EP2942564A1 - Gas burner - Google Patents

Gas burner Download PDF

Info

Publication number
EP2942564A1
EP2942564A1 EP15165261.7A EP15165261A EP2942564A1 EP 2942564 A1 EP2942564 A1 EP 2942564A1 EP 15165261 A EP15165261 A EP 15165261A EP 2942564 A1 EP2942564 A1 EP 2942564A1
Authority
EP
European Patent Office
Prior art keywords
gas burner
flame strip
metal fibre
frame member
flange
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
EP15165261.7A
Other languages
German (de)
French (fr)
Other versions
EP2942564B1 (en
Inventor
Marek Leopold SZADURSKI
David Michael Bruce Killer
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.)
Beckett Thermal Solutions Ltd
Original Assignee
Worgas Burners Ltd
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 Worgas Burners Ltd filed Critical Worgas Burners Ltd
Publication of EP2942564A1 publication Critical patent/EP2942564A1/en
Application granted granted Critical
Publication of EP2942564B1 publication Critical patent/EP2942564B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F23D14/02—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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/101—Flame diffusing means characterised by surface shape
    • F23D2203/1017—Flame diffusing means characterised by surface shape curved
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/102—Flame diffusing means using perforated plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2210/00—Noise abatement
    • F23D2210/101—Noise abatement using noise dampening material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2212/00—Burner material specifications
    • F23D2212/20—Burner material specifications metallic
    • F23D2212/201—Fibres
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2213/00—Burner manufacture specifications

Definitions

  • This invention concerns a gas burner.
  • a gas burner including a body defining a combustion chamber, the body comprising a profiled integral member, with a plurality of ports being provided extending through a face of the body to provide a flame strip, with a combustion surface on the external side of the flame strip, the gas burner also including a frame member which is mounted to the body by a mechanical joint.
  • the frame member and body may be mounted together by mechanical pressing.
  • a flange may be provided around the body, and a part of the frame member may be folded around the flange.
  • the body may comprise an at least generally planar part defining the flame strip, and side walls extending from the planar part, with the flange provided at opposite ends of the side walls from the planar part.
  • the flame strip may be domed.
  • Metal fibre may be provided on the exterior side of the flame strip.
  • the metal fibre may be provided on only a part of the flame strip.
  • the metal fibre may be provided on just a central part of the flame strip.
  • the metal fibre may be mounted to the body by spot welding.
  • a method of forming a gas burner comprising forming a plurality of openings in a piece of planar material to define a flame strip with ports therethrough, mechanically shaping the planar material to define a body, and mounting the body to a frame member by forming a mechanical joint therebetween.
  • the body and frame member may be mounted together by pressing.
  • a flange may be provided on the body, and the frame member may be profiled to engage on either side of the flange to provide a mechanical joint therebetween.
  • Metal fibre may be mounted on an external side of the flame strip.
  • the metal fibre may be mounted on the flame strip by spot welding.
  • the metal fibre may be mounted on the flame strip prior to shaping of the planar material to form the body.
  • Figs. 1 to 3 show a gas burner 10 of a type useable for instance in a central heating boiler, a cooking appliance or otherwise.
  • the gas burner comprises a body 12 formed of an integral profiled sheet 14 of an appropriate metal.
  • the body 12 has an upper slightly raised area which defines a flame strip 16 with a combustion surface on the external side of the flame strip 16.
  • a layer of metal fibre 17 is mounted on the flame strip 14.
  • a plurality of ports 18 are provided through the flame strip 16.
  • the ports 18 may be in the form of circular holes or slots, or a combination of the two, or other shaped openings.
  • a flange 20 is provided around the body 12 at the edges thereof away from the flame strip 16.
  • a frame 22 is provided on the burner 10.
  • the frame 22 comprises a peripheral strip 24 defining a central opening 26, with a pair of support members 28 extending across the opening 26.
  • the body 12 is mounted to the frame 22 by the edges of the peripheral strip, being pressed around the flange 20.
  • the ports 18 may be formed in the sheet 14.
  • the sheet 14 can then be profiled to form the body 12.
  • the frame 22 can be mounted on to the body by pressing edges of the frame on to the flange as shown in Fig. 1 .
  • the metal fibre 17 extends across just a central portion of the flame strip 16, as is indicated by the lighter shaded ports 18 in Fig. 3 , with a row of ports 18 at each end and side not covered by the metal fibre 17.
  • Fig. 4 shows a second gas burner 28 with a layer of metal fibre 30 extending wholly across the flame strip 16 and covering all of the ports 18.
  • the metal fibre 17, 30 may be mounted to the body 12 by spot welding, and could be mounted on to the flame strip 16 during manufacture and prior to shaping of the body 12.
  • the metal fibre 17, 30 is required to only cover a part of the flame strip 16, and may for instance only be required to cover a central part of the flame strip 16.
  • the metal fibre is used to reduce or substantially eliminate noise or resonance during use of the burner. Leaving some of the ports uncovered by the metal fibre, provides for a retention of flame for instance with lean or poor gases, and thereby avoids nuisance shutdown of the burner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)

