EP0732544B2 - Système de surveillance d'étincelle et de flamme pour des brûleurs - Google Patents

Système de surveillance d'étincelle et de flamme pour des brûleurs Download PDF

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Publication number
EP0732544B2
EP0732544B2 EP96103931A EP96103931A EP0732544B2 EP 0732544 B2 EP0732544 B2 EP 0732544B2 EP 96103931 A EP96103931 A EP 96103931A EP 96103931 A EP96103931 A EP 96103931A EP 0732544 B2 EP0732544 B2 EP 0732544B2
Authority
EP
European Patent Office
Prior art keywords
burner
flame
main
valve
switch
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 - Lifetime
Application number
EP96103931A
Other languages
German (de)
English (en)
Other versions
EP0732544A3 (fr
EP0732544A2 (fr
EP0732544B1 (fr
Inventor
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
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Application filed by Honeywell BV filed Critical Honeywell BV
Publication of EP0732544A2 publication Critical patent/EP0732544A2/fr
Publication of EP0732544A3 publication Critical patent/EP0732544A3/fr
Application granted granted Critical
Publication of EP0732544B1 publication Critical patent/EP0732544B1/fr
Publication of EP0732544B2 publication Critical patent/EP0732544B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F23N5/10—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples
    • F23N5/102—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/725—Protection against flame failure by using flame detection devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/20—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays
    • F23N5/203—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2223/00—Signal processing; Details thereof
    • F23N2223/22—Timing network
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/22—Pilot burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/22—Pilot burners
    • F23N2227/24—Pilot burners the pilot burner not burning continuously
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/28—Ignition circuits
    • F23N2227/30—Ignition circuits for pilot burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/36—Spark ignition, e.g. by means of a high voltage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/14—Fuel valves electromagnetically operated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/18—Groups of two or more valves
    • 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

Definitions

  • the invention relates to an ignition and flame monitoring device a heating - Brennwstrom according to the preamble of the claim 1.
  • DE-A 37 24 084 device This type of flame sensor switches on If the pilot flame creates the ignition electrodes feeding transformer while the pilot flame continues to burn and monitored by a thermocouple becomes. So it is constantly the flame of the pilot burner monitored and at their extinction the plant stopped ies means that the pilot flame constantly burning.
  • Another device with the Features of the generic term of the Claim 1 is known from the Brochure 7451, automatic burner control LFL1 ..., Landis & Gyr. February 1979. Pages 1-8.
  • the main burner MB of a burner system is via a first main burner valve MV1 and a second Valve MV2 supplied with gas. Between the two Valves MV1 and MV2 branches a line to the pilot burner valve PV off, which is the pilot burner PB fed. This is assigned an ignition electrode ZE, which of an ignition generator IG with ignition pulses is supplied.
  • One in the flame area F of the main burner MB immersed flame sensor electrode FE is with connected to the input of a flame sensor amplifier FV, on the one hand on the line L1 an output signal for stopping a timer ZG supplies and on the other hand via the line L2, the normally closed contact switch RK controls.
  • the serving as security timer Timer ZG carries its output signal over the Line L3 to the safety switch SI, whose contact si in the power supply line between an AC voltage source V, e.g. the AC mains voltage, and a heat demand switch WB is located.
  • the three Gas valves MV1, MV2 and PV are solenoid valves and each equipped with a field winding E1, E2 and E3.
  • the safety switch SI opens its contact si as soon as from timer ZG over the line L3 a blocking signal is supplied. The contact si can only be closed again by hand.
  • the contact WB for example the contact of a room thermostat, closed.
  • the AC line voltage passes from the voltage source V via the safety contact si and the heat demand switch WB on the one hand to the two excitation windings E1 and E2 of the gas line to the main burner MB lying valves MV1 and MV2, on the other hand via the normally closed contact switch RK to the excitation winding E3 of the pilot burner valve PV and finally via the line L4 to the supply input of the timer ZG.
  • From the L5 line between Normally closed contact switch RK and exciter winding E3 of the Zündbrennerventils further branches a line L6 for Ignition generator IG from the ignition electrode ZE with Supplied ignition pulses.
  • the timer ZG set in motion. He has, for example a delay time of 5 seconds, which, as is known, the size of the burner system, so in particular from the gas flow to the main burner depends. Is properly a flame F of the Detected sensor electrode FE, so arises at the output the flame amplifier FV a switching signal, which on the one hand via the line L1, the timer ZG shut down, so that this no blocking signal on the line L3 outputs, and on the other hand via the line L2, the normally closed contact switch RK from his resting contact rk on the counter contact gk umteil. This will be the Zündbrennerventil PV and the ignition generator IG de-energized. Then neither gas flows to the pilot burner PB, still sparks are still generated.
  • the main burner valve MV1 can, as is known, to act a servo-controlled control valve, which the gas flow rate to the main burner MB in Depending on the amount of heat demand.
  • the second valve MV2 is a conventional one Closing valve. Both valves MV1 and MV2 and possibly also the Zündbrennerventil PV can in a known manner be housed in a common housing.
  • this arrangement is particularly advantageous because the main burner MB with a lean gas / air mixture can be operated, which is low Pollutants produced, but is difficult to ignite. He is therefore not directly affected by electrical sparks, but through the flame of the pilot burner PB ignited, in turn, with a rich gas / air mixture operated and thus easily ignited can. Since the pilot burner during normal operation is switched off, it generates during normal operation no pollutants.

