EP0062797A1 - Procédé pour le service d'un brûleur à gaz dans un courant d'air et brûleur pour la réalisation du procédé - Google Patents

Procédé pour le service d'un brûleur à gaz dans un courant d'air et brûleur pour la réalisation du procédé Download PDF

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Publication number
EP0062797A1
EP0062797A1 EP82102431A EP82102431A EP0062797A1 EP 0062797 A1 EP0062797 A1 EP 0062797A1 EP 82102431 A EP82102431 A EP 82102431A EP 82102431 A EP82102431 A EP 82102431A EP 0062797 A1 EP0062797 A1 EP 0062797A1
Authority
EP
European Patent Office
Prior art keywords
burner
air
flow
gas
plate
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
EP82102431A
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German (de)
English (en)
Other versions
EP0062797B1 (fr
Inventor
Hans Dipl.-Ing. Sommers
Hans Berg
Theo Dipl.-Phys. Jannemann
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.)
EOn Ruhrgas AG
Original Assignee
Ruhrgas AG
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 Ruhrgas AG filed Critical Ruhrgas AG
Priority to AT82102431T priority Critical patent/ATE15536T1/de
Publication of EP0062797A1 publication Critical patent/EP0062797A1/fr
Application granted granted Critical
Publication of EP0062797B1 publication Critical patent/EP0062797B1/fr
Expired legal-status Critical Current

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    • 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
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/08—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with axial outlets at the burner head

Definitions

  • the invention relates to a method for operating a gas burner exposed to an air flow, which consists of at least one gas nozzle, at least one conical mixing tube and a burner plate, which is arranged in a shaft-shaped housing and the exhaust gas of which flows with the air flow flowing through the housing, if necessary after dispensing Heat to a heat exchanger, is mixed and burner to carry out the process.
  • the air flow, the influences of which the burner is exposed to, can, for. B. caused by a blower or the draft of a fireplace.
  • gas burners are used to directly heat a fan air flow by mixing the burner exhaust gases with the air flow.
  • the previously used premix burners are only supplied with a part of the air required for combustion by the injector effect of the gas through the mixing tube. The rest of the air needed for complete combustion diffuses into the resulting flames. If these burners are placed directly in a forced air stream, they may be confined to a particular burner heat load only with a specific throughput of blown air and in most> cases be driven. A change in the temperature of the blower air flow by changing the burner heat load or changing the blower air quantity is only possible in a narrow range because this changes the flame stability, so that there is a risk that the burner will work unhygienically, ie with incomplete combustion, or that the flames will go out.
  • the burner must be arranged outside the fan air flow, with the new disadvantage that the heat radiated from the burner housing does not contribute to the heating of the air flow.
  • the heat content contained in the fuel can therefore not be fully used to heat the air flow.
  • space must be available for the burner outside the blower duct, which often causes problems, particularly in the case of household appliances.
  • the object of the invention is to provide a generic method for operating a gas burner and a burner for carrying out the method by which a low-pollutant, in particular low NOx exhaust gas is generated and the independent of the thermal load of the burner and on the flow rate or optimal combustion and utilization of the heat content of the fuel is achieved by the throughput of the air in the housing.
  • the burner should allow a high heat load, which can be changed over a wide range and should be as compact and structurally simple as possible.
  • the invention first teaches to draw a larger than the amount of combustion air required according to the respective heat load solely with the aid of the pulse of the fuel gas flowing into the mixing tube from the gas flow transverse to the flow direction of the air from the air stream and the formation of a differential pressure between the mixing tube inlet and exhaust gas outlet in the air stream to prevent with the help of flow guide plates.
  • An essential feature of the method according to the invention is to switch off the effect of the air flow on the burner operation and at the same time to create the possibility of taking the total amount of combustion air required from the air flow before the combustion.
  • This is achieved in that, in the burner according to the invention for carrying out the method, on the one hand the gas nozzle and the mixing tube inlet and the flames on the burner plate are protected from direct access to air, and on the other hand in that the flow cross sections for the air are of the same size and thus the flow velocity the air in the area of the flow guide plates are kept almost the same.
  • the latter measure ensures that within the flow guide plates, ie. H.
  • the same pressure prevails both in the vicinity of the mixing tube inlet and on the flame side of the burner plate or at the exhaust gas inlet into the air flow - regardless of the air flow.
  • the burner can therefore work completely independently of the amount or flow rate of the air flowing around it. Changes in the throughput of air and congestion behind the burner have no effect on the amount of air drawn in by the burner and consequently on flame stability and burnout. As a result, the burner according to the invention can be operated in a large thermal load range without the air ratio and thus the flame stability changing.
  • the burner has a burner plate which is connected to the mixing tube and is made of a good heat-conducting material and has a multiplicity of mixture passage openings, at least 4 openings per cm 2 , which are distributed over the entire burner plate cross section.
  • cooling fins made of a good heat-conducting material, which protrude into the air flow and dissipate heat from the burner plate to the air, or a cooling coil through which water flows, so that the burner plates temperature remains almost constant.
  • the NO x content of the burner exhaust gas is extremely low because the flame temperature is homogeneous and lower than in burners in which only part of the required combustion air is mixed with the gas is premixed.
  • the exhaust gas is used to directly heat the air flow, there is a risk of possible damage to the goods or persons coming into contact with the exhaust gas or the exhaust gas / air mixture
  • FIGS. 1 and 2 can, for. B. used in a household clothes dryer.
  • the burner is arranged concentrically in the cylindrical, horizontally lying shaft-shaped housing 1, through which the dry air to be heated flows, which is conveyed by a blower (not shown).
  • the burner consists essentially of the gas nozzle 2 and the conical mixing tube 3 with the inlet opening 8, to which the burner plate 4 is connected.
  • the well heat-conducting material z. B. copper existing burner plate 4 has one Nominal heat load of 5 kW about 500 mixture passage openings 14 which are evenly distributed over the entire burner plate cross section of about 50 cm 2 .
  • the heat load on the burner plate is so great that the plate must be cooled in order to prevent it from overheating and thus preventing the air ratio from changing or the flames from flashing back.
  • cooling fins 7 which also consist of a good heat-conducting material and which protrude into the air flow and transfer the burner plate heat to the air.
  • the burner plate temperature is kept almost constant even when the burner load changes.
  • the burner plate including the cooling fins can be cast from one part.
  • the gas nozzle 2 and the lower part of the mixing tube 3 are surrounded by the flow guide plate 5, which consists of a hemispherical lower part and a subsequent cylinder jacket.
  • both cylindrical flow guide plates 5 and 6 is equal to the diameter of the burner plate 4, so that the free flow cross-section for the blower air - which is formed by the flow guide plates 5, 6 and the wall of the housing 1 - and thus their flow speed in the area of the flow guide plates is about the same size. In this way the influence of the fan air on the burner is switched off. It is therefore possible to reduce the heat load on the burner to less than 50% of its nominal heat load, regardless of the fan air flow.
  • the mixing tube 3 Immediately in front of the burner plate, the mixing tube 3 has a short cylindrical section for better mixing of the fuel gas / combustion air mixture. -
  • the air ratio of the burner is about 1.05 to 1.35 at a nominal heat load of 5 kW when using natural gas, depending on the calorific value.
  • the cross section of the shaft-shaped housing 1, burner parts and the flow guide plates can deviate from the shape described in the previous example.
  • the housing can have, for example, a rectangular or conically widening cross section.
  • the outer shape of the burner plate and the guide plates can also be made rectangular in accordance with the shape of the housing; however, a cylindrical design is also possible. If the diameter of the housing changes in the area of the burner, the diameter of the flow guide plates must change accordingly and z. B. with a conical extension form a larger opening angle than the air shaft, since otherwise the condition of the same flow cross-sections for the blower air would not be met.
  • the shaft-shaped housing does not have to be horizontal, as in the example above, but can be arranged as desired, depending on the space available.
  • the blower effect is based on the buoyancy or draft of the exhaust gases in the chimney.
  • the burner plate 4 is also cooled due to the large surface heat load, specifically with the help of the cooling coil 13 attached to the burner plate edge (4), through which the already heated service or heating water flows as a cooling medium.
  • the flow guide plate 6 connects the burner to the heat exchanger 10 and is at the same time the lateral boundary of the combustion chamber 12.
  • the flow guide plates 5 and 6 cause the formation of a differential pressure between the mixing pipe inlet 8 ′ and the exhaust gas outlet 9 into the air flow — here behind the heat exchanger 10 - prevents.
  • the gas water heater is arranged vertically, a lift occurs in the combustion chamber, which only affects the surface of the burner, but not the air supply to the injectors, and thus influences the air ratio with changing loads. This buoyancy can be prevented either by horizontal arrangement of the gas water heater or by measures such as. B. are mentioned in the unpublished patent application P 30 18 752.1, can be compensated.
  • the housing 1 forms, together with the flow guide plates 5 and 6 according to the invention, a constant free flow cross section for the air. A larger than the amount of air required for complete combustion is sucked in according to the invention with the help of the gas jets emerging from the gas nozzles 2, transverse to the flow direction of the air, completely independently of the changing chimney draft.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
EP82102431A 1981-04-03 1982-03-24 Procédé pour le service d'un brûleur à gaz dans un courant d'air et brûleur pour la réalisation du procédé Expired EP0062797B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82102431T ATE15536T1 (de) 1981-04-03 1982-03-24 Verfahren zum betrieb eines einem luftstrom ausgesetzten gasbrenners sowie brenner zur durchfuehrung des verfahrens.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3113416 1981-04-03
DE3113416A DE3113416A1 (de) 1981-04-03 1981-04-03 Verfahren zum betrieb eines einem luftstrom ausgesetzten gasbrenners sowie brenner zur durchfuehrung des verfahrens

