EP1036984B3 - Brûleur à prémélange pour combustibles gazeux - Google Patents

Brûleur à prémélange pour combustibles gazeux Download PDF

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Publication number
EP1036984B3
EP1036984B3 EP00104614A EP00104614A EP1036984B3 EP 1036984 B3 EP1036984 B3 EP 1036984B3 EP 00104614 A EP00104614 A EP 00104614A EP 00104614 A EP00104614 A EP 00104614A EP 1036984 B3 EP1036984 B3 EP 1036984B3
Authority
EP
European Patent Office
Prior art keywords
burner
electrode
premix
ionization
mixture
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
EP00104614A
Other languages
German (de)
English (en)
Other versions
EP1036984A1 (fr
EP1036984B1 (fr
Inventor
Hartmut Henrich
Ulrich Niemeyer
Martin Petersmann
Sascha Rothenberger
Ansgar Schlump
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.)
Elster GmbH
Original Assignee
Elster 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 Elster GmbH filed Critical Elster GmbH
Publication of EP1036984A1 publication Critical patent/EP1036984A1/fr
Application granted granted Critical
Publication of EP1036984B1 publication Critical patent/EP1036984B1/fr
Publication of EP1036984B3 publication Critical patent/EP1036984B3/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
    • 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
    • F23D14/60—Devices for simultaneous control of gas and combustion air
    • 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
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2208/00—Control devices associated with burners
    • F23D2208/10—Sensing devices
    • 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

Definitions

  • the invention relates to a premix burner for gaseous fuels, with a mixture distributor having a plurality of mixture passage openings and with an ionization electrode which is connected to a control device.
  • the burner operates according to the so-called SCOT method, in which the ionization signal supplied by the ionization electrode is processed electronically in order to provide information about the flame temperature and thus about the air ratio.
  • the process aims to keep the air ratio constant, thus enabling low-emission combustion of gases of varying composition.
  • the quality of the control depends on the straightness of the course of the ionization signal over the burner output.
  • a device for monitoring the operation of the burner plate of a surface burner by means of an electrode which measures the ionization in the flame region.
  • the burner flames are longer in the region of the electrode in a delimited area than in the remaining area of the burner plate.
  • the mixture passage openings are dimensioned smaller in the region of the electrode than in the remaining region of the burner plate. This results in a reduction of the surface load.
  • the burner plate is supplied in the region of the electrode, a mixture with a reduced proportion of air. This undesirably changes the gas / air ratio.
  • the invention has for its object to improve the burner control to the effect that it is an ionization signal is supplied, the linearity is increased above the burner power.
  • the premix burner mentioned above is inventively characterized in that the control device is designed to derive a signal representing the air number from the ionization of the electrode.
  • the surface loading of the premix burner according to the invention is increased in the region of the ionization electrode by the ionization electrode is associated with a pilot burner or by the mixture passage area of the mixture distributor is increased in the region of the ionization.
  • the invention is based on the finding that the quality of the ionization signal depends on the surface load of the burner. The lower the surface load, the weaker the ionization signal and the earlier its fall begins with decreasing burner output. On the other hand, the general technical trend is towards low surface loads in order to achieve the lowest possible pollutant emissions.
  • the invention provides a local increase in the surface load and in many cases only allows the use of the SCOT method by corresponding improvement of the quality of the ionization signal. In all circumstances will extends the usable power range of the burner downwards.
  • the increase in the surface load is locally limited and therefore does not lead to any, in the worst case only to a negligible influence on the emission values.
  • premix burner with a pilot burner, which is assigned to the ionization and operates with higher surface load than the actual burner.
  • the premix burner 1 after Fig. 1 is connected to an air line 2 and to a gas line 3.
  • a pressure regulator 5 is arranged in the air line.
  • the pressure regulator 5 operates in dependence on an additional electronics 6, which in turn is connected to a customer-specific boiler electronics 7. The latter also controls the fan 4.
  • An ionization electrode 8 indicated as a line supplies its signal to the additional electronics 6, in which this signal is processed in such a way that it represents the air ratio of the premix burner 1.
  • the ionization electrode 8 is arranged in the region of a pilot burner 9 which communicates with both the air line 2 and with the gas line 3 and therefore a Mixture burns, as it is also the burner head 1 ', is supplied.
  • the pilot burner 9 is set to a higher surface load than the burner head 1 '.
  • the additional electronics 6 thus produces a high quality ionization signal.
  • this signal is plotted against the boiler output, as compared to the signal resulting when the ionization electrode is located in the region of the low surface load burner head 1 '.
  • the ionization signal drops very sharply with decreasing burner output, which suffers from the quality of the control, with the result that the air ratio of the premix burner 1 can no longer be kept constant with gas changes.
  • Fig. 3 shows a mixture distributor 10 of a premix burner in the form of a burner plate, which is provided with a plurality of mixture passage openings 11. Over the largest area of the burner plate, the density of the mixture passage openings 11 is selected so that the burner operates with low surface loading and therefore achieves favorable emission values.
  • the ionization electrode 8 is arranged on the left edge of the burner plate and extends into the region thereof. As shown, here the density of the mixture passage openings 11 is increased. The mixture passage area is therefore increased, so that the burner operates in this area with increased surface loading. The effect corresponds to that of the pilot burner 9 after Fig. 1 , Since the increase in the surface load is locally limited, the emission values are hardly affected.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)

Claims (2)

  1. Brûleur à prémélange gazeux, avec un distributeur de mélange (10) présentant une pluralité d'orifices de passage du mélange (11), et une électrode d'ionisation (8) raccordée à un dispositif de réglage,
    caractérisé en ce,
    que le dispositif de réglage est réalisé pour obtenir du flux d'ionisation de l'électrode un signal représentant le taux d'aération,
    que le débit calorifique spécifique du brûleur à prémélange (1) se trouve élevé au niveau de l'électrode d'ionisation (8) en ce qu'un brûleur d'allumage (9) est attribué à l'électrode d'ionisation (8) ou en ce que la surface de passage du mélange (11) du distributeur de mélange (10) est agrandie au niveau de l'électrode d'ionisation (8).
  2. Brûleur à prémélange suivant la revendication 1, caractérisé par le fait que la densité des orifices de passage du mélange (11) du distributeur de mélange (10) se trouve élevée au niveau de l'électrode d'ionisation (8).
EP00104614A 1999-03-18 2000-03-03 Brûleur à prémélange pour combustibles gazeux Expired - Lifetime EP1036984B3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19912076A DE19912076A1 (de) 1999-03-18 1999-03-18 Vormischbrenner für gasförmige Brennstoffe
DE19912076 1999-03-18

Publications (3)

Publication Number Publication Date
EP1036984A1 EP1036984A1 (fr) 2000-09-20
EP1036984B1 EP1036984B1 (fr) 2004-02-18
EP1036984B3 true EP1036984B3 (fr) 2009-09-23

Family

ID=7901418

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00104614A Expired - Lifetime EP1036984B3 (fr) 1999-03-18 2000-03-03 Brûleur à prémélange pour combustibles gazeux

Country Status (3)

Country Link
EP (1) EP1036984B3 (fr)
AT (1) ATE259960T1 (fr)
DE (2) DE19912076A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017128802A1 (de) 2017-12-05 2019-06-06 Vaillant Gmbh Vollvormischender Gasbrenner
EP3910237A2 (fr) 2020-05-12 2021-11-17 Vaillant GmbH Agencement de brûleur et tôle de distribution

