EP3400078B1 - Alarm valve station for a fire alarm system - Google Patents

Alarm valve station for a fire alarm system Download PDF

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Publication number
EP3400078B1
EP3400078B1 EP16801795.2A EP16801795A EP3400078B1 EP 3400078 B1 EP3400078 B1 EP 3400078B1 EP 16801795 A EP16801795 A EP 16801795A EP 3400078 B1 EP3400078 B1 EP 3400078B1
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EP
European Patent Office
Prior art keywords
alarm
delay
signal
delay device
fire
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EP16801795.2A
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German (de)
French (fr)
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EP3400078A1 (en
Inventor
Matthias Pohl
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Minimax GmbH and Co KG
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Minimax GmbH and Co KG
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Publication of EP3400078A1 publication Critical patent/EP3400078A1/en
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
    • A62C37/44—Control 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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • A62C35/68—Details, e.g. of pipes or valve systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/04—Hydraulic or pneumatic actuation of the alarm, e.g. by change of fluid pressure

Definitions

  • the present invention relates to an alarm valve station for a fire alarm system, with an alarm valve, in particular a wet alarm valve, with an extinguishing fluid inlet and an extinguishing fluid outlet, the alarm valve being set up to selectively enable or block the extinguishing fluid flow between the extinguishing fluid inlet and the extinguishing fluid outlet, a pressure sensor which is fluid-conducting is connected to the alarm valve and is set up to detect a change in pressure and convert it into an electrical alarm signal, and an alarm delay device for delaying the alarm signal.
  • the invention further relates to a fire alarm system with such an alarm valve station and a fire extinguishing system.
  • the extinguishing fluid inlet of the alarm valve of such alarm valve stations is usually fluidly connected to an extinguishing fluid supply.
  • the extinguishing fluid outlet of the alarm valve of such alarm valve stations is usually fluidly connected to a sprinkler arrangement. Triggering one or more of the connected sprinklers creates a flow of extinguishing fluid that can be (passively) released by the alarm valve and thus also detected, provided that the alarm valve, which is preferred, has one or more sensors for status detection, for example of the closed state of the valve (see for example JP H08 117357 A ), the pressure in the alarm channel (valve), etc.
  • the use of hydraulic delay tanks has some disadvantages.
  • the delay time is determined by the tank size and the pressure conditions in the water supply and cannot be changed easily without changing the delay tank.
  • the delay container is a safety-relevant hydraulic component and, as a result, involves high production and maintenance costs.
  • a hydraulic delay tank takes up a large amount of space Alarm valve station, which limits the applicability especially in confined spaces.
  • hydraulic delay tanks require such an arrangement of the lines connected to them that the extinguishing fluid automatically flows out of the delay tank, the pressure sensor and the alarm line after actuation, which limits the design options for implementation.
  • the object on which the invention is based is achieved by an alarm valve station of the type mentioned at the outset, the alarm delay device being designed as an electrical alarm delay direction and being connected to the pressure sensor in a signal-conducting manner.
  • the invention makes use of the knowledge that instead of a hydraulic alarm delay using an upstream delay container, the alarm delay can be achieved by an electrical alarm delay device which is connected downstream of the pressure sensor.
  • the electrical delay device uses the conversion of the detected pressure fluctuation into the electrical alarm signal, which is carried out by the pressure sensor.
  • An electrical delay device can be used universally, since its properties, such as in particular the delay time, do not depend on the structural design of the alarm delay device, as would be the case with a hydraulic delay tank.
  • An alarm valve station with an electrical alarm delay device also requires less production and maintenance.
  • the alarm valve of the alarm valve station preferably has a closing body, which can be moved passively back and forth between a blocking position and a release position.
  • the extinguishing fluid inlet of the alarm valve is preferably set up to be connected in a fluid-conducting manner to an extinguishing fluid supply.
  • the extinguishing fluid outlet of the alarm valve is preferably set up to to be fluidly connected to a sprinkler arrangement.
  • the closing body When the closing body is in the release position, the extinguishing fluid flow between the extinguishing fluid inlet and the extinguishing fluid outlet of the alarm valve is released.
  • the closing body In the case of wet alarm valves according to the invention, the closing body is opened passively when the pressure on the fluid inlet chamber side is higher than the pressure on the fluid outlet chamber side.
  • the alarm delay device is set up to delay the forwarding of a received electrical alarm signal by a delay period.
  • the forwarding of a received electrical alarm signal is preferably delayed by the electrical alarm signal being held back for the delay period.
  • the forwarding of the electrical alarm signal is delayed by rejecting the received primary electrical alarm signal and, after the delay period has elapsed, generating a new secondary electrical alarm signal.
  • the delay period is preferably adjustable. Because the delay period is adjustable, the alarm valve station can be adapted to the fire alarm system or the fire extinguishing system in which the alarm valve station is used.
  • the alarm valve station according to the invention is further advantageously developed in that the alarm delay device has an adjusting means which can be actuated to set the delay period.
  • the setting means is preferably designed to be operated manually. In this way e.g. Service or maintenance staff manually set the delay time of the alarm delay device on site at the alarm valve station.
  • the setting means is designed to be actuated by setting signals.
  • the setting means has one or more analog or digital switches.
  • the setting means preferably comprises one or more toggle switches, one or more rotary switches and / or one or more push buttons.
  • the setting means preferably comprises a rotary controller, a potentiometer and / or a jumper.
  • the alarm delay device has a communication module which is designed to receive and / or send data.
  • the communication module is preferably connected to the setting means in a signal-conducting manner.
  • the communication module is preferably designed to receive setting parameters, such as the delay period.
  • the communication module is preferably set up to communicate with a remote control device and / or a fire alarm and / or extinguishing control center.
  • the communication module is preferably designed to receive control signals. Furthermore, a communication module is preferred which is designed to send status information of the alarm delay device. In a further preferred embodiment of the alarm valve station according to the invention, the communication module has a plurality of communication interfaces. Using the communication interface (s), data can be exchanged simultaneously with several devices.
  • the alarm valve station according to the invention is further advantageously developed in that the communication module has a transmitter unit and a receiver unit and is preferably set up to exchange data bidirectionally with a remote control device.
  • the data exchange is preferably wireless. Alternatively or additionally, the data exchange is wired.
  • the alarm delay device is set up to permanently prevent the forwarding of the received electrical alarm signal and / or to reject a received electrical alarm signal.
  • the permanent prevention of the transmission of a received electrical alarm signal will also be understood in the sense of the invention as an infinite delay in the transmission of the alarm signal.
  • the operating mode of permanently preventing the transmission of a received electrical alarm signal and / or rejecting a received electrical alarm signal is used in particular when commissioning or maintaining an alarm valve station. This can ensure that at Commissioning or maintenance of the alarm valve station does not inadvertently forward an alarm signal.
  • the alarm delay device is set up to cancel an ongoing delay in the forwarding of an electrical alarm signal before the delay period has expired.
  • the alarm delay device is preferably set up to cancel an already running delay process before the end of the delay period.
  • the setting means has an actuating element, preferably in the form of a push button, which is set up to prematurely cancel the ongoing delay in forwarding an electrical alarm signal.
  • the setting means preferably has an actuating element, in particular in the form of a push button, which is set up to initiate the delay in forwarding an electrical alarm signal manually.
  • the setting means and / or the communication module is or are combined in a control device of the alarm delay device.
  • the pressure sensor and the alarm delay device are formed separately from one another and are preferably connected to one another in a signal-conducting manner.
  • the pressure sensor and the alarm delay device are each preferably independent and structurally separate components. Since the pressure sensor and the alarm delay device can be replaced independently of one another in the event of a defect, the maintenance outlay (and thus the costs incurred) in the event of a malfunction of the pressure sensor or the alarm delay device is considerably reduced.
  • the pressure sensor and the alarm delay device are designed as a structural unit.
  • the term pressure sensor is understood as a generic term, which also includes pressure switches, for example.
  • the construction and commissioning of the alarm valve station is considerably simplified due to the smaller number of components.
  • the risk of a malfunction is reduced, since potential sources of error in the installation of the pressure sensor and the alarm delay device are avoided by designing the pressure sensor and the alarm delay device as a structural unit.
  • a further preferred embodiment of the alarm valve station according to the invention has an alarm line which is fluidly connected to the alarm valve, the pressure sensor and an emptying device, the emptying device being set up to automatically empty the alarm line and any components connected to it when the alarm valve is in Locked position.
  • the alarm line is preferably designed as an internal alarm channel and / or as an external power.
  • the remote control device is preferably designed as a stationary or portable computer or mobile radio device.
  • the remote control device preferably has a human-machine interface, such as a display, in particular a touchscreen, and / or one or more push buttons or buttons.
  • the object on which the invention is based is also achieved by a fire alarm system with an alarm valve station according to one of the embodiments described above and a fire alarm and / or extinguishing control center.
  • the fire alarm and / or extinguishing control center of the fire alarm system according to the invention is preferably connected in a signal-conducting manner to the (secondary side of the) alarm delay device.
  • the fire alarm and / or extinguishing control center is preferably set up to report a fire alarm to an external body.
  • the external body is security personnel or a fire-fighting station, such as the fire brigade.
  • the fire alarm and / or extinguishing control center is preferably set up to control an electrically operated alarm device, such as an alarm horn.
  • the fire alarm and / or extinguishing control center is preferably set up to control a mechanically operated alarm device, such as a hydraulic alarm bell.
  • the communication module of the alarm valve station is set up to exchange data unidirectionally or bidirectionally with the fire alarm and / or extinguishing control center.
  • the fire alarm system according to the invention is further advantageously developed in that the fire alarm and / or extinguishing control center and the alarm delay device are designed as a structural unit. This minimizes the size of the alarm valve station.
  • the integration of the alarm delay device into the fire alarm and / or extinguishing control center also reduces the effort required for starting up the fire alarm system.
  • the fire alarm system according to the invention is advantageously further developed in that the fire alarm and / or extinguishing control center is connected to the remote control device in a signal-conducting manner.
  • the signal-conducting connection between the fire alarm and / or extinguishing control center and the remote control device or the alarm delay device further increases the degree of adjustability of the fire alarm system and thus the ease of use.
  • a mechanically operated alarm device such as a hydraulic alarm bell, is preferably connected to the alarm line in a fluid-conducting manner.
  • the object on which the invention is based is further achieved by a fire extinguishing system with an alarm valve station according to one of the above-described embodiments or a fire alarm system according to one of the above-described embodiments, the fire extinguishing system according to the invention further comprising an extinguishing fluid supply and a sprinkler arrangement.
  • the extinguishing fluid supply is fluid-conducting with the extinguishing fluid inlet of the Alarm valve connected.
  • the sprinkler arrangement is fluidly connected to the extinguishing fluid outlet of the alarm valve.
  • the fire extinguishing system 200 has a fire alarm system 100, an extinguishing fluid supply 201 and a sprinkler arrangement 203.
  • the fire alarm system 100 comprises an alarm valve station 1 and a fire alarm and / or extinguishing control center 101.
  • the alarm valve station 1 comprises an alarm valve 3 with an extinguishing fluid inlet 5 and an extinguishing fluid outlet 7, the alarm valve 3 being set up to selectively enable or disable and possibly detect the extinguishing fluid flow between the extinguishing fluid inlet and the extinguishing fluid outlet.
  • the alarm valve station 1 further comprises a pressure sensor, which is connected in a fluid-conducting manner to the alarm valve 3 and is set up to detect a change in pressure and to convert it into an electrical, so-called primary, alarm signal 13.
  • the alarm valve station 1 has an alarm delay device 15 for delaying the received primary alarm signal, so that it becomes a secondary alarm signal 13 '.
  • the alarm delay device 15 is connected on the input side in a signal-conducting manner to the pressure sensor 11 and is designed as an electrical alarm delay device 15.
  • the fire alarm and / or extinguishing control center 101 of the fire alarm system 100 is connected in a signal-conducting manner to the output of the delay device 15 of the alarm valve station 1 and to an electrically operated alarm device 103.
  • a remote control device 107 is optionally provided, which is connected in a signal-conducting manner to the alarm delay device 15 and is set up to control it.
  • the extinguishing fluid supply 201 of the fire extinguishing system 200 is fluidly connected to the extinguishing fluid inlet 5 of the alarm valve 3.
  • the sprinkler arrangement 203 of the fire extinguishing system 200 is connected in a fluid-conducting manner to the extinguishing fluid outlet 7 of the alarm valve 3.
  • the alarm delay device 15 is set up to delay the forwarding of a received electrical alarm signal 13 by a delay period. Furthermore, the alarm delay device 15 is set up to permanently prevent the forwarding of a received electrical alarm signal or to discard a received electrical alarm signal on the output side. In addition, the alarm delay device 15 is set up to prematurely cancel an ongoing delay in the forwarding of an electrical alarm signal before the delay period expires.
  • the alarm valve station 1 further comprises an alarm line 25, which is connected in a fluid-conducting manner to the alarm valve 3, the pressure sensor 11 and an emptying device 27, the emptying device 27 being set up to automatically empty the alarm line 25.
  • a dirt trap 29 and a shut-off device 31 are also arranged in the alarm line 25.
  • the alarm line 25 is connected to a mechanically operated alarm device 105.
  • the alarm valve 3 has a closing body 9, which can be moved back and forth between a blocking position and a release position. If no or very little water flows through the alarm valve, the closing body 9 is in the blocking position. If a pressure difference arises between the fluid inlet 5 and the fluid outlet 7 due to the triggering of a sprinkler, the closing body 9 moves into the release position.
  • the area of the alarm valve 3 upstream of the closing body 9 is fluidly connected via a compensating line 10 to the area which is connected downstream of the closing body 9.
  • the compensation line 10 comprises two shut-off valves 41a, 41b, two pressure gauges 43a, 43b and a check valve 45. This allows small quantities to flow between the fluid inlet 5 and the fluid outlet 7 without the closing body being moved into the release position.
  • the pressure sensor 11 and the alarm delay device 15 of the alarm valve station 1 are designed as a structural unit.
  • the pressure sensor 11 and the alarm delay device 15 of the alarm valve station 1 are not designed as a structural unit, but rather separately from one another and connected to one another in a signal-conducting manner.
  • the pressure sensor 11 and the alarm delay device 15 are each independent and structurally separate components. Otherwise, the structure of the fire extinguishing system 200 corresponds to that of the fire extinguishing system 200 Fig. 1 .
  • the fire alarm and / or extinguishing control center 101 and the alarm delay device 15 are designed as a structural unit.
  • the pressure sensor 11 and the fire alarm and / or extinguishing control center 101 are connected to one another in a signal-conducting manner via the alarm delay device 15.
  • the pressure sensor 11 and the alarm delay device 15, which according to Figure 3 is integrated in the fire alarm and / or extinguishing control center 101, is thus formed separately from one another and represents structurally separate components. Otherwise, the structure of the fire extinguishing system 200 corresponds to that of the fire extinguishing system 200 Fig. 1 .
  • the fire alarm and / or extinguishing control center 101 in which the alarm delay device 15 is integrated, is connected in a signal-conducting manner to the remote control device 107, the fire alarm and / or extinguishing control center 101 and the remote control device 107 being designed to exchange data with one another bidirectionally .
  • the structure of the fire extinguishing system 200 corresponds to that of the fire extinguishing system 200 Fig. 3 . Since the remote control device 107 is set up to electronically initiate a — optionally also permanent — delay on the alarm delay device 15, the shut-off device shown could be dispensed with.
  • the alarm delay device 15 has a plurality of setting means 19 which can be actuated to set the delay period.
  • the setting means 19 comprise a rotary switch 21 which is designed as a rotary controller using a potentiometer.
  • the setting means 19 further comprise further actuating elements, namely two push buttons 23a, 23b.
  • the push buttons 23a, 23b are set up to prematurely cancel an ongoing delay in the forwarding of an electrical alarm signal before the expiry of the delay period and to manually initiate an ongoing delay in the forwarding of an electrical alarm signal.
  • the setting means 19 are part of a control device 17 of the alarm delay device 15.
  • the alarm delay device 15 further comprises a display 24, which is designed to optically display setting parameters, such as the delay time, and status information.
  • the alarm delay device 15 further comprises a communication module 18, which is designed to receive and send data.
  • the communication module 18 comprises a transmitter unit 20 and a receiver unit 22 and is set up to exchange data bidirectionally with the remote control device 107 and the fire alarm and / or extinguishing control center 101.
  • the remote control device 107 is designed as a portable mobile radio device and is set up to bidirectionally exchange data with the alarm delay device 15 and the fire alarm and / or extinguishing control center 101.

