EP2119479B1 - Fire damping device - Google Patents

Fire damping device Download PDF

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Publication number
EP2119479B1
EP2119479B1 EP09003193.1A EP09003193A EP2119479B1 EP 2119479 B1 EP2119479 B1 EP 2119479B1 EP 09003193 A EP09003193 A EP 09003193A EP 2119479 B1 EP2119479 B1 EP 2119479B1
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EP
European Patent Office
Prior art keywords
housing
smoke
temperature sensor
sensor
housing section
Prior art date
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Not-in-force
Application number
EP09003193.1A
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German (de)
French (fr)
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EP2119479B2 (en
EP2119479A1 (en
Inventor
Eidmann Jürgen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Strulik GmbH
Original Assignee
Eidmann Juergen
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Application filed by Eidmann Juergen filed Critical Eidmann Juergen
Priority to CN2009101381279A priority Critical patent/CN101579559B/en
Publication of EP2119479A1 publication Critical patent/EP2119479A1/en
Publication of EP2119479B1 publication Critical patent/EP2119479B1/en
Application granted granted Critical
Publication of EP2119479B2 publication Critical patent/EP2119479B2/en
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    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C2/00Fire prevention or containment
    • A62C2/06Physical fire-barriers
    • A62C2/24Operating or controlling mechanisms
    • A62C2/246Operating or controlling mechanisms having non-mechanical actuators
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C2/00Fire prevention or containment
    • A62C2/06Physical fire-barriers
    • A62C2/24Operating or controlling mechanisms
    • A62C2/246Operating or controlling mechanisms having non-mechanical actuators
    • A62C2/247Operating or controlling mechanisms having non-mechanical actuators electric

