EP3781866B1 - Vorgemischgasbrenner - Google Patents

Vorgemischgasbrenner Download PDF

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Publication number
EP3781866B1
EP3781866B1 EP19714670.7A EP19714670A EP3781866B1 EP 3781866 B1 EP3781866 B1 EP 3781866B1 EP 19714670 A EP19714670 A EP 19714670A EP 3781866 B1 EP3781866 B1 EP 3781866B1
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EP
European Patent Office
Prior art keywords
plate structure
flange
burner deck
porous burner
porous
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.)
Active
Application number
EP19714670.7A
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English (en)
French (fr)
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EP3781866A1 (de
Inventor
Geertjan KOOITJE
Geert Folkers
Roelof BOER
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.)
Bekaert Combustion Technology BV
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Bekaert Combustion Technology BV
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Publication of EP3781866A1 publication Critical patent/EP3781866A1/de
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Publication of EP3781866B1 publication Critical patent/EP3781866B1/de
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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
    • 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
    • F23D2203/101—Flame diffusing means characterised by surface shape
    • F23D2203/1017—Flame diffusing means characterised by surface shape curved
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2212/00—Burner material specifications
    • F23D2212/20—Burner material specifications metallic
    • F23D2212/201—Fibres
    • 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
    • F23D2900/00003—Fuel or fuel-air mixtures flow distribution devices upstream of the outlet
    • 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
    • F23D2900/00012—Liquid or gas fuel burners with flames spread over a flat surface, either premix or non-premix type, e.g. "Flächenbrenner"
    • 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
    • F23D2900/00019—Outlet manufactured from knitted fibres