Abstract

A gas burner 10 with a body 12 which defines a combustion chamber. The body 12 is formed of an integral profiled sheet and has a plurality of ports 18 in an upper slightly raised area to define a flame strip 16. The burner 10 also includes a frame 22 which is mounted to the body 12 by a mechanical joint.

Description

  • This invention concerns a gas burner.
  • A wide range of gas burner designs have been proposed over the years. Such gas burners can be used in a range of applications including cooking and heating.
  • According to a first aspect of the invention there is provided a gas burner, the gas burner including a body defining a combustion chamber, the body comprising a profiled integral member, with a plurality of ports being provided extending through a face of the body to provide a flame strip, with a combustion surface on the external side of the flame strip, the gas burner also including a frame member which is mounted to the body by a mechanical joint.
  • The frame member and body may be mounted together by mechanical pressing.
  • A flange may be provided around the body, and a part of the frame member may be folded around the flange.
  • The body may comprise an at least generally planar part defining the flame strip, and side walls extending from the planar part, with the flange provided at opposite ends of the side walls from the planar part. The flame strip may be domed.
  • Metal fibre may be provided on the exterior side of the flame strip. The metal fibre may be provided on only a part of the flame strip. The metal fibre may be provided on just a central part of the flame strip. The metal fibre may be mounted to the body by spot welding.
  • According to a second aspect of the invention there is provided a method of forming a gas burner, the method comprising forming a plurality of openings in a piece of planar material to define a flame strip with ports therethrough, mechanically shaping the planar material to define a body, and mounting the body to a frame member by forming a mechanical joint therebetween.
  • The body and frame member may be mounted together by pressing.
  • A flange may be provided on the body, and the frame member may be profiled to engage on either side of the flange to provide a mechanical joint therebetween.
  • Metal fibre may be mounted on an external side of the flame strip. The metal fibre may be mounted on the flame strip by spot welding. The metal fibre may be mounted on the flame strip prior to shaping of the planar material to form the body.
  • Embodiments of the present invention will now be described by way of example only and with reference to the accompanying drawings.
    • Fig. 1 is a sectional view through part of a first gas burner according to the invention;
    • Fig. 2 is a diagrammatic cutaway perspective view of the burner of Fig. 1;
    • Fig. 3 is a plan view of the burner of Fig. 1; and
    • Fig. 4 is a similar view to Fig. 3 but of a second burner according to the invention.
  • Figs. 1 to 3 show a gas burner 10 of a type useable for instance in a central heating boiler, a cooking appliance or otherwise. The gas burner comprises a body 12 formed of an integral profiled sheet 14 of an appropriate metal. The body 12 has an upper slightly raised area which defines a flame strip 16 with a combustion surface on the external side of the flame strip 16.
  • A layer of metal fibre 17 is mounted on the flame strip 14.
  • A plurality of ports 18 are provided through the flame strip 16. The ports 18 may be in the form of circular holes or slots, or a combination of the two, or other shaped openings. A flange 20 is provided around the body 12 at the edges thereof away from the flame strip 16.
  • A frame 22 is provided on the burner 10. The frame 22 comprises a peripheral strip 24 defining a central opening 26, with a pair of support members 28 extending across the opening 26. The body 12 is mounted to the frame 22 by the edges of the peripheral strip, being pressed around the flange 20.
  • This therefore provides a gas burner made of just two components the body 12 and frame 22, and a layer of metal fibre 17, with the body 12 mounted to the frame 20 just by mechanical means, alleviating the need for any welding or similar processes. Providing an integral flame strip with the body, means that only two components are required, and there is no requirement for mounting a separate flame strip to the body.
  • During manufacture the ports 18 may be formed in the sheet 14. The sheet 14 can then be profiled to form the body 12. The frame 22 can be mounted on to the body by pressing edges of the frame on to the flange as shown in Fig. 1.
  • In many situations it may be required to provide metal fibre on at least part of the flame strip 16.
  • In Figs. 1 to 3 the metal fibre 17 extends across just a central portion of the flame strip 16, as is indicated by the lighter shaded ports 18 in Fig. 3, with a row of ports 18 at each end and side not covered by the metal fibre 17.
  • Fig. 4 shows a second gas burner 28 with a layer of metal fibre 30 extending wholly across the flame strip 16 and covering all of the ports 18. The metal fibre 17, 30 may be mounted to the body 12 by spot welding, and could be mounted on to the flame strip 16 during manufacture and prior to shaping of the body 12. As shown in Fig. 4, in some instances the metal fibre 17, 30 is required to only cover a part of the flame strip 16, and may for instance only be required to cover a central part of the flame strip 16.
  • The metal fibre is used to reduce or substantially eliminate noise or resonance during use of the burner. Leaving some of the ports uncovered by the metal fibre, provides for a retention of flame for instance with lean or poor gases, and thereby avoids nuisance shutdown of the burner.
  • There are thus described gas burners which require a reduced number of components relative to existing designs, thereby reducing manufacturing costs. Spot welding is only required for mounting metal fibre where required, and a significant cost, time and power requirement savings are made by using pressing rather than welding to mount together the body and the frame.
  • As welding of the body does not take place it may be possible to use thinner material than would otherwise be the case for the body. The peripheral mechanical join has been found to provide an improved seal around the body and frame, relative to conventional welding.
  • Various other modifications may be made without departing from the scope of the invention. Whilst a rectangular burner is illustrated here, it is to be realised that the invention can be used with a wide range of burner shapes, sizes and types. The ports may take any appropriate form.
  • Whilst pressing the frame on to a flange of the body has been described. Other mechanical joints could be provided between the body and frames.
  • Whilst endeavouring in the foregoing specification to draw attention to those features of the invention believed to be of particular importance it should be understood that the Applicant claims protection in respect of any patentable feature or combination of features hereinbefore referred to and/or shown in the drawings whether or not particular emphasis has been placed thereon.