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Description

Die vorliegende Erfindung betrifft eine Alarmventilstation für ein Brandalarmsystem, mit einem Alarmventil, insbesondere Nassalarmventil, mit einem Löschfluideinlass und einem Löschfluidauslass, wobei das Alarmventil dazu eingerichtet ist, den Löschfluidfluss zwischen dem Löschfluideinlass und dem Löschfluidauslass selektiv freizugeben oder zu sperren, einem Drucksensor, welcher fluidleitend mit dem Alarmventil verbunden und dazu eingerichtet ist, eine Druckänderung zu detektieren und in ein elektrisches Alarmsignal zu wandeln, und einer Alarmverzögerungseinrichtung zum Verzögern des Alarmsignals.The present invention relates to an alarm valve station for a fire alarm system, with an alarm valve, in particular a wet alarm valve, with an extinguishing fluid inlet and an extinguishing fluid outlet, the alarm valve being set up to selectively enable or block the extinguishing fluid flow between the extinguishing fluid inlet and the extinguishing fluid outlet, a pressure sensor which is fluid-conducting is connected to the alarm valve and is set up to detect a change in pressure and convert it into an electrical alarm signal, and an alarm delay device for delaying the alarm signal.

Die Erfindung betrifft ferner ein Brandalarmsystem mit einer solchen Alarmventilstation sowie ein Feuerlöschsystem.The invention further relates to a fire alarm system with such an alarm valve station and a fire extinguishing system.

