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EP0250388A1 - Method for detecting and extinguishing duct fires, and apparatus for carrying out this method - Google Patents

Method for detecting and extinguishing duct fires, and apparatus for carrying out this method Download PDF

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Publication number
EP0250388A1
EP0250388A1 EP87870083A EP87870083A EP0250388A1 EP 0250388 A1 EP0250388 A1 EP 0250388A1 EP 87870083 A EP87870083 A EP 87870083A EP 87870083 A EP87870083 A EP 87870083A EP 0250388 A1 EP0250388 A1 EP 0250388A1
Authority
EP
European Patent Office
Prior art keywords
shutter
conduit
fuses
triggering
link
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.)
Withdrawn
Application number
EP87870083A
Other languages
German (de)
French (fr)
Inventor
Georges Sartori
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.)
Individual
Original Assignee
Individual
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
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0250388A1 publication Critical patent/EP0250388A1/en
Withdrawn legal-status Critical Current

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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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/04—Fire prevention, containment or extinguishing specially adapted for particular objects or places for dust or loosely-baled or loosely-piled materials, e.g. in silos, in chimneys

Definitions

  • the present invention relates to fire detection and particularly to the control of fire in a chimney flue or any other conduit, in which a fire is likely to occur.
  • the object of the invention is to eliminate the drawbacks mentioned above by a method allowing fire control by suppressing oxygen independently.
  • the invention also relates to the fire detection and control device intended to carry out the method.
  • the method according to the invention is characterized in that it consists in placing in the flow of the conduit a detection assembly consisting of one or more thermal fuses and to link the destruction of this fuse or of one or more of these fuses to the triggering of means for closing said conduit.
  • a device intended to carry out the process is characterized according to the invention in that it consists of one or more thermal fuses and an articulated shutter or valve, the closure of which is caused by the destruction of one or more fuses.
  • a chimney 1 evacuating the fumes from a heat producer 2.
  • a metal sheath 3 resistant to fire, weather, acids and abrasion.
  • This sheath 3 which will be constructed so as to adapt to the shape and dimensions of the envisaged duct, is fixed in a sealed manner at 4 to the masonry of the chimney 1.
  • the sheath 3 carries an axis 5, on which an obturator or valve 6 is mounted in an articulated and offset fashion.
  • the position of the axis 5 on the sheath 3 and that of the shutter 6 on the said axis are such as in tilted position the shutter closes said sheath.
  • shutter 6 At one of its ends (at 7) the shutter 6 is connected to a suitable link 8, on which are suspended at more or less regular intervals thermal fuses 9 and a weight 10. Towards its other end (at 11) shutter 6 carries a lever arm 12 on which hangs an appropriate loose link 13 connected to said weight 10.
  • Figure 1 shows the detection position.
  • the weight 10 keeps the shutter 6 open via the link 8 with its fuses 9.
  • the method according to the invention and its device can be applied for example to chimneys, whatever the heat source and the fuel used, to conduits for the transport of powdery products, in the degassing of flammable product tanks or for the protection of conduits against exceeding the limit temperatures. It suffices to tightly fix the device on or in the conduit according to the envisaged application.
  • the device mounted in a vertical duct has been described and shown, but the invention can of course be applied to oblique or horizontal ducts by making appropriate purely constructive modifications to the various elements of the device.
  • the present invention also finds application in the case of forced heat sources, for example oil, gas, coal boilers, etc.
  • forced heat sources for example oil, gas, coal boilers, etc.

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

The method consists in arranging, in the flow of the duct (1), a detection unit consisting of one or more heat fuses (9) and in linking the destruction of this fuse, or of one or more of these fuses (9), to the triggering of means (6) for blocking the said duct (1). In the device there are suspended from the articulated plug (6), towards one of its ends (7), a line (8) supporting over its length one or more heat fuses (9) and, at its end, a weight (10), and towards the other end (11), via a lever arm (12), a loose line (13), the end of which is connected to the said weight (10). <IMAGE>

Description

La présente invention se rapport à la détection d'incen­die et particulièrement à la maîtrise de l'incendie dans un conduit de cheminée ou tout autre conduit, dans lequel est susceptible de se produire un incendie.The present invention relates to fire detection and particularly to the control of fire in a chimney flue or any other conduit, in which a fire is likely to occur.

On connaît l'intérêt qu'il y a à maîtriser un incendie dès sa naissance. Différents procédés existent déjà, mais ils sont tributaires d'énergies et de produits d'extinction limitant leur fiabilité.We know the value of controlling a fire from the start. Different processes already exist, but they are dependent on energies and extinguishing products limiting their reliability.

