EP1542188A1 - Apparatus and process for detecting the formation of a fire - Google Patents
Apparatus and process for detecting the formation of a fire Download PDFInfo
- Publication number
- EP1542188A1 EP1542188A1 EP04028927A EP04028927A EP1542188A1 EP 1542188 A1 EP1542188 A1 EP 1542188A1 EP 04028927 A EP04028927 A EP 04028927A EP 04028927 A EP04028927 A EP 04028927A EP 1542188 A1 EP1542188 A1 EP 1542188A1
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- European Patent Office
- Prior art keywords
- opening
- suction
- supply line
- rubber
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
- G08B17/113—Constructional details
Definitions
- the invention relates to a device for detecting incipient fires according to the preamble of the first claim and a method for cleaning the device.
- the invention is applicable everywhere where incipient fires in rooms or electronic devices are possible.
- the device is also applicable where explosion zones according to ATEX95 and 137 are present, for example in the dust-laden industry (wood and mill industry.)
- a detector for detecting a fire characteristic via a supply line in the space to be monitored or is arranged on or in the device to be monitored and has a number of suction ports, continuously supplied to room air or device samples. If the detector detects a fire detection variable, an evaluation unit, which is electronically connected to it, outputs a signal according to predetermined criteria.
- supply line does not only mean pipelines that are attached to a room protection and lead to an air outlet opening in the housing of the detector and suck the room or device cooling air through suction
- the supply line can also be a suction hopper, a collecting hood or a T- represent shaped pipe hood, which is placed for example on the air outlet grille of an electronic device and thereby arranged in the main cooling stream of the device.
- Fire detection variables are understood to mean physical quantities which are subject to measurable changes in the environment of an incipient fire, for example the ambient temperature, the solid or liquid or gas component in the ambient air or the ambient radiation.
- a method and a device for detecting incipient fires in rooms or in electronic devices are known with a detector for detecting a fire characteristic with at least one supply line in the space to be monitored or on or in the device to be monitored is arranged and has a number of suction through which room air or device cooling air samples are supplied continuously.
- An evaluation unit is electronically connected to a detector and emits a signal according to predetermined criteria when the detector detects a fire detection variable.
- This device has the disadvantage that settles increasingly dust at the holes of the intake. This leads to the detection system increasingly losing its functionality.
- Such a method and such a device are known for example from DE 295 18 042 U1 or DE 33 48 107 C2 .
- the detection reliability of a fire parameter decreases with increasing distance from the aspirating fan due to the pressure drop occurring in the pipelines.
- the supply line may also consist of a pipeline, which is, however, significantly shorter, so that all suction can be the same. However, they must have different diameters with different number of suction because the total suction can only be within a small bandwidth.
- suction holes can be drilled on the construction site in the supply / supply lines. Due to the wall thickness of the supply line accumulates in practice at the hole of the intake more dust. This then leads to the detection system increasingly losing its functionality. To prevent this, a frequent and high maintenance is necessary.
- the object of the invention is therefore to develop a device which has a high effectiveness and a permanently high sensitivity when detecting incipient fires over the Has entire monitoring area, the maintenance is to be low.
- the device according to the invention provides that the suction openings in the supply line, which can have the same diameter and can be produced by drilling, have a rubber-elastic part with an inner opening with a smaller diameter.
- the rubber-elastic part closes the opening of the supply line not only gas-tight, but also ensures that the film is loadable on both sides, ie through the hole in the film, a gas flow into the supply line and a gas flow from the supply can take place without the rubber-elastic Part has leaks against the supply line.
- suction holes which are glued over with foil, it is not possible to direct the gas flow in the opposite direction, without the release film adhering from the outside being peeled off over a longer period of use.
- These adhesively bonded foils are only suitable for reliably enabling the limitation of a gas flow into the device, but not for a gas flow which is carried out from the supply line.
- the film on the rubber-elastic part is advantageous to arrange the film on the rubber-elastic part at the top.
- a gas flow from the inside to the outside through the opening of the film by means of a fan.
- the air flow can be blown at predetermined time intervals from the inside against the film by a timer, so that a continuous cleaning is given.
- a filter can be used in the region of the intake openings over the entire tube. This prevents dust from entering the supply line and dust concentrations that form explosive mixtures.
