EP0869318A1 - Dispositif de sécurité pour poêle mesurant directement le taux d'une production gazeuse - Google Patents
Dispositif de sécurité pour poêle mesurant directement le taux d'une production gazeuse Download PDFInfo
- Publication number
- EP0869318A1 EP0869318A1 EP98470009A EP98470009A EP0869318A1 EP 0869318 A1 EP0869318 A1 EP 0869318A1 EP 98470009 A EP98470009 A EP 98470009A EP 98470009 A EP98470009 A EP 98470009A EP 0869318 A1 EP0869318 A1 EP 0869318A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- safety device
- microsensor
- sensor
- micro
- gas
- 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.)
- Granted
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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
- F23N5/242—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electronic 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
Definitions
- the present invention relates to a safety or regulation device for heating apparatus with liquid, solid, gaseous fuel, in particular but not limited to mobile petroleum heater.
- heat is obtained by catalysis of the fuel brought into the catalysis zone by capillarity by means of a wick.
- An actuator or operating mechanism makes it possible to control the output or clearing the wick in a wick holder and thereby shutting down the stove.
- This type of device must be equipped with a safety system requiring its total shutdown by extinction before the CO 2 content of the room reaches predetermined thresholds and prohibiting the possibility of re-ignition as long as the cause that motivated this shutdown has not gone.
- this solution also requires a pumping device and sufficient air speed.
- the current solution is to indirectly assess the CO 2 level by measuring the temperature in the vicinity of the device only in a sealed laboratory room and under certain environmental conditions. Under these boundary conditions, this temperature is correlated with the CO 2 level .
- Such devices are for example described in documents US-A-4,493,634, EP-A-0 075 602 and FR 95 03236 of the applicant.
- This solution uses multiple components (probe, thermostat, thermocouples or others), and its reliability and accuracy depend in particular on the type of living room, temperature sampled, number of components, etc ...
- the Applicant proposes a new solution to this problem which makes it possible to directly measure a CO 2 level , for example less than 1%, without significantly increasing the price of the device.
- the Applicant had the idea of using a gas micro-sensor chosen from the assembly (thermal conductivity micro-sensor, catalytic micro-sensor, semiconductor oxide microsensor, electrochemical microsensor).
- the invention consists of a safety device for heating apparatus with solid, liquid or gaseous fuel, characterized in what it includes a detection set composed mainly of a micro-sensor chosen from the set (thermal conductivity micro-sensor, micro-sensor semiconductor oxide micro-sensor) which detects the production of a dangerous or unwanted gas in the environment of the appliance and informs an electronic control unit, this causing the stopping of the apparatus as soon as a predetermined rate of said gas is reached.
- a detection set composed mainly of a micro-sensor chosen from the set (thermal conductivity micro-sensor, micro-sensor semiconductor oxide micro-sensor) which detects the production of a dangerous or unwanted gas in the environment of the appliance and informs an electronic control unit, this causing the stopping of the apparatus as soon as a predetermined rate of said gas is reached.
- this sensor includes an electronically activated heating element and a temperature, both mounted in a Wheatstone bridge associated with a amplifier.
- the micro-sensor is a semi-conductor type micro-sensor composed of a heating filament and a sensitive layer, associated with an amplifier.
- the micro-sensor is a catalytic type micro-sensor composed of a platinum filament regulated by a heating and management electronics associated with an amplifier.
- the micro-sensor and an electrochemical micro-sensor mounted on its management circuit and associated with an amplifier.
- the device according to the invention may also comprise, whatever the type of sensor used, a discrimination assembly making it possible to distinguish an unwanted gas production, for example CO 2 , from another gas production having a characteristic close to that of unwanted gas.
- a discrimination assembly making it possible to distinguish an unwanted gas production, for example CO 2 , from another gas production having a characteristic close to that of unwanted gas.
- This industrial application is not limited to petroleum stoves, it can be generalized to all fuel-burning heaters solid, liquid, gaseous.
- the actuator (10) is a wick actuator.
- a gas micro-sensor (A 1 ), measuring the thermal conductivity of gases, generally consists of a resistive heating element (3) deposited by known techniques of micro-electronics on a thin membrane electrically and thermally insulated, and d '' a temperature sensor (4) deposited on a silicone support.
- the measurement results from the heat dissipation of the membrane, itself resulting from the thermal conductivity of the gas surrounding said membrane.
