EP0880765B1 - Procede et dispositif pour detecter des incendies naissants - Google Patents

Procede et dispositif pour detecter des incendies naissants Download PDF

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Publication number
EP0880765B1
EP0880765B1 EP97903277A EP97903277A EP0880765B1 EP 0880765 B1 EP0880765 B1 EP 0880765B1 EP 97903277 A EP97903277 A EP 97903277A EP 97903277 A EP97903277 A EP 97903277A EP 0880765 B1 EP0880765 B1 EP 0880765B1
Authority
EP
European Patent Office
Prior art keywords
intake
detector
supply line
section
room
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.)
Expired - Lifetime
Application number
EP97903277A
Other languages
German (de)
English (en)
Other versions
EP0880765A1 (fr
Inventor
Ernst Werner Wagner
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.)
Wagner Group GmbH
Original Assignee
Wagner Alarm- und Sicherungssysteme GmbH
Priority date (The priority date 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 date listed.)
Filing date
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Application filed by Wagner Alarm- und Sicherungssysteme GmbH filed Critical Wagner Alarm- und Sicherungssysteme GmbH
Publication of EP0880765A1 publication Critical patent/EP0880765A1/fr
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Classifications

    • 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 present invention relates both to a method and also a device for detecting incipient fires in rooms or electronic devices.
  • a fire parameter at least one supply line in the room to be monitored or is arranged on or in the device to be monitored and has a number of suction openings, continuously Room air or device cooling air samples supplied, and a Evaluation unit that is electrically connected to the detector is a signal according to predetermined criteria when the Detector detects a fire parameter.
  • the device mentioned contains a detector to detect a fire parameter, at least one supply line, which are provided with suction openings is, and a fan that leads the detector via the feed line Supplies ambient air samples.
  • Both methods and devices of this type are known and serve the earliest detection of fires in their development phase.
  • Typical areas of application are either Rooms with high quality or important facilities, such as for example rooms with computer systems in banks or the like, or but the computer systems themselves.
  • the indoor air or the device cooling air constantly representative subsets removed and via at least one feed line to the detector Detection of a fire parameter supplied.
  • feed lines is preferred, but not to understand only pipes that are used for room protection are attached, for example, under the ceiling and to an air inlet opening in the housing of the detector lead, and which the room or device cooling air through suction openings suck in, which is provided in the pipes are.
  • the feed line can also be an intake funnel, a Collection hood or a T-shaped pipe hood, which for example on the air outlet grille of an electronic Placed on the device and thereby in the main cooling air flow of the device is arranged.
  • fire parameter includes physical parameters understood that can be measured in the vicinity of an incipient fire Subject to change, e.g. the ambient temperature, the solid or liquid or gas content in the Ambient air (formation of smoke particles or smoke aerosols or formation of steam) or the ambient radiation.
  • the supply line can also come from a Pipeline, which is then significantly shorter, so that all intake openings can be the same. Indeed they have to with different numbers of intake openings have different diameters because of the total suction area because of the sensitive airflow monitoring only can be within a small range. Thus it results there is a need for a large number of different intake opening diameters, which is accurate to a tenth of a millimeter have to vote what a corresponding effort at the Assembly.
  • the present invention addresses these disadvantages as whose task is considered to be a high effectiveness of the Process and a high sensitivity of the device for Detect fires across the entire catchment area to achieve and at the same time easy assembly of the Allow device.
  • This task is carried out in a method of the aforementioned Type solved in that the suction holes in the supply line, which form the suction openings, covered with a film which has a punched hole, in such a way that the hole is aligned with the suction hole of the supply line, and that the diameter of the holes in the foils the effective Cross-section of the suction openings reduced.
  • the great advantage of this solution according to the invention is that that all suction holes have the same diameter can, and that the effective cross section of the suction openings on site, i.e. during assembly, to the respective requirements can be adjusted.
  • This is a big advantage in that as standard leads can be used as a result, their suction holes on inexpensive and much more accurate Way are prefabricated in the factory.
  • holes drilled at the place of assembly have the disadvantage that they have a burr, which is due to the air turbulence generated by this, the particle entry and not least because the increased noise from the air flowing past is desirable.
