EP0601018A1 - Bruleur a gaz, notamment pour gaz liquefie - Google Patents

Bruleur a gaz, notamment pour gaz liquefie

Info

Publication number
EP0601018A1
EP0601018A1 EP92918371A EP92918371A EP0601018A1 EP 0601018 A1 EP0601018 A1 EP 0601018A1 EP 92918371 A EP92918371 A EP 92918371A EP 92918371 A EP92918371 A EP 92918371A EP 0601018 A1 EP0601018 A1 EP 0601018A1
Authority
EP
European Patent Office
Prior art keywords
burner
gas
glasses
gas burner
burner according
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
EP92918371A
Other languages
German (de)
English (en)
Other versions
EP0601018B1 (fr
Inventor
Josef Brandtner
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.)
Philipp Kreis & Co Truma-Geratebau GmbH
Original Assignee
Philipp Kreis & Co Truma-Geratebau GmbH
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 Philipp Kreis & Co Truma-Geratebau GmbH filed Critical Philipp Kreis & Co Truma-Geratebau GmbH
Publication of EP0601018A1 publication Critical patent/EP0601018A1/fr
Application granted granted Critical
Publication of EP0601018B1 publication Critical patent/EP0601018B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F23D14/08—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

Definitions

  • the invention relates to a gas burner, in particular for liquid gas, for installation in a flame tube or a combustion chamber housing of a heat exchanger for space heaters or the like, according to the preamble of patent claim 1.
  • a burner mouthpiece is arranged coaxially in a flame tube and connected to a mixing tube for the gas and first air supply.
  • a second air duct is formed around this burner mouthpiece, for which purpose holes are provided in an annular surface surrounding the mouthpiece, in order to feed the necessary second air to the burner flame through the air jets emerging therefrom. Since the actual firing surface of the mouthpiece is arranged higher than the secondary air holes and, in addition, the air jets are steered upwards relatively steeply by an upstanding cylinder wall, the gas flame is supplied with sufficient secondary air only in its edge area, while there is a lack of secondary air in the flame core.
  • the mixing tube leading from the gas nozzle to the burner mouthpiece is a finned hose with a constant diameter and only within the mouthpiece is a short funnel-shaped extension up to the metal sieve, so that the mixing action in this mixing tube is essentially only possible the surface ribbing in the interior of the pipe is reached.
  • the invention is based on the object of creating a gas burner which ensures increased combustion performance through improved air supply.
  • the flame Due to the deepening of the actual firing surface according to the invention on burner glasses with secondary air nozzles arranged in a circle above it, the flame is adequately supplied with secondary air and optimum combustion is thereby achieved. Because the air jets now only sweep over the focal surface slightly above the flame roots, the secondary air influences the flame over the full cross-section and not only its outer areas. The at a predetermined blow angle aligned second air nozzles also promote flame stabilization without interfering with the flame development. The fact that the secondary air comes completely into contact with the flame prevents the more or less heated air from rising in the edge region of the flame tube with the combustion gases and thus unmixed impairing the heat transfer through the heating surfaces of the heat exchanger.
  • the combustion performance is also increased by the injector of the mixing tube for the primary air, because its graded expansion ensures a more intensive mixing effect with a more even distribution of the gas-air mixture over the entire combustion surface.
  • the interaction of this injector with the secondary air flow resulting from the deepening of the focal surface also contributes to further optimization of the combustion.
  • This second air guide not only offers the advantage that this air portion is led deep into the flame core, but also has the result that a swirl is generated in the flame, which contributes to further intensifying the mixing in the combustion chamber.
  • Fig. 1 shows a vertical section through a gas burner
  • FIG. 2 shows a section through burner glasses and Fig. 3 is a plan view of these burner glasses.
  • a gas burner 3 formed by burner glasses 4 is placed on an end edge 2 of a burner tube 1 and fastened thereon.
  • a glasses base 5 in the form of an annular surface forms the support on the front edge 2.
  • a burning surface 7 of the burner is recessed in relation to the base of the glasses, for example by at least three to twenty millimeters, for which purpose a glasses cylinder 6 connects to the base.
  • the focal surface itself has, in a known manner, a metal sieve 8 and a perforated rim 9, this perforated rim being able to form a shaped piece with the spectacle cylinder.
  • secondary air nozzles 10 are formed in a circular arrangement, the approximately rectangular nozzle openings 11 of which run approximately perpendicular to the base of the glasses and which are delimited at the top by an inclined nozzle cover 12 such that the air jet emerging from the nozzle opening unites Angular range of about
  • the flame core in the area of the free metal grid 8 is affected by the direct action
  • the secondary air penetrates directly into the burner flame at a short distance above the roots of the flame and secondly the air streams which are not concentrated on the center of the burner penetrate the flame a certain swirl effect with increased
  • the burner glasses 4 are inserted with their glasses cylinder 6 into a sleeve 17 of a mixing tube 15 for the first air. Screwing or riveting to the glasses base 5 is possible via eyelets 21 on the sleeve.
  • the mixing tube sleeve 17 is formed at the end of an injector funnel 16, which in turn continues an injector center piece 19 and has an inlet extension 20 at the other end, through which the gas flowing out of a gas nozzle 23 enters the injector together with the first air and be mixed.
  • the gas nozzle is fed through a gas supply line 24 via a valve 25, for example a solenoid valve.
  • the length ratios can also be changed in a range of up to 20%.
  • the burner tube shown cylindrically in the exemplary embodiment can of course also have a rectangular, for example square, cross section.
  • the burner tube base 26 is open for the entry of the first and second air. If the air supply is forced, for example by means of a blower, then this bottom opening is connected to it in a suitable manner.
  • a flame tube base 30 is placed on a flange ring 27, to which a flame tube 31 connects.
  • the flame tube base is expanded by an exhaust manifold 32.
  • the ignition electrodes 34 can be seen in FIG. 1 and the associated passage openings 35 in FIG. 3.