- the present invention provides two ways to protect the intake ports from contamination. Since the use with the elastic membrane in the outer diameter is considerably larger than the suction holes, a dust filter can be placed on the intake from the outside. For this purpose, a dust filter is integrated into the elastic membrane. By means of the air flow monitoring system, the condition of these dust filters is constantly checked for function. The dust filter can also be placed over the entire pipe of the supply line in the region of the intake openings in order to increase the filter surface. The filters are cleaned either by counter-rinsing, cleaning or replacement.
- the big advantage of this solution according to the invention is that all suction holes get an insert, which in the suction bore with a thin membrane has high sliding properties.
- This solution according to the invention is highly prevents dust deposition in the area of the bore.
- the thin membrane has a certain elasticity. Should In the area of the suction through certain environmental properties deposit dust, the reliability of the "device for detecting incipient fires" impaired, the introduction of purging air in the supply line, the intake ports Clean easily, as the membrane bulges outwards due to increased pressure and thereby easily peel off the dust.
- the introduction of the purging air can be done via the intake fan by means of compressed air at the air outlet or via a bypass between the fan and the first suction port. Another possibility is to reverse the intake fan in its direction of rotation. Thus, the supply line to a pressure line and cleans the suction with the outflowing air. This can also be done automatically. However, it should be noted that the fire detection is interrupted during the rinsing phase.
- FIG. 3 shows a feed line 3 with its suction opening 5.
- This suction opening 5 can easily be passed by dust particles, so that contamination of the detectors continuously occurs.
- the cross section of the opening 5 may have to be adapted to the desired flow cross section.
- Figure 2 shows a rubber-elastic part 1, which has a groove 8 for fastening, wherein the inner diameter is provided with a film 2 having an opening 4 for the air flow.
- the film 2 is equally strong on both sides.
- the rubber-elastic part 1 is introduced into the supply line 3.
- FIG. 1 shows a supply line 3, in which a rubber-elastic part 1 is introduced, which has a film 2 with an opening 4 at its upper edge. This is advantageous in that no corners arise between the rubber-elastic part 1 and the inner film 2, in which polluting particles can settle. Against coarse particles, the opening 4 of the film 2 is protected by a filter 7 to the entire tube 3.
- FIG. 4 shows a rubber-elastic part 1 which is provided with a filter 6 above the suction opening 4.
- a strong contamination is prevented by the fact that the air flow through the opening 4 is easily reversible, with the result that any dust deposits are entrained to the outside. Furthermore, the penetration of coarse particles by attaching the filters 6, 7 is prevented.
- the present invention opens up a broad spectrum of operational capability, especially in dust-prone areas.
- the inventive design the advantages of fire detection can be used with multi-sensor intake detectors through the use of filters and convenient cleaning by means of the membrane insert in dust hazardous areas.
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
- Fire Alarms (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum Detektieren von Entstehungsbränden
entsprechend dem Oberbegriff des ersten Patentanspruches und ein Verfahren zum
Reinigen der Vorrichtung.
Die Erfindung ist überall dort anwendbar, wo Entstehungsbrände in Räumen oder
elektronischen Geräten möglich sind. Die Vorrichtung ist weiterhin da anwendbar, wo
Explosionszonen nach ATEX95 und 137 vorhanden sind, beispielsweise in der
staubbelasteten Industrie (Holz- und Mühlenindustrie.) Bei der Vorrichtung werden in einem
Detektor zum Erkennen einer Brandkenngröße über eine Zuleitung, die in dem zu
überwachenden Raum bzw. an oder in dem zu überwachenden Gerät angeordnet ist und
eine Anzahl von Ansaugöffnungen aufweist, kontinuierlich Raumluft bzw. Geräteproben
zugeführt. Wenn der Detektor eine Branderkennungsgröße detektiert, gibt eine
Auswerteeinheit, die mit ihm elektronisch verbunden ist, nach vorgegebenen Kriterien ein
Signal ab. Unter dem Begriff Zuleitung sind nicht ausschließlich Rohrleitungen zu verstehen,
die für einen Raumschutz befestigt sind und zu einer Luftaustrittsöffnung in das Gehäuse
des Detektors führen und die Raum- oder Gerätekühlluft durch Ansaugöffnungen einsaugen,
die Zuleitung kann auch einen Ansaugtrichter, eine Sammelhaube oder eine T-förmige
Rohrhaube darstellen, welche beispielsweise auf das Luftaustrittsgitter eines elektronischen
Gerätes aufgesetzt und dadurch im Kühlhauptstrom des Gerätes angeordnet wird. Als
Branderkennungsgröße werden physikalische Größen verstanden, die in der Umgebung
eines Entstehungsbrandes meßbaren Veränderungen unterliegen, beispielsweise die
Umgebungstemperatur, der Feststoff oder Flüssigkeits- oder Gasanteil in der Umgebungsluft
oder die Umgebungsstrahlung.The invention relates to a device for detecting incipient fires according to the preamble of the first claim and a method for cleaning the device.
