EP0864813B1 - Brûleur à gaz - Google Patents

Brûleur à gaz Download PDF

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Publication number
EP0864813B1
EP0864813B1 EP98200735A EP98200735A EP0864813B1 EP 0864813 B1 EP0864813 B1 EP 0864813B1 EP 98200735 A EP98200735 A EP 98200735A EP 98200735 A EP98200735 A EP 98200735A EP 0864813 B1 EP0864813 B1 EP 0864813B1
Authority
EP
European Patent Office
Prior art keywords
burner
burner body
gas
plate
reference plane
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
EP98200735A
Other languages
German (de)
English (en)
Other versions
EP0864813A1 (fr
Inventor
Gerard Westendorp
Hendrik Jacob Lammert Wierenga
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.)
Nefit Buderus BV
Original Assignee
Nefit Buderus BV
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 Nefit Buderus BV filed Critical Nefit Buderus BV
Publication of EP0864813A1 publication Critical patent/EP0864813A1/fr
Application granted granted Critical
Publication of EP0864813B1 publication Critical patent/EP0864813B1/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
    • F23D14/46—Details, e.g. noise reduction means
    • 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
    • F23D14/14—Radiant burners using screens or perforated plates
    • F23D14/145—Radiant burners using screens or perforated plates combustion being stabilised at a screen or a perforated plate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/102—Flame diffusing means using perforated plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2210/00—Noise abatement
    • 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
    • F23D2900/00003—Fuel or fuel-air mixtures flow distribution devices upstream of the outlet

Definitions

  • the invention relates to a burner for gaseous Fuels comprising one from at least one plate-shaped part existing burner body with a Flow direction of the gas-air mixture upstream Inflow surface, a downstream outflow surface and between them passages, of at least a number of those in the inflow surface lying mouths of the passage channels the respective Distances to an upstream thereof perforated reference plane are unequal.
  • a burner for gaseous Fuels comprising one from at least one plate-shaped part existing burner body with a Flow direction of the gas-air mixture upstream Inflow surface, a downstream outflow surface and between them passages, of at least a number of those in the inflow surface lying mouths of the passage channels the respective Distances to an upstream thereof perforated reference plane are unequal.
  • Such burners are known per se from EP-A-0 602 831.
  • the burner body mostly made of a heat-resistant ceramic material.
  • a number of the torch bodies shown in EP-A-0 602 831 is simply curved.
  • a periodic Function is defined here like a curve with a Repeatedly occurring function value and course, transverse to Gas mixture flow direction seen.
  • the distance variation preferably fulfills in one dimension of the burner body transverse to the gas mixture flow direction at least one period of the periodic function, the is preferably a sine function. Another variation according to several functions is possible.
  • a burner body is used a flat inflow surface, and is the Reference plane is a perforated plate that is in one dimension transverse to the gas mixture flow direction runs.
  • the reference plane is a substantially flat, perforated Plate is while the inflow surface of the burner body in a dimension transverse to the flow direction of the flammable gas-air mixture is undulating.
  • This flat plate can be the conventional distribution plate.
  • the request for protection extends to one in the Claims 7 and 8 defined gas burners.
  • the figures show a design in which the burner body is substantially plate-shaped; however is also one Configuration possible in which the torch body in the cut is circular or C-shaped, or another Configuration.
  • Fig. 1 shows in longitudinal section and schematically a part a plate-shaped burner body 2 with a Inflow surface 4, and an outflow surface 6 with between them channels 8, the one in the flow direction 10 combustible gas-air mixture that has an upstream the burner body 2 arranged distributor plate 12 with Perforations 14 flow, run. Form during operation there are flames 16 on the side of the outflow surface 6.
  • a such a structure with burner body 2 and distributor plate 10 is known per se and has those mentioned above disadvantages described.
  • a perforated plate 18 corrugated in a single direction is arranged upstream of the inflow surface 4, which forms the reference plane mentioned in the claims.
  • the distance of its mouth 8'a, indicated by d 1 is different from the distance d 2 between the mouth 8'b of this surface.
  • the corrugations in the plate follow a sine function; its zero line is indicated by 20, the period by P and the peak-to-peak amplitude by A. Values for these sizes chosen for practical training are given at the end of this description.
  • Fig. 2 shows in perspective how the invention Practical measures can be implemented in a simple manner can.
  • the burner body 2 is in a housing 22 arranged; the outflow surface of the burner body 2 forms the surface of this housing.
  • the bottom of the housing is covered by the plate 12 formed, and a corrugated, perforated metal plate 24, which forms the reference plane 18 in Fig. 1 is between Burner body 2 and distributor plate 12 arranged.
  • This corrugated plate 24 can also be as obvious will form the bottom of the case, the plate 12 is then omitted.
  • FIG. 3 shows how the proposed according to the invention Measures without extensive modifications in one already existing construction can be realized. More in particular, Fig. 3 shows a detail of one from the applicant Manufactured and placed on the market from Type "Ecomline".
  • the combustible gas-air mixture fed through the feed pipe 30 and flows then in the direction of arrow 32 to the burner unit 34, with, seen in the direction of flow 32, one after the other Distribution plate 36 (comparable to distribution plate 12 in FIG. 2) and the perforated ceramic burner body 38 (comparable to the burner body 6 in FIG. 2, or 1).
  • corrugated and perforated plate 40 without significant change in construction between the Distributor plate 36 and the burner body 38 are arranged become; practice has shown that this in itself is very simple measure to a surprising and substantial Acceptance of that produced by the burner during operation Noise leads. Easy attachment of the burner 34 on the boiler structure 42 with the insertion of the Sealing profiles 44 make the burner 34 easily accessible.
  • the degree of perforation of the distribution plate 36 was 4% and that of the perforated plate was 40.50% with a substantially regular perforation pattern.
  • the outflow surface 52 of the burner body 50 is a flat plane
  • the inflow surface 54 is designed to be corrugated in a direction transverse to the inflow direction of the combustible gas-air mixture, which also has the effect here that the respective distances of the mouths of the adjacent through-channels 58 which run between the inflow surface 54 and the outflow surface 52 are different.
  • the distance is given for channel 58a with d 3 and for channel 58b with d 4 .
  • the perforated reference plane 60 is formed here by the conventional distributor plate.

