US3837784A - Method for operating modulated burners actuated by an emulsion - Google Patents

Method for operating modulated burners actuated by an emulsion Download PDF

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Publication number
US3837784A
US3837784A US00359871A US35987173A US3837784A US 3837784 A US3837784 A US 3837784A US 00359871 A US00359871 A US 00359871A US 35987173 A US35987173 A US 35987173A US 3837784 A US3837784 A US 3837784A
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US
United States
Prior art keywords
burner
electro
valve
emulsion
liquid fuel
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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
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US00359871A
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English (en)
Inventor
C Delatronchette
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Elf Antar France
Elf Union
Original Assignee
Elf Union
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Publication date
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Publication of US3837784A publication Critical patent/US3837784A/en
Assigned to ELF FRANCE reassignment ELF FRANCE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: DE LA TOUR, JACQUES, FOR ELF UNION IN LIQUIDATION
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
    • 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
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F23K5/02—Liquid fuel
    • F23K5/04—Feeding or distributing systems using pumps
    • 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
    • F23K5/14—Details thereof
    • F23K5/18—Cleaning or purging devices, e.g. filters

Definitions

  • the present invention relates to a method for operating modulated burners actuated by an emulsion of light or heavy liquid fuel, such as used for heating furnaces, boilers or similar devices.
  • another known method provides sending back the emulsion to the fuel tank, once the burner has been stopped, and eliminating any risk of corrosion or decantation in the burner when the stoppage of heating is protracted.
  • the amount of emulsion contained in the conduits and burners is entirely spent until extinction.
  • a pre-steam exclusively formed of fuel is admitted into the burner injector, and, after a certain period of time the water circuit is opened in order to provide a gapless feed of liquid fuel and water emulsion; the interruption of the pre-stream of fuel coincides with the ignition of the burner which consumes, first the liquid fuel above, then the emulsion.
  • Some heating devices are provided with only one variable rate burner fed in a closed circuit.
  • the closed-circuit return of the emulsion to the fuel tank is not suitable for the return of the liquid fuel along during the pre-stream period and of the emulsion during normal operation.
  • the present invention aims, in particular, at obviating the above-mentioned drawbacks of known methods.
  • the present invention relates to a method for operating modulated burners actuated by an emulsion and using a pre-stream exclusively formed of fuel before the re-ignition of the burner following an interruption of the normal heating, the amount of liquid fuel and water emulsion remaining in the conduits having been fully spent during the previous burner extinction, the interruption of said pre-stream coinciding with the ignition of the burner which consumes, first the liquid fuel above, then, after a given period of time, the liquid fuel and water emulsions provided by a mixer which is fed with liquid fuel, on the one hand, and with water, on the other hand, said method comprising:
  • the above pre-stream is intended to eliminate the liquid fuel which cooled down in the burner conduits during the periods of extinction.
  • opening the second electro-valve before the pre-stream has been caused to stop it is possible to fill the conduits between the burner and the mixer with emulsion, and to leave but a small amount constituted by liquid fuel exclusively in the burner nozzles, with a view to providing a perfect ignition.
  • a programming-unit is used for controlling said electro-valves separately.
  • the information provided by a thermostat of the boiler are used for controlling the modulating regulator.
  • numeral 1 designates a modulating burner, fed by a low-pressure feed circuit 9 of known type, which comprises a pump 10 adapted to draw liquid fuel from a tank 4. Said liquid fuel is sucked by a high-pressure pump 3 through a re-heater 8 a oneway valve 11 and mixer 2, and it is directed to burner ll, through a conduit 1a.
  • Electro-valve 7 is normally kept closed.
  • the other of said two circuits for the return of the normal flow of the liquid fuel and water emulsion to burner 1, goes through electro-valve 7 which is open (electro-valve 6 being closed), mixer 2 and conduit 1a.
  • burner l was emptied (pre-sweeping) of its liquid fuel and water emulsion during a previous extinction of the burner (third step).
  • the second operating step corresponds to the normal flow of liquid fuel and water.
  • That second step overlaps the first one for a few seconds. It starts with the opening of electro-valve 15 of the water circuit, in order to obtain an emulsion in mixer 2.
  • the first operating step is brought to a stop by the closing of electro-valve 6 and the opening of electro-valve 7.
  • the burner ignition occurs during the overlapping period the two steps, with a view to burning a very small amount formed of liquid fuel exclusively (perfect ignition), immediately followed by the liquid fuel and water emulsion.
  • Regulator 5 modulates the emulsion amount in burner 1 according to the boiler temperature indications.
  • durations of the pre-stream (first step) and of the overlapping period (second step) can be programmated by means of devices known per se, which in fact are not within the scope of the present invention.
  • the third operating step corresponds to the extinction of burner 1; said third step can be controlled either by a thermostat or by regulator 5. It is started by the closing of electro-valve and lasts until all the emulsion contained in burner 1 has been spent.
  • electro-valve 7 is caused to close and electro-valve 6 to open.
  • the above disclosed method according to the invention can be applied to all cases dealing with the feeding and modulating burners using liquid fuel.
  • said method comprising:

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  • 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)
US00359871A 1972-05-16 1973-05-14 Method for operating modulated burners actuated by an emulsion Expired - Lifetime US3837784A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7217500A FR2184427B1 (da) 1972-05-16 1972-05-16

Publications (1)

Publication Number Publication Date
US3837784A true US3837784A (en) 1974-09-24

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ID=9098599

Family Applications (1)

Application Number Title Priority Date Filing Date
US00359871A Expired - Lifetime US3837784A (en) 1972-05-16 1973-05-14 Method for operating modulated burners actuated by an emulsion

Country Status (16)

Country Link
US (1) US3837784A (da)
JP (1) JPS4985629A (da)
AR (1) AR197227A1 (da)
BE (1) BE799472A (da)
BR (1) BR7303594D0 (da)
CA (1) CA1001060A (da)
CH (1) CH571193A5 (da)
DE (1) DE2324800A1 (da)
ES (1) ES414782A1 (da)
FR (1) FR2184427B1 (da)
HU (1) HU166850B (da)
IT (1) IT986322B (da)
LU (1) LU67592A1 (da)
NL (1) NL7306722A (da)
RO (1) RO71650A (da)
ZA (1) ZA733260B (da)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063871A (en) * 1975-07-22 1977-12-20 Societe Anonyme Automobiles Citroen Boiler burners
US4110973A (en) * 1977-01-24 1978-09-05 Energy Services Inc. Water injection system for industrial gas turbine engine
EP0009520A1 (en) * 1978-08-09 1980-04-16 R.E. Folland Consultants Inc. Emulsifying system and method for mixing accurate quantities of two or more liquids
US4466815A (en) * 1982-05-03 1984-08-21 Wahlco International Inc. Gas conditioning apparatus
FR2600755A1 (fr) * 1986-06-26 1987-12-31 Pivernat Thierry Systeme d'alimentation des bruleurs fonctionnant a emulsion fuel-eau
EP0848149A3 (de) * 1996-12-13 1999-11-24 Asea Brown Boveri AG Verfahren zur spontanen Leistungserhöhung beim Betrieb einer Kraftwerksanlage
WO2004109186A1 (de) * 2003-06-11 2004-12-16 Kraemer Thomas Verfahren und vorrichtung zur reduzierung des öldurchsatzes eines heizkessel- ölbrenners
FR2858392A1 (fr) * 2003-07-28 2005-02-04 Pierre Marie Louis Boussange Installation d'alimentation en combustible d'une chaudiere a bruleur fioul participante d'une installation de chauffage et d'alimentation en eau chaude de locaux
US20070099135A1 (en) * 2005-11-01 2007-05-03 Frank Schubach Waste oil heater system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5711143Y2 (da) * 1978-03-10 1982-03-04
JPS58211833A (ja) * 1982-06-01 1983-12-09 Nissei Kk 有孔性物体の含浸方法及び装置

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2033010A (en) * 1930-02-04 1936-03-03 Gas Fuel Corp Process of burning emulsified compounds
US2104311A (en) * 1932-08-23 1938-01-04 Gas Fuel Corp Process for creating high temperatures
US2702590A (en) * 1949-09-08 1955-02-22 Eloise B Stillman Liquid fuel circulating system for mechanically atomizing liquid fuel burner and method of controlling the output of said burner
US2818110A (en) * 1955-03-24 1957-12-31 Cleaver Brooks Co Oil burner purge method and system
US3212555A (en) * 1964-12-28 1965-10-19 Combustion Eng Automatic gun integrity checking system
US3358735A (en) * 1966-08-25 1967-12-19 Sun Ray Burner Mfg Corp Fuel burner control system
US3383049A (en) * 1965-10-11 1968-05-14 Robert E. Guerin Means of combating atmospheric pollution and a corresponding burner
US3533717A (en) * 1967-07-04 1970-10-13 Robert Edmond Guerin Emulsifier burner for hydrocarbons and water with mechanical spraying a controlled flame and having an anti-atmospheric pollution effect
US3741712A (en) * 1971-12-01 1973-06-26 Elf Union Supply system for a light hyrocarbon-water emulsion burner
US3766942A (en) * 1970-06-02 1973-10-23 Elf Union And Ateliers Des Cha System for supplying an emulsion of liquid fuel and water to a heating burner