Landscapes

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

Claims (6)

  1. Dispositif de surveillance de l'allumage et de la flamme pour une installation de brûleur et de chauffage comprenant:
    a) un brûleur principal (MB) et une vanne de brûleur principal (MV1) associée;
    b) un brûleur d'allumage (PB) et une vanne de brûleur d'allumage (PV) associée;
    c) un dispositif d'allumage (IG, ZE) associé au brûleur d'allumage;
    caractérisé en ce que
    d) une sonde de flamme (FE) pénétrant dans la zone de flamme (F) du brûleur principal (MB) met à l'arrêt le dispositif d'allumage (IG) en cas de présence de la flamme (F),
    e) la sonde de flamme (FE) surveille la flamme (F) du brûleur principal (MB) et fournit, en cas de présence de la flamme du brûleur principal, un signal fermant la vanne de brûleur d'allumage (PV),
    f) une horloge (ZG) recevant également le signal de sortie de la sonde de flamme (FE, FV), arrête l'installation après l'expiration d'un intervalle de temps prédéterminé à partir de l'ouverture de la vanne de brûleur d'allumage (PV), si une flamme de brûleur principal (F) n'a pas été détectée jusqu'à l'expiration de cet intervalle de temps,
    g) la vanne de brûleur principal (MV1) et l'horloge (ZG) sont raccordées à une source de courant d'alimentation (V) par l'intermédiaire d'un interrupteur de besoin en chaleur (WB); et
    h) la vanne de brûleur d'allumage (PV) et le dispositif d'allumage (IG) sont raccordés à l'interrupteur de besoin en chaleur (WB), par l'intermédiaire d'un interrupteur à contact de repos (RK) commandé par le signal de sortie de la sonde de flamme (FE, FV) et s'ouvrant en cas de présence de la flamme de brûleur principal (F).
  2. Dispositif selon la revendication 1, caractérisé en ce que l'horloge (ZG) agit sur un interrupteur de sécurité (SI, si) pouvant être remis en position initiale uniquement à la main et placé dans la ligne d'alimentation en courant pour le dispositif de surveillance de l'allumage et de la flamme.
  3. Dispositif selon la revendication 2, caractérisé en ce que le contact (si) de l'interrupteur de sécurité (SI) est monté en série avec l'interrupteur de besoin en chaleur (WB), entre la source de courant d'alimentation (V) et la vanne de brûleur principal (MV1).
  4. Dispositif selon la revendication 3, caractérisé en ce que l'entrée d'alimentation en courant de l'horloge (ZG), le contact fixe de l'interrupteur à contact de repos (RK) et la vanne de brûleur principal (MV1) sont raccordés à l'interrupteur de besoin en chaleur (WB).
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce qu'en amont de la vanne de brûleur principal (MV1) est placée une seconde vanne (MV2), et la conduite allant à la vanne de brûleur d'allumage (PV) est dérivée d'un piquage entre ces deux vannes.
  6. Dispositif selon la revendication 5, caractérisé en ce que l'enroulement d'excitation (E2) de la seconde vanne est également raccordé au point de connexion entre l'interrupteur à contact de repos (RK) et le contact (si) de l'interrupteur de sécurité.
EP96103931A 1995-03-17 1996-03-13 Système de surveillance d'étincelle et de flamme pour des brûleurs Expired - Lifetime EP0732544B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19509797A DE19509797C1 (de) 1995-03-17 1995-03-17 Zünd- und Flammenüberwachungseinrichtung für Brenneranlagen
DE19509797 1995-03-17