Definitions

  • the invention relates to the field of premix gas burners, more particularly to surface stabilized premix gas burners comprising a porous burner deck onto which the flames are stabilized.
  • Premix gas burners of which the circumference of the porous burner deck has the shape of a rectangle of which the two short sides are continuously rounded find application in a broad range of boilers and heating appliances.
  • WO2015/000869 A1 discloses a premix gas burner wherein the circumference of the porous burner deck has the shape of a rectangle of which the two short sides are continuously rounded.
  • the burner comprises a metal mounting plate, a mixing chamber, a porous burner deck and a distributor.
  • the porous burner deck encloses the mixing chamber. Combustion of premix gas occurs on the porous burner deck after premix gas has flown from the mixing chamber through the porous burner deck.
  • a distributor is provided in the mixing chamber for flow of the premix gas through the perforations of the distributor before the premix gas flows through the porous burner deck.
  • WO2018/050578A1 discloses a premix gas burner comprising a metal mounting plate; a mixing chamber; a porous burner deck enclosing the mixing chamber and onto which combustion is stabilized after premix gas has flown from the mixing chamber through the porous burner deck; and a plate structure comprising a plurality of perforations.
  • the plate structure is provided in the mixing chamber for flow of premix gas through the perforations of the plate structure before the premix gas flows through the porous burner deck.
  • the plate structure comprises a convex shape.
  • the circumference of the porous burner deck has the shape of a rectangle of which the two short sides have been rounded.
  • the plate structure has along its length an elongated section and two end caps, wherein each of the end caps is provided at an end of the elongated section.
  • WO2018/050310A1 discloses a premix gas burner comprising a metal mounting plate, a burner deck and a metal plate structure.
  • the metal mounting plate has a plain section for mounting the burner in a heating appliance.
  • the burner deck comprises a woven wire mesh onto which the flames are stabilized when the burner is in use. At least part of the metal plate structure is perforated for the premix gas to flow through the perforations before the premix gas flows through the woven wire mesh.
  • the metal mounting plate has an opening.
  • the woven wire mesh is inserted through the opening of the metal mounting plate.
  • the woven wire mesh is bent, such that a flange parallel with the plain section of the metal mounting plate is provided.
  • the flange is held between the metal mounting plate and the metal plate structure such that play is present of the flange relative to the metal mounting plate and relative to the metal plate structure.
  • the first aspect of the invention is a premix gas burner comprising a metal mounting plate, a mixing chamber, a porous burner deck and a plate structure.
  • the porous burner deck encloses the mixing chamber. In use of the burner, combustion is stabilized on the porous burner deck after premix gas has flown from the mixing chamber through the porous burner deck.
  • the plate structure comprises a plurality of perforations.
  • the plate structure is provided in the mixing chamber for flow of premix gas through the perforations of the plate structure before the premix gas flows through the porous burner deck.
  • the plate structure comprises a convex shape.
  • the circumference of the porous burner deck has the shape of a rectangle of which the two short sides have been - preferably continuously - rounded.
  • the plate structure has along its length an elongated section - preferably having constant cross section - and two end caps. Each of the end caps is provided at an end of the elongated section.
  • the plate structure is provided via cutting and folding of a metal plate into the convex shape of the plate structure.
  • the elongated section of the plate structure comprises at least one groove created by deep drawing.
  • the at least one groove is provided on the crest line of the plate structure.
  • the at least one groove is convex in the same direction as the plate structure.
  • two edges of the metal plate join parallel to the length direction of the elongated section in order to form the end caps.
  • the plate structure is symmetrical with respect to the plane vertical to the plate structure at the crest line of the plate structure.
  • the metal mounting plate, the porous burner deck and the plate structure are produced in separate manufacturing operations before these three parts are assembled into the burner.
  • the deepdrawing operation in the manufacturing process of the plate structure - performed to make and shape the groove after cutting and folding the metal plate into the convex shape of the plate structure - allows to control that the two edges of the metal plate are positioned in a controlled way in the end cap.
  • This way, slits in the end caps can be controlled in size.
  • the invention provides a premix gas burner that can be manufactured to much better controlled dimensional tolerances.
  • the benefit is that differences in functional operation of such premix gas burners is drastically reduced.
  • control of the slit size in the end caps is important, as an excessive width of the slits could cause flashback of the flames.
  • the depth of the at least one groove is more than 0.3 mm; preferably more than 0.5 mm, preferably less than 1 mm; and preferably less than 1.5 mm.
  • Such embodiments provide better controlled dimensional tolerances between the edges of the metal plate in the end caps.
  • the plate structure comprises open ended slits, one in each of the two end caps.
  • Each of the open ended slits ends at one of the short sides of the circumference of the porous burner deck.
  • the open ended slits are provided in the end caps between the two edges of the metal plate that join parallel to the length direction of the elongated section.
  • Each of the open ended slits is parallel with the length direction of the circumference of the porous burner deck.