L'invention a pour but d'éliminer les inconvénients cités ci-dessus par un procédé permettant une maîtrise de l'incendie par suppression de l'oxygène de manière autonome.The object of the invention is to eliminate the drawbacks mentioned above by a method allowing fire control by suppressing oxygen independently.

L'invention concerne également le dispositif de détec­tion et de maîtrise d'incendie destiné à réaliser le procédé.The invention also relates to the fire detection and control device intended to carry out the method.

Le procédé conforme à l'invention est caractérisé en ce qu'il consiste à disposer dans le flux du conduit un ensemble de détection constitué d'un ou plusieurs fusibles thermiques et à lier la destruction de ce fusible ou d'un ou plusieurs de ces fusibles au déclen­chement de moyens d'obturation dudit conduit.The method according to the invention is characterized in that it consists in placing in the flow of the conduit a detection assembly consisting of one or more thermal fuses and to link the destruction of this fuse or of one or more of these fuses to the triggering of means for closing said conduit.

Un dispositif destiné à réaliser le procédé est caracté­risé suivant l'invention en ce qu'il consiste en un ou plusieurs fusibles thermiques et en un obturateur articulé ou clapet, dont la fermeture est provoquée par la destruction d'un ou plusieurs fusibles.A device intended to carry out the process is characterized according to the invention in that it consists of one or more thermal fuses and an articulated shutter or valve, the closure of which is caused by the destruction of one or more fuses.

Pour mieux faire comprendre l'invention celle-ci est décrite maintenant avec plus de détails sur la base des dessins annexés, à titre d'exemple uniquement, montrant en :

  • Figure 1 une coupe longitudinale dans un dispositif de détection et d'extinction d'un incendie dans une cheminée, l'obturateur étant en position de détec­tion, et
  • Figure 2 une coupe analogue à celle de la figure 1, l'obturateur étant en position d'extinction.
To better understand the invention, it is now described in more detail on the basis of the appended drawings, by way of example only, showing in:
  • FIG. 1 a longitudinal section through a device for detecting and extinguishing a fire in a chimney, the shutter being in the detection position, and
  • Figure 2 a section similar to that of Figure 1, the shutter being in the extinguished position.

On a représenté aux dessins une cheminée 1 évacuant les fumées d'un producteur de chaleur 2. Dans la cheminée 1 est montée une gaine métallique 3, résis­tant au feu, aux intempéries, aux acides et à l'abra­sion. Cette gaine 3, qui sera construite de manière à s'adapter à la forme et aux dimensions du conduit envisagé, est fixée de façon étanche en 4 à la maçon­nerie de la cheminée 1.There is shown in the drawings a chimney 1 evacuating the fumes from a heat producer 2. In the chimney 1 is mounted a metal sheath 3, resistant to fire, weather, acids and abrasion. This sheath 3, which will be constructed so as to adapt to the shape and dimensions of the envisaged duct, is fixed in a sealed manner at 4 to the masonry of the chimney 1.

La gaine 3 porte un axe 5, sur lequel est monté de manière articulée et déxaxée un obturateur ou clapet 6. La position de l'axe 5 sur la gaine 3 et celle de l'obturateur 6 sur ledit axe sont telles que en position basculée l'obturation ferme ladite gaine.The sheath 3 carries an axis 5, on which an obturator or valve 6 is mounted in an articulated and offset fashion. The position of the axis 5 on the sheath 3 and that of the shutter 6 on the said axis are such as in tilted position the shutter closes said sheath.

A une de ses extrémités (en 7) l'obturateur 6 est relié à un lien approprié 8, sur lequel sont suspendus à intervalles plus ou moins réguliers des fusibles thermiques 9 et un poids 10. Vers son autre extrémi­té (en 11) l'obturateur 6 porte un bras de levier 12 auquel pend un lien lâche approprié 13 relié audit poids 10.At one of its ends (at 7) the shutter 6 is connected to a suitable link 8, on which are suspended at more or less regular intervals thermal fuses 9 and a weight 10. Towards its other end (at 11) shutter 6 carries a lever arm 12 on which hangs an appropriate loose link 13 connected to said weight 10.

La figure 1 montre la position de détection. Le poids 10 maintient l'obturateur 6 ouvert par l'intermédiaire du lien 8 avec ses fusibles 9.Figure 1 shows the detection position. The weight 10 keeps the shutter 6 open via the link 8 with its fuses 9.

