US3658302A - Feed unit for a fuel burner - Google Patents

Feed unit for a fuel burner Download PDF

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Publication number
US3658302A
US3658302A US889623A US3658302DA US3658302A US 3658302 A US3658302 A US 3658302A US 889623 A US889623 A US 889623A US 3658302D A US3658302D A US 3658302DA US 3658302 A US3658302 A US 3658302A
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US
United States
Prior art keywords
feed unit
blade
chamber
plate
premixture
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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
US889623A
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English (en)
Inventor
Louis Duthion
Claude Jean-Marie Seguela
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Individual
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Individual
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Publication of US3658302A publication Critical patent/US3658302A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F23K5/02—Liquid fuel
    • F23K5/08—Preparation of fuel
    • F23K5/10—Mixing with other fluids
    • F23K5/12—Preparing emulsions
    • 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

  • a feed unit for a fuel burner has first and second conduit means for supplying liquid hydrocarbon and an emulsifying liquid, for example water, to a premixing chamber from which the premixture is conducted to a mixing chamber in which there is an injection nozzle with an opening through which a jet of the emulsion is emitted and causes a member located in the path of the jet to be vibrated so as to emulsify the emulsion.
  • a feed unit for a fuel burner has first and second conduit means for supplying liquid hydrocarbon and an emulsifying liquid, for example water, to a premixing chamber from which the premixture is conducted to a mixing chamber in which there is an injection nozzle with an opening through which a jet of the emulsion is emitted and causes a member located in the path of the jet to be vibrated so as to emulsify the emulsion.
  • the invention provides a feed unit for fuel burners, for the supply of an emulsion of a liquid in a liquid hydrocarbon to a burner, said unit comprising a casing, a premixing chamber in the casing, first conduit means in the casing for conducting liquid hydrocarbon to the chamber, second conduit means in said casing for conducting an emulsifying liquid to the chamber, a plate adjacent the premixing chamber, having passages therein, a mixing chamber into which the premixture of liquid hydrocarbon and emulsifying liquid is conducted from the premixing chamber by the passages in said plate, an injection nozzle in said mixing chamber having an injection opening, and a vibratory member located opposite said injection opening in the path of the jet of premixture issuing from said opening, for emulsifying the premixture.
  • the plate, the injection nozzle and the vibratory member are removable and replaceable with others, whereby the same unit may be adapted for use with burners supplied with fuel of different types and in different quantities.
  • FIG. 1 is a side elevation of a feed unit embodying the invention
  • FIG. 2 is a sectional view along line lI-lI of FIG. 1;
  • FIG. 3 is a sectional view along line III-III of FIG. 4, illustrating a different embodiment of the invention
  • FIG. 4 is a sectional view along line IVIV of FIG. 3;
  • FIGS. 5 and 6 are plan views of a nozzle and vibratory plate
  • FIG. 7 is a sectional view of a detail of FIG. 2;
  • FIG. 8 is view in elevation of a still different embodiment of the invention.
  • FIG. 9 is a sectional view along line IXlX of FIG. 8.
  • FIG. 10 is a sectional view along line X--X of FIG. 8.
  • FIGS. 1 and 2 comprises a first supply system or conduit means 1 for supplying hydrocarbon under pressure, for example fuel oil, and a second supply system or conduit means 2 for the supply of an emulsifying liquid, for example water, both supply systems being arranged in a member 3 forming a part of a casing 3a of the unit.
  • the member 3 and the casing 3a form a compact block in the shape of a parallelepiped (FIG. 1) and preferably of square cross section.
  • the supply systems 1 and 2 to which fluid is supplied by a pump (not shown), connect with passages 1a and 2a which converge and lead into a premixing chamber 4 adjacent a plate 5, preferably circular, provided with converging passages 6 that receive a first premixture which is thereafter distributed in a mixing chamber 7.
  • a mixing chamber 7 At the end of this chamber there is mounted an injection nozzle 8 having a slit or opening 8a through which a thin jet of the mixture is delivered and impinges upon a ridge 9a of a flat blade 9 secured by screws 10 to a casing member 11.
  • the blade 9 (see FIG. 6) is relatively thin (of the order of 0.1 millimeter) and comprises two ridges, preferably of the same concavity.
  • the longitudinal median planes of the slit 8a and of the blade 9 are substantially parallel. These planes may be slightly spaced transversely so that the jet issuing from the slit or opening will provide the initial impulse without striking the blade 9 symmetrically, the subsequent vibrations being maintained by the jet issuing from said opening.
  • Several plates 5 may be mounted in series.
  • a conical recess 5a (FIG. 7) in the plate 5 allows for the creation of whirls which insure a good premixing of the fluids issuing from the passages 1a and 20; such recess, however, is not absolutely necessary.
  • the passages 6 in plate 5 are inclined at substantially 45 (see FIG. 7) relative to the axis a-a of the plate, which lies in the horizontal plane A-A passing through the center of the ridge 9a and of the opening 8a, whereby the mixture will be distributed homogeneously within the chamber 7 and a vortex will be formed in said chamber.
  • the plate may have more than two passages 6, for example four.
  • the ridge 9a of blade 9 is located at a distance, preferably adjustable by means of a thumb screw 12, from the opening of the nozzle 8.
  • a pin 15 on a shaft 16 and connected to the body member 11 permits, when the screw 12 is turned, to move the body member 11 along guide rods 11a to adjust the distance of the blade ridge from the nozzle opening (for resonance of the vibrating system).
  • the jet issuing from the nozzle opening 8a impinges upon the ridge 9a of the blade 9 (see FIG. 6) and is dispersed in the mass filling the space 13, while assuring a perfect emulsion and at the same time the appearance of mechanical vibrations in the fluid mass, the blade 9 vibrating at great frequency within the said mass.
  • the entire emulsified mixture is thereafter directed toward the injector by a conduit 14, without recirculation, in the passages 1 and 2.
  • water and fuel oil arrive in a common conduit or pipe 120, the thin blade 9 being horizontal and substantially at the right of conduit 14a connected to the burner injector.
  • the opening 8a is formed in a plate 8b secured to the nozzle 8 by screws 8c (FIGS. 3 and 5).
  • the unit comprises assemblies 31, 32 and 33 providing respectively fuel oil, water and premixture circuits and integral with a parallelepipedic member 300 that is preferably of square cross section (see FIG. 8).
  • water supply conduit 122 is provided with supply adjusting means, such as a valve 17. When this valve is opened (by releasing button 17a), the water flows through passages 1220, 122b and becomes mixed, in passage 123 connected toa pump (not shown), with the fuel oil flowing from conduit 121.
  • This mixture is directed, through conduit a and a conduit (not shown), to the previously described emulsifying system.
  • the corresponding water supply is thus adapted to the highest heating rate.
  • the valve 17 When the valve 17 is closed, the water supply flows into the passage 122a only, whereby the feed unit is adapted for a lower heating rate.
  • the emulsion may thus remain a fixed composition.
  • filters 130, 131, 132 of fritted bronze for example, are interposed in the premixture, fuel oil and water circuits, respectively, so as to retain impurities and prevent damage to the parts, particularly the injection opening.
  • the unit according to the invention may be readily adapted to different supplies by merely changing the plate 5, the injection nozzle 8 or the plate 8d and blade 9. Moreover, the small external dimensions (parallelepiped) make it a compact system, occupying little space and easy to handle.
  • a. Plate l4 mm diameter. The plate has two cylindrical passages each 0.5 mm in diameter.
  • Injection nozzle 10 mm depth.
  • Injection opening 2 mm high, 0.08 mm wide.
  • the unit of the present invention may be used for all types of fuel, the absence of recirculation allowing for counteracting the instability of the emulsifying time for certain fuels. It also reduces considerably the amount of unbumt fuel and the formation of soot, thereby increasing the combustion efficiency and contributing to lessening air pollution.
  • a feed unit for fuel burners for the supply of an emulsion of a liquid in a liquid hydrocarbon to a burner, said unit comprising a. a casing,
  • a mixing chamber into which a premixture of liquid hydrocarbon and emulsifying liquid is conducted from the premixing chamber by the passages in said plate,
  • a vibratory member located opposite said injection opening in the path of a jet of premixture issuing from said opening, for emulsifying the premixture.
  • a feed unit as defined in claim I wherein the passages in said plate converge in a downstream direction at an angle of substantially 45 to a plane perpendicular to the plate.
  • each of said plate, injection nozzle and vibratory blade is calibrated to a particular flow of liquid hydrocarbon, whereby each may be replaced by one of different calibration to provide the desired flow.
  • a feed unit as claimed in claim 1 further comprising means to produce a vortex stream of the premixture in said nozzle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Spray-Type Burners (AREA)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
US889623A 1968-12-31 1969-12-31 Feed unit for a fuel burner Expired - Lifetime US3658302A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR182516 1968-12-31

