EP0880765B1 - Verfahren und vorrichtung zum detektieren von entstehungsbränden - Google Patents
Verfahren und vorrichtung zum detektieren von entstehungsbränden Download PDFInfo
- 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
Links
Images
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)
Description
- Fig. 1
- eine schematische Schnittdarstellung einer Vorrichtung zum Detektieren von Entstehungsbränden an der Wand eines Raumes;
- Fig. 2a
- eine Draufsicht auf einen Rohrleitungsabschnitt mit einer Ansaugbohrung;
- Fig. 2b
- den Rohrabschnitt gemäß Fig. 2a, jedoch mit der erfindungsgemäßen Folie über der Ansaugbohrung;
- Fig. 2c
- den Rohrabschnitt gemäß Fig. 2b, jedoch mit angebrachter Banderole;
- Fig. 2d
- eine Draufsicht auf die Folie, welche über die Ansaugbohrung geklebt wird; und
- Fig. 2e
- eine Banderole, wie sie zum Schutz der Folie auf den Rohrabschnitt gemäß Fig. 2c geklebt ist.
Claims (5)
- Verfahren zum Detektieren von Entstehungsbränden in Räumen oder elektronischen Geräten, mit folgenden Verfahrensschritten:a) einem Detektor (1) zum Erkennen einer Brandkenngröße werden über wenigstens eine Zuleitung (15), die in dem zu überwachenden Raum bzw. an oder in dem zu überwachenden Gerät angeordnet ist und eine Anzahl von Ansaugöffnungen (18), aufweist, kontinuierlich Raumluft- bzw. Gerätekühlluftproben zugeführt;b) eine Auswerteeinheit, die mit dem Detektor (1) elektrisch verbunden ist, gibt nach vorgegebenen Kriterien ein Signal ab, wenn der Detektor (1) eine Brandkenngröße detektiert;c) die Ansaugbohrungen (10) in der Zuleitung (15), welche die Ansaugöffnungen (18) bilden, werden mit je einer Folie (16) überklebt, die ein ausgestanztes Loch (21) aufweist, und zwar derart, daßd) das Loch (21) mit der Ansaugbohrung (10) der Zuleitung (15) fluchtet, und daße) der Durchmesser der Löcher (21) in den Folien (16) den wirksamen Querschnitt der Ansaugöffnungen (18) verringert.
- Verfahren nach Anspruch 1, bei dem die Raumluft- bzw. Gerätekühlluftproben dem Detektor aktiv mittels eines Lüfters (2) zugeführt werden,
dadurch gekennzeichnet, daß
mit zunehmender Entfernung vom Lüfter (2) Folien (16) mit größeren Lochquerschnitten verwendet werden. - Vorrichtung zum Detektieren von Entstehungsbränden, mit einem Detektor (1) zum Erkennen einer Brandkenngröße, mit wenigstens einer Zuleitung (15), die mit Ansaugöffnungen (18) versehen ist, deren Querschnitt mit zunehmender Enfernung von einem Lüfter (2) zunimmt, der dem Detektor (1) über die Zuleitung (15) Umgebungsluftproben zuführt,
dadurch gekennzeichnet, daß
die Ansaugbohrungen (10) in der Zuleitung (15), welche die Ansaugöffnungen (18) bilden, alle denselben Durchmesser auf-weisen, und daß jede Ansaugbohrung (10) mit einer Folie (16) abgedeckt ist, die ein ausgestanztes Loch (21) aufweist, das einen vorgegebenen, geringeren Durchmesser als die Ansaug-bohrung (10) aufweist und konzentrisch mit dieser angeordnet ist, so daß die Ansaugöffnung (18) einen reduzierten Quer-schnitt erhält. - Vorrichtung zum Detektieren von Entstehungsbränden, mit einem Detektor (1) zum Erkennen einer Brandkenngröße, mit wenigstens einer Zuleitung (15), die mit Ansaugöffnungen (18) versehen ist, und mit einem Lüfter (2), der dem Detektor (1) über die Zuleitung (15) Umgebungsluftproben zuführt,
dadurch gekennzeichnet, daß
die Ansaugbohrungen (10) in der Zuleitung (15), welche die Ansaugöffnungen (18) bilden, alle denselben Durchmesser aufweisen, und daß jede Ansaugbohrung (10) mit einer Folie (16) abgedeckt ist, die ein ausgestanztes Loch (21) aufweist, das einen vorgegebenen, geringeren Durchmesser als die Ansaugbohrung (10) aufweist und konzentrisch mit dieser angeordnet ist, so daß die Ansaugöffnung (18) einen reduzierten Querschnitt erhält. - Vorrichtung nach einem der Ansprüche 3 bis 4, bei der die Zuleitung (15) eine Rohrleitung ist,