S'il y a incendie dans la cheminée, il y a rupture d'au moins un des fusibles 9. Cette destruction du fusible 9 provoque la destruction du lien 8 portant le poids 10, qui libéré va agir sur le lien 13 et provoquer une traction sur le bras de levier 12 soli­daire de l'obturateur 6. Celui-ci va basculer sur son axe 5 et fermer la gaine 3.If there is a fire in the chimney, there is rupture of at least one of the fuses 9. This destruction of the fuse 9 causes the destruction of the link 8 carrying the weight 10, which released will act on the link 13 and cause a traction on the lever arm 12 secured to the shutter 6. The latter will rock on its axis 5 and close the sheath 3.

On obtient ainsi la position d'extinction représentée dans la figure 2, où l'obturateur agit en fermeture pour obstruer le passage et, par là, éliminer l'oxygène.This gives the extinction position shown in Figure 2, where the shutter acts in closing to obstruct the passage and thereby eliminate oxygen.

Par mesure de sécurité, pour l'élimination de tous gaz toxiques dans les locaux, une légère dépression est prévue, lorsque le conduit est obstrué, par le maintien d'un étroit passage dans la gaine.As a safety measure, for the elimination of all toxic gases in the premises, a slight depression is provided, when the duct is obstructed, by maintaining a narrow passage in the sheath.

Le procédé suivant l'invention et son dispositif peuvent être appliqués par exemple aux cheminées, quels que soient la source de chaleur et le combustible utilisés, aux conduits pour le transport de produits pulvérulents, dans le dégazage des réservoirs de produits inflammables ou encore pour la protection de conduits contre tout dépassement des températures limites. Il suffit de fixer de façon étanche le dispositif sur ou dans le conduit suivant l'application envisagée. Ainsi, on a décrit et représenté le dispositif monté dans un conduit vertical mais l'invention peut bien entendu s'appliquer à des conduits obliques ou horizontaux en apportant aux divers éléments du dispositif les modifications purement constructives appropriées.The method according to the invention and its device can be applied for example to chimneys, whatever the heat source and the fuel used, to conduits for the transport of powdery products, in the degassing of flammable product tanks or for the protection of conduits against exceeding the limit temperatures. It suffices to tightly fix the device on or in the conduit according to the envisaged application. Thus, the device mounted in a vertical duct has been described and shown, but the invention can of course be applied to oblique or horizontal ducts by making appropriate purely constructive modifications to the various elements of the device.

La présente invention trouve aussi application dans le cas de sources de chaleur forcées, par exemple chaudières au fuel, au gaz, au charbon, etc. On voit aux dessins que l'obturateur 6 est en contact, en position de détection, avec un contrôleur 14, qui libéré lors de la fermeture dudit obturateur coupe toute alimentation au producteur de chaleur 2.The present invention also finds application in the case of forced heat sources, for example oil, gas, coal boilers, etc. We see in the drawings that the shutter 6 is in contact, in the detection position, with a controller 14, which released when the said shutter is closed, cuts off all supply to the heat producer 2.

Claims (8)

