EP1058054A1 - Atmospheric gas burner of longitudinal type with a radiating element which is generating lateral conduits for the stabilization of the flames - Google Patents

Atmospheric gas burner of longitudinal type with a radiating element which is generating lateral conduits for the stabilization of the flames Download PDF

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Publication number
EP1058054A1
EP1058054A1 EP00201845A EP00201845A EP1058054A1 EP 1058054 A1 EP1058054 A1 EP 1058054A1 EP 00201845 A EP00201845 A EP 00201845A EP 00201845 A EP00201845 A EP 00201845A EP 1058054 A1 EP1058054 A1 EP 1058054A1
Authority
EP
European Patent Office
Prior art keywords
raws
lateral
holes
flames
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Withdrawn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
EP00201845A
Other languages
German (de)
English (en)
French (fr)
Inventor
Timoteo Pezzutti
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1058054A1 publication Critical patent/EP1058054A1/en
Withdrawn legal-status Critical Current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
    • F23D14/02—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
    • F23D14/12—Radiant burners
    • F23D14/125—Radiant burners heating a wall surface to incandescence
    • 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
    • F23D14/26—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid with provision for a retention flame

Definitions

  • the present invention relates to an atmospheric gas burner of longitudinal type in which an element for radiating and for protecting the flames is shaped in such a way as to form relative small conduits near the lateral raws of primary flames Such small conduits develop respective slits which are debouching over the same primary flames in such a way as to produce corresponding pilot flames whenever the small conduits are suitably fuelled.
  • pilot flames serve to stabilize the primary flames as a so-called pilot tile or other equivalent devices.
  • Such burner is usable in various applications.
  • Atmospheric gas burners similar to the burner which is object of the present invention are already known as well as normally produced.
  • pilot tile is positioned on the portion opposite to the radiating plate as well as applied on the tubular cylindrical element which is gas-fuelled to produce the primary flames through suited holes.
  • the pilot tile forms an interspace which, whenever it is fuelled by a part of the air/gas fuel mixture coming through relative holes, produces relative pilot flames through the slits developed by its edges which are disposed near the holes of the primary flames.
  • said "pilot tile” is replaced with a special shape of the central part of the plate which is forming the radiating and protecting element of the flames.
  • the plate forming said radiating element is bent in its central portion in such a way as to create a curved longitudinal part which is fixed on the cylindrical tube generating the primary flame in order to delimite only one interspace which is acting as said "pilot tile".
  • the gas burner forming the object of the present invention is essentially formed by two basic elements only and precisely a main tubular element 1 and a planar element 2, both of them can be easily obtained as well as assembled by means of known and normally used apparatuses
  • the main tubular element I is obtained from a suitable piece of steel-tube that is shaped in such a way as to form a suitable tubular and cylindric length 11.
  • One end 12 of such tubular length 11 is closed, while the other end is connected to the air/gas fuel mixture feeding group 13 whose conformation and working are well known.
  • Two raws of primary holes 14 and two further raws of secondary holes 15 are realized on the sides of the tubular and cylindric length 11.
  • Such raws of primary holes 14 are symmetrically opposite to each other.
  • the raws of secondary holes 15 are disposed in the same part with respect to the previous raws as well as near and parallelly equidistant to them.
  • the radiating element 2 is very similar to the other radiating elements which are used in the same kind of burners.
  • Such radiating element 2 will be obtained, as usual, by cutting a suitable steel-sheet in the form of a rectangle that will be successively shaped in the hereinafter described way.
  • Such bending forms a first arc-shaped length 21 having an inner radius of curvature which equals the outer radius of curvature of the tubular cylindrical length 11.
  • Such first arc-shaped length 21 is extending as far as near the raws of secondary holes 15 which are realized through the tubular cylindrical length 11 and, finally, it is tightly fixed to the part included between said raws of secondary holes 15.
  • the lateral edges of the first arc-shaped length 21 join to two curved portions which are bent outwards in such a way as to develop corresponding longitudinal and arcuate cavities which are forming two lateral conduits 22 having a small cross section.
  • conduits 22 are positioned coaxially to the relative raves of secondary holes 15 and, with their lateral and outer edges, are ending near the raws of the primary holes 14 and are slightly-spaced from the relative outer surface of the tubular cylindrical length 11 in order to form narrow slits which are suited to produce the pilot flames F2 as it will be hereinafter described.
  • the lateral and outer edges of the said lateral conduits 22 are joined to respective lateral wings 23 each of them is forming a relative radiating portion of the burner.
  • each lateral wings 23 comprises a first short length 23a which departs, with a sharp-joint, from the lateral outer edge of a relative lateral conduit 22 , it diverges outwards as well as turned towards the same part of the above first arc-shaped length 21 and, finally, it joins to a planar length 23c by means of a radial portion 23b.
  • planar lengths 23c follow convergent directions which are slightly and symmetrically inclined inwards. It is obvious that the planar lengths 23c could also be disposed in coplanar positions
  • the fuel mixture is formed ,as known, in the end of the feeding group 13 and it is introduced in the inside of the tubular cylyndrical length 11 by this feeding group.
  • the fuel mixture goes out of the tubular length 11.
  • a part of the fuel mixture goes out through the pnmary holes 14 and another part of the fuel mixture goes out through the secondary holes 15, thus forming, upon suited ignition, respective primary flames Fl and pilot flames F2 .
  • Such primary flames Fl and pilot flames F2 lick the respective lateral wings 23 which are so heated as to emit heat irradiation.
  • the realization and the assembly can be carried out by means of few operations which are easy to do in a short time.
  • the burner forming the object of the present invention is very compact, it presents a notable structural simplicity, thus making the burner very economic, and it removes all the prevalent drawbacks which happen in the same kind of burners
  • the burner forming the object of the present invention offers a longer service life, a greater efficiency and superior performances which cover a wide working range thus allowing a notable reducibility of the maximum power rating, which can decrease to 1/6 of the same value, and always under top safety and reliability conditions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
EP00201845A 1999-06-01 2000-05-25 Atmospheric gas burner of longitudinal type with a radiating element which is generating lateral conduits for the stabilization of the flames Withdrawn EP1058054A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1999PN000045A IT1311226B1 (it) 1999-06-01 1999-06-01 Bruciatore atmosferico a gas di tipo longitudinale conelemento radiante generante condotti laterali di stabilizzazione
ITPN990045 1999-06-01