The invention is applicable everywhere where incipient fires in rooms or electronic devices are possible. The device is also applicable where explosion zones according to ATEX95 and 137 are present, for example in the dust-laden industry (wood and mill industry.) In the apparatus are in a detector for detecting a fire characteristic via a supply line in the space to be monitored or is arranged on or in the device to be monitored and has a number of suction ports, continuously supplied to room air or device samples. If the detector detects a fire detection variable, an evaluation unit, which is electronically connected to it, outputs a signal according to predetermined criteria. The term "supply line" does not only mean pipelines that are attached to a room protection and lead to an air outlet opening in the housing of the detector and suck the room or device cooling air through suction, the supply line can also be a suction hopper, a collecting hood or a T- represent shaped pipe hood, which is placed for example on the air outlet grille of an electronic device and thereby arranged in the main cooling stream of the device. Fire detection variables are understood to mean physical quantities which are subject to measurable changes in the environment of an incipient fire, for example the ambient temperature, the solid or liquid or gas component in the ambient air or the ambient radiation.
Aus DE 196 05 638 C1 sind ein Verfahren und eine Vorrichtung zum Detektieren von Entstehungsbränden in Räumen oder in elektronischen Geräten bekannt mit einem Detektor zur Erkennung einer Brandkenngröße mit wenigstens eine Zuleitung, die in dem zu überwachenden Raum bzw. an oder in dem zu überwachenden Gerät angeordnet ist und eine Anzahl von Ansaugöffnungen aufweist, durch die kontinuierlich Raumluft bzw. Gerätekühlluftproben zugeführt werden. Eine Auswerteeinheit ist mit einem Detektor elektronisch verbunden und gibt nach vorgegebenen Kriterien ein Signal ab, wenn der Detektor eine Branderkennungsgröße detektiert. Zum Anpassen des wirksamen Querschnittes der Ansaugöffnungen sind diese mit einer Folie überklebt, so daß der wirksame Querschnitt der Ansaugöffnungen verringert wird. Diese Vorrichtung hat den Nachteil, daß sich an den Löchern der Ansaugöffnung vermehrt Staub absetzt. Dieser führt dazu, daß das Detektionssystem zunehmend seine Funktionsfähigkeit verliert. Eine Vorrichtung der eingangs genannten Art, die für den Raumschutz vorgesehen ist und bei der die Zuleitung vorzugsweise aus einer oder mehreren Rohrleitungen besteht, sind die Ansaugöffnungen in den Rohrleitungen in regelmäßigen Abständen auf den ganzen Raum verteilt. Ein solches Verfahren und eine solche Vorrichtung sind beispielsweise aus der DE 295 18 042 U1 oder der DE 33 48 107 C2 bekannt. Allerdings ist es hierbei als nachteilig erkannt worden, daß die Detektionssicherheit einer Brandkenngröße mit zunehmender Entfernung von dem ansaugenden Lüfter aufgrund des in den Rohrleitungen entstehenden Druckabfalls abnimmt. Bei Verwendung des genannten Verfahrens bzw. der Vorrichtung zur Einrichtungsüberwachung, d. h. beispielsweise zur Überwachung von elektronischen Geräten, kann die Zuleitung auch aus einer Rohrleitung bestehen, die dann allerdings deutlich kürzer ist, so daß alle Ansaugöffnungen gleich sein können. Allerdings müssen sie bei unterschiedlicher Anzahl der Ansaugöffnungen unterschiedliche Durchmesser aufweisen, weil die Gesamtansaugfläche nur innerhalb einer kleinen Bandbreite liegen kann.From DE 196 05 638 C1 , a method and a device for detecting incipient fires in rooms or in electronic devices are known with a detector for detecting a fire characteristic with at least one supply line in the space to be monitored or on or in the device to be monitored is arranged and has a number of suction through which room air or device cooling air samples are supplied continuously. An evaluation unit is electronically connected to a detector and emits a signal according to predetermined criteria when the detector detects a fire detection variable. To adjust the effective cross-section of the suction openings they are covered with a film, so that the effective cross-section of the suction is reduced. This device has the disadvantage that settles increasingly dust at the holes of the intake. This leads to the detection system increasingly