Claims (15)

  1. A gas burner, the gas burner including a body defining a combustion chamber, the body comprising a profiled integral member, with a plurality of ports being provided extending through a face of the body to provide a flame strip, with a combustion surface on the external side of the flame strip, the gas burner also including a frame member which is mounted to the body by a mechanical joint.
  2. A gas burner according to claim 1, in which the frame member and body are mounted together by mechanical pressing.
  3. A gas burner according to claims 1 or 2, in which a flange is provided around the body.
  4. A gas burner according to claim 3 when dependent on claim 2, in which a part of the frame member is folded around the flange.
  5. A gas burner according to claims 3 or 4, in which the body comprises an at least generally planar part defining the flame strip, and side walls extending from the planar part, with the flange provided at opposite ends of the side walls from the planar part.
  6. A gas burner according to claim 5, in which the flame strip is domed.
  7. A gas burner according to any of the preceding claims, in which metal fibre is provided on the exterior side of the flame strip.
  8. A gas burner according to claim 7, in which the metal fibre is provided on only a part of the flame strip.
  9. A gas burner according to claim 8, in which the metal fibre is provided on just a central part of the flame strip.
  10. A gas burner according to any of claims 7 to 9, in which the metal fibre is mounted to the body by spot welding.
  11. A method of forming a gas burner, the method comprising forming a plurality of openings in a piece of planar material to define a flame strip with ports therethrough, mechanically shaping the planar material to define a body, and mounting the body to a frame member by forming a mechanical joint therebetween.
  12. A method according to claim 11, in which the body and frame member are mounted together by pressing.
  13. A method according to claims 11 or 12, in which a flange is provided on the body, and the frame member is profiled to engage on either side of the flange to provide a mechanical joint therebetween.
  14. A method according to any of claims 11 to 13, in which metal fibre is mounted on an external side of the flame strip.
  15. A method according to claim 14, in which the metal fibre is mounted on the flame strip by spot welding, and the metal fibre may be mounted on the flame strip prior to shaping of the planar material to form the body.
EP15165261.7A 2014-05-07 2015-04-27 Gas burner Not-in-force EP2942564B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1408002.2A GB2525873A (en) 2014-05-07 2014-05-07 Gas burner

