EP0863366A2 - Brûleur à gaz - Google Patents

Brûleur à gaz Download PDF

Info

Publication number
EP0863366A2
EP0863366A2 EP97120543A EP97120543A EP0863366A2 EP 0863366 A2 EP0863366 A2 EP 0863366A2 EP 97120543 A EP97120543 A EP 97120543A EP 97120543 A EP97120543 A EP 97120543A EP 0863366 A2 EP0863366 A2 EP 0863366A2
Authority
EP
European Patent Office
Prior art keywords
gas flow
combustion chamber
air supply
supply duct
gas
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.)
Granted
Application number
EP97120543A
Other languages
German (de)
English (en)
Other versions
EP0863366B1 (fr
EP0863366A3 (fr
Inventor
Jaroslav Klouda
Maarten Joannes Botman
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.)
Rational AG
Original Assignee
Rational AG
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 Rational AG filed Critical Rational AG
Publication of EP0863366A2 publication Critical patent/EP0863366A2/fr
Publication of EP0863366A3 publication Critical patent/EP0863366A3/fr
Application granted granted Critical
Publication of EP0863366B1 publication Critical patent/EP0863366B1/fr
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
    • 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
    • F23D14/08—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 axial outlets at the burner head
    • F23D14/085—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 axial outlets at the burner head with injector axis inclined 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
    • 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
    • F23D14/70—Baffles or like flow-disturbing devices

