EP1254340A1 - Burner provided with means against the overheating of the burner head - Google Patents

Burner provided with means against the overheating of the burner head

Info

Publication number
EP1254340A1
EP1254340A1 EP01949032A EP01949032A EP1254340A1 EP 1254340 A1 EP1254340 A1 EP 1254340A1 EP 01949032 A EP01949032 A EP 01949032A EP 01949032 A EP01949032 A EP 01949032A EP 1254340 A1 EP1254340 A1 EP 1254340A1
Authority
EP
European Patent Office
Prior art keywords
burner
burner head
burner according
head
openings
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.)
Withdrawn
Application number
EP01949032A
Other languages
German (de)
French (fr)
Inventor
Feliciano Lasagni
Massimo Gilioli
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.)
Beckett Thermal Solutions SRL
Original Assignee
Worgas Bruciatori SRL
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 Worgas Bruciatori SRL filed Critical Worgas Bruciatori SRL
Publication of EP1254340A1 publication Critical patent/EP1254340A1/en
Withdrawn legal-status Critical Current

Links

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
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/10—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with elongated tubular burner head
    • F23D14/105—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with elongated tubular burner head with injector axis parallel to the burner head axis
    • 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
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/045—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with a plurality of burner bars assembled together, e.g. in a grid-like arrangement
    • 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
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/76—Protecting flame and burner parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2212/00—Burner material specifications
    • F23D2212/10—Burner material specifications ceramic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2213/00—Burner manufacture specifications
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/00018—Means for protecting parts of the burner, e.g. ceramic lining outside of the flame tube

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Control Of Combustion (AREA)

Abstract

A burner (2; 2a; 11; 25; 31; 34), comprising a burner body (12; 26; 32; 35), wherein a mixture of fuel and air can be introduced, and a burner head (14; 27; 32; 35a; 41), wherein a plurality of openings (15; 28; 40; 44) is provided, through which said mixture can flow, is associated with shield means (3; 16; 29: 33; 36; 42) shielding said burner head (14; 27; 32; 35a; 41) suitable for limiting the maximum temperature that said burner head (14; 27; 32; 35a; 41) can reach during working of the burner (2; 2a; 11; 25; 31; 34).

