EP1110583B1 - Fire extinguishing system - Google Patents

Fire extinguishing system Download PDF

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Publication number
EP1110583B1
EP1110583B1 EP00126899A EP00126899A EP1110583B1 EP 1110583 B1 EP1110583 B1 EP 1110583B1 EP 00126899 A EP00126899 A EP 00126899A EP 00126899 A EP00126899 A EP 00126899A EP 1110583 B1 EP1110583 B1 EP 1110583B1
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EP
European Patent Office
Prior art keywords
line
valve
fire extinguishing
exciter
extinguishing system
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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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EP00126899A
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German (de)
French (fr)
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EP1110583A1 (en
Inventor
Wolfgang Melchior
Volker Kluge
Manfred Brill
Richard Kleinert
Ulf Dr.-Ing. Schremmer
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Total Walther GmbH Feuerschutz und Sicherheit
Total Feuerschutz GmbH
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Total Walther GmbH Feuerschutz und Sicherheit
Total Feuerschutz GmbH
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Publication of EP1110583A1 publication Critical patent/EP1110583A1/en
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    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C35/00Permanently-installed equipment
    • A62C35/58Pipe-line systems
    • A62C35/62Pipe-line systems dry, i.e. empty of extinguishing material when not in use
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C37/00Control of fire-fighting equipment
    • A62C37/36Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
    • A62C37/44Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device only the sensor being in the danger zone