Publications (2)

Publication Number Publication Date
EP0062797A1 true EP0062797A1 (fr) 1982-10-20
EP0062797B1 EP0062797B1 (fr) 1985-09-11

Family

ID=6129204

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82102431A Expired EP0062797B1 (fr) 1981-04-03 1982-03-24 Procédé pour le service d'un brûleur à gaz dans un courant d'air et brûleur pour la réalisation du procédé

Country Status (5)

Country Link
US (1) US4457704A (fr)
EP (1) EP0062797B1 (fr)
AT (1) ATE15536T1 (fr)
CA (1) CA1192829A (fr)
DE (1) DE3113416A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4752213A (en) * 1985-11-06 1988-06-21 Gaz De France Forced-air gas burner
FR2658268A1 (fr) * 1990-02-09 1991-08-16 Polidoro Aldo Bruleur a gaz a faible teneur en produits nitreux.
WO1992012381A1 (fr) * 1991-01-07 1992-07-23 Ruhrgas Aktiengesellschaft Bruleur a gaz et procede pour son utilisation
US5423675A (en) * 1993-11-08 1995-06-13 Kratsch; Kenneth Burner mixing chamber
US5658139A (en) * 1990-11-16 1997-08-19 American Gas Association Low NOX burner
CN107013912A (zh) * 2017-05-31 2017-08-04 深圳智慧能源技术有限公司 自冷却引射式燃烧装置
WO2019001486A1 (fr) * 2017-06-28 2019-01-03 青岛海尔洗衣机有限公司 Cylindre de combustion, dispositif de chauffage et équipement de séchage de vêtements

