EP0959300A2 - Procédé et dispositif pour la mise en oeuvre d'un brûleur atmosphérique, en particulier à prémélange total - Google Patents

Procédé et dispositif pour la mise en oeuvre d'un brûleur atmosphérique, en particulier à prémélange total Download PDF

Info

Publication number
EP0959300A2
EP0959300A2 EP99109022A EP99109022A EP0959300A2 EP 0959300 A2 EP0959300 A2 EP 0959300A2 EP 99109022 A EP99109022 A EP 99109022A EP 99109022 A EP99109022 A EP 99109022A EP 0959300 A2 EP0959300 A2 EP 0959300A2
Authority
EP
European Patent Office
Prior art keywords
air
mixing tube
fuel gas
nozzle
gas
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.)
Withdrawn
Application number
EP99109022A
Other languages
German (de)
English (en)
Other versions
EP0959300A3 (fr
Inventor
Ulrich Besser
Manfred Hosch
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0959300A2 publication Critical patent/EP0959300A2/fr
Publication of EP0959300A3 publication Critical patent/EP0959300A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • F23D14/62—Mixing devices; Mixing tubes
    • F23D14/64—Mixing devices; Mixing tubes with injectors
    • 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
    • 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
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/14—Special features of gas burners
    • F23D2900/14641—Special features of gas burners with gas distribution manifolds or bars provided with a plurality of nozzles

Definitions

  • the invention is based on a method and one Device for operating an atmospheric, especially fully premixed gas burner of the genus of the main claims.
  • DE 196 28 710 A1 it is known with a fully premixed atmospheric burner Extend modulation range by adding additional air via a Blower at the end of the mixing tubes, i.e. near the Burner surface is introduced.
  • DE 195 40 772 A1 to increase the primary air intake for an atmospheric gas burner to provide a nozzle arrangement in which over several Gas nozzles the fuel is injected into a mixing tube.
  • the inventive method and the inventive Device allow a simple way Variation of the air-fuel ratio leading to Compensation for changes in the air-fuel ratio over the modulation range and / or to adjust the Gas burner on different fuels without changing the nozzle can be used.
  • Mixing tube injected air jet becomes more ambient air swept away; this air pulse support leads to one advantageous increase in the primary air ratio ⁇ without the Installation space of the gas burner, especially the nozzle and Need to enlarge the mixing tube arrangement. So that becomes a compact gas burner provided, in which one adaptive adaptation of the primary air intake is possible.
  • the air flow is promoted by a blower or fan.
  • An air throttle is connected upstream of the blower, with its Help the amount of airflow can be controlled. So that will the use of a simple fan with constant speed possible.
  • the gas burner is for injecting the air flow into the mixing tube opening provided that the air nozzle eccentrically above or is arranged below the gas nozzle, such that the Air nozzle longitudinal axis the mixing tube longitudinal axis under one preferably cuts an acute angle.
  • the Air nozzle as a coaxial to the central gas nozzle Ring nozzle trained. So that the emerging from the ring nozzle Airflow that exits the central nozzle Fuel gas flow is not hindered, it is proposed that the Exit opening of the ring nozzle opposite the central nozzle is axially set back.
  • Figure 1 shows the schematic overall structure of the gas burner system
  • Figure 2a a sectional view
  • Figure 2b is a side view
  • Figure 2c is a plan view in the direction of arrow A in Figure 2b in the injection area of the gas burner after a first one Embodiment
  • Figure 3 shows a partial sectional view in the injection area of the gas burner a second embodiment.
  • FIG 1 shows an atmospheric gas burner 10 for a Heater with side by side arranged in parallel Mixing tubes 12, which are shared by e.g. made of stainless steel existing burner plate 14 are covered.
  • the Burner plate 14 has a number of Burner outlet openings 16, from which the fuel gas-air mixture exits and via a not shown Ignition device is ignited.
  • the mixing tubes 12 of the atmospheric gas burner 10 is operated via a Gas fitting 18 and via a corresponding line 20th Fuel gas supplied under pressure.
  • each mixing tube 12 has one injector-like widened input opening 22, the cylindrical mixing tubes 12 widening like a diffuser open into a mixing chamber 24.
  • Air conveyor In support of Primary air intake is in the entrance area of the mixing tubes 12 one described in more detail below Air conveyor provided. Via a blower 26 and via a central air line 28 is additionally Combustion air to the inlet openings 22 of the mixing tubes 12 funded. To control the amount of combustion air is in the air line 28 an air throttle 30 is provided. Over a Lambda probe 32 arranged in the exhaust gas chamber of the heater regulation of the air ratio ⁇ enables. The lambda probe 32, the gas valve 18 and the blower 26 and the Air throttle 30 are above corresponding Connection lines with a control unit 34 of the heater in connection.
  • Figure 2 shows a first embodiment for the combined Fuel gas / combustion air nozzle system.
  • Fuel gas nozzles 36 centered on the mixing tube openings 22 and spaced from these, arranged.
  • Above the Fuel gas nozzles 36 are on the air distributor line 28 Air nozzles 38 arranged, the longitudinal axes of the mixing tube longitudinal axes cut at an acute angle.
  • the fuel gas flows to the control unit 34 Fuel gas nozzles 36 and the air flows to the air nozzles 38 so divided that results in the desired air ratio ⁇ , the thus over the entire modulation range of the gas burner 10 can be kept constant.
  • the real one Power control of the gas burner is done on conventional Way by providing a heat requirement Amount of fuel gas via the fuel gas nozzles 36 into the mixing tubes 12 is injected. Through the 22 through the mixing tube openings The fuel gas stream is injected under pressure Combustion air entrained for combustion.
  • Natural gas H is overstoichiometric, so that the a gas type change to a fuel gas with less Combustion air requirements (e.g. natural gas L) Air ratio increase by a corresponding reduction in the Air supply via the air nozzles 38 to an optimal Air ratio is reduced.
  • Combustion air requirements e.g. natural gas L
  • FIG 3 is a second embodiment of a combined fuel gas / combustion air nozzle system shown, the same components with the same Reference numerals are provided.
  • the fuel gas nozzles 36a are concentric with ring nozzles 38a surrounded by the additional combustion air supply he follows.
  • the ring nozzles 38a are opposite the fuel gas nozzles 36a in the flow direction of the fuel or Combustion air set back axially.
  • the gas valve 18 has one control valve 40 and two control valve 40 upstream safety valves 42, 44, the the latter two, among other things, in the event of a shutdown of the gas burner 10 take over the tightness control.
  • the Distribution of the fuel gas flows or combustion air flows can be done in the same way as in first embodiment has been described.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Gas Burners (AREA)
EP99109022A 1998-05-19 1999-05-07 Procédé et dispositif pour la mise en oeuvre d'un brûleur atmosphérique, en particulier à prémélange total Withdrawn EP0959300A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19822336 1998-05-19
DE19822336A DE19822336C2 (de) 1998-05-19 1998-05-19 Vorrichtung zum Betreiben eines atmosphärischen, insbesondere vollvormischenden Gasbrenners