losing its functionality. A device of the type mentioned, which is provided for the space protection and in which the supply line preferably consists of one or more pipes, the suction in the pipes are distributed at regular intervals throughout the room. Such a method and such a device are known for example from DE 295 18 042 U1 or DE 33 48 107 C2 . However, in this case it has been recognized as disadvantageous that the detection reliability of a fire parameter decreases with increasing distance from the aspirating fan due to the pressure drop occurring in the pipelines. When using the said method or device for device monitoring, ie, for example, for monitoring electronic devices, the supply line may also consist of a pipeline, which is, however, significantly shorter, so that all suction can be the same. However, they must have different diameters with different number of suction because the total suction can only be within a small bandwidth.
Diese müssen nach den physikalischen Gesetzen berechnet werden. Diese
Ansaugöffnungen können auf der Baustelle in die Zuleitung/Zuleitungen gebohrt werden.
Aufgrund der Wanddicke der Zuleitung sammelt sich in der Praxis am Loch der
Ansaugöffnung vermehrt Staub an. Dies führt dann dazu, daß das Detektionssystem
zunehmend seine Funktionsfähigkeit verliert.
Um dieses zu verhindern, ist ein häufiger und hoher Wartungsaufwand notwendig.These must be calculated according to the laws of physics. These suction holes can be drilled on the construction site in the supply / supply lines. Due to the wall thickness of the supply line accumulates in practice at the hole of the intake more dust. This then leads to the detection system increasingly losing its functionality.
To prevent this, a frequent and high maintenance is necessary.
Aufgabe der Erfindung ist es daher, eine Vorrichtung zu entwickeln, die eine hohe Effektivität sowie eine dauerhaft hohe Sensibilität beim Detektieren von Entstehungsbränden über den gesamten Überwachungsbereich aufweist, wobei der Wartungsaufwand gering sein soll.The object of the invention is therefore to develop a device which has a high effectiveness and a permanently high sensitivity when detecting incipient fires over the Has entire monitoring area, the maintenance is to be low.
Diese Aufgabe wird durch eine Vorrichtung nach den Merkmalen des ersten Patentanspruches und ein Verfahren zum Reinigen der Vorrichtung gelöst.This object is achieved by a device according to the features of the first Claim and a method for cleaning the device solved.
Unteransprüche geben vorteilhafte Ausgestaltungen der Erfindung wieder.Subclaims give advantageous embodiments of the invention again.
Die erfindungsgemäße Vorrichtung sieht vor, daß die Ansaugöffnungen in der Zuleitung,
welche einen gleichen Durchmesser aufweisen können und durch Bohren herstellbar sind,
ein gummielastisches Teil mit einer innenliegenden Öffnung mit geringerem Durchmesser
aufweisen. Das gummielastische Teil verschließt die Öffnung der Zuleitung nicht nur
gasdicht, sondern sorgt auch dafür, daß die Folie beidseitig belastbar ist, d. h. durch das
Loch in der Folie kann eine Gasströmung in die Zuleitung und eine Gasströmung aus der
Zuleitung heraus stattfinden, ohne daß das gummielastische Teil Undichtheiten gegenüber
der Zuleitung aufweist.
Nach dem Stand der Technik, bei dem Ansaugbohrungen vorhanden sind, die mit Folie
überklebt sind, ist es nicht möglich, den Gasstrom in die entgegengesetzte Richtung zu
leiten, ohne daß es über eine längere Gebrauchsdauer zu Ablöseerscheinungen der von
außen aufgeklebten Folie kommt. Diese aufgeklebten Folien sind lediglich geeignet, die
Begrenzung eines Gasstromes in die Vorrichtung hinein zuverlässig zu ermöglichen, nicht
aber für einen Gasstrom, der aus der Zuleitung heraus durchgeführt wird.The device according to the invention provides that the suction openings in the supply line, which can have the same diameter and can be produced by drilling, have a rubber-elastic part with an inner opening with a smaller diameter. The rubber-elastic part closes the opening of the supply line not only gas-tight, but also ensures that the film is loadable on both sides, ie through the hole in the film, a gas flow into the supply line and a gas flow from the supply can take place without the rubber-elastic Part has leaks against the supply line.