Der Löschfluideinlass des Alarmventils derartiger Alarmventilstationen ist üblicherweise fluidleitend mit einer Löschfluidversorgung verbunden. Der Löschfluidauslass des Alarmventils derartiger Alarmventilstationen ist üblicherweise fluidleitend mit einer Sprinkleranordnung verbunden. Durch Auslösen eines oder mehrerer der verbundenen Sprinkler entsteht ein Löschfluidfluss, der mittels des Alarmventils (passiv) freigegeben und somit auch detektiert werden kann, sofern das Alarmventil, was bevorzugt ist, einen oder mehrere Sensoren zur Zustandserfassung beispielsweise des Schließzustandes des Ventils (siehe zum Beispiel JP H08 117357 A ), des Drucks im Alarmkanal (Ventil) usw. aufweist.The extinguishing fluid inlet of the alarm valve of such alarm valve stations is usually fluidly connected to an extinguishing fluid supply. The extinguishing fluid outlet of the alarm valve of such alarm valve stations is usually fluidly connected to a sprinkler arrangement. Triggering one or more of the connected sprinklers creates a flow of extinguishing fluid that can be (passively) released by the alarm valve and thus also detected, provided that the alarm valve, which is preferred, has one or more sensors for status detection, for example of the closed state of the valve (see for example JP H08 117357 A ), the pressure in the alarm channel (valve), etc.

Bei dem Durchströmen durch das Alarmventil kommt es zu einer Druckänderung innerhalb des Alarmventils und in der fluidleitend mit dem Alarmventil verbundenen Fluidleitung und/oder einer abzweigenden Alarmleitung. Bei bekannten Alarmventilstationen wird diese Druckänderung mittels eines Drucksensors, welcher fluidleitend mit dem Alarmventil verbunden ist, detektiert und in ein elektrisches Alarmsignal gewandelt.When flowing through the alarm valve, there is a pressure change within the alarm valve and in the fluid line fluidly connected to the alarm valve and / or a branching alarm line. In known alarm valve stations, this pressure change is detected by means of a pressure sensor, which is connected to the alarm valve in a fluid-conducting manner, and converted into an electrical alarm signal.

Eine Druckänderung kann jedoch nicht nur im Falle der Auslösung eines Sprinklers auftreten. In der Praxis hat sich gezeigt, dass auch die Löschfluidversorgung Druckschwankungen unterliegt, beispielsweise durch sich ändernde Wasserversorgungsdrücke oder Druckschläge innerhalb eines Wasserversorgungsnetzes. Derartige Druckschwankungen der Löschfluidversorgung können demnach zur Erzeugung eines kurzzeitigen Wasserflusses durch das Alarmventil und damit zur Erzeugung eines elektrischen (Fehl-)Alarmsignals durch den Drucksensor führen.However, a change in pressure cannot only occur if a sprinkler is triggered. It has been shown in practice that the extinguishing fluid supply is also subject to pressure fluctuations, for example due to changing water supply pressures or pressure surges within a water supply network. Such pressure fluctuations in the extinguishing fluid supply can accordingly lead to the generation of a brief water flow through the alarm valve and thus to the generation of an electrical (false) alarm signal by the pressure sensor.

Um einen derartigen Fehlalarm zu vermeiden ist man dazu übergegangen, den Drucksensoren hydraulische Verzögerungsbehälter vorzuschalten. Im Falle eines Druckanstiegs wird zuerst der hydraulische Verzögerungsbehälter mit Löschfluid aufgefüllt, bevor der Drucksensor eine Druckänderung detektieren kann. Abhängig von der Ausgestaltung des hydraulischen Verzögerungsbehälters kann der Füllvorgang bis zu einigen Minuten in Anspruch nehmen. Bei Druckschwankungen der Löschfluidversorgung wird demnach zuerst die Befüllung des Verzögerungsbehälters initiiert, bevor der Drucksensor eine Druckänderung detektieren und in ein elektrisches Alarmsignal wandeln kann. Die Druckschwankungen einer Löschfluidversorgung dauern jedoch regelmäßig nur wenige Sekunden an, so dass es nur zu einer geringfügigen Befüllung des Verzögerungsbehälters kommt und der Drucksensor somit keine Druckänderung detektiert. Es kommt somit nicht zur Erzeugung eines elektrischen Alarmsignals, so dass ein Fehlalarm durch den hydraulischen Verzögerungsbehälter verhindert wird.In order to avoid such a false alarm, a move has been made to connect hydraulic delay tanks to the pressure sensors. In the event of a pressure rise, the hydraulic delay tank is first filled with extinguishing fluid before the pressure sensor can detect a change in pressure. Depending on the design of the hydraulic delay tank, the filling process can take up to a few minutes. In the event of pressure fluctuations in the extinguishing fluid supply, the filling of the delay container is therefore initiated before the pressure sensor can detect a pressure change and convert it into an electrical alarm signal. However, the pressure fluctuations of an extinguishing fluid supply generally only last for a few seconds, so that the delay tank is only slightly filled and the pressure sensor therefore does not detect any change in pressure. An electrical alarm signal is therefore not generated, so that a false alarm is prevented by the hydraulic delay tank.

Der Einsatz von hydraulischen Verzögerungsbehältern ist jedoch mit einigen Nachteilen verbunden. So wird beispielsweise die Verzögerungsdauer von der Behältergröße und den Druckverhältnissen in der Wasserversorgung vorgegeben und kann nicht ohne Weiteres nachträglich geändert werden, ohne dass der Verzögerungsbehälter ausgetauscht wird. Ferner ist der Verzögerungsbehälter ein sicherheitsrelevantes hydraulisches Bauteil und bedingt hierdurch hohe Fertigungs- und Wartungskosten. Außerdem nimmt ein hydraulischer Verzögerungsbehälter einen großen Bauraum der Alarmventilstation ein, was die Anwendbarkeit speziell bei beengten Raumverhältnissen einschränkt.However, the use of hydraulic delay tanks has some disadvantages. For example, the delay time is determined by the tank size and the pressure conditions in the water supply and cannot be changed easily without changing the delay tank. Furthermore, the delay container is a safety-relevant hydraulic component and, as a result, involves high production and maintenance costs. In addition, a hydraulic delay tank takes up a large amount of space Alarm valve station, which limits the applicability especially in confined spaces.

Und schließlich erfordern hydraulische Verzögerungsbehälter eine solche Anordnung der daran angeschlossenen Leitungen, dass das Löschfluid nach einer Betätigung wieder selbsttätig aus dem Verzögerungsbehälter, dem Drucksensor und der Alarmleitung herausfließt, was die konstruktiven Möglichkeiten der Umsetzung einschränkt.And finally, hydraulic delay tanks require such an arrangement of the lines connected to them that the extinguishing fluid automatically flows out of the delay tank, the pressure sensor and the alarm line after actuation, which limits the design options for implementation.

Aufgabe der vorliegenden Erfindung ist es folglich eine Lösung bereitzustellen, mit welcher die Alarmverzögerung auf einfachere, sowie vorzugsweise platzsparende Art und Weise sowie unter geringeren Herstellungs- und Wartungskosten umsetzbar ist und bei der weiter vorzugsweise die Verzögerungszeit besser an den gewünschten Wert angepasst werden kann .It is therefore an object of the present invention to provide a solution with which the alarm delay can be implemented in a simpler and preferably space-saving manner and with lower production and maintenance costs, and in which the delay time can preferably be better adapted to the desired value.

Die der Erfindung zugrundeliegende Aufgabe wird gelöst durch eine Alarmventilstation der eingangs genannten Art, wobei die Alarmverzögerungseinrichtung als elektrische Alarmverzögerungsrichtung ausgebildet und signalleitend mit dem Drucksensor verbunden ist.The object on which the invention is based is achieved by an alarm valve station of the type mentioned at the outset, the alarm delay device being designed as an electrical alarm delay direction and being connected to the pressure sensor in a signal-conducting manner.

Die Erfindung macht sich die Erkenntnis zu Nutze, dass anstatt einer hydraulischen Alarmverzögerung mittels eines vorgeschalteten Verzögerungsbehälters die Alarmverzögerung durch eine elektrische Alarmverzögerungseinrichtung erreicht werden kann, welche dem Drucksensor nachgeschaltet ist. Die elektrische Verzögerungseinrichtung nutzt die Wandlung der erfassten Druckschwankung in das elektrische Alarmsignal aus, welche durch den Drucksensor ausgeführt wird. Eine elektrische Verzögerungseinrichtung ist universell einsetzbar, da ihre Eigenschaften, wie insbesondere die Verzögerungsdauer, nicht von der strukturellen Ausbildung der Alarmverzögerungseinrichtung abhängen, wie es bei einem hydraulischen Verzögerungsbehälter der Fall wäre. Eine Alarmventilstation mit einer elektrischen Alarmverzögerungseinrichtung bedarf zudem eines geringeren Herstellungs- und Wartungsaufwandes.The invention makes use of the knowledge that instead of a hydraulic alarm delay using an upstream delay container, the alarm delay can be achieved by an electrical alarm delay device which is connected downstream of the pressure sensor. The electrical delay device uses the conversion of the detected pressure fluctuation into the electrical alarm signal, which is carried out by the pressure sensor. An electrical delay device can be used universally, since its properties, such as in particular the delay time, do not depend on the structural design of the alarm delay device, as would be the case with a hydraulic delay tank. An alarm valve station with an electrical alarm delay device also requires less production and maintenance.