- the microsensor (A 1 ) is associated with a specific circuit to form the detection assembly (C 1 ) operating as follows:
- the heating element (3) is activated by electronics (1), the temperature (4) reads the thermal conductivity value of the gas using a bridge Wheatstone (5) associated with an amplifier (2).
- the electronic assembly (B) controls the actuator (10) and therefore causes the stove to stop.
- the stove stops each time the threshold is reached, whether the gas is CO 2 , or a mixture of gases or a gaseous element such as ammonia whose conductivities are very close to those of CO 2 .
- the discrimination set can for example function on the reading of the signature curve of a gas.
- the control assembly (B) includes other elements, for example example a temperature detection (9) which can be used to thermostate the device.
- an action on a push button (11) must be mandatory to start the stove, and an electronic module (7) monitors the state of the source supply (6) preventing the stove from being started if the source fails.
- the second embodiment shown in FIG. 2 comprises a detection assembly (C 2 ) with a micro-sensor (A 2 ) of the semi-conductor type composed of a heating filament (12) and a sensitive layer (13 ) associated with an amplifier (14) and with management electronics (15) making it possible to detect the presence of gas to signal it to the electronic control unit (B) and therefore to trigger the shutdown of the oil stove.
- the third embodiment represented in FIG. 3 comprises a detection assembly (C 3 ) with micro-sensor (A 3 ) of catalytic type composed of a filament (23) or other, regulated by an electronic heating and management (25).
- a 3 micro-sensor
- the resistance of the filament (23) changes and can be measured using the amplifier (24) and thus make it possible to detect the presence of the gas and report it to the electronic control unit (B) and also trigger the shutdown of the oil stove.
- the fourth embodiment represented in FIG. 4 comprises a detection assembly (C 4 ) with micro-sensor (A 4 ) of electrochemical type mounted on its management circuit (35) and the output signal of which is amplified by the amplifier (34).
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
Description
- concevoir un circuit de mesure spécifique,
- définir une procédure de discrimination entre le CO2 et un autre élément gazeux qui présenterait une caractéristique très proche de celle du CO2.
- la figure 1 est un schéma fonctionnel du dispositif selon un premier mode de réalisation de l'invention,
- la figure 2 est un schéma fonctionnel du dispositif selon un deuxième mode de réalisation de l'invention,
- la figure 3 est un schéma fonctionnel du dispositif selon un troisième mode de réalisation de l'invention,
- la figure 4 est un schéma fonctionnel du dispositif selon un quatrième mode de réalisation de l'invention,
- ammoniac,
- azote,
- solvants,
- alcool,
- etc...
- mesure directe du taux de CO2 dans la pièce (excellente corrélation avec la combustion),
- conformité parfaite au décret n° 92-1280 du 10/12/92 et à la norme NF D 35-300,
- utilisation de l'appareil impossible en cas de défaillance de l'énergie auxiliaire même avec un allumage extérieur (allumettes...).
Claims (11)
- Dispositif de sécurité pour appareil de chauffage à combustible solide, liquide ou gazeux, caractérisé en ce qu'il comporte un ensemble de détection (C) composé principalement d'un micro-capteur choisi dans l'ensemble (micro-capteur à conductivité thermique, micro-capteur catalytique, micro-capteur à oxyde semi-conducteur) qui détecte la production d'un gaz dangereux ou non désiré dans l'environnement de l'appareil et informe un ensemble électronique de commande (B), celui-ci provoquant l'arrêt de l'appareil dès qu'un taux prédéterminé dudit gaz est atteint.
- Dispositif de sécurité selon la revendication 1, caractérisé en ce qu'il comporte en outre un ensemble de discrimination (D) permettant de distinguer une production de gaz non désiré d'une production gazeuse ayant une caractéristique proche de celle du gaz non désiré.
- Dispositif de sécurité selon la revendication 2, caractérisé en ce que le gaz non désiré est du CO2.
- Dispositif de sécurité selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'il comporte en outre un bouton-poussoir (11) dont l'action est obligatoire pour mettre en marche le poêle.
- Dispositif de sécurité selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'il comporte en outre un détecteur de température (9) servant à thermostater l'appareil.
- Dispositif de sécurité selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le micro-capteur est un micro-capteur (A1) à conductivité thermique comportant un élément chauffant (3) activé par une électronique (1) et un capteur de température (4) monté dans un pont de Wheatstone (5) associé à un amplificateur (2).