According to the state of the art, in which there are suction holes which are glued over with foil, it is not possible to direct the gas flow in the opposite direction, without the release film adhering from the outside being peeled off over a longer period of use. These adhesively bonded foils are only suitable for reliably enabling the limitation of a gas flow into the device, but not for a gas flow which is carried out from the supply line.
Vorteilhaft ist es, die Folie am gummielastischen Teil oben anzuordnen.
Für das Reinigen der Vorrichtung werden Staubpartikel, die sich in der Folie angesetzt
haben, dadurch beseitigt, daß mittels eines Lüfters ein Gasstrom von innen nach außen
durch die Öffnung der Folie geblasen wird. Es ist vorteilhaft, diese Umkehr des Luftstromes
in regelmäßigen Abständen durchzuführen. Dazu kann durch eine Zeitschaltuhr der
Luftstrom in vorgegebenen Zeitintervallen von innen gegen die Folie geblasen werden, so
daß eine kontinuierliche Reinigung gegeben ist.It is advantageous to arrange the film on the rubber-elastic part at the top.
For the cleaning of the device dust particles that have been recognized in the film, eliminated by blowing a gas flow from the inside to the outside through the opening of the film by means of a fan. It is advantageous to carry out this reversal of the air flow at regular intervals. For this purpose, the air flow can be blown at predetermined time intervals from the inside against the film by a timer, so that a continuous cleaning is given.
Vorteilhaft ist es, die Folie mit einer Anti-Haft-Beschichtung zu versehen. Weiterhin ist es
vorteilhaft, wenn bestimmte Bereiche der Ansaugöffnungen zusätzlich mit einem Filter
versehen sind. Dazu kann im Bereich der Ansaugöffnungen über das gesamte Rohr ein
Filter eingesetzt werden.
Dadurch wird verhindert, daß Staub in die Zuleitung eindringen kann und
Staubkonzentrationen entstehen können, die explosive Gemische bilden. Die vorliegende
Erfindung bietet zwei Möglichkeiten, die Ansaugöffnungen vor Verschmutzung zu schützen.
Da der Einsatz mit der elastischen Membrane im Außendurchmesser erheblich größer als
die Ansaugbohrungen ist, kann von außen ein Staubfilter über die Ansaugöffnung gesetzt
werden. Hierzu wird ein Staubfilter in die elastische Membrane integriert. Mittels des
Luftstromüberwachungssystems wird der Zustand dieser Staubfilter ständig auf Funktion
überprüft. Der Staubfilter kann auch über das gesamte Rohr der Zuleitung im Bereich der
Ansaugöffnungen gesetzt werden, um die Filteroberfläche zu vergrößern. Die Reinigung der
Filter erfolgt entweder durch Gegenspülung, Reinigung oder Auswechselung.It is advantageous to provide the film with an anti-adhesion coating. Furthermore, it is advantageous if certain areas of the intake openings are additionally provided with a filter. For this purpose, a filter can be used in the region of the intake openings over the entire tube.
This prevents dust from entering the supply line and dust concentrations that form explosive mixtures. The present invention provides two ways to protect the intake ports from contamination. Since the use with the elastic membrane in the outer diameter is considerably larger than the suction holes, a dust filter can be placed on the intake from the outside. For this purpose, a dust filter is integrated into the elastic membrane. By means of the air flow monitoring system, the condition of these dust filters is constantly checked for function. The dust filter can also be placed over the entire pipe of the supply line in the region of the intake openings in order to increase the filter surface. The filters are cleaned either by counter-rinsing, cleaning or replacement.