Das Alarmventil der erfindungsgemäßen Alarmventilstation weist vorzugsweise einen Schließkörper auf, welcher passiv zwischen einer Sperrstellung und einer Freigabestellung hin- und her bewegbar ist. Der Löschfluideinlass des Alarmventils ist vorzugsweise dazu eingerichtet, fluidleitend mit einer Löschfluidversorgung verbunden zu werden. Der Löschfluidauslass des Alarmventils ist vorzugsweise dazu eingerichtet, fluidleitend mit einer Sprinkleranordnung verbunden zu werden. Wenn sich der Schließkörper in der Sperrstellung befindet, ist der Löschfluidfluss zwischen dem Löschfluideinlass und dem Löschfluidauslass des Alarmventils gesperrt. Wenn sich der Schließkörper in der Freigabestellung befindet, ist der Löschfluidfluss zwischen dem Löschfluideinlass und dem Löschfluidauslass des Alarmventils freigegeben. Der Schließkörper wird bei erfindungsgemäßen Nassalarmventilen passiv geöffnet, wenn der Druck auf der Seite der Fluideintrittskammer um einen vorbestimmten Betrag höher ist als der Druck auf der Seite der Fluidaustrittskammer.The alarm valve of the alarm valve station according to the invention preferably has a closing body, which can be moved passively back and forth between a blocking position and a release position. The extinguishing fluid inlet of the alarm valve is preferably set up to be connected in a fluid-conducting manner to an extinguishing fluid supply. The extinguishing fluid outlet of the alarm valve is preferably set up to to be fluidly connected to a sprinkler arrangement. When the closing body is in the blocking position, the extinguishing fluid flow between the extinguishing fluid inlet and the extinguishing fluid outlet of the alarm valve is blocked. When the closing body is in the release position, the extinguishing fluid flow between the extinguishing fluid inlet and the extinguishing fluid outlet of the alarm valve is released. In the case of wet alarm valves according to the invention, the closing body is opened passively when the pressure on the fluid inlet chamber side is higher than the pressure on the fluid outlet chamber side.

In einer bevorzugten Ausführungsform ist die Alarmverzögerungseinrichtung dazu eingerichtet, die Weiterleitung eines empfangenen elektrischen Alarmsignals um eine Verzögerungsdauer zu verzögern. Die Verzögerung der Weiterleitung eines empfangenen elektrischen Alarmsignals erfolgt vorzugsweise durch das Zurückhalten des elektrischen Alarmsignals für die Verzögerungsdauer. Man kann signaltechnisch davon sprechen, dass das in der Alarmverzögerungseinrichtung eingehende Alarmsignal ein Primärsignal ist, während das verzögerte, die Alarmverzögerungseinrichtung verlassende Signal ein Sekundärsignal ist. Alternativ erfolgt die Verzögerung der Weiterleitung des elektrischen Alarmsignals durch ein Verwerfen des empfangenen primären elektrischen Alarmsignals und, nach Ablauf der Verzögerungsdauer, ein Generieren eines neuen sekundären elektrischen Alarmsignals. Vorzugsweise ist die Verzögerungsdauer einstellbar. Dadurch, dass die Verzögerungsdauer einstellbar ist, kann die Alarmventilstation an das Brandalarmsystem oder das Feuerlöschsystem, in welchem die Alarmventilstation verwendet wird, angepasst werden.In a preferred embodiment, the alarm delay device is set up to delay the forwarding of a received electrical alarm signal by a delay period. The forwarding of a received electrical alarm signal is preferably delayed by the electrical alarm signal being held back for the delay period. In terms of signal technology, one can speak of the fact that the alarm signal arriving in the alarm delay device is a primary signal, while the delayed signal leaving the alarm delay device is a secondary signal. Alternatively, the forwarding of the electrical alarm signal is delayed by rejecting the received primary electrical alarm signal and, after the delay period has elapsed, generating a new secondary electrical alarm signal. The delay period is preferably adjustable. Because the delay period is adjustable, the alarm valve station can be adapted to the fire alarm system or the fire extinguishing system in which the alarm valve station is used.

Die erfindungsgemäße Alarmventilstation wird ferner dadurch vorteilhaft weitergebildet, dass die Alarmverzögerungseinrichtung ein Einstellmittel aufweist, welches zum Einstellen der Verzögerungsdauer betätigbar ist. Das Einstellmittel ist vorzugsweise dazu ausgebildet, manuell betätigt zu werden. Auf diese Weise können z.B. Service- oder Wartungsmitarbeiter die Verzögerungsdauer der Alarmverzögerungseinrichtung manuell vor Ort an der Alarmventilstation einstellen. Alternativ oder zusätzlich ist das Einstellmittel dazu ausgebildet, durch Einstellsignale betätigt zu werden.The alarm valve station according to the invention is further advantageously developed in that the alarm delay device has an adjusting means which can be actuated to set the delay period. The setting means is preferably designed to be operated manually. In this way e.g. Service or maintenance staff manually set the delay time of the alarm delay device on site at the alarm valve station. Alternatively or additionally, the setting means is designed to be actuated by setting signals.

In einer weiteren bevorzugten Ausführungsform der erfindungsgemäßen Alarmventilstation weist das Einstellmittel einen oder mehrere analoge oder digitale Schalter auf. Vorzugsweise umfasst das Einstellmittel einen oder mehrere Kippschalter, einen oder mehrere Drehschalter und/oder einen oder mehrere Druckknöpfe.In a further preferred embodiment of the alarm valve station according to the invention, the setting means has one or more analog or digital switches. The setting means preferably comprises one or more toggle switches, one or more rotary switches and / or one or more push buttons.

Vorzugsweise umfasst das Einstellmittel einen Drehregler, ein Potentiometer und/oder einen Jumper.The setting means preferably comprises a rotary controller, a potentiometer and / or a jumper.

In einer weiteren bevorzugten Ausführungsform der erfindungsgemäßen Alarmventilstation weist die Alarmverzögerungseinrichtung ein Kommunikationsmodul auf, welches zum Empfangen und/oder Senden von Daten ausgebildet ist. Vorzugsweise ist das Kommunikationsmodul mit dem Einstellmittel signalleitend verbunden. Das Kommunikationsmodul ist vorzugsweise zum Empfang von Einstellparametern, wie beispielsweise der Verzögerungsdauer, ausgebildet. Ferner ist das Kommunikationsmodul vorzugsweise dazu eingerichtet, um mit einer Fernsteuereinrichtung und/oder einer Brandmelder- und/oder Löschsteuer-Zentrale zu kommunizieren.In a further preferred embodiment of the alarm valve station according to the invention, the alarm delay device has a communication module which is designed to receive and / or send data. The communication module is preferably connected to the setting means in a signal-conducting manner. The communication module is preferably designed to receive setting parameters, such as the delay period. Furthermore, the communication module is preferably set up to communicate with a remote control device and / or a fire alarm and / or extinguishing control center.

Vorzugsweise ist das Kommunikationsmodul zum Empfang von Steuerungssignalen ausgebildet. Ferner ist ein Kommunikationsmodul bevorzugt, welches zum Senden von Zustandsinformationen der Alarmverzögerungseinrichtung ausgebildet ist. In einer weiteren bevorzugten Ausführungsform der erfindungsgemäßen Alarmventilstation weist das Kommunikationsmodul mehrere Kommunikationsschnittstellen auf. Mittels der Kommunikationsschnittstelle(n) ist ein gleichzeitiger Datenaustausch mit mehreren Geräten realisierbar.The communication module is preferably designed to receive control signals. Furthermore, a communication module is preferred which is designed to send status information of the alarm delay device. In a further preferred embodiment of the alarm valve station according to the invention, the communication module has a plurality of communication interfaces. Using the communication interface (s), data can be exchanged simultaneously with several devices.

Die erfindungsgemäße Alarmventilstation wird ferner dadurch vorteilhaft weitergebildet, dass das Kommunikationsmodul eine Sendeeinheit und eine Empfängereinheit aufweist und vorzugsweise dazu eingerichtet ist, bidirektional Daten mit einer Fernsteuereinrichtung auszutauschen. Vorzugsweise erfolgt der Datenaustausch kabellos. Alternativ oder zusätzlich erfolgt der Datenaustausch kabelgebunden.The alarm valve station according to the invention is further advantageously developed in that the communication module has a transmitter unit and a receiver unit and is preferably set up to exchange data bidirectionally with a remote control device. The data exchange is preferably wireless. Alternatively or additionally, the data exchange is wired.

