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GB895199A - Flame detection circuit - Google Patents

Flame detection circuit

Info

Publication number
GB895199A
GB895199A GB4604/61A GB460461A GB895199A GB 895199 A GB895199 A GB 895199A GB 4604/61 A GB4604/61 A GB 4604/61A GB 460461 A GB460461 A GB 460461A GB 895199 A GB895199 A GB 895199A
Authority
GB
United Kingdom
Prior art keywords
tube
flame
relay
capacitor
discharge
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.)
Expired
Application number
GB4604/61A
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.)
Electronics Corp of America
Original Assignee
Electronics Corp of America
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 Electronics Corp of America filed Critical Electronics Corp of America
Publication of GB895199A publication Critical patent/GB895199A/en
Expired 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
    • F23N5/123—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
    • F23N2229/00—Flame sensors
    • F23N2229/12—Flame sensors with flame rectification current detecting means

Landscapes

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

Abstract

895,199. Discharge - tube relay circuits. ELECTRONICS CORPORATION OF AMERICA. Feb. 7, 1961 [March 8, 1960], No. 4604/61. Class 40(6). [Also in Groups X1 and XL(b)] A flame detection circuit comprises a coldcathode discharge tube 15 and a relay 18 connected in series across taps 7, 10 of the secondary winding of a transformer. A capacitor 14 is charged from the upper end of the transformer winding via the rectifying property of electrode 12 located in the flame of burner 11, so that the tube 15 fires, energizing relay 18. Energization is maintained on negative half cycles by the charge on capacitor 23. Failure of the flame results in discharge of capacitor 14, extinguishing of tube 15 at the next negative half cycle and release of relay 18. The flame electrode 12 may be replaced by a photoemissive cell:
GB4604/61A 1960-03-08 1961-02-07 Flame detection circuit Expired GB895199A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US895199XA 1960-03-08 1960-03-08

Publications (1)

Publication Number Publication Date
GB895199A true GB895199A (en) 1962-05-02

Family

ID=22218089

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4604/61A Expired GB895199A (en) 1960-03-08 1961-02-07 Flame detection circuit

Country Status (1)

Country Link
GB (1) GB895199A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1267776B (en) * 1962-12-18 1968-05-09 Electronics Corp America Device for monitoring firing processes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1267776B (en) * 1962-12-18 1968-05-09 Electronics Corp America Device for monitoring firing processes

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