Definitions

  • the invention relates to a Feuerschutzabsperrvorraum, in particular for ventilation ducts, with a shut-off, arranged inside the shut-off valve, a working on the shut-off valve and a detection device with at least one temperature sensor which generates a trigger signal for the damper drive, so that the butterfly valve with the closing device a release position in a shut-off position can be transferred.
  • Such Feuertikabsperrvorectomy is referred to in practice as a fire damper.
  • the arranged therein butterfly valve is rotatably mounted in the flap housing, pivotally and / or displaceable, wherein the z.
  • the closing device which may be designed as a flap drive, it is in particular an electric motor drive, for. B. a spring return motor, which is supplied with a suitable voltage and brings the butterfly valve with simultaneous tensioning of the return spring in the open position.
  • a spring return motor which is supplied with a suitable voltage and brings the butterfly valve with simultaneous tensioning of the return spring in the open position.
  • the power supply of the spring return motor is interrupted so that the shut-off device is transferred by means of the spring energy in the closed position or shut-off.
  • the fire protection device thus ensures that in case of fire, the butterfly valve is automatically closed, so that a passage of air or other gases and / or a passage of fire and smoke is prevented.
  • the closing device or the valve drive z. B. connected via at least one lever or linkage to the butterfly valve.
  • smoke detection devices for fire protection systems which have at least one optical smoke detector.
  • the smoke detector is integrated in the housing, which is usually placed on the outside of an air duct. In the air duct only protrudes a smoke pipe, which directs the smoke from the air duct in the event of fire in the area of the smoke detector.
  • the US 5,728,001 describes a Feuerschutzabsperrvorraum with a butterfly valve, wherein a temperature sensor protrudes into an air duct.
  • the invention has for its object to provide a Feuerschutzabsperrvorraum for a ventilation duct or ventilation ducts of the type described above, which is characterized by a high degree of security and reliability in a simple and compact structure.
  • the invention teaches in a generic Feuerschutzabsperrvorraum, especially for ventilation ducts, of the type described above, that the detection device is designed as a combined temperature and smoke detection device, in which both a temperature sensor and a smoke sensor is integrated.
  • the detection device preferably has a housing projecting into the housing or housing interior detector housing, in which both the temperature sensor and the smoke sensor are arranged.
  • the invention is based on the recognition that the reliability and safety of a fire protection shut-off device can be significantly improved if the shut-off function is triggered not only via a protruding into the housing interior temperature sensor, but if a smoke detector is integrated in addition to the detection device. Because while the temperature sensor only at sufficiently high temperatures of z. B. responds more than 70 ° C or 72 ° C, the smoke detector triggers the shut-off in case of fire, even if relatively low temperatures are present in the ventilation duct or the fire damper, but smoke penetrates into the ventilation duct. In the context of the invention, therefore, either exceeding the limit temperature within the ventilation duct, so that the temperature sensor triggers or the detection of smoke, so that the smoke detector responds.
  • a uniform detection device with a uniform detector housing which protrudes into the shut-off housing and in which both the temperature sensor and the smoke detector are arranged.
  • the detector housing arranged within the shut-off housing has a first opening, through which or out of which the temperature sensor protrudes.
  • the temperature sensor is arranged "protected" within the shut-off housing. Because the detector housing can in the range of the temperature sensor, for. B. in the region of the opening, through which protrudes the temperature sensor, a region surrounding the temperature sensor and partially open protective housing.
  • Such a protective housing can, for. B. be designed as a protective cage or the like. In this way, it is ensured that the temperature is reliably determined within the shut-off housing or the fire damper, but at the same time the temperature sensor is protected against mechanical stresses that may occur during assembly but also in the course of transport or storage of the detector ,
  • the detector housing can be used as a tubular, z. B. cylindrical housing may be formed.
  • the temperature sensor it is expedient for the temperature sensor to protrude from the detector housing (into the ventilation channel) through a front-side first opening.
  • the detector housing has a second opening as a smoke inlet opening, so that the smoke can reach the interior of the detector housing, in which the smoke detector is arranged.
  • This smoke inlet opening is formed by a grid-like or a perforated housing section.
  • this smoke inlet opening is positioned circumferentially.
  • the detector housing is not formed as a unitary tubular or cylindrical housing with over the entire length substantially constant diameter, but the detector housing has in such an alternative embodiment, a first tubular housing portion, which z. B. receives an evaluation and a subsequent to the first housing section second housing portion which receives the smoke sensor.
  • the second housing section is preferably adapted in its shape to the outer contour of the smoke sensor. In this way, commercial smoke sensors can be easily integrated to save space.
  • the second housing section is formed substantially cylindrically, wherein the (longitudinal) axis of this second cylindrical housing section is approximately orthogonal to the (longitudinal) axis of the cylindrical first housing section.
  • the height of the cylindrical second housing section then preferably corresponds approximately to the diameter of the first cylindrical housing section. In this way, a total detector housing is created, which is compact and at the same time takes up the necessary components to save space.
  • one or more smoke inlet openings may be arranged in the peripheral region or in the cylinder jacket region of the second cylindrical housing section.
  • the end faces of this cylindrical second housing portion are preferably formed closed.
  • the closing mechanism or flap drive is preferably designed in a manner known per se as an electromotive drive and / or as a spring drive. This may particularly preferably be a spring return motor.
  • the drive is preferably provided with a control device or connected to a control device. As soon as the detection device generates a trigger signal, the drive is controlled via the control device in such a way that the shut-off flap is transferred to the shut-off position.
  • an electromotive spring return motor brings this with appropriate power supply the shut-off device in the open position, with simultaneous tensioning arranged within the spring return motor return spring.
  • the shut-off device is moved by means of the spring energy in the closed position.
  • This "closed-circuit principle" also ensures that the butterfly valve is triggered even in the event of a short circuit or a power cut.
  • the detection device with an evaluation z. B. an evaluation is provided. Both the temperature sensor and the smoke sensor are connected to this transmitter.
  • the transmitter is in turn connected to the electric motor drive or to the control device for the electric motor drive, ie, the evaluation unit generates the trigger signal.
  • the evaluation generates a trigger signal for the damper drive or the control device when the temperature sensor generates a temperature signal and / or the smoke sensor generates a smoke signal.
  • the evaluation of these two signals is therefore preferably within the transmitter, which then generates a "uniform" trigger signal for the damper drive or the control device in terms of an "OR link” both when triggering only the temperature sensor and when triggering only the smoke sensor.
  • the evaluation electronics or evaluation unit can preferably be integrated into the detector housing. But it is also possible to provide the transmitter outside of the detector housing in a separate housing, which then z. B. is arranged outside the shut-off housing.
  • evaluation electronics on the one hand and control device for the motor on the other hand can also be combined, i. H. the evaluation can be integrated into the control device or vice versa.
  • the smoke sensor is preferably formed in a conventional manner as an optical sensor.
  • recourse can be had to known sensors operating on the optical principle by means of one or more diodes or diode detectors.
  • a Feuerschutzabsperrvorraum is shown for ventilation ducts or for a ventilation duct.
  • This Feuerschutzabspenvorectomy which is also referred to in practice as a fire damper, has in its basic structure a shut-off housing 1 and arranged in the shut-off housing 1 shut-off valve 2.
  • the shut-off housing 1 is formed in the embodiment as a cylindrical pipe socket, which is connectable to a tubular ventilation duct or is arranged between two ventilation channels.
  • the butterfly valve 2 is rotatably mounted within the shut-off housing 1.
  • a closing mechanism is provided in the embodiment as a damper drive 3, which operates via a linkage or a lever arrangement or a lever mechanism 4 on the butterfly valve.
  • the damper drive 3 is formed in the embodiment as an electric motor drive in the embodiment as a spring return motor.
  • This drive 3 is equipped with a control device 5 and, moreover, connected to a suitable power supply 6.
  • This power supply brings the spring return motor, the butterfly valve 2 in the Fig. 1 illustrated open position in which the passage through the housing interior is released. In the course of opening the flap 2, the return spring of the spring return motor 3 is stretched at the same time.
  • the power supply, z. B. interrupted by tripping in the event of fire, the return spring integrated in the spring return motor 3 closes the butterfly valve 2 and thus brings them into the shut-off position, not shown.
  • a projecting into the shut-off housing 1 detection device 7 is provided, which is connected to the damper drive 3 and its control device 5 and generates a trigger signal in case of alarm, so that the butterfly valve 2 is transferred with the damper drive 3 from the release position to the shut-off position, in which the passage through the housing 1 and consequently also closed by the ventilation ducts connected thereto.
  • the detection device 7 is now designed as a combined temperature and smoke detection device.
  • a temperature sensor 8 and a smoke sensor 9 are integrated in this detection device 7.
  • the detection device 7 has a z. B. tubular or cylindrical detection housing 10, which as it forms a combined smoke and temperature sensor, which projects into the interior of the shut-off housing 1.
  • first embodiment of this detection device 7 results, for example, from a comparative analysis of Fig. 2 . 3 and 4 , It is fastened via an end-side mounting flange 11 in a mounting opening 12 of the shut-off housing 1.
  • the detector housing 10 has an end opening 13 through which the temperature sensor 8 protrudes slightly. In this way it is ensured that, for example, a commercially available thermal sensor is arranged as a temperature sensor directly inside the shut-off housing, so that a reliable temperature detection succeeds.
  • the detector housing points 10 a smoke inlet opening 14.
  • the smoke inlet opening 14 is formed by a grid-like or a perforated housing section or is covered with such a grid-like or perforated housing section. In the exemplary embodiment, this smoke inlet opening 14 is arranged circumferentially. In Fig. 4 It can be seen that the smoke sensor itself is arranged directly under the smoke inlet opening 14 or the perforated housing area, in the vicinity of the housing end.
  • the Fig. 5 to 7 show a modified, preferred embodiment of a detection device according to the invention 7.
  • This embodiment differs from the embodiment according to Fig. 1 to 4 Among other things, by the shape of the detector housing 10.
  • the detector housing 10 has a first tubular or cylindrical housing portion 10a and has a subsequent to the first housing portion 10a second housing portion 10b.
  • This second housing section 10b receives the smoke sensor 9.
  • the second housing section 10b is adapted in its shape to the outer contour of the smoke sensor 9.
  • this second housing portion 10b is also cylindrical or substantially cylindrical, wherein the axis 16b of this second cylindrical housing portion 10b is arranged approximately orthogonal to the axis 16a of the first cylindrical housing portion 10a.
  • the height h of the second cylindrical housing portion 10b corresponds approximately to the diameter d of the first cylindrical housing portion 10a. This means that the height h (as shown) may also differ (slightly) from the thickness d, z. B. may be slightly larger, z. B. by up to 20%, preferably only up to 15%.
  • the smoke inlet openings 14 are arranged in the peripheral region or cylinder jacket region of the second housing section 10b. There are two smoke inlet openings 14 are provided. The end surfaces 17 of this second cylindrical housing portion 10b are closed. Furthermore, it can be seen that in the embodiment according to Fig.
  • the temperature sensor 8 does not protrude freely out of the detector housing 10, but that the detector housing 10 in the region of the temperature sensor 8 and consequently also in the region of the opening 13 has a protective housing 13a partially surrounding the temperature sensor and partially open.
  • This protective housing is formed in the embodiment as a protective cage 13a. It becomes clear that in this way a perfect temperature detection is possible, but that the temperature sensor 8 is protected against mechanical damage.
  • the temperature sensor 8 is in the region of the opening 13 at a z. B. attached in the opening arranged holding web. It will be appreciated that in this preferred embodiment, the temperature sensor 8 is not passed or past the smoke sensor, but is (fully) positioned in the region of the end guard cage 13a. It is then only necessary to pass the wiring for the temperature sensor 8 to the smoke sensor 9.
  • the holding ridge on which the temperature sensor is attached to the foot is (approximately) on the circumference of the second cylindrical housing portion 10b and thus outside the periphery of the smoke sensor 9.
  • a temperature sensor in a small design of the protective cage 13a is particularly useful.
  • Temperature sensor 8 on the one hand and smoke sensor 9 on the other hand are connected via guided inside the detector housing 10 connecting cable with a common evaluation or evaluation electronics 15, which in the Embodiment after Fig. 2 to 4 is arranged outside the shut-off housing 1.
  • This evaluation 15 is - as in Fig. 1 indicated - connected to the damper actuator 3 and its control device 5.
  • the transmitter 15 is designed so that a trigger signal is generated when the temperature sensor 8 or the smoke sensor 9 responds.
  • the sensor signals are consequently evaluated in the sense of a logical OR operation.
  • a logical AND connection would also be possible.
  • the logical OR operation is characterized by an increased level of trip safety, since the butterfly valve 2 is closed, for example, even when the temperatures are low and yet smoke is detected.
  • Sensitivity of the smoke sensor 9 and / or the temperature sensor 8 are adjustable.
  • the evaluation unit 15 is arranged within the detector housing 10. This is exemplary in the Fig. 5 to 7 shown.
  • the evaluation unit 15 is arranged in the first cylindrical housing portion 10a.
  • the two sensors 8, 9 are connected to the evaluation unit 15, so that the evaluation unit 15 can then generate a "uniform" trigger signal for the damper drive or the control device 5.
  • the detection device according to the invention can thus cooperate with a conventional damper drive and also a conventional control device, since it is irrelevant to the control device, whether a triggering occurs due to the temperature signal or the smoke signal.
  • the power supply of the sensors 8, 9 can also be effected.
  • an alarm signal optically and / or acoustically in addition to the automatic triggering and consequently the automatic closing of the shut-off device.
  • optical display elements for.
  • light emitting diodes may be provided, which may also be connected to the control electronics or integrated into these. These LEDs are not shown.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)

