US3285319A - Ignitor burner of dual fuel flow design utilizing an eddy plate - Google Patents

Ignitor burner of dual fuel flow design utilizing an eddy plate Download PDF

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Publication number
US3285319A
US3285319A US334512A US33451263A US3285319A US 3285319 A US3285319 A US 3285319A US 334512 A US334512 A US 334512A US 33451263 A US33451263 A US 33451263A US 3285319 A US3285319 A US 3285319A
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US
United States
Prior art keywords
pipe
flame
fuel
eddy plate
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.)
Expired - Lifetime
Application number
US334512A
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English (en)
Inventor
Hartline R Acton
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.)
Combustion Engineering Inc
Original Assignee
Combustion Engineering Inc
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 Combustion Engineering Inc filed Critical Combustion Engineering Inc
Priority to US334512A priority Critical patent/US3285319A/en
Priority to GB47252/64A priority patent/GB1030076A/en
Priority to BE656247A priority patent/BE656247A/xx
Priority to NL6414043A priority patent/NL6414043A/xx
Priority to ES0307375A priority patent/ES307375A1/es
Application granted granted Critical
Publication of US3285319A publication Critical patent/US3285319A/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
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • F23C5/08—Disposition of burners
    • F23C5/32—Disposition of burners to obtain rotating flames, i.e. flames moving helically or spirally
    • 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
    • F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
    • F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
    • 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
    • F23D14/46—Details
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/725—Protection against flame failure by using flame detection devices
    • 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
    • F23D14/46—Details
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/74—Preventing flame lift-off
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2239/00—Fuels
    • F23N2239/06—Liquid fuels