- Dispositif de sécurité selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le micro-capteur est un micro-capteur (A2) de type semi-conducteur composé d'un filament de chauffage (12) et d'une couche sensible (13), associé à un amplificateur (14).
- Dispositif de sécurité selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le micro-capteur est un micro-capteur (A3) de type catalytique composé d'un filament de platine (23) régulé par une électronique de chauffage et de gestion (25) associé à un amplificateur (24).
- Dispositif de sécurité selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le micro-capteur est un micro-capteur (A4) électrochimique monté sur son circuit de gestion (35) et associé à un amplificateur (34).
- Dispositif de sécurité selon l'une quelconque des revendications 1 à 9, caractérisé en ce qu'il comporte un module de surveillance (7) de l'état de la source d'alimentation (6).
- Dispositif de sécurité selon l'une quelconque des revendications 1 à 10, caractérisé en ce qu'il comporte un moyen d'autocalibration.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9704433 | 1997-04-04 | ||
FR9704433A FR2761756B1 (fr) | 1997-04-04 | 1997-04-04 | Dispositif de securite pour poele comportant un capteur mesurant la conductivite thermique des gaz |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0869318A1 true EP0869318A1 (fr) | 1998-10-07 |
EP0869318B1 EP0869318B1 (fr) | 2002-09-18 |
Family
ID=9505762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98470009A Expired - Lifetime EP0869318B1 (fr) | 1997-04-04 | 1998-04-03 | Dispositif de sécurité pour poêle mesurant directement le taux d'une production gazeuse |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0869318B1 (fr) |
DE (1) | DE69807967D1 (fr) |
ES (1) | ES2184215T3 (fr) |
FR (1) | FR2761756B1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004074809A2 (fr) * | 2003-02-14 | 2004-09-02 | Stanton Enterprises, Inc. | Procede et appareil pour la detection fiable de monoxyde de carbone |
DE202009002820U1 (de) | 2009-02-27 | 2009-04-30 | Kermi Gmbh | Halte- und Justiervorrichtung für Heizkörper |
US8286603B2 (en) | 2007-01-31 | 2012-10-16 | Fumes Safety Llc | System and method for controlling toxic gas |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0075602A1 (fr) | 1981-04-06 | 1983-04-06 | Matsushita Electric Industrial Co., Ltd. | Dispositif de combustion de securite pour un appareil de combustion a combustible liquide |
US4493634A (en) | 1982-04-28 | 1985-01-15 | Yang Jerry S C | Kerosene heating stove with temperature and carbonic oxide sensors |
JPS62294809A (ja) * | 1986-06-11 | 1987-12-22 | Sanyo Electric Co Ltd | 燃焼機器に使用される有毒ガス検知器 |
EP0358925A2 (fr) * | 1988-09-14 | 1990-03-21 | Seiko Co.,Ltd. | Détecteur d'oxyde de carbone par combustion catalytique |
EP0439950A1 (fr) * | 1989-12-28 | 1991-08-07 | Honeywell Inc. | Détermination de la conductibilité thermique et de la chaleur massique des gaz dans des conditions normales |
EP0440828A1 (fr) * | 1987-08-14 | 1991-08-14 | Hesham Hassan Gazzaz | Système de surveillance de gaz avec détection de fuites et coupure du courant du gaz |
FR2671406A1 (fr) | 1991-01-09 | 1992-07-10 | Am Chamrceun Rith | Detecteur d'etat d'alarme comme un detecteur de concentration dangereuse en gaz nocifs dans un milieu. |
EP0511582A1 (fr) * | 1991-04-29 | 1992-11-04 | EUROGIADA S.r.l. | Dispositif pour la détection des impuretés atmosphériques |
JPH06229539A (ja) * | 1993-02-05 | 1994-08-16 | Paloma Ind Ltd | 燃焼装置 |
US5418131A (en) * | 1994-04-13 | 1995-05-23 | General Signal Corporation | Humidity compensated carbon dioxide gas measurement and control |
