US3639094A - Space-heating burner - Google Patents

Space-heating burner Download PDF

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Publication number
US3639094A
US3639094A US5716A US3639094DA US3639094A US 3639094 A US3639094 A US 3639094A US 5716 A US5716 A US 5716A US 3639094D A US3639094D A US 3639094DA US 3639094 A US3639094 A US 3639094A
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US
United States
Prior art keywords
oxidant
outlet
delivery tube
burner
nozzle
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.)
Expired - Lifetime
Application number
US5716A
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English (en)
Inventor
Gerard Pierre Marie-Jos Dupont
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3639094A publication Critical patent/US3639094A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D17/00—Burners for combustion simultaneously or alternately of gaseous or liquid or pulverulent fuel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S239/00—Fluid sprinkling, spraying, and diffusing
    • Y10S239/07—Coanda

Definitions

  • ABSTRACT The invention concerns a space-heating burner particularly for furnaces, which produces optimum mixing of the two combustion components, characterized by the fact that the oxidam is stored under pressure in an enclosed space comprising a delivery tube lengthened on the outside by a drip-flap or lip set at a tangent to the outlet, then progressively turned back so that the jet is directed perpendicular to the outlet direction of the delivery tube, a standard type of fuel outlet nozzle being positioned close to this drip-flap in such a way that the oxidant thus injected draws up by suction the info forced out of the nozzle, to form a homogenous combustion mixture.
  • the invention concerns a space-heating burner more particularly, but not exclusively, for brick-making, glassmaking, metallurgy, etc.
  • One of the aims of the present invention is to prevent this drawback. It also aims at proposing a material which produces an intense mixture of the components of this combustion and absolute dilution of the mixture within the enclosed space to be heated.
  • one of the components is brought, under pressure, to a delivery tube formed by an out let slit to the open air, one edge of which is extended to make a drip-flap which is first of all at a tangent to the exit and then progressively turned back opposite to the other edge of the slit in order to direct the jet, with a standard type outlet nozzle for the other component being provided near to this drip-flap.
  • FIG. I represents an axial section view of a burner in accordance with the invention.
  • FIG. 2 represents a schematic view of a production variant of this burner.
  • FIG. 3 represents a schematic view illustrating a particular method of using this burner.
  • FIG. 4 represents a schematic view of an enclosed space within which is placed the burner in accordance with the invention.
  • This burner comprises a chamber I made up of a double casing 1 -1 insulated by a layer of thermal insulating material 1
  • This chamber serves for the storing of a gaseous constituent, preferably the more voluminous one such as, for example, pressurized air, this constituent leaving via a rectilinear or curved slit 2 tangential to a drip-flap or convex lip 3.
  • a gaseous constituent preferably the more voluminous one such as, for example, pressurized air
  • a nozzle 4 positioned near to the drip-flap 3 will thus enable the combustible injected into it (gas or atomized liquid) to be mixed with this jet.
  • the jet will then comprise the combustible, the oxidant, with part of the furnace atmosphere thus adding the calories which facilitate firing of the whole and a mass sufficient to dilute them afterwards and avoid too hot a flame.
  • the kinetic energy of the driving element thus serves to suck up the furnace atmosphere all around the flame jet and to direct it by means of the drip-plate 3 in a beam diverging mostly in the direction F indicated.
  • the combustible serves as atomized fuel, the oxidant as air or oxygen.
  • the oxidant as air or oxygen.
  • FIG. 4 A particular method of using this burner in a ceramic-liring oven is shown in FIG. 4.
  • this oven of a type already known atomized fuel burned badly, on the one hand because of the lack of oxygen and on the other hand because the fuel was slow to ignite.
  • Use of the burner forming the object ofthis invention allows this upper volume to be swept by a hot gas jet and in addition prevents the dangerous effects of too hot a flame.
  • FIG. 2 shows a gas burner with a radiating flame.
  • this burner only part of the oxidant air is admitted into a chamber 1 and the gaseous fuel via a tube 4.
  • the jet of the mixture so produced follows the flat surface 6 of the piping 7 and can be ignited there. Due to lack of oxygen, the incomplete combustion of the gases produces fine carbon particles.
  • the piping 7 leads the superfluous oxidant to the nozzle 2 terminating in the drip-flap 3. The incompletely burned mixture suddenly mixing again with extra air then provides a radiating flame.
  • FIG. 3 a similar process is used to reoxygenate a reducing flame.
  • a burner of the first type described is regulated as a reducer for needs of ambience.
  • the lacking oxidant is reincorporated via an injector 8 of the same type blowing axially to thejet by means of the drip'flap 3. The intense mixture of the twojets A and B will allow combustion to be completed.
  • a burner especially for a furnace for heating products such as ceramics, terra-cotta or the like comprising an oxidant delivery tube having an outlet with a deflecting convex lip for directing oxidant tangentially to the outlet, the burner being characterized in that it comprises two chambers and a nozzle, one of said chambers being an oxidant chamber communicating with the inlet of said delivery tube, and the other of said chambers being a fuel chamber communicating with the inlet of said nozzle, said delivery tube outlet being a rectilinear slit and the nozzle outlet being located near said deflecting lip of the delivery tube so that oxidant issuing from said slit will draw in surrounding atmosphere of the furnace and mix with fuel issuing from the nozzle in order to produce a jet directed in a path substantially parallel to the direction of the deflecting lip.
  • a burner as defined in claim 1 characterized by the fact that a second oxidant delivery tube having an outlet with a deflecting convex lip is located beside said jet path for adding oxidant to said jet.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Of Fluid Fuel (AREA)
US5716A 1969-01-30 1970-01-26 Space-heating burner Expired - Lifetime US3639094A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6901978A FR2030486A5 (enrdf_load_stackoverflow) 1969-01-30 1969-01-30

