EP0022464B1 - Control system for the closing of a fire doors - Google Patents

Abstract

1. Control system for closing fire doors and a transport installation in the region of the passage for goods (7) being transported through a fire wall or floor, in which the movement of a sealing element (4) or the release mechanism of a locking arrangement (3) and the transport installation (6) is controlled by a reaction from a fire sensing element (2), characterized by the following features : (a) in the transport installation (6) is a safety zone, which comprises the control positions I-III or XI-XIII, (b) the control pistons I or XI are located so far in front of the fire door that on a smoke alarm and/or another disturbance the goods (7) being transported come to rest in good time in front of the sealing element (4), (c) between the control positions I or XI and the control positions II or XII which are behind the fire door is provided a passage securing arrangement which prevents release of the release mechanism of the sealing element (4) so long as the goods (7) being transported are in the stretch between the control positions I and II and/or XI and XII, (d) for moving out the transported goods (7) from the safety zone there is provided a no-break auxiliary energy source in case of loss of the main driving energy of the transport installation, (e) after the normal time runs out for passage of the goods (7) transported between the stretch I and II and/or XI or XII a time-delayed alarm is raised also when the transport installation is driven from the auxiliary energy source that goods (7) are blocking the opening (5), and (f) a programmed device is provided logically connecting all driving, supervision and control functions of all parts in the safety zone (Fig. 5 to Fig. 8).

Description

The invention relates to a control arrangement of the type described in the preamble of claim 1.

Due to the fire protection building regulations in building construction, the

Buildings are divided into fire sections separated by fire walls and ceilings, the quality of which is determined in a technical standard.

With these so-called fire compartment separations in the form of walls and / or ceilings or walls with a predetermined fire resistance period, it is necessary in many cases, mostly for operational reasons, e.g. to lead transport systems through openings, or to enable certain functional sequences in the course of the usage characteristics of the building To provide wall and / or ceiling openings. As a result, these fire compartment separations lose their intended function. However, in order to preserve the fire sections in the event of fire or catastrophe in the wall and / or ceiling openings provided for this purpose, and / or to prevent the smoking of adjacent fire sections in the event of a fire, it is necessary to attach so-called «fire protection closures» to the openings in the event of a fire, close the openings created in the fire compartment partition securely and immediately, with the "fire protection closures" in their fire resistance classification corresponding at least to the fire resistance class of the wall and / or ceiling on which they are used.

In the European patent applications No. 79100433.6 and No. 79101 086.1, detailed explanations regarding the technological background regarding the use of fire barriers on fire compartment partitions together with transport systems were given in technical terms.

In addition to the above explanations, it is important to know that with this type of fire protection closure, it is not only important that the opening in the fire compartment partition, which is closed and sealed with the fire protection closure, withstands the fire attack in the sense of the so-called construction and testing principles, but rather it is also important that the opening can be securely closed in the event of a fire. This secure closing of openings in fire section partitions in the event of fire or catastrophe is very strongly influenced by the transport system which is passed through the opening and not least by the moving goods which are constantly changing its position.

Of particular importance here is the risk that goods to be transported will move through the fire compartment partition when a fire breaks out, which causes the fire protection closure to automatically close the opening. If this occurs, there is a collision between the closing sealing element of the fire protection closure on the one hand and the transport goods that have just passed through the fire section separation on the other. The result would be a jamming of these two parts, which means that in the event of a fire, the passage of fire and smoke through the separation of the fire compartment is no longer an obstacle.

