EP2971964B1 - Procédé et dispositif de commande de combustion de brûleur - Google Patents

Procédé et dispositif de commande de combustion de brûleur Download PDF

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Publication number
EP2971964B1
EP2971964B1 EP13731491.0A EP13731491A EP2971964B1 EP 2971964 B1 EP2971964 B1 EP 2971964B1 EP 13731491 A EP13731491 A EP 13731491A EP 2971964 B1 EP2971964 B1 EP 2971964B1
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EP
European Patent Office
Prior art keywords
value
flame
ignition
values
fuel flow
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EP13731491.0A
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German (de)
English (en)
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EP2971964A1 (fr
Inventor
Bruno Giordano
Lorenzo Bicego
Franco Giacon
Nicola Trevisanato
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IDEA SpA
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/12—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
    • F23N5/123—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods 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
    • F23N5/24—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
    • F23N2227/00—Ignition or checking
    • F23N2227/02—Starting or ignition cycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/28—Ignition circuits

Definitions

  • the present invention relates to a method and a device for controlling the combustion of a burner for use in applications in which there is combustion.
  • a method and device are known from document DE102006006964 which discloses in combination all the features of the preamble of claim 1 and of claim 15.
  • the present invention is employed in atmospheric or premix burners.
  • the fuel is in a gas or liquid form and is fed to the burner through a supply pipe.
  • a possible use of the burner according to this invention is in the field of heating boilers.
  • control unit is principally that of ensuring non-toxic combustion, that is, combustion which does not produce exhaust gases, such as carbon monoxide, which are harmful to human health.
  • the control system uses an ionization current curve where the curve is defined as a function of the excess air index. It should be noted that the excess air index is widely defined as the ratio between the quantity of comburent air and the quantity of fuel and is indicated with the symbol I (lambda).
  • the ionization curve is created based on laboratory tests on the burner in a step preceding the installation of the burner at the premises of the final user.
  • the ionization current value can be measured (using the measurement instrumentation) during the operation of the burner and then compared with a preset threshold value (on the control unit) in such a way as to control the combustion.
  • the ionization current curve is substantially bell-shaped and there are therefore two different values for one ionization current value.
  • one of the values is for an excess air index greater than 1 (combustion without harmful gases) while the other is the value for an excess air index less than 1 (combustion with generation of harmful gases).
  • the ionization current curve is substantially bell-shaped and there are therefore two different values for one ionization current value.
  • one of the values is for an excess air index greater than 1 (combustion without harmful gases) while the other is the value for an excess air index less than 1 (combustion with generation of harmful gases).
  • this control method consists of periodically running a test routine during boiler operation to check if the excess air index value is greater than or less than 1. More specifically, the check routine involves increasing or decreasing the flow of comburent air or fuel and then measuring the corresponding variation of the flame ionization current to check if this increases or decreases; this makes it possible to obtain the curve slope and as a result the operating condition of the burner. For example, this routine involves regulating the ventilation means in such a way as to reduce the air flow and, as a result, the excess air index.
  • the reduction corresponds to a reduction of the ionization current value, this means that the burner is generating harmful gases. If, on the other hand, the reduction of the air flow corresponds to an increase of the ionization current value, this means that the burner is operating in the "good" zone (i.e. in the zone where harmful gases are not generated).
  • this control method requires a lengthy procedure for calibrating the flame ionization current detector in relation to the geometry of the burner in order to construct the flame ionization current curve which will then be used for the check routine.
  • the efficiency of this method is influenced by the ageing and/or deterioration of the detector and of the components, by the length of the discharge tubes, and by the presence of elements that obstruct the discharge tube which modify the actual trend of the ionization current curve with respect to the theoretical trend (normally calculated in a laboratory) and based on which the check is performed.