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61110875A (ja) * 1984-11-01 1986-05-29 三菱油化エンジニアリング株式会社 輻射加熱装置
FR2597578B1 (fr) * 1985-10-25 1991-02-08 Rinnai Kk Appareil a bruleur, notamment chauffe-eau, muni d'une soufflante
US4680008A (en) * 1986-12-08 1987-07-14 Northern Telecom Limited High temperature furnace for integrated circuit manufacture
DE8703983U1 (de) * 1987-03-17 1988-07-21 Viessmann Werke GmbH & Co, 3559 Allendorf Gas-Flächenbrenner für Heizungskessel
US5156002A (en) * 1990-03-05 1992-10-20 Rolf J. Mowill Low emissions gas turbine combustor
DE4208611C2 (de) * 1992-03-18 1995-05-18 Ruhrgas Ag Atmosphärischer Gasbrenner mit einem schachtförmigen, einen Luftstrom führenden Gehäuse
US5613357A (en) * 1993-07-07 1997-03-25 Mowill; R. Jan Star-shaped single stage low emission combustor system
US5572862A (en) * 1993-07-07 1996-11-12 Mowill Rolf Jan Convectively cooled, single stage, fully premixed fuel/air combustor for gas turbine engine modules
US5628182A (en) * 1993-07-07 1997-05-13 Mowill; R. Jan Star combustor with dilution ports in can portions
US5638674A (en) * 1993-07-07 1997-06-17 Mowill; R. Jan Convectively cooled, single stage, fully premixed controllable fuel/air combustor with tangential admission
US5377483A (en) * 1993-07-07 1995-01-03 Mowill; R. Jan Process for single stage premixed constant fuel/air ratio combustion
US6220034B1 (en) 1993-07-07 2001-04-24 R. Jan Mowill Convectively cooled, single stage, fully premixed controllable fuel/air combustor
US5681159A (en) * 1994-03-11 1997-10-28 Gas Research Institute Process and apparatus for low NOx staged-air combustion
US6071115A (en) * 1994-03-11 2000-06-06 Gas Research Institute Apparatus for low NOx, rapid mix combustion
NO179883C (no) * 1994-10-14 1997-01-08 Ulstein Turbine As Drivstoff-/luftblandingsanordning
US5924276A (en) * 1996-07-17 1999-07-20 Mowill; R. Jan Premixer with dilution air bypass valve assembly
US5957682A (en) * 1996-09-04 1999-09-28 Gordon-Piatt Energy Group, Inc. Low NOx burner assembly
US6925809B2 (en) 1999-02-26 2005-08-09 R. Jan Mowill Gas turbine engine fuel/air premixers with variable geometry exit and method for controlling exit velocities
US6729874B2 (en) * 2000-07-27 2004-05-04 John Zink Company, Llc Venturi cluster, and burners and methods employing such cluster
US6652268B1 (en) 2003-01-31 2003-11-25 Astec, Inc. Burner assembly
US6923643B2 (en) * 2003-06-12 2005-08-02 Honeywell International Inc. Premix burner for warm air furnace
US20080280243A1 (en) * 2003-10-02 2008-11-13 Malcolm Swanson Burner assembly
GB0424967D0 (en) * 2004-11-12 2004-12-15 Hamworthy Combustion Eng Ltd Incinerator for boil-off gas
US8104192B2 (en) * 2005-03-31 2012-01-31 Lg Electronics Inc. Laundry dryer
US20070048685A1 (en) * 2005-09-01 2007-03-01 General Electric Company Fuel burner
AU2007203890B2 (en) * 2006-01-03 2010-07-15 Lg Electronics Inc. Dryer
RU2338121C1 (ru) * 2007-02-21 2008-11-10 Государственное образовательное учреждение высшего профессионального образования "Московский государственный горный университет" (МГГУ) Устройство для сжигания взрывоопасных газовых смесей
EP2864702B1 (fr) * 2012-06-22 2017-02-22 Ferndale Investments Pty Ltd Chalumeau de chauffe
CN107062225B (zh) * 2017-05-31 2023-09-19 深圳智慧能源技术有限公司 自冷却引射式燃烧器
CN109579004B (zh) * 2018-11-09 2020-06-23 鞍钢股份有限公司 一种低温低NOx天然气燃烧系统及燃烧方法
CN109579003B (zh) * 2018-11-09 2020-06-23 鞍钢股份有限公司 一种组合型内燃式低温低NOx天然气燃烧器及燃烧方法
CN110822424B (zh) * 2019-11-22 2021-10-19 青岛天正洁能环保科技有限公司 一种静态混风器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2582577A (en) * 1947-09-25 1952-01-15 Zink Gas-air burner provided with antiflashback member
DE2042364A1 (de) * 1969-08-26 1971-06-09 Mitsubishi Electric Corp Heizgerat zur Erzeugung von Heiß wasser oder Heißluft
DE2348953A1 (de) * 1972-09-28 1974-04-11 Tri Men Manufacturing Inc Gasbrenner fuer fahrzeugheizungen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3273621A (en) * 1966-09-20 Burner assembly
US3689040A (en) * 1970-11-30 1972-09-05 Commercial Propane Corp Portable space heater and gas burner for the same
US3917442A (en) * 1971-11-10 1975-11-04 Dimiter S Zagoroff Heat gun
US4226087A (en) * 1979-03-01 1980-10-07 United Technologies Corporation Flameholder for gas turbine engine
DE3010014C2 (de) * 1980-03-15 1987-01-15 Gaswärme-Institut e.V. Vorrichtung zur Einstellung des Verbrennungsluftstromes bei Brenngasverbrauchern
DE3018752A1 (de) * 1980-05-16 1981-11-26 Ruhrgas Ag, 4300 Essen Vorrichtung zum steuern der verbrennungsluftmenge bei gasverbrauchseinrichtungen mit injektorbrennern

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2582577A (en) * 1947-09-25 1952-01-15 Zink Gas-air burner provided with antiflashback member
DE2042364A1 (de) * 1969-08-26 1971-06-09 Mitsubishi Electric Corp Heizgerat zur Erzeugung von Heiß wasser oder Heißluft
DE2348953A1 (de) * 1972-09-28 1974-04-11 Tri Men Manufacturing Inc Gasbrenner fuer fahrzeugheizungen

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4752213A (en) * 1985-11-06 1988-06-21 Gaz De France Forced-air gas burner
FR2658268A1 (fr) * 1990-02-09 1991-08-16 Polidoro Aldo Bruleur a gaz a faible teneur en produits nitreux.
US5658139A (en) * 1990-11-16 1997-08-19 American Gas Association Low NOX burner
WO1992012381A1 (fr) * 1991-01-07 1992-07-23 Ruhrgas Aktiengesellschaft Bruleur a gaz et procede pour son utilisation
US5423675A (en) * 1993-11-08 1995-06-13 Kratsch; Kenneth Burner mixing chamber
CN107013912A (zh) * 2017-05-31 2017-08-04 深圳智慧能源技术有限公司 自冷却引射式燃烧装置
CN107013912B (zh) * 2017-05-31 2023-09-19 深圳智慧能源技术有限公司 自冷却引射式燃烧装置
WO2019001486A1 (fr) * 2017-06-28 2019-01-03 青岛海尔洗衣机有限公司 Cylindre de combustion, dispositif de chauffage et équipement de séchage de vêtements

Also Published As

Publication number Publication date
DE3113416C2 (fr) 1989-11-23
DE3113416A1 (de) 1982-10-21
ATE15536T1 (de) 1985-09-15
EP0062797B1 (fr) 1985-09-11
US4457704A (en) 1984-07-03
CA1192829A (fr) 1985-09-03

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