  • the films have to reduce of the intake cross section the advantage that they are not "whistle", as for example perforated disks Plastic or metal would do.
  • the object underlying the present invention will further by two alternative embodiments of the device solved the type mentioned.
  • the first embodiment takes the cross section of the suction openings increasing distance from the fan too, though the suction holes in the supply line, which form the suction openings, all have the same diameter by each suction hole is covered with a film that has a punched hole has a predetermined, smaller diameter than has the suction hole and concentric with it is arranged so that the suction opening is reduced Cross section.
  • a reduction in Cross-section of the suction openings with the same diameter of the suction bores provided in the supply line by each suction hole is in turn covered with a film that has a punched hole that has a predetermined, has a smaller diameter than the suction bore and is arranged concentrically with this, so that the suction opening receives a reduced cross section.
  • the first of the devices mentioned is on room protection tailored.
  • the second described Device is based on facility monitoring tailored where all the suction openings are the same may be, but depending on the number of intake openings must have different diameters to the total suction area within a certain predetermined range hold. It is also in this embodiment of the device It is advantageous that all suction bores in the supply line are first have the same diameter, which is then at the location of the Assembly by gluing the foils to the special requirements is adjusted.
  • the feed line in Shape of a pipeline by the meter with the same throughout large suction holes made at the place of assembly on the cut required length and then with regard to the (indirect) length-dependent diameter of the intake openings with the slides to the requirements of the respective location be adjusted.
  • suction holes in the supply line which are the suction openings form, all have the same diameter, and that each suction hole with the one already described above Foil is covered in such a way that the resulting suction opening receives a reduced cross section.
  • the feed line is a pipeline
  • the reducing the cross section of the suction opening Foil on the pipeline using a banderole is attached.
  • This banderole can be striking, for example have red border strips so that the suction points on the Pipeline are clearly marked.
  • Fig. 1 shows the housing 9 of a fire detector 1, which on the Wall 13 of a corner of the room is attached.
  • a supply line 15 in the form of a pipe with clamps 11 attached, which is on the vertical wall of the room to the Detector housing 9 continues.
  • the pipeline 15 has in Ceiling area suction openings 18 through which representative Partial quantities of the rising room air in the pipeline 15 arrive.
  • the pipeline is at its free end 15 closed by a cap 12. In the direction of flow the pipeline opens through an air inlet opening 4 in the housing 9 of the detector 1.
  • the arrows in the pipeline 15 indicate the direction of the air flow which the sucked in room air through the air inlet opening 4 in the Housing 9 leads.
  • the housing 9 of the fire detector 1 points as in this connection essential components a sensor 3 for Detect a fire parameter and a fan 2 for Aspirate the room air samples.
  • the sensor 3 has upper area louvers 6, 7 through which the fan 2 draws the air stream 8.
  • An air flow sensor 14 monitors this the continuity of the air flow.
  • FIG. 2a to c each show a section of the pipeline 15 with a single suction bore 10, of which, however a whole series of other identical suction holes Provided distributed over the entire length of the pipeline 15 are.
  • the suction hole 10 covered with a film 16, which is a punched Has hole 21 which is aligned with the suction bore 10 and reduces the effective cross section of the suction opening.
  • Fig. 2c is a film with striking with the film 16 Edge strips glued and partially around the pipe section 15 wrapped, ensuring a secure hold and protection of the Slide 16 is achieved.
  • the band has a punched out Hole 19 on what after sticking the banderole with the hole 21 in the film 16 and thus also with the suction bore 10 in the pipe section 15 is aligned.
  • 2d shows a top view of a circular film 16, which is a concentrically punched hole 21 predetermined Size (here: 7 mm).
  • Fig. 2e shows a plan view of the band 17 with the centrally punched hole 19 and a striking on both sides Edge strips 20.
  • Hole 19 can have a standard diameter have that of the suction holes in the Pipeline 15 corresponds.
  • Both the film 16 and the banderole 17 are self-adhesive on the back educated.
  • one Apparatus for detecting incipient fires can be the consistently identical suction bores 10 in the pipeline 15, which form the suction openings 18 (FIG. 1) simple and very effective way to each Adapt needs: in space protection, where it is according to the invention it is provided that the cross section of the suction openings 18 with increasing distance from the fan 2, the Diameter of the suction bores 10 in the vicinity of the fan 2 reduced to a certain level, and with increasing Distance from the fan 2, foils 16 are larger Hole cross sections used.