Description

Die Erfindung betrifft eine Feuerschutzabsperrvorrichtung, insbesondere für Lüftungskanäle, mit einem Absperrgehäuse, einer innerhalb des Absperrgehäuses angeordneten Absperrklappe, einer auf die Absperrklappe arbeitenden Schließvorrichtung sowie einer Detektionsvorrichtung mit zumindest einem Temperatursensor, welche ein Auslösesignal für den Klappenantrieb erzeugt, sodass die Absperrklappe mit der Schließvorrichtung aus einer Freigabeposition in eine Absperrposition überführbar ist. - Eine solche Feuerschutzabsperrvorrichtung wird in der Praxis auch als Feuerschutzklappe bezeichnet. Die darin angeordnete Absperrklappe ist in der Regel in dem Klappengehäuse drehbar, schwenkbar und/oder verschiebbar gelagert, wobei das z. B. rohrförmige Klappengehäuse mit zum Beispiel rundem oder rechteckigem Querschnitt an einen Lüftungskanal angeschlossen oder zwischen Lüftungskanälen montiert wird. Bei der Schließvorrichtung, welche als Klappenantrieb ausgebildet sein kann, handelt es sich insbesondere um einen elektromotorischen Antrieb, z. B. einen Federrücklaufmotor, der mit einer geeigneten Spannung versorgt wird und die Absperrklappe unter gleichzeitigem Spannen der Rückzugsfeder in die Offenstellung bringt. Durch Auslösung, z. B. im Brandfall, wird die Stromversorgung des Federrücklaufmotors unterbrochen, sodass die Absperrvorrichtung mittels der Federenergie in die Geschlossenstellung bzw. Absperrposition überführt wird. Die Feuerschutzabsperrvorrichtung sorgt folglich dafür, dass im Brandfall die Absperrklappe automatisch verschlossen wird, damit ein Durchgang von Luft oder anderen Gasen und/oder ein Durchgang von Feuer und Rauch verhindert wird. Dabei ist die Schließvorrichtung bzw. der Klappenantrieb z. B. über zumindest einen Hebel oder ein Gestänge an die Absperrklappe angeschlossen.The invention relates to a Feuerschutzabsperrvorrichtung, in particular for ventilation ducts, with a shut-off, arranged inside the shut-off valve, a working on the shut-off valve and a detection device with at least one temperature sensor which generates a trigger signal for the damper drive, so that the butterfly valve with the closing device a release position in a shut-off position can be transferred. - Such Feuerschutzabsperrvorrichtung is referred to in practice as a fire damper. The arranged therein butterfly valve is rotatably mounted in the flap housing, pivotally and / or displaceable, wherein the z. B. tubular valve body with, for example, round or rectangular cross-section connected to a ventilation duct or mounted between ventilation ducts. In the closing device, which may be designed as a flap drive, it is in particular an electric motor drive, for. B. a spring return motor, which is supplied with a suitable voltage and brings the butterfly valve with simultaneous tensioning of the return spring in the open position. By triggering, z. As in case of fire, the power supply of the spring return motor is interrupted so that the shut-off device is transferred by means of the spring energy in the closed position or shut-off. The fire protection device thus ensures that in case of fire, the butterfly valve is automatically closed, so that a passage of air or other gases and / or a passage of fire and smoke is prevented. In this case, the closing device or the valve drive z. B. connected via at least one lever or linkage to the butterfly valve.

Aus der Praxis kennt man eine Feuerschutzabsperrvorrichtung der eingangs beschriebenen Art, mit einem runden oder eckigen Gehäuse und einer drehbar bzw. schwenkbar in dem Gehäuse gelagerten Absperrklappe, wobei außenseitig an dem Gehäuse ein Federrücklaufmotor angeschlossen ist, welcher in der beschriebenen Weise auf die Absperrklappe arbeitet. In das Gehäuse bzw. Gehäuseinnere ragt eine als Temperatursensor ausgebildete Detektionsvorrichtung, welche als thermoelektrischer Sensor ausgebildet ist und bei Temperaturen ab ca. 72 °C (Statiktemperatur) auslöst und den Federrücklaufmotor ansteuert.From practice one knows a Feuerschutzabsperrvorrichtung of the type described above, with a round or square housing and a rotatable or pivotally mounted in the housing shut-off valve, wherein on the outside of the housing, a spring return motor is connected, which operates in the manner described on the shut-off valve. In the housing or housing interior protrudes designed as a temperature sensor detection device, which is designed as a thermoelectric sensor and at temperatures above about 72 ° C (static temperature) triggers and controls the spring return motor.

Im Übrigen sind Rauchmeldevorrichtungen für brandschutztechnische Anlagen bekannt, welche zumindest einen optischen Rauchmelder aufweisen. Der Rauchmelder ist in das Gehäuse integriert, welches üblicherweise außenseitig auf einen Luftführungskanal aufgesetzt wird. In den Luftführungskanal ragt lediglich ein Rauchsammelrohr, welches im Brandfall den Rauch aus den Luftführungskanal in den Bereich des Rauchmelders leitet.Incidentally, smoke detection devices for fire protection systems are known which have at least one optical smoke detector. The smoke detector is integrated in the housing, which is usually placed on the outside of an air duct. In the air duct only protrudes a smoke pipe, which directs the smoke from the air duct in the event of fire in the area of the smoke detector.

Diese aus der Praxis bekannten Vorrichtungen haben sich in der Praxis bewährt, sie sind jedoch weiterentwicklungsfähig.These known from practice devices have proven themselves in practice, but they are capable of further development.

Aus der US 4,977,818 ist eine Feuerschutzabsperrvorrichtung für ein Gebäude mit einer z. B. im Dachbereich angeordneten Absperrklappe bekannt, wobei in dem Gebäude eine Vielzahl von Sensoren verteilt sind, die insbesondere als Temperatursensoren ausgebildet sein können. Optional können die in einzelnen Räumen des Gebäudes verteilten Sensoren Feuer, Rauch, Gas oder hohe Temperaturen ermitteln.From the US 4,977,818 is a Feuerschutzabsperrvorrichtung for a building with a z. B. arranged in the roof area shut-off valve, wherein in the building a plurality of sensors are distributed, which may be formed in particular as temperature sensors. Optionally, the sensors distributed in individual rooms of the building can detect fire, smoke, gas or high temperatures.

Die US 5,728,001 beschreibt eine Feuerschutzabsperrvorrichtung mit einer Absperrklappe, wobei ein Temperatursensor in einen Luftführungskanal hineinragt.The US 5,728,001 describes a Feuerschutzabsperrvorrichtung with a butterfly valve, wherein a temperature sensor protrudes into an air duct.

Aus der JP 2002/251680 A kennt man einen Raumrauchmelder, welcher beispielsweise an der Decke eines zu überwachenden Raums montiert werden kann, wobei dieser Raumrauchmelder mit einem zusätzlichen Temperatursensor ausgerüstet ist.From the JP 2002/251680 A one knows a room smoke detector, which are mounted, for example, on the ceiling of a room to be monitored can, this room smoke detector is equipped with an additional temperature sensor.

Der Erfindung liegt die Aufgabe zugrunde, eine Feuerschutzabsperrvorrichtung für einen Lüftungskanal bzw. für Lüftungskanäle der eingangs beschriebenen Art zu schaffen, welche sich bei einfachem und kompakten Aufbau durch ein hohes Maß an Sicherheit und Zuverlässigkeit auszeichnet.The invention has for its object to provide a Feuerschutzabsperrvorrichtung for a ventilation duct or ventilation ducts of the type described above, which is characterized by a high degree of security and reliability in a simple and compact structure.

Zur Lösung dieser Aufgabe lehrt die Erfindung bei einer gattungsgemäßen Feuerschutzabsperrvorrichtung, insbesondere für Lüftungskanäle, der eingangs beschriebenen Art, dass die Detektionsvorrichtung als kombinierte Temperatur- und Rauchdetektionsvorrichtung ausgebildet ist, in welche sowohl ein Temperatursensor als auch ein Rauchsensor integriert ist. Die Detektionsvorrichtung weist vorzugsweise ein in das Gehäuse bzw. Gehäuseinnere ragendes Detektorgehäuse auf, in welchen sowohl der Temperatursensor als auch der Rauchsensor angeordnet sind.To solve this problem, the invention teaches in a generic Feuerschutzabsperrvorrichtung, especially for ventilation ducts, of the type described above, that the detection device is designed as a combined temperature and smoke detection device, in which both a temperature sensor and a smoke sensor is integrated. The detection device preferably has a housing projecting into the housing or housing interior detector housing, in which both the temperature sensor and the smoke sensor are arranged.

