US3517887A - Linear slot burner - Google Patents

Linear slot burner Download PDF

Info

Publication number
US3517887A
US3517887A US735082A US3517887DA US3517887A US 3517887 A US3517887 A US 3517887A US 735082 A US735082 A US 735082A US 3517887D A US3517887D A US 3517887DA US 3517887 A US3517887 A US 3517887A
Authority
US
United States
Prior art keywords
fuel
ducts
burner
duct
combustion zone
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
US735082A
Other languages
English (en)
Inventor
Denis Henry Desty
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.)
BP PLC
Original Assignee
BP PLC
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 BP PLC filed Critical BP PLC
Application granted granted Critical
Publication of US3517887A publication Critical patent/US3517887A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F23D14/46—Details
    • 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
    • F23D14/583—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration of elongated shape, e.g. slits
    • F23D14/586—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration of elongated shape, e.g. slits formed by a set of sheets, strips, ribbons or the like

Definitions

  • a burner for fluid, preferably gaseous, fuels comprises one or more elongated fuel ducts each with an elongated fuel exit slit.
  • the ducts may be corrugated so that their juxtaposition forms air tubes. 7
  • the exit slit may be packed to increase its exit resistance.
  • This invention relates to a burner for fluid fuel, i.e. to a burner suitable for use with both liquid and gaseous fuels.
  • a burner for fluid, pref erably gaseous, fuels comprises one or more fuel ducts each of which has an elongated configuration with a longitudinal exit slit positioned so as to direct fuel into a combustion zone, different portions of the fuel ducting being arranged in juxtaposition with one another so as to form air channels adapted to convey air into the combustion zone.
  • ducts Where a plurality of ducts are utilised they may be connected in series. This may be achieved by connecting different segments via link passages which are situated outside the combustion zone. This may give configurations similar to the single duct embodiments described in the previous paragraph except that the link passages have no exit slit since they are situated outside the combustion zone.
  • the preferred arrangement utilises a plurality of fuel ducts connected in parallel, said ducts being aligned side by side so as to form air channels between them.
  • the fuel ducts have a corrugated configuration and they are aligned so that adjacent ducts contact one another at the extremities of their corrugations so as to form air tubes adapted to convey air into the combustion zone.
  • a burner for fluid, preferably gaseous, fuels which incorporates the preferred embodiments specified above comprises a plurality of corrugated, elongated fuel ducts which are connected in parallel and each of which has a longitudinal slit which extends over the whole length of the duct adjacent to the combustion zone, the fuel ducts being arranged side by side so that adjacent ducts contact one another at the extremities of their corrugations so as to form air tubes adapted to convey air into the combustion zone.
  • the invention also includes burners as described above in which the exit slit contains packing to increase the exit resistance.
  • the packing conveniently takes the form of several layers of strip material, e.g. metal gauze or crimped metal foil.
  • strip material e.g. metal gauze or crimped metal foil.
  • one or both sides of the slit may be crimped. Where there is no packing this crimping helps to increase the resistance and it also helps to define the slit width.
  • crimped and corrugated have similar meanings in that both imply a wavy configuration but crimped implies a shorter wave length and smaller amplitude than corrugated.
  • FIGS. 1-8 Several embodiments of the invention will now be described by way of example with reference to the accompanying drawings, FIGS. 1-8.
  • FIGS. 1-8 Several embodiments of the invention will now be described by way of example with reference to the accompanying drawings, FIGS. 1-8.
  • FIGS. 1-8 Several embodiments of the invention will now be described by way of example with reference to the accompanying drawings, FIGS. 1-8.
  • FIGS. 1-8 In these drawings:
  • FIG. 1 shows a typical vertical cross-section through a burner according to the invention when corrugated fuel ducts are not employed
  • FIGS. 2-5 are different plan views which can be associated with the cross-section shown in FIG. 1,
  • FIG. 6 shows the construction of a corrugated fuel uct
  • FIG. 7 is a diagrammatic perspective view of a burner using the duct of FIG. 6, and
  • FIG. 8 is a cross-section showing a packed exit slit.
  • FIG. 1 A characteristic cross-section of a burner according to the invention is shown in FIG. 1.
  • This comprises a plurality of fuel ducts 10 (which may be portions of the same fuel duct as will appear from FIGS. 2, 3 and 4 or sections of different ducts as will appear from FIG. 5) which are arranged in juxtaposition so as to form a plurality of air channels 11.