In einer bevorzugten Ausführungsform der erfindungsgemäßen Alarmventilstation ist die Alarmverzögerungseinrichtung dazu eingerichtet, die Weiterleitung des empfangenen elektrischen Alarmsignals dauerhaft zu verhindern und/oder ein empfangenes elektrisches Alarmsignal zu verwerfen. Das dauerhafte Verhindern der Weiterleitung eines empfangenen elektrischen Alarmsignals wird im Sinne der Erfindung auch als unendliche Verzögerung der Weiterleitung des Alarmsignals verstanden werden. Der Betriebsmodus des dauerhaften Verhinderns der Weiterleitung eines empfangenen elektrischen Alarmsignals und/oder das Verwerfen eines empfangenen elektrischen Alarmsignals findet insbesondere bei der Inbetriebnahme oder Wartung einer Alarmventilstation Anwendung. Hierdurch kann sichergestellt werden, dass bei der Inbetriebnahme oder der Wartung der Alarmventilstation nicht unbeabsichtigt ein Alarmsignal weitergeleitet wird. Bei bekannten Alarmventilstationen, welche einen hydraulischen Verzögerungsbehälter zur Verzögerung der Weiterleitung des Alarmsignals verwenden, wird das unbeabsichtigte Weiterleiten eines Alarmsignals während der Inbetriebnahme oder der Wartung der Alarmventilstation mittels eines Absperrorgans verhindert, welcher den Fluidfluss zu dem Verzögerungsbehälter oder zum Drucksensor sperrt. Eine elektrische Alarmverzögerungseinrichtung, welche dazu eingerichtet ist, die Weiterleitung eines empfangenen elektrischen Alarmsignals dauerhaft zu verhindern oder ein empfangenes elektrisches Alarmsignal zu verwerfen ist somit in der Lage, die Funktion des Absperrorgans durch elektrische Signalverarbeitung zu ersetzen, so dass das dort dargestellte Absperrorgan optional ist.In a preferred embodiment of the alarm valve station according to the invention, the alarm delay device is set up to permanently prevent the forwarding of the received electrical alarm signal and / or to reject a received electrical alarm signal. The permanent prevention of the transmission of a received electrical alarm signal will also be understood in the sense of the invention as an infinite delay in the transmission of the alarm signal. The operating mode of permanently preventing the transmission of a received electrical alarm signal and / or rejecting a received electrical alarm signal is used in particular when commissioning or maintaining an alarm valve station. This can ensure that at Commissioning or maintenance of the alarm valve station does not inadvertently forward an alarm signal. In known alarm valve stations, which use a hydraulic delay tank to delay the transmission of the alarm signal, the unintentional transmission of an alarm signal during commissioning or maintenance of the alarm valve station is prevented by means of a shut-off device which blocks the flow of fluid to the delay tank or to the pressure sensor. An electrical alarm delay device, which is set up to permanently prevent the transmission of a received electrical alarm signal or to reject a received electrical alarm signal, is thus able to replace the function of the shut-off device by electrical signal processing, so that the shut-off device shown there is optional.

In einer besonders bevorzugten Ausführungsform der erfindungsgemäßen Alarmventilstation ist die Alarmverzögerungseinrichtung dazu eingerichtet, eine andauernde Verzögerung der Weiterleitung eines elektrischen Alarmsignals vor Ablauf der Verzögerungsdauer aufzuheben. Mit anderen Worten ist die Alarmverzögerungseinrichtung vorzugsweise dazu eingerichtet, einen bereits laufenden Verzögerungsvorgang bereits vor dem Ende der Verzögerungsdauer abzubrechen. Insbesondere weist das Einstellmittel ein Betätigungselement, vorzugsweise in Form eines Druckknopfes, auf, welches dazu eingerichtet ist, die andauernde Verzögerung der Weiterleitung eines elektrischen Alarmsignals vorzeitig aufzuheben.In a particularly preferred embodiment of the alarm valve station according to the invention, the alarm delay device is set up to cancel an ongoing delay in the forwarding of an electrical alarm signal before the delay period has expired. In other words, the alarm delay device is preferably set up to cancel an already running delay process before the end of the delay period. In particular, the setting means has an actuating element, preferably in the form of a push button, which is set up to prematurely cancel the ongoing delay in forwarding an electrical alarm signal.

Vorzugsweise weist das Einstellmittel ein Betätigungselement, insbesondere in Form eines Druckknopfes auf, welches dazu eingerichtet ist, die Verzögerung der Weiterleitung eines elektrischen Alarmsignals manuell zu initiieren. Insbesondere ist bzw. sind das Einstellmittel und/oder das Kommunikationsmodul in einer Steuerungseinrichtung der Alarmverzögerungseinrichtung zusammengefasst.The setting means preferably has an actuating element, in particular in the form of a push button, which is set up to initiate the delay in forwarding an electrical alarm signal manually. In particular, the setting means and / or the communication module is or are combined in a control device of the alarm delay device.

In einer vorteilhaften Weiterbildung der erfindungsgemäßen Alarmventilstation sind der Drucksensor und die Alarmverzögerungseinrichtung separat voneinander ausgebildet und vorzugsweise signalleitend miteinander verbunden. Der Drucksensor und die Alarmverzögerungseinrichtung sind vorzugsweise jeweils eigenständige und strukturell voneinander getrennte Bauteile. Da der Drucksensor und die Alarmverzögerungseinrichtung bei einem Defekt unabhängig voneinander ausgetauscht werden können, ist somit der Wartungsaufwand (und somit die anfallenden Kosten) bei einem Funktionsausfall des Drucksensors oder der Alarmverzögerungseinrichtung erheblich verringert.In an advantageous development of the alarm valve station according to the invention, the pressure sensor and the alarm delay device are formed separately from one another and are preferably connected to one another in a signal-conducting manner. The pressure sensor and the alarm delay device are each preferably independent and structurally separate components. Since the pressure sensor and the alarm delay device can be replaced independently of one another in the event of a defect, the maintenance outlay (and thus the costs incurred) in the event of a malfunction of the pressure sensor or the alarm delay device is considerably reduced.

In einer weiteren Ausführungsform der erfindungsgemäßen Alarmventilstation sind der Drucksensor und die Alarmverzögerungseinrichtung als strukturelle Einheit ausgebildet. Der Begriff Drucksensor wird erfindungsgemäß als Oberbegriff verstanden, der beispielsweise auch Druckschalter umfasst. Auf diese Weise ist aufgrund der geringeren Bauteilanzahl der Aufbau und die Inbetriebnahme der Alarmventilstation erheblich vereinfacht. Ferner wird das Risiko eines Funktionsausfalls verringert, da potentielle Fehlerquellen bei der Installation des Drucksensors und der Alarmverzögerungseinrichtung durch die Ausbildung des Drucksensors und der Alarmverzögerungseinrichtung als strukturelle Einheit vermieden werden.In a further embodiment of the alarm valve station according to the invention, the pressure sensor and the alarm delay device are designed as a structural unit. According to the invention, the term pressure sensor is understood as a generic term, which also includes pressure switches, for example. In this way, the construction and commissioning of the alarm valve station is considerably simplified due to the smaller number of components. Furthermore, the risk of a malfunction is reduced, since potential sources of error in the installation of the pressure sensor and the alarm delay device are avoided by designing the pressure sensor and the alarm delay device as a structural unit.

Eine weitere bevorzugte Ausführungsform der erfindungsgemäßen Alarmventilstation weist eine Alarmleitung auf, welche fluidleitend mit dem Alarmventil, dem Drucksensor und einer Entleerungseinrichtung verbunden ist, wobei die Entleerungseinrichtung dazu eingerichtet ist, die Alarmleitung und ggf. daran angeschlossene Bauteile selbsttätig zu entleeren, wenn das Alarmventil sich in Sperrstellung befindet.A further preferred embodiment of the alarm valve station according to the invention has an alarm line which is fluidly connected to the alarm valve, the pressure sensor and an emptying device, the emptying device being set up to automatically empty the alarm line and any components connected to it when the alarm valve is in Locked position.

Die Alarmleitung ist vorzugsweise als interner Alarmkanal und/oder als externe Leistung ausgebildet.The alarm line is preferably designed as an internal alarm channel and / or as an external power.

Eine weitere bevorzugte Ausführungsform sieht eine Fernsteuereinrichtung vor, welche signalleitend mit der Alarmverzögerungseinrichtung verbunden ist. Vorzugsweise ist die Fernsteuereinrichtung als stationärer oder tragbarer Computer oder Mobilfunkgerät ausgebildet. Die Fernsteuereinrichtung weist vorzugsweise eine Mensch-Maschine-Schnittstelle auf, wie beispielsweise ein Display, insbesondere einen Touchscreen, und/oder einen oder mehrere Druckknöpfe oder Tasten.Another preferred embodiment provides a remote control device which is connected in a signal-conducting manner to the alarm delay device. The remote control device is preferably designed as a stationary or portable computer or mobile radio device. The remote control device preferably has a human-machine interface, such as a display, in particular a touchscreen, and / or one or more push buttons or buttons.

Die der Erfindung zugrunde liegende Aufgabe wird ferner durch ein Brandalarmsystem mit einer Alarmventilstation gemäß einer der vorstehend beschriebenen Ausführungsformen und einer Brandmelder- und/oder Löschsteuer-Zentrale gelöst. Die Brandmelder- und/oder Löschsteuer-Zentrale des erfindungsgemäßen Brandalarmsystems ist vorzugsweise signalleitend mit der (sekundären Seite der) Alarmverzögerungseinrichtung verbunden. Hinsichtlich der Vorteile des erfindungsgemäßen Brandalarmsystems wird auf die Vorteile der erfindungsgemäßen Alarmventilstation verwiesen. Vorzugsweise ist die Brandmelder- und/oder Löschsteuer-Zentrale dazu eingerichtet, einer externen Stelle einen Brandalam zu melden. Beispielsweise handelt es sich bei der externen Stelle um Wachpersonal oder um eine Brandbekämpfungsstation, wie etwa die Feuerwehr.The object on which the invention is based is also achieved by a fire alarm system with an alarm valve station according to one of the embodiments described above and a fire alarm and / or extinguishing control center. The fire alarm and / or extinguishing control center of the fire alarm system according to the invention is preferably connected in a signal-conducting manner to the (secondary side of the) alarm delay device. With regard to the advantages of the fire alarm system according to the invention, reference is made to the advantages of the alarm valve station according to the invention. The fire alarm and / or extinguishing control center is preferably set up to report a fire alarm to an external body. For example, the external body is security personnel or a fire-fighting station, such as the fire brigade.

