EP0471956A2 - Brûleur - Google Patents

Brûleur Download PDF

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Publication number
EP0471956A2
EP0471956A2 EP19910110983 EP91110983A EP0471956A2 EP 0471956 A2 EP0471956 A2 EP 0471956A2 EP 19910110983 EP19910110983 EP 19910110983 EP 91110983 A EP91110983 A EP 91110983A EP 0471956 A2 EP0471956 A2 EP 0471956A2
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
burner
flame holder
tube
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
EP19910110983
Other languages
German (de)
English (en)
Other versions
EP0471956A3 (en
EP0471956B1 (fr
Inventor
Hans-Joachim Dipl.-Ing. Dittmann
Günther Dipl.-Ing. Balgar
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.)
Elster GmbH
Original Assignee
LBE Beheizungseinrichtungen 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 LBE Beheizungseinrichtungen GmbH filed Critical LBE Beheizungseinrichtungen GmbH
Priority to AT91110983T priority Critical patent/ATE94971T1/de
Publication of EP0471956A2 publication Critical patent/EP0471956A2/fr
Publication of EP0471956A3 publication Critical patent/EP0471956A3/de
Application granted granted Critical
Publication of EP0471956B1 publication Critical patent/EP0471956B1/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
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/74—Preventing flame lift-off
    • 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
    • F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
    • F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other