  • Each duct 10 is provided along its upper edge with and exit slit 12 which, in the use of the burner, conveys fuel into the combustion zone which is situated immediately above the burner. Natural draught draws combustion air through the air channels.
  • the internal resistance of the fuel ducts 10 i.e. the resistance to longitudinal flow of gas
  • the resistance of the exit slit 12 i.e. the resistance to the flow of gas from the interior of the duct to the combustion zone, so that there is substantially uniform pressure along the fuel duct 10.
  • the exterior of the fuel ducts 10 is arranged so that the air channels 11 have a suitable shape for directing combustion air into the combustion space.
  • FIG. 2 shows how the cross-section of FIG. 1 can be achieved by a single fuel duct formed into a serpentine configuration.
  • This duct has a single slit 12 which extends over its whole length and is connected to the fuel supply via a header 14 which has no exit slit since it is outside the combustion zone.
  • a similar result can be achieved,
  • the arrangement shown in FIG. 4 comprises six separate fuel ducts 10 connected in series by means of link passages 13. Since these, like the header 14, are situated outside the combustion zone they have no gas exit slits. Each of the fuel ducts 10 is provided with a single exit slit 12 which extends across the whole width of the combustion zone.
  • FIG. 5 utilises six separate fuel ducts 10 which are connected in parallel, each via its own header 14, to a common supply pipe 21.
  • the six fuel ducts are arranged side by side to provide five air channels 11.
  • Each fuel duct is provided with a single exit slit 12 which extends across the width of the combustion zone.
  • FIG. 6 shows the formation of a corrugated fuel duct from a strip of corrugated metal.
  • the strip has a shoulder 15 at the top so that a top rim 16 is formed; a similar shoulder 17 at the bottom forms a bottom rim 18 on the same side as the top rim 16-
  • the fuel duct is formed by folding the strip so that the corrugations match up and soldering the two portions of the bottom rim 18 to make a gastight joint. This produces a high resistance slit from the two halves of the upper rim 16.
  • FIG. 6 shows the folding almost completed. If desired one or both of the shoulders 15 and 17 maybe crimped. This helps to increase the resistance and to define the slit width.
  • the burner shown in FIG. 7 was formed from four ducts of the type illustrated in FIG. 6. These ducts are aligned so that adjacent ducts contact one another at the extremities of their corrugations so as to form air tubes 20. Enough contacts are soldered to give stability to the structure.
  • the ducts are connected to a supply pipe 21 so that, in the use of the burner, fuel gas passes through the interior of the ducts and emerges into the.
  • a fuel duct with packing in the exit slit is conveniently manufactured from a rectangular strip of metal.
  • the length of the strip is equal to the length of the fuel duct (measured round the corrugations) and the width of the strip is equal to twice the height of the fuel duct.
  • the strip As the first stage of manufacture the strip is folded along the centre line and, as shown in FIG. 8, this produces a U-shaped cross-section having arms 23 and 24, and packing 25 consisting of several layers of metal gauze or crimped metal foil, is inserted into the mouth 'of the U.
  • the U is corrugated, either by rolling or pressing, and this compresses the packing to ensure a high exit resistance.
  • a burner for fluid fuels which comprises one fuel duct which has an elongated configuration with a longitudinal fuel exit slit positioned so as to direct fuel into a combustion zone, the fuel duct having a corrugated 4- configuration and following a tortuous path so that different sections thereof are arranged in juxtaposition with one another, the sections in juxtaposition being aligned so that they contact one another at the extremities of their corrugations so as to form air tubes adapted to convey air into the combustion zone.
  • a burner according to claim 1 in' which the duct follows a serpentine path.
  • a burner according to claim 1 which comprises packing situated in the exit slit to increase the exit resistance.
  • a burner for fluid fuels which comprises a plurality of fuel ducts each of which has an elongated configuration with a longitudinal fuel exit slit positioned so as to direct fuel into a combustion zone, the fuel ducts having a corrugated configuration and being connected in parallel and aligned side by side so that adjacent ducts contact one another at the extremities of their corrugations so as to form air tubes adapted to convey air into the combustion zone.
  • a burner according to claim 5 which comprises packing situated in all the exit slits to increase the exit resistance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)
US735082A 1967-06-19 1968-06-06 Linear slot burner Expired - Lifetime US3517887A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB28062/67A GB1220596A (en) 1967-06-19 1967-06-19 Linear slot burner