Publications (2)

Publication Number Publication Date
EP0959300A2 true EP0959300A2 (fr) 1999-11-24
EP0959300A3 EP0959300A3 (fr) 2000-02-02

Family

ID=7868218

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99109022A Withdrawn EP0959300A3 (fr) 1998-05-19 1999-05-07 Procédé et dispositif pour la mise en oeuvre d'un brûleur atmosphérique, en particulier à prémélange total

Country Status (2)

Country Link
EP (1) EP0959300A3 (fr)
DE (1) DE19822336C2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2264844A1 (es) * 2004-03-26 2007-01-16 Arturo Bernal Granero Grupo alimentador de combustible/comburente para cocinas de gas y similares.
WO2016124641A1 (fr) * 2015-02-04 2016-08-11 Bosch Termotecnologia S.A. Dispositif de distribution de gaz pour un brûleur atmosphérique à gaz
CN109404905A (zh) * 2017-08-16 2019-03-01 芜湖美的厨卫电器制造有限公司 燃烧器及燃气热水器
CN109404904A (zh) * 2017-08-16 2019-03-01 芜湖美的厨卫电器制造有限公司 燃烧器及燃气热水器
CN109404906A (zh) * 2017-08-16 2019-03-01 芜湖美的厨卫电器制造有限公司 燃烧器及燃气热水器
CN109737403A (zh) * 2019-01-18 2019-05-10 李静师 一种悬浮式三腔铝炉头

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19628710A1 (de) 1995-07-14 1997-01-16 Vaillant Joh Gmbh & Co Vollvormischender atmosphärischer Brenner
DE19540772A1 (de) 1995-11-02 1997-05-07 Buderus Heiztechnik Gmbh Atmosphärischer Gasbrenner

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2151611A1 (de) * 1971-10-16 1973-04-19 Rheinstahl Ag Atmosphaerischer gasbrenner
US3829279A (en) * 1973-08-20 1974-08-13 Modine Mfg Co Dual fuel burner apparatus
AT393888B (de) * 1989-12-22 1991-12-27 Vaillant Gmbh Vormischgasbrenner
DE4341029A1 (de) * 1993-12-02 1995-06-08 Buderus Heiztechnik Gmbh Atmosphärischer Gasbrenner und Verfahren zu seinem Betreiben
DE4419345A1 (de) * 1994-06-03 1995-12-07 Buderus Heiztechnik Gmbh Atmosphärischer Gasbrenner
DE4436021A1 (de) * 1994-06-03 1996-04-11 Buderus Heiztechnik Gmbh Atmosphärischer Gasbrenner

