FR2379769A1 - Montage electronique pour garde-flamme de surete - Google Patents

Montage electronique pour garde-flamme de surete

Info

Publication number
FR2379769A1
FR2379769A1 FR7802604A FR7802604A FR2379769A1 FR 2379769 A1 FR2379769 A1 FR 2379769A1 FR 7802604 A FR7802604 A FR 7802604A FR 7802604 A FR7802604 A FR 7802604A FR 2379769 A1 FR2379769 A1 FR 2379769A1
Authority
FR
France
Prior art keywords
flame
frequency
alternating current
detector
flame guard
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Withdrawn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
FR7802604A
Other languages
English (en)
Inventor
Werner Stapfer
Robert Von Euw
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.)
Landis and Gyr AG
Original Assignee
Landis and Gyr AG
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 Landis and Gyr AG filed Critical Landis and Gyr AG
Publication of FR2379769A1 publication Critical patent/FR2379769A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/08—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements
    • F23N5/082—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2229/00—Flame sensors
    • F23N2229/06—Flame sensors with periodical shutters; Modulation signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Control Of Combustion (AREA)

Abstract

Garde-flamme pour le mazout ou le gaz. Il comporte un détecteur de flamme 4, 5 alimenté par un courant alternatif 11 par l'intermédiaire d'une diode 9, et un diaphragme 7 interrompant périodiquement, sous l'influence de la fréquence du courant alternatif, le rayonnement projeté sur le détecteur de flamme, ainsi qu'un dispositif 12, 13, 14 de comparaison des impulsions de demi-onde redressées sur une seule alternance apparaissant pendant les cycles éclairement/ obscurité. Un amplificateur 17 ne répond qu'entre des limites prédéterminées du taux d'impulsion du signal alternatif, de la fréquence et de la position de phase. Application notamment avec des détecteurs de flamme à ultraviolets.
FR7802604A 1977-02-02 1978-01-31 Montage electronique pour garde-flamme de surete Withdrawn FR2379769A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH124077A CH604086A5 (fr) 1977-02-02 1977-02-02

Publications (1)

Publication Number Publication Date
FR2379769A1 true FR2379769A1 (fr) 1978-09-01

Family

ID=4205751

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7802604A Withdrawn FR2379769A1 (fr) 1977-02-02 1978-01-31 Montage electronique pour garde-flamme de surete

Country Status (4)

Country Link
CH (1) CH604086A5 (fr)
DE (1) DE2707120C3 (fr)
FR (1) FR2379769A1 (fr)
GB (1) GB1588802A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2496845A1 (fr) * 1980-12-22 1982-06-25 Landis & Gyr Ag Controleur de flamme a securite intrinseque
EP0308831A2 (fr) * 1987-09-21 1989-03-29 Honeywell Inc. Système de traitement du signal de sortie d'un détecteur de flamme

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4280184A (en) * 1979-06-26 1981-07-21 Electronic Corporation Of America Burner flame detection
DE3026787C2 (de) * 1980-06-19 1982-08-26 LGZ Landis & Gyr Zug AG, 6301 Zug Eigensicherer Flammenwächter
CH655778A5 (de) * 1981-09-17 1986-05-15 Landis & Gyr Ag Signal-aufbereitungsschaltung zur eigensicheren verarbeitung von signalen eines mit gleichspannung arbeitenden fuehlers.
DE3142987C2 (de) * 1981-09-30 1984-08-02 LGZ Landis & Gyr Zug AG, Zug Vorrichtung zur Überwachung von Öl- und Gasflammen bei wahlweiser Verfeuerung von Öl oder von gasförmigen Brennstoffen
DE3501719A1 (de) * 1984-07-28 1986-01-30 Webasto-Werk W. Baier GmbH & Co, 8035 Gauting Brennstoffbetriebenes heizgeraet

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1083436B (de) * 1959-03-04 1960-06-15 Siemens Ag Fotoelektrische UEberwachungseinrichtung
FR1372049A (fr) * 1963-08-05 1964-09-11 Electronics Corp America Perfectionnements apportés aux circuits des dispositifs détecteurs de rayonnements, destinés à être appliqués dans le contrôle des flammes
FR1413496A (fr) * 1964-11-03 1965-10-08 Electronics Corp America Perfectionnements aux appareils de surveillance
US3274580A (en) * 1962-08-10 1966-09-20 Electronics Corp America Radiation detection device circuits for use in flame sensing
DE1256828B (de) * 1964-07-17 1967-12-21 Philips Patentverwaltung Betriebsueberwachungsschaltung fuer Gas- oder OElfeuerungsanlagen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3281812A (en) * 1963-11-05 1966-10-25 Electronics Corp America Control apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1083436B (de) * 1959-03-04 1960-06-15 Siemens Ag Fotoelektrische UEberwachungseinrichtung
US3274580A (en) * 1962-08-10 1966-09-20 Electronics Corp America Radiation detection device circuits for use in flame sensing
FR1372049A (fr) * 1963-08-05 1964-09-11 Electronics Corp America Perfectionnements apportés aux circuits des dispositifs détecteurs de rayonnements, destinés à être appliqués dans le contrôle des flammes
DE1256828B (de) * 1964-07-17 1967-12-21 Philips Patentverwaltung Betriebsueberwachungsschaltung fuer Gas- oder OElfeuerungsanlagen
FR1413496A (fr) * 1964-11-03 1965-10-08 Electronics Corp America Perfectionnements aux appareils de surveillance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2496845A1 (fr) * 1980-12-22 1982-06-25 Landis & Gyr Ag Controleur de flamme a securite intrinseque
EP0308831A2 (fr) * 1987-09-21 1989-03-29 Honeywell Inc. Système de traitement du signal de sortie d'un détecteur de flamme
EP0308831A3 (en) * 1987-09-21 1989-05-31 Honeywell Inc. System for processing a flame sensor output signal

Also Published As

Publication number Publication date
GB1588802A (en) 1981-04-29
DE2707120A1 (de) 1978-08-03
CH604086A5 (fr) 1978-08-31
DE2707120B2 (de) 1980-09-25
DE2707120C3 (de) 1981-06-19

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Legal Events

Date Code Title Description
ST Notification of lapse