  • the purpose of the present invention is to provide a method and a device for controlling the combustion of a burner which overcome the aforementioned drawbacks.
  • the purpose of this invention is to provide a method and a device for controlling the combustion of a burner which are capable of adapting the combustion parameters of the burner as a function of the characteristic features of the system and of the components used.
  • An additional purpose of the present invention is to provide a method and a device for controlling the combustion of a burner which take into consideration any variations over time of variable combustion parameters.
  • a further purpose of this invention is to provide a method and a device for controlling the combustion of a burner which adapts itself to the variations over time of the combustion parameters.
  • the method for controlling the combustion of a burner 1 comprises at least a step for igniting the burner 1.
  • the step for igniting the burner 1 in turn comprises a first sub-step of feeding a predetermined quantity of comburent to the burner 1.
  • the predetermined quantity of comburent is fed to the burner 1 by means of comburent feed means 2.
  • the comburent is preferably air and the comburent feed means 2 comprise a fan 14.
  • the step of feeding a predetermined quantity of comburent to the burner 1 comprises switching on the comburent feed means 2 and at least keeping these switched on for a predetermined period of initial time (also called pre-ventilating time) before feeding fuel to the burner 1 in such a way as to clean the air space surrounding the burner 1.
  • a predetermined period of initial time also called pre-ventilating time
  • the predetermined initial time varies as a function of the characteristic features of the combustion chamber in which the burner is inserted.
  • the predetermined initial time is usually specified by the manufacturer of the equipment in which the burner is used.
  • the step of igniting the burner 1 in turn comprises a second sub-step in which the means for igniting the flame 4 during the next step are activated. These igniting means are designed to light the flame 4 on the burner 1.
  • the method comprises monitoring and controlling of the energy of the igniting means in order to optimize the lighting.
  • the igniting means comprises a system (of known type and not part of this invention) for generating a spark.
  • the energy of the igniting means is controlled by acting on the main characteristics of frequency, voltage and duration of the spark.
  • the ignition of the burner 1 comprises a third sub-step which comprises feeding a fuel to the burner 1 through a fuel supply pipe 3.
  • the step of feeding the fuel is implemented by increasing the flow of the fuel starting with a predetermined starting value.
  • the predetermined starting value of feeding the fuel is equal to zero.
  • the fuel flow is increased until the flame 4 is triggered in such a way as to ignite the burner 1. At this point, it is possible to switch off the flame 4 ignition means.
  • the method comprises a step implemented once the fuel has been ignited of testing if fuel flow ignition value, which caused the ignition of the burner 1, falls within a range of reference values.
  • the testing step in turn comprises two sub-steps:
  • the first sub-step comprises comparing the flow ignition value with the flow ignition values saved in a memory register 5 used for saving fuel parameters during the previous ignition steps.
  • This first sub-step comprises the following operations:
  • the step of checking if the flow ignition value falls within the interval of historical values comprises the sub-step of generating a warning signal 6, 7 if the fuel flow ignition value is outside the interval of historical values.
  • the sub-step of comparing the flow ignition value with the interval of theoretical values is implemented following the sub-step of comparing the flow ignition value with the historical flow ignition values.
  • the range of reference values comprises the interval of historical reference values and the interval of theoretical reference values.
  • the method comprises checking if the flow ignition value falls within a range of reference values provided by an algorithm for calculating fuel flow based on the history of the previous ignitions and on theoretical parameters.
  • the method comprises saving the fuel flow value in a memory register 5 used for saving fuel parameters and substantially keeping the fuel flow equal to the flow ignition value for at least a subsequent period of combustion time.
  • the method comprises saving the fuel flow ignition value (measured or calculated) which caused the ignition of the burner 1, in a memory register 5 used for saving fuel parameters. Moreover, the method also comprises saving, in the memory register 5 used for saving fuel parameters, the following values:
  • the method comprises checking, following the ignition of the fuel, if each of the abovementioned values falls within a respective range of reference values in the same way as the flow ignition value.
  • the burner 1 is switched off in such a way as to complete an operating cycle of the burner.
  • the operation of the burner 1 comprises a plurality of consecutive ignitions (each upstream of a respective cycle) of the burner 1 based on the need for heat requested by a user.
  • the sub-step of comparing the flow ignition value with the flow ignition values saved in the memory register 5 used for saving fuel parameters during the previous ignition steps comprises:
  • the predetermined percentage value is added to and subtracted from the average value calculated in such a way as to define an interval of historical values within which the fuel flow ignition value must fall.
  • the method comprises generating a warning signal 6, 7.
  • the step of determining the range of values comprises determining a first sub-interval of historical values and a second sub-interval of historical values which is greater than the first.
  • the first sub-interval of historical values is calculated based on a greater percentage (of the average of the flow ignition values saved in the memory register 5 used for saving fuel parameters of the fuel) than the percentage based on which the second sub-interval of historical values is calculated.
  • the sub-step of generating the warning signal comprises generating a first warning signal 6 if the fuel flow ignition value is outside the first range and of generating a second warning signal 7 if the fuel flow ignition value is outside the second range.
  • the generation of the first warning signal 6 may comprise a step of resetting the burner 1 because the current flow ignition value is still not yet far enough away from the average of the fuel flow ignition values saved in the memory register 5 used for saving fuel parameters of the fuel.
  • the step of increasing the fuel flow until the flame 4 is ignited comprises a first sub-step of detecting the presence of the flame 4 using detection means 8 located at the position of the flame 4.
  • the step of increasing the fuel flow comprises a second sub-step of transmitting the information relating to the presence of flame 4 to a control unit 12 controlling the fuel flow to keep the flow ignition value fixed.
  • the control unit is connected to on-off and regulating means 9 (preferably a regulator valve) controlling the quantity of fuel flowing in the related supply pipe 3 to reach the burner 1.
  • the detection means 8 are designed to detect a combustion value representing combustion quality.
  • the combustion value is defined by the flame 4 ionization current.
  • the detection means detect the flame ionization current value.
  • the combustion value is defined by the flame ionization current and/or by other parameters representing combustion quality.
  • the parameters representing combustion quality are: the temperature of the flame and/or the composition of its light emission spectrum and/or the composition of the ionized plasma and/or the residual combustion products.
  • the method comprises a step of comparing the combustion value detected with the historical flame 4 values saved in a memory register 10 used for saving flame values during the previous lighting steps, in such a way as to check if the combustion value falls within an interval of reference values the same way as for the fuel flow ignition value.
  • the method comprises a subsequent step of saving the combustion value detected in a memory register 10 for saving flame values of the current if the combustion value falls within the interval of historical reference values.
  • the step of comparing the combustion value detected with the flame ionization values saved in the memory register 10 for saving flame values comprises the sub-steps of:
  • the step of checking if the flame ionization current value falls within an interval of historical flame values comprises the sub-step of generating a warning signal if the flame ionization current value is outside the interval historical flame values.
  • the method comprises checking if the combustion value falls within an interval of theoretical flame values as a function of the characteristic features of the burner, of the fuel and of the comburent.
  • the method comprises a step of calculating a theoretical curve 11 representing the combustion value as a function of the excess air index value.
  • the calculation step is performed in a laboratory before the installation of the burner 1 at the premises of the final user.
  • the method comprises a step of detecting the theoretical flame value on the theoretical curve 11 corresponding to the fuel flow ignition value which caused the ignition of the burner 1.
  • the combustion value detected by the detection means 8 is compared with an interval of theoretical values as a function of the theoretical flame value on the theoretical curve 11 corresponding to the fuel flow ignition value. Furthermore, the interval of theoretical values is determined as a percentage of the theoretical flame value added to and subtracted from the theoretical flame value.
  • the method comprises a step of generating a correction signal 13 if the combustion value departs from the interval of theoretical values.
  • This correction signal 13 represents the difference between the theoretical value and the flame value detected for a predetermined quantity of fuel.
  • the step of comparing the combustion value detected with a theoretical curve representing the theoretical combustion value is performed after a period of stabilization of the flame.
  • the measured ionization current value which is detected after the stabilization period, must be available.
  • the method comprises a correction step (implemented after the step of comparing the ionization current value with the theoretical curve representing the ionization current value) which comprises modifying the fuel flow to the burner as a function of the contents of the correction signal 13 generated.
  • a correction step (implemented after the step of comparing the ionization current value with the theoretical curve representing the ionization current value) which comprises modifying the fuel flow to the burner as a function of the contents of the correction signal 13 generated.
  • range of powers means the plurality of fuel flow values corresponding to the different requests for heat by the user.
  • Figure 1 shows a graph of the trend of the theoretical curve 11 representing the ionization current value as a function of the excess air index value.
  • the implementation of the method according to this invention comprises directly or indirectly measuring a group of values (flame signal, fuel flow, comburent flow) defining a vector of values and comparing them with respective historical values saved in the historical memory registers to check the consistency of said values measured with the history of the ignitions, and with respective theoretical values. Following this comparison, the method comprises correcting the values measured where necessary.
  • a group of values flame signal, fuel flow, comburent flow
  • a further part of this invention is a device for controlling the combustion of a burner 1 for implementing the method according to claim 1.
  • This device comprises:
  • the detection means 8 for detecting the flame 4 comprise a probe with an electrode (of known type) for detecting the flame 4 ionization current.
  • control unit 12 is designed to perform the steps of the control method as described herein.
  • control unit 12 is designed to:
  • FIG. 2 shows the device according to the present invention. It should be noted that the control unit 12 is designed to manage saving the excess air index and fuel flow ignition values in the respective memory registers 5, 10.
  • control unit 12 comprises a first sub-unit 12a and a second sub-unit 12b.
  • the first sub-unit 12a is designed to control the on-off and regulating means 9 (valve) and to control the comburent feed means 2 (fan 14).
  • the second sub-unit 12b is designed to receive the results of the comparisons between the fuel flow ignition value and the historical flow ignition values saved in the memory register 5. Moreover, the second sub-unit 12b is designed to compare the fuel flow ignition value with the respective predetermined theoretical values. Thus, the second sub-unit 12b is designed to transmit the correction signal to the first sub-unit 12a if the control of the fuel and/or comburent flow must be corrected.
  • This invention fulfils the purposes outlined above.
  • this invention ensures igniting the burner at an excess air index greater than 1 and thereby prevents operation in the zone for generating harmful gases.
  • ignition occurs during the gradual increase of the fuel flow which allows decreasing the excess air index value by a theoretically infinite value towards the part of the curve with an excess air index greater than one and representing the ionization current.
  • this method takes advantage of the natural principle of lighting the flame when the ratio between air and fuel is optimal.
  • the flame is always lit at the part of the ionization current curve for which the excess air index value is greater than 1.
  • Figure 1 indicates, by way of example, a possible ignition point PA of the burner along the ionization current curve.
  • ignition occurs with a variable quantity of fuel as a function of the actual conditions of the burner and of the variations over time of the combustion parameters. For example, the ageing of the burner will result in ignition with a greater or lesser fuel flow value with respect to the historic one.
  • the control of the burner 1 is self-adaptive as a function of the changes influencing combustion.
  • the device checks, in any case, the fuel flow ignition values and the flame ionization current values detected with a range predetermined by the historical ignition values and with an operating margin calculated with reference to the predetermined theoretical laboratory values in such a way as to be able to modify, where necessary, the fuel flow as a function of a correction factor detected.
  • this invention enables identification and learning of the characteristic features of the burner and of the components used and adapts the combustion parameters accordingly.
  • this invention provides a method and a device for controlling the combustion of a burner which automatically recognize the type of comburent in use and adapt the combustion parameters accordingly. In effect, once the fuel flow, comburent flow and flame values are measured, it is possible to deduce the type of fuel used by the burner.

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

Claims (15)

  1. Procédé de commande de combustion d'un brûleur (1), comprenant :
    - au moins une étape consistant à allumer le brûleur (1) où l'étape d'allumage du brûleur (1) comprend les sous-étapes suivantes :
    - alimenter une quantité prédéterminée de comburant au brûleur (1) ;
    - activer des moyens d'allumage de flamme (4) afin d'allumer la flamme (4) lors de l'étape suivante ;
    - alimenter en un carburant le brûleur (1) par un tuyau d'alimentation en carburant (3) ; l'étape consistant à alimenter en carburant étant mise en oeuvre en augmentant le débit de carburant en commençant par une valeur de démarrage prédéterminée ;
    - augmenter le débit de carburant jusqu'à ce que la flamme (4) s'enflamme de manière à allumer le brûleur (1) ; ladite étape consistant à augmenter le débit de carburant comprenant les sous-étapes suivantes :
    - détecter la présence de la flamme (4) en utilisant des moyens de détection (8) situés en correspondance de la position de la flamme (4) ; lesdits moyens de détection (8) étant conçus pour générer une valeur de combustion représentant la qualité de combustion détectée ;
    - transmettre les informations relatives à la présence de flamme (4) à une unité de commande (12) servant à commander le débit de carburant pour maintenir substantiellement la valeur du débit de carburant égale à la valeur d'allumage du débit de carburant ;
    - tester si la valeur d'allumage du débit de carburant allumant le brûleur (1) est comprise dans une fourchette de valeurs de référence ;
    - si la valeur d'allumage du débit de carburant est comprise dans une fourchette de valeurs de référence, enregistrer la valeur de débit de carburant dans un registre de mémoire (5) utilisé pour enregistrer des paramètres de carburant et pour maintenir substantiellement le débit de carburant égal à la valeur d'allumage du débit pendant au moins une période de temps de combustion suite à l'allumage ;
    caractérisé en ce qu'il comprend une étape consistant à vérifier si la valeur de combustion est comprise dans un intervalle de valeurs de référence ; le procédé comprenant une étape consistant à enregistrer la valeur de combustion détectée dans un registre de mémoire (10) pour enregistrer les valeurs de flamme de la flamme si la valeur de combustion est comprise dans l'intervalle des valeurs de référence.
  2. Procédé selon la revendication 1, caractérisé en ce que l'étape consistant à tester si la valeur d'allumage du débit de carburant est comprise dans une fourchette de valeurs de référence comprend une sous-étape consistant à comparer la valeur d'allumage du débit de carburant aux valeurs d'allumage de débit enregistrées dans le registre de mémoire (5) utilisé pour enregistrer des paramètres de carburant durant les étapes d'allumage précédentes.
  3. Procédé selon la revendication 2, caractérisé en ce que la sous-étape consistant à comparer la valeur d'allumage du débit de carburant aux valeurs d'allumage de débit enregistrées dans le registre de mémoire (5) utilisé pour enregistrer des paramètres de carburant durant les étapes d'allumage précédentes, comprend les opérations suivantes :
    - calculer la moyenne des valeurs d'allumage du débit de carburant enregistrées dans le registre de mémoire (5) utilisé pour enregistrer des paramètres de carburant durant les étapes d'allumage précédentes ;
    - déterminer un intervalle de valeurs de référence historiques exprimé en pourcentage de la valeur moyenne ajoutée et soustraite à la valeur moyenne ; la fourchette de valeurs de référence comprenant l'intervalle des valeurs de référence historiques ;
    - comparer la valeur d'allumage du débit de carburant à l'intervalle prédéterminé de valeurs de référence historiques de manière à tester si la valeur d'allumage du débit de carburant est comprise dans l'intervalle de valeurs historiques.
  4. Procédé selon la revendication 3, caractérisé en ce que l'étape consistant à vérifier si la valeur d'allumage du débit de carburant est comprise dans l'intervalle des valeurs historiques comprend la sous-étape consistant à générer un signal d'avertissement (6), (7) si la valeur d'allumage du débit de carburant se trouve en dehors de l'intervalle des valeurs historiques.
  5. Procédé selon la revendication 4, caractérisé en ce que l'étape consistant à déterminer l'intervalle des valeurs de référence historiques comprend la détermination d'un premier sous-intervalle de valeurs de référence historiques et un second sous-intervalle de valeurs de référence historiques supérieur au premier sous-intervalle ; la sous-étape consistant à générer le signal d'avertissement comprend la génération d'un premier signal d'avertissement (6) si la valeur d'allumage du débit de carburant se trouve en dehors du premier sous-intervalle, et la génération d'un second signal d'avertissement (7) si la valeur d'allumage du débit de carburant se trouve en dehors du second sous-intervalle.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'étape consistant à vérifier si la valeur d'allumage du débit de carburant est comprise dans la fourchette des valeurs de référence comprend une sous-étape consistant à comparer la valeur d'allumage du débit de carburant à un intervalle de valeurs théoriques en fonction de valeurs d'allumage de débit théoriques prédéterminées en fonction des caractéristiques techniques du brûleur, du carburant et du comburant ; la fourchette de valeurs de référence comprenant l'intervalle des valeurs de référence théoriques.
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'étape consistant à vérifier si la valeur de combustion est comprise dans un intervalle de valeurs de référence comprend une sous-étape consistant à comparer la valeur de combustion aux valeurs de flamme historiques enregistrées dans le registre de mémoire (10) utilisé pour enregistrer des valeurs de flamme durant les étapes d'allumage précédentes.
  8. Procédé selon la revendication 7, caractérisé en ce que la sous-étape consistant à comparer la valeur de combustion aux valeurs de flamme historiques enregistrées dans le registre de mémoire (10) comprend les opérations suivantes :
    - calculer la moyenne des valeurs de flamme historiques enregistrées dans le registre de mémoire (10) pour enregistrer des valeurs de flamme de flamme suivant les étapes d'allumage précédentes ;
    - déterminer l'intervalle des valeurs de flamme historiques exprimé en pourcentage de la valeur moyenne ajoutée et soustraite à cette valeur moyenne.
  9. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'étape consistant à vérifier si la valeur de combustion est comprise dans un intervalle de valeurs historiques comprend la sous-étape consistant à générer un signal d'avertissement si la valeur de combustion (4) se trouve en dehors de cet intervalle de valeurs.
  10. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'étape consistant à vérifier si la valeur de combustion est comprise dans un intervalle de valeurs de référence comprend une sous-étape consistant à vérifier si la valeur de combustion est comprise dans un intervalle de valeurs de flamme théoriques en fonction des caractéristiques techniques du brûleur, du carburant et du comburant.
  11. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend une étape consistant à calculer une courbe théorique (11) représentant la valeur de combustion en fonction de la valeur de l'indice d'excès d'air.
  12. Procédé selon la revendication 11, caractérisé en ce qu'il comprend une étape consistant à détecter la valeur de flamme théorique sur la courbe théorique (11) correspondant à la valeur d'allumage du débit de carburant provoquant l'allumage du brûleur (1) ; la valeur de combustion détectée par les moyens de détection (8) étant comparée à un intervalle de valeurs théoriques en fonction de la valeur de flamme théorique sur la courbe théorique (11) correspondant à la valeur d'allumage du débit de carburant.
  13. Procédé selon la revendication 12, caractérisé en ce que l'intervalle des valeurs théoriques est déterminé en pourcentage de la valeur de flamme théorique ajoutée et soustraite à la valeur de flamme théorique.
  14. Procédé selon les revendications 12 ou 13, caractérisé en ce qu'il comprend :
    - une étape consistant à générer un signal de correction (13) si la valeur de combustion s'écarte de l'intervalle de valeurs théoriques ; le signal de correction (13) représentant la différence entre la valeur théorique et la valeur de flamme détectée pour une quantité prédéterminée de carburant ;
    - une étape de correction comprenant la modification du débit de carburant au brûleur en fonction du contenu du signal de correction (13) généré.
  15. Dispositif de commande de la combustion d'un brûleur (1) servant à mettre en oeuvre le procédé selon la revendication 1 ci-dessus, comprenant :
    - des moyens à action par tout ou rien et de réglage (9) montés le long du tuyau d'alimentation (3) servant à régler le débit de carburant vers le brûleur (1) ;
    - des moyens d'alimentation (2) servant à alimenter le comburant vers le brûleur (1) ;
    - des moyens d'allumage de flamme (4) reliés lors de l'utilisation avec le brûleur (1) ;
    - des moyens de détection (8) servant à détecter la présence d'une flamme (4) reliés au brûleur (1) et situés en correspondance de la position de la flamme (4) pour détecter la présence de flamme (4) ; lesdits moyens de détection (8) étant conçus pour générer une valeur de combustion représentant la qualité de combustion détectée ;
    - une unité de commande (12) reliée aux moyens à action par tout ou rien et de réglage (9), aux moyens d'allumage de flamme (4), aux moyens d'alimentation en comburant (2) et aux moyens de détection (8) ;
    ladite unité de commande (12) étant conçue pour :
    - activer les moyens d'alimentation en comburant (2) et par la même alimenter le comburant au brûleur ;
    - activer les moyens d'allumage de flamme (4) ;
    - régler l'ouverture des moyens à action par tout ou rien et de réglage (9) d'une position initiale vers une position d'ouverture en augmentant par la même le débit de carburant ;
    - détecter l'allumage de la flamme (4) en utilisant les moyens de détection (8) ;
    - transmettre les informations relatives à la présence de flamme (4) à une unité de commande (12) servant à commander le débit de carburant pour maintenir substantiellement la valeur du débit de carburant égale à la valeur d'allumage du débit de carburant ;
    - vérifier si la valeur d'allumage du débit de carburant provoquant l'allumage du brûleur (1) est comprise dans une fourchette de valeurs de référence ;
    - maintenir la position atteinte par les moyens à action par tout ou rien et de réglage (9) fixe pendant au moins une période de temps de combustion de manière à maintenir la valeur d'allumage du débit de carburant alimentée au brûleur (1), qui a provoqué l'allumage du brûleur (1), fixe pendant cette période ;
    - si la valeur d'allumage du débit de carburant est comprise dans la fourchette des valeurs de référence, enregistrer la valeur du débit de carburant dans un registre de mémoire (10) utilisé pour enregistrer des valeurs de flamme ;
    caractérisé en ce que l'unité de commande est conçue de plus pour :
    - vérifier si la valeur de combustion est comprise dans un intervalle de valeurs de référence ;
    - enregistrer la valeur de combustion détectée dans un registre de mémoire (10) pour enregistrer des valeurs de flamme de la flamme si la valeur de combustion est comprise dans l'intervalle de valeurs de référence.
EP13731491.0A 2013-03-11 2013-03-11 Procédé et dispositif de commande de combustion de brûleur Not-in-force EP2971964B1 (fr)