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19628710A1 (de) 1995-07-14 1997-01-16 Vaillant Joh Gmbh & Co Vollvormischender atmosphärischer Brenner
DE19540772A1 (de) 1995-11-02 1997-05-07 Buderus Heiztechnik Gmbh Atmosphärischer Gasbrenner

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2264844A1 (es) * 2004-03-26 2007-01-16 Arturo Bernal Granero Grupo alimentador de combustible/comburente para cocinas de gas y similares.
ES2264844B1 (es) * 2004-03-26 2007-12-16 Arturo Bernal Granero Grupo alimentador de combustible/comburente para cocinas de gas y similares.
WO2016124641A1 (fr) * 2015-02-04 2016-08-11 Bosch Termotecnologia S.A. Dispositif de distribution de gaz pour un brûleur atmosphérique à gaz
CN109404905A (zh) * 2017-08-16 2019-03-01 芜湖美的厨卫电器制造有限公司 燃烧器及燃气热水器
CN109404904A (zh) * 2017-08-16 2019-03-01 芜湖美的厨卫电器制造有限公司 燃烧器及燃气热水器
CN109404906A (zh) * 2017-08-16 2019-03-01 芜湖美的厨卫电器制造有限公司 燃烧器及燃气热水器
CN109737403A (zh) * 2019-01-18 2019-05-10 李静师 一种悬浮式三腔铝炉头

Also Published As

Publication number Publication date
DE19822336C2 (de) 2001-08-16
DE19822336A1 (de) 1999-11-25
EP0959300A3 (fr) 2000-02-02

Similar Documents

Publication Publication Date Title
EP0276696B1 (fr) Brûleur hybride pour fonctionnement en prémélange au gaz et/ou au mazout, notamment pour turbines à gaz
DE69407565T2 (de) Brennstoff-einspritzdüse
DE69214154T2 (de) Emissionsarme brennerdüse für gasturbinenanlage
DE3029095C2 (de) Doppelbrennstoffinjektor für ein Gasturbinentriebwerk
DE69308383T2 (de) Verfahren und Vorrichtung zum Verhindern der Konzentrierungschwingungen von Luft-Kraftstoff in einer Brennkammer
DE69412484T2 (de) Verbrennungskammer eines gasturbinenmotors
EP1064498B1 (fr) Bruleur pour une turbine a gas
DE69819155T2 (de) Pilotbrenner mit mittel für dampfeinspritzung und verbrennungsverfahren mit reduzierter nox-emission
DE3217674C2 (de) Brennkammer für eine Gasturbine
DE2539993C2 (de) Brenner für flüssigen oder gasförmigen Brennstoff
DE69207073T2 (de) Zufuhranlage für die Brennstoff- und Wassereinspritzung in den Verbrennungsteil einer rotierenden Maschine und Verfahren zum Betrieb der Brennstoffzufuhranlage
DE60105093T2 (de) Brennstoffverdünnungsverfahren und Vorrichtung zur NOx-Verminderung
EP0193838B1 (fr) Disposition de brûleur pour installations de combustion, en particulier pour chambres de combustion d'installations de turbines à gaz ainsi que procédé de sa mise en oeuvre
DE69315804T2 (de) Gasbeheiztes Gerät mit atmosphärischem Brenner
EP1840465A2 (fr) Système comportant des brûleurs à injection de carburant étagée
EP0719983A1 (fr) Procédé et dispositif d'alimentation du combustible gazeuse vers un brûleur à prémélange
DE2456837A1 (de) Brennkammer fuer systeme zur speisung von verbrennungsmotoren mit vorverdichtung
EP0718550B1 (fr) Gicleur
EP0924461B1 (fr) Buse de pulvérisation par pression à deux étages
EP0959300A2 (fr) Procédé et dispositif pour la mise en oeuvre d'un brûleur atmosphérique, en particulier à prémélange total
DE2705647A1 (de) Brenner fuer gasfoermigen oder fluessigen brennstoff
EP0866270B1 (fr) Appareil de chauffage à gaz, notamment un chauffe-eau
EP1028287A1 (fr) Brûleur atmosphérique à gaz et distributeur de gaz pour un brûleur à gaz
DE3826279C2 (de) Gasbrenner mit einer Brennerkammer
DE2843002C2 (de) Heizölbrenner

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AKX Designation fees paid
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20000803