Die Brandmelder- und/oder Löschsteuer-Zentrale ist vorzugsweise dazu eingerichtet, eine elektrisch betriebene Alarmeinrichtung, wie eine Alarmhupe, zu steuern.The fire alarm and / or extinguishing control center is preferably set up to control an electrically operated alarm device, such as an alarm horn.

Vorzugsweise ist die Brandmelder- und/oder Löschsteuer-Zentrale dazu eingerichtet, eine mechanisch betriebene Alarmeinrichtung, wie eine hydraulische Alarmglocke, zu steuern.The fire alarm and / or extinguishing control center is preferably set up to control a mechanically operated alarm device, such as a hydraulic alarm bell.

In einer weiteren bevorzugten Ausführungsform des erfindungsgemäßen Brandalarmsystems ist das Kommunikationsmodul der Alarmventilstation dazu eingerichtet, uni- oder bidirektional Daten mit der Brandmelder- und/oder Löschsteuer-Zentrale auszutauschen.In a further preferred embodiment of the fire alarm system according to the invention, the communication module of the alarm valve station is set up to exchange data unidirectionally or bidirectionally with the fire alarm and / or extinguishing control center.

Das erfindungsgemäße Brandalarmsystem wird ferner dadurch vorteilhaft weitergebildet, dass die Brandmelder- und/oder Löschsteuer-Zentrale und die Alarmverzögerungseinrichtung als strukturelle Einheit ausgebildet sind. Auf diese Weise wird die Größe der Alarmventilstation minimiert. Durch das Integrieren der Alarmverzögerungseinrichtung in die Brandmelder- und/oder Löschsteuer-Zentrale wird ferner der notwendige Aufwand für die Inbetriebnahme des Brandalarmsystems verringert.The fire alarm system according to the invention is further advantageously developed in that the fire alarm and / or extinguishing control center and the alarm delay device are designed as a structural unit. This minimizes the size of the alarm valve station. The integration of the alarm delay device into the fire alarm and / or extinguishing control center also reduces the effort required for starting up the fire alarm system.

Das erfindungsgemäße Brandalarmsystem wird dadurch vorteilhaft weitergebildet, dass die Brandmelder- und/oder Löschsteuer-Zentrale signalleitend mit der Fernsteuereinrichtung verbunden ist. Durch die signalleitende Verbindung zwischen der Brandmelder- und/oder Löschsteuer-Zentrale und der Fernsteuereinrichtung bzw. der Alarmverzögerungseinrichtung wird der Grad der Einstellbarkeit des Brandalarmsystems und somit auch der Bedienungskomfort weiter erhöht.The fire alarm system according to the invention is advantageously further developed in that the fire alarm and / or extinguishing control center is connected to the remote control device in a signal-conducting manner. The signal-conducting connection between the fire alarm and / or extinguishing control center and the remote control device or the alarm delay device further increases the degree of adjustability of the fire alarm system and thus the ease of use.

Bevorzugt ist eine mechanisch betriebene Alarmeinrichtung, wie beispielsweise eine hydraulische Alarmglocke, fluidleitend mit der Alarmleitung verbunden.A mechanically operated alarm device, such as a hydraulic alarm bell, is preferably connected to the alarm line in a fluid-conducting manner.

Die der Erfindung zugrunde liegende Aufgabe wird ferner durch ein Feuerlöschsystem mit einer Alarmventilstation gemäß einer der vorstehend beschriebenen Ausführungsformen oder einem Brandalarmsystem gemäß einer der vorstehenden beschriebenen Ausführungsformen gelöst, wobei das erfindungsgemäße Feuerlöschsystem ferner eine Löschfluidversorgung und eine Sprinkleranordnung aufweist. Die Löschfluidversorgung ist fluidleitend mit dem Löschfluideinlass des Alarmventils verbunden. Die Sprinkleranordnung ist fluidleitend mit dem Löschfluidauslass des Alarmventils verbunden.The object on which the invention is based is further achieved by a fire extinguishing system with an alarm valve station according to one of the above-described embodiments or a fire alarm system according to one of the above-described embodiments, the fire extinguishing system according to the invention further comprising an extinguishing fluid supply and a sprinkler arrangement. The extinguishing fluid supply is fluid-conducting with the extinguishing fluid inlet of the Alarm valve connected. The sprinkler arrangement is fluidly connected to the extinguishing fluid outlet of the alarm valve.

Die Erfindung wird im Folgenden unter Bezugnahme auf die beigefügten Figuren anhand bevorzugter Ausführungsbeispiele näher beschrieben. Hierbei zeigen:

Fig. 1
ein Ausführungsbeispiel eines erfindungsgemäßen Feuerlöschsystem in einer schematischen Darstellung;
Fig. 2
ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Feuerlöschsystems in einer schematischen Darstellung;
Fig. 3
ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Feuerlöschsystems in einer schematischen Darstellung;
Fig. 4
ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Feuerlöschsystems in einer schematischen Darstellung; und
Fig. 5
eine Alarmverzögerungseinrichtung einer erfindungsgemäßen Alarmventilstation.
The invention is described in more detail below with reference to the attached figures using preferred exemplary embodiments. Here show:
Fig. 1
an embodiment of a fire extinguishing system according to the invention in a schematic representation;
Fig. 2
a further embodiment of a fire extinguishing system according to the invention in a schematic representation;
Fig. 3
a further embodiment of a fire extinguishing system according to the invention in a schematic representation;
Fig. 4
a further embodiment of a fire extinguishing system according to the invention in a schematic representation; and
Fig. 5
an alarm delay device of an alarm valve station according to the invention.

Gemäß Fig.1 weist das Feuerlöschsystem 200 ein Brandalarmsystem 100, eine Löschfluidversorgung 201 und eine Sprinkleranordnung 203 auf.According to Fig. 1 the fire extinguishing system 200 has a fire alarm system 100, an extinguishing fluid supply 201 and a sprinkler arrangement 203.

Das Brandalarmsystem 100 umfasst eine Alarmventilstation 1 und eine Brandmelder- und/oder Löschsteuer-Zentrale 101.The fire alarm system 100 comprises an alarm valve station 1 and a fire alarm and / or extinguishing control center 101.

Die Alarmventilstation 1 umfasst ein Alarmventil 3 mit einem Löschfluideinlass 5 und einem Löschfluidauslass 7, wobei das Alarmventil 3 dazu eingerichtet ist, den Löschfluidfluss zwischen dem Löschfluideinlass und dem Löschfluidauslass selektiv freizugeben oder zu sperren und ggf. zu detektieren. Die Alarmventilstation 1 umfasst ferner einen Drucksensor, welcher fluidleitend mit dem Alarmventil 3 verbunden und dazu eingerichtet ist, eine Druckänderung zu detektieren und in ein elektrisches, sogenanntes primäres, Alarmsignal 13 zu wandeln. Außerdem weist die Alarmventilstation 1 eine Alarmverzögerungseinrichtung 15 zum Verzögern des empfangenen primären Alarmsignals auf, so dass dieses zu einem sekundären Alarmsignal 13' wird. Die Alarmverzögerungseinrichtung 15 ist eingangsseitig signalleitend mit dem Drucksensor 11 verbunden und als elektrische Alarmverzögerungseinrichtung 15 ausgebildet.The alarm valve station 1 comprises an alarm valve 3 with an extinguishing fluid inlet 5 and an extinguishing fluid outlet 7, the alarm valve 3 being set up to selectively enable or disable and possibly detect the extinguishing fluid flow between the extinguishing fluid inlet and the extinguishing fluid outlet. The alarm valve station 1 further comprises a pressure sensor, which is connected in a fluid-conducting manner to the alarm valve 3 and is set up to detect a change in pressure and to convert it into an electrical, so-called primary, alarm signal 13. In addition, the alarm valve station 1 has an alarm delay device 15 for delaying the received primary alarm signal, so that it becomes a secondary alarm signal 13 '. The The alarm delay device 15 is connected on the input side in a signal-conducting manner to the pressure sensor 11 and is designed as an electrical alarm delay device 15.

Die Brandmelder-und/oder Löschsteuer-Zentrale 101 des Brandalarmsystems 100 ist signalleitend mit dem Ausgang der Verzögerungseinrichtung 15 der Alarmventilstation 1 und einer elektrisch betriebenen Alarmeinrichtung 103 verbunden.The fire alarm and / or extinguishing control center 101 of the fire alarm system 100 is connected in a signal-conducting manner to the output of the delay device 15 of the alarm valve station 1 and to an electrically operated alarm device 103.

Optional ist eine Fernsteuereinrichtung 107 vorgesehen, die signalleitend mit der Alarmverzögerungseinrichtung 15 verbunden und zu deren Steuerung eingerichtet ist.A remote control device 107 is optionally provided, which is connected in a signal-conducting manner to the alarm delay device 15 and is set up to control it.