Landscapes

  • 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)
  • Control Of Combustion (AREA)

Claims (5)

  1. Procédé pour détecter des incendies naissants, dans des pièces ou dans des appareils électroniques, comportant les étapes opératoires suivantes :
    a) des échantillons de l'air de la pièce ou des échantillons de l'air de refroidissement d'appareils sont envoyés en continu à un détecteur (1) servant à identifier une grandeur caractéristique d'un incendie, par l'intermédiaire d'au moins une ligne d'amenée (15), qui est disposée dans la pièce à contrôler ou sur ou dans l'appareil à contrôler et possède un certain nombre d'ouvertures d'aspiration (18) ;
    b) une unité d'exploitation, qui est reliée électriquement au détecteur (1), délivre selon des critères prédéterminés un signal lorsque le détecteur (1) détecte une grandeur caractéristique d'un incendie;
    caractérisé par les étapes opératoires suivantes:
    c) des feuilles respectives (16) qui comportent un trou découpé (21), sont collées par dessus les perçages d'aspiration (10) situés dans la canalisation d'amenée (15), qui forment les ouvertures d'aspiration (18), et de ce telle sorte que,
    d) le trou (21) est aligné avec le perçage d'aspiration (10) de la canalisation d'amenée (15), et que
    e) le diamètre des trous (21) formés dans les feuilles (16) réduit la section transversale efficace des ouvertures d'aspiration (18).
  2. Procédé selon la revendication 1, dans lequel les échantillons de l'air de la pièce ou de l'air de refroidissement des appareils sont envoyés d'une manière active au détecteur à l'aide d'un ventilateur (2) , caractérisé en ce que lorsque l'éloignement par rapport au ventilateur (2) augmente, on utilise des feuilles (16) possédant des trous ayant des sections transversales plus grandes.
  3. Dispositif pour détecter des incendies naissants, comportant un détecteur (1) servant à identifier une grandeur caractéristique d'un incendie, comportant au moins une ligne d'amenée (15), qui comporte des ouvertures d'aspiration (18), dont la section transversale augmente lorsque l'éloignement augmente par rapport à un ventilateur (2) qui envoie les échantillons de l'air ambiant au détecteur (1) par l'intermédiaire de la canalisation d'amenée (15) , caractérisé en ce que les perçages d'aspiration (10), qui sont situés dans la canalisation d'amenée (15) et forment les ouvertures d'aspiration (18), possèdent tous le même diamètre et que chaque perçage d'aspiration (10) est recouvert par une feuille (16), qui possède un trou découpé (21) qui a un diamètre prédéterminé inférieur à celui du perçage d'aspiration (10) et est disposé concentriquement à ce dernier de sorte que l'ouverture d'aspiration (18) possède une section transversale réduite.
  4. Dispositif pour détecter des incendies naissants, comportant un détecteur (1) servant à identifier une grandeur caractéristique d'un incendie, comportant au moins une canalisation d'amenée (15), qui comporte des ouvertures d'aspiration (18), et un ventilateur (2), qui envoie des échantillons de l'air ambiant au détecteur (1) par l'intermédiaire d'une canalisation d'amenée (15), caractérisé en ce que les perçages d'aspiration (10), qui sont situés dans la canalisation d'amenée (15) et forment les ouvertures d'aspiration (18), possèdent tous le même diamètre et que chaque perçage d'aspiration (10) est recouvert par une feuille (16), qui possède un trou découpé (21) qui a un diamètre prédéterminé intérieur à celui du perçage d'aspiration (10) et est disposé concentriquement à ce dernier de sorte que l'ouverture d'aspiration (18) possède une section transversale réduite.
  5. Dispositif selon l'une des revendications 3 à 4, dans lequel la canalisation d'amenée (15) est une canalisation tubulaire, caractérisé en ce que la feuille (16), qui réduit la section transversale de l'ouverture d'aspiration (18), est fixée sur la conduite tubulaire au moyen d'une bande (17).
EP97903277A 1996-02-15 1997-02-13 Procede et dispositif pour detecter des incendies naissants Expired - Lifetime EP0880765B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19605638 1996-02-15
DE19605638A DE19605638C5 (de) 1996-02-15 1996-02-15 Verfahren und Vorrichtung zum Detektieren von Entstehungsbränden
PCT/EP1997/000682 WO1997030427A1 (fr) 1996-02-15 1997-02-13 Procede et dispositif pour detecter des incendies naissants