Publications (1)

Publication Number Publication Date
EP1058054A1 true EP1058054A1 (en) 2000-12-06

Family

ID=11395530

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00201845A Withdrawn EP1058054A1 (en) 1999-06-01 2000-05-25 Atmospheric gas burner of longitudinal type with a radiating element which is generating lateral conduits for the stabilization of the flames

Country Status (2)

Country Link
EP (1) EP1058054A1 (it)
IT (1) IT1311226B1 (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007003484A3 (en) * 2005-06-30 2008-01-10 Castfutura Spa Oven or grill burner

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1388300A (fr) * 1964-03-10 1965-02-05 Brûleur de gril perfectionné
US3322112A (en) * 1965-04-13 1967-05-30 Harper Wyman Co Infrared gas burner
US4416249A (en) * 1976-12-10 1983-11-22 Reynolds Howard R Oven burner radiant
IT1225116B (it) * 1988-07-15 1990-11-02 Timoteo Pezzutti Bruciatore a gas di tipo longitudinale provvisto superiormente di elemento radiante e di protezione

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1388300A (fr) * 1964-03-10 1965-02-05 Brûleur de gril perfectionné
US3322112A (en) * 1965-04-13 1967-05-30 Harper Wyman Co Infrared gas burner
US4416249A (en) * 1976-12-10 1983-11-22 Reynolds Howard R Oven burner radiant
IT1225116B (it) * 1988-07-15 1990-11-02 Timoteo Pezzutti Bruciatore a gas di tipo longitudinale provvisto superiormente di elemento radiante e di protezione

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007003484A3 (en) * 2005-06-30 2008-01-10 Castfutura Spa Oven or grill burner

Also Published As

Publication number Publication date
ITPN990045A1 (it) 2000-12-01
ITPN990045A0 (it) 1999-06-01
IT1311226B1 (it) 2002-03-04

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