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007018673U1 (de) 2007-10-09 2009-01-29 Viessmann Werke Gmbh & Co Kg Gasgebläsebrenner
EP2177830A1 (fr) 2008-10-16 2010-04-21 Siemens Building Technologies HVAC Products GmbH Brûleur à gaz pour une régulation combinée gaz-air
WO2010094673A1 (fr) 2009-02-20 2010-08-26 Bekaert Combust. Technol. B.V. Brûleur à gaz à pré-mélange avec surveillance et régulation améliorées de la flamme
WO2011069839A1 (fr) 2009-12-11 2011-06-16 Bekaert Combustion Technology B.V. Brûleur pourvu d'une plateforme de brûleur à faible porosité
IT1399921B1 (it) 2010-05-05 2013-05-09 Worgas Bruciatori Srl Bruciatore premiscelato
EP2649372B1 (fr) 2010-12-09 2015-02-11 Bekaert Combustion Technology B.V. Brûleur doté d'un couvercle de brûleur fixé localement
CN104197330A (zh) * 2014-09-01 2014-12-10 南宁市鑫烽节能科技有限公司 一种涡轮式全预混燃烧器
DE202016105039U1 (de) * 2016-09-12 2017-09-14 Viessmann Werke Gmbh & Co Kg Gasbrenner
DE102017213767A1 (de) * 2017-08-08 2019-02-14 Robert Bosch Gmbh Brennerabdeckung, Verfahren zur Herstellung einer Brennerabdeckung sowie ein Flächenbrenner
EP3752770A1 (fr) 2018-02-14 2020-12-23 Bekaert Combustion Technology B.V. Brûleur cylindrique à gaz de pré-mélange
EP3628924B1 (fr) 2018-09-25 2021-06-02 Polidoro S.p.A. Dispositif de distributeur à coupe variable pour un brûleur prémélangeur et brûleur comprenant un tel distributeur
EP3628923B1 (fr) 2018-09-25 2021-06-16 Polidoro S.p.A. Dispositif distributeur pour un brûleur à prémélange et brûleur comprenant un tel distributeur
DE102019003451A1 (de) 2019-05-16 2020-11-19 Truma Gerätetechnik GmbH & Co. KG Verfahren zum Überwachen eines Brenners und/oder eines Brennverhaltens eines Brenners sowie Brenneranordnung
CN110388752B (zh) * 2019-07-09 2021-04-27 广东万家乐燃气具有限公司 强抽型燃气热水器用分火器和燃烧器
IT202000002209A1 (it) 2020-02-05 2021-08-05 Polidoro S P A Bruciatore a premiscelamento

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU541670B2 (en) 1980-05-29 1985-01-17 Matsushita Electric Industrial Co., Ltd. Burner
JPS6042512A (ja) * 1984-07-05 1985-03-06 Matsushita Electric Ind Co Ltd 燃焼装置
FR2569825B1 (fr) * 1984-09-04 1988-12-09 Totalgaz Cie Fse Bruleur a melange prealable integre et a flamme pilote integree
JPH0733911B2 (ja) * 1986-03-20 1995-04-12 松下電器産業株式会社 燃焼装置
AT391197B (de) * 1988-04-28 1990-08-27 Vaillant Gmbh Vorrichtung zur ueberwachung des betriebes der von gemischaustrittsoeffnungen durchsetzten brennerplatte eines flaechenbrenners
JP3531656B2 (ja) * 1995-01-27 2004-05-31 株式会社ガスター バーナユニット
DE19502900C2 (de) * 1995-01-31 1997-12-18 Stiebel Eltron Gmbh & Co Kg Ionisationselektrode
DE29708377U1 (de) * 1997-05-09 1997-07-17 Viessmann Werke Kg Gasflächenbrenner
DE19828111A1 (de) * 1997-08-01 1999-02-18 Ruhrgas Ag Atmosphärischer Gasbrenner und Verfahren zu seinem Betreiben
DE19752335A1 (de) * 1997-11-26 1999-05-27 Ruhrgas Ag Verfahren und Vorrichtung zum Verbrennen von Brennstoff
DE19824523C2 (de) * 1998-06-02 2000-06-08 Honeywell Bv Regelungsverfahren für Gasbrenner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017128802A1 (de) 2017-12-05 2019-06-06 Vaillant Gmbh Vollvormischender Gasbrenner
EP3910237A2 (fr) 2020-05-12 2021-11-17 Vaillant GmbH Agencement de brûleur et tôle de distribution

Also Published As

Publication number Publication date
EP1036984A1 (fr) 2000-09-20
ATE259960T1 (de) 2004-03-15
DE19912076A1 (de) 2000-09-21
DE50005289D1 (de) 2004-03-25
EP1036984B1 (fr) 2004-02-18

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