1. Procédé de détection et de maîtrise d'incendie à l'intérieur de conduits, caractérisé en ce qu'il consiste à disposer dans le flux du conduit (1) un ensemble de détection constitué d'un ou plusieurs fusibles thermiques (9) et à lier la destruction de ce fusible ou d'un ou plusieurs de ces fusibles (9) au déclenchement de moyens d'obturation (6) dudit conduit (1).1. Method for detecting and controlling fire inside conduits, characterized in that it consists in placing in the flow of the conduit (1) a detection assembly consisting of one or more thermal fuses (9) and to link the destruction of this fuse or one or more of these fuses (9) to the triggering of shutter means (6) of said conduit (1). 2. Procédé suivant la revendication 1, caractérisé en ce qu'il consiste à lier le déclenchement des moyens d'obturation (6) du conduit (1) à la commande de moyens de coupure (14) de l'alimentation en combustible, comburant ou courant électrique du producteur de chaleur (1).2. Method according to claim 1, characterized in that it consists in linking the triggering of the shutter means (6) of the conduit (1) to the control of cutting means (14) of the fuel supply, oxidizer or electric current of the heat producer (1). 3. Procédé suivant la revendication 1, caractérisé en ce qu'il consiste à lier le déclenchement des moyens d'obturation (6) du conduit (1) à un systéme d'alarme.3. Method according to claim 1, characterized in that it consists in linking the triggering of the shutter means (6) of the conduit (1) to an alarm system. 4. Dispositif de détection et de maîtrise d'incendie à l'intérieur de conduits, destiné à réaliser le procédé décrit en revendication 1, caractérisé en ce qu'il consiste en un ou plusieurs fusibles thermiques (9) et en un obturateur articulé ou clapet (6), dont la fermeture est provoquée par la destruction d'un ou plusieurs fusibles (9).4. Fire detection and control device inside conduits, intended to carry out the method described in claim 1, characterized in that it consists of one or more thermal fuses (9) and of a hinged shutter or valve (6), the closure of which is caused by the destruction of one or more fuses (9). 5. Dispositif suivant la revendication 4, caractérisé en ce que sont suspendus à l'obturateur articulé (6) vers une de ses extrémités (7) un lien (8) supportant sur sa longueur un ou plusieurs fusibles thermiques (9) et à son bout une masse (10), et vers l'autre extrémité (11) par l'intermédiaire d'un bras de levier (12) un lien lâche (13) dont le bout est relié à la­dite masse (10).5. Device according to claim 4, characterized in that are suspended from the articulated shutter (6) towards one of its ends (7) a link (8) supporting over its length one or more thermal fuses (9) and its end a mass (10), and towards the other end (11) via a lever arm (12) a loose link (13) whose end is connected to said mass (10). 6. Dispositif suivant la revendication 4, caractérisé en ce qu'il est monté dans un élément de gaine (3) portant l'axe d'articulation (5) de l'obturateur (6) et à fixer de manière étanche dans le conduit (1).6. Device according to claim 4, characterized in that it is mounted in a sheath element (3) carrying the hinge pin (5) of the shutter (6) and to be fixed in leaktight manner in the duct (1). 7. Dispositif suivant la revendication 4, caractérisé en ce que l'obturateur (6) est constitué de telle manière que dans sa position de fermeture il reste dans le conduit (1) un étroit passage pour éviter une surpression.7. Device according to claim 4, characterized in that the shutter (6) is constituted such that in its closed position there remains in the conduit (1) a narrow passage to avoid overpressure. 8. Dispositif suivant la revendication 4, caractérisé en ce que à l'obturateur (6) est relié un dispositif de contrôle (14) destiné, lors de la fermeture dudit obturateur (6), à couper l'alimentation du producteur de chaleur (2).8. Device according to claim 4, characterized in that to the shutter (6) is connected a control device (14) intended, during the closing of said shutter (6), to cut the power supply to the heat producer ( 2).
EP87870083A 1986-06-18 1987-06-17 Method for detecting and extinguishing duct fires, and apparatus for carrying out this method Withdrawn EP0250388A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE904952 1986-06-18
BE6/48233A BE904952A (en) 1986-06-18 1986-06-18 DEVICE AND METHOD FOR DETECTING AND CONTROLLING FIRES WITHIN THE CONDUITS.

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EP0250388A1 true EP0250388A1 (en) 1987-12-23

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EP87870083A Withdrawn EP0250388A1 (en) 1986-06-18 1987-06-17 Method for detecting and extinguishing duct fires, and apparatus for carrying out this method

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BE (1) BE904952A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5247998A (en) * 1993-01-26 1993-09-28 Fallon Edward C Chimney fire extinguishing apparatus
KR100398809B1 (en) * 1999-12-08 2003-09-19 주식회사 포스코 System for detecting and extinguishing fire at the conveyer belt for transferring powdered coal

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2351365A (en) * 1941-12-22 1944-06-13 Piagneri Umberto Fire extinguisher
FR1008766A (en) * 1948-05-22 1952-05-21 Improvements made to devices for combating chimney fires
FR2205819A5 (en) * 1972-11-06 1974-05-31 Boucq Andre

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2351365A (en) * 1941-12-22 1944-06-13 Piagneri Umberto Fire extinguisher
FR1008766A (en) * 1948-05-22 1952-05-21 Improvements made to devices for combating chimney fires
FR2205819A5 (en) * 1972-11-06 1974-05-31 Boucq Andre

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5247998A (en) * 1993-01-26 1993-09-28 Fallon Edward C Chimney fire extinguishing apparatus
KR100398809B1 (en) * 1999-12-08 2003-09-19 주식회사 포스코 System for detecting and extinguishing fire at the conveyer belt for transferring powdered coal

Also Published As

Publication number Publication date
BE904952A (en) 1986-12-18

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