EP0472270A1 - Gasbrenner - Google Patents

Gasbrenner Download PDF

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Publication number
EP0472270A1
EP0472270A1 EP91305656A EP91305656A EP0472270A1 EP 0472270 A1 EP0472270 A1 EP 0472270A1 EP 91305656 A EP91305656 A EP 91305656A EP 91305656 A EP91305656 A EP 91305656A EP 0472270 A1 EP0472270 A1 EP 0472270A1
Authority
EP
European Patent Office
Prior art keywords
gas burner
baffle
outlet region
apertures
burner
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Withdrawn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
EP91305656A
Other languages
English (en)
French (fr)
Inventor
Jan Aede Stapensea
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.)
Furigas UK Ltd
Original Assignee
Furigas UK 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 Furigas UK Ltd filed Critical Furigas UK Ltd
Publication of EP0472270A1 publication Critical patent/EP0472270A1/de
Withdrawn legal-status Critical Current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, e.g. noise reduction means
    • F23D14/48—Nozzles
    • F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
    • 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
    • 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
    • F23D14/70—Baffles or like flow-disturbing devices
    • 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
    • F23D2203/1012—Flame diffusing means characterised by surface shape tubular

Definitions

  • the invention relates to a gas burner.
  • a known gas burner is disclosed in European patent application no. 0172945. This discloses a gas burner having a tubular burner housing and a gas air mixing tube mounted co-axially within the housing. In the top surface of the burner housing, a pre-determined pattern of burner apertures is provided, the pattern consisting of an array of slots and holes. This is one example of a burner of this type. In this type of burner there may be a problem caused by turbulence in the gas flow leading to an uneven flow of gas through the burner apertures. This can cause the burner flame to "jump" thus resulting in noise which may be undesirable.
  • a gas burner comprising a hollow body having an inlet and a perforated outlet region and a baffle provided in the body, the baffle lying closely adjacent the outlet region so as to extend over at least a substantial part of the outlet region, the baffle including apertures to permit fluid passage therethrough.
  • baffle and outlet region are spaced apart by a mean spacing of between 2mm and 3mm.
  • the baffle may be provided at a mean spacing of between about 2.4mm and 2.6mm from the outlet region and preferably is provided at a mean distance of about 2.5mm from the outlet region. This spacing has been found to give optimum results.
  • the baffle is preferably such that the gas passing into the inlet must pass through the baffle to reach the outlet region.
  • the baffle may be, for example, of a corrugated form, the baffle is preferably provided at a substantially constant spacing from the outlet region.
  • the baffle may take any suitable form but preferably comprises a sheet having apertures defined therein.
  • the sheet apertures may be of any cross-section in relation to the perforations in the outlet region, but preferably are of larger cross-section than the perforations in the outlet region. This arrangement provides a good even flow of gas and also means that the baffle sheet may be a less complex item to manufacture than the outlet.
  • the apertures may be arranged in longitudinal rows and the perforations may also be arranged in longitudinal rows.
  • the perforations of the outlet region may be arranged as a regular array of holes and slots.
  • the holes and slots are provided alternately as a slot and then a row of holes and then a slot and so on.
  • the outlet region is cylindrical. In another preferred embodiment the outlet region may be part cylindrical and in that case the burner may be generally flat. In the case where the outlet region is part cylindrical and the baffle is provided as an apertured sheet, the sheet apertures preferably decrease in size in the circumferential direction from the centre of the baffle. This arrangement provides a lower rate of flow at the edges of the burner which is desirable in reducing noise from the burner.
  • the outlet region may be an integral part of the body or may be provided in a separate component attached to the remainder of the body in any suitable way.
  • a spreader plate may be provided between the baffle plate and the inlet.
  • the gas burner is preferably a pre-mixed gas burner.
  • the embodiment 10 comprises a formed lower tray 11 having a broad flange 6 extending outwardly from its walls 5.
  • a flat spreader plate 12 is provided on top of the tray 11 and a top skin 13 is provided on top of the spreader plate 12.
  • the spreader plate 12 and the top skin 13 overlap the flange 6.
