EP0284011A2 - Brûleur atmosphérique à gaz - Google Patents

Brûleur atmosphérique à gaz Download PDF

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Publication number
EP0284011A2
EP0284011A2 EP88104526A EP88104526A EP0284011A2 EP 0284011 A2 EP0284011 A2 EP 0284011A2 EP 88104526 A EP88104526 A EP 88104526A EP 88104526 A EP88104526 A EP 88104526A EP 0284011 A2 EP0284011 A2 EP 0284011A2
Authority
EP
European Patent Office
Prior art keywords
intake
atmospheric gas
gas burner
exhaust gas
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Withdrawn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
EP88104526A
Other languages
German (de)
English (en)
Other versions
EP0284011A3 (fr
Inventor
Lothar Bechtum
Dieter Becker
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.)
Bosch Thermotechnik GmbH
Original Assignee
Buderus Heiztechnik 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 Buderus Heiztechnik GmbH filed Critical Buderus Heiztechnik GmbH
Publication of EP0284011A2 publication Critical patent/EP0284011A2/fr
Publication of EP0284011A3 publication Critical patent/EP0284011A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • 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
    • F23D14/10—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 elongated tubular burner head
    • F23D14/105—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 elongated tubular burner head with injector axis parallel to the burner head axis

Definitions

  • the invention relates to an atmospheric gas burner according to the preamble of claim 1.
  • a mixture of fuel and primary air is fed to the burner tube.
  • the combustion takes place after exiting the flow openings on the surface of the burner tube.
  • a very high temperature arises in the flame, with increasing nitrogen oxide formation as the temperature rises.
  • the oxygen partial pressure, the residence time of the reactants and the level of the flame temperature have an influence on the formation of nitrogen oxides.
  • the present invention uses the known effect of lowering the partial pressure of oxygen in the primary air by supplying exhaust gases.
  • a primary air mixture of fresh air and exhaust gas is fed to the burner tube. No separate fan is required for suction. Rather, this takes place through the injection effect of the gas jet. In this way, not only fresh air is drawn in, but also the required exhaust gas.
  • the negative pressure resulting from the primary and / or secondary air flow serves to suck in the exhaust gas.
  • the invention can be implemented in such a way that the supply duct for the primary air has a fixed or adjustable supply air opening and an exhaust gas inlet connection connected to the exhaust gas area and opens into the suction area of the gas jet.
  • the primary air is supplied through a duct in which the fresh air and the exhaust gases are mixed. Neither a separate suction device nor a separate exhaust system is required.
  • the fixed or adjustable supply air opening also allows the amount of fresh air to be adjusted to meet requirements.
  • the exhaust gas intake can be connected to the flow control, to the secondary heating surface and / or to the combustion chamber of the heating boiler.
  • a flap controlled by a motor or bimetal is to be used in front of or in the exhaust gas intake.
  • the suction takes place through the resulting negative pressure.
  • the additional control serves to set the flow more precisely.
  • a distributor plate connected upstream of the exhaust gas intake in the flow control also acts in the same sense.
  • the adjustable change in the supply air opening can also be regulated via a motor or bimetal-controlled flap in order to precisely adapt the fresh air supply to the existing requirements.
  • the fuel leaves the distributor pipe 1 with the fuel supply channel 1 a through a nozzle 2 in order to flow into the burner pipe 3.
  • the boiler is protected against heat loss by external insulation.
  • the supply duct 5 for the primary air opens into the inflow area of the fuel.
  • the primary air is drawn in as a mixture of fresh air and exhaust gases by means of an injection effect.
  • the fresh air flows through a supply air opening 5a with a controllable or controllable opening cross section.
  • the control is a motor or bimetallic flap 8a.
  • the exhaust gases are through exhaust gas intake 5b of the flow control 6 or the secondary heating surface of the boiler 7 (Fig. 1) or through an exhaust gas intake 5c from the combustion chamber (Fig. 2).
  • a motor-controlled or bimetallic flap 8b, c is to be used for regulation.
  • a distribution plate 9 in the flow safety device 6 has an additional influence on the flow.
  • the suction takes place through the injection effect of the fuel gas or through the resulting negative pressure.
EP88104526A 1987-03-24 1988-03-22 Brûleur atmosphérique à gaz Withdrawn EP0284011A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3709597 1987-03-24
DE19873709597 DE3709597A1 (de) 1987-03-24 1987-03-24 Atmosphaerischer gasbrenner

Publications (2)

Publication Number Publication Date
EP0284011A2 true EP0284011A2 (fr) 1988-09-28
EP0284011A3 EP0284011A3 (fr) 1988-11-30

Family

ID=6323836

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88104526A Withdrawn EP0284011A3 (fr) 1987-03-24 1988-03-22 Brûleur atmosphérique à gaz

Country Status (2)

Country Link
EP (1) EP0284011A3 (fr)
DE (1) DE3709597A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992008927A1 (fr) * 1990-11-19 1992-05-29 Exxon Chemical Patents Inc. REMISE EN CIRCULATION DES GAZ DE FUMEE DESTINEE A REDUIRE LE NOx DANS LES BRULEURS A MELANGE PREALABLE
EP0664420A1 (fr) * 1994-01-24 1995-07-26 Buderus Heiztechnik GmbH Brûleur atmosphérique à gaz
US6247917B1 (en) * 1998-08-21 2001-06-19 Texaco Inc. Flue gas recirculation system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH677965A5 (fr) * 1988-09-02 1991-07-15 Strebelwerk Ag

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1609150A (en) * 1926-02-08 1926-11-30 Oil Devices Corp Control device for heating combustible mixtures
GB1418867A (en) * 1971-10-25 1975-12-24 Imp Metal Ind Kynoch Ltd Gas-fired appliance
JPS6080011A (ja) * 1983-10-11 1985-05-07 Matsushita Electric Ind Co Ltd 液体燃料燃焼装置
DE8520263U1 (de) * 1985-07-11 1985-12-05 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Durchlauf- oder Speicherwasserheizer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1609150A (en) * 1926-02-08 1926-11-30 Oil Devices Corp Control device for heating combustible mixtures
GB1418867A (en) * 1971-10-25 1975-12-24 Imp Metal Ind Kynoch Ltd Gas-fired appliance
JPS6080011A (ja) * 1983-10-11 1985-05-07 Matsushita Electric Ind Co Ltd 液体燃料燃焼装置
DE8520263U1 (de) * 1985-07-11 1985-12-05 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Durchlauf- oder Speicherwasserheizer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 9, Nr. 223 (M-411)[1946], 10. September 1985; & JP-A-60 080 011 (MATSUSHITA DENKI SANGYO K.K.) 07-05-1985 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992008927A1 (fr) * 1990-11-19 1992-05-29 Exxon Chemical Patents Inc. REMISE EN CIRCULATION DES GAZ DE FUMEE DESTINEE A REDUIRE LE NOx DANS LES BRULEURS A MELANGE PREALABLE
AU654986B2 (en) * 1990-11-19 1994-12-01 Exxon Chemical Patents Inc. Flue gas recirculation for NOx reduction in premix burners
EP0664420A1 (fr) * 1994-01-24 1995-07-26 Buderus Heiztechnik GmbH Brûleur atmosphérique à gaz
US6247917B1 (en) * 1998-08-21 2001-06-19 Texaco Inc. Flue gas recirculation system

Also Published As

Publication number Publication date
DE3709597A1 (de) 1988-10-06
EP0284011A3 (fr) 1988-11-30

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