Claims

15CLAIMS
1. Burner (2; 2a; 11; 25; 31; 34), comprising a burner body (12; 26; 32; 35) wherein a mixture of fuel and air can be introduced, a burner head (14; 27; 32; 35a; 41) wherein a plurality of openings (15; 28; 40; 44) is provided, through which said mixture can flow, characterized in that it is associated with shield means (3; 16; 29; 33; 36; 42) shielding said burner head (14; 27; 32; 35; 41) suitable for limiting the maximum temperature that said burner head (14; 27; 32; 35a; 41) can reach during working of the burner (2; 2a; 11; 25; 31; 34) .
2. Burner according to claim 1, wherein said shield means (3) is so positioned as to shield said burner head from the heat irradiation originating from walls (1) of a combustion chamber in which said burner (2; 2a) can be inserted.
3. Burner according to one of the preceding claims, wherein said shield means (3) is positioned below the ignition plane of flames produced by combustion of said mixture.
4. Burner according to one of the preceding claims, wherein said shield means comprises at least one flat- element (3).
5. Burner according to claim 4, wherein said at least one flat element (3) has a major dimension oriented in a direction substantially parallel to a longitudinal axis of said burner (2; 2a) .
6. Burner according to claim 4, or 5, wherein said at least one flat element (3) is supported in an isostatic manner. 16
7. Burner according to claim 6, wherein said at least one flat element (3) is rigidly supported at a first end by a structure element of said combustion chamber.
8. Burner according to claim 6, or 7, wherein said at least one flat element (3) is supported, at a second end opposite to said first end, by another structure element of said combustion chamber, so as to be slidable in a direction parallel to said major dimension.
9. Burner according to one of claims 4 to 8, wherein said at least one flat element (3) is provided with at least one stiffening rib (4) extending in a direction substantially parallel to said major dimension.
10. Burner according to one of claims 4 to 9, wherein said at least one flat element (3) is provided with through openings (52) .
11. Burner according to claim 10, wherein said through openings (52) are associated to further shield means (52; 53).
12. Burner according to one of the preceding claims, wherein said shield means (3) is made of a material resisting to high temperatures and to remarkable thermal stresses.
13. Burner according to one of the preceding claims, wherein said shield means (3) is made of a material having high bending and/or torsional stability.
14. Burner according to one of the preceding claims, wherein said shield means (3) is made of a material chosen from a group comprising refractory steel, refractory ceramic material and cermet. 17
15. Burner according to claim 1, wherein said shield means comprises a further burner head (16; 29; 33; 36; 42), which can be superimposed to said burner head (14; 27; 32; 35a; 41) and fixed thereto so as to be capable of sliding with respect to said burner head (14; 27; 32; 35a; 41) as an effect of thermal expansions.
16. Burner according to claim 15, wherein said further burner head (16; 29; 33; 36; 42) comprises a plurality of further openings (17; 30; 37; 45) through which said mixture can flow.
17. Burner according to claim 15, or 16, wherein said further openings (17; 30; 37; 45) can be aligned with said openings (15; 28; 40; 44) .
18. Burner according to one of claims 15 to 17, wherein said further burner head (16; 29; 33; 36; 42) is connected to said burner head (14; 27; 32; 35a; 41) through connecting means (S; 12; 19a; 26a; 28; 29; 33) substantially removable.
19. Burner according to one of claims 15 to 18, wherein said burner head (14) is provided with first guide means (19) for said further burner head (16), said first guide means (19) being suitable for coupling with second guide means (20, 21) provided in said further burner head (16).
20. Burner according to claim 19, wherein said first guide means comprises pin means (19).
21. Burner according to claim 19, or 20, wherein said second guide means comprises slot means (20, 21). 18
22. Burner according to one of claims 18 to 21, wherein said connecting means comprises "U" shaped small plate means (22) .
23. Burner according to claim 22, wherein said "U" shaped small plate means (22) is insertable in a first opening (23) provided in said burner head (14) and in a respective second opening (24) provided in said further burner head (16) .
24. Burner according to one of claims 18 to 21, wherein said connecting means comprises bracket means (38).
25. Burner according to claim 24, wherein said bracket means (38) is fixed in a substantially removable manner to said burner head (35a) , near the ends of said further burner head (36) .
26. Burner according to one of claims 15 to 25, wherein said further burner head (36) is provided with ribs (46, 47, 48) .
27. Burner according to claim 26, wherein said ribs (46, 47, 48) extend transversely to said further burner head (16) and in a direction substantially perpendicular to the surface of said further burner head (16) .
28. Burner according to claim 26, or 27, wherein said ribs (46, 47, 48) comprise a first rib (46) arranged at a first end of said further burner head (16) and a second rib (47) arranged at a second end of said further burner head (16) .
29. Burner according to one of claims 26 to 28, wherein said ribs (46, 47, 48) comprise a further rib (48) arranged in a substantially central position of said further burner head (16). 19
30. Burner according to one of claims 18 to 21, wherein said connecting means comprises strap means (39).
31. Burner according to claim 30, wherein said strap means (39) is fixed in a substantially removable manner to said head, near the ends of said further burner head (36) .
32. Burner according to one of claims 18 to 21, wherein said burner head is a portion of a first tubular body (32) and said further burner head is a portion of a second tubular body (33), substantially externally concentric to said first tubular body (32) .
33. Burner according to one of claims 18 to 21, wherein said burner head (41) and said further burner head (42) are substantially flat.
34. Burner according to claim 33, wherein said burner head (41) and said further burner head (42) are mutually connected through connecting elements (43) arranged along a couple of respective opposite sides of said burner head (41) and of said further burner head (42).
35. Burner according to claim 34, wherein said connecting elements (43) have a "C" shaped cross section.
36. Burner according to claim 34, or 35, wherein said connecting elements (43) are connected in a removable manner to the burner body.
37. Burner according to one of claims 16 to 36, wherein the dimensions of said openings (15; 28; 40; 44) and of said further openings (17; 30; 37; 45) and the position of said further burner head (16; 29; 33; 36; 42) with respect to said 20
burner head (14; 27; 32; 35a; 41) are so chosen that, in full power working conditions, the further openings (17; 30; 37; 45) and the openings (15; 28; 40; 44) are mutually aligned so as to define the largest flowing section for said mixture.
38. Burner according to one of claims 16 to 37, wherein the dimensions of said openings (15; 28; 40; 44) and of said further openings (17; 30; 37; 45) and the position of said further burner head (16; 29; 33; 36; 42) with respect to said burner head (14; 27; 32; 35a; 41) are so chosen that, in minimum power or near minimum power working conditions, the flowing section for said mixture of air and fuel is throttled.
39. Burner according to one of claims 16 to 36, wherein the dimensions of said openings (15; 28; 40; 44) and of said further openings (17; 30; 37; 45) and the position of said further burner head (16; 29; 33; 36; 42) with respect to said burner head (14; 27; 32; 35a; 41) are so chosen that the overall flowing section for said mixture of air and fuel is substantially constant in any normal working conditions.
EP01949032A 2000-02-02 2001-02-01 Burner provided with means against the overheating of the burner head Withdrawn EP1254340A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITMO000010 2000-02-02
IT2000MO000010A IT1315588B1 (en) 2000-02-02 2000-02-02 BURNER EQUIPPED WITH MEANS OF PROTECTION AGAINST OVERHEATING OF THE BURNER HEAD.
PCT/IB2001/000128 WO2001057438A1 (en) 2000-02-02 2001-02-01 Burner provided with means against the overheating of the burner head

