FR2650057A1 - Method and device for ensuring the correct operation of a burner, and their applications - Google Patents

Method and device for ensuring the correct operation of a burner, and their applications Download PDF

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Publication number
FR2650057A1
FR2650057A1 FR8909773A FR8909773A FR2650057A1 FR 2650057 A1 FR2650057 A1 FR 2650057A1 FR 8909773 A FR8909773 A FR 8909773A FR 8909773 A FR8909773 A FR 8909773A FR 2650057 A1 FR2650057 A1 FR 2650057A1
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France
Prior art keywords
burner
signal
air
oxygen level
relays
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Granted
Application number
FR8909773A
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French (fr)
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FR2650057B1 (en
Inventor
Georges Baeckeroot
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TECH DIFFUSION
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TECH DIFFUSION
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Priority to FR898909773A priority Critical patent/FR2650057B1/en
Publication of FR2650057A1 publication Critical patent/FR2650057A1/en
Application granted granted Critical
Publication of FR2650057B1 publication Critical patent/FR2650057B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
    • F23N5/245—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electrical or electromechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/003—Systems for controlling combustion using detectors sensitive to combustion gas properties
    • F23N5/006—Systems for controlling combustion using detectors sensitive to combustion gas properties the detector being sensitive to oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2231/00—Fail safe
    • F23N2231/20—Warning devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2233/00—Ventilators
    • F23N2233/06—Ventilators at the air intake
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2239/00—Fuels
    • F23N2239/04—Gaseous fuels

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

The invention relates to the monitoring of the correct operation of a burner. The oxygen content of the combustion gases from the burner is detected, and this detection is used to produce a signal representing said content, and this signal is used to control the setting-up or interruption of electrical contacts in order to signal an excess of air or to halt the operation of the burner in the event of a lack of air. The invention also relates to a monitoring apparatus which includes a measuring cell 1, relays 2, 4 forming part of an alarm-producing device 3 and of a device 5 for controlling the operation of the burner, respectively. The invention applies particularly to forced (blown) air burners, in particular of a condensing generator or boiler.

Description

L'invention concerne la sécurité du bon fonctionnement d'un brûleur. The invention relates to the safety of the proper functioning of a burner.

Elle s'applique notamment aux brûleurs à air soufflé et, en particulier, aux brûleurs des chaudières ou générateurs à condensation. It applies in particular to forced air burners and, in particular, to burners of boilers or condensing generators.

Selon l'invention, on détecte le taux d'oxygène des gaz de combustion du brûleur, on utilise cette détection pour produire un signal représentatif dudit taux, et on utilise ce signal pour commander
I'établissement ou l'interruption de contacts électriques de façon à signaler un excès d'air ou à arrêter le fonctionnement du brûleur en cas de manque d'air.According to the invention, the oxygen level of the burner combustion gases is detected, this detection is used to produce a signal representative of said rate, and this signal is used to control
The establishment or interruption of electrical contacts in order to signal an excess of air or to stop the operation of the burner in the event of a lack of air.

On décrira ci-après un appareil de mise en oeuvre de l'invention, en référence à la figure unique du dessin joint qui est un schéma de principe de l'appareil. An apparatus for implementing the invention will be described below, with reference to the single figure of the accompanying drawing which is a block diagram of the apparatus.

Dans cet exemple, L'appareil est un ensemble monobloc intégré à l'ensemble brûleur-corps de chauffe, en particulier intégré au conduit de fumées de l'installation. In this example, the device is a one-piece assembly integrated into the burner-heater assembly, in particular integrated into the installation's flue gas pipe.

Cet appareil comprend une cellule de mesure (I) du taux d'oxygène présent dans les fumées de combustion du brûleur, cette cellule donnant un signal proportionnel au taux d'oxygène mesuré, et des relais à seuil (2,3) commandés par ledit signal, I'un des relais (2)faisant partie d'un dispositif (4) producteur d'alarme et étant réglé pour déclencher une alarme lorsque le taux d'oxygène est supérieur à un maximum choisi, et l'un des relais (3) faisant partie d'un dispositif (5) de commande du fonctionnement du brûleur et étant réglé pour interrompre ce fonctionnement lorsque le taux d'oxygène est inférieur à un minimum choisi. This device includes a cell for measuring (I) the oxygen level present in the combustion smoke from the burner, this cell giving a signal proportional to the measured oxygen rate, and threshold relays (2, 3) controlled by said device. signal, one of the relays (2) forming part of an alarm producing device (4) and being set to trigger an alarm when the oxygen level is higher than a chosen maximum, and one of the relays ( 3) forming part of a device (5) for controlling the operation of the burner and being adjusted to interrupt this operation when the oxygen level is below a chosen minimum.

