EP0217470A1 - Brenner für einen Gaskessel - Google Patents

Brenner für einen Gaskessel Download PDF

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Publication number
EP0217470A1
EP0217470A1 EP86201665A EP86201665A EP0217470A1 EP 0217470 A1 EP0217470 A1 EP 0217470A1 EP 86201665 A EP86201665 A EP 86201665A EP 86201665 A EP86201665 A EP 86201665A EP 0217470 A1 EP0217470 A1 EP 0217470A1
Authority
EP
European Patent Office
Prior art keywords
burner
tube
partition
venturi tube
end wall
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
EP86201665A
Other languages
English (en)
French (fr)
Other versions
EP0217470B1 (de
Inventor
Paul Vloon
Jan Roelof Troost
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.)
Nefit Fasto BV
Original Assignee
Nefit BV
NEDERLANDSE INDUSTRIELE NEFIT B V Mij
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 Nefit BV, NEDERLANDSE INDUSTRIELE NEFIT B V Mij filed Critical Nefit BV
Priority to AT86201665T priority Critical patent/ATE44311T1/de
Publication of EP0217470A1 publication Critical patent/EP0217470A1/de
Application granted granted Critical
Publication of EP0217470B1 publication Critical patent/EP0217470B1/de
Expired 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
    • 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
    • F23D14/10—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 present invention relates to a burner for a gas boiler or the like, comprising at least one elongate burner tube which is provided with a zone extending in the longitudinal direction and having burner openings, and which is closed at both ends by an end wall, said burner tube containing a venturi tube which extends in the axial direction of the tube and whose inlet mouth projects through one end wall and cooperates with a gas injector to draw in air for combustion, while the outlet end of the venturi tube lies some distance from the other end wall of the tube and is provided with a deflector for reversing the direction of flow of the mixture of gas and air.
  • the present invention seeks to improve these known burners in such a manner that combustion is as uniform as possible over the entire surface of the burner without any disturbing noise being produced.
  • this aim is achieved by the provision inside the burner tube of a partition which lies in the axial direction and extends at least from the outlet end of the venturi tube to the burner tube end wall facing it and which is substantially parallel to and at a distance from the wall of the tube and, in the region remote from the burner openings, is provided with an opening, said partition being provided with a deflector which diverts the gasair mixture flowing out of the venturi tube in the direction of the opening in the partition.
  • This construction has the advantage that the gas-air mixture is shielded from the burner openings, at least in the region where the reversal of the direction of flow takes place, that is to say the region where the greatest turbulence occurs.
  • the partition forms two passages through which the gas-air mixture flows to the region of the burner openings.
  • the dimensions of the passages are such that the turbulence of the gas-air mixture is to a great extent damped in them without the resistance of the burner being appreciably increased. Greater resist­ance of the burner would of course have the consequence that less air would be drawn in by the venturi action (induction), so that the air factor would be reduced and in the end longer flames would be formed.
  • the partition may likewise extend over a part of the venturi tube, and may even extend to the end wall of the burner tube where the inlet mouth of the venturi tube projects to the outside.
  • the venturi tube is disposed eccentrically inside the burner tube, in such a manner that the distance between the venturi tube and that region of the burner tube which is provided with the burner openings is shorter than the distance between the venturi tube and the region of the burner tube lying diametrically opposite the first-mentioned region.
  • This construction has the advantage that a larger space is available for the diversion of the gas-air mixture and that less turbulence is produced by this diversion.
  • the partition can extend further from the burner openings, so that the passages formed by the partition can be longer and the mixture will have more opportunity to come to rest before reaching the burner openings.
  • the burner consists of an elongate burner tube 1, which is provided with a region A which extends in the longitudinal direction and has burner openings 2, the tube 1 being closed at each end by respective end walls 3 and 4.
  • the burner tube contains a venturi tube 5 which extends in the direction of the axis of the burner tube and whose inlet mouth 6 extends through the end wall 3 and cooperates with a gas injector 7 to draw in air for combustion.
  • the outlet end 8 of the venturi tube lies some distance from the other end wall 4 of the burner tube 1.
  • a partition 9 extends in the axial direction from the outlet end 8 of the venturi tube to the end wall 4 of the burner tube 1 facing it.
  • the partition 9 extends some distance from and substantially parallel to the wall of the burner tube 1, and its portion remote from the region A provided with the burner openings 2 is provided with an opening which in the examples of embodiment illustrated consists of a single continuous gap 10 (see Figure 3 and 4).
  • a deflector 11 which diverts the gas-air mixture flowing out of the venturi tube 5 back over an angle of about 180° in the direction of the gap 10.
  • passages 12 are formed between the wall of the burner tube and the partition 9, through which the mixture diverted by the deflector 11 can flow to the burner openings 2 situated in the region A. These passages 12 serve to enable the flow to come to rest and to damp turbulence.
  • Figures 3 and 4 also show that the burner tube has in cross-­section a somewhat elongate shape with a curved top surface in which the region A provided with burner openings is situated.
  • the side walls of the burner tube may be curved ( Figure 3) or straight ( Figure 4), while the partition 9 is adapted to the shape adopted.
  • the venturi tube 5 is disposed inside the burner tube 1 in such a manner that the distance from the venturi tube to the top surface of the burner tube is shorter than the distance from it to the bottom region of the burner tube lying diametrically opposite. In the lower part of the burner tube additional space is thus provided to enable the air-gas mixture to be diverted over a larger radius, so that less turbulence results.
  • the partition can extend further along the sides of the burner tube 1 in the downward direction, so that the passages 12 becomes longer and their damping action is increased.
  • FIG. 5 shows another form of construction of the burner according to the invention, in which the partition 9 extends from the outlet end 8 of the venturi tube to the end wall 3 of the burner tube. It will be clear that the partition 9 need not necessarily extend to the end wall 3, but may also extend over a part of the venturi tube. It is however important that in all cases the partition should be present in the region where the greatest turbulence occurs.
  • de passages 12 need not have a uniform width, but may for example be convergent or divergent in the direction of the burner openings.
  • the width of the passages, viewed in the lengthwise direction of the burner tube, also need not be constant.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
EP86201665A 1985-10-03 1986-09-25 Brenner für einen Gaskessel Expired EP0217470B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86201665T ATE44311T1 (de) 1985-10-03 1986-09-25 Brenner fuer einen gaskessel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8502704A NL8502704A (nl) 1985-10-03 1985-10-03 Brander voor een gasketel of dergelijke.
NL8502704 1985-10-03

