EP2278221A2 - Chambre de combustion pour carburants en vrac, notamment des granulés de bois - Google Patents

Chambre de combustion pour carburants en vrac, notamment des granulés de bois Download PDF

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Publication number
EP2278221A2
EP2278221A2 EP10450100A EP10450100A EP2278221A2 EP 2278221 A2 EP2278221 A2 EP 2278221A2 EP 10450100 A EP10450100 A EP 10450100A EP 10450100 A EP10450100 A EP 10450100A EP 2278221 A2 EP2278221 A2 EP 2278221A2
Authority
EP
European Patent Office
Prior art keywords
section
shaft
combustion chamber
cyclone separator
carburetor
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.)
Withdrawn
Application number
EP10450100A
Other languages
German (de)
English (en)
Inventor
Georg Fischer
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.)
Guntamtic Heiztechnik GmbH
Original Assignee
Guntamtic Heiztechnik 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 Guntamtic Heiztechnik GmbH filed Critical Guntamtic Heiztechnik GmbH
Publication of EP2278221A2 publication Critical patent/EP2278221A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B80/00—Combustion apparatus characterised by means creating a distinct flow path for flue gases or for non-combusted gases given off by the fuel
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/303—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable with ladder-tape
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/38—Other details
    • E06B9/386—Details of lamellae
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B10/00—Combustion apparatus characterised by the combination of two or more combustion chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B60/00—Combustion apparatus in which the fuel burns essentially without moving
    • F23B60/02—Combustion apparatus in which the fuel burns essentially without moving with combustion air supplied through a grate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B80/00—Combustion apparatus characterised by means creating a distinct flow path for flue gases or for non-combusted gases given off by the fuel
    • F23B80/04—Combustion apparatus characterised by means creating a distinct flow path for flue gases or for non-combusted gases given off by the fuel by means for guiding the flow of flue gases, e.g. baffles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2217/00—Intercepting solids
    • F23J2217/40—Intercepting solids by cyclones

Definitions

  • the invention relates to a combustion chamber for lumpy fuel, in particular wood pellets, with a carburetor section which receives the fuel and a combustion section which adjoins the carburetor section and forms a cyclone separator.
  • the axis of the carburetor section extends transversely to the axis of the cyclone separator forming the burnout section in order to be able to transfer the exhaust gases from the carburetor section as tangentially as possible into the cyclone separator, not only does a corresponding lateral space requirement arise, but also with certain restrictions with regard to the charging of the carburetor section be calculated with fuel. In addition, it has been found that it is difficult to ensure favorable combustion conditions for the fuel in the gasifier section of the combustion chamber.
  • the invention is therefore based on the object, a combustion chamber for lumpy fuel, especially wood pellets, of the type described in such a way that despite an improved pre-combustion of lumpy fuel in the carburetor section no adverse effects in the field of afterburning and the separation of the combustion residues from the exhaust gases Burn-out zone must be taken into account.
  • the invention solves this problem by the fact that the carburetor section forms a laterally provided next to the cyclone, ascending shaft which is connected to the cyclone separator via an upper, tangentially opening into the cyclone overflow channel.
  • the carburetor section of the combustion chamber forms an ascending shaft provided laterally next to the cyclone separator, the result is initially a space-saving, compact construction.
  • the ascending shaft of the carburetor section also offers particularly advantageous firing conditions for the lumpy fuel, because due to the shaft guide experienced with the resulting exhaust gases fuel particles in the exhaust stream undergo a largely uniform distribution.
  • the residence time of the fuel particles in the shaft depending on the mass of these particles regulates itself.
  • the cyclone of the burn-out substantially parallel shaft of the carburetor section can be taken care of a good separation of the combustion residues through the cyclone when the shaft of the carburetor with the Zyklonabscheider is connected via an upper, tangentially opening into the cyclone overflow channel, whose mouth course so regardless of the shaft arrangement in the cyclone can be involved so that within the cyclone, preferably in the range of a dip tube for the exhaust system, an advantageous circulation flow adjusting, which ensures a sufficient burn-out without endangering the extensive separation of the combustion residues from the exhaust stream, which is withdrawn via the dip tube.
  • the side of the cyclone provided next to the slot of the carburetor also offers the opportunity to influence the exhaust gas temperature within the shaft, because the outer wall of the carburetor can be formed as a cooling zone. Cooling in the region of the carburetor section reduces the risk of liquefaction of the forming ash, which increases the reliability of the combustion chamber. In the subsequent burn-out zone, a temperature-induced agglomeration of the combustion residues for easier separation from the exhaust gas stream is desired.
  • the effect of the fumigation of the gasifier section is of particular importance with regard to the combustion conditions for the fuel.
  • this fouling effect can be used particularly advantageous, is to ensure a sufficiently slim shaft.
  • Particularly favorable conditions arise in this context when the diameter at the lower end of the shaft corresponds to at most half of the shaft height and the shaft height is smaller than the cyclone height.
  • the combustion chamber 1 is composed of a base body 2 and a lid 4 placed on the base body 2 via a seal 3.
  • a shaft 6 rising above a grate 6 as a carburetor section 7 and parallel to this shaft 6, a burnout section 8 in the form of a cyclone separator 9 is formed.
  • the cover 4 closes off the shaft 6 and the overflow channel 10 upwards.
  • the cover 4 forms a dip tube 11 delimiting the cyclone separator 9 upwards.
  • a case loading shaft 12 opening into the shaft 6 is provided in the base body 2. But it can also be a feed with a lateral screw conveyor or be provided from below, because it does not depend on the type of loading of the combustion chamber 1 with fuel.
  • a recess 13 for connection of an ignition device is provided for igniting the fuel in the shaft 6.
  • the cyclone separator 9 has a downwardly open outlet opening 14 leading into an ashtray, via which the combustion residues separated off from the exhaust gas flow of the burnout section 8 are discharged.
  • the exhaust gas cleaned from combustion residues leaves the cyclone separator 9 via the dip tube 11 in order to charge a subsequent heat exchanger.
  • the carburetor section 7 of the combustion chamber 1 primary air via the grate 5 is supplied.
  • the secondary air required for the burn-out in the burn-out 8 is provided via a Flow channel 15 is provided, which opens in the gusset region between the cyclone 9 and the overflow 10 on the inside, as shown in Fig. 3 evident.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Solid-Fuel Combustion (AREA)
EP10450100A 2009-07-20 2010-06-09 Chambre de combustion pour carburants en vrac, notamment des granulés de bois Withdrawn EP2278221A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0044809U AT11432U1 (de) 2009-07-20 2009-07-20 Brennkammer für stückeligen brennstoff, insbesondere holzpellets

Publications (1)

Publication Number Publication Date
EP2278221A2 true EP2278221A2 (fr) 2011-01-26

Family

ID=42537329

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10450100A Withdrawn EP2278221A2 (fr) 2009-07-20 2010-06-09 Chambre de combustion pour carburants en vrac, notamment des granulés de bois

Country Status (2)

Country Link
EP (1) EP2278221A2 (fr)
AT (1) AT11432U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT511878A3 (de) * 2011-08-31 2013-07-15 Bosch Gmbh Robert Trichterförmige Sekundärbrennkammer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103453523A (zh) * 2013-09-05 2013-12-18 无锡华光锅炉股份有限公司 一种用于循环流化床锅炉的中心筒结构

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT414036B (de) 2004-03-03 2006-08-15 Guntamatic Heiztechnik Gmbh Feuerung für stückeligen brennstoff aus nachwachsenden rohstoffen, insbesondere für einen heizkessel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT414036B (de) 2004-03-03 2006-08-15 Guntamatic Heiztechnik Gmbh Feuerung für stückeligen brennstoff aus nachwachsenden rohstoffen, insbesondere für einen heizkessel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT511878A3 (de) * 2011-08-31 2013-07-15 Bosch Gmbh Robert Trichterförmige Sekundärbrennkammer
AT511878B1 (de) * 2011-08-31 2014-05-15 Bosch Gmbh Robert Trichterförmige Sekundärbrennkammer

Also Published As

Publication number Publication date
AT11432U1 (de) 2010-10-15

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