Le dispositif commande par exemple l'admission du brûleur en gaz combustible. The device controls for example the admission of the burner into combustible gas.

Les relais (2,3) sont reglés, par exemple pour déclencher une alarme si le taux d'oxygène est égal ou supérieur à 40% environ et pour arrêter le fonctionnement du brûleur si ce taux devient égal ou inférieur à I % environ. The relays (2,3) are set, for example to trigger an alarm if the oxygen rate is equal to or greater than 40% and to stop the operation of the burner if this rate becomes equal to or less than approximately I%.

L'appareil est de préférence à réarmement manuel.  The device is preferably with manual reset.

La cellule est de préférence choisie pour être automatiquement étalonnée à chaque mise en service. En variante, I'étalonnage est commandé par action manuelle ou par une horloge. The cell is preferably chosen to be automatically calibrated each time it is put into service. As a variant, the calibration is controlled by manual action or by a clock.

L'invention fournit ainsi un appareil de sécurité de chaudière simple et peu coûteux, établi à poste fixe, capable de stopper une combustion et de signaler un gaspillage d'énergie. The invention thus provides a simple and inexpensive boiler safety device, established at a fixed station, capable of stopping combustion and signaling a waste of energy.

Son emploi est particulièrement destiné à
- à toutes les installations équipées de brûleur air soufflé, gaz ou fioul;
- à toutes les chaudières ou générateurs "à condensation" ou l'excès d'air provoque une perte de rendement très importante (par augmentation du "point de rosée")
- à toutes les installations où le risque d'encrassement par production de suies provenant d'un manque d'air, est grave de conséquences (brûleurs propane-butane-air propané)
- à toutes les installations présentant un risque de pollution par le CO. Its use is particularly intended for
- at all installations fitted with a supply air, gas or oil burner;
- to all "condensing" boilers or generators where excess air causes a very significant loss of efficiency (by increasing the "dew point")
- at all installations where the risk of fouling by the production of soot from a lack of air is of serious consequence (propane-butane-propane air burners)
- all installations presenting a risk of CO pollution.

Cet appareil permet d'utiliser des brûleurs standards air soufflé (I 2 allures ou modulant) pour équiper des générateurs ou chaudières agréés "NF-condensation".  This device allows the use of standard supply air burners (I 2 stages or modulating) to equip generators or boilers approved "NF-condensation".

Claims (8)

