EP0959300A2 - Verfahren und Vorrichtung zum Betreiben eines atmosphärischen, insbesondere vollvormischenden Gasbrenners - Google Patents
Verfahren und Vorrichtung zum Betreiben eines atmosphärischen, insbesondere vollvormischenden Gasbrenners Download PDFInfo
- 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- Withdrawn
Links
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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
- F23D14/62—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, 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
- 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)
Abstract
Description
Claims (8)
- Verfahren zum Betreiben eines atmosphärischen, insbesondere vollvormischenden Gasbrenners für ein Heizgerät mit mindestens einem Mischrohr für ein Brenngas-Luft-Gemisch sowie mit mindestens einer der Mischrohröffnung zugeordneten Brenngasdüse, durch die ein Brenngasstrom in das Mischrohr injiziert wird, wobei Verbrennungsluft durch den Impuls des Brenngasstroms in das Mischrohr mitgerissen wird, dadurch gekennzeichnet, daß zusätzlich zum Brenngasstrom ein Luftstrom über die Mischrohröffnung (22) in das Mischrohr (12) eingedüst wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Größe des Luftstroms in Abhängigkeit von der geforderten Brennerleistung geregelt wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Luftstrom durch ein Gebläse bzw. Lüfter (26) gefördert wird.
- Atmosphärischer, insbesondere vollvormischender Gasbrenner für ein Heizgerät mit mindestens einem Mischrohr für ein Brenngas-Luft-Gemisch sowie mit mindestens einer der Mischrohröffnung zugeordneten Brenngasdüse und einer Brenneroberfläche mit Austrittsöffnungen für das Brenngas-Luft-Gemisch, ferner mit Mitteln zur Unterstützung der Verbrennungsluftzufuhr, dadurch gekennzeichnet, daß im Bereich der Mischrohröffnung (22) eine Luftdüse (38, 38a) angeordnet ist, mit deren Hilfe zusätzlich Luft in das Mischrohr (12) injiziert wird.
- Gasbrenner nach Anspruch 4, dadurch gekennzeichnet, daß die Luftdüse (38) exzentrisch zur Mischrohröffnung (22) ober- oder unterhalb der Brenngasdüse (36) angeordnet ist, dergestalt, daß die Luftdüsen-Längsachse die Mischrohr-Längsachse unter einen Winkel schneidet.
- Gasbrenner nach Anspruch 4, dadurch gekennzeichnet, daß die Luftdüse (38a) als eine koaxial zur Brenngasdüse (36a) angeordnete Ringdüse ausgebildet ist, wobei die Brenngasdüse (36a) zentrisch zur Mischrohröffnung (22) ausgerichtet ist.
- Gasbrenner nach Anspruch 6, dadurch gekennzeichnet, daß die Austrittsöffnung der Luftdüse (38a) gegenüber der Brenngasdüse (36a) axial zurückversetzt ist.
- Gasbrenner nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, daß die Luftströme zu den Luftdüsen (38, 38a) durch ein Gebläse bzw. Lüfter (26) gefördert wird, wobei dem Gebläse (26) eine Luftdrossel (30) vorgeschaltet ist, mit deren Hilfe die Luftstrommenge gesteuert werden kann.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19822336A DE19822336C2 (de) | 1998-05-19 | 1998-05-19 | Vorrichtung zum Betreiben eines atmosphärischen, insbesondere vollvormischenden Gasbrenners |
DE19822336 | 1998-05-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0959300A2 true EP0959300A2 (de) | 1999-11-24 |
EP0959300A3 EP0959300A3 (de) | 2000-02-02 |
Family
ID=7868218
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99109022A Withdrawn EP0959300A3 (de) | 1998-05-19 | 1999-05-07 | Verfahren und Vorrichtung zum Betreiben eines atmosphärischen, insbesondere vollvormischenden Gasbrenners |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0959300A3 (de) |
DE (1) | DE19822336C2 (de) |
Cited By (6)
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 (de) * | 2015-02-04 | 2016-08-11 | Bosch Termotecnologia S.A. | Gasverteilervorrichtung für einen atmosphärischen gasbrenner |
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 |
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 |
CN109737403A (zh) * | 2019-01-18 | 2019-05-10 | 李静师 | 一种悬浮式三腔铝炉头 |
Citations (2)
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)
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 |
DE4436021A1 (de) * | 1994-06-03 | 1996-04-11 | Buderus Heiztechnik Gmbh | Atmosphärischer Gasbrenner |
DE4419345A1 (de) * | 1994-06-03 | 1995-12-07 | Buderus Heiztechnik Gmbh | Atmosphärischer Gasbrenner |
-
1998
- 1998-05-19 DE DE19822336A patent/DE19822336C2/de not_active Expired - Fee Related
-
1999
- 1999-05-07 EP EP99109022A patent/EP0959300A3/de not_active Withdrawn
Patent Citations (2)
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 (6)
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 (de) * | 2015-02-04 | 2016-08-11 | Bosch Termotecnologia S.A. | Gasverteilervorrichtung für einen atmosphärischen gasbrenner |
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 |
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 |
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 |
EP0959300A3 (de) | 2000-02-02 |
DE19822336A1 (de) | 1999-11-25 |
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