Die Erfindung geht dabei von der Erkenntnis aus, dass die Zuverlässigkeit und Sicherheit einer Feuerschutzabsperrvorrichtung erheblich verbessert werden kann, wenn die Absperrfunktion nicht lediglich über einen in das Gehäuseinnere ragenden Temperatursensor ausgelöst wird, sondern wenn ergänzend in die Detektionsvorrichtung ein Rauchmelder integriert ist. Denn während der Temperatursensor lediglich bei ausreichend hohen Temperaturen von z. B. mehr als 70 °C oder 72 °C anspricht, löst der Rauchmelder die Absperrvorrichtung im Brandfall selbst dann aus, wenn im Bereich des Lüftungskanals bzw. der Feuerschutzklappe verhältnismäßig niedrige Temperaturen vorliegen, jedoch Rauch in den Lüftungskanal eindringt. Im Rahmen der Erfindung reicht folglich entweder das Überschreiten der Grenz-Temperatur innerhalb des Lüftungskanals, sodass der Temperatursensor auslöst oder die Detektion von Rauch, sodass der Rauchmelder anspricht. Stets erfolgt eine zuverlässige Auslösung und folglich ein zuverlässiges Absperren der Klappe, sodass eine erhöhte Sicherheit gewährleistet ist. Dieses gelingt bei gleichzeitig kompaktem Aufbau, denn gemäß Erfindung ist eine einheitliche Detektionsvorrichtung mit einem einheitlichen Detektorgehäuse vorgesehen, welches in das Absperrgehäuse ragt und in welchem sowohl der Temperatursensor als auch der Rauchmelder angeordnet sind. Dazu weist das innerhalb des Absperrgehäuses angeordnete Detektorgehäuse eine erste Öffnung auf, durch welche bzw. aus welcher der Temperatursensor herausragt. Dieses schließt im Rahmen der Erfindung jedoch nicht aus, dass der Temperatursensor "geschützt" innerhalb des Absperrgehäuses angeordnet ist. Denn das Detektorgehäuse kann im Bereich des Temperatursensors, z. B. im Bereich der Öffnung, durch welche der Temperatursensor herausragt, ein den Temperatursensor bereichsweise umschließendes und bereichsweise offenes Schutzgehäuse aufweisen. Ein solches Schutzgehäuse kann z. B. als Schutzkäfig oder dergleichen ausgebildet sein. Auf diese Weise wird gewährleistet, dass zuverlässig die Temperatur innerhalb des Absperrgehäuses bzw. der Feuerschutzklappe ermittelt wird, zugleich wird der Temperatursensor jedoch vor mechanischen Beanspruchungen geschützt, die ggf. im Zuge der Montage aber auch im Zuge des Transports oder der Lagerhaltung des Detektors auftreten können.The invention is based on the recognition that the reliability and safety of a fire protection shut-off device can be significantly improved if the shut-off function is triggered not only via a protruding into the housing interior temperature sensor, but if a smoke detector is integrated in addition to the detection device. Because while the temperature sensor only at sufficiently high temperatures of z. B. responds more than 70 ° C or 72 ° C, the smoke detector triggers the shut-off in case of fire, even if relatively low temperatures are present in the ventilation duct or the fire damper, but smoke penetrates into the ventilation duct. In the context of the invention, therefore, either exceeding the limit temperature within the ventilation duct, so that the temperature sensor triggers or the detection of smoke, so that the smoke detector responds. Always a reliable Triggering and consequently a reliable shut-off of the flap, so that increased security is ensured. This succeeds at the same time compact construction, because according to invention a uniform detection device with a uniform detector housing is provided, which protrudes into the shut-off housing and in which both the temperature sensor and the smoke detector are arranged. For this purpose, the detector housing arranged within the shut-off housing has a first opening, through which or out of which the temperature sensor protrudes. However, this does not exclude within the scope of the invention that the temperature sensor is arranged "protected" within the shut-off housing. Because the detector housing can in the range of the temperature sensor, for. B. in the region of the opening, through which protrudes the temperature sensor, a region surrounding the temperature sensor and partially open protective housing. Such a protective housing can, for. B. be designed as a protective cage or the like. In this way, it is ensured that the temperature is reliably determined within the shut-off housing or the fire damper, but at the same time the temperature sensor is protected against mechanical stresses that may occur during assembly but also in the course of transport or storage of the detector ,

Das Detektorgehäuse kann als rohrförmiges, z. B. zylinderförmiges Gehäuse ausgebildet sein. In diesem Fall ist es zweckmäßig, wenn der Temperatursensor durch eine stirnseitige erste Öffnung aus dem Detektorgehäuse (in den Lüftungskanal) vorkragt. Ferner weist das Detektorgehäuse eine zweite Öffnung als Raucheintrittsöffnung auf, sodass der Rauch in das Innere des Detektorgehäuses gelangen kann, in welchem der Rauchmelder angeordnet ist. Diese Raucheintrittsöffnung wird von einem gitterartigen oder einem perforierten Gehäuseabschnitt gebildet. Im Falle eines rohrförmigen bzw. zylinderförmigen Detektorgehäuses ist es zweckmäßig, wenn diese Raucheintrittsöffnung umfangsseitig positioniert ist.The detector housing can be used as a tubular, z. B. cylindrical housing may be formed. In this case, it is expedient for the temperature sensor to protrude from the detector housing (into the ventilation channel) through a front-side first opening. Furthermore, the detector housing has a second opening as a smoke inlet opening, so that the smoke can reach the interior of the detector housing, in which the smoke detector is arranged. This smoke inlet opening is formed by a grid-like or a perforated housing section. In the case of a tubular or cylindrical detector housing, it is expedient if this smoke inlet opening is positioned circumferentially.

In einer alternativen Ausgestaltung ist das Detektorgehäuse nicht als einheitliches rohrförmiges bzw. zylinderförmiges Gehäuse mit über die gesamte Länge im Wesentlichen konstantem Durchmesser ausgebildet, sondern das Detektorgehäuse weist in einer solchen alternativen Ausgestaltung einen ersten rohrförmigen Gehäuseabschnitt auf, welcher z. B. eine Auswerteeinheit aufnimmt und einen sich an den ersten Gehäuseabschnitt anschließenden zweiten Gehäuseabschnitt, welcher den Rauchsensor aufnimmt. Vorzugsweise ist der zweite Gehäuseabschnitt in seiner Form an die Außenkontur des Rauchsensors angepasst. Auf diese Weise können handelsübliche Rauchsensoren in einfacher Weise platzsparend integriert werden. Dazu kann es zweckmäßig sein, dass der zweite Gehäuseabschnitt im Wesentlichen zylindrisch augebildet ist, wobei die (Längs-)Achse dieses zweiten zylindrischen Gehäuseabschnittes in etwa orthogonal auf die (Längs-)Achse des zylindrischen ersten Gehäuseabschnittes steht. Die Höhe des zylindrischen zweiten Gehäuseabschnittes entspricht dann vorzugsweise in etwa dem Durchmesser des ersten zylindrischen Gehäuseabschnittes. Auf diese Weise wird insgesamt ein Detektorgehäuse geschaffen, welches kompakt aufgebaut ist und zugleich die erforderlichen Komponenten platzsparend aufnimmt. Dabei können eine oder mehrere Raucheintrittsöffnungen im Umfangsbereich bzw. im Zylindermantelbereich des zweiten zylindrischen Gehäuseabschnittes angeordnet sein. Die Stirnflächen dieses zylindrischen zweiten Gehäuseabschnittes sind vorzugsweise geschlossen ausgebildet.In an alternative embodiment, the detector housing is not formed as a unitary tubular or cylindrical housing with over the entire length substantially constant diameter, but the detector housing has in such an alternative embodiment, a first tubular housing portion, which z. B. receives an evaluation and a subsequent to the first housing section second housing portion which receives the smoke sensor. The second housing section is preferably adapted in its shape to the outer contour of the smoke sensor. In this way, commercial smoke sensors can be easily integrated to save space. For this purpose, it may be expedient that the second housing section is formed substantially cylindrically, wherein the (longitudinal) axis of this second cylindrical housing section is approximately orthogonal to the (longitudinal) axis of the cylindrical first housing section. The height of the cylindrical second housing section then preferably corresponds approximately to the diameter of the first cylindrical housing section. In this way, a total detector housing is created, which is compact and at the same time takes up the necessary components to save space. In this case, one or more smoke inlet openings may be arranged in the peripheral region or in the cylinder jacket region of the second cylindrical housing section. The end faces of this cylindrical second housing portion are preferably formed closed.