REVENDICATIONS 1. Procédé pour contrôler le bon fonctionnement d'un brûleur dans lequel on détecte le taux d'oxygène des gaz de combustion du brûleur, on utilise cette détection pour produire un signal représentatif dudit taux, et on utilise ce signal pour commander l'établissement ou l'interruption de contacts électriques de façon à signaler un excès d'air ou à arrêter le fonctionnement du brûleur en cas de manque d'air. 1. Method for controlling the correct operation of a burner in which the oxygen level of the burner combustion gases is detected, this detection is used to produce a signal representative of said rate, and this signal is used to control the establishment or the interruption of electrical contacts in order to signal an excess of air or to stop the operation of the burner in the event of a lack of air. 2. Appareil de sécurité pour contrôler le bon fonctionnement d'un brûleur, cet appareil comprenant une cellule de mesure (1) du taux d'oxygène présent dans les fumées de combustion du brûleur, cette cellule donnant un signal proportionnel au taux d'oxygène mesuré, et des relais à seuil commandés par ledit signal, I'un des relais (2) faisant partie d'un dispositif (3) producteur d'alarme et étant réglé pour déclencher une alarme lorsque le taux d'oxygène est supérieur à un maximum choisi, et l'un des relais (4) faisant partie d'un dispositif (5) de commande du fonctionnement du brûleur et étant réglé pour interrompre ce fonctionnement lorsque le taux d'oxygène est inférieur à un minimum choisi. 2. Safety device for controlling the proper functioning of a burner, this device comprising a cell for measuring (1) the oxygen level present in the combustion fumes of the burner, this cell giving a signal proportional to the rate of oxygen measured, and threshold relays controlled by said signal, one of the relays (2) forming part of an alarm producing device (3) and being set to trigger an alarm when the oxygen level is greater than one maximum chosen, and one of the relays (4) forming part of a device (5) for controlling the operation of the burner and being adjusted to interrupt this operation when the oxygen level is below a chosen minimum. 3. Appareil selon la revendication 2, caractérisé en ce que ledit dispositif de commande (5) commande l'alimentation du brûleur en gaz combustible.3. Apparatus according to claim 2, characterized in that said control device (5) controls the supply of fuel gas to the burner. 4. Appareil selon la revendication 2 ou 3, caractérisé en ce qu'il est monobloc.4. Apparatus according to claim 2 or 3, characterized in that it is in one piece. 5. Appareil selon la revendication 4, caractérisé en ce qu'il est intégré à l'ensemble brûleurcorps de chauffe.5. Apparatus according to claim 4, characterized in that it is integrated with the burner body assembly. 6. Appareil selon la revendication 5, caractérisé en ce qu'il est intégré au conduit de fumées du brûleur.6. Apparatus according to claim 5, characterized in that it is integrated into the flue pipe of the burner. 7. Application d'un procédé selon la revendication I et/ou d'un appareil selon l'une des revendications 2 à 6 au brûleur d'une chaudière ou générateur à condensation.7. Application of a method according to claim I and / or an apparatus according to one of claims 2 to 6 to the burner of a boiler or condensing generator. 8. Application d'un procédé selon la revendication 1 et/ou d'un appareil selon l'une des revendications 2 à 5 à un brûleur à air soufflé.  8. Application of a method according to claim 1 and / or an apparatus according to one of claims 2 to 5 to a supply air burner.
FR898909773A 1989-07-20 1989-07-20 METHOD AND DEVICE FOR ENSURING THE PROPER OPERATION OF A BURNER AND THEIR APPLICATIONS Expired - Fee Related FR2650057B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR898909773A FR2650057B1 (en) 1989-07-20 1989-07-20 METHOD AND DEVICE FOR ENSURING THE PROPER OPERATION OF A BURNER AND THEIR APPLICATIONS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR898909773A FR2650057B1 (en) 1989-07-20 1989-07-20 METHOD AND DEVICE FOR ENSURING THE PROPER OPERATION OF A BURNER AND THEIR APPLICATIONS

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FR2650057A1 true FR2650057A1 (en) 1991-01-25
FR2650057B1 FR2650057B1 (en) 1994-03-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996033373A1 (en) * 1995-04-19 1996-10-24 Bowin Technology Pty. Limited Heating appliance

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2348440A1 (en) * 1976-04-15 1977-11-10 Matsushita Electric Ind Co Ltd SAFETY EQUIPMENT FOR GAS BURNER
GB2065345A (en) * 1979-11-30 1981-06-24 Rinnai Kk Combustion safety apparatus
EP0085224A1 (en) * 1981-10-20 1983-08-10 Matsushita Electric Industrial Co., Ltd. Combustion monitoring with an oxygen shortage sensor
JPS5960124A (en) * 1982-09-30 1984-04-06 Matsushita Electric Ind Co Ltd Incomplete combustion detecting device
FR2607905A1 (en) * 1986-12-05 1988-06-10 Pramata Device for checking the state of the flue gases of a heat or force generator burning a fuel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2348440A1 (en) * 1976-04-15 1977-11-10 Matsushita Electric Ind Co Ltd SAFETY EQUIPMENT FOR GAS BURNER
GB2065345A (en) * 1979-11-30 1981-06-24 Rinnai Kk Combustion safety apparatus
EP0085224A1 (en) * 1981-10-20 1983-08-10 Matsushita Electric Industrial Co., Ltd. Combustion monitoring with an oxygen shortage sensor
JPS5960124A (en) * 1982-09-30 1984-04-06 Matsushita Electric Ind Co Ltd Incomplete combustion detecting device
FR2607905A1 (en) * 1986-12-05 1988-06-10 Pramata Device for checking the state of the flue gases of a heat or force generator burning a fuel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 8, no. 166 (M-314)(1603) 02 août 1984, & JP-A-59 60124 (MATSUSHITA DENKI SANGIO K.K) 06 avril 1984, *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996033373A1 (en) * 1995-04-19 1996-10-24 Bowin Technology Pty. Limited Heating appliance
US5984663A (en) * 1995-04-19 1999-11-16 Bowin Technology Pty. Ltd. Gas fueled heating appliance

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