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EP1211460A3 - Flame monitoring circuit - Google Patents

Flame monitoring circuit Download PDF

Info

Publication number
EP1211460A3
EP1211460A3 EP01127983A EP01127983A EP1211460A3 EP 1211460 A3 EP1211460 A3 EP 1211460A3 EP 01127983 A EP01127983 A EP 01127983A EP 01127983 A EP01127983 A EP 01127983A EP 1211460 A3 EP1211460 A3 EP 1211460A3
Authority
EP
European Patent Office
Prior art keywords
monitoring circuit
burner
flame monitoring
compensating
ionization electrode
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
EP01127983A
Other languages
German (de)
French (fr)
Other versions
EP1211460B1 (en
EP1211460A2 (en
Inventor
Jochen Grabe
Carsten Wölfl
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
Original Assignee
Vaillant GmbH
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 Vaillant GmbH filed Critical Vaillant GmbH
Priority to AT01127983T priority Critical patent/ATE338250T1/en
Publication of EP1211460A2 publication Critical patent/EP1211460A2/en
Publication of EP1211460A3 publication Critical patent/EP1211460A3/en
Application granted granted Critical
Publication of EP1211460B1 publication Critical patent/EP1211460B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Control Of Combustion (AREA)
  • Fire-Detection Mechanisms (AREA)

Abstract

The burner monitoring circuit has a changeover voltage (Uion) connected ionization electrode (Iioni) mounted adjacent to the burner flame. It has an evaluation monitor connected to a compensating voltage source (Ub) with a ionization electrode current flow controlled transistor (T152). The negative pole of the compensating source (Ub) is connected to the burner mass. The positive pole is connected to a deep pass filter (C154) to the ionisation electrode.
EP01127983A 2000-12-01 2001-11-24 Flame monitoring circuit Expired - Lifetime EP1211460B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT01127983T ATE338250T1 (en) 2000-12-01 2001-11-24 FLAME SWITCH CIRCUIT

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10061252 2000-12-01
DE10061252 2000-12-01
AT8622001 2001-06-05
AT8622001 2001-06-05

Publications (3)

Publication Number Publication Date
EP1211460A2 EP1211460A2 (en) 2002-06-05
EP1211460A3 true EP1211460A3 (en) 2004-04-14
EP1211460B1 EP1211460B1 (en) 2006-08-30

Family

ID=25608447

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01127983A Expired - Lifetime EP1211460B1 (en) 2000-12-01 2001-11-24 Flame monitoring circuit

Country Status (5)

Country Link
EP (1) EP1211460B1 (en)
AT (1) ATE338250T1 (en)
DE (2) DE50110866D1 (en)
DK (1) DK1211460T3 (en)
ES (1) ES2270940T3 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3627458A (en) * 1968-08-27 1971-12-14 United Gas Industries Ltd Flame detection system
US4672324A (en) * 1984-04-12 1987-06-09 U.S. Philips Corporation Flame protection circuit
EP0388065A2 (en) * 1989-03-17 1990-09-19 Black Automatic Controls Ltd Flame detection apparatus and method
US5472336A (en) * 1993-05-28 1995-12-05 Honeywell Inc. Flame rectification sensor employing pulsed excitation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3219006B2 (en) 1997-01-29 2001-10-15 トヨタ自動車株式会社 Power output device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3627458A (en) * 1968-08-27 1971-12-14 United Gas Industries Ltd Flame detection system
US4672324A (en) * 1984-04-12 1987-06-09 U.S. Philips Corporation Flame protection circuit
EP0388065A2 (en) * 1989-03-17 1990-09-19 Black Automatic Controls Ltd Flame detection apparatus and method
US5472336A (en) * 1993-05-28 1995-12-05 Honeywell Inc. Flame rectification sensor employing pulsed excitation

Also Published As

Publication number Publication date
DK1211460T3 (en) 2007-01-08
ATE338250T1 (en) 2006-09-15
EP1211460B1 (en) 2006-08-30
EP1211460A2 (en) 2002-06-05
DE10159032A1 (en) 2002-09-12
DE50110866D1 (en) 2006-10-12
ES2270940T3 (en) 2007-04-16

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