Definitions

  • the invention relates to a fire extinguishing system with a controlled via stimulator single-chamber valve in an extinguishing line with open nozzles, the exciters are arranged in a stimulator line and the open nozzles with their nozzle pipe network in frost-prone areas, and that provided with an air supply control line to a control piston of the single-chamber valve acts, which is connected via a gate valve to a fire water supply line.
  • Such systems are installed in frost-prone areas, for example, outside a hall or in unheated halls, or even in outdoor facilities.
  • the open extinguishing nozzles and the exciters are mounted in the frost zone.
  • DE 196 01 777 A1 describes a fire-extinguishing system with a pressurized gas-filled sprinkler drying tube network, which is connected to an extinguishing water line.
  • the sprinkler drying pipe network forms an excitation line, which is monitored by a differential pressure switch.
  • the extinguishing water valve which displaces the air from the exciter system in the event of triggering, is put into operation electrically or pneumatically-hydraulically.
  • the sprinklers also form the exciters and the nozzles for spraying the extinguishing water.
  • an open extinguishing system is described with connected to a sprinkler line, open extinguishing nozzles. To stimulate another sprinkler pipe network is connected with closed quick-opening sprinklers. For frost-prone areas these extinguishing systems are not provided.
  • DE 297 15 451 likewise describes a sprinkler system with a compressed air-filled sprinkler pipe network.
  • the sprinkler pipe network is connected to an automatic flushing device, through which a certain amount of air is released from the sprinkler pipe network into the open on a regular basis.
  • the supplied dry air should transport moisture out of the pipe system and avoid corrosion in the pipe system. This drying system is also suitable for frost-prone areas.
  • the invention has for its object to provide a fire extinguishing system with open extinguishing nozzles, in which the lying in the frost areas stimulator and extinguishing nozzles are protected against Eispfropfen Struktur with constipation or damage, and with the same time the triggering process for the extinguishing agent is accelerated in case of fire.
  • This object is achieved in that the extinguishing valve is held by the pressure of a pneumatic control system in the closed state, that the stimulator-containing stimulator line is part of a pressurized cryoprotectant containing hydraulic control system, and that the pneumatic control system connected by at least one check valve to the hydraulic control system is.
  • a particular embodiment of the invention is seen in that the exciter line of the hydraulic control system is associated with a container via a supply line, which is filled with compressed air and cryoprotectant and provided with a shut-off valve and a check valve supply line has a bypass in the region in the supply line one or two water stop valves are provided, and that in the exciter line behind the junction with the supply line one or two check valves are installed, that the exciter line is connected upstream of the check valve at a connection point with the compressed air supply line, and that of the with a Throttle check valve provided compressed air supply line bypass is guided to a quick exhaust.
  • the required operating measures can be optimally performed.
  • the commissioning with the filling process and the establishment of the operating condition, as well as the triggering process in case of fire with the simplest means can perform.
  • the pressure differences caused by temperature fluctuations in the stimulator tube network are compensated by the air cushion in the pressure-air / antifreeze container. This compensation, via an equal-equal bore in the check valve; which is installed in the supply line for the antifreeze.
  • a container 1 is filled with compressed air and antifreeze.
  • the antifreeze is filled by means of a filling line 5 and a filler neck 3 and the compressed air by means of a filling line 6 and a filler neck 4 in the container 1.
  • the filling lines 5 and 6 are each provided with a shut-off valve 7 or 10, a check valve 8,11 and a safety valve 9,12.
  • a level indicator 2 the filling is controlled. From the container 1, a supply line 13 for the antifreeze is led to a junction 19.
  • the container 1 In the supply line 13, the container 1, a shut-off valve 14, a further shut-off valve 15, and a non-return valve 16 associated with a compensation bore. Between the non-return valve 16 and the connection point 19, a bypass 17 provided with a shut-off valve 17 is provided, wherein two water-stop valves 18 are installed in the supply line 13 between the connection points 13a and 13b. The second water stop valve is installed for safety if one of the valves becomes defective. As a result, the system also remains functional with a valve.
  • the supply line 13 is connected to an excitation line 20, which merges into an exciter line 20a with the exciters 21, eg sprinklers or similar closed nozzles.
  • a vent test valve 22 is provided at the end of the stimulator line 20a.
  • the frost limit is shown. Accordingly, there are parts of the exciter 20, as well as the stimulator line 20a with the exciters 21 in the frost-prone area.
  • a test line 24 with a pressure gauge valve 25 and a throttle intermediate piece 25 a to a pressure gauge 26 from.
  • Another test line 28 is led to a pressure decrease signaling switch 27. Die.Anreger Koch 20 is connected via a shut-off valve 29 with a check valve 30. Again, a second check valve 31 is provided for safety reasons.
  • the filling limit of the cryoprotectant is designated.
  • the system parts shown above the filling limit 61 relate to the hydraulic control system 60.
  • the actual erase unit is described below, which i.a. consists of the single-chamber valve 50 with the control piston 51, the clamping bridge 52 as a closure member and the toggle 53. Furthermore, the one-chamber valve 50 is connected, on the one hand, to a gate valve 54 and a dissolving water line 55 and, on the other hand, to an extinguishing line 56 and a nozzle tube net 57 with open nozzles 58. Parts of the extinguishing line 56, and the nozzle tube network 57 with the nozzles 58 are also outside the. Frost limit 64 mounted. In the operating state of the fire extinguishing system, the gate valve 54 is opened and the one-chamber valve 50 is closed by means of the clamping bridge 52, wherein the toggle lever 53 locks the clamping bridge.
  • a compressed air supply line 32 is connected to a compressed air source 32 a with a compressor and guided to the control piston 51 of the single-chamber valve 50.
  • a check valve 33 and a throttle check valve 34 is installed with a 0.30 mm throttle opening.
  • the extended exciter line 20 b which is on the other hand connected to the check valve 31.
  • 65 indicates the filling limit for the compressed air.
  • a control line 32b goes off, which branches off on the one hand in a measuring line 37 with a pressure gauge valve 38 and a pressure gauge 39 and on the other hand in an excitation line 36 with a manual exciter valve 40.
  • a bypass line 42 which is provided with two shut-off valves 43 and 44, is connected at a connection point 41, which is led to a rapid exhaust fan 45 with a manometer 66.
  • a diaphragm 46 and a throttle opening 47 is installed, which divides the quick exhaust 45 into an upper diaphragm space 62 and a lower vent space 63.
  • the bypass line 42 is connected to the venting chamber 63.
  • a shut-off valve 48 is provided with an adjusting lever 49, which acts on the shut-off valve 48 by means of the membrane 46 and keeps it closed in the operating state.
  • the fire extinguishing system according to the invention is set up such that both the startup and the tripping operation can be performed.
  • the commissioning of the fire extinguishing system begins with a filling process and a measure to establish the operating state.
  • the shut-off valves 14, 15 and 17a are opened.
  • the shut-off valves 22 and 29 are closed.
  • the supply line 13 with the bypass 17 and the exciter lines 20 and 20a are filled up to the shut-off valves 22 and 29 with the antifreeze to 6 bar operating pressure, which is displayed on the manometer 26.
  • the exciter lines 20 and 20a are vented via the vent valve 22 and at the same time performed a functional test of the pressure-decrease signaling switch 27.
  • the filling process is completed up to the filling limit 61.
  • the check valve 30 restrains the hydraulic control means.
  • the shut-off valve 33 is opened and the compressor of the compressed gas source 32 a is turned on.
  • the hydraulic control system 59 fills with an operating pressure of 4.5 bar.
  • the single-chamber valve 50 is locked and kept closed by means of the control piston 51 when the gate valve 54 is closed.
  • the supply line 32 is filled with the throttle check valve 34 with compressed air.
  • the lines 20b, 37 and 36 are filled with compressed air.
  • the fire extinguishing system is set up after closing the shut-off valve 43 and ready by opening the gate valve 54 for the application.
  • a stimulator 21 When a stimulator 21 is triggered in case of fire, e.g. when opening a sprinkler, the compressed air antifreeze flows over the open exciter 21.
  • the installed in the supply line 13 water stop valves 18 are automatically activated by pressure drop (closed) and prevent further inflow of cryoprotectant in the Anregerrohrnetz 20 and 20a.
  • the cryoprotectant also flows out of the test line 24, so that the pressure-loss signaling switch 27 effects a pressure drop to a reporting point, e.g. a fire station or the fire department.
  • the pressure reduction in the hydraulic control system 60 causes a pressure reduction in the pneumatic control system 59, because the check valves 30 and 31, compressed air flows into the excitation line 20.
  • This pressure reduction activated at an operating pressure of 4.2 bar the quick exhaust 45.
  • the throttle opening 47 the compressed air flows from the venting chamber 63 faster As a result, the membrane 46 pushes the lever 49 down and opens the butterfly valve 48.
  • the entire compressed air of the pneumatic control system 59 flows completely through the drain line 67 from.
  • the control piston 51 is relieved via the line 32, whereby the toggle lever 53, the locking of the clamping bridge 52 cancels and thus the single-chamber valve 50 is opened by the pressure of the extinguishing water.
  • open gate valve 54 the extinguishing agent flows into the nozzle pipe 57 and thus into the open extinguishing nozzles 58. With these measures, a rapid release of the single-chamber valve 50 is achieved.
  • a manual stimulator valve 40 is provided at the end of the stimulator line 36. If the valve 40 is opened by hand, the compressed air flows from the lines 32, 32b and 36 quickly, so that relieved in a few seconds, the control piston 51 and thus the one-chamber valve 50 is opened.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Fire Alarms (AREA)
  • Cereal-Derived Products (AREA)

Abstract

A fire extinguishing plant has activators (21) to trigger a discharge valve (50) in a discharge pipe (56) with open discharge nozzles (58) that are fitted in areas at risk of frost. The discharge valve is activated by a combined pneumatic-hydraulic system (59,60).

Description

Die Erfindung betrifft eine Feuerlöschanlage mit einem über Anreger angesteuerten Einkammerventil in einer Löschleitung mit offenen Düsen, wobei die Anreger in einer Anregerleitung und die offenen Düsen mit ihrem Düsenrohrnetz in frostgefährdeten Bereichen angeordnet sind, und dass die mit einer Luftversorgung versehene Steuerleitung auf einen Steuerkolben des Einkammerventils einwirkt, das über einen Absperrschieber an eine Löschwasser-Versorgungsleitung angeschlossen ist.The invention relates to a fire extinguishing system with a controlled via stimulator single-chamber valve in an extinguishing line with open nozzles, the exciters are arranged in a stimulator line and the open nozzles with their nozzle pipe network in frost-prone areas, and that provided with an air supply control line to a control piston of the single-chamber valve acts, which is connected via a gate valve to a fire water supply line.

Derartige Anlagen werden in frostgefährdeten Bereichen, beispielsweise außerhalb einer Halle oder in nicht beheizbaren Hallen, oder auch in Freiluftanlagen installiert. Dabei sind insbesondere die offenen Löschdüsen und die Anreger im Frostbereich montiert.Such systems are installed in frost-prone areas, for example, outside a hall or in unheated halls, or even in outdoor facilities. In particular, the open extinguishing nozzles and the exciters are mounted in the frost zone.

Zur Vermeidung von Frostschäden hat man in bekannten Anlagen das Anregersystem mit Druckluft gefüllt. Bei einer unsachgemäßen Luftversorgung bildet sich in dem Anregersystem Kondenswasser, das im Frostbereich zu Eispfropfen gefriert und damit die Anregerleitung und die Anreger verstopft oder sogar beschädigt. Bei einer Beschädigung erfolgt eine Fehlauslösung der Anlage, wodurch das Löschwasser in Gang gesetzt wird und über die offenen Löschdüsen ausfließt. Wird wegen der Fehlauslösung die Löschwasserzufuhr abgestellt, verbleibt Löschwasser in den Löschdüsen und dem Düsenrohrnetz und gefriert auch dort. Nur mit einem erheblichen Aufwand lässt sich die Feuerlöschanlage anschließend wieder in den Betriebszustand versetzen.To avoid frost damage has been filled in known systems, the exciter system with compressed air. In the event of improper air supply, condensation water forms in the exciter system, freezing into ice drops in the frost area, thus clogging or even damaging the stimulator line and the exciter. In the event of damage, the system will trip incorrectly, causing the extinguishing water to start and flow out through the open extinguishing nozzles. If the extinguishing water supply is turned off because of the false trip, extinguishing water remains in the extinguishing nozzles and the nozzle pipe network and also freezes there. Only with considerable effort, the fire extinguishing system can then put back in the operating condition.

In DE 196 01 777 A1 ist eine Feuerlöschanlage mit einem Druckgas gefüllten Sprinkler-Trockenrohrnetz, das an eine Löschwasserleitung angeschlossen ist, beschrieben. Hierbei bildet das Sprinkler-Trockenrohrnetz eine Anregerleitung, die durch einen Differential-Druckwächter überwacht wird. Das Löschwasserventil, welches im Auslösefall die Luft aus dem Anregersystem verdrängt, wird elektrisch oder pneumatisch-hydraulisch in Funktion gesetzt. Die Sprinkler bilden zugleich die Anreger und die Düsen zum Versprühen des Löschwassers. Auch wird eine offene Löschanlage mit an eine Sprinklerleitung angeschlossenen, offenen Löschdüsen beschrieben. Zur Anregung ist ein weiteres Sprinklerrohrnetz mit geschlossenen schnellöffnenden Sprinklern angeschlossen. Für frostgefährdete Bereiche sind diese Löschanlagen nicht vorgesehen.DE 196 01 777 A1 describes a fire-extinguishing system with a pressurized gas-filled sprinkler drying tube network, which is connected to an extinguishing water line. Here, the sprinkler drying pipe network forms an excitation line, which is monitored by a differential pressure switch. The extinguishing water valve, which displaces the air from the exciter system in the event of triggering, is put into operation electrically or pneumatically-hydraulically. The sprinklers also form the exciters and the nozzles for spraying the extinguishing water. Also, an open extinguishing system is described with connected to a sprinkler line, open extinguishing nozzles. To stimulate another sprinkler pipe network is connected with closed quick-opening sprinklers. For frost-prone areas these extinguishing systems are not provided.

In DE 297 15 451 ist ebenfalls eine Sprinkleranlage mit einem druckluftgefüllten Sprinklerrohrnetz beschrieben. Das Sprinklerrohrnetz ist an eine automatische Spüleinrichtung angeschlossen, über die regelmäßig eine bestimmte Luftmenge aus dem Sprinklerrohrnetz ins Freie entlassen wird. Die zugeführte trockene Luft soll Feuchtigkeit aus dem Rohrsystem heraustransportieren und Korrosion im Rohrsystem vermeiden. Diese Trockenanlage ist auch für frostgefährdete Bereiche geeignet.DE 297 15 451 likewise describes a sprinkler system with a compressed air-filled sprinkler pipe network. The sprinkler pipe network is connected to an automatic flushing device, through which a certain amount of air is released from the sprinkler pipe network into the open on a regular basis. The supplied dry air should transport moisture out of the pipe system and avoid corrosion in the pipe system. This drying system is also suitable for frost-prone areas.

Der Erfindung liegt die Aufgabe zugrunde, eine Feuerlöschanlage mit offenen Löschdüsen zu schaffen, bei der die in Frostbereichen liegenden Anreger und Löschdüsen vor einer Eispfropfenbildung mit Verstopfung bzw. Beschädigung geschützt sind, und mit der gleichzeitig der Auslösevorgang für das Löschmittel im Brandfalle beschleunigt wird.The invention has for its object to provide a fire extinguishing system with open extinguishing nozzles, in which the lying in the frost areas stimulator and extinguishing nozzles are protected against Eispfropfenbildung with constipation or damage, and with the same time the triggering process for the extinguishing agent is accelerated in case of fire.

Diese Aufgabe wird dadurch gelöst, dass das Löschventil durch den Druck eines pneumatischen Steuersystems im Schließzustand gehalten wird, dass die die Anreger enthaltende Anregerleitung Bestandteil eines ein druckbeaufschlagtes Gefrierschutzmittel enthaltenden hydraulischen Steuersystems ist, und dass das pneumatische Steuersystem durch mindestens ein Rückschlagventil mit dem hydraulischen Steuersystem verbunden ist.This object is achieved in that the extinguishing valve is held by the pressure of a pneumatic control system in the closed state, that the stimulator-containing stimulator line is part of a pressurized cryoprotectant containing hydraulic control system, and that the pneumatic control system connected by at least one check valve to the hydraulic control system is.

Mit dieser kombinierten Anregersteuerung wird einerseits mit dem hydraulischen Steuersystem ein Einfrieren der Anreger bis max. -30°C vermieden. Auch kann das mit Gefrierschutzmittel gefüllte Anregerrohrnetz ohne besondere Beachtung der Verlegung auf Gefälle, mit einer Einzellänge bis zu 300 m DN 15 Rohr installiert werden. Bei pneumatischen Anregern wird wegen der Kondensbildung eine Verlegung mit Gefälle gefordert. Andererseits wird mit dem erfindungsgemäßen pneumatischen Steuersystem ohne Frostgefährdung eine absolut sichere Auslösung der Feuerlöschanlage im Brandfalle mit einer Auslösezeit unter 10 sec. sichergestellt.With this combined exciter control, on the one hand with the hydraulic control system, a freezing of the exciter to max. -30 ° C avoided. It is also possible to install the stimulator tube network filled with antifreeze without particular attention to laying on slopes, with a single length of up to 300 m DN 15 pipe. With pneumatic exciters is because of the Condensation requires laying with slope. On the other hand, with the pneumatic control system according to the invention without frost hazard an absolutely safe release of the fire extinguishing system in case of fire with a tripping time of less than 10 sec. Ensured.

Eine besondere Ausgestaltung der Erfindung wird darin gesehen, dass die Anregerleitung des hydraulischen Steuersystems über eine Versorgungsleitung ein Behälter zugeordnet ist, der mit Druckluft und Gefrierschutzmittel gefüllt ist und die mit einem Absperrventil und einem Rückschlagventil versehene Versorgungsleitung einen Bypass aufweist, in dessen Bereich in der Versorgungsleitung ein oder zwei Wasserstop-Ventile vorgesehen sind, und dass in die Anregerleitung hinter der Verbindungsstelle mit der Versorgungsleitung ein oder zwei Rückschlagventile eingebaut sind, dass die Anregerleitung stromaufwärts vom Rückschlagventil an einer Anschlußstelle mit der Druckluft-Versorgungsleitung verbunden ist, und dass von der mit einem Drosselrückschlagventil versehenen Druckluft-Versorgungsleitung ein Bypass zu einem Schnellentlüfter geführt ist.A particular embodiment of the invention is seen in that the exciter line of the hydraulic control system is associated with a container via a supply line, which is filled with compressed air and cryoprotectant and provided with a shut-off valve and a check valve supply line has a bypass in the region in the supply line one or two water stop valves are provided, and that in the exciter line behind the junction with the supply line one or two check valves are installed, that the exciter line is connected upstream of the check valve at a connection point with the compressed air supply line, and that of the with a Throttle check valve provided compressed air supply line bypass is guided to a quick exhaust.

Mit dieser Maßnahme können die erforderlichen Betriebsmaßnahmen optimal durchgeführt werden. So läßt sich die Inbetriebnahme mit dem Abfüllvorgang und dem Errichten des Betriebszustandes, sowie der Auslösevorgang im Brandfalle mit einfachsten Mittel durchführen. Die durch Temperaturschwankungen im Anregerrohrnetz hervorgerufenen Druckunterschiede werden durch das Luftpolster im Druck-Luft-Gebrierschutzmittel-Behälter ausgeglichen. Dieser Ausgleich, erfolgt über eine Aus-gleichsbohrung in der Rückschlagklappe; die in der Versorgungsleitung für das Gefrierschutzmittel installiert ist.With this measure, the required operating measures can be optimally performed. Thus, the commissioning with the filling process and the establishment of the operating condition, as well as the triggering process in case of fire with the simplest means can perform. The pressure differences caused by temperature fluctuations in the stimulator tube network are compensated by the air cushion in the pressure-air / antifreeze container. This compensation, via an equal-equal bore in the check valve; which is installed in the supply line for the antifreeze.

Weitere Einzelheiten der Erfindung und deren Betriebsweisen werden nachfolgend anhand der einzigen Figur der Zeichnung beschrieben.Further details of the invention and its modes of operation are described below with reference to the single figure of the drawing.

Ein Behälter 1 ist mit Druckluft und Gefrierschutzmittel gefüllt. Das Gefrierschutzmittel wird mittels einer Füll-Leitung 5 und einem Füllstutzen 3 und die Druckluft mittels einer Füll-Leitung 6 und einem Füllstutzen 4 in den Behälter 1 eingefüllt. Damit stellt sich im oberen Bereich des Behälters 1 ein Luftpolster ein. Die Füll-Leitungen 5 und 6 sind jeweils mit einem Absperrventil 7 bzw. 10, einem Rückschlagventil 8,11 und einem Sicherheitsventil 9,12 versehen. Damit kann die Befüllung des Behälters problemlos erfolgen. Mit einem Füllstandanzeiger 2 wird die Befüllung kontrolliert. Von dem Behälter 1 ist eine Versorgungsleitung 13 für das Gefrierschutzmittel bis zu einer Anschlußstelle 19 geführt. In der Versorgungsleitung 13 sind dem Behälter 1 ein Absperrventil 14 ein weiteres Absperrventil 15, sowie eine Rückschlagklappe 16 mit Ausgleichsbohrung zugeordnet. Zwischen der Rückschlagklappe 16 und der Anschlußstelle 19 ist ein mit einem Absperrventil 17a versehener Bypass 17 vorgesehen, wobei zwischen den Verbindungsstellen 13a und 13b zwei Wasserstop-Ventile 18 in der Versorgungsleitung 13 eingebaut sind. Das zweite Wasserstop-Ventil ist zur Sicherheit eingebaut, wenn eines der Ventile defekt wird. Demzufolge bleibt die Anlage auch mit einem Ventil funktionsfähig.A container 1 is filled with compressed air and antifreeze. The antifreeze is filled by means of a filling line 5 and a filler neck 3 and the compressed air by means of a filling line 6 and a filler neck 4 in the container 1. As a result, an air cushion is established in the upper region of the container 1. The filling lines 5 and 6 are each provided with a shut-off valve 7 or 10, a check valve 8,11 and a safety valve 9,12. Thus, the filling of the container can be done easily. With a level indicator 2, the filling is controlled. From the container 1, a supply line 13 for the antifreeze is led to a junction 19. In the supply line 13, the container 1, a shut-off valve 14, a further shut-off valve 15, and a non-return valve 16 associated with a compensation bore. Between the non-return valve 16 and the connection point 19, a bypass 17 provided with a shut-off valve 17 is provided, wherein two water-stop valves 18 are installed in the supply line 13 between the connection points 13a and 13b. The second water stop valve is installed for safety if one of the valves becomes defective. As a result, the system also remains functional with a valve.

An der Anschlußstelle 19 ist die Versorgungsleitung 13 mit einer Anregerleitung 20 verbunden, die in eine Anregerleitung 20a mit den Anregern 21, z.B. Sprinkler oder gleichartige geschlossene Düsen, übergeht. Am Ende der Anregerleitung 20a ist ein Entlüftungs-Testventil 22 vorgesehen. Mit einer strichpunktierten Linie 64 ist die Frostgrenze dargestellt. Demnach liegen Teile der Anregerleitung 20, sowie die Anregerleitung 20a mit den Anregern 21 im frostgefährdeten Bereich. Innerhalb des frostgeschützten Bereichs geht an der Anschlußstelle 23 eine Prüfleitung 24 mit einem Manometer-Ventil 25 und einem Drossel-Zwischenstück 25a zu einem Manometer 26 ab. Eine weitere Prüfleitung 28 ist zu einem Druckschwund-Meldeschalter 27 geführt. Die.Anregerleitung 20 ist über ein Absperrventil 29 mit einem Rückschlagventil 30 verbunden. Auch hier ist aus Sicherheitsgründen ein zweites Rückschlagventil 31 vorgesehen. Mit 61 ist die Füllgrenze des Gefrierschutzmittels bezeichnet.At the connection point 19, the supply line 13 is connected to an excitation line 20, which merges into an exciter line 20a with the exciters 21, eg sprinklers or similar closed nozzles. At the end of the stimulator line 20a, a vent test valve 22 is provided. With a dot-dash line 64, the frost limit is shown. Accordingly, there are parts of the exciter 20, as well as the stimulator line 20a with the exciters 21 in the frost-prone area. Within the frost-protected area at the connection point 23 is a test line 24 with a pressure gauge valve 25 and a throttle intermediate piece 25 a to a pressure gauge 26 from. Another test line 28 is led to a pressure decrease signaling switch 27. Die.Anregerleitung 20 is connected via a shut-off valve 29 with a check valve 30. Again, a second check valve 31 is provided for safety reasons. With 61, the filling limit of the cryoprotectant is designated.

Die oberhalb der Füllgrenze 61 dargestellten Anlagenteile betreffen das hydraulische Steuersystem 60.The system parts shown above the filling limit 61 relate to the hydraulic control system 60.

Nachfolgend wird die eigentliche Löscheinheit beschrieben, die u.a. aus dem Einkammerventil 50 mit dem Steuerkolben 51, der Spannbrücke 52 als Abschlußorgan und dem Kniehebel 53 besteht. Fernerhin ist das Einkammerventil 50 einerseits mit einem Absperrschieber 54 und einer Löscbwasserleitung 55 und andererseits mit einer Löschleitung 56 und einem Düsenrohrnetz 57 mit offenen Düsen 58 verbunden. Teile der Löschleitung 56 , sowie das Düsenrohrnetz 57 mit den Düsen 58 sind ebenfalls außerhalb der. Frostgrenze 64 montiert. Im Betriebzustand der Feuerlöschanlage ist der Absperrschieber 54 geöffnet und das Einkammerventil 50 mittels der Spannbrücke 52 geschlossen, wobei der Kniehebel 53 die Spannbrücke arretiert.The actual erase unit is described below, which i.a. consists of the single-chamber valve 50 with the control piston 51, the clamping bridge 52 as a closure member and the toggle 53. Furthermore, the one-chamber valve 50 is connected, on the one hand, to a gate valve 54 and a dissolving water line 55 and, on the other hand, to an extinguishing line 56 and a nozzle tube net 57 with open nozzles 58. Parts of the extinguishing line 56, and the nozzle tube network 57 with the nozzles 58 are also outside the. Frost limit 64 mounted. In the operating state of the fire extinguishing system, the gate valve 54 is opened and the one-chamber valve 50 is closed by means of the clamping bridge 52, wherein the toggle lever 53 locks the clamping bridge.

Nachfolgend wird das hydraulische Steuersystem 59 beschrieben.Hereinafter, the hydraulic control system 59 will be described.