Der Schließmechanismus bzw. Klappenantrieb ist in an sich bekannter Weise vorzugsweise als elektromotorischer Antrieb und/oder als Federantrieb ausgebildet. Dabei kann es sich besonders bevorzugt um einen Federrücklaufmotor handeln. Der Antrieb ist vorzugsweise mit einer Steuervorrichtung versehen bzw. an eine Steuervorrichtung angeschlossen. Sobald die Detektionsvorrichtung ein Auslösesignal erzeugt, wird der Antrieb über die Steuervorrichtung derart angesteuert, dass die Absperrklappe in die Absperrposition überführt wird. Im Falle eines elektromotorischen Federrücklaufmotors bringt diese bei entsprechender Spannungsversorgung die Absperrvorrichtung in die Offenstellung, und zwar unter gleichzeitigem Spannen der innerhalb des Federrücklaufmotors angeordneten Rückzugsfeder. Durch Unterbrechung der Stromversorgung, z. B. bei Vorliegen eines Auslösesignals, wird die Absperrvorrichtung mittels der Federenergie in die Geschlossenstellung gefahren. Bei diesem "Ruhestromprinzip" ist zudem gewährleistet, dass die Absperrklappe auch im Falle eines Kurzschlusses oder bei einer Unterbrechung der Stromversorgung ausgelöst wird.The closing mechanism or flap drive is preferably designed in a manner known per se as an electromotive drive and / or as a spring drive. This may particularly preferably be a spring return motor. The drive is preferably provided with a control device or connected to a control device. As soon as the detection device generates a trigger signal, the drive is controlled via the control device in such a way that the shut-off flap is transferred to the shut-off position. In the case of an electromotive spring return motor brings this with appropriate power supply the shut-off device in the open position, with simultaneous tensioning arranged within the spring return motor return spring. By interrupting the power supply, z. B. in the presence of a trigger signal, the shut-off device is moved by means of the spring energy in the closed position. This "closed-circuit principle" also ensures that the butterfly valve is triggered even in the event of a short circuit or a power cut.

Dazu ist es im Übrigen zweckmäßig, wenn die Detektionsvorrichtung mit einer Auswerteeinheit, z. B. eine Auswerteelektronik versehen ist. An diese Auswerteelektronik sind sowohl der Temperatursensor als auch der Rauchsensor angeschlossen. Die Auswerteelektronik ist wiederum mit dem elektromotorischen Antrieb oder mit der Steuervorrichtung für den elektromotorischen Antrieb verbunden, d. h. die Auswerteeinheit erzeugt das Auslösesignal. Dabei ist es vorteilhaft, wenn die Auswerteelektronik ein Auslösesignal für den Klappenantrieb bzw. die Steuervorrichtung erzeugt, wenn der Temperatursensor ein Temperatursignal und/oder der Rauchsensor ein Rauchsignal erzeugt. Die Auswertung dieser beiden Signale erfolgt folglich vorzugsweise innerhalb der Auswerteelektronik, welche dann im Sinne einer "ODER-Verknüpfung" sowohl bei Auslösung lediglich des Temperatursensors als auch bei Auslösung lediglich des Rauchsensors ein "einheitliches" Auslösesignal für den Klappenantrieb bzw. die Steuervorrichtung erzeugt. Es kann folglich mit einer herkömmlichen Steuervorrichtung bzw. mit einem herkömmlichen Klappenantrieb gearbeitet werden, der lediglich ein "einfaches" Auslösesignal von der Auswertelektronik des Detektors erhält, wobei die Steuervorrichtung unabhängig davon funktioniert, ob die Auslösung durch den Rauchsensor oder den Temperatursensor erfolgt. Grundsätzlich sind auch Ausführungsformen möglich, bei denen eine Auslösung im Sinne einer "UND-Verknüpfung" nur dann erfolgt, wenn sowohl der Temperatursensor als auch der Rauchsensor ansprechen.For this purpose, it is otherwise expedient if the detection device with an evaluation, z. B. an evaluation is provided. Both the temperature sensor and the smoke sensor are connected to this transmitter. The transmitter is in turn connected to the electric motor drive or to the control device for the electric motor drive, ie, the evaluation unit generates the trigger signal. It is advantageous if the evaluation generates a trigger signal for the damper drive or the control device when the temperature sensor generates a temperature signal and / or the smoke sensor generates a smoke signal. The evaluation of these two signals is therefore preferably within the transmitter, which then generates a "uniform" trigger signal for the damper drive or the control device in terms of an "OR link" both when triggering only the temperature sensor and when triggering only the smoke sensor. It can therefore be used with a conventional control device or with a conventional damper drive, which receives only a "simple" trigger signal from the evaluation electronics of the detector, wherein the Regardless of whether the triggering by the smoke sensor or the temperature sensor works. In principle, embodiments are possible in which a triggering in the sense of an "AND operation" only takes place when both the temperature sensor and the smoke sensor respond.

Die Auswerteelektronik bzw. Auswerteeinheit kann vorzugsweise in das Detektorgehäuse integriert werden. Es besteht aber auch die Möglichkeit, die Auswerteelektronik außerhalb des Detektorgehäuses in einem separaten Gehäuse vorzusehen, welches dann z. B. außerhalb des Absperrgehäuses angeordnet ist.The evaluation electronics or evaluation unit can preferably be integrated into the detector housing. But it is also possible to provide the transmitter outside of the detector housing in a separate housing, which then z. B. is arranged outside the shut-off housing.

Auswerteelektronik einerseits und Steuervorrichtung für den Motor andererseits können jedoch auch kombiniert werden, d. h. die Auswerteelektronik kann in die Steuervorrichtung integriert werden oder umgekehrt.However, evaluation electronics on the one hand and control device for the motor on the other hand can also be combined, i. H. the evaluation can be integrated into the control device or vice versa.

Der Rauchsensor ist in an sich bekannter Weise vorzugsweise als optischer Sensor ausgebildet. Insofern kann auf bekannte, nach dem optischen Prinzip mittels einer oder mehrerer Dioden bzw. Diodendetektoren arbeitenden Sensoren zurückgegriffen werden.The smoke sensor is preferably formed in a conventional manner as an optical sensor. In this respect, recourse can be had to known sensors operating on the optical principle by means of one or more diodes or diode detectors.

Im Folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. Es zeigen

Fig. 1
eine erfindungsgemäße Feuerschutzabspenvorriehtung für einen Lüftungskanal in einer perspektivischen Darstellung,
Fig. 2
die Detektionsvorrichtung des Gegenstandes nach Fig. 1 in einer vergrößerten Darstellung,
Fig. 3
den Gegenstand nach Fig. 2 in einer teilaufgebrochenen Seitenansicht,
Fig. 4
einen Schnitt A-A durch den Gegenstand nach Fig. 3,
Fig. 5
eine Detektionsvorrichtung gemäß Fig. 2 in eine abgewandelten Ausführungsform,
Fig. 6
den Gegenstand nach Fig. 5 mit geöffnetem Gehäuse und
Fig. 7
den Gegenstand nach Fig. 5 in einer Seitenansicht.
In the following the invention will be explained in more detail with reference to a drawing showing only one exemplary embodiment. Show it
Fig. 1
a Feuerschutzabspenvorriehtung invention for a ventilation duct in a perspective view,
Fig. 2
the detection device of the object after Fig. 1 in an enlarged view,
Fig. 3
the object after Fig. 2 in a partially broken side view,
Fig. 4
a section AA through the object after Fig. 3 .
Fig. 5
a detection device according to Fig. 2 in a modified embodiment,
Fig. 6
the object after Fig. 5 with the housing open and
Fig. 7
the object after Fig. 5 in a side view.

In den Figuren ist eine Feuerschutzabsperrvorrichtung für Lüftungskanäle bzw. für einen Lüftungskanal dargestellt. Diese Feuerschutzabspenvorrichtung, die in der Praxis auch als Feuerschutzklappe bezeichnet wird, weist in ihrem grundsätzlichen Aufbau ein Absperrgehäuse 1 sowie eine in dem Absperrgehäuse 1 angeordnete Absperrklappe 2. Das Absperrgehäuse 1 ist im Ausführungsbeispiel als zylinderförmiger Rohrstutzen ausgebildet, welches an einen rohrförmigen Lüftungskanal anschließbar ist oder zwischen zwei Lüftungskanälen angeordnet wird. Die Absperrklappe 2 ist innerhalb des Absperrgehäuses 1 drehbar gelagert. Ferner ist ein Schließmechanismus in der Ausführungsform als Klappenantrieb 3 vorgesehen, welcher über ein Gestänge bzw. eine Hebelanordnung oder ein Hebelgetriebe 4 auf die Absperrklappe arbeitet. Der Klappenantrieb 3 ist im Ausführungsbeispiel als elektromotorischer Antrieb in der Ausführungsform als Federrücklaufmotor ausgebildet. Dieser Antrieb 3 ist mit einer Steuervorrichtung 5 ausgestattet und im Übrigen an eine geeignete Spannungsversorgung 6 angeschlossen. Ober diese Spannungsversorgung bringt der Federrücklaufmotor die Absperrklappe 2 in die in Fig. 1 dargestellte Offenstellung, in welcher der Durchgang durch das Gehäuseinnere freigegeben wird. Im Zuge des Öffnens der Klappe 2 wird zugleich die Rücklauffeder des Federrücklaufmotors 3 gespannt. Wird nun die Spannungsversorgung, z. B. durch Auslösung im Brandfall unterbrochen, so schließt die in den Federrücklaufmotor 3 integrierte Rücklauffeder die Absperrklappe 2 und bringt diese folglich in die nicht dargestellte Absperrposition.In the figures, a Feuerschutzabsperrvorrichtung is shown for ventilation ducts or for a ventilation duct. This Feuerschutzabspenvorrichtung, which is also referred to in practice as a fire damper, has in its basic structure a shut-off housing 1 and arranged in the shut-off housing 1 shut-off valve 2. The shut-off housing 1 is formed in the embodiment as a cylindrical pipe socket, which is connectable to a tubular ventilation duct or is arranged between two ventilation channels. The butterfly valve 2 is rotatably mounted within the shut-off housing 1. Furthermore, a closing mechanism is provided in the embodiment as a damper drive 3, which operates via a linkage or a lever arrangement or a lever mechanism 4 on the butterfly valve. The damper drive 3 is formed in the embodiment as an electric motor drive in the embodiment as a spring return motor. This drive 3 is equipped with a control device 5 and, moreover, connected to a suitable power supply 6. This power supply brings the spring return motor, the butterfly valve 2 in the Fig. 1 illustrated open position in which the passage through the housing interior is released. In the course of opening the flap 2, the return spring of the spring return motor 3 is stretched at the same time. Now the power supply, z. B. interrupted by tripping in the event of fire, the return spring integrated in the spring return motor 3 closes the butterfly valve 2 and thus brings them into the shut-off position, not shown.

Dazu ist eine in das Absperrgehäuse 1 ragende Detektionsvorrichtung 7 vorgesehen, welche mit dem Klappenantrieb 3 bzw. dessen Steuervorrichtung 5 verbunden ist und ein Auslösesignal im Alarmfall erzeugt, sodass die Absperrklappe 2 mit dem Klappenantrieb 3 aus der Freigabeposition in die Absperrposition überführt wird, in welcher der Durchgang durch das Gehäuse 1 und folglich auch durch die daran angeschlossenen Lüftungskanäle verschlossen wird.For this purpose, a projecting into the shut-off housing 1 detection device 7 is provided, which is connected to the damper drive 3 and its control device 5 and generates a trigger signal in case of alarm, so that the butterfly valve 2 is transferred with the damper drive 3 from the release position to the shut-off position, in which the passage through the housing 1 and consequently also closed by the ventilation ducts connected thereto.

Erfindungsgemäß ist die Detektionsvorrichtung 7 nun als kombinierte Temperatur- und Rauchdetektionsvorrichtung ausgebildet. Dazu ist in diese Detektionsvorrichtung 7 sowohl ein Temperatursensor 8 als auch ein Rauchsensor 9 integriert. Die Detektionsvorrichtung 7 weist ein z. B. rohrförmiges bzw. zylinderförmiges Detektionsgehäuse 10 auf, welches gleichsam einen kombinierten Rauch- und Temperaturfühler bildet, der in das Innere des Absperrgehäuses 1 ragt.According to the invention, the detection device 7 is now designed as a combined temperature and smoke detection device. For this purpose, both a temperature sensor 8 and a smoke sensor 9 are integrated in this detection device 7. The detection device 7 has a z. B. tubular or cylindrical detection housing 10, which as it forms a combined smoke and temperature sensor, which projects into the interior of the shut-off housing 1.

Der Aufbau einer ersten Ausführungsform dieser erfindungsgemäßen Detektionsvorrichtung 7 ergibt sich beispielhaft aus einer vergleichenden Betrachtung der Fig. 2, 3 und 4. Sie wird über einen endseitigen Befestigungsflansch 11 in einer Montageöffnung 12 des Absperrgehäuses 1 befestigt.The construction of a first embodiment of this detection device 7 according to the invention results, for example, from a comparative analysis of Fig. 2 . 3 and 4 , It is fastened via an end-side mounting flange 11 in a mounting opening 12 of the shut-off housing 1.

Das Detektorgehäuse 10 weist eine stirnseitige Öffnung 13 auf, durch welche der Temperatursensor 8 etwas vorkragt. Auf diese Weise wird gewährleistet, dass beispielsweise ein handelsüblicher Thermofühler als Temperatursensor unmittelbar innerhalb des Absperrgehäuses angeordnet ist, sodass eine zuverlässige Temperaturdetektion gelingt. Ergänzend weist das Detektorgehäuse 10 eine Raucheintrittsöffnung 14 auf. Denn der Rauchsensor 9 ist innerhalb des in das Absperrgehäuse 1 ragenden Detektorgehäuses 10 angeordnet, sodass der Rauch über die Raucheintrittsöffnung 14 in den Bereich des Rauchsensors 9 gelangen kann. Die Raucheintrittsöffnung 14 wird dabei von einem gitterartigen oder einem perforierten Gehäuseabschnitt gebildet bzw. ist mit einem solchen gitterartigen oder perforiertem Gehäuseabschnitt abgedeckt. Im Ausführungsbeispiel ist diese Raucheintrittsöffnung 14 umfangsseitig angeordnet. In Fig. 4 ist erkennbar, dass der Rauchsensor selbst direkt unter der Raucheintrittsöffnung 14 bzw. dem perforierten Gehäusebereich angeordnet ist, und zwar in der Nähe des Gehäuseendes.The detector housing 10 has an end opening 13 through which the temperature sensor 8 protrudes slightly. In this way it is ensured that, for example, a commercially available thermal sensor is arranged as a temperature sensor directly inside the shut-off housing, so that a reliable temperature detection succeeds. In addition, the detector housing points 10 a smoke inlet opening 14. For the smoke sensor 9 is disposed within the detector housing 10 projecting into the shut-off housing 1, so that the smoke can reach the area of the smoke sensor 9 via the smoke inlet opening 14. The smoke inlet opening 14 is formed by a grid-like or a perforated housing section or is covered with such a grid-like or perforated housing section. In the exemplary embodiment, this smoke inlet opening 14 is arranged circumferentially. In Fig. 4 It can be seen that the smoke sensor itself is arranged directly under the smoke inlet opening 14 or the perforated housing area, in the vicinity of the housing end.