Der große Vorteil dieser erfindungsgemäßen Lösung liegt darin, daß alle Ansaugbohrungen einen Einsatz bekommen, der im Bereich der Ansaugbohrung eine dünne Membrane mit hohen Gleiteigenschaften hat. Durch diese erfindungsgemäße Lösung wird in hohem Maße eine Staubablagerung im Bereich der Bohrung verhindert. Der weitere, große Vorteil dieser Erfindung liegt darin, daß die dünne Membrane eine gewisse Elastizität aufweist. Sollte sich im Bereich der Ansaugöffnungen durch bestimmte Umwelteigenschaften Staub ablagern, der die Funktionssicherheit der "Vorrichtung zum Detektieren von Entstehungsbränden" beeinträchtigt, kann das Einbringen von Spülluft in die Zuleitung die Ansaugöffnungen problemlos reinigen, da sich durch einen erhöhten Druck die Membrane nach außen wölbt und den Staub dadurch leicht ablöst.The big advantage of this solution according to the invention is that all suction holes get an insert, which in the suction bore with a thin membrane has high sliding properties. By this solution according to the invention is highly prevents dust deposition in the area of the bore. The further, big advantage of this Invention is that the thin membrane has a certain elasticity. Should In the area of the suction through certain environmental properties deposit dust, the the reliability of the "device for detecting incipient fires" impaired, the introduction of purging air in the supply line, the intake ports Clean easily, as the membrane bulges outwards due to increased pressure and thereby easily peel off the dust.
Das Einbringen der Spülluft kann über den Ansauglüfter mittels Druckluft am Luftaustritt oder
über einen Bypass zwischen Ventilator und der ersten Ansaugöffnung erfolgen.
Eine weitere Möglichkeit besteht darin, den Ansauglüfter in seiner Drehrichtung umzukehren.
Damit wird die Zuleitung zu einer Druckleitung und reinigt mit der ausströmenden Luft die
Ansaugöffnungen. Dies kann auch automatisch erfolgen. Hierbei ist aber zu beachten, daß
während der Spülphase die Branddetektion unterbrochen ist.The introduction of the purging air can be done via the intake fan by means of compressed air at the air outlet or via a bypass between the fan and the first suction port.
Another possibility is to reverse the intake fan in its direction of rotation. Thus, the supply line to a pressure line and cleans the suction with the outflowing air. This can also be done automatically. However, it should be noted that the fire detection is interrupted during the rinsing phase.
Im Folgenden wird die Erfindung an einem Ausführungsbeispiel und vier Figuren näher erläutert. Die Figuren zeigen:
- Figur 1:
- Zuleitung mit gummielastischem Teil und Filter über dem gesamten Rohr im Schnitt
- Figur 2:
- Gummielastisches Teil im Schnitt mit innenliegender Folie
- Figur 3:
- Zuleitung mit Ansaugöffnung
- Figur 4:
- Gummielastisches Teil mit Filter und mittig eingebrachter Folie
- FIG. 1:
- Supply line with rubber-elastic part and filter over the entire pipe in section
- FIG. 2:
- Rubber-elastic part in section with inner foil
- FIG. 3:
- Supply line with suction opening
- FIG. 4:
- Rubber-elastic part with filter and centrally placed foil
Die Figur 3 zeigt eine Zuleitung 3 mit ihrer Ansaugöffnung 5. Diese Ansaugöffnung 5 kann
problemlos von Staubteilchen passiert werden, so daß es kontinuierlich zur Verschmutzung
der Detektoren kommt. Weiterhin muß der Querschnitt der Öffnung 5 unter Umständen dem
gewünschten Strömungsquerschnitt angepaßt werden. FIG. 3 shows a
Die Figur 2 zeigt ein gummielastisches Teil 1, welches zum Befestigen eine Nut 8 aufweist,
wobei der Innendurchmesser mit einer Folie 2 versehen ist, die eine Öffnung 4 für den
Luftstrom aufweist. Die Folie 2 ist nach beiden Seiten gleich stark belastbar. Das
gummielastische Teil 1 wird in die Zuleitung 3 eingebracht. Figure 2 shows a rubber-
Die Figur 1 zeigt eine Zuleitung 3, in die ein gummielastisches Teil 1 eingebracht ist, welches
eine Folie 2 mit einer Öffnung 4 an ihrem oberen Rand aufweist. Das ist insofern vorteilhaft,
als keine Ecken zwischen dem gummielastischen Teil 1 und der innenliegenden Folie 2
entstehen, in denen sich verschmutzende Teilchen absetzen können. Gegen grobe Partikel
ist die Öffnung 4 der Folie 2 durch einen Filter 7 um das gesamte Rohr 3 geschützt. 1 shows a
Die Figur 4 zeigt ein gummielastisches Teil 1, welches mit einem Filter 6 über der
Ansaugöffnung 4 versehen ist. Bei allen Teilen, wie sie in den Figuren 1, 2 und 4 dargestellt
sind, wird ein starkes Verschmutzen dadurch verhindert, daß der Luftstrom durch die
Öffnung 4 problemlos umkehrbar ist, was zur Folge hat, daß eventuelle Staubablagerungen
nach außen mitgerissen werden. Weiterhin wird das Eindringen grober Teilchen durch das
Anbringen der Filter 6, 7 verhindert. FIG. 4 shows a rubber-
Die vorliegende Erfindung eröffnet ein weites Spektrum der Einsatzfähigkeit, besonders in
staubgefährdeten Bereichen.