Landscapes

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

Abstract

Un brûleur à gaz, notamment pour gaz liquéfié, qui peut être incorporé dans le tube de chauffage ou le carter de la chambre de combustion d'un échangeur de chaleur pour des appareils de chauffage de locaux et analogue, comporte une tête de brûleur (3) disposée coaxialement dans le tube de chauffage (31) et pourvue d'ajutages d'air d'appoint dirigés vers la surface de combustion (1). La surface de combustion (7) du brûleur (3) est en retrait par rapport aux ajutages d'air d'appoint (10). De préférence, ces ajutages sont formés dans la base (5) d'une lunette de brûleur (4) qui peut être posée sur un tube de brûleur (1), et la surface de combustion (7) est en retrait par rapport à la base de la lunette grâce à la présence d'un cylindre de lunette (6).
EP92918371A 1991-09-05 1992-08-25 Bruleur a gaz, notamment pour gaz liquefie Expired - Lifetime EP0601018B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19914129552 DE4129552A1 (de) 1991-09-05 1991-09-05 Gasbrenner, insbesondere fuer fluessiggas
DE4129552 1991-09-05
PCT/EP1992/001952 WO1993005342A1 (fr) 1991-09-05 1992-08-25 Bruleur a gaz, notamment pour gaz liquefie

Publications (2)

Publication Number Publication Date
EP0601018A1 true EP0601018A1 (fr) 1994-06-15
EP0601018B1 EP0601018B1 (fr) 1997-11-26

Family

ID=6439936

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92918371A Expired - Lifetime EP0601018B1 (fr) 1991-09-05 1992-08-25 Bruleur a gaz, notamment pour gaz liquefie

Country Status (5)

Country Link
EP (1) EP0601018B1 (fr)
CZ (1) CZ287712B6 (fr)
DE (2) DE4129552A1 (fr)
HU (1) HU216592B (fr)
WO (1) WO1993005342A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002319942B2 (en) * 2001-07-19 2005-05-26 Lg Electronics Inc. Gas burner for dryer
GB2403792A (en) * 2003-07-08 2005-01-12 Aeromatix Ltd Gas burner for use with a cylindrical heat exchanger
DE202004015610U1 (de) * 2004-10-08 2005-02-24 Gastec Technology B.V. Gas-Brenner-Einrichtung für eine Brennmittelimitat-Feuereinrichtung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1556383A (en) * 1976-12-23 1979-11-21 Nu Way Heating Plants Ltd Burners for gaseous fuels
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
FR2589555B1 (fr) * 1985-11-06 1989-11-10 Gaz De France Bruleur a gaz a air souffle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9305342A1 *

Also Published As

Publication number Publication date
CZ50494A3 (en) 1994-08-17
HU216592B (hu) 1999-07-28
HU9400640D0 (en) 1994-07-28
HUT68877A (en) 1995-08-28
DE4129552A1 (de) 1993-03-11
WO1993005342A1 (fr) 1993-03-18
DE59209044D1 (de) 1998-01-08
EP0601018B1 (fr) 1997-11-26
CZ287712B6 (cs) 2001-01-17

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