  • the width of the slit is less than 0.6 mm, more preferably less than 0.5 mm, even more preferably less than 0.4 mm.
  • the elongated section of the plate structures comprises at least two grooves created by deep drawing.
  • the at least two grooves are provided on the crest line of the plate structure.
  • the at least two grooves are convex in the same direction as the plate structure.
  • the at least two grooves are provided in-line with each other.
  • the metal mounting plate has a plain section for mounting the burner in a heating appliance.
  • the porous burner deck is provided in a convex shape. More preferably, the porous burner deck is provided in a convex shape over the full surface of the porous burner deck provided for stabilizing the flames.
  • the metal mounting plate comprises an opening.
  • the porous burner deck is inserted through the opening of the metal mounting plate.
  • the plate structure is inserted in the burner through the opening in the metal mounting plate, after the porous burner deck has been inserted through the opening in the metal mounting plate.
  • the porous burner deck is a woven metal wire mesh.
  • the woven wire mesh has a thickness between 0.6 and 1.3 mm.
  • a woven wire mesh of 0.9 mm thickness can be advantageously used in the invention.
  • the porous burner deck is provided by a woven, knitted or braided fabric comprising metal fibers. More preferably, the porous burner deck is provided by a woven, knitted or braided fabric comprising yarns. The yarns comprise in their cross section a plurality of metal fibers.
  • the porous burner deck has a double curved surface.
  • a surface is at a point on it double curved, there is at that point no direction in which the radius of curvature at that point is infinite.
  • a cylindrical burner is a burner that has a single curved surface, not a double curved surface.
  • the metal mounting plate surrounds the complete porous burner deck.
  • the porous burner deck is bent such that a flange is formed at its circumference. More preferably the flange of the porous burner deck is along the circumference of the porous burner deck split in a plurality of flange segments. Even more preferred, the flange is only provided to the porous burner deck along the long sides of the rectangular circumference of the porous burner deck: it is meant that the porous burner deck does not comprise flanges along the two - preferably continuously - rounded short sides of the rectangular circumference of the porous burner deck.
  • the bend angle providing the flange of the porous burner deck is preferably at least 90°.
  • the flange of the porous burner deck is held between the metal mounting plate and the plate structure. More preferably the flange of the porous burner deck is held between the metal mounting plate and the plate structure such that the flange of the porous burner deck is held with play between the metal mounting plate and the plate structure.
  • the plate structure is firmly attached to the metal mounting plate. It is meant that there is no play between the plate structure and the metal mounting plate. More preferably, the plate structure is firmly attached to the metal mounting plate only along the long sides of the rectangular cross section of the burner deck. In more preferred embodiments, the plate structure is firmly attached to the metal mounting plate by clamping. In other more preferred embodiments, the plate structure is firmly attached to the metal mounting plate by welds.
  • the metal mounting plate comprises a plurality of lips. More preferably lips are only provided along the long sides of the rectangular circumference of the porous burner deck. The lips are folded over in order to clamp the plate structure firmly to the metal mounting plate; preferably in such way that the flange of the porous burner deck is held with play between the metal mounting plate and the plate structure.
  • a flange is provided on the plate structure. More preferably, the flange of the plate structure is along the circumference of the plate structure split in a plurality of flange segments.
  • the flange of the porous burner deck is held between the metal mounting plate and the flange of the plate structure.
  • the flange of the porous burner deck is held between the metal mounting plate and the flange of the plate structure such that the flange of the porous burner deck is held with play between the metal mounting plate and the plate structure.
  • the metal mounting plate comprises upstanding ridges providing supporting elements onto which the plate structure is clamped by the metal mounting plate. More preferably, the upstanding ridges of the metal mounting plate fit into notches in the flange of the porous burner deck; such that the flange of the porous burner deck is held with play between the metal mounting plate and the plate structure.
  • Embodiments wherein the porous burner deck - e.g. via its flange - is held with play between the metal mounting plate and the plate structure have the benefit that the burner deck can expand when hot when the burner is in use.
  • the benefit of such embodiments is that a burner with long lifetime is provided.
  • all zones of the plate structure provided with perforations are provided at a distance from the porous burner deck. It is meant that no perforation makes contact with the porous burner deck, but that the perforations are positioned at a distance from the porous burner deck.
  • the second aspect of the invention is a condensing boiler comprising a premix gas burner as in any embodiment of the first aspect of the invention.
  • the condensing boiler comprises a cast aluminium heat exchanger.
  • Figures 1 - 7 show in combination an example of a gas premix burner according to the invention.
  • Figure 1 shows a top view 100 of a gas premix burner according to the invention.
  • Figure 2 shows a bottom view 200 of the burner of figure 1 .
  • Figure 3 shows a view on the burner along II - II of figure 2 .
  • Figure 4 shows the woven wire mesh forming the porous burner deck of the burner of figure 1 .
