EP0158414B1 - Flachflamm-Strahlungsbrennermundstück - Google Patents

Flachflamm-Strahlungsbrennermundstück Download PDF

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Publication number
EP0158414B1
EP0158414B1 EP19850301042 EP85301042A EP0158414B1 EP 0158414 B1 EP0158414 B1 EP 0158414B1 EP 19850301042 EP19850301042 EP 19850301042 EP 85301042 A EP85301042 A EP 85301042A EP 0158414 B1 EP0158414 B1 EP 0158414B1
Authority
EP
European Patent Office
Prior art keywords
openings
burner
flow divider
downstream
burner pipe
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
Application number
EP19850301042
Other languages
English (en)
French (fr)
Other versions
EP0158414A3 (en
EP0158414A2 (de
Inventor
G. Richard Ogden
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.)
John Zink Co LLC
Original Assignee
John Zink Co
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 John Zink Co filed Critical John Zink Co
Publication of EP0158414A2 publication Critical patent/EP0158414A2/de
Publication of EP0158414A3 publication Critical patent/EP0158414A3/en
Application granted granted Critical
Publication of EP0158414B1 publication Critical patent/EP0158414B1/de
Expired 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
    • F23D14/12—Radiant burners
    • F23D14/125—Radiant burners heating a wall surface to incandescence
    • 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, e.g. noise reduction means
    • F23D14/48—Nozzles
    • F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
    • 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, e.g. noise reduction means
    • F23D14/84—Flame spreading or otherwise shaping

Definitions

  • the present invention concerns a burner which inspirates or educts air with gas to burn beyond openings at the end of a burner tube.
  • the invention is applicable to a burner that uses forced air or forced air and gas for burning outside openings at the end of a burner tube.
  • the outlet slots or openings must allow maximum emission of the gas-air mixture at sufficient velocity to prevent flashback into the burner tube.
  • the invention is for use with a variety of gas-air, or air-gas mixing burners.
  • the invention includes burners using forced air pre-mixed with gas or alone, such as found in U.S. Patent No. 4,257,762, the invention being directed to the division of fluid flow at the downstream tip.
  • the invention provides a gas burner assembly for furnaces according to claim 1.
  • a stream of high velocity fuel gas issues from an orifice to inspirate combustion supporting air into and mix with the air in a mixing section of a burner pipe.
  • the burner pipe is inserted into an oversized opening through the wall of the furnace terminating at a downstream end adjacent and beyond the inner wall of the furnace.
  • the inner wall of the furnace surrounding the furnace opening typically includes a radiant wall surface.
  • the downstream end of the burner pipe is closed.
  • a plurality of openings such as slots or holes are provided in the burner pipe adjacent the downstream end to project gas-air mixtures issuing therefrom, outwardly along the radiant furnace wall surface for burning.
  • a flow divider comprised of an undersized cylindrical member is centrally located permanently or temporarily inside the burner tube adjacent the downstream end.
  • the downstream end of the flow divider is oriented in close proximity to the inside periphery of the burner tube at said openings to effectively divide the openings into what is defined herein as a downstream flowing portion and an upstream flowing portion.
  • the cylindrical flow-divider causes that portion of the fuel-air mixture which passes through the inside of the flow divider to be directed through the downstream portion of the openings. The remaining portion of the fuel-air mixture which passes through the annular space located between the flow divider and the burner tube flows through the upstream portion of the openings.
  • the burner assembly of Figs. 1 and 2, generally designated by the numeral 10, is inserted through an opening 12 formed as a part of a burner block 14 located through a furnace wall 16.
  • the basic gas-air mixing burner assembly shown here is merely typical, as the invention is not to be limited to that type shown.
  • the burner assembly is supported by a mounting plate 18 as by welding or bolting to plates 20 and/or 22.
  • the mounting plate centrally supports a burner tube 30 and includes openings which may be regulated for the flow of secondary air as shown.
  • Centering lugs 32 are provided in the annular space between the burner tube and the mounting thimble or plate 20.
  • a conical shaped plug 42 typically closes the downstream end.
  • a plurality of spaced openings or slots 44 are provided around the circumference of the downstream end of the burner tube 30. These openings 44 project gas and air essentially outwardly for burning along the furnace wall and a tile surface 46 which is capable of providing additional radiant heat energy to the interior of the furnace as is known in the art.
  • the invention is particularly directed to a flow divider 50 which is provided in the interior of the burner tube, adjacent the downstream end.
  • the flow divider is comprised of a cylinder which includes outwardly projecting lugs or feet 52 which centralize the flow divider in the position shown. Other forms of centralizer means such as protrusions from the body of the cylinder and the like can be provided.
  • the flow divider can be permanently installed as by welding in a centralized position.
  • the downstream end of the flow divider is caused to be oriented in close proximity to the inside periphery of the burner tube at the openings, thus dividing the openings into a downstream flow 54 and an upstream flow 56.
  • a straight burner tube 60 is depicted having an end closure 62 and a plurality of slots 64 disposed inside the tip.
  • the flow divider 66 is disposed about the tip.
  • the flow divider 66 with its centralizing members 68 is shown.
  • the primary distinction is the use of a burner tube 70, which may be straight or curved as shown, having an end closure 72 and a plurality of holes 74 surrounding the tip.
  • the flow divider 76 with its centralizing members 78 is shown positioned with respect to that embodiment.
  • Figs. 5, 6 and 7 depict different forms of flow dividers, such as an angularly inclined member 84 dividing slots 82 of Fig. 5, a right angle divider 86 dividing slots 88 of Fig. 6 and a beveled flow divider 90 dividing slots 92 of Fig. 7.