• 1.) FSA, bei denen das bewegbare Dichtelement in Ruhestellung ausserhalb der Öffnung in Bereitschaft steht und dort von dem Auslöseglied einer Feststellanlage fesgehalten wird. Nur im Brandfall wird dieses bewegbare Dichtelement unverzüglich mittels eines Schliesselementes auf einer festen Bewegungsbahn vor die zu verschliessende Öffnung bewegt. Das Zurückbewegen des Dichtelementes in die Ruhestellung ausserhalb der Öffnung erfolgt entweder per Hand oder mittels eines .Antriebes. Der Feuerschutzabschluss steht also planmässig offen.
• 2.) FSA, bei denen das bewegbare Dichtelement in Ruhestellung vor der zu verschliessenden Öffnung steht und somit die Öffnung planmässig abdichtet. Nur zum Zweck der Durchfahrt von Transportgut oder der Gewährleistung anderer Funktionen im Zuge der Nutzungscharakteristik des Gebäudes, wird dieses Dichtelement von der Position vor der zu verschliessenden Öffnung mittels eines Antriebes in eine ausserhalb der Öffnung vorgesehene Bereitschaftsstellung wegbewegt und dort von dem Auslöseglied der Feststellanlage festgehalten. Nach beendeter Durchfahrt des Transportgutes bzw. der Beendigungen der Aktivitäten wird das bewegbare Dichtelement mittels eines Antriebes unverzüglich wieder in die Ruhestellung vor der zu verschliessenden Öffnung gebracht. Der Feuerschutzabschluss ist planmässig geschlossen.

In operational practice, two functionally different basic types of “fire protection closures” are used in the following FSA:

• 1.) FSA, in which the movable sealing element is in standby outside the opening and is held there by the release member of a hold-open system. Only in the event of a fire, this movable sealing element is immediately moved on a fixed movement path in front of the opening to be closed by means of a closing element. The sealing element is moved back into the rest position outside the opening either by hand or by means of a drive. The fire protection closure is therefore open as planned.
• 2.) FSA, in which the movable sealing element is in the rest position in front of the opening to be closed and thus seals the opening as planned. This sealing element is moved from the position in front of the opening to be closed by means of a drive to a standby position provided outside the opening and held there by the triggering element of the hold-open system only for the purpose of transporting goods to be transported or to guarantee other functions in the course of the usage characteristics of the building. After the passage of the goods to be transported or the activities have ended, the movable sealing element is immediately brought back into the rest position in front of the opening to be closed by means of a drive. The fire protection closure is closed on schedule.

According to the “Construction and test principles for fire protection closures for rail-bound conveyor systems”, it is sufficient if fire protection closures of basic type No. 1 are used. However, practice shows that the majority of the fire protection barriers used are of basic type no. 2, which essentially corresponds to the local conditions and requirements and is mainly necessary for operational reasons.

• - Beeinträchtigung der Klimazonen
• - Zugerscheinungen, Geruchsbelästigung und Lärmbelästigung
• - Massnahmen zur Energieeinsparung
• - Zusätzliche brandschutztechnische Forderungen der örtlichen Behörden, Bauaufsichtsbehörden oder Sachversicherer.

Common reasons include:

• - Impairment of the climate zones
• - Drafts, unpleasant smells and noise
• - Energy saving measures
• - Additional fire protection requirements of the local authorities, building authorities or property insurers.

Circuits for controlling transport systems, smoke alarm systems and transport systems are known. However, these are only circuits which individually control either the driving control of the transport systems, the movements of the fire protection shutters or the triggering mechanism of the hold-open system.

Circuits or controls for transport systems, in which the three aforementioned individual circuits are contained in a given functional logic, have not previously been known.

DE-B-2 325 939 is known, in which a technical solution is described which deals with the problem of delayed closing in fire protection doors for the purpose of escaping panic from a burning room.

The technical suggestions made in it already point to certain possible solutions, but generally assume that a permanently programmed pulse generator is used as a program system that cannot be influenced by what is happening in the closing area of the door and thus the fire protection door in a stereotyped pulse process closes-opens-closes during a fire.

This program system known from DE-B-2 325 939 is, however, unsuitable for controlling fire protection closures which are used in connection with the transport system technology, because here the goods which are constantly changing their position must determine the program sequence.

• Im Brandfall muss die Öffnung in einer Brandabschnitttrennung durch den Feuerschutzabschluss mit Sicherheit verschlossen sein.

The invention is therefore based on the object of making a functional logic for maintaining important driving and control functions and a circuit arrangement for carrying them out for fire protection closure and transport system in the area of passage of transport goods by means of a fire compartment separation, with which fire protection closures, smoke alarm systems and transport systems are operated simultaneously can be met so that the regulations for standardized constructions in fire compartment partitions can be met. The key point of this task is to design all driving and control functions of the fire protection barriers of the two basic types No. 1 and No. 2, the hold-open or smoke alarm system and the transport system in the immediate area in front of and behind the fire compartment partition (fire wall) so that they are independent of the type of a possible event and from the time of its occurrence the following condition is reached in the shortest possible way:

• In the event of a fire, the opening in a fire compartment partition must be closed with security by the fire protection closure.