Publications (2)

Publication Number Publication Date
EP2942564A1 true EP2942564A1 (en) 2015-11-11
EP2942564B1 EP2942564B1 (en) 2016-12-28

Family

ID=50980685

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15165261.7A Not-in-force EP2942564B1 (en) 2014-05-07 2015-04-27 Gas burner

Country Status (4)

Country Link
EP (1) EP2942564B1 (en)
ES (1) ES2620460T3 (en)
GB (1) GB2525873A (en)
PT (1) PT2942564T (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108571724A (en) * 2017-03-13 2018-09-25 林内株式会社 all-once combustion type burner
WO2020079445A1 (en) * 2018-10-17 2020-04-23 Worgas Burners Limited Method for forming a gas burner membrane
IT202000005191A1 (en) * 2020-03-11 2021-09-11 Beckett Thermal Solutions S R L BURNER

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0594262A1 (en) * 1992-10-23 1994-04-27 Gastec N.V. Gauze burner
EP0628146A1 (en) * 1992-03-03 1994-12-14 N.V. Bekaert S.A. Porous metal fiber plate
DE4443045A1 (en) * 1993-12-06 1995-06-08 Papst Motoren Gmbh & Co Kg Burner blower for gas burner
EP0751344A1 (en) * 1995-06-15 1997-01-02 British Gas plc Fuel fired burners
US20060251998A1 (en) * 2003-04-18 2006-11-09 Dinand Lamberts Metal burner membrane
US20120000456A1 (en) * 2009-03-06 2012-01-05 Giannoni France Door with a built-in burner for a heating appliance

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1381981A (en) * 1972-01-01 1975-01-29 Adaptogas Ltd Natural gas burner units
GB8531466D0 (en) * 1985-12-20 1986-02-05 Bray & Co Ltd Geo Longitudinal section gas burner
US5520536A (en) * 1995-05-05 1996-05-28 Burner Systems International, Inc. Premixed gas burner
EP0982541B1 (en) * 1998-08-28 2003-01-02 N.V. Bekaert S.A. Undulated membrane for radiant gas burners
EP1036983B1 (en) * 1999-03-18 2003-08-06 Worgas Bruciatori S.R.L. Tubular burner
US6461149B1 (en) * 2000-02-22 2002-10-08 Soloranics, Inc. Gas burner with controlled thermal expansion
GB2388182A (en) * 2002-04-30 2003-11-05 Thermaco Ltd A burner with an internal venturi arrangement

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0628146A1 (en) * 1992-03-03 1994-12-14 N.V. Bekaert S.A. Porous metal fiber plate
EP0594262A1 (en) * 1992-10-23 1994-04-27 Gastec N.V. Gauze burner
DE4443045A1 (en) * 1993-12-06 1995-06-08 Papst Motoren Gmbh & Co Kg Burner blower for gas burner
EP0751344A1 (en) * 1995-06-15 1997-01-02 British Gas plc Fuel fired burners
US20060251998A1 (en) * 2003-04-18 2006-11-09 Dinand Lamberts Metal burner membrane
US20120000456A1 (en) * 2009-03-06 2012-01-05 Giannoni France Door with a built-in burner for a heating appliance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108571724A (en) * 2017-03-13 2018-09-25 林内株式会社 all-once combustion type burner
WO2020079445A1 (en) * 2018-10-17 2020-04-23 Worgas Burners Limited Method for forming a gas burner membrane
IT202000005191A1 (en) * 2020-03-11 2021-09-11 Beckett Thermal Solutions S R L BURNER

Also Published As

Publication number Publication date
GB201408002D0 (en) 2014-06-18
EP2942564B1 (en) 2016-12-28
PT2942564T (en) 2017-04-03
ES2620460T3 (en) 2017-06-28
GB2525873A (en) 2015-11-11

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