ) against the force of gravity, or a spring element keeps open. Apparatus according to claim 7, characterized in that the means for lowering the smoke skirt ( 2 ) an engine ( 18 ) is to the proof the smoke skirt ( 2 ) in the defined closure position. Apparatus according to claim 6, characterized in that a sensor ( 10 ) is provided, whose switching state is a measure of the defined closure position of the smoke skirt ( 2 ). Apparatus according to claim 6, characterized in that a stop is provided which the defined closure position of the smoke skirt ( 2 ) certainly. Device according to claim 6, characterized in that that the smoke apron has a length, the chosen is that the smoke apron in complete lowered state holds the defined locking position.