Publications (1)

Publication Number Publication Date
US3658302A true US3658302A (en) 1972-04-25

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ID=8659648

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Application Number Title Priority Date Filing Date
US889623A Expired - Lifetime US3658302A (en) 1968-12-31 1969-12-31 Feed unit for a fuel burner

Country Status (11)

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US (1) US3658302A (xx)
AT (1) AT297901B (xx)
BE (1) BE743866A (xx)
CH (1) CH516768A (xx)
ES (1) ES375101A1 (xx)
FR (1) FR1600187A (xx)
GB (1) GB1266799A (xx)
LU (1) LU60114A1 (xx)
NL (1) NL6919578A (xx)
SE (1) SE351026B (xx)
ZA (1) ZA698987B (xx)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809372A (en) * 1971-09-03 1974-05-07 Co Fr De Raffinage Devices for the generation of ultrasonics and their application to the preparation of emulsions
US3883121A (en) * 1972-09-06 1975-05-13 Secmer La Tronche Sa Process for mixing two or more liquid or pastry products under high pressure and mixing head therefor
US3936036A (en) * 1973-09-14 1976-02-03 Demag Kunststofftechnik Gmbh Mixing device
USRE29161E (en) * 1971-09-03 1977-03-29 Compagnie Francaise De Raffinage Devices for the generation of ultrasonics and their application to the preparation of emulsions
US4048963A (en) * 1974-07-18 1977-09-20 Eric Charles Cottell Combustion method comprising burning an intimate emulsion of fuel and water
US4202364A (en) * 1978-11-29 1980-05-13 Karr Graydon L Method for separating fluids by means of pressure differential
US4293230A (en) * 1978-04-12 1981-10-06 Tan Lu J Apparatus for providing fuel for an oil burner
US4306816A (en) * 1980-04-04 1981-12-22 Folland Corporation Barodynamic resonator
US5000757A (en) * 1987-07-28 1991-03-19 British Petroleum Company P.L.C. Preparation and combustion of fuel oil emulsions
WO1995033023A1 (en) * 1994-05-31 1995-12-07 Fuel Tech, N.V. The reduction of nitrogen oxides emissions from vehicular diesel engines
US5520736A (en) * 1995-01-18 1996-05-28 Plastic Flamecoat Systems, Inc. Vent block for flame spray coating system
US6589301B1 (en) * 1998-12-08 2003-07-08 Elf Antar France Method for preparing an emulsified fuel and implementing device
US20030131526A1 (en) * 2001-04-27 2003-07-17 Colt Engineering Corporation Method for converting heavy oil residuum to a useful fuel
US20040124268A1 (en) * 2002-12-30 2004-07-01 Keith Frazier Spray gun with internal mixing structure
US20060243448A1 (en) * 2005-04-28 2006-11-02 Steve Kresnyak Flue gas injection for heavy oil recovery
US20070215350A1 (en) * 2006-02-07 2007-09-20 Diamond Qc Technologies Inc. Carbon dioxide enriched flue gas injection for hydrocarbon recovery
US20080148626A1 (en) * 2006-12-20 2008-06-26 Diamond Qc Technologies Inc. Multiple polydispersed fuel emulsion
US20090003123A1 (en) * 2007-06-28 2009-01-01 Morrison Jr Lowen Robert Apparatus and method for mixing by producing shear and/or cavitation, and components for apparatus
US20100043277A1 (en) * 2006-12-18 2010-02-25 Diamond Qc Technologies Inc. Polydispersed composite emulsions
US7818969B1 (en) 2009-12-18 2010-10-26 Energyield, Llc Enhanced efficiency turbine
US20150124552A1 (en) * 2013-11-04 2015-05-07 Yang Shi System and method for mixing a gas and a liquid
CN106164589A (zh) * 2014-06-24 2016-11-23 深井利春 乳液燃料供给装置及其供给方法
WO2018219888A1 (de) * 2017-05-31 2018-12-06 Bosch Termotecnologia S.A. Mischvorrichtung