Durch die erfindungsgemäße Ausführung können die Vorteile der Branddetektion mit
Multisensor-Ansaugmeldern durch den Einsatz von Filtern und die komfortable Reinigung
mittels des Membraneinsatzes in staubgefährdeten Bereichen genutzt werden. The present invention opens up a broad spectrum of operational capability, especially in dust-prone areas.
The inventive design, the advantages of fire detection can be used with multi-sensor intake detectors through the use of filters and convenient cleaning by means of the membrane insert in dust hazardous areas.
- 1.1.
- Gummiteilrubber part
- 2.Second
- Dünne HautThin skin
- 3.Third
- Rohr/ZuleitungPipe / supply
- 4.4th
- Ansaugöffnungsuction
- 5.5th
- Öffnung von 3Opening of 3
- 6.6th
- Filter über der AnsaugöffnungFilter over the intake opening
- 7.7th
- Filter über das gesamte RohrFilter over the entire pipe
- 8.8th.
- Nutgroove
Claims (7)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10358531 | 2003-12-13 | ||
| DE10358531A DE10358531A1 (en) | 2003-12-13 | 2003-12-13 | Apparatus and method for detecting incipient fires |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1542188A1 true EP1542188A1 (en) | 2005-06-15 |
| EP1542188B1 EP1542188B1 (en) | 2006-08-02 |
Family
ID=34485375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04028927A Not-in-force EP1542188B1 (en) | 2003-12-13 | 2004-12-07 | Apparatus and process for detecting the formation of a fire |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20050128098A1 (en) |
| EP (1) | EP1542188B1 (en) |
| CN (1) | CN100501788C (en) |
| AT (1) | ATE335266T1 (en) |
| DE (2) | DE10358531A1 (en) |
| RU (1) | RU2004136274A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2469492A1 (en) | 2010-11-29 | 2012-06-27 | Minimax GmbH & Co. KG | Method and device for fire detection in volumes |
| US11543057B2 (en) | 2019-07-09 | 2023-01-03 | Honeywell International Inc. | Universal pipe sleeve junction for an aspirated smoke detection system |
| CN116758694A (en) * | 2023-06-16 | 2023-09-15 | 广东钧逸建筑工程有限公司 | Automatic alarm and ringing device for fire control |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009031099A1 (en) * | 2009-06-29 | 2010-12-30 | Ista International Gmbh | Smoke alarm device and method for checking the contamination of smoke openings |
| CN101618383B (en) * | 2009-07-24 | 2013-01-09 | 上海华魏光纤传感技术有限公司 | Device and method for automatically cleaning flame detector |
| DE202010017579U1 (en) | 2010-11-29 | 2012-03-02 | Minimax Gmbh & Co. Kg | Apparatus for fire detection in volumes |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3765842A (en) * | 1970-07-31 | 1973-10-16 | Cerberus Ag | Fire alarm signalling system |
| US4975688A (en) * | 1988-09-22 | 1990-12-04 | Gonzales Ronald A | Particulate detector disabling and protecting system |
| DE19605842C1 (en) * | 1996-02-16 | 1997-04-24 | Wagner Alarm Sicherung | De-icing device for suction opening of fire-detection system |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT371583B (en) * | 1980-11-24 | 1983-07-11 | Schaechter Friedrich | DEVICE FOR KEEPING THE FLAME SIZE OF A SMALL BURNER OPERATED WITH LIQUID GAS, PREFERABLY A LIGHTER BURNER |
| DD200961A1 (en) * | 1981-10-01 | 1983-06-22 | Werner Bose | SEALING MOUNT FOR CABLE INTRODUCTION TO ELECTRICAL APPLIANCES |