Publications (1)

Publication Number Publication Date
EP1254340A1 true EP1254340A1 (en) 2002-11-06

Family

ID=11450331

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01949032A Withdrawn EP1254340A1 (en) 2000-02-02 2001-02-01 Burner provided with means against the overheating of the burner head

Country Status (5)

Country Link
US (1) US20030148240A1 (en)
EP (1) EP1254340A1 (en)
AU (1) AU2001228739A1 (en)
IT (1) IT1315588B1 (en)
WO (1) WO2001057438A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7514049B2 (en) * 2003-04-11 2009-04-07 M-I L.L.C. Method and apparatus for thermal phase separation
ITMO20030154A1 (en) * 2003-05-23 2004-11-24 Worgas Bruciatori Srl MODULABLE BURNER
ITBO20060758A1 (en) * 2006-11-08 2008-05-09 Gas Point S R L BOILER WITH COMBUSTION HEAD COOLING SYSTEM
MX2010008176A (en) * 2008-01-28 2010-08-11 Tetra Laval Holdings & Finance Gas burner.
US8336534B2 (en) 2008-03-06 2012-12-25 Andrew Irvin Adjustable gas grill burner and method of making and using the same
WO2012089611A2 (en) * 2010-12-29 2012-07-05 Tetra Laval Holdings & Finance S.A. Flame treatment of a substrate
EP3064831A1 (en) * 2015-02-16 2016-09-07 Worgas Bruciatori S.r.l. Gas burner for a heater

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US312976A (en) * 1885-02-24 Hydrocarbon-burner
US1012199A (en) * 1911-01-11 1911-12-19 Mont Greenlee Burner.
US1069860A (en) * 1911-07-20 1913-08-12 Albert C Dale Oil-gas generator and burner.
US1610542A (en) * 1926-04-27 1926-12-14 Wilson Alva Raymond Gas burner
US2076479A (en) * 1935-01-12 1937-04-06 Connell S Inc O Automatic toaster
US2148368A (en) * 1938-04-19 1939-02-21 Holyoke Heater Company Burner apparatus
US2621720A (en) * 1950-12-02 1952-12-16 Heatbath Appliances Inc Air-cooled gas burner
US2869630A (en) * 1954-04-28 1959-01-20 John H Flynn Gas burner with selective flame distribution
US2807320A (en) * 1954-06-28 1957-09-24 Ensign Ribbon Burners Inc Ribbon type gas burner with flame control
GB1089478A (en) * 1965-11-02 1967-11-01 Int Standard Electric Corp Sheet metal burner rack assembly for gas fired hot air furnaces
US4561419A (en) * 1984-04-18 1985-12-31 Modern Home Products Corp. Adjustable burner assembly
AT389065B (en) * 1987-10-07 1989-10-10 Vaillant Gmbh METHOD FOR PRODUCING A BURNER, IN PARTICULAR GAS BURNER, AND BURNER PRODUCED BY THIS METHOD
GB9025787D0 (en) * 1990-11-27 1991-01-09 Baxi Partnership Ltd Gas-fired appliances
GB2270972B (en) * 1992-09-15 1996-02-28 Gazco Ltd Gas fire burner
DE4433184C1 (en) * 1994-09-17 1996-03-07 Buderus Heiztechnik Gmbh Combustion bar for atmospheric gas burner
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Title
See references of WO0157438A1 *

Also Published As

Publication number Publication date
AU2001228739A1 (en) 2001-08-14
IT1315588B1 (en) 2003-03-14
ITMO20000010A1 (en) 2001-08-02
WO2001057438A1 (en) 2001-08-09
US20030148240A1 (en) 2003-08-07

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