Publications (2)

Publication Number Publication Date
EP0217470A1 true EP0217470A1 (de) 1987-04-08
EP0217470B1 EP0217470B1 (de) 1989-06-28

Family

ID=19846664

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86201665A Expired EP0217470B1 (de) 1985-10-03 1986-09-25 Brenner für einen Gaskessel

Country Status (4)

Country Link
EP (1) EP0217470B1 (de)
AT (1) ATE44311T1 (de)
DE (1) DE3664158D1 (de)
NL (1) NL8502704A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989001116A1 (en) * 1987-08-03 1989-02-09 Worgas Bruciatori S.R.L. COMBUSTION PROCESS AND GAS BURNER WITH LOW NOx, CO EMISSION
GB2226124A (en) * 1988-12-08 1990-06-20 Frymaster Corp Flashback resistant infrared gas burner apparatus
US5215457A (en) * 1990-01-24 1993-06-01 Worgas Bruciatori S.R.L. Combustion process and gas burner with low nox, co emissions
AT396819B (de) * 1989-05-09 1993-12-27 Vaillant Gmbh Brennerplatte eines atmosphärischen brenners
WO1998055801A1 (en) * 1997-06-05 1998-12-10 Worgas Bruciatori S.R.L. A burner with venturi tube and flow distributing elements
EP0854322A3 (de) * 1997-01-21 1999-06-09 Burner Systems International, Inc. Brenner für vorgemischtes Gas
WO1999035439A1 (en) * 1998-01-02 1999-07-15 Worgas Bruciatori S.R.L. Tubular burner
WO2014100869A1 (pt) * 2012-12-26 2014-07-03 Whirlpool S.A. Sistema de aquecimento baseado em queima de combustível gasoso