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2033010A (en) * 1930-02-04 1936-03-03 Gas Fuel Corp Process of burning emulsified compounds
US2104311A (en) * 1932-08-23 1938-01-04 Gas Fuel Corp Process for creating high temperatures
US2702590A (en) * 1949-09-08 1955-02-22 Eloise B Stillman Liquid fuel circulating system for mechanically atomizing liquid fuel burner and method of controlling the output of said burner
US2818110A (en) * 1955-03-24 1957-12-31 Cleaver Brooks Co Oil burner purge method and system
US3212555A (en) * 1964-12-28 1965-10-19 Combustion Eng Automatic gun integrity checking system
US3383049A (en) * 1965-10-11 1968-05-14 Robert E. Guerin Means of combating atmospheric pollution and a corresponding burner
US3358735A (en) * 1966-08-25 1967-12-19 Sun Ray Burner Mfg Corp Fuel burner control system
US3533717A (en) * 1967-07-04 1970-10-13 Robert Edmond Guerin Emulsifier burner for hydrocarbons and water with mechanical spraying a controlled flame and having an anti-atmospheric pollution effect
US3766942A (en) * 1970-06-02 1973-10-23 Elf Union And Ateliers Des Cha System for supplying an emulsion of liquid fuel and water to a heating burner
US3741712A (en) * 1971-12-01 1973-06-26 Elf Union Supply system for a light hyrocarbon-water emulsion burner

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063871A (en) * 1975-07-22 1977-12-20 Societe Anonyme Automobiles Citroen Boiler burners
US4110973A (en) * 1977-01-24 1978-09-05 Energy Services Inc. Water injection system for industrial gas turbine engine
EP0009520A1 (en) * 1978-08-09 1980-04-16 R.E. Folland Consultants Inc. Emulsifying system and method for mixing accurate quantities of two or more liquids
US4466815A (en) * 1982-05-03 1984-08-21 Wahlco International Inc. Gas conditioning apparatus
FR2600755A1 (fr) * 1986-06-26 1987-12-31 Pivernat Thierry Systeme d'alimentation des bruleurs fonctionnant a emulsion fuel-eau
EP0252864A1 (fr) * 1986-06-26 1988-01-13 Thierry Pibernat Système d'alimentation des brûleurs fonctionnant à émulsion fuel-eau
EP0848149A3 (de) * 1996-12-13 1999-11-24 Asea Brown Boveri AG Verfahren zur spontanen Leistungserhöhung beim Betrieb einer Kraftwerksanlage
WO2004109186A1 (de) * 2003-06-11 2004-12-16 Kraemer Thomas Verfahren und vorrichtung zur reduzierung des öldurchsatzes eines heizkessel- ölbrenners
FR2858392A1 (fr) * 2003-07-28 2005-02-04 Pierre Marie Louis Boussange Installation d'alimentation en combustible d'une chaudiere a bruleur fioul participante d'une installation de chauffage et d'alimentation en eau chaude de locaux
US20070099135A1 (en) * 2005-11-01 2007-05-03 Frank Schubach Waste oil heater system

Also Published As

Publication number Publication date
ZA733260B (en) 1974-04-24
NL7306722A (da) 1973-11-20
CH571193A5 (da) 1975-12-31
ES414782A1 (es) 1976-05-16
LU67592A1 (da) 1973-07-24
BR7303594D0 (pt) 1974-08-29
CA1001060A (en) 1976-12-07
HU166850B (da) 1975-06-28
RO71650A (fr) 1980-09-30
IT986322B (it) 1975-01-30
AR197227A1 (es) 1974-03-22
FR2184427B1 (da) 1979-08-17
FR2184427A1 (da) 1973-12-28
JPS4985629A (da) 1974-08-16
DE2324800A1 (de) 1973-11-29
BE799472A (fr) 1973-08-31

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ELF FRANCE, 137, RUE DE 1 UNIVERSITE-75007, PARIS,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:DE LA TOUR, JACQUES, FOR ELF UNION IN LIQUIDATION;REEL/FRAME:003836/0177

Effective date: 19800929