DE3348107C2 - Smoke suction system of a line smoke alarm - Google Patents
Smoke suction system of a line smoke alarmInfo
- Publication number
- DE3348107C2 DE3348107C2 DE3348107A DE3348107A DE3348107C2 DE 3348107 C2 DE3348107 C2 DE 3348107C2 DE 3348107 A DE3348107 A DE 3348107A DE 3348107 A DE3348107 A DE 3348107A DE 3348107 C2 DE3348107 C2 DE 3348107C2
- Authority
- DE
- Germany
- Prior art keywords
- smoke
- heating
- smoke suction
- line
- suction
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
- G01F1/696—Circuits therefor, e.g. constant-current flow meters
- G01F1/698—Feedback or rebalancing circuits, e.g. self heated constant temperature flowmeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/10—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables
- G01P5/12—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables using variation of resistance of a heated conductor
-
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/02—Monitoring continuously signalling or alarm systems
- G08B29/04—Monitoring of the detection circuits
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Aviation & Aerospace Engineering (AREA)
- Computer Security & Cryptography (AREA)
- Fire-Detection Mechanisms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
Die Erfindung betrifft ein Rauchansaugsystem eines mehrpunktförmigen Linien-Rauchmelders mit einer Ein richtung zur Überwachung der Geschwindigkeit des ange saugten Gases und einer Mehrzahl von Rauchansaugstel len. The invention relates to a smoke aspiration system multi-point line smoke detector with an on direction for monitoring the speed of the sucked gas and a plurality of smoke aspirators len.
Mehrpunktförmige Linien-Rauchmelder haben die Aufgabe, aus einem zu überwachenden Raum kontinuierlich Luftpro ben über ein mit Ansauglöchern versehenes Rohrleitungs netz zu entnehmen und diese einem Rauchmelder zuzufüh ren. Die Funktionssicherheit solcher Systeme hängt naturgemäß von einer dauernden Luftzufuhr zum Rauchmel der ab. Diese Luftzufuhr zum Rauchmelder wird durch Vereisung der Ansaugöffnungen gefährdet.Multi-point line smoke detectors have the task from a room to be monitored continuously via a pipe with suction holes network and feed it to a smoke detector ren. The functional reliability of such systems depends naturally from a constant supply of air to the smoke alarm from the. This air supply to the smoke detector is blocked by Icing of the intake openings at risk.
Aus der DE-OS 2 65 52 326 ist eine Vorrichtung bekannt, bei der die Strömungsveränderung in Gasen zur Erkennung einer Vereisung herangezogen wird. Dabei ist auch eine Heizeinrichtung zur Entfernung des entstehenden Eises an der Meßstelle vorgesehen.From DE-OS 2 65 52 326 a device is known where the flow change in gases for detection icing is used. There is also one Heating device to remove the ice provided at the measuring point.
Weiter ist aus der DE-AS 10 61 627 eine Vorrichtung bekannt, bei der die Luft aus einer Mehrzahl von Rauch ansaugstellen überwacht wird.Furthermore, from DE-AS 10 61 627 is a device known in which the air consists of a plurality of smoke suction points is monitored.
Der Erfindung liegt die Aufgabe zugrunde, ein Rauchan saugsystem der eingangs genannten Art zu schaffen, bei dem eine Vereisung zuverlässig ausgeschlossen wird.The invention has for its object a Rauchan to create suction system of the type mentioned at which reliably prevents icing.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß jede Rauchansaugstelle mit einem Heizwiderstand verse hen ist, wobei die in Reihe geschalteten Heizwiderstän de mittels einer elektrischen Leitung mit der Einrich tung verbunden sind und von dieser bei Verstopfung der Rauchansaugstellen durch Vereisung mit einem Heizstrom beaufschlagt werden.According to the invention, this object is achieved in that each smoke suction point with a heating resistor hen is, with the heating resistors connected in series de by means of an electrical line with the device tion are connected and by this in case of constipation of the Smoke suction points due to icing with a heating current be charged.
