EP0867661A3 - Flame monitoring device with flame rod - Google Patents

Flame monitoring device with flame rod Download PDF

Info

Publication number
EP0867661A3
EP0867661A3 EP98105254A EP98105254A EP0867661A3 EP 0867661 A3 EP0867661 A3 EP 0867661A3 EP 98105254 A EP98105254 A EP 98105254A EP 98105254 A EP98105254 A EP 98105254A EP 0867661 A3 EP0867661 A3 EP 0867661A3
Authority
EP
European Patent Office
Prior art keywords
flame
rod
monitoring device
network
phase
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
EP98105254A
Other languages
German (de)
French (fr)
Other versions
EP0867661A2 (en
EP0867661B1 (en
Inventor
Jur De Pauw
Derk Vegter
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.)
Garrett Motion SARL
Original Assignee
Honeywell BV
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 Honeywell BV filed Critical Honeywell BV
Publication of EP0867661A2 publication Critical patent/EP0867661A2/en
Publication of EP0867661A3 publication Critical patent/EP0867661A3/en
Application granted granted Critical
Publication of EP0867661B1 publication Critical patent/EP0867661B1/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

Abstract

Zur Speisung des Flammenstabs (FR) eines Flammenwächters aus einem Drehstromnetz mit nicht niederohmig geerdetem Sternpunkt (MP) ist eine an zwei Phasenleitungen des Netzes (PH1, PH2) angeschlossene Frequenzvervielfacherschaltung (D1 bis D4) vorgesehen, und der das Flammensignal auswertende Flammenverstärker (FA) nutzt eine der Phasenleitungen (PH) als Bezugspotential.

Figure 00000001
A frequency multiplier circuit (D1 to D4) connected to two phase lines of the network (PH1, PH2) and the flame amplifier (FA) evaluating the flame signal are provided to supply the flame rod (FR) of a flame monitor from a three-phase network with a star point (MP) that is not grounded with low impedance. uses one of the phase lines (PH) as a reference potential.
Figure 00000001
EP19980105254 1997-03-27 1998-03-24 Flame monitoring device with flame rod Expired - Lifetime EP0867661B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19710938 1997-03-27
DE1997112938 DE19712938C1 (en) 1997-03-27 1997-03-27 Burner flame monitor supply voltage circuit for power plant

Publications (3)

Publication Number Publication Date
EP0867661A2 EP0867661A2 (en) 1998-09-30
EP0867661A3 true EP0867661A3 (en) 2000-05-24
EP0867661B1 EP0867661B1 (en) 2002-09-11

Family

ID=7824825

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980105254 Expired - Lifetime EP0867661B1 (en) 1997-03-27 1998-03-24 Flame monitoring device with flame rod

Country Status (3)

Country Link
EP (1) EP0867661B1 (en)
DE (2) DE19712938C1 (en)
ES (1) ES2179394T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10125574A1 (en) * 2001-05-25 2002-11-28 Siemens Building Tech Ag Flame monitoring device with which an asymmetrical voltage is applied across burner and ionization electrode to detect presence of flame
DE10202910C1 (en) * 2002-01-25 2003-10-16 Honeywell Bv Circuit arrangement for determining the flame current of a burner
DE10312669B3 (en) * 2003-03-21 2004-10-21 Honeywell B.V. Circuit arrangement for determining the flame current of a burner
DE102022203963B3 (en) 2022-04-25 2023-07-20 Prüfrex engineering e motion gmbh & co. kg Circuit arrangement for flame monitoring

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2536092A1 (en) * 1975-08-13 1977-02-24 Bosch Gmbh Robert Electric flame detector for oil or gas burner - has ioniser as flame sensor and switching amplifier to cut fuel supply when flame goes out
GB2153126A (en) * 1983-12-14 1985-08-14 Landis & Gyr Ag Self-monitoring flame monitor
EP0498619A2 (en) * 1991-02-04 1992-08-12 Black Automatic Controls Ltd Flame detection circuit and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2536092A1 (en) * 1975-08-13 1977-02-24 Bosch Gmbh Robert Electric flame detector for oil or gas burner - has ioniser as flame sensor and switching amplifier to cut fuel supply when flame goes out
GB2153126A (en) * 1983-12-14 1985-08-14 Landis & Gyr Ag Self-monitoring flame monitor
EP0498619A2 (en) * 1991-02-04 1992-08-12 Black Automatic Controls Ltd Flame detection circuit and method

Also Published As

Publication number Publication date
EP0867661A2 (en) 1998-09-30
DE19712938C1 (en) 1998-05-14
DE59805467D1 (en) 2002-10-17
ES2179394T3 (en) 2003-01-16
EP0867661B1 (en) 2002-09-11

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