| DE3348107C2 (en) * | 1983-08-30 | 1988-01-21 | Securiton Ag, Zollikofen, Bern, Ch | Smoke suction system of a line smoke alarm |
| US4814766A (en) * | 1987-12-07 | 1989-03-21 | Domingue Willard A | Fire alarm and heat detection system and apparatus |
| US4937562A (en) * | 1987-12-26 | 1990-06-26 | Hochiki Corp. | Moisture-proof ionization smoke detector |
| US5687450A (en) * | 1994-09-10 | 1997-11-18 | Stein & Co. Gmbh | Machine, such as a vacuum cleaner, which exhausts a clean gas, which machine has a protective bumper |
| DE29518042U1 (en) * | 1995-11-14 | 1996-01-25 | Wagner Alarm- und Sicherungssysteme GmbH, 30853 Langenhagen | Fire detector |
| DE19605638C5 (en) * | 1996-02-15 | 2004-10-14 | Wagner Alarm- Und Sicherungssysteme Gmbh | Method and device for detecting incipient fires |
| US6943691B2 (en) * | 2001-01-19 | 2005-09-13 | Bill Chambers | Tamper indicator for a smoke detector |
| DE10125687B4 (en) * | 2001-05-25 | 2005-06-16 | Wagner Alarm- Und Sicherungssysteme Gmbh | Device for detecting sources of fire or gas contamination |
| JP3934423B2 (en) * | 2002-01-11 | 2007-06-20 | ホーチキ株式会社 | Scattered smoke detector |
-
2003
- 2003-12-13 DE DE10358531A patent/DE10358531A1/en not_active Ceased
-
2004
- 2004-12-07 EP EP04028927A patent/EP1542188B1/en not_active Not-in-force
- 2004-12-07 DE DE502004001093T patent/DE502004001093D1/en active Active
- 2004-12-07 AT AT04028927T patent/ATE335266T1/en not_active IP Right Cessation
- 2004-12-10 RU RU2004136274/12A patent/RU2004136274A/en not_active Application Discontinuation
- 2004-12-10 US US11/009,426 patent/US20050128098A1/en not_active Abandoned
- 2004-12-13 CN CNB200410101132XA patent/CN100501788C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3765842A (en) * | 1970-07-31 | 1973-10-16 | Cerberus Ag | Fire alarm signalling system |
| US4975688A (en) * | 1988-09-22 | 1990-12-04 | Gonzales Ronald A | Particulate detector disabling and protecting system |
| DE19605842C1 (en) * | 1996-02-16 | 1997-04-24 | Wagner Alarm Sicherung | De-icing device for suction opening of fire-detection system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2469492A1 (en) | 2010-11-29 | 2012-06-27 | Minimax GmbH & Co. KG | Method and device for fire detection in volumes |
| US11543057B2 (en) | 2019-07-09 | 2023-01-03 | Honeywell International Inc. | Universal pipe sleeve junction for an aspirated smoke detection system |
| US11841096B2 (en) | 2019-07-09 | 2023-12-12 | Honeywell International Inc. | Universal pipe sleeve junction for an aspirated smoke detection system |
| CN116758694A (en) * | 2023-06-16 | 2023-09-15 | 广东钧逸建筑工程有限公司 | Automatic alarm and ringing device for fire control |
| CN116758694B (en) * | 2023-06-16 | 2023-12-08 | 广东钧逸建筑工程有限公司 | Automatic alarm and ringing device for fire control |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE335266T1 (en) | 2006-08-15 |
| EP1542188B1 (en) | 2006-08-02 |
| US20050128098A1 (en) | 2005-06-16 |
| CN100501788C (en) | 2009-06-17 |
| CN1627330A (en) | 2005-06-15 |
| DE10358531A1 (en) | 2005-07-28 |
| DE502004001093D1 (en) | 2006-09-14 |
| RU2004136274A (en) | 2006-05-20 |
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