Definitions

  • the invention relates to a burner with a burner tube which has an end wall provided with an opening, a combustion chamber arranged in the burner tube, the downstream end of which is connected to the opening of the burner tube, a fuel lance leading into the combustion chamber and opening downstream of a flame holder, and a support member supporting the combustion chamber toward its downstream end.
  • the invention has for its object to remedy this situation and to improve the known construction in such a way that there is a simplification of the assembly and disassembly of the burner.
  • the burner according to the invention is characterized in that the flame holder is attached to the fuel lance and that between the flame holder and the combustion chamber, a latter is provided in the direction of the upstream end of the supporting lock.
  • the combustion chamber becomes part of the burner insert consisting essentially of the fuel lance and can be introduced into and removed from the burner tube in the simplest manner.
  • the construction according to the invention is particularly suitable for those burners in which at least the combustion chamber and preferably also further components consist of ceramic material. Ceramic material is susceptible to damage, so that the problem-free handling of the combustion chamber within the air duct is particularly useful here.
  • the combustion chamber carries at least one radially projecting, inwardly and upstream hollow rib in its side wall and that the flame holder is provided with a pin engaging in the hollow rib, with a circumferential opening extending from the hollow rib for receiving the pin is provided.
  • This construction enables a bayonet-type locking. The flame holder is inserted into the combustion chamber, the pin sliding along the hollow rib, to the circumferential opening extending from it. A relative rotation between the flame holder and the combustion chamber is then carried out, the pin migrating into the peripheral opening. This provides an axial locking between the flame holder and the combustion chamber.
  • the invention proposes that the circumferential opening has an upstream axial recess for engaging the pin. If the pin lies in this recess, then a slight axial displacement between the combustion chamber and the flame holder is required before rotation is possible to release the lock.
  • the arrangement will be chosen so that the hollow rib runs in the axial direction.
  • a screw-shaped arrangement is also readily possible, in which case the flame holder is already inserted into the combustion chamber to be coupled with a certain rotational movement.
  • a construction in which three hollow ribs are provided is particularly advantageous, with their outer edges forming a centering for the combustion chamber. These hollow ribs thus simultaneously take on the function of aligning the combustion chamber within the burner tube.
  • the invention proposes at least one radial bolt which is inserted through the side wall of the combustion chamber and acts on the upstream side of the flame holder.
  • This construction is characterized by its simplicity.
  • the side wall of the combustion chamber can be designed as a cylindrical body, only openings having to be provided for inserting the bolts. These are used as soon as the flame holder has been inserted into the combustion chamber. In the assembled state, a surrounding pipe can secure the head bolts against falling out.
  • a single bolt is sufficient as an abutment for the support element.
  • three headed bolts are provided and that the outer contours of their semicircular heads form a centering for the combustion chamber.
  • the head bolts simultaneously define the orientation of the combustion chamber within the burner tube.
  • the combustion chamber is preferably surrounded by an air guide tube which delimits an air channel with the burner tube and, if necessary, supports the combustion chamber laterally. It is advantageously also made of ceramic.
  • a secondary air outlet is formed, which is divided into arcuate outlet slots distributed over the circumference.
  • the burner according to the invention is characterized in that the combustion chamber is elastically braced against the flame holder by the support element. This facilitates manufacturing (tolerances) and assembly, this construction being particularly suitable for burners with integrated combustion chambers, e.g. Recuperative burner.
  • the support element is attached to a tube surrounding the fuel lance.
  • the support element can also be provided according to the invention with beveled centering shoulders for the combustion chamber, so that the centering of the combustion chamber not only takes place at the downstream end or in the central region, but also where the support element acts.
  • the construction according to the invention is particularly suitable for recuperative burners, in which case the burner tube forms the heat-transmitting inner wall of an exhaust gas duct.
  • a combustion chamber 3 is arranged within the air guide tube 2 and its downstream end projects into an opening on the end wall of the burner tube 1. This end of the combustion chamber 3 carries ribs 4, which form a centering and ensure that 3 secondary air outlets are defined between the burner tube 1 and the combustion chamber.
  • a fuel lance 6 projects into the combustion chamber 3.
  • a baffle plate or a flame holder on the fuel lance 7 attached, in such a way that the fuel lance opens downstream of the flame holder.
  • three radial pins 8 are cast, which serve to lock the combustion chamber 3.
  • the combustion chamber 3 carries three radial hollow ribs 9, which are open inwards and upstream.
  • the combustion chamber 3 is pushed onto the flame holder 7 in such a way that the pins 8 slide along in the hollow ribs 9.
  • the combustion chamber rotates, the pins 8 each migrating into a circumferential opening 10 starting from the hollow ribs 9.
  • Each circumferential opening 10 is provided with an upstream axial recess 11 for receiving the associated pin 8 in order to secure the combustion chamber 3 against unintentional rotary movements. Such rotary movements are only possible if the combustion chamber is shifted slightly upstream, so that the pins 8 come out of the recesses 11.
  • a support element 12 which supports the combustion chamber 3 in the direction of its downstream end.
  • the support element 12 is guided on the fuel lance 6 and is connected to a tube 13 surrounding the fuel lance.
  • An elastic force acts on the latter, which braces the support element 12 downstream against the combustion chamber 3.
  • Beveled centering shoulders 14 of the support element 12 help to keep the combustion chamber 3 in the center.
  • combustion chamber 3 is centered via the outer contours of the hollow ribs 9 with respect to the air guide tube 2, see in particular FIG. 2.
  • the combustion chamber forms a component of the actual burner insert and can be inserted together with this into the recuperator or pulled out of the latter.
  • the combustion chamber is attached to the burner insert outside the recuperator. Accordingly, the combustion chamber can be assembled and disassembled very gently. This advantage is particularly effective when, as is the case here, the combustion chamber 3, like the burner tube 1 and the air guide tube 2, is made of thin-walled ceramic.
  • FIGS. 3 and 4 differs from that according to FIGS. 1 and 2 by the type of locking between the combustion chamber 3 and the flame holder 7.
  • head bolts 15 are inserted through the side wall of the combustion chamber 3. They act on the upstream side of the flame holder 7 and in this way form the abutment for the elastic force exerted by the support element 12 on the combustion chamber 3.
  • the described locking of the combustion chamber relative to the flame holder represents only preferred constructions.
  • projections are conceivable on the inside of the combustion chamber, which can be passed through radial recesses of the flame holder and can be locked relative to the latter by a relative rotation by a bayonet lock.
  • Such a lock can also be secured against inadvertent rotation by axial projections or depressions.
  • the lock is not necessarily tied to the fact that Support element exerts an elastic force. Rather, rigid support is equally possible.
  • the centering itself can in principle be carried out in any manner, the engagement of the front combustion chamber end in the end wall of the burner tube being sufficient, possibly connected with the engagement of the support element in the other end of the combustion chamber. If, as an alternative or in addition, hollow ribs (whose downstream ends are generally closed) according to FIGS. 1 and 2 or head bolts according to FIGS. 3 and 4 are also provided for centering, the number is arbitrary. The position of the flame holder within the combustion chamber depends on the respective combustion conditions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Gas Burners (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
EP91110983A 1990-08-23 1991-07-03 Brûleur Expired - Lifetime EP0471956B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91110983T ATE94971T1 (de) 1990-08-23 1991-07-03 Brenner.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4026605 1990-08-23
DE4026605A DE4026605A1 (de) 1990-08-23 1990-08-23 Brenner