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1507791A (en) * 1924-02-09 1924-09-09 Mortimer L Packer Gas burner
US1732071A (en) * 1927-03-19 1929-10-15 Walter M Shaw Low-pressure gas burner
GB982376A (en) * 1961-12-14 1965-02-03 Dravo Corp Improvements in or relating to a gas burner
FR1458167A (fr) * 1965-05-07 1966-03-04 Brûleur ou générateur à gaz pour rayons infra-rouges
US3304986A (en) * 1964-12-24 1967-02-21 Zwaagstra Oebele Gas burner with air and gas mixing means and with main-flame slits and auxiliary slits for stabilizing the main flame
AU534415B2 (en) * 1978-10-23 1984-01-26 Dalgety Australia Operations Limited Gas burner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1507791A (en) * 1924-02-09 1924-09-09 Mortimer L Packer Gas burner
US1732071A (en) * 1927-03-19 1929-10-15 Walter M Shaw Low-pressure gas burner
GB982376A (en) * 1961-12-14 1965-02-03 Dravo Corp Improvements in or relating to a gas burner
US3304986A (en) * 1964-12-24 1967-02-21 Zwaagstra Oebele Gas burner with air and gas mixing means and with main-flame slits and auxiliary slits for stabilizing the main flame
FR1458167A (fr) * 1965-05-07 1966-03-04 Brûleur ou générateur à gaz pour rayons infra-rouges
AU534415B2 (en) * 1978-10-23 1984-01-26 Dalgety Australia Operations Limited Gas burner

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989001116A1 (en) * 1987-08-03 1989-02-09 Worgas Bruciatori S.R.L. COMBUSTION PROCESS AND GAS BURNER WITH LOW NOx, CO EMISSION
AU627146B2 (en) * 1987-08-03 1992-08-20 Worgas Bruciatori S.R.L. Combustion process and gas burner with low nox,co emission
GB2226124A (en) * 1988-12-08 1990-06-20 Frymaster Corp Flashback resistant infrared gas burner apparatus
GB2226124B (en) * 1988-12-08 1992-09-23 Frymaster Corp Flashback resistant infrared gas burner apparatus
AT396819B (de) * 1989-05-09 1993-12-27 Vaillant Gmbh Brennerplatte eines atmosphärischen brenners
US5215457A (en) * 1990-01-24 1993-06-01 Worgas Bruciatori S.R.L. Combustion process and gas burner with low nox, co emissions
EP0854322A3 (de) * 1997-01-21 1999-06-09 Burner Systems International, Inc. Brenner für vorgemischtes Gas
WO1998055801A1 (en) * 1997-06-05 1998-12-10 Worgas Bruciatori S.R.L. A burner with venturi tube and flow distributing elements
US6293786B1 (en) * 1997-06-05 2001-09-25 Worgas Bruciatori S.R.L. Burner with venturi tube and flow distributing elements
WO1999035439A1 (en) * 1998-01-02 1999-07-15 Worgas Bruciatori S.R.L. Tubular burner
WO2014100869A1 (pt) * 2012-12-26 2014-07-03 Whirlpool S.A. Sistema de aquecimento baseado em queima de combustível gasoso

Also Published As

Publication number Publication date
NL8502704A (nl) 1987-05-04
DE3664158D1 (en) 1989-08-03
ATE44311T1 (de) 1989-07-15
EP0217470B1 (de) 1989-06-28

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