Definitions

  • FIGURE 1 is a cross sectional plan view of a furnace incorporating the novel burner arrangement
  • FIGURE 2 is an enlarged cross sectional view of the ignitor burner taken on line 2-2 of FIG. 1;
  • FIGURE 3 is a view of a portion of the ignitor burner taken on line 33 of FIG. 2;
  • FIGURE 4 is a sectional view of the burner tip shown in FIGURE 2.
  • numeral 8 designates the furnace of a steam generator, all four walls 10 of which are lined with steam generating tubes 12.
  • a main burner 14 mounted in each corner of the furnace 8 is a main burner 14, to which fuel and air are supplied.
  • each main burner 14 has an associated ignitor or pilot burner 16.
  • ignitor burners are utilized in establishing flame at the main burners when initially starting up the unit and also for stabilizing the main burner flame, when the steam generator is operating at low l-oads( when minimum amounts of fuel are being fired in the main burners).
  • FIGURES 2 and 3 are enlarged views of the ignitor burner shown in FIGURE 1.
  • Each burner 16 has an outer housing or pipe 18 which is supplied with air through duct 19.
  • ipe 18 Positioned within ipe 18 are a pair of concentric fuel pipes 20 and 22 which are supplied with gas.
  • eddy plate 26 Positioned within housing or pipe 18 is an eddy plate 26. As best seen in FIG. 2, a restricted opening is thus formed between the periphery of the eddy plate 26 and the inner wall of pipe 18, through which all of the air flows past the eddy plate in a hollow cylindrical shape or pattern. Because of the restricted annular space between the eddy plate and pipe 18, eddy currents of air are formed, as shown in FIG. 2, which brings a small amount of air back adjacent to the downstream face of the eddy plate. This air mixes with the gas issuing from openings 28, which are positioned equidistantly around the periphery of pipe 20. The combustible mixture is ignited by spark plug 36. Since this flame is protected from the high velocity air flow by eddy plate 26, it is a very stable flame, regardless of how much fuel and air is being supplied to the burner.
  • Fuel pipe 20 also has a plurality of openings 30 at its end, as best seen in FIGURES 3 and 4.
  • Inner pipe 22 also has a plurality of openings 32.
  • a number of openings 34 are formed in fuel pipe 20 approximately midway between openings 28 and 30.
  • the fuel flowing through these openings prevents :a flame void from being created between openings 28, and 30, 32.
  • a continuous, uninterrupted flame is maintained which extends from the eddy plate to the openings 30, 32.
  • the size of the openings 34 can be smaller than openings 28 and 30 since only a relatively small amount of flame is needed at this point to insure a continuous flame reaching to openings 30 and 32.
  • pipes 20 and 22 are provided with control valves 38 and 40, respectively.
  • control valves 38 and 40 can be either manually or automatically controlled, as desired.
  • Apparatus 46 is a flame detector, which indicates whether or not a flame is present in the ignitor burner.
  • the pressures existing at a point adjacent eddy plate 26 and a point further downstream thereof, are transmitted to opposite sides of diaphragm 48 by means of pressure taps 44 and 42. The pressure differential between these points is greater when a flame exists than when no flame exists.
  • a stem containing a switch thereon is attached to the diaphragm 48. This switch can be so positioned that it energizes the electrical circuit 52 when a flame exists, thus actuating an indicating light 54 and/or a value 56.
  • legs 58 support the eddy plate 26 and associated fuel pipes, thus maintaining proper position of the eddy plate with respect to pipe 18.
  • the eddy plate is positioned back a few feet from the furnace interior, so that the spark plug 36 is not detrimentally affected by heat radiation from the furnace.
  • a first. pipe having an inlet end, to which a combustion supporting medium is supplied and an outlet end for discharging products of combustion, an eddy plate positioned within said first pipe, there being a restricted annular space between said eddy plate and the first pipe, a second pipe, to which fuel is supplied, positioned within said first pipe and extending through the eddy plate, said second pipe having an outlet positioned within said first pipe downstream of and adjacent to said eddy plate, ignition means positioned downstream of said eddy plate for igniting the fuel and combustion supporting medium adjacent the eddy plate, a third pipe, to which fuel is supplied, positioned within said second pipe, said third pipe having an outlet downstream of the outlet of said second pipe, whereby a portion of the combustion supporting medium combines with the fuel being emitted through the outlet of the second pipe to establish a stable flame, and the remaining portion of the combustion supporting medium combines with the fuel being emitted through the outlet of the third pipe, the flame
  • a first pipe having an inlet end to which air is supplied and an outlet end for discharging products of combustion, an eddy plate positioned Within said first pipe in such a manner that there is a restricted annular space between said eddy plate and the first pipe, a second pipe to which fuel is supplied positioned within said first pipe and extending through the eddy plate, said second pipe having a first outlet positioned within said first pipe downstream of and adjacent to said eddy plate, a third pipe to which fuel is supplied, positioned within said second pipe, said third pipe having an outlet downstream of the first outlet of said second pipe, said second pipe having a second outlet intermediate the first outlet of the second pipe and the outlet of the third pipe, the air to support combustion of all of the fuel being supplied through the first pipe, whereby a very stable flame is established in the ignitor burner, including first valve means positioned in the second pipe and second valve means positioned in said third pipe, whereby the amount of fuel supplied to said second and third pipes can be separately

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
US334512A 1963-12-30 1963-12-30 Ignitor burner of dual fuel flow design utilizing an eddy plate Expired - Lifetime US3285319A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US334512A US3285319A (en) 1963-12-30 1963-12-30 Ignitor burner of dual fuel flow design utilizing an eddy plate
GB47252/64A GB1030076A (en) 1963-12-30 1964-11-19 Pilot burner
BE656247A BE656247A (cs) 1963-12-30 1964-11-25
NL6414043A NL6414043A (cs) 1963-12-30 1964-12-03
ES0307375A ES307375A1 (es) 1963-12-30 1964-12-21 Un dispositivo quemador encendedor.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US334512A US3285319A (en) 1963-12-30 1963-12-30 Ignitor burner of dual fuel flow design utilizing an eddy plate

Publications (1)

Publication Number Publication Date
US3285319A true US3285319A (en) 1966-11-15

Family

ID=23307564

Family Applications (1)

Application Number Title Priority Date Filing Date
US334512A Expired - Lifetime US3285319A (en) 1963-12-30 1963-12-30 Ignitor burner of dual fuel flow design utilizing an eddy plate

Country Status (5)