Die Fig. 5 bis 7 zeigen eine abgewandelte, bevorzugte Ausführungsform einer erfindungsgemäßen Detektionsvorrichtung 7. Diese Ausführungsform unterscheidet sich von der Ausführungsform gemäß Fig. 1 bis 4 unter anderem durch die Form des Detektorgehäuses 10. So ist erkennbar, dass das Detektorgehäuse 10 einen ersten rohrförmigen bzw. zylinderförmigen Gehäuseabschnitt 10a aufweist und einen sich an den ersten Gehäuseabschnitt 10a anschließenden zweiten Gehäuseabschnitt 10b aufweist. Dieser zweite Gehäuseabschnitt 10b nimmt den Rauchsensor 9 auf. Dazu ist der zweite Gehäuseabschnitt 10b in seiner Form an die Außenkontur des Rauchsensors 9 angepasst. Im Ausführungsbeispiel ist dieser zweite Gehäuseabschnitt 10b dazu ebenfalls zylindrisch bzw. im Wesentlichen zylindrisch ausgebildet, wobei die Achse 16b dieses zweiten zylindrischen Gehäuseabschnittes 10b in etwa orthogonal zu der Achse 16a des ersten zylindrischen Gehäuseabschnittes 10a angeordnet ist. Auf diese Weise kann ein herkömmlich aufgebauter Rauchsensor 9 platzsparend in das Gehäuse 10 integriert werden. Die Höhe h des zweiten zylindrischen Gehäuseabschnittes 10b entspricht dabei in etwa dem Durchmesser d des ersten zylindrischen Gehäuseabschnittes 10a. Das bedeutet, dass die Höhe h (wie dargestellt) auch (etwas) von der Dicke d abweichen kann, z. B. etwas größer sein kann, z. B. um bis zu 20 %, vorzugsweise um lediglich bis zu 15 %. Die Raucheintrittsöffnungen 14 sind im Umfangsbereich bzw. Zylindermantelbereich des zweiten Gehäuseabschnittes 10b angeordnet. Es sind zwei Raucheintrittsöffnungen 14 vorgesehen. Die Stimflächen 17 dieses zweiten zylindrischen Gehäuseabschnittes 10b sind geschlossen. Ferner ist erkennbar, dass bei der Ausführungsform gemäß Fig. 5 bis 7 der Temperatursensor 8 nicht frei aus dem Detektorgehäuse 10 herausragt, sondern dass das Detektorgehäuse 10 im Bereich des Temperatursensors 8 und folglich auch im Bereich der Öffnung 13 ein den Temperatursensor bereichsweise umschießendes und bereichsweise offenes Schutzgehäuse 13a aufweist. Dieses Schutzgehäuse ist im Ausführungsbeispiel als Schutzkäfig 13a ausgebildet. Es wird deutlich, dass auf diese Weise ein einwandfreie Temperaturerkennung möglich ist, dass der Temperatursensor 8 jedoch gegen mechanische Beschädigungen geschützt ist. Der Temperatursensor 8 ist im Bereich der Öffnung 13 an einem z. B. in der Öffnung angeordneten Haltesteg befestigt. Es ist erkennbar, dass der Temperatursensor 8 bei dieser bevorzugten Ausführungsform nicht durch den Rauchsensor hindurch oder an ihm vorbeigeführt ist, sondern (vollständig) in dem Bereich des endseitigen Schutzkäfigs 13a positioniert ist. Es ist dann lediglich erforderlich, die Verkabelung für den Temperatursensor 8 an dem Rauchsensor 9 vorbeizuführen. Der Haltesteg, an dem der Temperatursensor fußseitig befestigt ist, liegt (in etwa) auf dem Umfang des zweiten zylindrischen Gehäuseabschnitts 10b und folglich außerhalb des Umfangs des Rauchsensors 9. Bei dieser Ausführungsform mit einem Temperatursensor in kleiner Bauform ist der Schutzkäfig 13a besonders zweckmäßig. Ein Schutzkäfig 13a gemäß Fig. 5 bis 7 kann aber grundsätzlich auch bei der Ausführungsform gemäß Fig. 2 bis 4 vorgesehen sein. Dieses ist nicht dargestellt.The Fig. 5 to 7 show a modified, preferred embodiment of a detection device according to the invention 7. This embodiment differs from the embodiment according to Fig. 1 to 4 Among other things, by the shape of the detector housing 10. Thus, it can be seen that the detector housing 10 has a first tubular or cylindrical housing portion 10a and has a subsequent to the first housing portion 10a second housing portion 10b. This second housing section 10b receives the smoke sensor 9. For this purpose, the second housing section 10b is adapted in its shape to the outer contour of the smoke sensor 9. In the embodiment, this second housing portion 10b is also cylindrical or substantially cylindrical, wherein the axis 16b of this second cylindrical housing portion 10b is arranged approximately orthogonal to the axis 16a of the first cylindrical housing portion 10a. In this way, a conventionally constructed smoke sensor 9 can be integrated into the housing 10 to save space. The height h of the second cylindrical housing portion 10b corresponds approximately to the diameter d of the first cylindrical housing portion 10a. This means that the height h (as shown) may also differ (slightly) from the thickness d, z. B. may be slightly larger, z. B. by up to 20%, preferably only up to 15%. The smoke inlet openings 14 are arranged in the peripheral region or cylinder jacket region of the second housing section 10b. There are two smoke inlet openings 14 are provided. The end surfaces 17 of this second cylindrical housing portion 10b are closed. Furthermore, it can be seen that in the embodiment according to Fig. 5 to 7 the temperature sensor 8 does not protrude freely out of the detector housing 10, but that the detector housing 10 in the region of the temperature sensor 8 and consequently also in the region of the opening 13 has a protective housing 13a partially surrounding the temperature sensor and partially open. This protective housing is formed in the embodiment as a protective cage 13a. It becomes clear that in this way a perfect temperature detection is possible, but that the temperature sensor 8 is protected against mechanical damage. The temperature sensor 8 is in the region of the opening 13 at a z. B. attached in the opening arranged holding web. It will be appreciated that in this preferred embodiment, the temperature sensor 8 is not passed or past the smoke sensor, but is (fully) positioned in the region of the end guard cage 13a. It is then only necessary to pass the wiring for the temperature sensor 8 to the smoke sensor 9. The holding ridge on which the temperature sensor is attached to the foot is (approximately) on the circumference of the second cylindrical housing portion 10b and thus outside the periphery of the smoke sensor 9. In this embodiment with a temperature sensor in a small design of the protective cage 13a is particularly useful. A protective cage 13a according to Fig. 5 to 7 but in principle in the embodiment according to Fig. 2 to 4 be provided. This is not shown.

Temperatursensor 8 einerseits und Rauchsensor 9 andererseits sind über innerhalb des Detektorgehäuses 10 geführte Anschlusskabel mit einer gemeinsamen Auswerteeinheit bzw. Auswerteelektronik 15 verbunden, welche bei der Ausführungsform nach Fig. 2 bis 4 außerhalb des Absperrgehäuses 1 angeordnet ist. Diese Auswerteelektronik 15 ist - wie in Fig. 1 angedeutet - mit dem Klappenantrieb 3 bzw. dessen Steuervorrichtung 5 verbunden. Die Auswerteelektronik 15 ist dabei so ausgelegt, dass ein Auslösesignal erzeugt wird, wenn der Temperatursensor 8 oder der Rauchsensor 9 anspricht. Die Sensorsignale sind folglich im Sinne einer logischen ODER-Verknüpfung ausgewertet. Grundsätzlich wäre zwar auch eine logische UND-Verknüpfung möglich. Die logische ODER-Verknüpfung zeichnet sich jedoch durch ein erhöhtes Maß an Auslösesicherheit aus, da die Absperrklappe 2 beispielsweise auch dann geschlossen wird, wenn die Temperaturen niedrig sind und dennoch Rauch detektiert wird. Empfindlichkeit des Rauchsensors 9 und/oder des Temperatursensors 8 sind einstellbar.Temperature sensor 8 on the one hand and smoke sensor 9 on the other hand are connected via guided inside the detector housing 10 connecting cable with a common evaluation or evaluation electronics 15, which in the Embodiment after Fig. 2 to 4 is arranged outside the shut-off housing 1. This evaluation 15 is - as in Fig. 1 indicated - connected to the damper actuator 3 and its control device 5. The transmitter 15 is designed so that a trigger signal is generated when the temperature sensor 8 or the smoke sensor 9 responds. The sensor signals are consequently evaluated in the sense of a logical OR operation. In principle, a logical AND connection would also be possible. However, the logical OR operation is characterized by an increased level of trip safety, since the butterfly valve 2 is closed, for example, even when the temperatures are low and yet smoke is detected. Sensitivity of the smoke sensor 9 and / or the temperature sensor 8 are adjustable.