Eine Druckluft-Versorgungsleitung 32 ist an eine Druckluftquelle 32a mit einem Kompressor angeschlossen und bis zum Steuerkolben 51 des Einkammerventils 50 geführt. In die Leitung 32 ist ein Absperrventil 33 und ein Drosselrückschlagventil 34 mit einer 0,30 mm großen Drosselöffnung eingebaut. Unterhalb des Drosselrückschlagventils 34 ist bei der Anschlußstelle 35 die verlängerte Anregerleitung 20b angeschlossen, die andererseits mit dem Rückschlagventil 31 verbunden ist. Mit 65 ist die Füllgrenze für die Druckluft bezeichnet. Bei 35 geht eine Steuerleitung 32b ab, die einerseits in eine Messleitung 37 mit einem Manometerventil 38 und einem Manometer 39 und andererseits in eine Anregerleitung 36 mit einem Hand-Anregerventil 40 abzweigt. Zwischen der Druckluftquelle 32a und dem Absperrventil 33 ist an einer Verbindungsstelle 41 eine mit zwei Absperrventilen 43 und 44 versehene Bypassleitung 42 angeschlossen, die zu einem Schnellentlüfter 45 mit einem Manometer 66 geführt ist. In den Schnellentlüfter 45 ist eine Membran 46 und eine Drosselöffnung 47 eingebaut, die den Schnellentlüfter 45 in einen oberen Membranraum 62 und einen unteren Entlüftungsraum 63 aufteilt. Die Bypassleitung 42 ist am Entlüftungsraum 63 angeschlossen. Fernerhin ist eine Absperrklappe 48 mit einem Stellhebel 49 vorgesehen, der mittels der Membran 46 auf die Absperrklappe 48 einwirkt und diese im Betriebszustand geschlossen hält.A compressed air supply line 32 is connected to a compressed air source 32 a with a compressor and guided to the control piston 51 of the single-chamber valve 50. In line 32, a check valve 33 and a throttle check valve 34 is installed with a 0.30 mm throttle opening. Below the throttling check valve 34 is connected to the connection point 35, the extended exciter line 20 b, which is on the other hand connected to the check valve 31. 65 indicates the filling limit for the compressed air. At 35, a control line 32b goes off, which branches off on the one hand in a measuring line 37 with a pressure gauge valve 38 and a pressure gauge 39 and on the other hand in an excitation line 36 with a manual exciter valve 40. Between the compressed air source 32a and the shut-off valve 33, a bypass line 42, which is provided with two shut-off valves 43 and 44, is connected at a connection point 41, which is led to a rapid exhaust fan 45 with a manometer 66. In the quick exhaust 45, a diaphragm 46 and a throttle opening 47 is installed, which divides the quick exhaust 45 into an upper diaphragm space 62 and a lower vent space 63. The bypass line 42 is connected to the venting chamber 63. Furthermore, a shut-off valve 48 is provided with an adjusting lever 49, which acts on the shut-off valve 48 by means of the membrane 46 and keeps it closed in the operating state.

Nachfolgend werden die Betriebweisen der Feuerlöschanlage beschrieben. The following describes the operation of the fire extinguishing system .

Die erfindungsgemäße Feuerlöschanlage ist derart eingerichtet, dass sowohl die Inbetriebnahme als auch der Auslösevorgang geführt werden können.The fire extinguishing system according to the invention is set up such that both the startup and the tripping operation can be performed.

A. InbetriebnahmeA. Commissioning

Die Inbetriebnahme der Feuerlöschanlage beginnt mit einem Abfüllvorgang und einer Maßnahme zum Errichten des Betriebzustandes.The commissioning of the fire extinguishing system begins with a filling process and a measure to establish the operating state.

Al-AbfüllvorgangAl-filling process

Wenn der Behälter 1 mit Druckluft und Gefrierschutzmittel gefüllt ist, werden die Absperrventile 14, 15 und 17a geöffnet. Die Absperrventile 22 und 29 sind geschlossen. Damit werden bei geschlossenen Anregern 21 die Versorgungsleitung 13 mit dem Bypass 17 und die Anregerleitungen 20 und 20a bis zu den Absperrventilen 22 und 29 mit dem Gefrierschutzmittel auf 6 bar Betriebsdruck gefüllt, der am Manometer 26 angezeigt wird. Anschließend werden die Anregerleitungen 20 und 20a über das Entlüftungsventil 22 entlüftet und gleichzeitig eine Funktionsprobe des Druckschwund-Meldeschalters 27 durchgeführt. Nach dem Schließen des Entlüftungs-Testventils 22 und des Absperrventils 17a sowie dem Öffnen des Absperrventils 29 ist der Abfüllvorgang bis zur Füllgrenze 61 abgeschlossen. Das Rückschlagventil 30 hält das hydraulische Steuermittel zurück.When the container 1 is filled with compressed air and antifreeze, the shut-off valves 14, 15 and 17a are opened. The shut-off valves 22 and 29 are closed. Thus, with closed exciters 21, the supply line 13 with the bypass 17 and the exciter lines 20 and 20a are filled up to the shut-off valves 22 and 29 with the antifreeze to 6 bar operating pressure, which is displayed on the manometer 26. Subsequently, the exciter lines 20 and 20a are vented via the vent valve 22 and at the same time performed a functional test of the pressure-decrease signaling switch 27. After closing the venting test valve 22 and the shut-off valve 17 a and the opening of the shut-off valve 29, the filling process is completed up to the filling limit 61. The check valve 30 restrains the hydraulic control means.

A2-Einrichten des BetriebzustandesA2-setting up the operating state

Das Absperrventil 33 wird geöffnet und der Kompressor der Druckgasquelle 32a eingeschaltet. Damit füllt sich das hydraulische Steuersystem 59 mit einer Betriebsdruckluft von 4,5 bar. Mit dieser Drucklluft wird mittels des Steuerkolbens 51 bei geschlossenem Absperrschieber 54 das Einkammerventil 50 verriegelt und geschlossen gehalten. Damit ist die Versorgungsleitung 32 mit dem Drosselrückschlagventil 34 mit Druckluft gefüllt. Ebenso sind die Leitungen 20b, 37 und 36 mit Druckluft gefüllt. Durch Öffnen der Absperrventile 43 und 44 wird nun die Bypassleitung 42 und über die Drosselöffnung 47 der Schnellentlüfter 45 gefüllt, wobei sich der Membranraum 62 und der Entlüftungsraum 63 gleichmäßig mit der Betriebsdruckluft füllen. Die Absperrklappe 48 wird dadurch geschlossen gehalten.The shut-off valve 33 is opened and the compressor of the compressed gas source 32 a is turned on. Thus, the hydraulic control system 59 fills with an operating pressure of 4.5 bar. With this compressed air, the single-chamber valve 50 is locked and kept closed by means of the control piston 51 when the gate valve 54 is closed. Thus, the supply line 32 is filled with the throttle check valve 34 with compressed air. Likewise, the lines 20b, 37 and 36 are filled with compressed air. By opening the shut-off valves 43 and 44, the bypass line 42 and via the throttle opening 47 of the rapid exhaust fan 45 is now filled, wherein the membrane space 62 and the vent space 63 evenly with the operating compressed air. The butterfly valve 48 is thereby kept closed.