Vorzugsweise ist vorgesehen, daß jede Rauchansaugstelle ein zwei Rohrteile miteinander verbindendes T-Stück aufweist, an das ein mit einer Heizfolie versehenes Zwischenstück angeschraubt ist, wobei an das Zwischen stück wiederum eine mit einer Ansaugöffnung versehene Verschlußkappe angeschraubt ist.It is preferably provided that each smoke suction point a T-piece connecting two pipe parts has to which a provided with a heating foil Intermediate piece is screwed, being on the intermediate piece in turn provided with a suction opening Screw cap is screwed on.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der Beschreibung, in der ein Ausführungsbei spiel der Erfindung anhand einer Zeichnung erläutert wird. Dabei zeigtFurther features and advantages of the invention result derive from the description in which an execution example game of the invention explained with reference to a drawing becomes. It shows
Fig. 1 den Aufbau eines Rauchansaugsytems eines mehrpunktförmigen Linien-Rauchmel ders in einer schematischen Darstellung, Fig. 1 shows the structure of a Rauchansaugsytems a more point-shaped line DERS smoke alarms in a schematic representation,
Fig. 2 die Heizungsanordnung der Ansaugstellen in schematischer Darstellung, und Fig. 2 shows the heating arrangement of the suction points in a schematic representation, and
Fig. 3 eine der Ansaugstellen. Fig. 3 one of the suction points.
Das Rauchansaugsystem besteht aus einer Einrichtung 1 zur Überwachung der Geschwindigkeit des angesaugten Gases, bestehend aus einem Ventilator 2, einem optischen Rauchmelder 3 und einer gedruckten Schaltung 4. An die Einrichtung 1 ist ein Rohrnetz 5 angeschlossen, das mit mehreren Ansaugstellen in der Form kleiner Öffnungen 6 versehen ist. Dieses Rohrnetz kann in Form eines I, U, H, T oder eines Kreuzes ausgebildet sein.The smoke aspiration system consists of a device 1 for monitoring the speed of the aspirated gas, consisting of a fan 2 , an optical smoke detector 3 and a printed circuit 4 . A pipe network 5 is connected to the device 1 and is provided with several suction points in the form of small openings 6 . This pipe network can be in the form of an I, U, H, T or a cross.
Der vom Ventilator 2 erzeugte Unterdruck bewirkt ein Ansaugen von Luft von den Ansaugstellen 6 zum Rauchmel der in der Einrichtung 1, die bei einer bestimmten Rauchkonzentration der Ansaugluft einen Alarm an eine Brandmeldezentrale übermittelt.The negative pressure generated by the fan 2 causes air to be sucked in from the suction points 6 to the smoke alarm in the device 1 , which transmits an alarm to a fire alarm control panel when the intake air has a certain smoke concentration.
In Fig. 2 ist schematisch die Heizungsanordnung für die Ansaugstellen dargestellt. An jeder Ansaugstelle 6 des Rohrnetzes 5 ist ein Heizwiderstand 33 angeordnet. Die Heizwiderstände sind in Reihe geschaltet und mit tels einer elektrischen Zuleitung 35 an die erfindungs gemäße Vorrichtung in der Einrichtung 1 angeschlossen.In Fig. 2, the heating arrangement for the suction points is shown schematically. A heating resistor 33 is arranged at each suction point 6 of the pipe network 5 . The heating resistors are connected in series and connected by means of an electrical supply line 35 to the device according to the Invention in the device 1 .
In Fig. 3 ist ein Detail der Heizanordnung nach Fig. 2 dargestellt. Ein T-Stück 31 verbindet zwei Rohrteile 5 miteinander. An das T-Stück 31 ist ein Zwischenstück 32 angeschraubt, in welches eine Heizfolie 33 angeord net ist. An das Zwischenstück 32 wiederum ist eine mit einer Ansaugöffnung 36 versehene Verschlußkappe 34 angeschraubt. FIG. 3 shows a detail of the heating arrangement according to FIG. 2. A T-piece 31 connects two pipe parts 5 to one another. At the T-piece 31 , an intermediate piece 32 is screwed, in which a heating foil 33 is net angeord. A closure cap 34 provided with a suction opening 36 is in turn screwed onto the intermediate piece 32 .