• - Die Funktion der Feststellanlage (Rauchmeldeanlage) darf gegenüber der bauaufsichtlich zugelassenen Ausführung nicht beeinträchtigt oder verändert werden, auch dann nicht, wenn eine Einrichtung geschaffen wird, die verhindern soll, dass sich das bewegbare Dichtelement des Feuerschutzabschlusses und das durch die Brandabschnitttrennung hindurchgeführte Transportgut verklemmen.
• - Der Schliessvorgang der Feuerschutzabschlüsse darf nur im Zusammenhang mit der Transportanlage und deren einbezogener, möglicher Betriebszustände erfolgen.
• - Die Verwendung von Feuerschutzabschlüssen der Grundtype Nr. 2 muss ausserdem mit der Betriebscharakteristik der Transportanlage im Normalbetrieb und im Brandfall abgestimmt.werden.
• - Die Behinderung des Schliessvorganges der Feuerschutzabschlüsse durch Transportgut ist auszuschliessen.

It is also the object of the invention to provide a functional logic that can be used for any type of transport system and fire protection closure, in which measures are guaranteed which essentially have to take the following requirements into account:

• - The function of the hold-open system (smoke alarm system) must not be impaired or changed compared to the version approved by the building authorities, even if a device is created that is to prevent the movable sealing element of the fire protection barrier and the goods being transported through the fire compartment separation from jamming.
• - The fire protection closings may only be closed in connection with the transport system and its possible operating states.
• - The use of fire protection barriers of basic type No. 2 must also be coordinated with the operating characteristics of the transport system in normal operation and in the event of a fire.
• - The hindrance to the closing process of the fire protection closures by transport goods must be excluded.

Another object of the invention is to provide functional logic that is suitable for constructing a switching arrangement with which it is possible to use fire protection closures in combination with any type of transport system. Special attention is paid to the difficulty that the importance of the operating technology of transport systems must be subordinated to «fire protection», which makes it necessary to control all the driving and control functions of the fire protection barriers and the transport system in the area of the fire compartment separation in terms of the control options Combine and check the switching arrangement of the fire protection closures. The particular difficulty now lies in the fact that, owing to the large number of different transport system systems, this can be carried out with little technical effort.

As can be seen from the above description of the task, the solution to the task can only be achieved in that all the processes and events occurring around the fire section separation are linked in a functional logic and a circuit arrangement is established therefrom. Since there was practically no experience in this area, extensive research and development work was initially required, which had to be supplemented by complicated and lengthy tests and investigations at official material testing institutes. The technical solution to the problem described below is the result of this development work, which has now been brought to a certain conclusion, the quality of the functional logic and the circuit arrangement being essentially determined by the fact that all occurring events and processes of

• - hold-open or smoke detection system,
• - Operation of fire barriers and
• - Operation of the conveyor system are captured by a functional logic as presented here for patent application.

The object is achieved by the features described in the characterizing part of claim 1.

• - FSA planmässig geöffnet, Transportbetrieb in einer Richtung (Fig. 1)
• - FSA planmässig geschlossen, Transportbetrieb in einer Richtung (Fig. 2)
• - FSA planmässig geöffnet, Transportbetrieb in zwei Richtungen (Fig.3)
• - FSA planmässig geschlossen, Transportbetrieb in zwei Richtungen (Fig. 4) jeweils die logischen Funktionsabläufe dargestellt in Flussdiagrammen,
• - FSA planmässig geöffnet, Transportbetrieb in einer Richtung (Fig. 5)
• - FSA planmässig geschlossen, Transportbetrieb in einer Richtung (Fig. 6)
• - FSA planmässig geöffnet, Transportbetrieb in zwei Richtungen (Fig. 7)
• - FSA planmässig geschlossen, Transportbetrieb in zwei Richtungen (Fig. 8) beginnend und endend jeweils mit der Grundstellung bei der Durchfahrt von Transportgut durch eine Brandabschnitttrennung verwendet werden.