JPH08178281A (ja) * | 1994-12-28 | 1996-07-12 | Tokyo Gas Co Ltd | 対coガス安全システム |
FR2731776A1 (fr) | 1995-03-16 | 1996-09-20 | Dtn Fr Sa | Dispositif de securite ou regulation passif pour appareil de chauffage |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991006808A1 (fr) * | 1989-10-26 | 1991-05-16 | Toyotomi Kogyo Co., Ltd. | Procede de controle et de maintien de la securite de fonctionnement des poeles sans conduit, en particulier des poeles a mazout, et dispositif pour la mise en ×uvre du procede |
-
1997
- 1997-04-04 FR FR9704433A patent/FR2761756B1/fr not_active Expired - Fee Related
-
1998
- 1998-04-03 EP EP98470009A patent/EP0869318B1/fr not_active Expired - Lifetime
- 1998-04-03 DE DE69807967T patent/DE69807967D1/de not_active Expired - Lifetime
- 1998-04-03 ES ES98470009T patent/ES2184215T3/es not_active Expired - Lifetime
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0075602A1 (fr) | 1981-04-06 | 1983-04-06 | Matsushita Electric Industrial Co., Ltd. | Dispositif de combustion de securite pour un appareil de combustion a combustible liquide |
US4493634A (en) | 1982-04-28 | 1985-01-15 | Yang Jerry S C | Kerosene heating stove with temperature and carbonic oxide sensors |
JPS62294809A (ja) * | 1986-06-11 | 1987-12-22 | Sanyo Electric Co Ltd | 燃焼機器に使用される有毒ガス検知器 |
EP0440828A1 (fr) * | 1987-08-14 | 1991-08-14 | Hesham Hassan Gazzaz | Système de surveillance de gaz avec détection de fuites et coupure du courant du gaz |
EP0358925A2 (fr) * | 1988-09-14 | 1990-03-21 | Seiko Co.,Ltd. | Détecteur d'oxyde de carbone par combustion catalytique |
EP0439950A1 (fr) * | 1989-12-28 | 1991-08-07 | Honeywell Inc. | Détermination de la conductibilité thermique et de la chaleur massique des gaz dans des conditions normales |
FR2671406A1 (fr) | 1991-01-09 | 1992-07-10 | Am Chamrceun Rith | Detecteur d'etat d'alarme comme un detecteur de concentration dangereuse en gaz nocifs dans un milieu. |
EP0511582A1 (fr) * | 1991-04-29 | 1992-11-04 | EUROGIADA S.r.l. | Dispositif pour la détection des impuretés atmosphériques |
JPH06229539A (ja) * | 1993-02-05 | 1994-08-16 | Paloma Ind Ltd | 燃焼装置 |
US5418131A (en) * | 1994-04-13 | 1995-05-23 | General Signal Corporation | Humidity compensated carbon dioxide gas measurement and control |
JPH08178281A (ja) * | 1994-12-28 | 1996-07-12 | Tokyo Gas Co Ltd | 対coガス安全システム |
FR2731776A1 (fr) | 1995-03-16 | 1996-09-20 | Dtn Fr Sa | Dispositif de securite ou regulation passif pour appareil de chauffage |
Non-Patent Citations (3)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 012, no. 183 (M - 703) 28 May 1988 (1988-05-28) * |
PATENT ABSTRACTS OF JAPAN vol. 018, no. 607 (M - 1707) 18 November 1994 (1994-11-18) * |
PATENT ABSTRACTS OF JAPAN vol. 096, no. 011 29 November 1996 (1996-11-29) * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004074809A2 (fr) * | 2003-02-14 | 2004-09-02 | Stanton Enterprises, Inc. | Procede et appareil pour la detection fiable de monoxyde de carbone |
WO2004074809A3 (fr) * | 2003-02-14 | 2005-04-14 | Stanton Entpr Inc | Procede et appareil pour la detection fiable de monoxyde de carbone |
US8286603B2 (en) | 2007-01-31 | 2012-10-16 | Fumes Safety Llc | System and method for controlling toxic gas |
DE202009002820U1 (de) | 2009-02-27 | 2009-04-30 | Kermi Gmbh | Halte- und Justiervorrichtung für Heizkörper |
EP2224177A2 (fr) | 2009-02-27 | 2010-09-01 | KERMI GmbH | Dispositif d'empannage et d'ajustement pour radiateurs |
Also Published As
Publication number | Publication date |
---|---|
EP0869318B1 (fr) | 2002-09-18 |
FR2761756B1 (fr) | 1999-06-04 |
FR2761756A1 (fr) | 1998-10-09 |
DE69807967D1 (de) | 2002-10-24 |
ES2184215T3 (es) | 2003-04-01 |
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