Optional besteht im Übrigen die Möglichkeit, dass die Auswerteeinheit 15 innerhalb des Detektorgehäuses 10 angeordnet ist. Dieses ist beispielhaft in den Fig. 5 bis 7 dargestellt. Die Auswerteeinheit 15 ist dabei in dem ersten zylindrischen Gehäuseabschnitt 10a angeordnet. Auch bei dieser Ausführungsform ist es zweckmäßig, wenn die beiden Sensoren 8, 9 mit der Auswerteeinheit 15 verbunden sind, so dass die Auswerteeinheit 15 dann ein "einheitliches" Auslösesignal für den Klappenantrieb bzw. die Steuervorrichtung 5 erzeugen kann. Die erfindungsgemäße Detektionsvorrichtung kann folglich mit einem herkömmlichen Klappenantrieb und auch einer herkömmlichen Steuer vorrichtung zusammenarbeiten, da es für die Steuervorrichtung unerheblich ist, ob eine Auslösung aufgrund des Temperatursignals oder des Rauchsignals erfolgt.Optionally, there is the possibility that the evaluation unit 15 is arranged within the detector housing 10. This is exemplary in the Fig. 5 to 7 shown. The evaluation unit 15 is arranged in the first cylindrical housing portion 10a. Also in this embodiment it is expedient if the two sensors 8, 9 are connected to the evaluation unit 15, so that the evaluation unit 15 can then generate a "uniform" trigger signal for the damper drive or the control device 5. The detection device according to the invention can thus cooperate with a conventional damper drive and also a conventional control device, since it is irrelevant to the control device, whether a triggering occurs due to the temperature signal or the smoke signal.

Über die Auswerteeinheit 15, an welche die Sensoren 8, 9 angeschlossen sind, kann im Übrigen auch die Stromversorgung der Sensoren 8, 9 erfolgen.By way of the evaluation unit 15, to which the sensors 8, 9 are connected, the power supply of the sensors 8, 9 can also be effected.

Ferner besteht optional die Möglichkeit, zusätzlich zur automatischen Auslösung und folglich zum automatischen Schließen der Absperrvorrichtung ein Alarmsignal optisch und/oder akustisch anzuzeigen. Dazu können beispielsweise optische Anzeigeelemente, z. B. Leuchtdioden vorgesehen sein, die ebenfalls mit der Steuerelektronik verbunden bzw. in diese integriert sein können. Diese Leuchtdioden sind nicht dargestellt.Furthermore, it is optionally possible to display an alarm signal optically and / or acoustically in addition to the automatic triggering and consequently the automatic closing of the shut-off device. For example, optical display elements, for. As light emitting diodes may be provided, which may also be connected to the control electronics or integrated into these. These LEDs are not shown.

Claims (13)

  1. A fire-protection shutoff device for ventilation ducts, having at least
    a shutoff housing (1), which is attached to a ventilation duct or is mounted between ventilation ducts,
    a shutoff flap (2) arranged inside the shutoff housing (1),
    a closing device (3) acting on the shutoff flap (2), and
    a detection device (7) having at least one temperature sensor (8), which generates a trigger signal for the closing device (3), so that
    the shutoff flap (2) can be moved with the closing device (3) from an open position into a shutoff position,
    characterised in that
    - the detection device (7) is in the form of a combined temperature and smoke detection device, in which at least one temperature sensor (8) and at least one smoke sensor (9) are integrated,
    - the detection device (7) has a single detector housing (10), which projects into the shutoff housing (1) and in which the temperature sensor (8) and the smoke sensor (9) are arranged,
    - the detector housing (10) has an opening (13), through which or out of which the temperature sensor (8) projects by a predefined amount, and
    - the detector housing (10) has at least one smoke inlet opening (14), which is formed by a grille-like or perforated housing section or is covered by such.
  2. The device according to Claim 1,
    characterised in that
    in the region of the temperature sensor (8), for example in the region of the opening (13), the detector housing (10) has a protective housing, for example a protective cage (13a), which encloses the temperature sensor at least in some regions and is open in some regions.
  3. The device according to Claim 1 or 2,
    characterised in that
    the detector housing (10) is in the form of a tubular housing having for example a round or rectangular cross section.
  4. The device according to Claim 3,
    characterised in that
    the opening (13) for the temperature sensor (8) is arranged in the detector housing (10) on the front face or at the end.
  5. The device according to Claim 3 or 4,
    characterised in that
    the smoke inlet opening (14) is arranged on the circumferential face in the detector housing (10).
  6. The device according to any one of Claims 1 to 5,
    characterised in that
    the detector housing (10) has a first tubular, for example cylindrical, housing section (10a), which accommodates an electronic evaluation system (15), for example, and a second housing section (10b), which adjoins the first housing section (10a) and accommodates the smoke sensor (9), the shape of the second housing section (10b) complementing the outer contour of the smoke sensor (9).
  7. The device according to Claim 6,
    characterised in that
    the second housing section (10b) is substantially cylindrical, the axis (16b) of said second housing section (10b) being arranged approximately orthogonally to the axis (16a) of the first housing section (10a).
  8. The device according to Claim 6 or 7,
    characterised in that
    the height (h) of the cylindrical second housing section (10b) corresponds approximately to the diameter (d) of the cylindrical first housing section (10a).
  9. The device according to any one of Claims 6 to 8,
    characterised in that
    one or more smoke inlet openings are arranged in the circumferential region or cylinder lateral region of the second housing section (10b).
  10. The device according to any one of Claims 1 to 9,
    characterised in that
    the closing device is in the form of a flap drive (3), for example an electric motor drive and/or spring drive, preferably a spring return motor.
  11. The device according to any one of Claims 1 to 10,
    characterised in that
    the detection device (7) is equipped with an evaluation unit or electronic evaluation system (15), which is connected to the temperature sensor (8) and to the smoke sensor (9).
  12. The device according to any one of Claims 1 to 11,
    characterised in that
    the flap drive (3) is equipped with a control device (5) or is connected to such.
  13. The device according to Claim 11 in combination with Claim 10 or according to Claim 12,
    characterised in that
    the electronic evaluation system (15) generates a trigger signal for the flap drive (3) or for the control device (5) when the temperature sensor (8) generates a temperature signal and/or the smoke sensor (9) generates a smoke signal.
EP09003193.1A 2008-05-17 2009-03-05 Fire damping device Not-in-force EP2119479B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009101381279A CN101579559B (en) 2008-05-17 2009-05-05 Fire damping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008024085.0A DE102008024085B4 (en) 2008-05-17 2008-05-17 Feuerschutzabsperrvorrichtung

Publications (3)

Publication Number Publication Date
EP2119479A1 EP2119479A1 (en) 2009-11-18
EP2119479B1 true EP2119479B1 (en) 2017-01-04
EP2119479B2 EP2119479B2 (en) 2020-02-12

Family

ID=40943689

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09003193.1A Not-in-force EP2119479B2 (en) 2008-05-17 2009-03-05 Fire damping device

Country Status (3)

Country Link
EP (1) EP2119479B2 (en)
CN (1) CN101579559B (en)
DE (1) DE102008024085B4 (en)

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DE202017103273U1 (en) 2017-05-31 2017-06-28 Strulik Gmbh Feuerschutzabsperrvorrichtung

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US5728001A (en) 1993-12-29 1998-03-17 Johnson Controls, Inc. Remotely trippable and resettable damper
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Also Published As

Publication number Publication date
DE102008024085B4 (en) 2016-03-17
EP2119479B2 (en) 2020-02-12
EP2119479A1 (en) 2009-11-18
CN101579559B (en) 2013-07-17
CN101579559A (en) 2009-11-18
DE102008024085A1 (en) 2009-11-26

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