In order to ensure safe closing even taking into account all possible interference influences, the object is additionally achieved in a development of the invention in that for the four possible applications

• - FSA opened according to plan, transport operation in one direction (Fig. 1)
• - FSA closed according to plan, transport operation in one direction (Fig. 2)
• - FSA opened according to plan, transport operation in two directions (Fig. 3)
• - FSA closed according to plan, transport operation in two directions (FIG. 4), the logical functional sequences each represented in flow diagrams,
• - FSA opened according to plan, transport operation in one direction (Fig. 5)
• - FSA closed according to plan, transport operation in one direction (Fig. 6)
• - FSA opened according to plan, transport operation in two directions (Fig. 7)
• - FSA closed according to plan, transport operations in two directions (Fig. 8) starting and ending with the basic position when transporting goods through a fire partition are used.

In a further embodiment, and in particular for the purpose of fulfilling inevitable requirements under building law, it is shown that the function is constructed in such a way that the hold-open system intervenes in the functional processes in an independent, higher-level mode of operation.

• - FSA planmässig geöffnet, Transportbetrieb in eine Richtung (Fig. 1)
• - FSA planmässig geschlossen, Transportbetrieb in eine Richtung (Fig. 2)
• - FSA planmässig geöffnet, Transportbetrieb in zwei Richtungen (Fig. 3)
• - FSA planmässig geschlossen, Transportbetrieb in zwei Richtungen (Fig. 4)
  ein Programmträger, programmiert mit den logischen Funktionsabläufen, dargestellt in Flussdiagrammen
• - FSA planmässig geöffnet, Transportbetrieb in eine Richtung (Fig. 5)
• - FSA planmässig geschlossen, Transportbetrieb in eine Richtung (Fig. 6)
• - FSA planmässig geöffnet, Transportbetrieb in zwei Richtungen (Fig. 7)
• - FSA planmässig geschlossen, Transportbetrieb in zwei Richtungen (Fig. 8) als logische Verknüpfung aller Fahr-; Kontroll-und Steuerfunktionen von Feststellanlage, Feuerschutzabschluss mit Dichtelement und Transportanlage im Sicherheitsbereich in übergeordneter Arbeitsweise verwendet wird.

To carry out the functional logic, a circuit arrangement is shown in a supplementary development of the invention in such a way that for the four possible applications

• - FSA opened according to plan, transport operation in one direction (Fig. 1)
• - FSA closed according to plan, transport operation in one direction (Fig. 2)
• - FSA opened according to plan, transport operation in two directions (Fig. 3)
• - FSA closed according to plan, transport operation in two directions (Fig. 4)
  a program carrier, programmed with the logical functional sequences, shown in flow diagrams
• - FSA opened according to plan, transport operation in one direction (Fig. 5)
• - FSA closed according to plan, transport operation in one direction (Fig. 6)
• - FSA opened according to plan, transport operation in two directions (Fig. 7)
• - FSA closed according to plan, transport operation in two directions (Fig. 8) as a logical connection of all driving; Control and control functions of the hold-open system, fire protection closure with sealing element and transport system in the security area are used in a higher-level mode of operation.

The advantages achieved by the invention consist, in particular, in that instead of a large number of circuits from the individual specialist trades and areas, a logical specification has been created which makes it possible to combine all the necessary and necessary operational and functional guarantees of the individual specialist areas in one control or circuit arrangement .

Another important advantage of the invention is that the imponderable risks from the creation of a large number of circuits from the individual specialist trades and areas are largely eliminated because of the many interfaces.

The invention can be used in an advantageous manner for the switching and control of hold-open systems and fire protection closures in combination with any type of transport system.

• Dabei zeigt:
• Fig. 1, 2, 3 und 4 ein Ausführungsbeispiel mit den vier möglichen Anwendungsfällen in der Kombination von Feuerschutzabschlüssen beider Grundtypen mit der jeweiligen Transportrichtung.
• Fig. 5, 6, 7 und 8 ein Ausführungsbeispiel in Form von Flussdiagrammen mit den vier möglichen Anwendungsfällen in der Kombination von Feuerschutzabschlüssen beider Grundtypen mit der jeweiligen Transportrichtung.
• Fig. 9 eine Schaltungsanordnung mit dem Programmträger einschliesslich der Hilfsglieder.