  • the side edges 4 of the flange 6 are crimped over to secure the perforated foil 13 and spreader plate 12.
  • fasteners such as rivets 3 are provided in apertures 9 formed in the crimped region.
  • a lower chamber is formed between the tray 11 and the spreader plate 12 and an upper chamber 7 is formed between the top skin 13 and the spreader plate 12.
  • the upper chamber 7 is sealed at each end by end caps 14.
  • the end caps 14 are generally in cup form and are inserted between the top skin 13 and spreader plate 13 so as to be outwardly facing.
  • the lower edges 1 of the end caps protrude from the top skin 13 and the side edges of the flange 6 are crimped therearound to hold the end caps 14.
  • An inlet aperture 15 is provided in the lower surface of the tray 11. Also in the lower chamber is provided a transverse baffle 16.
  • the baffle 16 is V-shaped in cross-section and is mounted along its lower edge to the floor of tray 11.
  • a fan locating plate 17 Secured to the underside of the tray 11 is a fan locating plate 17 to which is attached a fan locating bracket 18.
  • a fan (not shown) in use is mounted on the bracket to drive the mixed gases into the inlet 15.
  • the top skin 13 comprises upstanding walls 19 connected by an upper part 21.
  • a pattern of perforations 20 is provided in the upper part 21.
  • Fig. 1 shows only some of the perforations which extend in a rectangular array in the pattern shown over almost the entire upper part 21 of the top skin 13.
  • the perforations 20 are provided in transverse rows 22 each row comprising a transverse slot 29 followed by a line of three round holes 30 and that pattern being repeated across row 22.
  • the line of holes 30 is of the same length as the transverse slot 29.
  • Adjacent rows 22 are offset by half a pattern repeat so that a transverse slot 29 in one row 22 is alongside a line of holes 30 in the adjacent row.
  • Two end strips 23 are provided at each end of the upper part 21 of the foil 13. Each end strip 23 extend over sthe end of the foil 13 and the top wall of the end cap 14 to create a seal between these components.
  • a baffle sheet 24 is provided in the upper chamber.
  • the baffle sheet 24 is provided at a substantially constant spacing of about 2.5mm between the upper surface of the baffle sheet 24 and the upper surface of the top skin 13.
  • the thickness of the top skin 13 is about 0.25mm and the thickness of the baffle sheet 24 is about the same.
  • the edges 25 of the sheet 24 lie in contact with the foil sides 19 and are secured thereto.
  • the baffle sheet 24 is held in position in relation to the upper part of the foil 13 by two longitudinal angle sections 26 which are mounted between the end caps 14. Between the angle sections 26, five longitudinal rows 31 of equally spaced apertures 27 are provided.
  • the apertures 27 in each row 31 are circular and are of the same size.
  • the apertures 27 in the central row are larger than in the rows adjacent them which in turn are larger than the apertures in the outer rows.
  • Longitudinal slots 28 are provided adjacent the edges of the spreader plate 12 to allow communication between the upper and lower chambers 7,8.
  • pre-mixed gas and air are driven through the inlet 15 by a fan and the mixture spreads through the lower chamber 8 and enters the upper chamber 7 through the longitudinal apertures 28.
  • the mixture passes through the baffle sheet 24 and through the perforations 20 in the upper surface of the top skin 13 to burn.
  • Fig. 5 shows a second embodiment in which the burned 40 is generally cylindrical having a cylindrical perforated outer skin 41 bounded by circular end caps 42 in one of which is formed an axially disposed inlet opening 43.
  • the outer skin 41 has the same pattern of holes 30 and slots 29 as the upper part 21 of the top skin 13 in the first embodiment.
  • a cylindrical baffle sheet 44 is provided behind the perforated outer skin 41 and the outer surface of the baffle sheet 44 is spaced from the outer surface of the outer skin 41 by about 2.5mm.
  • the baffle sheet 44 includes a regular rectangular array of round apertures 45 of equal size.
  • pre-mixed gas and air is introduced through the inlet 43 and passes through the apertures 45 in the baffle sheet 44 to the holes 30 and slots 29 in the outer skin 41 on exit from which the mixture is burnt.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
EP91305656A 1990-06-21 1991-06-21 Gasbrenner Withdrawn EP0472270A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909013849A GB9013849D0 (en) 1990-06-21 1990-06-21 A gas burner
GB9013849 1990-06-21

Publications (1)

Publication Number Publication Date
EP0472270A1 true EP0472270A1 (de) 1992-02-26

Family

ID=10677979

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91305656A Withdrawn EP0472270A1 (de) 1990-06-21 1991-06-21 Gasbrenner

Country Status (2)