Die Löschfluidversorgung 201 des Feuerlöschsystems 200 ist fluidleitend mit dem Löschfluideinlass 5 des Alarmventils 3 verbunden. Die Sprinkleranordnung 203 des Feuerlöschsystems 200 ist fluidleitend mit dem Löschfluidauslass 7 des Alarmventils 3 verbunden.The extinguishing fluid supply 201 of the fire extinguishing system 200 is fluidly connected to the extinguishing fluid inlet 5 of the alarm valve 3. The sprinkler arrangement 203 of the fire extinguishing system 200 is connected in a fluid-conducting manner to the extinguishing fluid outlet 7 of the alarm valve 3.

Die Alarmverzögerungseinrichtung 15 ist dazu eingerichtet, die Weiterleitung eines empfangenen elektrischen Alarmsignals 13 um eine Verzögerungsdauer zu verzögern. Ferner ist die Alarmverzögerungseinrichtung 15 dazu eingerichtet, die Weiterleitung eines empfangenen elektrischen Alarmsignals dauerhaft zu verhindern oder ein empfangenes elektrisches Alarmsignal ausgangsseitig zu verwerfen. Darüber hinaus ist die Alarmverzögerungseinrichtung 15 dazu eingerichtet, eine andauernde Verzögerung der Weiterleitung eines elektrischen Alarmsignals vorzeitig vor Ablauf der Verzögerungsdauer aufzuheben.The alarm delay device 15 is set up to delay the forwarding of a received electrical alarm signal 13 by a delay period. Furthermore, the alarm delay device 15 is set up to permanently prevent the forwarding of a received electrical alarm signal or to discard a received electrical alarm signal on the output side. In addition, the alarm delay device 15 is set up to prematurely cancel an ongoing delay in the forwarding of an electrical alarm signal before the delay period expires.

Die Alarmventilstation 1 umfasst ferner eine Alarmleitung 25, welche fluidleitend mit dem Alarmventil 3, dem Drucksensor 11 und einer Entleerungseinrichtung 27 verbunden ist, wobei die Entleerungseinrichtung 27 dazu eingerichtet ist, die Alarmleitung 25 selbsttätig zu entleeren. In der Alarmleitung 25 sind ferner ein Schmutzfänger 29 und ein Absperrorgan 31 angeordnet. Außerdem ist die Alarmleitung 25 mit einer mechanisch betriebenen Alarmeinrichtung 105 verbunden.The alarm valve station 1 further comprises an alarm line 25, which is connected in a fluid-conducting manner to the alarm valve 3, the pressure sensor 11 and an emptying device 27, the emptying device 27 being set up to automatically empty the alarm line 25. A dirt trap 29 and a shut-off device 31 are also arranged in the alarm line 25. In addition, the alarm line 25 is connected to a mechanically operated alarm device 105.

Das Alarmventil 3 weist einen Schließkörper 9 auf, welcher zwischen einer Sperrstellung und einer Freigabestellung hin und her bewegbar ist. Wenn kein oder nur sehr wenig Wasser das Alarmventil durchströmt, befindet sich der Schließkörper 9 in der Sperrstellung. Wenn durch das Auslösen eines Sprinklers eine Druckdifferenz zwischen dem Fluideinlass 5 und dem Fluidauslass 7 entsteht, bewegt sich der Schließkörper 9 in die Freigabestellung. Der dem Schließkörper 9 vorgeschaltete Bereich des Alarmventils 3 ist über eine Ausgleichsleitung 10 mit dem Bereich, welcher dem Schließkörper 9 nachgeschaltet ist, fluidleitend verbunden. Die Ausgleichsleitung 10 umfasst zwei Absperrventile 41a, 41b, zwei Manometer 43a, 43b sowie ein Rückschlagventil 45. Dadurch können kleine Mengen zwischen Fluideinlass 5 und Fluidauslass 7 fließen, ohne dass der Schließkörper in die Freigabestellung bewegt wird.The alarm valve 3 has a closing body 9, which can be moved back and forth between a blocking position and a release position. If no or very little water flows through the alarm valve, the closing body 9 is in the blocking position. If a pressure difference arises between the fluid inlet 5 and the fluid outlet 7 due to the triggering of a sprinkler, the closing body 9 moves into the release position. The area of the alarm valve 3 upstream of the closing body 9 is fluidly connected via a compensating line 10 to the area which is connected downstream of the closing body 9. The compensation line 10 comprises two shut-off valves 41a, 41b, two pressure gauges 43a, 43b and a check valve 45. This allows small quantities to flow between the fluid inlet 5 and the fluid outlet 7 without the closing body being moved into the release position.

Der Drucksensor 11 und die Alarmverzögerungseinrichtung 15 der Alarmventilstation 1 sind als strukturelle Einheit ausgebildet.The pressure sensor 11 and the alarm delay device 15 of the alarm valve station 1 are designed as a structural unit.

Gemäß Fig. 2 sind der Drucksensor 11 und die Alarmverzögerungseinrichtung 15 der Alarmventilstation 1 nicht als strukturelle Einheit, sondern separat voneinander ausgebildet und signalleitend miteinander verbunden. Der Drucksensor 11 und die Alarmverzögerungseinrichtung 15 sind jeweils eigenständig und strukturell voneinander getrennte Bauteile. Im Übrigen entspricht der Aufbau des Feuerlöschsystems 200 dem des Feuerlöschsystems 200 aus Fig. 1.According to Fig. 2 the pressure sensor 11 and the alarm delay device 15 of the alarm valve station 1 are not designed as a structural unit, but rather separately from one another and connected to one another in a signal-conducting manner. The pressure sensor 11 and the alarm delay device 15 are each independent and structurally separate components. Otherwise, the structure of the fire extinguishing system 200 corresponds to that of the fire extinguishing system 200 Fig. 1 .

Gemäß Fig. 3 sind die Brandmelder- und/oder Löschsteuer-Zentrale 101 und die Alarmverzögerungseinrichtung 15 als strukturelle Einheit ausgebildet. Der Drucksensor 11 und die Brandmelde-und/oder Löschsteuer-Zentrale 101 sind über die Alarmverzögerungseinrichtung 15 signalleitend miteinander verbunden. Der Drucksensor 11 und die Alarmverzögerungseinrichtung 15, welche gemäß Figur 3 in der Brandmelde- und/oder Löschsteuer-Zentrale 101 integriert ist, sind somit separat voneinander ausgebildet und stellen strukturell voneinander getrennte Bauteile dar. Im Übrigen entspricht der Aufbau des Feuerlöschsystems 200 dem des Feuerlöschsystems 200 aus Fig. 1.According to Fig. 3 the fire alarm and / or extinguishing control center 101 and the alarm delay device 15 are designed as a structural unit. The pressure sensor 11 and the fire alarm and / or extinguishing control center 101 are connected to one another in a signal-conducting manner via the alarm delay device 15. The pressure sensor 11 and the alarm delay device 15, which according to Figure 3 is integrated in the fire alarm and / or extinguishing control center 101, is thus formed separately from one another and represents structurally separate components. Otherwise, the structure of the fire extinguishing system 200 corresponds to that of the fire extinguishing system 200 Fig. 1 .

Gemäß Fig. 4 ist die Brandmelder- und/oder Löschsteuer-Zentrale 101, in welcher die Alarmverzögerungseinrichtung 15 integriert ist, signalleitend mit der Fernsteuereinrichtung 107 verbunden, wobei die Brandmelder- und/oder Löschsteuer-Zentrale 101 sowie die Fernsteuereinrichtung 107 dazu ausgebildet sind, bidirektional Daten miteinander auszutauschen. Im Übrigen entspricht der Aufbau des Feuerlöschsystems 200 dem des Feuerlöschsystems 200 aus Fig. 3. Da die Fernsteuereinrichtung 107 dazu eingerichtet ist, an der Alarmverzögerungseinrichtung 15 elektronisch eine - wahlweise auch permanente - Verzögerung zu initiieren, könnte auf das dargestellte Absperrorgan verzichtet werden.According to Fig. 4 the fire alarm and / or extinguishing control center 101, in which the alarm delay device 15 is integrated, is connected in a signal-conducting manner to the remote control device 107, the fire alarm and / or extinguishing control center 101 and the remote control device 107 being designed to exchange data with one another bidirectionally . Otherwise, the structure of the fire extinguishing system 200 corresponds to that of the fire extinguishing system 200 Fig. 3 . Since the remote control device 107 is set up to electronically initiate a — optionally also permanent — delay on the alarm delay device 15, the shut-off device shown could be dispensed with.