Publications (2)

Publication Number Publication Date
EP0880765A1 EP0880765A1 (fr) 1998-12-02
EP0880765B1 true EP0880765B1 (fr) 2000-01-05

Family

ID=7785507

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97903277A Expired - Lifetime EP0880765B1 (fr) 1996-02-15 1997-02-13 Procede et dispositif pour detecter des incendies naissants

Country Status (12)

Country Link
EP (1) EP0880765B1 (fr)
AT (1) ATE188570T1 (fr)
CZ (1) CZ287960B6 (fr)
DE (2) DE19605638C5 (fr)
ES (1) ES2143298T3 (fr)
GR (1) GR3033075T3 (fr)
HU (1) HU220957B1 (fr)
NO (1) NO328850B1 (fr)
PL (1) PL183720B1 (fr)
PT (1) PT880765E (fr)
SK (1) SK284815B6 (fr)
WO (1) WO1997030427A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100501788C (zh) * 2003-12-13 2009-06-17 鞍点有限公司及两合公司 用于检测着火的装置和用于清洁该装置的方法
US11543057B2 (en) 2019-07-09 2023-01-03 Honeywell International Inc. Universal pipe sleeve junction for an aspirated smoke detection system

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19730929C2 (de) * 1997-07-18 1999-12-30 Hekatron Gmbh Feststellanlage zur Rauch- und/oder Brandgaserkennung
DE10114729A1 (de) 2001-03-22 2002-10-02 Rittal Gmbh & Co Kg Schaltschrank mit einer Rauchmeldeeinrichtung
DE10251891B4 (de) * 2002-10-07 2007-07-26 Wagner Alarm- Und Sicherungssysteme Gmbh Vorrichtung zur Bestimmung von Strömungsgrößen sowie Verfahren zum Betrieb einer solchen Vorrichtung
JP2006502392A (ja) * 2002-10-07 2006-01-19 ワグナー アラーム− ウント ジッヒャルンクスシャテム ゲゼルシャフト ミット ベシュレンクテル ハフツング 流体のフローパラメータ決定装置およびその動作方法
ES2265227B1 (es) * 2004-06-29 2007-12-16 Juan Valls Montava Sistema de boquillas para instalaciones de deteccion de incendios por aspiracion.
DE102010056394A1 (de) 2010-12-28 2012-06-28 Linde Aktiengesellschaft Löscheinrichtung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3106822C2 (de) * 1981-02-24 1982-12-23 Hans 7614 Gengenbach Schneekloth Verteilungsrohr
DE3348107C2 (en) * 1983-08-30 1988-01-21 Securiton Ag, Zollikofen, Bern, Ch Smoke suction system of a line smoke alarm
DE29518042U1 (de) * 1995-11-14 1996-01-25 Wagner Alarm- und Sicherungssysteme GmbH, 30853 Langenhagen Branddetektor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100501788C (zh) * 2003-12-13 2009-06-17 鞍点有限公司及两合公司 用于检测着火的装置和用于清洁该装置的方法
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

Also Published As

Publication number Publication date
PL183720B1 (pl) 2002-07-31
NO328850B1 (no) 2010-05-31
GR3033075T3 (en) 2000-08-31
NO983736L (no) 1998-10-14
HUP9901013A2 (hu) 1999-07-28
SK284815B6 (sk) 2005-12-01
PL328301A1 (en) 1999-01-18
DE19605638C5 (de) 2004-10-14
DE59700972D1 (de) 2000-02-10
DE19605638C1 (de) 1997-06-12
CZ287960B6 (cs) 2001-03-14
WO1997030427A1 (fr) 1997-08-21
HUP9901013A3 (en) 1999-11-29
SK110098A3 (en) 2000-02-14
ES2143298T3 (es) 2000-05-01
ATE188570T1 (de) 2000-01-15
NO983736D0 (no) 1998-08-14
EP0880765A1 (fr) 1998-12-02
HU220957B1 (hu) 2002-07-29
PT880765E (pt) 2000-06-30
CZ257998A3 (cs) 1999-01-13

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