  • Figure 5 shows the metal mounting plate 102 of the burner of figure 1 before its assembly in the burner.
  • Figure 6 shows the plate structure 104 of the burner of figure 1 before it is shaped.
  • Figure 7 shows the shaped plate structure 106 as included in the burner of figure 1 .
  • the premix gas burner comprises a metal mounting plate 102, a mixing chamber 108, a porous burner deck 110 and a plate structure 106.
  • the porous burner deck is a woven metal wire mesh, e.g. 0.9 mm thick.
  • the circumference of the porous burner deck has the shape of a rectangle of which the two short sides have been continuously rounded.
  • the metal mounting plate comprises an opening.
  • the woven wire mesh burner deck is inserted through the opening of the metal mounting plate.
  • the plate structure 106 is inserted through the opening of the metal mounting plate after the woven wire mesh burner deck has been inserted through the opening of the metal mounting plate.
  • the plate structure 106 comprises a plurality of perforations 112; and is provided in the mixing chamber for flow of premix gas through the perforations of the plate structure before the premix gas flows through the porous burner deck.
  • the plate structure has along its length an elongated section 131 and two end caps 133. Each of the end caps is provided at an end of the elongated section.
  • the plate structure is provided via cutting and folding a metal plate, followed by a deep drawing operation to form groove 135.
  • the elongated section of the plate structure comprises at least one groove 135 created by deep drawing after cutting and folding the metal plate.
  • the groove 135 is provided on the crest line of the plate structure.
  • the groove is convex in the same direction as the plate structure.
  • the depth of the groove 135 is 0.7 mm.
  • two edges 137 of the metal plate join parallel to the length direction of the elongated section in order to form the end caps.
  • the plate structure is symmetrical with respect to the plane vertical to the plate structure at the crest line of the plate structure.
  • Figure 6 shows the flat metal plate structure 104 after cutting it from a metal plate and before folding it.
  • Figure 7 shows the shaped plate structure 106 after folding it and after the deep drawing operation to form groove 135.
  • Figure 7 shows the shaped plate structure as it is assembled in the burner of figure 1 .
  • the plate structure comprises an open ended slit 114 ending at each of the two short sides of the circumference of the porous burner deck.
  • the open ended slits 114 are provided in the end caps between the two edges 137 of the metal plate that join parallel to the length direction of the elongated section.
  • Each of the open ended slits ending at the two short sides is parallel with the length direction of the circumference of the porous burner deck.
  • the two open ended slits are a consequence of way the plate structure is produced, by folding the flat structure of figure 6 into the shaped structure of figure 7 .
  • the open ended slit has a width of 0.2 mm.
  • all zones of the plate structure provided with perforations 112 are provided at a distance from the porous burner deck.
  • the porous burner deck is bent such that a flange (122)
  • the bent angle providing the flange of the porous burner deck is more than 90°.
  • the flange 122 is held in the burner between the metal mounting plate and the plate structure.
  • flange segments on the porous burner deck are only provided along the long sides of the rectangular circumference of the porous burner deck. No flange is provided on the porous burner deck along the short sides of the rectangular circumference of the porous burner deck.
  • the flange of the porous burner deck is held between the metal mounting plate and the plate structure; such that the flange of the porous burner deck is held with play between the metal mounting plate and the plate structure.
  • the metal mounting plate comprises a plurality of lips 116.
  • the exemplary burner lips are only provided along the long sides of the rectangular circumference of the porous burner deck. The lips are folded over in order to clamp the plate structure firmly to the metal mounting plate.
  • Figure 5 shows the metal mounting plate, with the lips 116, before assembly in the burner. The lips 116 are folded towards the inside of the burner during assembly of the burner.
  • the plate structure comprises at its circumference a plurality of notches 118 provided in a flange 120 at the circumference of the plate structure.
  • the notches split the flange in a plurality of flange segments along the circumference of the plate structure.
  • the notches 118 in the flange 120 of the plate structure are positioned around the lips 116 in the metal mounting plate. This way, the plate structure is correctly positioned in the burner.
  • the metal mounting plate comprises upstanding ridges 126 providing supporting elements onto which the plate structure is clamped by the metal mounting plate, more specifically by the folded lips of the metal mounting plate.
  • the lips 116 clamp the flange segments of the plate structure onto the upstanding ridges 126; this way the plate structure is firmly clamped onto the metal mounting plate.
  • the arrangement is such that only clamping (only lips folded over to act as clamps) is provided along the long sides of the rectangular cross section (with continuously rounded short sides) of the porous burner deck. Such arrangement facilitates the manufacturing operation.
  • the upstanding ridges 126 of the metal mounting plate fit into notches 124 in the flange of the porous burner deck.
  • the height of the upstanding ridges 126 determines the space between the metal mounting plate and the metal plate structure. This distance is selected to be larger than the thickness of the woven wire mesh burner deck, such that the flange segments are present between the metal mounting plate and the metal plate structure such that play is present between the flange segments on the one hand; and the metal mounting plate and the plate structure on the other hand. This way, the burner deck can efficiently cope with thermal expansion and contraction.