Definitions

  • the invention relates to a gas burner, in particular for use in kitchen technology, with one air supply duct and one Combustion chamber, which are arranged at an angle to each other, and a deflecting device for deflecting a gas flow from the air supply duct into the combustion chamber.
  • gas burners are because their compact design advantageous and among other things, e.g. in connection with steam generators, in commercial kitchen technology used.
  • a mixture is usually used in the area of the deflection device generated from air and a fuel gas, which is then in the Combustion chamber is initiated.
  • This object is achieved in that at one Gas burner with an air supply duct and a combustion chamber, which in are arranged at an angle to each other, and a deflection device for redirecting a gas flow from the air supply duct into the Combustion chamber a compensation device is provided, which the Gas flow to or near the outside of the combustion chamber, which in a section along the plane of the angle between the direction of the gas flow in the combustion chamber and the direction of the gas flow in the air supply duct further away from the air supply duct is in favor of the gas flow on or near the inside the combustion chamber, which is in a section along the Plane of the angle between the direction of gas flow in the Combustion chamber and the direction of the gas flow in the air supply duct is closer to the air supply duct, so that the gas flow in the Combustion chamber, based on a cross section perpendicular to the direction of the gas flow in the combustion chamber is evened out.
  • the invention can provide a deflector which detects the gas flow in a part of the deflection device, which is an extension of the Air supply duct forms, divided into several partial flows, one first, smaller partial flow to the outside of the combustion chamber and a second, larger partial flow to the inside of the combustion chamber is directed.
  • a baffle can also be provided, which in the deflection device after deflecting one of the Air supply duct coming gas stream at least part of the Gas flow a pulse component in parallel and / or opposite to the direction of the gas flow in the air supply duct.
  • a deflection element for deflecting one of the Air supply duct coming gas flow is provided in the deflection device be with one end transverse to the direction of this gas flow partially protrudes into it and cruciform at this end arranged guide surfaces parallel to the direction of the gas flow in the combustion chamber.
  • the cross-shaped guide surfaces of the deflecting element can angled at the end facing the combustion chamber be, with the angled sections based on a rotation around the longitudinal axis of the deflecting element, in the same direction point.
  • an at least partially spiral air baffle is arranged is, the spiral axis parallel to the direction of the Gas flow is in the combustion chamber.
  • the gas burner according to the invention can have a premixing chamber and a Have secondary air duct, which between the air supply duct and the combustion chamber are arranged, wherein in the premixing chamber and / or in the secondary air duct means for equalizing the Gas flow in the combustion chamber perpendicular to a cross section provided for the direction of gas flow in the combustion chamber are.
  • a deflection device can also be provided in the secondary air duct be which a larger proportion of the secondary air to the Directs the area of the mouth of the premixing chamber into the combustion chamber, and a smaller proportion of the secondary air to the outside or the Steers inside of the combustion chamber.
  • the premixing chamber can be angular and the means to even out the gas flow in the combustion chamber in an area substantially parallel to the direction of flow be arranged in the combustion chamber.
  • the illustrated embodiment of the gas burner according to the invention comprises an air supply duct 1 and a tubular one Combustion chamber 3, which are connected via a deflection device, which is generally designated 5.
  • the deflection device 5 contains a premixing tube 7 and a premixing tube 7 surrounding it Secondary air duct 9, the pre-mixing tube 7 and the secondary air duct 9 are substantially concentric with each other.
  • the premix pipe 7 is substantially rectangular, wherein a leg 11 runs parallel to the air supply duct 1 and with the wall of the air supply duct 1, an inlet opening for the secondary air duct 9 forms.
  • the other leg 13 of the premix tube 13 is parallel to the direction of gas flow in the combustion chamber 3, that is parallel to the longitudinal direction of the combustion chamber 3.
  • Premix pipe 7 In the Premix pipe 7 is a supply line for fuel gas 15, which via a fuel gas nozzle 17 into the air flow in the premixing tube 7 dispense and mixed with this.
  • an ignition electrode 19 At the mouth of the premix pipe 7 in the combustion chamber 3 is an ignition electrode 19 for Ignition of the escaping rich air / fuel gas mixture is provided.
  • Ignition of the escaping rich air / fuel gas mixture In addition to the direct combustion of this fuel mixture takes place secondary combustion with that via the secondary air duct 9 supplied secondary air instead.
  • a deflection element 30 is inserted in the leg 13, that in the parallel to the air supply duct 1 leg 11 protrudes.
  • the deflection element 30 has four cross-shaped in an upper region 30a arranged flat surfaces 31 parallel to the direction of the Leg 13 on, the ends of this cross on the walls of the Leg 13 of the premixing tube rest.
  • a lower area 30b the cross-shaped cross section goes into angled flat blade sections 32 over.
  • These blade sections form with the corresponding surface in section 30a an obtuse angle and are arranged rotationally symmetrically in the manner of a propeller, so that they each give an angular momentum to the gas stream hitting them or give swirl in the same direction.
  • the blade sections 32 do not have to be level, but can also, for example after Kind of a turbine blade, be curved.
  • the deflecting element 30 has a double function. Through the cruciform Part in the area 30a, which in the area of Leg 11 of the premix tube 7 protrudes, the proportion of Gas flow in the premix tube 7 is limited to the outside the combustion chamber 3 is guided. This proportion is the smaller, ever further the element 30 protrudes into the leg 11. This will compensates for the imbalance, otherwise between the flow exist on the outside and inside of the combustion chamber 3 would.
  • the blade-shaped sections 32 give this in each case an angular momentum, each in the same direction, so that a vortex with an axis of rotation in essentially parallel to the direction of flow in the combustion chamber 3, that is, parallel to the longitudinal axis thereof.
  • Air guiding surfaces 40 and 42 are arranged in the secondary air duct 9, which are shown in Fig. 1a and 1b with dashed lines are. These air baffles are responsible for the main part of the Air flow in the secondary air duct 9 to the mouth of the premix tube 7 to concentrate in the combustion chamber 3, so that the Secondary combustion is optimized. In contrast, the current the air in the secondary air duct 9 to the walls of the combustion chamber minimized.
  • the secondary air duct in the secondary air duct additional means for generating a Twists the gas flow with an axis of rotation parallel to that Flow direction provided in the combustion chamber 3.
  • swirl is opposite to the swirl caused by the blade-shaped sections 32 of the deflecting element 30 is produced. This results in a particularly good mixing of the secondary air with the escaping fuel mixture.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Glass Compositions (AREA)
  • Gas Separation By Absorption (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)
  • Air Supply (AREA)
EP97120543A 1997-02-28 1997-11-24 Brûleur à gaz Expired - Lifetime EP0863366B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19708218A DE19708218C2 (de) 1997-02-28 1997-02-28 Gasbrenner
DE19708218 1997-02-28

Publications (3)