Publications (1)

Publication Number Publication Date
US3517887A true US3517887A (en) 1970-06-30

Family

ID=10269649

Family Applications (1)

Application Number Title Priority Date Filing Date
US735082A Expired - Lifetime US3517887A (en) 1967-06-19 1968-06-06 Linear slot burner

Country Status (12)

Country Link
US (1) US3517887A (en:Method)
JP (1) JPS4829408B1 (en:Method)
AT (1) AT285110B (en:Method)
BE (1) BE716807A (en:Method)
CH (1) CH489749A (en:Method)
DE (1) DE1751538C3 (en:Method)
DK (1) DK121773B (en:Method)
FR (1) FR1569348A (en:Method)
GB (1) GB1220596A (en:Method)
NL (1) NL6808627A (en:Method)
NO (1) NO125015B (en:Method)
SE (1) SE343126B (en:Method)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4138534A1 (de) * 1991-11-23 1993-05-27 Pharos Ind Und Handels Gmbh Heizbrennervorrichtung fuer industrielle oefen
US6439881B2 (en) * 2000-03-28 2002-08-27 General Electric Company Spiral-shaped atmospheric gas burner
US6439882B2 (en) 2000-03-31 2002-08-27 General Electric Company Dual fuel circuit gas burner
EP2110603A1 (en) * 2008-04-15 2009-10-21 Aldo Polidoro Suctioned or blown air multigas burner
USD809602S1 (en) * 2015-10-16 2018-02-06 Young Min JEOUNG Ball-point pen
US10151493B2 (en) 2015-05-29 2018-12-11 Lynx Grills, Inc. Gas safety shutoff

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2853309C2 (de) * 1978-12-09 1984-04-05 Kernforschungsanlage Jülich GmbH, 5170 Jülich Keramischer Brennerkopf für gasförmigen Brennstoff
US4392038A (en) * 1979-01-16 1983-07-05 Raytheon Company Self-cleaning microwave convection oven
EP0017156B1 (de) * 1979-03-29 1983-10-12 Forschungszentrum Jülich Gmbh Keramischer Brennerkopf mit zum Brennermund parallel zueinander geführten Strömungskanälen für Brennstoff und Oxidationsmittel
IT1394166B1 (it) * 2009-05-13 2012-05-25 Polidoro Testa di bruciatore multigas ad aria aspirata o soffiata

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1267448A (en) * 1916-11-10 1918-05-28 L H Piatt Gas-burner.
US2525350A (en) * 1947-02-11 1950-10-10 Servel Inc Gas burner with crimped ribbon port structure
US2615509A (en) * 1949-01-29 1952-10-28 Alice P Whittington Gas burner having multiple primary air inlets
US3035633A (en) * 1959-09-14 1962-05-22 Palko Andrew Oil burner

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE357304C (de) 1922-08-19 Maschb A G Balcke Abt Moll Brenner fuer Gasfeuerungen
US2607405A (en) 1950-10-20 1952-08-19 Surface Combustion Corp Gas burner having removable port-forming grid
DE875982C (de) 1951-02-03 1953-05-07 Friedrich Ley Gasbrenner, insbesondere fuer Schwachgas
US3133588A (en) 1960-02-15 1964-05-19 Philip M Pappas Formable gas burner
DE1429131A1 (de) 1964-02-13 1969-05-08 Rolf Buns Sekundaerduesen-Platte fuer Bunsenbrenner mit einzeln vorstehenden Duesenwarzen
DE1241774B (de) 1964-12-12 1967-06-08 Junkers & Co Rostbrenner fuer gasbeheizte Geraete