Publications (1)

Publication Number Publication Date
US3639094A true US3639094A (en) 1972-02-01

Family

ID=9028404

Family Applications (1)

Application Number Title Priority Date Filing Date
US5716A Expired - Lifetime US3639094A (en) 1969-01-30 1970-01-26 Space-heating burner

Country Status (5)

Country Link
US (1) US3639094A (enrdf_load_stackoverflow)
BE (1) BE744685A (enrdf_load_stackoverflow)
DE (1) DE1956997A1 (enrdf_load_stackoverflow)
FR (1) FR2030486A5 (enrdf_load_stackoverflow)
GB (1) GB1304891A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3876362A (en) * 1973-04-23 1975-04-08 Yasuo Hirose Method of combustion

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2052869A (en) * 1934-10-08 1936-09-01 Coanda Henri Device for deflecting a stream of elastic fluid projected into an elastic fluid
US2990103A (en) * 1958-09-08 1961-06-27 Sebac Nouvelle Sa Jet exhauster
US3319692A (en) * 1965-06-01 1967-05-16 Iit Res Inst Oil burner
US3399022A (en) * 1967-01-23 1968-08-27 Operation Oil Heat Associates Annular burner apparatus providing blue-flame combustion of domestic fuel oil

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2052869A (en) * 1934-10-08 1936-09-01 Coanda Henri Device for deflecting a stream of elastic fluid projected into an elastic fluid
US2990103A (en) * 1958-09-08 1961-06-27 Sebac Nouvelle Sa Jet exhauster
US3319692A (en) * 1965-06-01 1967-05-16 Iit Res Inst Oil burner
US3399022A (en) * 1967-01-23 1968-08-27 Operation Oil Heat Associates Annular burner apparatus providing blue-flame combustion of domestic fuel oil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3876362A (en) * 1973-04-23 1975-04-08 Yasuo Hirose Method of combustion

Also Published As

Publication number Publication date
DE1956997A1 (de) 1970-08-06
BE744685A (fr) 1970-07-01
FR2030486A5 (enrdf_load_stackoverflow) 1970-11-13
GB1304891A (enrdf_load_stackoverflow) 1973-01-31

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