Eine Vereisung der Ansaugstellen 6 wird von der Ein richtung 1, die die Geschwindigkeit des angesaugten Gases überwacht, festgestellt. Bei Unterschreiten einer vorgegebenen Mindestgeschwindigkeit sorgt die Einrich tung 1 dafür, daß die Heizwiderstände 33 an den Ansaug stellen beheizt werden, wodurch die aufgetretene Verei sung beseitigt wird.Icing of the suction points 6 is determined by a device 1 , which monitors the speed of the sucked gas. When falling below a predetermined minimum speed, the Einrich device 1 ensures that the heating resistors 33 to the suction are heated, whereby the occurring Verei solution is eliminated.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3348107A DE3348107C2 (en) | 1983-08-30 | 1983-08-30 | Smoke suction system of a line smoke alarm |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3331203A DE3331203C2 (en) | 1983-08-30 | 1983-08-30 | Device for monitoring the velocity of a gas flow in a channel |
DE3348107A DE3348107C2 (en) | 1983-08-30 | 1983-08-30 | Smoke suction system of a line smoke alarm |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3348107C2 true DE3348107C2 (en) | 1988-01-21 |
Family
ID=25813581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3348107A Expired DE3348107C2 (en) | 1983-08-30 | 1983-08-30 | Smoke suction system of a line smoke alarm |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3348107C2 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19605842C1 (en) * | 1996-02-16 | 1997-04-24 | Wagner Alarm Sicherung | De-icing device for suction opening of fire-detection system |
DE19605638C1 (en) * | 1996-02-15 | 1997-06-12 | Wagner Alarm Sicherung | Fire detection method for room or equipment housing |
DE19730929A1 (en) * | 1997-07-18 | 1999-01-21 | Hekatron Gmbh | Signaling device for smoke and / or gas detection |
DE10358531A1 (en) * | 2003-12-13 | 2005-07-28 | Minimax Gmbh & Co. Kg | Apparatus and method for detecting incipient fires |
DE102004020489B4 (en) * | 2004-04-26 | 2007-06-28 | Minimax Gmbh & Co. Kg | Fire detector for use in outdoor atmosphere |
EP1811478A1 (en) | 2006-01-07 | 2007-07-25 | Hekatron Vertriebs GmbH | Fire detection method and device |
DE102004032294B4 (en) * | 2004-07-03 | 2012-02-09 | Minimax Gmbh & Co. Kg | Heated fire alarm |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1061627B (en) * | 1956-02-16 | 1959-07-16 | Pyrene Co Ltd | United smoke tracer and fire extinguishing system |
DE2652326A1 (en) * | 1975-11-19 | 1977-05-26 | Lucas Industries Ltd | DEVICE FOR DISPLAYING THE LEVEL OF ICING |
-
1983
- 1983-08-30 DE DE3348107A patent/DE3348107C2/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1061627B (en) * | 1956-02-16 | 1959-07-16 | Pyrene Co Ltd | United smoke tracer and fire extinguishing system |
DE2652326A1 (en) * | 1975-11-19 | 1977-05-26 | Lucas Industries Ltd | DEVICE FOR DISPLAYING THE LEVEL OF ICING |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19605638C1 (en) * | 1996-02-15 | 1997-06-12 | Wagner Alarm Sicherung | Fire detection method for room or equipment housing |
WO1997030427A1 (en) * | 1996-02-15 | 1997-08-21 | Wagner Alarm- Und Sicherungssysteme Gmbh | Method and device for detecting incipient fires |
DE19605638C5 (en) * | 1996-02-15 | 2004-10-14 | Wagner Alarm- Und Sicherungssysteme Gmbh | Method and device for detecting incipient fires |
DE19605842C1 (en) * | 1996-02-16 | 1997-04-24 | Wagner Alarm Sicherung | De-icing device for suction opening of fire-detection system |
WO1997030428A1 (en) * | 1996-02-16 | 1997-08-21 | Wagner Alarm- Und Sicherungssysteme Gmbh | Method and device for de-icing an intake aperture |
DE19730929A1 (en) * | 1997-07-18 | 1999-01-21 | Hekatron Gmbh | Signaling device for smoke and / or gas detection |
DE19730929C2 (en) * | 1997-07-18 | 1999-12-30 | Hekatron Gmbh | Locking system for smoke and / or fire gas detection |
DE10358531A1 (en) * | 2003-12-13 | 2005-07-28 | Minimax Gmbh & Co. Kg | Apparatus and method for detecting incipient fires |
DE102004020489B4 (en) * | 2004-04-26 | 2007-06-28 | Minimax Gmbh & Co. Kg | Fire detector for use in outdoor atmosphere |
DE102004032294B4 (en) * | 2004-07-03 | 2012-02-09 | Minimax Gmbh & Co. Kg | Heated fire alarm |
EP1811478A1 (en) | 2006-01-07 | 2007-07-25 | Hekatron Vertriebs GmbH | Fire detection method and device |
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Legal Events
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Q172 | Divided out of (supplement): |
Ref country code: DE Ref document number: 3331203 |
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8101 | Request for examination as to novelty | ||
8110 | Request for examination paragraph 44 | ||
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D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |