FR2426256A1 - Systeme electronique detecteur de presence de flamme - Google Patents

Systeme electronique detecteur de presence de flamme

Info

Publication number
FR2426256A1
FR2426256A1 FR7814922A FR7814922A FR2426256A1 FR 2426256 A1 FR2426256 A1 FR 2426256A1 FR 7814922 A FR7814922 A FR 7814922A FR 7814922 A FR7814922 A FR 7814922A FR 2426256 A1 FR2426256 A1 FR 2426256A1
Authority
FR
France
Prior art keywords
flame
capacitor
igniter
discharges
burner
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Withdrawn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
FR7814922A
Other languages
English (en)
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.)
Ulgor SCL
Original Assignee
Ulgor SCL
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 Ulgor SCL filed Critical Ulgor SCL
Priority to FR7814922A priority Critical patent/FR2426256A1/fr
Publication of FR2426256A1 publication Critical patent/FR2426256A1/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Withdrawn legal-status Critical Current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
    • F23N5/02—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
    • F23N5/126—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 electrical or electromechanical means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
    • G01N27/626—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using heat to ionise a gas

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)

Abstract

Le sysyème selon l'invention est du type qui comporte, intégré dans un circuit électrique, un élément de contrôle excité en fonction de la présence ou de l'absence de la flamme à détecter entre les deux électrodes du circuit Ce système se distingue en ce que le circuit électrique comporte un condensateur qui se charge à travers la résistance électrique constituée par la flamme à détecter, jusqu'à ce que soit atteinte la tension de déclenchement de l'élément de contrôle, de préférence une lampe à décharge gazeuse, ce condensateur se déchargeant à travers l'élément de contrôle, le tout de façon que la répétition des cycles de charge et de décharge du condensateur provoque l'excitation intermittente de l'élément de contrôle et, par conséquent, la détection de la flamme.
FR7814922A 1978-05-19 1978-05-19 Systeme electronique detecteur de presence de flamme Withdrawn FR2426256A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7814922A FR2426256A1 (fr) 1978-05-19 1978-05-19 Systeme electronique detecteur de presence de flamme

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7814922A FR2426256A1 (fr) 1978-05-19 1978-05-19 Systeme electronique detecteur de presence de flamme

Publications (1)

Publication Number Publication Date
FR2426256A1 true FR2426256A1 (fr) 1979-12-14

Family

ID=9208471

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7814922A Withdrawn FR2426256A1 (fr) 1978-05-19 1978-05-19 Systeme electronique detecteur de presence de flamme

Country Status (1)

Country Link
FR (1) FR2426256A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1053198A (fr) * 1951-04-05 1954-02-01 Landis & Gyr Ag Dispositif de surveillance des flammes, en particulier des flammes non éclairantes
DE1000555B (de) * 1954-03-31 1957-01-10 Landis & Gyr Ag Flammenueberwachungseinrichtung, bei welcher von der Gleichrichterwirkung der Flamme Gebrauch gemacht wird
US3351818A (en) * 1965-01-08 1967-11-07 American Gas Ass A. c. -operable voltage threshold circuits

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1053198A (fr) * 1951-04-05 1954-02-01 Landis & Gyr Ag Dispositif de surveillance des flammes, en particulier des flammes non éclairantes
DE1000555B (de) * 1954-03-31 1957-01-10 Landis & Gyr Ag Flammenueberwachungseinrichtung, bei welcher von der Gleichrichterwirkung der Flamme Gebrauch gemacht wird
US3351818A (en) * 1965-01-08 1967-11-07 American Gas Ass A. c. -operable voltage threshold circuits

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Legal Events

Date Code Title Description
ST Notification of lapse