Publications (3)

Publication Number Publication Date
EP0471956A2 true EP0471956A2 (fr) 1992-02-26
EP0471956A3 EP0471956A3 (en) 1992-08-26
EP0471956B1 EP0471956B1 (fr) 1993-09-22

Family

ID=6412715

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91110983A Expired - Lifetime EP0471956B1 (fr) 1990-08-23 1991-07-03 Brûleur

Country Status (3)

Country Link
EP (1) EP0471956B1 (fr)
AT (1) ATE94971T1 (fr)
DE (2) DE4026605A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0646751A1 (fr) * 1993-10-01 1995-04-05 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Brûleur et utilisation d'un tel brûleur dans un four de verre
EP0561203B1 (fr) * 1992-03-17 1997-05-21 Linde Aktiengesellschaft Brûleur pour revêtir des objets

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007048487B4 (de) 2007-10-09 2009-07-30 Ibs Industrie-Brenner-Systeme Gmbh Brenner für einen Industrieofen
EP2527734A1 (fr) 2011-05-27 2012-11-28 Elster GmbH Brûleur industriel doté d'une émission de NOX réduite
DE102013106786A1 (de) * 2013-06-28 2014-12-31 Jasper Gesellschaft für Energiewirtschaft und Kybernetik mbH Heizrohr für einen Rekuperatorbrenner

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3422229C2 (de) * 1984-06-15 1986-06-05 WS Wärmeprozesstechnik GmbH, 7015 Korntal-Münchingen Industriebrenner für gasförmige oder flüssige Brennstoffe
US4705022A (en) * 1986-09-25 1987-11-10 Eclipse, Inc. Recuperative radiant tube heating system
EP0296032A1 (fr) * 1987-06-11 1988-12-21 Gaz De France Système à brûleur notamment à grande vitesse de sortie des gaz brûlés
EP0363834A1 (fr) * 1988-10-12 1990-04-18 Ruhrgas Aktiengesellschaft Brûleur, particulièrement brûleur à haute vitesse

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8905051U1 (fr) * 1988-04-28 1989-06-08 Joh. Vaillant Gmbh U. Co, 5630 Remscheid, De

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3422229C2 (de) * 1984-06-15 1986-06-05 WS Wärmeprozesstechnik GmbH, 7015 Korntal-Münchingen Industriebrenner für gasförmige oder flüssige Brennstoffe
US4705022A (en) * 1986-09-25 1987-11-10 Eclipse, Inc. Recuperative radiant tube heating system
EP0296032A1 (fr) * 1987-06-11 1988-12-21 Gaz De France Système à brûleur notamment à grande vitesse de sortie des gaz brûlés
EP0363834A1 (fr) * 1988-10-12 1990-04-18 Ruhrgas Aktiengesellschaft Brûleur, particulièrement brûleur à haute vitesse

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0561203B1 (fr) * 1992-03-17 1997-05-21 Linde Aktiengesellschaft Brûleur pour revêtir des objets
EP0646751A1 (fr) * 1993-10-01 1995-04-05 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Brûleur et utilisation d'un tel brûleur dans un four de verre
WO1995010008A1 (fr) * 1993-10-01 1995-04-13 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Bruleur et utilisation d'un tel bruleur dans un four de verre

Also Published As

Publication number Publication date
DE4026605A1 (de) 1992-02-27
EP0471956A3 (en) 1992-08-26
ATE94971T1 (de) 1993-10-15
EP0471956B1 (fr) 1993-09-22
DE59100407D1 (de) 1993-10-28

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