dadurch gekennzeichnet, daß
die den Querschnitt der Ausaugöffnung (18) reduzierende Folie (16) mittels einer Banderole (17) auf der Rohrleitung befestigt ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19605638A DE19605638C5 (de) | 1996-02-15 | 1996-02-15 | Verfahren und Vorrichtung zum Detektieren von Entstehungsbränden |
DE19605638 | 1996-02-15 | ||
PCT/EP1997/000682 WO1997030427A1 (de) | 1996-02-15 | 1997-02-13 | Verfahren und vorrichtung zum detektieren von entstehungsbränden |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0880765A1 EP0880765A1 (de) | 1998-12-02 |
EP0880765B1 true EP0880765B1 (de) | 2000-01-05 |
Family
ID=7785507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97903277A Expired - Lifetime EP0880765B1 (de) | 1996-02-15 | 1997-02-13 | Verfahren und vorrichtung zum detektieren von entstehungsbränden |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP0880765B1 (de) |
AT (1) | ATE188570T1 (de) |
CZ (1) | CZ287960B6 (de) |
DE (2) | DE19605638C5 (de) |
ES (1) | ES2143298T3 (de) |
GR (1) | GR3033075T3 (de) |
HU (1) | HU220957B1 (de) |
NO (1) | NO328850B1 (de) |
PL (1) | PL183720B1 (de) |
PT (1) | PT880765E (de) |
SK (1) | SK284815B6 (de) |
WO (1) | WO1997030427A1 (de) |
Cited By (2)
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)
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 |
EP1549916A1 (de) * | 2002-10-07 | 2005-07-06 | Wagner Alarm- und Sicherungssysteme GmbH | Vorrichtung zur bestimmung von strömungsgrössen eines fluids sowie verfahren zum betrieb einer solchen vorrichtung |
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)
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 |
-
1996
- 1996-02-15 DE DE19605638A patent/DE19605638C5/de not_active Expired - Fee Related
-
1997
- 1997-02-13 SK SK1100-98A patent/SK284815B6/sk not_active IP Right Cessation
- 1997-02-13 AT AT97903277T patent/ATE188570T1/de active
- 1997-02-13 ES ES97903277T patent/ES2143298T3/es not_active Expired - Lifetime
- 1997-02-13 WO PCT/EP1997/000682 patent/WO1997030427A1/de active IP Right Grant
- 1997-02-13 CZ CZ19982579A patent/CZ287960B6/cs not_active IP Right Cessation
- 1997-02-13 PL PL97328301A patent/PL183720B1/pl not_active IP Right Cessation
- 1997-02-13 DE DE59700972T patent/DE59700972D1/de not_active Expired - Lifetime
- 1997-02-13 HU HU9901013A patent/HU220957B1/hu not_active IP Right Cessation
- 1997-02-13 EP EP97903277A patent/EP0880765B1/de not_active Expired - Lifetime
- 1997-02-13 PT PT97903277T patent/PT880765E/pt unknown
-
1998
- 1998-08-14 NO NO19983736A patent/NO328850B1/no not_active IP Right Cessation
-
2000
- 2000-03-28 GR GR20000400764T patent/GR3033075T3/el unknown
Cited By (3)
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 |
---|---|
SK110098A3 (en) | 2000-02-14 |
PL328301A1 (en) | 1999-01-18 |
PL183720B1 (pl) | 2002-07-31 |
ES2143298T3 (es) | 2000-05-01 |
SK284815B6 (sk) | 2005-12-01 |
HU220957B1 (hu) | 2002-07-29 |
DE59700972D1 (de) | 2000-02-10 |
PT880765E (pt) | 2000-06-30 |
DE19605638C5 (de) | 2004-10-14 |
EP0880765A1 (de) | 1998-12-02 |
HUP9901013A2 (hu) | 1999-07-28 |
CZ257998A3 (cs) | 1999-01-13 |
HUP9901013A3 (en) | 1999-11-29 |
DE19605638C1 (de) | 1997-06-12 |
GR3033075T3 (en) | 2000-08-31 |
CZ287960B6 (cs) | 2001-03-14 |
NO983736D0 (no) | 1998-08-14 |
NO983736L (no) | 1998-10-14 |
NO328850B1 (no) | 2010-05-31 |
ATE188570T1 (de) | 2000-01-15 |
WO1997030427A1 (de) | 1997-08-21 |
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