US1410942A - Liquid-fuel burner - Google Patents

Liquid-fuel burner Download PDF

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Publication number
US1410942A
US1410942A US422649A US42264920A US1410942A US 1410942 A US1410942 A US 1410942A US 422649 A US422649 A US 422649A US 42264920 A US42264920 A US 42264920A US 1410942 A US1410942 A US 1410942A
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United States
Prior art keywords
fuel
liquid
steam
fuel burner
tube
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Expired - Lifetime
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US422649A
Inventor
Mann Harold Cornwallis
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CHEMICAL ENGINEERING
WILTON S PATENT FURNACE COMPAN
WILTON'S PATENT FURNACE Co Ltd
Original Assignee
WILTON S PATENT FURNACE COMPAN
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.)
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Publication date
Application filed by WILTON S PATENT FURNACE COMPAN filed Critical WILTON S PATENT FURNACE COMPAN
Priority to US422649A priority Critical patent/US1410942A/en
Application granted granted Critical
Publication of US1410942A publication Critical patent/US1410942A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/10—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour

Definitions

  • This invention relates to liquid fuel burn ers of the type described in patent specication 22753/1904 in which fuel air and steam pass through a central tube in the burner, the fuel being atomized by a helical blade and by a blast of steam which passes through an annular orifice at the nozzle.
  • the object of this invention is to provide an improved burner of this type.
  • the steam7 air and fuel pass into the central tube through a Venturi tube.
  • the drawing filed herewith is a longitudinal section of one form of burner made in accordance with this invention
  • c is a Venturi tube
  • Y a steam jet
  • ca liquid fuel cup to admit fuel and air to the Venturi tube
  • l is a spreader
  • e a spiral vane around the spreader
  • j' is an annular orifice for the fuel and steam.
  • g is an external tube to which steam is admitted at L
  • y' j are orificesv for the steam arranged round the annular' orifice j.
  • g is an annular chamber between the external tube and the Venturi tube.
  • the coned shaped spreader e tends to increase thevelocity of the mixture of air steam and fuel after it has passed through the Venturi construction and counteracts the loss of velocity due to the friction of the spiral vane e.
  • the oil being fed into the cup c carries with it suiiicient air for the complete combustion of the fuel and the steanrissit ing from the jet b and passing round the spiral vane e draws the fuel along with it and atomizes it, the atomization being 'further effected by the coned spreader and bv the steam issuing from the oriiices y' j.
  • This steam therefore, serves the purpose ⁇ of an injection of water vapour into the flame thereby assisting the complete combustion of the fuel in the furnace by being split flame when issuing from the spreader in the i Yenturi tube.
  • a Venturi tube within the external tube and spaced therefrom to form an annular chamber between the said tubes, means for admitting fuel and air to the Venturi tube,

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

Description

H. C. MANN..
LIQUID FUEL BURNER.
APPLlcAnoN msn no v. a, 1920.
Patented Mar. 28, 1922.
UNITED STATES PATENT OFFICE.
HAROLD CORNWALLIS MANN, OF LONDON, ENGLAND, ASSIGN OR 0E ONE-HALF T0 THE CHEMICAL ENGINEERING AND WILTONS PATENT FURNACE COMPANY LIMITED,
OF HENDON, LONDON, ENGLAND.
` LIQUID-FUEL BURNER.
Specification of Letters Patent. Patented llIaJl. 2S, 1922.
Application led November 8, 1920. Serial No. 422,649.
To all whom t may concern.'
Be it known that I, HARoLD CouNwALLis MANN, of 48 Normanton Avenue, VVimbledon Park, London, England, a. subject of the King of Great Britain and Ireland, have invented certain new and useful Improvements in or Relating to Liquid-I `uel Burners, of which the following is a specification.
This invention relates to liquid fuel burn ers of the type described in patent specication 22753/1904 in which fuel air and steam pass through a central tube in the burner, the fuel being atomized by a helical blade and by a blast of steam which passes through an annular orifice at the nozzle. v
The object of this invention is to provide an improved burner of this type.
According to this invention the steam7 air and fuel pass into the central tube through a Venturi tube.
The drawing filed herewith" is a longitudinal section of one form of burner made in accordance with this invention c is a Venturi tube, Y) a steam jet, ca liquid fuel cup to admit fuel and air to the Venturi tube, l is a spreader, e a spiral vane around the spreader c', j' is an annular orifice for the fuel and steam. g is an external tube to which steam is admitted at L, y' j are orificesv for the steam arranged round the annular' orifice j. g is an annular chamber between the external tube and the Venturi tube.
The coned shaped spreader e tends to increase thevelocity of the mixture of air steam and fuel after it has passed through the Venturi construction and counteracts the loss of velocity due to the friction of the spiral vane e.
In use the oil being fed into the cup c carries with it suiiicient air for the complete combustion of the fuel and the steanrissit ing from the jet b and passing round the spiral vane e draws the fuel along with it and atomizes it, the atomization being 'further effected by the coned spreader and bv the steam issuing from the oriiices y' j.
This steam therefore, serves the purpose `of an injection of water vapour into the flame thereby assisting the complete combustion of the fuel in the furnace by being split flame when issuing from the spreader in the i Yenturi tube.
What I claim and desire to secure by Let g ters Patent is n In a liquld fuel burner, an external tube,
. a Venturi tube within the external tube and spaced therefrom to form an annular chamber between the said tubes, means for admitting fuel and air to the Venturi tube,
HAROLD CORNVVALLIS MANN. I
US422649A 1920-11-08 1920-11-08 Liquid-fuel burner Expired - Lifetime US1410942A (en)

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Application Number Priority Date Filing Date Title
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US1410942A true US1410942A (en) 1922-03-28

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3175817A (en) * 1960-11-28 1965-03-30 Union Carbide Corp Burner apparatus for refining metals
US4195779A (en) * 1974-08-30 1980-04-01 Exxon Research & Engineering Co. Mixing apparatus with outlet nozzle and uses thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3175817A (en) * 1960-11-28 1965-03-30 Union Carbide Corp Burner apparatus for refining metals
US4195779A (en) * 1974-08-30 1980-04-01 Exxon Research & Engineering Co. Mixing apparatus with outlet nozzle and uses thereof

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