The invention is described below with the specification of further, more precisely defined features and advantages as an exemplary embodiment according to the drawings:

• It shows:
• 1, 2, 3 and 4 an embodiment with the four possible applications in the combination of fire protection closures of both basic types with the respective transport direction.
• 5, 6, 7 and 8 an embodiment in the form of flow diagrams with the four possible applications in the combination of fire protection closures of both basic types with the respective transport direction.
• Fig. 9 shows a circuit arrangement with the program carrier including the auxiliary elements.

Naming the details

Benennung der Einzelheiten in den Flussdiagrammen nach Fig. Nr. 5, 6, 7 und 8, die Zahlen sind in Kreisen eingerahmt

Benennung der Einzelteile nach Fig. Nr. 9

Name of the details in the flow diagrams according to Fig. Nos. 5, 6, 7 and 8, the numbers are framed in circles

Name of the individual parts according to Fig. 9

As shown in FIGS. 1-9, the invention consists of 9 graphic representations, including the respective description.

Graphical representations:

• Fig. 1-function diagram for flow chart in Fig. 5
• Fig. No.2-function diagram for flow chart in Fig. 6
• Fig. 3-Function diagram for flow chart in Fig. 7
• Fig. 4-functional diagram for flow chart in Fig. 8
• 5 flowchart of the functional image in FIG. 1
• 6 flowchart for function diagram in FIG. 2
• Fig. 7 flowchart for function diagram in Fig. 3
• Fig. 8 flowchart for function image in Fig. 4

Description of the functional images according to FIGS. 1 to 4

The functional diagrams shown in Fig. 1 to 4 show the four possible applications in the combination of fire protection closure of both basic types 1 and 2 with the respective transport direction.

Fig. No. 1

• Der Feuerschutzabschluss ist planmässig geöffnet, das bewegbare Dichtelement (4) steht neben der zu verschliessenden Öffnung in Bereitschaftsstellung und wird vom Auslöseglied (3) der eingeschalteten Feststellanlage (1-3) in dieser Stellung festgehalten.

Functional diagram for flow chart in Fig. No. 5 when using fire barriers of basic type No. 1, transport operation in a direction from I to II. Basic position:

• The fire protection closure is open as planned, the movable sealing element (4) is in the standby position next to the opening to be closed and is held in this position by the release element (3) of the activated hold-open system (1-3).

Transport operation is possible. When the cargo (7) reaches the area of the control point I, the functional sequences start according to the flow diagram in FIG. 5.

Fig. 2

• Der Feuerschutzabschluss ist planmässig geschlossen, das bewegbare Dichtelement (4) steht vor der zu verschliessenden Öffnung und wird vom Auslöseglied (3) der eingeschalteten Feststellanlage (1-3) mit dem Antrieb (9) verbunden. Transportbetrieb ist möglich. Erreicht das Transportgut (7) den Bereich der Kontrollstelle 1, beginnen die Funktionsabläufe nach Flussdiagramm in Fig. Nr. 6.

Functional diagram for flow chart in Fig. No. 6 when using fire barriers of basic type No. 2, transport operation in a direction from I to II. Basic position:

• The fire protection closure is closed as planned, the movable sealing element (4) stands in front of the opening to be closed and is connected to the drive (9) by the release element (3) of the activated hold-open system (1-3). Transport operation is possible. When the transported goods (7) reach the area of the control point 1, the functional sequences start according to the flow diagram in FIG. 6.

Fig. 3

• Der Feuerschutzabschluss ist planmässig geöffnet, das bewegbare Dichtelement (4) steht neben der zu verschliessenden Öffnung in Bereitschaftsstellung und wird vom Auslöseglied (3) der eingeschalteten Feststellanlage (1-3) in dieser Stellung festgehalten.

Functional diagram for flow chart in Fig. No. 7 when using fire barriers of basic type No. 1, transport operation in two directions, from 1 to II and / or from XI to XII. Initial position:

• The fire protection closure is open as planned, the movable sealing element (4) stands next to the opening to be closed in the standby position and is held in this position by the release element (3) of the activated hold-open system (1-3).

Transport operation is possible. When the transported goods (7) reach the area of the control point I or XI, the functional sequences begin according to the flow diagram in FIG. 7.