In diesem Betriebszustand ist die Feuerlöschanlage nach dem Schließen des Absperrventils 43 eingerichtet und durch Öffnen des Absperrschiebers 54 für den Einsatzfall bereit.In this operating state, the fire extinguishing system is set up after closing the shut-off valve 43 and ready by opening the gate valve 54 for the application.

B. Auslösevorgang bei BrandB. Tripping operation in case of fire

Bei der Auslösung eines Anregers 21 im Brandfalle, z.B. beim Öffnen eines Sprinklers, fließt das Druckluft-Gefrierschutzmittel über den geöffneten Anreger 21 ab. Die in der Versorgungsleitung 13 installierten Wasserstop-Ventile 18 werden automatisch durch Druckabfall aktiviert (geschlossen) und unterbinden das weitere Einströmen von Gefrierschutzmittel in das Anregerrohrnetz 20 und 20a. Auch aus der Prüfleitung 24 fließt das Gefrierschutzmittel mit aus, so dass der Druckschwund-Meldeschalter 27 einen Druckabfall an eine Meldestelle, z.B. eine Löschzentrale oder die Feuerwehr, anzeigt. Durch das Schließen der Wasserstopventile 18 wird der Druckabbau im Anregerrohrnetz 20und 20a beschleunigt, weil gleichzeitig die Versorgungsluft des pneumatischen Steuersystems 59 über die Rückschlagventile 31 und 30 in die Anregerleitung 20 mit abfließt. Bedingt durch die 0,30 mm Drosselöffnung im Drosselrückschlagventil 34 kann die Versorgungsluft nicht schneller nachfließen.When a stimulator 21 is triggered in case of fire, e.g. when opening a sprinkler, the compressed air antifreeze flows over the open exciter 21. The installed in the supply line 13 water stop valves 18 are automatically activated by pressure drop (closed) and prevent further inflow of cryoprotectant in the Anregerrohrnetz 20 and 20a. The cryoprotectant also flows out of the test line 24, so that the pressure-loss signaling switch 27 effects a pressure drop to a reporting point, e.g. a fire station or the fire department. By closing the water stop valves 18, the pressure reduction in Anregerrohrnetz 20und 20a is accelerated, because at the same time the supply air of the pneumatic control system 59 via the check valves 31 and 30 flows into the Anregerleitung 20 with. Due to the 0.30 mm throttle opening in the throttle check valve 34, the supply air can not flow more quickly.

Der Druckabbau im hydraulischen Steuersystem 60 bedingt einen Druckabbau im pneumatischen Steuersystem 59, weil über die Rückschlagventile 30 und 31 Druckluft in die Anregerleitung 20 abfließt. Dieser Druckabbau aktiviert bei einem Betriebsdruck von 4,2 bar den Schnellentlüfter 45. Wegen der Drosselöffnung 47 fließt die Druckluft aus dem Entlüftungsraum 63 schneller ab als aus dem Membranraum 62. Demzufolge drückt die Membran 46 den Stellhebel 49 nach unten und öffnet die Absperrklappe 48. Nun fließt die gesamte Druckluft des pneumatischen Steuersystems 59 komplett über die Entleerungsleitung 67 ab. Somit wird über die Leitung 32 der Steuerkolben 51 entlastet, wodurch der Kniehebel 53 die Arretierung der Spannbrücke 52 aufhebt und somit das Einkammerventil 50 durch den Druck des Löschwassers geöffnet wird. Bei geöffnetem Absperrschieber 54 fließt das Löschmittel in die Düsenrohrleitung 57 und damit in die offenen Löschdüsen 58. Mit diesen Maßnahmen wird eine schnelle Auslösung des Einkammerventils 50 erreicht.The pressure reduction in the hydraulic control system 60 causes a pressure reduction in the pneumatic control system 59, because the check valves 30 and 31, compressed air flows into the excitation line 20. This pressure reduction activated at an operating pressure of 4.2 bar the quick exhaust 45. Because of the throttle opening 47, the compressed air flows from the venting chamber 63 faster As a result, the membrane 46 pushes the lever 49 down and opens the butterfly valve 48. Now, the entire compressed air of the pneumatic control system 59 flows completely through the drain line 67 from. Thus, the control piston 51 is relieved via the line 32, whereby the toggle lever 53, the locking of the clamping bridge 52 cancels and thus the single-chamber valve 50 is opened by the pressure of the extinguishing water. With open gate valve 54, the extinguishing agent flows into the nozzle pipe 57 and thus into the open extinguishing nozzles 58. With these measures, a rapid release of the single-chamber valve 50 is achieved.

B1. HandauslösungB1. manual release

Es gibt Fälle, bei denen die Feuerlöschanlage ausgelöst werden muss, ohne das ein Anreger 21 geöffnet ist. Zu diesem Zweck ist ein Hand-Anregerventil 40 am Ende der Anregerleitung 36 vorgesehen. Wird das Ventil 40 von Hand geöffnet, fließt die Druckluft aus den Leitungen 32, 32b und 36 schnell ab, so dass in wenigen Sekunden der Steuerkolben 51 entlastet und damit das Einkammerventil 50 geöffnet wird.There are cases where the fire extinguishing system must be triggered without an exciter 21 is open. For this purpose, a manual stimulator valve 40 is provided at the end of the stimulator line 36. If the valve 40 is opened by hand, the compressed air flows from the lines 32, 32b and 36 quickly, so that relieved in a few seconds, the control piston 51 and thus the one-chamber valve 50 is opened.