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

Claims (15)

  1. Vorgemischgasbrenner, der Folgendes umfasst:
    - eine metallische Montageplatte (102);
    - eine Mischkammer (108);
    - ein poröses Brennerdeck (110), das die Mischkammer einschließt und auf dem die Verbrennung stabilisiert wird, nachdem Vorgemischgas von der Mischkammer durch das poröse Brennerdeck geströmt ist; und
    - eine Plattenstruktur (106), umfassend mehrere Perforationen (112), wobei die Plattenstruktur in der Mischkammer bereitgestellt ist für eine Strömung von Vorgemischgas durch die Perforationen der Plattenstruktur, bevor das Vorgemischgas durch das poröse Brennerdeck strömt;
    wobei die Plattenstruktur eine konvexe Form umfasst;
    wobei der Umfang des porösen Brennerdecks die Form eines Rechtecks hat, dessen zwei kurze Seiten gerundet wurden;
    wobei die Plattenstruktur entlang ihrer Länge einen länglichen Abschnitt (131) und zwei Endkappen (133) aufweist, wobei jede der Endkappen an einem Ende des länglichen Abschnitts bereitgestellt ist;
    dadurch gekennzeichnet, dass die Plattenstruktur über Schneiden und Falten einer Metallplatte in die konvexe Form der Plattenstruktur bereitgestellt wird; wobei der längliche Abschnitt der Plattenstruktur zumindest eine durch Tiefziehen erzeugte Nut (135) umfasst, wobei die zumindest eine Nut an der Scheitellinie der Plattenstruktur bereitgestellt ist; und wobei die zumindest eine Nut in der gleichen Richtung wie die Plattenstruktur konvex ist;
    wobei sich in jeder der zwei Endkappen zwei Kanten (137) der Metallplatte parallel zur Längsrichtung des länglichen Abschnitts verbinden, um die Endkappen zu bilden.
  2. Vorgemischgasbrenner nach Anspruch 1, wobei die Tiefe der zumindest einen Nut (135) mehr als 0,3 mm ist; vorzugsweise mehr als 0,5 mm ist; vorzugsweise weniger als 1 mm ist; und vorzugsweise weniger als 1,5 mm ist.
  3. Vorgemischgasbrenner nach einem der vorhergehenden Ansprüche, wobei die Plattenstruktur Schlitze mit offenem Ende (114) umfasst; wobei jeder der Schlitze mit offenem Ende an einer der kurzen Seiten des Umfangs des porösen Brennerdecks endet;
    wobei die Schlitze mit offenem Ende in den Endkappen zwischen den zwei Kanten der Metallplatte bereitgestellt sind, die sich parallel zur Längsrichtung des länglichen Abschnitts verbinden; und
    wobei jeder der Schlitze mit offenem Ende parallel zur Längsrichtung des Umfangs des porösen Brennerdecks ist.
  4. Vorgemischgasbrenner nach einem der vorhergehenden Ansprüche, wobei der längliche Abschnitt der Plattenstrukturen mindestens zwei durch Tiefziehen erzeugte Nuten umfasst, wobei die mindestens zwei Nuten an der Scheitellinie der Plattenstruktur bereitgestellt sind, wobei die mindestens zwei Nuten in der gleichen Richtung wie die Plattenstruktur konvex sind, und wobei die mindestens zwei Nuten miteinander in einer Linie bereitgestellt sind.
  5. Vorgemischgasbrenner nach einem der vorhergehenden Ansprüche, wobei das poröse Brennerdeck (110) in einer konvexen Form bereitgestellt ist; wobei vorzugsweise das poröse Brennerdeck in einer konvexen Form über der vollständigen Oberfläche des porösen Brennerdecks bereitgestellt ist, bereitgestellt zum Stabilisieren der Flammen.
  6. Vorgemischgasbrenner nach einem der vorhergehenden Ansprüche,
    wobei die metallische Montageplatte eine Öffnung umfasst;
    wobei das poröse Brennerdeck durch die Öffnung der metallischen Montageplatte eingeführt wird.
  7. Vorgemischgasbrenner nach einem der vorhergehenden Ansprüche;
    wobei das poröse Brennerdeck ein gewebtes Metalldrahtgeflecht ist; oder
    wobei das poröse Brennerdeck durch ein gewebtes, gewirktes oder geflochtenes Gewebe, das Metallfasern umfasst, bereitgestellt ist.
  8. Vorgemischgasbrenner nach einem der vorhergehenden Ansprüche,
    wobei das poröse Brennerdeck so gebogen ist, dass ein Flansch (122) an seinem Umfang gebildet wird;
    wobei vorzugsweise der Flansch des porösen Brennerdecks entlang des Umfangs des porösen Brennerdecks in mehrere Flanschsegmente aufgeteilt ist.
  9. Vorgemischgasbrenner nach Anspruch 8; wobei der Flansch des porösen Brennerdecks nur entlang der langen Seiten des rechteckigen Umfangs des porösen Brennerdecks bereitgestellt ist.
  10. Vorgemischgasbrenner nach Anspruch 8 oder 9;
    wobei der Flansch (122) des porösen Brennerdecks zwischen der metallischen Montageplatte und der Plattenstruktur gehalten wird; vorzugsweise so, dass der Flansch des Brennerdecks mit Spiel zwischen der metallischen Montageplatte und der Plattenstruktur gehalten wird.
  11. Vorgemischgasbrenner nach einem der Ansprüche 8 - 10;
    wobei die metallische Montageplatte mehrere Lippen (116) umfasst - vorzugsweise nur entlang der langen Seiten des rechteckigen Umfangs des porösen Brennerdecks;
    wobei die Lippen umgeschlagen werden, um die Plattenstruktur fest an der metallischen Montageplatte anzuklemmen;
    vorzugsweise so, dass der Flansch des porösen Brennerdecks mit Spiel zwischen der metallischen Montageplatte und der Plattenstruktur gehalten wird.
  12. Vorgemischgasbrenner nach einem der Ansprüche 8 - 11;
    wobei ein Flansch (120) an der Plattenstruktur bereitgestellt ist - wobei vorzugsweise der Flansch der Plattenstruktur entlang des Umfangs der Plattenstruktur auf mehrere Flanschsegmente aufgeteilt ist;
    wobei der Flansch (122) des porösen Brennerdecks (110) zwischen der metallischen Montageplatte und dem Flansch (120) der Plattenstruktur gehalten wird;
    vorzugsweise so, dass der Flansch des porösen Brennerdecks mit Spiel zwischen der metallischen Montageplatte und der Plattenstruktur gehalten wird.
  13. Vorgemischgasbrenner nach einem der vorhergehenden Ansprüche;
    wobei die metallische Montageplatte aufrecht stehende Vorsprünge (126) umfasst, die Elemente unterstützen, an denen die Plattenstruktur durch die metallische Montageplatte angeklemmt wird.
  14. Vorgemischgasbrenner nach einem der vorhergehenden Ansprüche 8 - 12 sowie nach Anspruch 13;
    wobei die aufrecht stehenden Vorsprünge (126) der metallischen Montageplatte in Kerben (118) im Flansch des porösen Brennerdecks passen; sodass der Flansch des porösen Brennerdecks mit Spiel zwischen der metallischen Montageplatte und der Plattenstruktur gehalten wird.
  15. Kondensationskessel, umfassend einen Vorgemischgasbrenner nach einem der vorhergehenden Ansprüche.
EP19714670.7A 2018-04-19 2019-04-03 Vorgemischgasbrenner Active EP3781866B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18168254 2018-04-19
PCT/EP2019/058362 WO2019201600A1 (en) 2018-04-19 2019-04-03 Premix gas burner