Fig. 4

• Der Feuerschutzabschluss ist planmässig geschlossen. Das bewegbare Dichtelement (4) steht vor der zu verschliessenden Öffnung und wird vom Auslöseglied (3) der eingeschalteten Feststellanlage (1-3) mit dem Antrieb (9) verbunden. Transportbetrieb ist möglich. Erreicht das Transportgut (7) den Bereich der Kontrollstelle I oder XI, beginnen die Funktionsabläufe nach Flussdiagramm in Fig. Nr. 8.

Functional diagram for flow chart in Fig. No. 8 when using fire barriers of basic type No. 2, transport operation in two directions from to II and / or from XI to XII. Initial position:

• The fire protection closure is closed on schedule. The movable sealing element (4) stands in front of the opening to be closed and is connected to the drive (9) by the release element (3) of the activated hold-open system (1-3). Transport operation is possible. When the transported goods (7) reach the area of the control point I or XI, the functional sequences start according to the flow diagram in FIG. 8.

Description of the graphic representations according to FIGS. 5 to 8

• - In der linken Spalte ist die Durchfahrt des Transportgutes und die Arbeitsweise von Feuerschutzabschluss und Transportanlage unter Normalbetrieb - kein Brandfall - dargestellt.
• - In der mittleren Spalte ist die Zuordnung der Feststellanlage in unabhängiger, übergeordneter Arbeitsweise dargestellt.
• - In der rechten Spalte ist die Arbeitsweise von Feuerschutzabschluss und Transportanlage im Brandfall bei Rauchmeldung, unter Berücksichtigung der sich ständig verändernden Position des fahrenden Transportgutes, dargestellt.

The flowcharts for function diagrams 1-4 show the four possible applications in the combination of fire protection closures of both basic types with the respective transport direction. The example of the passage of goods through the fire compartment separation shows the connection between the driving and control functions of the hold-open system and the fire protection barrier with the transport system. The logic of the processes is geared to how, when the hold-open system responds, taking into account the constantly changing position of the moving goods, the opening is securely closed. For this purpose, the flowcharts are constructed in three columns.

• - The passage through the goods to be transported and the mode of operation of the fire protection closure and the transport system under normal operation - no fire - are shown in the left column.
• - In the middle column, the assignment of the hold-open system is shown in an independent, higher-level mode of operation.
• - The right column shows the working principle of the fire protection closure and the transport system in the event of a fire in the event of a smoke alarm, taking into account the constantly changing position of the goods being transported.

The steps carried out are shown in interconnected symbols. The following symbols were used:

The symbols are labeled and thus explained and assigned.

Symbols that are not adequately explained have a number and are explained in the individual descriptions below.
Nos. 5, 6, 7 and 8 only

1.) Basic position, passage protection off

Fire protection closure and transport system are ready for operation. 5 and 7, FSA basic type No. 1, the sealing element is on standby next to the opening.

6 and 8, FSA basic type No. 2, the sealing element is in front of the opening. Control e.g. through limit switches. The hold-open system is in operation, there is a constant query for smoke.

There is no transport goods in the safety route between I and 11 and / or between Xl and XII. Transport operation is possible.

2.) Fire protection closure (FS) closes mechanically

The fire closure must have a device (closing device) which, after the release element of the hold-open system has released the sealing element, moves it without any outside help with certainty, even from any intermediate position, in front of the opening.

3.) Shut down fire protection closure (FSA)

If the sealing element is not in the standby position next to the opening, transportation must not be possible. The end position must be checked.

4.) Transport goods reach control I

The control point is to be designed in such a way that moving goods are detected with certainty, furthermore it is to be designed so that the opening can be closed immediately in the event of a smoke alarm and / or when the transport system is switched off, the goods to be transported come to a standstill in front of the sealing element's movement path (overrun of Transport system).

5.) Fault report fire protection closure

Continuation of transport goods into the safety route beyond Control I must be prevented. Transport operations may only be possible once the fault has been eliminated.

This fault message only affects the operation of the transport system, fire protection is still guaranteed.