Claims (13)

  1. A fire extinguishing system comprising an extinguishing valve (50) in an extinguishing line (56) with open nozzles (58), said valve being controlled by exciters (21), the exciters (21) being arranged in an exciter line (20) and the open nozzles (58) with their nozzle pipeline net being arranged in frost-prone regions and a control line (32), which is connected with a source of pressurized air (32a), acting on a control piston (51) of the extinguishing valve (50) connected to a fire water supply line (55),
    characterized in
    that the extinguishing valve (50) is held in the closed position by the pressure of a pneumatic control system (59), that the exciter line (20) including the exciters (21) is part of a hydraulic control system (60) containing a pressurized antifreeze agent, and that the pneumatic control system (59) is connected to the hydraulic control system (60) through at least one check valve (30, 31).
  2. The fire extinguishing system of claim 1, characterized in that the exciter line (20) of the hydraulic control system (60) is connected to a container (1) through a supply line (13), which container is filled with the antifreeze agent, that the supply line (13) which is provided with a shut-off valve (15) and a check flap (16) with a balance bore comprises a bypass (17) bridging at least one water stop valve (18), that at least one check valve (30, 31) is mounted in the exciter line (20) downstream of the connection (19) thereof with the supply line (13), that the exciter line (20, 36) is connected to a pressurized air supply line (32) at a connection (35) upstream of the check valve (30, 31), and that a by-pass (42) extends from the pressurized air supply line (32) provided with a throttle valve (34) to a quick-acting de-aerator (45).
  3. The fire extinguishing system of claim 1 or 2, characterized in that the extinguishing valve (50) comprises a control piston (51), a clamping yoke (52) and a toggle lever (53) on which the control piston (51) acts.
  4. The fire extinguishing system of claim 2 or 3, characterized in that the container (1) is provided with a fill nozzle (3) for connection to a fill line (5) for the antifreeze agent and a fill nozzle (4) for connection to a fill line (6) for the pressurized air.
  5. The fire extinguishing system of claim 4, characterized in that the fill lines (5, 6) are respectively mounted with a shut-off valve (7, 10), a check valve (8, 11) and a safety valve (9, 12).
  6. The fire extinguishing system of one of claims 2 to 5, characterized in that the container (1) is provided with a level indicator (2).
  7. The fire extinguishing system of one of claims 2 to 6, characterized in that the exciter line (20) comprises a shut-off valve (29) between the connection (19) with the supply line (13) and the check valve (30).
  8. The fire extinguishing system of one of claims 1 to 7, characterized in that a first check line (24) is branched from an exciter line (20) to a manometer (26) and another check line (28) is branched from this check line (24) to a pressure loss signaling contact (27), and that the first check line (24) is mounted with a manometer valve (25) with a throttle adapter (25a).
  9. The fire extinguishing system of one of claims 1 to 8, characterized in that a pressurized air supply line (32) is provided with a shut-off valve (33) and a throttle check valve (34) with a throttle opening of approximately 0.30 mm.
  10. The fire extinguishing system of one of claims 1 to 9, characterized in that a bypass line (42) branches from a pressurized air supply line (32), said bypass line opening into the environment and being connected with a quick-acting de-aerator (45).
  11. The fire extinguishing system of claim 10, characterized in that the quick-acting de-aerator (45) comprises a membrane (46) with a throttle opening (47), acting on a shut-off flap (48) through an actuating lever (49).
  12. The fire extinguishing system of claim 11, characterized in that the membrane (46) has a throttle opening (47) and divides the quick-acting de-aerator (45) into an upper membrane space (62) and a lower de aeration space (63), and that the bypass line (42) is connected with the de-aeration space (63).
  13. The fire extinguishing system of claim 9, characterized in that, on the one hand, a check line (37) branches from the pressurized air supply line (32) to a manometer (39) and, on the other hand, the exciter line (36) branches from the line (32) upstream of the check valve (30, 31) to a manual exciter valve (40).
EP00126899A 1999-12-24 2000-12-08 Fire extinguishing system Expired - Lifetime EP1110583B1 (en)

Applications Claiming Priority (2)

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DE19962940A DE19962940A1 (en) 1999-12-24 1999-12-24 Fire extinguishing system
DE19962940 1999-12-24

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EP1110583A1 EP1110583A1 (en) 2001-06-27
EP1110583B1 true EP1110583B1 (en) 2006-03-15

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EP (1) EP1110583B1 (en)
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CZ (1) CZ299504B6 (en)
DE (2) DE19962940A1 (en)
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Publication number Priority date Publication date Assignee Title
CN102632189A (en) * 2012-03-31 2012-08-15 重庆乾合科技有限公司 Automatic deicing and dewatering system

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FR2926732A1 (en) * 2008-01-28 2009-07-31 Jean Michel Polerowicz Hostile fire extinguishing device for tires of landing gears of aircraft, has reservoir containing fire extinguishing material, and including outlet and inlet that are equipped with respective valves, where distributor is provided at outlet
CN102247682B (en) * 2011-07-08 2013-06-12 北京航空航天大学 Fire fighting system using superfine dry powder as extinguishing agent and using method thereof
CN103656927B (en) * 2013-11-29 2016-06-01 大连船舶重工集团有限公司 Container-ship emergency fire pump system
CN106592698A (en) * 2016-12-15 2017-04-26 山东钢铁股份有限公司 Winter anti-freezing and emergency system and method used for workshop fire hoses

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DE2345380C3 (en) * 1973-09-08 1980-07-31 Walther & Cie Ag, 5000 Koeln Wet sprinkler system for large cold stores
DE4320442C2 (en) * 1993-06-21 1996-09-26 Total Feuerschutz Gmbh Device for a stationary fire extinguishing system and method for operating the fire extinguishing system
DE19601777C2 (en) * 1996-01-19 1997-11-20 Total Feuerschutz Gmbh Stationary fire extinguishing system
DE19716589B4 (en) * 1997-04-21 2004-07-22 Total Walther Gmbh, Feuerschutz Und Sicherheit Method and device for operating a fire extinguishing dry sprinkler system
DE29715451U1 (en) * 1997-08-28 1998-01-02 Minimax Gmbh, 23843 Bad Oldesloe Sprinkler system with sprinkler pipe network filled with compressed air

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Publication number Priority date Publication date Assignee Title
CN102632189A (en) * 2012-03-31 2012-08-15 重庆乾合科技有限公司 Automatic deicing and dewatering system

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PL196505B1 (en) 2008-01-31
CZ20004803A3 (en) 2001-08-15
ATE320286T1 (en) 2006-04-15
EP1110583A1 (en) 2001-06-27
DE19962940A1 (en) 2001-07-19
CZ299504B6 (en) 2008-08-20
PL344707A1 (en) 2001-07-02
DE50012401D1 (en) 2006-05-11

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