Publications (2)

Publication Number Publication Date
EP3781866A1 EP3781866A1 (de) 2021-02-24
EP3781866B1 true EP3781866B1 (de) 2022-05-04

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EP19714670.7A Active EP3781866B1 (de) 2018-04-19 2019-04-03 Vorgemischgasbrenner

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Country Link
EP (1) EP3781866B1 (de)
CN (1) CN112567176B (de)
WO (1) WO2019201600A1 (de)

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US5520536A (en) * 1995-05-05 1996-05-28 Burner Systems International, Inc. Premixed gas burner
NL1003311C2 (nl) * 1996-06-10 1997-12-17 Radson Alutherm Nv Vlamverdeelinrichting bestemd voor een brander van een warmwatertoestel.
DE19749150A1 (de) * 1997-11-06 1999-05-27 Bosch Gmbh Robert Gebläsebrenner
IT1406865B1 (it) * 2011-01-12 2014-03-14 Worgas Bruciatori Srl Bruciatore ad elevata stabilita' perimetrale
US20160123580A1 (en) 2013-07-02 2016-05-05 Bekaert Combustion Technology B.V. Gas premix burner
EP3064831A1 (de) * 2015-02-16 2016-09-07 Worgas Bruciatori S.r.l. Gasbrenner für ein heizgerät
US20170122555A1 (en) * 2015-11-03 2017-05-04 Eco-Burner Products Ltd Modified burner module
CN109716023B (zh) 2016-09-13 2021-06-18 贝卡尔特燃烧技术股份有限公司 预混气体燃烧器

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WO2019201600A1 (en) 2019-10-24
CN112567176B (zh) 2023-03-07
EP3781866A1 (de) 2021-02-24
CN112567176A (zh) 2021-03-26

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