Country Link
US (1) US3285319A (cs)
BE (1) BE656247A (cs)
ES (1) ES307375A1 (cs)
GB (1) GB1030076A (cs)
NL (1) NL6414043A (cs)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4494923A (en) * 1982-08-25 1985-01-22 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Oxy-fuel burners
EP0654637A1 (de) * 1993-11-19 1995-05-24 GIERSCH GmbH Gasbrenner
EP0656509A4 (en) * 1993-05-21 1996-11-04 Tatarskoe Proizv Ob Energetiki DEVICE FOR REGULATING A FLAME.
US7766006B1 (en) * 2007-03-09 2010-08-03 Coprecitec, S.L. Dual fuel vent free gas heater
ITPD20100132A1 (it) * 2010-04-28 2011-10-29 Sit La Precisa S P A Con Socio Uni Co Analizzatore d atmosfera a fiamma perfezionato
US20130095437A1 (en) * 2011-04-05 2013-04-18 Air Products And Chemicals, Inc. Oxy-Fuel Furnace and Method of Heating Material in an Oxy-Fuel Furnace
US20140038115A1 (en) * 2011-11-14 2014-02-06 Fei Chen Dense/Dilute Pulverized Coal Separator Structure of Single-fireball Octagonal Direct-flow Burner
EP2781834A4 (en) * 2011-11-16 2015-06-03 Mitsubishi Heavy Ind Ltd OIL-DRIVEN BURNER, BURNER UNIT DRIVEN BY SOLID FUEL AND BOILER DRIVEN BY SOLID FUEL

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113154466B (zh) * 2021-05-21 2025-04-08 台州市椒江嘉科净化设备有限公司 一种燃烧炉及控制方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1966054A (en) * 1928-11-21 1934-07-10 Jr Alfred J Wheeler Method of combustion
US3117619A (en) * 1964-01-14 Ignitor for fuel burner
US3123027A (en) * 1964-03-03 Apparatus and method of flame or combustion rate

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3117619A (en) * 1964-01-14 Ignitor for fuel burner
US3123027A (en) * 1964-03-03 Apparatus and method of flame or combustion rate
US1966054A (en) * 1928-11-21 1934-07-10 Jr Alfred J Wheeler Method of combustion

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4494923A (en) * 1982-08-25 1985-01-22 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Oxy-fuel burners
EP0656509A4 (en) * 1993-05-21 1996-11-04 Tatarskoe Proizv Ob Energetiki DEVICE FOR REGULATING A FLAME.
EP0654637A1 (de) * 1993-11-19 1995-05-24 GIERSCH GmbH Gasbrenner
US7766006B1 (en) * 2007-03-09 2010-08-03 Coprecitec, S.L. Dual fuel vent free gas heater
ITPD20100132A1 (it) * 2010-04-28 2011-10-29 Sit La Precisa S P A Con Socio Uni Co Analizzatore d atmosfera a fiamma perfezionato
WO2011134725A3 (en) * 2010-04-28 2011-12-29 Sit La Precisa S.P.A. Con Socio Unico An improved flame atmosphere analyser
US20130095437A1 (en) * 2011-04-05 2013-04-18 Air Products And Chemicals, Inc. Oxy-Fuel Furnace and Method of Heating Material in an Oxy-Fuel Furnace
US20140038115A1 (en) * 2011-11-14 2014-02-06 Fei Chen Dense/Dilute Pulverized Coal Separator Structure of Single-fireball Octagonal Direct-flow Burner
EP2781834A4 (en) * 2011-11-16 2015-06-03 Mitsubishi Heavy Ind Ltd OIL-DRIVEN BURNER, BURNER UNIT DRIVEN BY SOLID FUEL AND BOILER DRIVEN BY SOLID FUEL
US9702545B2 (en) 2011-11-16 2017-07-11 Mitsubishi Heavy Industries, Ltd. Oil-fired burner, solid fuel-fired burner unit, and solid fuel-fired boiler

Also Published As

Publication number Publication date
GB1030076A (en) 1966-05-18
ES307375A1 (es) 1965-05-01
NL6414043A (cs) 1965-07-01
BE656247A (cs) 1965-05-25

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