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4118797A (en) * 1977-10-25 1978-10-03 Energy And Minerals Research Co. Ultrasonic emulsifier and method
GB2145167B (en) * 1983-08-20 1987-07-08 David White Linear motion bearing arrangements

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1826776A (en) * 1928-07-20 1931-10-13 Charles O Gunther Liquid fuel burner and method of atomizing liquids
US2289494A (en) * 1940-04-16 1942-07-14 Frederick V Hadley Vaporizer
US2358386A (en) * 1944-01-10 1944-09-19 Elmer J Doll Fluid fuel burner
US2461580A (en) * 1944-01-28 1949-02-15 Sol B Wiczer Method and apparatus for emulsifying fuels
US2657021A (en) * 1951-02-22 1953-10-27 Eric C Cottell Apparatus for the mechanical production of acoustic vibrations for use in emulsification, dispersion or like processes
US2713998A (en) * 1953-05-18 1955-07-26 Eicken Henri Means for emulsifying sizing and the like products
US3169013A (en) * 1963-01-14 1965-02-09 John P B Jones Sonic emulsifying and homogenization apparatus
US3176964A (en) * 1961-01-05 1965-04-06 Sonic Eng Corp Method and apparatus for producing acoustic vibrations in fluids

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1826776A (en) * 1928-07-20 1931-10-13 Charles O Gunther Liquid fuel burner and method of atomizing liquids
US2289494A (en) * 1940-04-16 1942-07-14 Frederick V Hadley Vaporizer
US2358386A (en) * 1944-01-10 1944-09-19 Elmer J Doll Fluid fuel burner
US2461580A (en) * 1944-01-28 1949-02-15 Sol B Wiczer Method and apparatus for emulsifying fuels
US2657021A (en) * 1951-02-22 1953-10-27 Eric C Cottell Apparatus for the mechanical production of acoustic vibrations for use in emulsification, dispersion or like processes
US2713998A (en) * 1953-05-18 1955-07-26 Eicken Henri Means for emulsifying sizing and the like products
US3176964A (en) * 1961-01-05 1965-04-06 Sonic Eng Corp Method and apparatus for producing acoustic vibrations in fluids
US3169013A (en) * 1963-01-14 1965-02-09 John P B Jones Sonic emulsifying and homogenization apparatus