Gemäß Fig. 5 weist die Alarmverzögerungseinrichtung 15 mehrere Einstellmittel 19 auf, welche zum Einstellen der Verzögerungsdauer betätigbar sind. Die Einstellmittel 19 umfassen einen Drehschalter 21, welcher unter Verwendung eines Potentiometers als Drehregler ausgebildet ist. Die Einstellmittel 19 umfassen ferner weitere Betätigungselemente, nämlich zwei Druckknöpfe 23a, 23b. Die Druckknöpfe 23a, 23b sind dazu eingerichtet, eine andauernde Verzögerung der Weiterleitung eines elektrischen Alarmsignals vorzeitig vor Ablauf der Verzögerungsdauer aufzuheben und eine andauernde Verzögerung der Weiterleitung eines elektrischen Alarmsignals manuell zu initiieren. Die Einstellmittel 19 sind Teil einer Steuerungseinrichtung 17 der Alarmverzögerungseinrichtung 15. Die Alarmverzögerungseinrichtung 15 umfasst ferner eine Anzeige 24, welche dazu ausgebildet ist, Einstellparameter, wie die Verzögerungsdauer, und Zustandsinformationen optisch darzustellen.According to Fig. 5 the alarm delay device 15 has a plurality of setting means 19 which can be actuated to set the delay period. The setting means 19 comprise a rotary switch 21 which is designed as a rotary controller using a potentiometer. The setting means 19 further comprise further actuating elements, namely two push buttons 23a, 23b. The push buttons 23a, 23b are set up to prematurely cancel an ongoing delay in the forwarding of an electrical alarm signal before the expiry of the delay period and to manually initiate an ongoing delay in the forwarding of an electrical alarm signal. The setting means 19 are part of a control device 17 of the alarm delay device 15. The alarm delay device 15 further comprises a display 24, which is designed to optically display setting parameters, such as the delay time, and status information.

Die Alarmverzögerungseinrichtung 15 umfasst ferner ein Kommunikationsmodul 18, welches zum Empfangen und Senden von Daten ausgebildet ist. Das Kommunikationsmodul 18 umfasst eine Sendeeinheit 20 und eine Empfängereinheit 22 und ist dazu eingerichtet, bidirektional Daten mit der Fernsteuereinrichtung 107 sowie der Brandmelder-und/oder Löschsteuer-Zentrale 101 auszutauschen.The alarm delay device 15 further comprises a communication module 18, which is designed to receive and send data. The communication module 18 comprises a transmitter unit 20 and a receiver unit 22 and is set up to exchange data bidirectionally with the remote control device 107 and the fire alarm and / or extinguishing control center 101.

Die Fernsteuerungseinrichtung 107 ist als portables Mobilfunkgerät ausgebildet und dazu eingerichtet, bidirektional Daten mit der Alarmverzögerungseinrichtung 15 und der Brandmelder-und/oder Löschsteuer-Zentrale 101 auszutauschen.The remote control device 107 is designed as a portable mobile radio device and is set up to bidirectionally exchange data with the alarm delay device 15 and the fire alarm and / or extinguishing control center 101.

BezuaszeichenBezuaszeichen

11
AlarmventilstationAlarm valve station
33rd
AlarmventilAlarm valve
55
LöschfluideinlassExtinguishing fluid inlet
77
LöschfluidauslassExtinguishing fluid outlet
99
SchließkörperClosing body
1010th
AusgleichsleitungCompensation line
1111
DrucksensorPressure sensor
1313
elektrisches (primäres) Alarmsignalelectrical (primary) alarm signal
13'13 '
verzögertes elektrisches (sekundäres) AlarmsignalDelayed electrical (secondary) alarm signal
1515
AlarmverzögerungseinrichtungAlarm delay device
1717th
SteuerungseinrichtungControl device
1818th
KommunikationsmodulCommunication module
1919th
EinstellmittelAdjusting means
2020th
SendeeinheitTransmitter unit
2121
Schalterswitch
2222
EmpfängereinheitReceiver unit
23a, 23b23a, 23b
DruckknöpfeSnaps
2424th
Anzeigedisplay
2525th
AlarmleitungAlarm line
2727
EntleerungseinrichtungEmptying device
2929
SchmutzfängerMud flaps
3131
AbsperrorganShut-off device
41a, 41b41a, 41b
VentileValves
43a, 43b43a, 43b
Manometermanometer
4545
Rückschlagventilcheck valve
100100
BrandalarmsystemFire alarm system
101101
Brandmelder- und/oder Löschsteuer-ZentraleFire alarm and / or extinguishing control center
103103
elektrisch betriebene Alarmeinrichtungelectrically operated alarm device
105105
mechanisch betriebene Alarmeinrichtungmechanically operated alarm device
107107
FernsteuereinrichtungRemote control device
200200
FeuerlöschsystemFire extinguishing system
201201
LöschfluidversorgungExtinguishing fluid supply
203203
SprinkleranordnungSprinkler arrangement

Claims (15)

  1. An alarm valve station (1) for a fire alarm system (100), having
    an alarm valve (3), in particular a wet alarm valve, having an extinguishing fluid inlet (5) and an extinguishing fluid outlet (7), wherein the alarm valve (3) is configured to selectively release or block the extinguishing fluid flow between the extinguishing fluid inlet (5) and the extinguishing fluid outlet (7),
    a pressure sensor (11) which is in fluid communication with the alarm valve (3) and which is configured to detect a change in pressure and to convert this into an electrical alarm signal (13), and
    an alarm delay device (15) for delaying the alarm signal,
    characterized in that the alarm delay device (15) is an electrical alarm delay device (15) and is in signal-communication with the pressure sensor (11).
  2. The alarm valve station (1) as claimed in claim 1,
    characterized in that the alarm delay device (15) is configured to delay the forwarding of a received electrical alarm signal (13) by a delay duration.
  3. The alarm valve station (1) as claimed in claim 2,
    characterized in that the alarm delay device (15) comprises a setting means (19) which is operable to set the delay duration.
  4. The alarm valve station (1) as claimed in claim 3,
    characterized in that the setting means (19) comprises an analog or digital switch (21).
  5. The alarm valve station (1) as claimed in one of the preceding claims,
    characterized in that the alarm delay device (15) comprises a communication module (18) which is configured to do at least one of: receiving or transmitting data.
  6. The alarm valve station (1) as claimed in claim 5,
    characterized in that the communication module (18) comprises a transmitter unit (20) and a receiver unit (22) and is preferably configured to bidirectionally exchange data with a remote control device (107).
  7. The alarm valve station (1) as claimed in one of claims 2 to 6,
    characterized in that the alarm delay device (15) is configured to permanently prevent the forwarding of a received electrical alarm signal (13), or to discard a received electrical alarm signal (13).
  8. The alarm valve station (1) as claimed in one of claims 2 to 7,
    characterized in that the alarm delay device (15) is configured to cancel a persisting delay of the forwarding of an electrical alarm signal (13) prior to the delay duration elapsing.
  9. The alarm valve station (1) as claimed in one of the preceding claims,
    characterized in that the pressure sensor (11) and the alarm delay device (15) are separate from one another and are preferably in signal communication with one another.
  10. The alarm valve station (1) as claimed in one of claims 1 to 8,
    characterized in that the pressure sensor (11) and the alarm delay device (15) form a structural unit.
  11. The alarm valve station as claimed in one of the preceding claims,
    characterized by a remote control device (107) which is in signal-communication with the alarm delay device (15).
  12. A fire alarm system (100) having
    - an alarm valve station (1) according to one of the preceding claims, and
    - a fire detection and/or extinguishing control panel (101) which is preferably connected in signal-communication with the alarm delay device (15).
  13. The fire alarm system (100) as claimed in claim 12,
    characterized in that the fire detection and/or extinguishing control panel (101) and the alarm delay device (15) form a structural unit.
  14. The fire alarm system (100) as claimed in claim 12 or 13,
    characterized in that the fire detection and/or extinguishing control panel (101) is in signal-communication with the remote control device (107).
  15. A fire-extinguishing system (200) having
    - an alarm valve station (1) according to one of claims 1 to 10, or a fire alarm system (100) according to one of claims 11 to 14,
    - an extinguishing fluid supply (201) which is in fluid-communication with the extinguishing fluid inlet (5) of the alarm valve (3), and
    - a sprinkler arrangement (203) which is in fluid-communication with the extinguishing fluid outlet (7) of the alarm valve (3).
EP16801795.2A 2015-12-29 2016-11-28 Alarm valve station for a fire alarm system Active EP3400078B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015226776.8A DE102015226776A1 (en) 2015-12-29 2015-12-29 Alarm valve station for a fire alarm system
PCT/EP2016/079032 WO2017114615A1 (en) 2015-12-29 2016-11-28 Alarm valve station for a fire alarm system

Publications (2)

Publication Number Publication Date
EP3400078A1 EP3400078A1 (en) 2018-11-14
EP3400078B1 true EP3400078B1 (en) 2020-03-25

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Application Number Title Priority Date Filing Date
EP16801795.2A Active EP3400078B1 (en) 2015-12-29 2016-11-28 Alarm valve station for a fire alarm system

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US (2) US11369819B2 (en)
EP (1) EP3400078B1 (en)
KR (1) KR20180107119A (en)
CN (1) CN108472526A (en)
CA (1) CA3007221C (en)
DE (1) DE102015226776A1 (en)
WO (1) WO2017114615A1 (en)

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US11369819B2 (en) 2022-06-28
KR20180107119A (en) 2018-10-01
US20220323807A1 (en) 2022-10-13
EP3400078A1 (en) 2018-11-14
US20180361184A1 (en) 2018-12-20
CA3007221C (en) 2020-07-28
WO2017114615A1 (en) 2017-07-06
CN108472526A (en) 2018-08-31
DE102015226776A1 (en) 2017-06-29
CA3007221A1 (en) 2017-07-06

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