GB2018969A - Ignition/Flame-Detection Device for a Burner Combustion Control System - Google Patents

Ignition/Flame-Detection Device for a Burner Combustion Control System

Info

Publication number
GB2018969A
GB2018969A GB7909196A GB7909196A GB2018969A GB 2018969 A GB2018969 A GB 2018969A GB 7909196 A GB7909196 A GB 7909196A GB 7909196 A GB7909196 A GB 7909196A GB 2018969 A GB2018969 A GB 2018969A
Authority
GB
United Kingdom
Prior art keywords
flame
circuit
ignition
control system
series
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.)
Granted
Application number
GB7909196A
Other versions
GB2018969B (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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB2018969A publication Critical patent/GB2018969A/en
Application granted granted Critical
Publication of GB2018969B publication Critical patent/GB2018969B/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

An ignition/flame-detection device for a burner combustion control system comprises a first series-circuit including an electrode 3, a pulse generator circuit 5, a bidirectional thyristor 17 with two terminals and a burner 1, a second series-circuit including a capacitor 10, a resistor 12, and a secondary winding of a transformer 8 having a primary winding connected to an external AC power source, the second series- circuit being connected across the thyristor, a low-pass filter 13, 14 for smoothing a voltage appearing across the thyristor due to the presence of flame, and a flame detector circuit 15 for detecting the smoothed voltage, thereby generating a flame detection signal. With such a circuit arrangement, an erroneous operation of the device is prevented and a flame detection sensitivity of the device is improved. <IMAGE>
GB7909196A 1978-03-24 1979-03-15 Ignition/flamedection device for a burner combustion control system Expired GB2018969B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3308078A JPS54125537A (en) 1978-03-24 1978-03-24 Lighting-fire detection device

Publications (2)

Publication Number Publication Date
GB2018969A true GB2018969A (en) 1979-10-24
GB2018969B GB2018969B (en) 1982-04-21

Family

ID=12376713

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7909196A Expired GB2018969B (en) 1978-03-24 1979-03-15 Ignition/flamedection device for a burner combustion control system

Country Status (5)

Country Link
JP (1) JPS54125537A (en)
CA (1) CA1106472A (en)
DE (1) DE2911493A1 (en)
DK (1) DK120279A (en)
GB (1) GB2018969B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2480909A1 (en) * 1980-04-16 1981-10-23 Hitachi Ltd FLAME IGNITION AND DETECTION DEVICE
EP0159748A1 (en) * 1984-04-12 1985-10-30 Koninklijke Philips Electronics N.V. Flame protection circuit
EP1707880A1 (en) * 2005-03-17 2006-10-04 Beru AG Process for detecting the presence of a flame in a combustion chamber and ignition device for a burner
RU2464584C2 (en) * 2006-10-13 2012-10-20 Элеттроника Сантерно С.П.А. Solar converter and power plant to convert solar energy into power

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2480909A1 (en) * 1980-04-16 1981-10-23 Hitachi Ltd FLAME IGNITION AND DETECTION DEVICE
EP0159748A1 (en) * 1984-04-12 1985-10-30 Koninklijke Philips Electronics N.V. Flame protection circuit
EP1707880A1 (en) * 2005-03-17 2006-10-04 Beru AG Process for detecting the presence of a flame in a combustion chamber and ignition device for a burner
RU2464584C2 (en) * 2006-10-13 2012-10-20 Элеттроника Сантерно С.П.А. Solar converter and power plant to convert solar energy into power

Also Published As

Publication number Publication date
GB2018969B (en) 1982-04-21
DE2911493A1 (en) 1979-10-04
JPS54125537A (en) 1979-09-29
CA1106472A (en) 1981-08-04
DK120279A (en) 1979-09-25

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee