WO1995026485A1 - Dispositif pour chaudieres - Google Patents

Dispositif pour chaudieres Download PDF

Info

Publication number
WO1995026485A1
WO1995026485A1 PCT/SE1995/000331 SE9500331W WO9526485A1 WO 1995026485 A1 WO1995026485 A1 WO 1995026485A1 SE 9500331 W SE9500331 W SE 9500331W WO 9526485 A1 WO9526485 A1 WO 9526485A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
air
combustion
rotation
secondary air
Prior art date
Application number
PCT/SE1995/000331
Other languages
English (en)
Inventor
Kaj-Ragnar Loqvist
Original Assignee
Wave Energy Development I Västmanland Ab
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 Wave Energy Development I Västmanland Ab filed Critical Wave Energy Development I Västmanland Ab
Priority to DE19581592T priority Critical patent/DE19581592T1/de
Publication of WO1995026485A1 publication Critical patent/WO1995026485A1/fr
Priority to DK106696A priority patent/DK106696A/da
Priority to NO964148A priority patent/NO964148L/no

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C7/00—Combustion apparatus characterised by arrangements for air supply
    • F23C7/02—Disposition of air supply not passing through burner
    • F23C7/06—Disposition of air supply not passing through burner for heating the incoming air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • F23C9/006—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber the recirculation taking place in the combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M9/00—Baffles or deflectors for air or combustion products; Flame shields
    • F23M9/06—Baffles or deflectors for air or combustion products; Flame shields in fire-boxes

Definitions

  • This invention relates to a device for oil or gas fuel boilers of the kind that comprise a tube inside which the combustion takes place.
  • Such devices are known for example from SE-A-457,749, DE-C-3,017,050 and DE-A-3,232,971. As compared with combustion directly in a combustion chamber with cooled walls, the combustion will be much better in a tube of this kind.
  • the device on the figure comprises a tube 1 that suitably can be a ceramic tube. It can also be made of a heat
  • This tube stands on two feet so adapted as to make the tube coaxial with an oil burner 66 that is mounted in the wall of a non-illustrated boiler in the conventional way.
  • the tube 1 is thus freely standing in the cooled combustion chamber of the boiler.
  • Inside the tube 1 there is a shorter tube 61 that can be a tube of a metal alloy that can withstand high temperatures, for example a nickel based alloy.
  • This inner tube 61 is centered in the outer tube by means of screw-formed ridges 70 in the outer tube.
  • the ridges 70 make a number of screw- formed channels of the slot between the tubes and the ridges may continue as turbulence making means 6 outside the mouth of the inner tube 62.
  • a reflector 2, suitably of a ceramic, stands centered against the outlet of the tube 1.
  • the reflector 2 can have turbulence creating means 4, for example buttons or ridges. The reflector will be heated and will reflect the heat back to the flame, which further improves the
  • the secondary air is not only fresh air from the oil burner but also consists of hot fumes.
  • the secondary air can suitably comprise of mostly hot fumes.
  • the fresh air can alternatively be supplied through channels that lead to the slot 62. Since the combustion takes place in the inner tube 61, the secondary air will be preheated even more. In contrast to cold secondary air, hot secondary air will mix easily with the flame. The rotation and the turbulence caused by the ridges 6 in the slot 62 will promote this mixture even more if the rotation of the secondary air is counter to the rotation of the flame. Also the part of the ridges that are downstream the outlet of the inner tube 61 will promote the rotation and cause
  • the inner tube 61 should have a comparatively good heat
  • conveying ability can preferably be made of a metal alloy. It can alo be ceramic, but it should then have a thin wall in order to convey heat well.
  • the inner and outer tubes can be cast as an integrated unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)

Abstract

Un dispositif conçu pour un brûleur à mazout comprend un tube en céramique (1) à l'intérieur duquel se trouve un tube plus court (1) disposé de façon à créer une fente entre lesdits tubes. Ce dispositif est placé de manière autonome dans la chambre de combustion de la chaudière, coaxialement à un brûleur à mazout (66) monté dans la paroi de la chambre de la chaudière. Les fumées de combustion mélangées à de l'air frais provenant du ventilateur du brûleur à mazout sont aspirées vers l'intérieur de la fente se terminant à l'intérieur du tube en céramique. La flamme du brûleur à mazout dans le tube intérieur (61) réchauffe ledit tube, qui rechauffe à son tour l'air aspiré à travers la fente, qui est un air de combustion secondaire. La fente est pourvue de nervures hélicoïdales imprimant un mouvement de rotation puissant à l'air secondaire, qui est opposé à la rotation de l'air primaire du brûleur. Etant donné que l'air secondaire est chaud et effectue une rotation puissante, la combustion finale est très efficace.
PCT/SE1995/000331 1994-03-29 1995-03-29 Dispositif pour chaudieres WO1995026485A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19581592T DE19581592T1 (de) 1994-03-29 1995-03-29 Vorrichtung für Boiler
DK106696A DK106696A (da) 1994-03-29 1996-09-30 Arrangement af brænder for en kedel
NO964148A NO964148L (no) 1994-03-29 1996-09-30 Anordning for kjeler

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9401044A SE9401044L (sv) 1994-03-29 1994-03-29 Integrerad turbulator
SE9401044-4 1994-03-29

Publications (1)

Publication Number Publication Date
WO1995026485A1 true WO1995026485A1 (fr) 1995-10-05

Family

ID=20393454

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1995/000331 WO1995026485A1 (fr) 1994-03-29 1995-03-29 Dispositif pour chaudieres

Country Status (6)

Country Link
DE (1) DE19581592T1 (fr)
DK (1) DK106696A (fr)
FI (2) FI951262A (fr)
NO (1) NO964148L (fr)
SE (1) SE9401044L (fr)
WO (1) WO1995026485A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3017050C2 (de) * 1980-05-03 1983-03-24 Stettner & Co, 8560 Lauf Einsatz für Öfen oder Heizkessel
DE2922083C2 (de) * 1979-05-31 1984-02-09 Hoch-Temperatur-Technik Gmbh, 4900 Herford Flammrohr für eine brennerbefeuerte Feuerungsanlage
DE3232971A1 (de) * 1982-09-04 1984-03-08 Stettner & Co, 8560 Lauf Einsatz fuer oefen oder heizkessel
WO1986007434A1 (fr) * 1985-06-04 1986-12-18 Mueller Rudolf Bruleur pour chaudiere a combustible liquide avec circuit de recyclage des gaz de combustion
DE3618987A1 (de) * 1986-06-05 1987-12-10 Walter Swoboda Verbrennungsverfahren
DE4020237A1 (de) * 1990-06-26 1992-01-02 Hans Georg Dipl Ing Zimmermann Brenner mit brenngas-rueckfuehrung fuer fliessfaehige brennstoffe
EP0510783A2 (fr) * 1991-04-20 1992-10-28 Saacke GmbH & Co. KG Dispositif pour la combustion des combustibles fluides ou gazeux
DE4201059A1 (de) * 1992-01-17 1993-07-22 Man B & W Diesel Ag Flammrohr
DE4201060A1 (de) * 1992-01-17 1993-07-22 Man B & W Diesel Ag Brenner

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2922083C2 (de) * 1979-05-31 1984-02-09 Hoch-Temperatur-Technik Gmbh, 4900 Herford Flammrohr für eine brennerbefeuerte Feuerungsanlage
DE3017050C2 (de) * 1980-05-03 1983-03-24 Stettner & Co, 8560 Lauf Einsatz für Öfen oder Heizkessel
DE3232971A1 (de) * 1982-09-04 1984-03-08 Stettner & Co, 8560 Lauf Einsatz fuer oefen oder heizkessel
WO1986007434A1 (fr) * 1985-06-04 1986-12-18 Mueller Rudolf Bruleur pour chaudiere a combustible liquide avec circuit de recyclage des gaz de combustion
DE3618987A1 (de) * 1986-06-05 1987-12-10 Walter Swoboda Verbrennungsverfahren
DE4020237A1 (de) * 1990-06-26 1992-01-02 Hans Georg Dipl Ing Zimmermann Brenner mit brenngas-rueckfuehrung fuer fliessfaehige brennstoffe
EP0510783A2 (fr) * 1991-04-20 1992-10-28 Saacke GmbH & Co. KG Dispositif pour la combustion des combustibles fluides ou gazeux
DE4201059A1 (de) * 1992-01-17 1993-07-22 Man B & W Diesel Ag Flammrohr
DE4201060A1 (de) * 1992-01-17 1993-07-22 Man B & W Diesel Ag Brenner

Also Published As

Publication number Publication date
FI951263A (fi) 1995-09-30
FI951262A0 (fi) 1995-03-17
DK106696A (da) 1996-11-15
SE9401044D0 (sv) 1994-03-29
FI951262A (fi) 1995-09-30
NO964148D0 (no) 1996-09-30
FI951263A0 (fi) 1995-03-17
NO964148L (no) 1996-11-21
DE19581592T1 (de) 1997-02-27
SE9401044L (sv) 1995-09-30

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