Landscapes

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

Claims (8)

  1. Brûleur à combustibles gazeux, comportant un corps (2) de brûleur constitué d'au moins une partie en forme de plaque avec une surface d'afflux (4) située en amont dans le sens de circulation du mélange gaz-air, une surface de refoulement (6) située en aval, et des canaux de passage (8) s'étendant entre ces dernières, les distances respectives (d1, d2) par rapport à un plan de référence perforé (18) situé en amont d'un nombre au moins de débouchés (8'a, 8'b) des canaux de passage (8) situés dans la surface d'afflux (4) étant inégales, caractérisé en ce que la variation de distance entre lesdits débouchés (8'a, 8'b) et le plan de référence (18) remplit au moins une fonction périodique dans une direction transversale au sens de circulation du mélange gazeux.
  2. Brûleur selon la revendication 1, caractérisé en ce que la variation de distance entre lesdits débouchés (8'a, 8'b) et le plan de référence (18) remplit au moins une période de la fonction périodique dans une direction transversale au sens de circulation du mélange gazeux.
  3. Brûleur selon la revendication 1 ou 2, caractérisé en ce que la fonction est une fonction sinus.
  4. Brûleur selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la surface d'afflux (4) est un plan sensiblement plat, et en ce que, dans une dimension transversale au sens de circulation du mélange gazeux, le plan de référence (18) s'étend en forme d'ondulations.
  5. Brûleur selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le plan de référence (60) est un plan sensiblement plat, et en ce que, dans une dimension transversale au sens de circulation du mélange gaz-air, la surface d'afflux (54) du corps (50) de brûleur s'étend en forme d'ondulations.
  6. Brûleur selon la revendication 5, caractérisé en ce que le plan de référence (60) est la plaque de répartition classique.
  7. Brûleur à combustibles gazeux, comportant un corps (2) de brûleur en forme de plaque avec une surface d'afflux (4), une surface de refoulement (6), et des canaux de passage (8) s'étendant entre ces dernières pour le mélange combustible gaz-air, lequel corps de brûleur est disposé dans la face avant d'un boítier (22), dont la face arrière est constituée d'une plaque de répartition perforée (12) sensiblement plate à laquelle afflue le mélange combustible gaz-air, caractérisé par une plaque intermédiaire perforée (24), qui est ondulée dans une dimension transversale au sens de circulation du mélange gaz-air, et qui est disposée entre la surface d'afflux (4) sensiblement plate du corps (2) de brûleur d'une part, et la plaque de répartition (12) d'autre part.
  8. Brûleur selon la revendication 7, caractérisé en ce que, avec un rapport de côtés du corps (2) de brûleur de l'ordre de 2,5 et une plaque intermédiaire perforée (24) comportant des ondulations sinusoïdales s'étendant transversalement à la direction longitudinale du corps de brûleur, la longueur d'une onde sinusoïdale entière individuelle se situe entre 0,1 et 0,2 fois la longueur du corps (2) de brûleur, et l'amplitude de crête à crête d'une onde sinusoïdale entière individuelle entre 0,02 et 0,04 fois la longueur du corps (2) de brûleur.
EP98200735A 1997-03-11 1998-03-09 Brûleur à gaz Expired - Lifetime EP0864813B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1005494A NL1005494C2 (nl) 1997-03-11 1997-03-11 Gasbrander.
NL1005494 1997-03-11

Publications (2)

Publication Number Publication Date
EP0864813A1 EP0864813A1 (fr) 1998-09-16
EP0864813B1 true EP0864813B1 (fr) 2003-02-19

Family

ID=19764573

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98200735A Expired - Lifetime EP0864813B1 (fr) 1997-03-11 1998-03-09 Brûleur à gaz

Country Status (2)

Country Link
EP (1) EP0864813B1 (fr)
NL (1) NL1005494C2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19958580A1 (de) * 1999-12-04 2001-06-21 Krieger Gmbh & Co Kg Gasbeheizter Infrarot-Strahler für eine Infrarot-Trocknungseinheit
GB2404008A (en) * 2003-07-16 2005-01-19 Aeromatix Ltd A burner including a ceramic burner head and an associated baffle
ES2293768B1 (es) * 2005-04-11 2009-03-16 Jose Maria Vergara Uranga Cuerpo de caldeo polivalente.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8005891U1 (de) * 1980-03-01 1981-10-01 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Mit einem gasluftgemisch gespeister vormischbrenner geringer schalleistung
DE8605654U1 (de) * 1986-03-01 1987-07-02 Ruhrgas Ag, 4300 Essen Brenner für gasförmige Brennstoffe
EP0309838B1 (fr) * 1987-09-26 1992-03-04 Ruhrgas Aktiengesellschaft Brûleur à gaz
JP2664010B2 (ja) * 1992-12-14 1997-10-15 リンナイ株式会社 燃焼プレート
NL9301845A (nl) * 1993-10-26 1995-05-16 Nederlandse Gasunie Nv Brander voor gasvormige brandstof.
DE69503581T2 (de) * 1994-08-26 1999-01-14 Caradon Ideal Ltd Gasbrenner

Also Published As

Publication number Publication date
NL1005494C2 (nl) 1998-09-14
EP0864813A1 (fr) 1998-09-16

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