Applications Claiming Priority (1)

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PCT/IB2013/051918 WO2014140687A1 (fr) 2013-03-11 2013-03-11 Procédé et dispositif de commande de combustion de brûleur

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EP2971964A1 EP2971964A1 (fr) 2016-01-20
EP2971964B1 true EP2971964B1 (fr) 2017-11-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018114355A1 (de) * 2018-06-15 2019-12-19 Viessmann Werke Gmbh & Co Kg Verfahren zum Betrieb eines Brenners
DE102020114044A1 (de) 2020-05-26 2021-12-02 Vaillant Gmbh Verfahren und Vorrichtung zur Erkennung von Fehlern beim Zünden eines Brenners mit einem Gebläse für die Zufuhr von Luft und einem Brennstoffventil

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015221154A1 (de) * 2015-10-29 2017-05-04 Robert Bosch Gmbh Heizgerätevorrichtung und Verfahren zum Betrieb einer Heizgerätevorrichtung
ITUB20159682A1 (it) 2015-12-23 2017-06-23 Idea S P A Metodo e dispositivo di controllo della combustione di un bruciatore

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59604283D1 (de) 1995-10-25 2000-03-02 Stiebel Eltron Gmbh & Co Kg Verfahren und Schaltung zur Regelung eines Gasbrenners
AT405327B (de) * 1996-09-30 1999-07-26 Vaillant Gmbh Verfahren zum starten eines gasbrenners
AT406514B (de) * 1997-04-28 2000-06-26 Vaillant Gmbh Verfahren zur zündung eines gasbeheizten brenners
DE102006006964B4 (de) * 2006-02-14 2012-09-06 Ebm-Papst Landshut Gmbh Verfahren zum Starten einer Feuerungseinrichtung bei unbekannten Rahmenbedingungen
EP2550483B1 (fr) 2010-03-24 2018-03-07 Bertelli & Partners S.R.L. Procédé et dispositif pour commander une chaudière atmosphérique comportant une chambre de combustion étanche à l'air

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018114355A1 (de) * 2018-06-15 2019-12-19 Viessmann Werke Gmbh & Co Kg Verfahren zum Betrieb eines Brenners
DE102020114044A1 (de) 2020-05-26 2021-12-02 Vaillant Gmbh Verfahren und Vorrichtung zur Erkennung von Fehlern beim Zünden eines Brenners mit einem Gebläse für die Zufuhr von Luft und einem Brennstoffventil

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WO2014140687A1 (fr) 2014-09-18

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