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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)

Claims (4)

1. Gasbrenneranordnung für Oefen, bei der eine Vormischungs aus Brennstoff und angesaugter Verbrennungsluft axial durch ein Brennerrohr (30) strömt, das durch eine Wand (16) des Ofens mit einer Oeffnung (12) mit Uebermass ragt, wobei ein Ringraum für die Strömung von Sekundärluft gebildet wird, und wobei das vordere Ende des Brennerrohrs geschlossen ist und viele auf dem Umfang des Brennerrohres (30) in der Nähe des Vorderendes verteilte Oeffnungen (44) zum Ausstossen der genannten Vormischung derart eingerichtet sind, dass diese den Sekundärluftstrom durchdringt, damit eine Verbrennung entlang einer das Brennerrohr umgebenden strahlenden Ofenwand erfolgt, und bei der ein Strömungsteiler (50) für die Vormischung aus Brennstoff und Luft im Brennerrohr am Vorderende angebracht ist, dadurch gekennzeichnet, dass der Strömungsteiler (50) aus einem dünnwandigen Metallzylinder von bedeutend geringerer Länge als derjenigen des Brennerrohrs und mit einem geringeren Durchmesser des Strömungsteilers (50) als desjenigen des Brennerrohrs besteht, wodurch ein im wesentlichen ungeteilter Ringraum zwischen dem Zylinder des Strömungsteilers und dem Inneren des Brennerrohrs sowie ein ungeteilter innerer Zentralraum gebildet wird, wobei die Querschnittsfläche des Ringraumes kleiner ist als die Querschnittsfläche des Zentralraumes; dass der vordere Endbereich des Strömungsteilers (50) nach aussen derart erweitert ist, dass er am inneren Umfang des Brennerrohrs in der Höhe der Oeffnungen (44) derart anliegt, dass der Fluidstrom durch die Oeffnungen (44) in einen Vorstrom und einen Nachstrom unterteilt wird, wobei ein erster Teil des Fluidstrorris durch den inneren Zentralraum des Strömungsteilers (50) und dann durch den vorderen Bereich der Oeffnungen (44) nach aussen und der Rest des Fluidstroms ringförmig zwischen Strömungsteiler (50) und Brennerrohr (30) und dann durch den hinteren Bereich der Oeffnungen (44) strömt.
2. Brenner nach Anspruch 1, dadurch gekennzeichnet, dass der vordere, nach aussen erweiterte Bereich des Strömungsteiles im Bereich der Oeffnungen eine gekrümmte Oberfläche aufweist.
3. Brenner nach Anspruch 2, dadurch gekennzeichnet, dass der vordere, nach aussen erweiterte Bereich des Strömungsteiles im Bereich der Oeffnungen eine kegelig (84) oder schrägt zulaufend (92) geformte Fläche besitzt.
4. Brenner nach Anspruch 1, dadurch gekennzeichnet, dass der vordere, nach aussen erweiterte Bereich des Strömungsteilers (86) im Bereich der Oeffnungen annähernd senkrecht zu den Oeffnungen verläuft.
EP19850301042 1984-03-19 1985-02-18 Flachflamm-Strahlungsbrennermundstück Expired EP0158414B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US59201384A 1984-03-19 1984-03-19
US592013 1984-03-19

Publications (3)

Publication Number Publication Date
EP0158414A2 EP0158414A2 (de) 1985-10-16
EP0158414A3 EP0158414A3 (en) 1987-01-21
EP0158414B1 true EP0158414B1 (de) 1989-10-04

Family

ID=24368913

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850301042 Expired EP0158414B1 (de) 1984-03-19 1985-02-18 Flachflamm-Strahlungsbrennermundstück

Country Status (4)

Country Link
EP (1) EP0158414B1 (de)
JP (1) JPS60213715A (de)
CA (1) CA1243937A (de)
DE (1) DE3573463D1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3842842A1 (de) * 1988-12-20 1990-06-21 Zink John Gmbh Atmosphaerischer brenner
US5180302A (en) * 1992-02-28 1993-01-19 John Zink Company, A Division Of Koch Engineering Company, Inc. Radiant gas burner and method
DE10237604B4 (de) * 2002-08-16 2006-07-06 Eisenmann Maschinenbau Gmbh & Co. Kg Nachverbrennungseinrichtung mit einem Brenner
US7628609B2 (en) * 2006-12-29 2009-12-08 Electrolux Home Products, Inc. Hub and spoke burner with flame stability
ITMO20120293A1 (it) * 2012-11-27 2014-05-28 Alberto Benfenati Bruciatore

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1754603A (en) * 1928-05-28 1930-04-15 Charles J Brown Furnace gas burner
FR918652A (fr) * 1945-09-03 1947-02-14 Brûleur pour tous gaz combustibles
FR1233698A (fr) * 1959-05-06 1960-10-12 Fond De Montherme Laval Dieu S Brûleur à gaz
FR1234279A (fr) * 1959-05-14 1960-10-17 Brûleur pour tous gaz
GB1337121A (en) * 1970-11-30 1973-11-14 Airoil Burner Fuel burner assemblies
US4257762A (en) * 1978-09-05 1981-03-24 John Zink Company Multi-fuel gas burner using preheated forced draft air

Also Published As

Publication number Publication date
CA1243937A (en) 1988-11-01
EP0158414A3 (en) 1987-01-21
EP0158414A2 (de) 1985-10-16
JPH05606B2 (de) 1993-01-06
JPS60213715A (ja) 1985-10-26
DE3573463D1 (en) 1989-11-09

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