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809372A (en) * 1971-09-03 1974-05-07 Co Fr De Raffinage Devices for the generation of ultrasonics and their application to the preparation of emulsions
USRE29161E (en) * 1971-09-03 1977-03-29 Compagnie Francaise De Raffinage Devices for the generation of ultrasonics and their application to the preparation of emulsions
US3883121A (en) * 1972-09-06 1975-05-13 Secmer La Tronche Sa Process for mixing two or more liquid or pastry products under high pressure and mixing head therefor
US3936036A (en) * 1973-09-14 1976-02-03 Demag Kunststofftechnik Gmbh Mixing device
US4048963A (en) * 1974-07-18 1977-09-20 Eric Charles Cottell Combustion method comprising burning an intimate emulsion of fuel and water
US4293230A (en) * 1978-04-12 1981-10-06 Tan Lu J Apparatus for providing fuel for an oil burner
US4202364A (en) * 1978-11-29 1980-05-13 Karr Graydon L Method for separating fluids by means of pressure differential
US4306816A (en) * 1980-04-04 1981-12-22 Folland Corporation Barodynamic resonator
US5000757A (en) * 1987-07-28 1991-03-19 British Petroleum Company P.L.C. Preparation and combustion of fuel oil emulsions
US5584894A (en) * 1992-07-22 1996-12-17 Platinum Plus, Inc. Reduction of nitrogen oxides emissions from vehicular diesel engines
WO1995033023A1 (en) * 1994-05-31 1995-12-07 Fuel Tech, N.V. The reduction of nitrogen oxides emissions from vehicular diesel engines
US5520736A (en) * 1995-01-18 1996-05-28 Plastic Flamecoat Systems, Inc. Vent block for flame spray coating system
US6589301B1 (en) * 1998-12-08 2003-07-08 Elf Antar France Method for preparing an emulsified fuel and implementing device
US7279017B2 (en) 2001-04-27 2007-10-09 Colt Engineering Corporation Method for converting heavy oil residuum to a useful fuel
US20030131526A1 (en) * 2001-04-27 2003-07-17 Colt Engineering Corporation Method for converting heavy oil residuum to a useful fuel
US20040124268A1 (en) * 2002-12-30 2004-07-01 Keith Frazier Spray gun with internal mixing structure
US6811096B2 (en) * 2002-12-30 2004-11-02 Aqua Glass Corporation Spray gun with internal mixing structure
US20060243448A1 (en) * 2005-04-28 2006-11-02 Steve Kresnyak Flue gas injection for heavy oil recovery
US7341102B2 (en) 2005-04-28 2008-03-11 Diamond Qc Technologies Inc. Flue gas injection for heavy oil recovery
US20070215350A1 (en) * 2006-02-07 2007-09-20 Diamond Qc Technologies Inc. Carbon dioxide enriched flue gas injection for hydrocarbon recovery
US7770640B2 (en) 2006-02-07 2010-08-10 Diamond Qc Technologies Inc. Carbon dioxide enriched flue gas injection for hydrocarbon recovery
US20100043277A1 (en) * 2006-12-18 2010-02-25 Diamond Qc Technologies Inc. Polydispersed composite emulsions
US20080148626A1 (en) * 2006-12-20 2008-06-26 Diamond Qc Technologies Inc. Multiple polydispersed fuel emulsion
US20090003123A1 (en) * 2007-06-28 2009-01-01 Morrison Jr Lowen Robert Apparatus and method for mixing by producing shear and/or cavitation, and components for apparatus
US8517595B2 (en) * 2007-06-28 2013-08-27 The Procter & Gamble Company Apparatus and method for mixing by producing shear and/or cavitation, and components for apparatus
US7818969B1 (en) 2009-12-18 2010-10-26 Energyield, Llc Enhanced efficiency turbine
US9059440B2 (en) 2009-12-18 2015-06-16 Energyield Llc Enhanced efficiency turbine
US20150124552A1 (en) * 2013-11-04 2015-05-07 Yang Shi System and method for mixing a gas and a liquid
CN106164589A (zh) * 2014-06-24 2016-11-23 深井利春 乳液燃料供给装置及其供给方法
WO2018219888A1 (de) * 2017-05-31 2018-12-06 Bosch Termotecnologia S.A. Mischvorrichtung

Also Published As

Publication number Publication date
DE1964582A1 (de) 1970-07-09
AT297901B (de) 1972-04-10
ZA698987B (en) 1971-06-30
GB1266799A (xx) 1972-03-15
CH516768A (fr) 1971-12-15
FR1600187A (xx) 1970-07-20
ES375101A1 (es) 1972-03-16
LU60114A1 (xx) 1970-03-02
DE1964582B2 (de) 1972-11-23
NL6919578A (xx) 1970-07-02
BE743866A (xx) 1970-06-30
SE351026B (xx) 1972-11-13

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