Country Link
EP (1) EP0472270A1 (de)
GB (1) GB9013849D0 (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2292794A (en) * 1994-08-26 1996-03-06 Caradon Ideal Ltd Gas burners
EP0809071A1 (de) * 1995-05-05 1997-11-26 Burner Systems International, Inc. Vormischgasbrenner
NL1003311C2 (nl) * 1996-06-10 1997-12-17 Radson Alutherm Nv Vlamverdeelinrichting bestemd voor een brander van een warmwatertoestel.
EP0813836A1 (de) * 1996-06-20 1997-12-29 Electrolux Zanussi Grandi Impianti S.p.A. Verbesserungen an der Wirbelbildungsvorrichtung von einem Gas-beheizten Frietiergerät
GB2316479B (en) * 1996-08-14 1999-12-15 Aeromatic Co Ltd Improvements in or relating to gas burners
EP1496309A2 (de) * 2003-07-08 2005-01-12 Aeromatix Limited Gasbrenner
ITMI20100791A1 (it) * 2010-05-05 2011-11-06 Worgas Bruciatori Srl Bruciatore a gas per caldaia
EP3064831A1 (de) * 2015-02-16 2016-09-07 Worgas Bruciatori S.r.l. Gasbrenner für ein heizgerät
US9654486B2 (en) 2015-09-30 2017-05-16 AO Kaspersky Lab System and method for generating sets of antivirus records for detection of malware on user devices
DE102013106981B4 (de) * 2013-07-03 2020-11-26 Dieter Engel Brennerrohranordnung und Verfahren zur Herstellung einer Brennerrohranordnung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT312868B (de) * 1971-05-04 1974-01-25 Auergesellschaft Gmbh Gasbrenner mit einem als Blechteil hergestellten Brennerrohr
DE2121897B2 (de) * 1971-05-04 1977-06-30 Joh. VaillantKG, 5630 Remscheid Reihengasbrenner
GB1514933A (en) * 1975-08-18 1978-06-21 Greaves D Lint removal in gas burners
EP0172945A1 (de) * 1984-08-24 1986-03-05 Furigas B.V. Gasbrenner
DE3831624A1 (de) * 1987-09-26 1989-04-06 Ruhrgas Ag Gasbrenner
DE3833169A1 (de) * 1987-09-30 1989-04-13 Vaillant Joh Gmbh & Co Brenner, insbesondere gasbrenner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT312868B (de) * 1971-05-04 1974-01-25 Auergesellschaft Gmbh Gasbrenner mit einem als Blechteil hergestellten Brennerrohr
DE2121897B2 (de) * 1971-05-04 1977-06-30 Joh. VaillantKG, 5630 Remscheid Reihengasbrenner
GB1514933A (en) * 1975-08-18 1978-06-21 Greaves D Lint removal in gas burners
EP0172945A1 (de) * 1984-08-24 1986-03-05 Furigas B.V. Gasbrenner
DE3831624A1 (de) * 1987-09-26 1989-04-06 Ruhrgas Ag Gasbrenner
DE3833169A1 (de) * 1987-09-30 1989-04-13 Vaillant Joh Gmbh & Co Brenner, insbesondere gasbrenner

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0698766A3 (de) * 1994-08-26 1996-09-04 Caradon Ideal Ltd Gasbrenner
GB2292794A (en) * 1994-08-26 1996-03-06 Caradon Ideal Ltd Gas burners
EP0809071A1 (de) * 1995-05-05 1997-11-26 Burner Systems International, Inc. Vormischgasbrenner
EP0816758A1 (de) * 1996-06-10 1998-01-07 N.V. Radson-Alutherm Flammenverteilvorrichtung für einen Brenner eines Heisswassergerätes
NL1003311C2 (nl) * 1996-06-10 1997-12-17 Radson Alutherm Nv Vlamverdeelinrichting bestemd voor een brander van een warmwatertoestel.
US5746195A (en) * 1996-06-20 1998-05-05 Electrolux Zanussi Grandi Impianti S.P.A. Flow turbulence creating arrangement of a gas-fired deep fat fryer
EP0813836A1 (de) * 1996-06-20 1997-12-29 Electrolux Zanussi Grandi Impianti S.p.A. Verbesserungen an der Wirbelbildungsvorrichtung von einem Gas-beheizten Frietiergerät
GB2316479B (en) * 1996-08-14 1999-12-15 Aeromatic Co Ltd Improvements in or relating to gas burners
EP1496309A2 (de) * 2003-07-08 2005-01-12 Aeromatix Limited Gasbrenner
EP1496309A3 (de) * 2003-07-08 2006-06-14 Aeromatix Limited Gasbrenner
ITMI20100791A1 (it) * 2010-05-05 2011-11-06 Worgas Bruciatori Srl Bruciatore a gas per caldaia
EP2385301A1 (de) * 2010-05-05 2011-11-09 WORGAS BRUCIATORI S.r.l. Gasbrenner für Heizkessel
DE102013106981B4 (de) * 2013-07-03 2020-11-26 Dieter Engel Brennerrohranordnung und Verfahren zur Herstellung einer Brennerrohranordnung
EP3064831A1 (de) * 2015-02-16 2016-09-07 Worgas Bruciatori S.r.l. Gasbrenner für ein heizgerät
US9654486B2 (en) 2015-09-30 2017-05-16 AO Kaspersky Lab System and method for generating sets of antivirus records for detection of malware on user devices

Also Published As

Publication number Publication date
GB9013849D0 (en) 1990-08-15

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