EP3396248B1 - Procédé de détection d'erreurs d'une valve de sécurité de gaz pour appareils de chauffage - Google Patents

Procédé de détection d'erreurs d'une valve de sécurité de gaz pour appareils de chauffage Download PDF

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Publication number
EP3396248B1
EP3396248B1 EP18169736.8A EP18169736A EP3396248B1 EP 3396248 B1 EP3396248 B1 EP 3396248B1 EP 18169736 A EP18169736 A EP 18169736A EP 3396248 B1 EP3396248 B1 EP 3396248B1
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EP
European Patent Office
Prior art keywords
gas
safety valve
gas safety
heating devices
detecting defects
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.)
Active
Application number
EP18169736.8A
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German (de)
English (en)
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EP3396248A1 (fr
Inventor
Klaus Richter
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.)
Vaillant GmbH
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Vaillant GmbH
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Publication date
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Publication of EP3396248A1 publication Critical patent/EP3396248A1/fr
Application granted granted Critical
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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
    • F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
    • F23N5/184—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel 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
    • F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
    • F23N2005/181—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel using detectors sensitive to rate of flow of air

Definitions

  • the invention relates to a diagnostic option for detecting faults in a gas safety valve in heating devices.
  • Burner systems for heating devices are monitored using so-called gas burner controls (GFA). If no flame is formed or detected after the ignition process, the GFA switches the heater into a fault state.
  • GFA gas burner controls
  • the patent application EP 0 778 448 A2 discloses a combustion control system for detecting an improper combustion condition.
  • the delay during the ignition process is detected by means of a flow sensor for the combustion air or the fuel gas.
  • the physical effect is used that a pressure wave spreads upstream in the gas and combustion air supply during ignition. If the measured flow rate falls below a specified value during ignition, correct ignition is assumed.
  • the heater 1 shown (for example a gas condensing boiler) is equipped with a burner system in which the gas and the combustion air are brought together in front of a blower 2. This mixture is then transported by the blower 2 to the burner 3, where the combustion then takes place.
  • a sensor 6 In the supply air duct 4 to the mixing point 5 of gas and air, a sensor 6 is attached, which gives an electrical signal proportional to the air flow to an electronic evaluation unit 7. In the event of a faulty ignition, this signal is evaluated by the evaluation electronics.
  • the gradient of the sensor signal is evaluated.
  • the sensor signal remains constant in the following seconds ( Fig. 2 ).
  • a negative gradient of the order of, for example, up to 10% of the measured value occurs for a few seconds when the sensor signals less than 2s ( Fig. 3 ).

Landscapes

  • 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)

Claims (1)

  1. Procédé de reconnaissance d'erreurs au niveau d'une valve de sécurité de gaz (8) pour des appareils de chauffage dans le cas d'un allumage défectueux, caractérisé par les étapes :
    - la mesure du courant de masse ou de volume de l'air de combustion amené à un appareil de chauffage (1) au moyen d'un capteur (6),
    - la formation du gradient du signal de mesure du capteur (6),
    - l'association de l'étendue du gradient aux images d'erreur enregistrées,
    - la reconnaissance de l'erreur au moyen du gradient associé,
    - l'émission d'un signal d'erreur.
EP18169736.8A 2017-04-28 2018-04-27 Procédé de détection d'erreurs d'une valve de sécurité de gaz pour appareils de chauffage Active EP3396248B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017109176 2017-04-28

Publications (2)

Publication Number Publication Date
EP3396248A1 EP3396248A1 (fr) 2018-10-31
EP3396248B1 true EP3396248B1 (fr) 2020-03-11

Family

ID=62089586

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18169736.8A Active EP3396248B1 (fr) 2017-04-28 2018-04-27 Procédé de détection d'erreurs d'une valve de sécurité de gaz pour appareils de chauffage

Country Status (1)

Country Link
EP (1) EP3396248B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4056919A1 (fr) 2021-03-11 2022-09-14 ebm-papst Landshut GmbH Dispositif de chauffage comportant un capteur de gaz et son procédé de fonctionnement

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019107369A1 (de) * 2019-03-22 2020-09-24 Vaillant Gmbh Verfahren zum Prüfen des Vorhandenseins einer Rückschlagklappe in einer Heizungsanlage
DE102022103736A1 (de) * 2022-02-17 2023-08-17 Vaillant Gmbh Verfahren zur Inbetriebnahme eines Heizgerätes, Computerprogramm, Regel- und Steuergerät, Heizgerät und Verwendung eines Parameters

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3366516B2 (ja) * 1995-12-06 2003-01-14 株式会社山武 燃焼制御装置
DE102004004065B4 (de) * 2003-01-30 2015-10-01 Vaillant Gmbh Verfahren zur vorbeugenden Fehlererkennung bei elektronisch geregelten oder gesteuerten Heizungsgeräten
DE102008006120B4 (de) * 2008-01-25 2016-08-18 Eberspächer Climate Control Systems GmbH & Co. KG Verfahren zur Erkennung einer Strömungsverdämmung im Verbrennungsluftströmungsweg oder/und im Abgasströmungsweg eines brennstoffbetriebenen Heizgerätes, insbesondere für ein Fahrzeug
EP2995861B1 (fr) * 2014-09-10 2019-08-07 Siemens Aktiengesellschaft Actionnement de soupape et diagnostic

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4056919A1 (fr) 2021-03-11 2022-09-14 ebm-papst Landshut GmbH Dispositif de chauffage comportant un capteur de gaz et son procédé de fonctionnement
DE102021105962A1 (de) 2021-03-11 2022-09-15 Ebm-Papst Landshut Gmbh Heizvorrichtung aufweisend einen Gassensor und Verfahren zu deren Betrieb

Also Published As

Publication number Publication date
EP3396248A1 (fr) 2018-10-31

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