Publication Number Publication Date
EP0863366A2 true EP0863366A2 (fr) 1998-09-09
EP0863366A3 EP0863366A3 (fr) 1999-07-07
EP0863366B1 EP0863366B1 (fr) 2003-02-19

Family

ID=7821876

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97120543A Expired - Lifetime EP0863366B1 (fr) 1997-02-28 1997-11-24 Brûleur à gaz

Country Status (5)

Country Link
US (1) US5931657A (fr)
EP (1) EP0863366B1 (fr)
JP (1) JP3657766B2 (fr)
AT (1) ATE232950T1 (fr)
DE (2) DE19708218C2 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6872070B2 (en) 2001-05-10 2005-03-29 Hauck Manufacturing Company U-tube diffusion flame burner assembly having unique flame stabilization
SE532693C2 (sv) * 2007-03-29 2010-03-16 Wo R Ld Consulting Ab Avvattningsanordning
DE102008000050A1 (de) * 2007-08-07 2009-02-12 Alstom Technology Ltd. Brenner für eine Brennkammer einer Turbogruppe
KR101371100B1 (ko) * 2013-08-12 2014-03-07 (주)티에스케이에프 가스오븐레인지의 연소용 가스와 공기 혼합장치
WO2016024005A1 (fr) * 2014-08-14 2016-02-18 Munster Simms Engineering Limited Appareil de chauffage
GB2529233B (en) 2014-08-14 2017-09-27 Munster Simms Eng Ltd Burner device for heating apparatus
DE202017100629U1 (de) * 2017-02-07 2017-02-20 Palux Aktiengesellschaft Gasbrennervorrichtung für einen Wärmetauscher
US10253978B2 (en) * 2017-03-10 2019-04-09 Lennox Industries Inc. Gas-air mixer assembly
ES3008462T3 (en) * 2017-06-19 2025-03-24 Selas Heat Tech Company Llc Baffle assembly for modifying transitional flow effects between different cavities
IT202100002357A1 (it) 2021-02-03 2022-08-03 Ali Group S R L “dispositivo antirisonanza in un forno a gas del tipo per la cottura degli alimenti nella ristorazione collettiva”

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH136320A (de) * 1928-12-10 1929-11-15 Hufschmidt Karl Brenner für Kohlenstaubfeuerungen.
US2244821A (en) * 1940-05-13 1941-06-10 Frederick S Bloom Combustion apparatus
US2615407A (en) * 1949-06-28 1952-10-28 Comb Eng Superheater Inc Distributor means for pulverized fuel burners
US2610675A (en) * 1950-11-16 1952-09-16 C A Olsen Mfg Company Flame retaining atmospheric gas burner
FR1232372A (fr) * 1959-04-18 1960-10-07 Gaz De France Brûleur pour gaz à faible vitesse de déflagration
US3299940A (en) * 1963-06-22 1967-01-24 American Smelting Refining Burner structure
GB1345442A (en) * 1972-06-14 1974-01-30 Imp Metals Ind Kynoch Ltd Gas-fired water heating applinances
DE2319194A1 (de) * 1973-04-16 1974-10-24 Konstantin Sergeewitsc Pirogow Gasbrenner
US3915625A (en) * 1974-05-02 1975-10-28 Raytheon Co Heat injector gas burner
US3957421A (en) * 1974-09-03 1976-05-18 Raytheon Company Heat injector gas burner
DE3327140A1 (de) * 1983-07-27 1985-02-14 Philipp Kreis GmbH & Co Truma-Gerätebau, 8000 München Gasbrenner, insbesondere fuer fluessiggas, zum einbau in einen waermetauscher
JPH06105516A (ja) * 1992-09-17 1994-04-15 Aisin Aw Co Ltd 電気自動車駆動装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Also Published As

Publication number Publication date
EP0863366B1 (fr) 2003-02-19
DE59709350D1 (de) 2003-03-27
US5931657A (en) 1999-08-03
ATE232950T1 (de) 2003-03-15
EP0863366A3 (fr) 1999-07-07
JP3657766B2 (ja) 2005-06-08
DE19708218C2 (de) 2002-01-31
DE19708218A1 (de) 1998-09-03
JPH1137422A (ja) 1999-02-12

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