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1267448A (en) * 1916-11-10 1918-05-28 L H Piatt Gas-burner.
US2525350A (en) * 1947-02-11 1950-10-10 Servel Inc Gas burner with crimped ribbon port structure
US2615509A (en) * 1949-01-29 1952-10-28 Alice P Whittington Gas burner having multiple primary air inlets
US3035633A (en) * 1959-09-14 1962-05-22 Palko Andrew Oil burner

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4138534A1 (de) * 1991-11-23 1993-05-27 Pharos Ind Und Handels Gmbh Heizbrennervorrichtung fuer industrielle oefen
US6439881B2 (en) * 2000-03-28 2002-08-27 General Electric Company Spiral-shaped atmospheric gas burner
US6439882B2 (en) 2000-03-31 2002-08-27 General Electric Company Dual fuel circuit gas burner
EP2110603A1 (en) * 2008-04-15 2009-10-21 Aldo Polidoro Suctioned or blown air multigas burner
US10151493B2 (en) 2015-05-29 2018-12-11 Lynx Grills, Inc. Gas safety shutoff
US10830449B2 (en) 2015-05-29 2020-11-10 Lynx Grills, Inc. Gas safety shutoff
US11300298B2 (en) 2015-05-29 2022-04-12 Lynx Grills, Inc. Gas safety shutoff
US11662098B2 (en) 2015-05-29 2023-05-30 Lynx Grills, Inc. Gas safety shutoff
US12111060B2 (en) 2015-05-29 2024-10-08 Lynx Grills, Inc. Gas safety shutoff
USD809602S1 (en) * 2015-10-16 2018-02-06 Young Min JEOUNG Ball-point pen

Also Published As

Publication number Publication date
SE343126B (en:Method) 1972-02-28
DE1751538C3 (de) 1974-05-09
NL6808627A (en:Method) 1968-12-20
CH489749A (de) 1970-04-30
DE1751538A1 (de) 1971-11-25
JPS4829408B1 (en:Method) 1973-09-10
DK121773B (da) 1971-11-29
BE716807A (en:Method) 1968-12-19
AT285110B (de) 1970-10-12
NO125015B (en:Method) 1972-07-03
FR1569348A (en:Method) 1969-05-30
DE1751538B2 (de) 1973-10-04
GB1220596A (en) 1971-01-27

Similar Documents

Publication Publication Date Title
US3517887A (en) Linear slot burner
US2119761A (en) Heat interchange device
USRE39309E1 (en) Baffle for deep fryer heat exchanger
KR940020091A (ko) 열교환 장치
IE781346L (en) Channel base well screen
KR830002215A (ko) 연동 스트립(strip)을 갖는 터블레이터(Turbulator)
US4361184A (en) Plate heat exchanger
US3718426A (en) Burner
US2041706A (en) Gaseous fuel burner
US1689067A (en) Air heater
US2525350A (en) Gas burner with crimped ribbon port structure
GB515444A (en) Improvements in or relating to multi-flame gas burners
US9022779B2 (en) Multi-gas burner head with sucked or blown air
JP2012509757A (ja) 波形の交差した充填材、およびこの充填材を詰めたカラム
GB2131717A (en) Air filter
US3628735A (en) Burner for use with fluid fuels
US1680673A (en) Core for radiators
US1011456A (en) Gas-heater.
US3688759A (en) Outer building wall air heating device with a heat exchanger
US878999A (en) Sheet-metal gauze or grating.
JPS5969606A (ja) 熱気流発生用バ−ナ−
US1778839A (en) Gas burner
EP0565145B1 (en) A gas burner of the atmospheric type for water heating appliances, particularly heaters of the so-called instant type
US515250A (en) reynolds
US823589A (en) Water-heater.