6.) Pass-through protection

The passage protection is applied between control I and II. This must prevent the triggering element of the hold-open system from letting go of the sealing element in the event of a smoke alarm, as long as the transported goods are in the route between 1-11 and / or XI-XII. The technical provisions of the hold-open system in the approval may not be affected.

7.) U.S.V. switch on (only if available)

• - Versorgung der Transportanlage mit Fahrstrom auf Fahrstrecke zwischen I und III und/oder XI und XIII.
• - Versorgung der Durchfahrtsicherung, unterbrechungsfrei.
• - Versorgung der FSA mit Steuerstrom.

In the event of a failure of the power supply of the transport system and the fire protection closure, an uninterruptible power supply (emergency power) takes over all the tasks that are still necessary

• - Supply of the transport system with traction current on the route between I and III and / or XI and XIII.
• - Supply of the passage protection, uninterrupted.
• - Supply of the FSA with control current.

The U.S.V. can be designed as a central or decentralized energy store.

The supply lines from the energy store to the place of use and the energy store itself must be protected so that they can withstand the fire for approx. 5 minutes in the event of a fire and fulfill the intended function.

8.) Alarm message

The alarm system should be activated with a time delay. The dimensioning of the time unit depends on the transport speed.

Guide value for the design: normal transit time + 60 sec.

Once this time has elapsed, the transport goods, even in the event of a fire, hinder the opening from being closed. In contrast to fault message 5.), fire protection is no longer guaranteed here. A fault that led to the alarm message must be remedied immediately.

Description of Fig. No. 9

No. 9 shows the circuit arrangement with the program carrier (101) used in one exemplary embodiment. The program carrier (101) is supplemented by the units closing time delay (102) and closing force limit (103). The closing force limit is determined by limiting the current consumption of the drive (9) and is primarily intended to reduce the risk of injury to people.

Claims (6)

1. Control system for closing fire doors and :a transport installation in the region of the passage for goods (7) being transported through a fire wall or floor, in which the movement of a sealing element (4) or the release mechanism of a locking arrangement (3) and the transport installation (6) is controlled by a reaction from a fire sensing element (2), characterised by the following features:

(a) in the transport installation (6) is a safety zone, which comprises the control positions I-III or XI-XIII,

(b) the control pistons I or XI are located so far in front of the fire door that on a smoke alarm and/or another disturbance the goods (7) being transported come to rest in good time in front of the sealing element (4),

(c) between the control positions I or XI and the control positions II or XII which are behind the fire door is provided a passage securing arrangement which prevents release of the release mechanism of the sealing element (4) so long as the goods (7) being transported are in the stretch between the control positions I and II and/or XI and XII,

(d) for moving out the transported goods (7) from the safety zone there is provided a no-break auxiliary energy source in case of loss of the main driving energy of the transport installation,

(e) after the normal time runs out for passage of the goods (7) transported between the stretch I and II and/or XI to XII a time-delayed alarm is raised also when the transport installation is driven from the auxiliary energy source that goods (7) are blocking the opening (5), and

(f) a programmed device is provided logically connecting all driving, supervision and control functions of all parts in the safety zone (Fig. 5 to Fig. 8).

2. System according to claim 1, characterised by the four possible conditions of the fire door:

- fire door open according to plan, transport drive in one direction (Fig. 1)

- fire door closed according to plan, transport drive in one direction (Fig. 2)

- fire door open according to plan, transport drive in two directions (Fig. 3)

-fire door closed according to plan, transport drive in two directions (Fig. 4).

3. System according to claim 1 or claim 2, characterised-in that the functional arrangement is so arranged that the locking arrangement (2), (3) intervenes in an independent, overriding manner in the functional sequence.

4. System according to claims 1 to 3, characterised in that a program carrier (101) is used programmed with the logical function sequence for logically connecting all driving, supervision and-control functions of the locking arrangement (2), (3) fire door with sealing element (4) and transport installation (6) in the safety zone (I)-(III) and/ or XI-XIII in overriding manner.

5. System according to claim 4, characterised in that the program carrier (10) is formed as a microprocessor.

6. System according to claim 4 or 5, characterised in that the program carrier is supplemented by the units

-closure time delay (102) of the sealing element (4) and

- closure force limiter (103) of 0-10 Kp for the sealing element (4) by limiting the current consumption of the drive (9).

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