Publications (4)

Publication Number Publication Date
EP0732544A2 EP0732544A2 (fr) 1996-09-18
EP0732544A3 EP0732544A3 (fr) 1996-11-27
EP0732544B1 EP0732544B1 (fr) 1998-12-09
EP0732544B2 true EP0732544B2 (fr) 2005-12-14

Family

ID=7757011

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96103931A Expired - Lifetime EP0732544B2 (fr) 1995-03-17 1996-03-13 Système de surveillance d'étincelle et de flamme pour des brûleurs

Country Status (2)

Country Link
EP (1) EP0732544B2 (fr)
DE (2) DE19509797C1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19812834B4 (de) * 1998-03-24 2004-12-16 Alstom Verfahren zum Zünden der Brenner von Brennkammern in Gasturbinenanlagen
DE202004021583U1 (de) * 2004-03-12 2009-05-20 Mertik Maxitrol Gmbh & Co. Kg Gasregelarmatur
EP2020572B1 (fr) * 2007-07-31 2012-12-26 Sit la Precisa S.p.a. Dispositif automatique pour l'allumage et le contrôle d'un appareil à gaz et procédé de commande correspondant
IT201800005549A1 (it) * 2018-05-21 2019-11-21 Apparecchio di riscaldamento con bruciatore a gas combustibile

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4145179A (en) † 1976-11-29 1979-03-20 Hitachi, Ltd. Combustion control system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1013855B (de) * 1954-01-22 1957-08-14 Junkers & Co Gasbeheizter Fluessigkeitserhitzer
US4137035A (en) * 1977-02-16 1979-01-30 Electronics Corporation Of America Burner control apparatus
US4303383A (en) * 1979-11-09 1981-12-01 Honeywell Inc. Condition control system with safety feedback means
JPS5892727A (ja) * 1981-04-09 1983-06-02 Hattori Kogyo Kk ガス自動煮炊器
JPS62182530A (ja) * 1986-02-06 1987-08-10 Rinnai Corp ガス安全装置
DE3724084A1 (de) * 1986-07-23 1988-01-28 Vaillant Joh Gmbh & Co Steuerungseinrichtung zur inbetriebnahme des gasbrenners eines gasbeheizten wasserheizers

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4145179A (en) † 1976-11-29 1979-03-20 Hitachi, Ltd. Combustion control system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LGZ Landis & Gyr Zug AG, CH-6301: Feuerungsautomaten für atmosphärische Gasbrenner imintermittierenden Betrieb LGA41..., LGA52..., CB1-7418D, Juni 1985, Seiten 1-4 †

Also Published As

Publication number Publication date
DE19509797C1 (de) 1996-06-27
EP0732544A3 (fr) 1996-11-27
EP0732544A2 (fr) 1996-09-18
EP0732544B1 (fr) 1998-12-09
DE59600927D1 (de) 1999-01-21

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