EP2503238A1 - Chambre de combustion - Google Patents

Chambre de combustion Download PDF

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Publication number
EP2503238A1
EP2503238A1 EP11305321A EP11305321A EP2503238A1 EP 2503238 A1 EP2503238 A1 EP 2503238A1 EP 11305321 A EP11305321 A EP 11305321A EP 11305321 A EP11305321 A EP 11305321A EP 2503238 A1 EP2503238 A1 EP 2503238A1
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
air
combustion
chamber
solid
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Withdrawn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
EP11305321A
Other languages
German (de)
English (en)
Inventor
Guilherme Martins Ferreira
Luis filipe von Rainer Fabiani
Luiz Felipe de Pinho
Rodrigo de Sousa Borges
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP11305321A priority Critical patent/EP2503238A1/fr
Publication of EP2503238A1 publication Critical patent/EP2503238A1/fr
Withdrawn legal-status Critical Current

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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 
    • F23C3/00—Combustion apparatus characterised by the shape of the combustion chamber
    • F23C3/006—Combustion apparatus characterised by the shape of the combustion chamber the chamber being arranged for cyclonic combustion
    • 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
    • F23M5/00—Casings; Linings; Walls

Definitions

  • the present patent of invention application refers to a combustion chamber, which aims at enabling the use of solid fuels in processes with temperatures not high enough to allow the direct injection and burning of solid fuels.
  • Patent application PI 0406727-4 refers to a method and apparatus by which a flame-free combustion can be precipitated and maintained within the essentially oval combustion chamber of an integrated heater/burner unit.
  • the invention provides an air inlet and a fuel source in combination with recirculation residual gas within the combustion chamber of the apparatus to precipitate and sustain a flame-free combustion of the gases combined over and within a narrowly defined limit.
  • the air is introduced into the oval combustion chamber through an air inlet.
  • the fuel gas is combined with residual recirculation gases with continued warming of the residual recirculation gas, the air introduced or both, the residual gas and the air until the temperature at the limiting interface between air and the inert fuel gas exceeds a temperature of self-ignition of the limiting interface components.
  • a fuel gas stream without a flame portion is combined with the residual recirculation gas, and then left to spread with the air stream in a sufficient measure to maintain the flame-free combustion and the operating temperature of the chamber between 1500 and 1900 Fahrenheit.
  • the essentially oval configuration of the integrated heater/burner allows increased mass and circulation rates than those possible with contemporary art heaters, and as a consequence, provides a uniform complete, cooling combustion, resulting in low emissions of NOx.
  • the aforementioned chamber does not allow burning of solid fuels, such as proposed in the present application.
  • the combustion chamber (1) described below has the purpose of enabling the use of solid fuels (14) in processes with temperatures not high enough to allow the direct injection and burning of solid fuels (14).
  • solid fuels to be used there can be cited:
  • auxiliary fuel which can be liquid (diesel oil, bunker oil, etc.) or gaseous (natural gas, LPG, etc). Once the chamber is heated, one can start the injection of solid fuels, since the process is self-sustained.
  • Figures 2 and 3 show the physical layout of the proposed system and indicate the placement of equipment.
  • main components of the system there can be cited:
  • FIGS 4, 5 and 7 show the combustion chamber assembly (1).
  • This combustion chamber (1) is responsible for allowing the ignition of solid fuels (14) (grinded, crushed, etc.), producing a flame at the outlet.
  • solid fuels (14) grinded, crushed, etc.
  • the main feature of this chamber is its high internal temperature above 2732 Fahrenheit.
  • the preheated primary air as well as its internal environment with a low dust concentration also contributes to the proper burning of solid fuel (14).
  • the air introduced into the jacket (17) will be tangentially injected into the inner chamber (through stainless steel pipes (6)) and at high speed. This will promote an intense rotation within the combustion chamber (1), causing the residence time of solid particles (14) to be quite high (as particles will be centrifuged, staying close to the periphery as they are consumed), thus allowing an efficient burn with partial combustion of solids, with no residual fuel leftover, turning the solid fuel into a combustible gas.
  • the solid fuel (14) will also be tangentially introduced, in order to maximize the rotation within the combustion chamber (1) and thus contribute so that the fuel combustion and gasification are the best possible.
  • the chamber comprises:
  • An outer casing (5) (constructed with stainless steel or carbon steel plates) which, once fitted around the inner housing (4), makes up a jacket (17) that will provide internal cooling of the housing (4) and a pre-heating of the air used in the centrifugation of the solid fuel particles (14).
  • the air injectors (6) are stainless steel tubes that allow the tangential injection of primary air on the cylindrical portion of the chamber (1);
  • the fuel injection will occur tangentially in the same rotation direction of the primary air injectors (6) through its own nozzle;
  • Burner nozzle connection to fit the gas or oil lance to be used for preheating the chamber and adjusting the flame;
  • Pilot connection point destined for the introduction of a gas lance to be used for firing the oil burner;
  • the combustion chamber (1) in a preferred form of constructive implementation could be supported on a support trolley (2) consisting of square or round section pipes (11), in order to increase the rigidity of the structure which in turn is assembled on a displacement rail (8) comprising a flat support bar (9) and a square bar (10) acting as the rail itself.
  • a support trolley (2) consisting of square or round section pipes (11), in order to increase the rigidity of the structure which in turn is assembled on a displacement rail (8) comprising a flat support bar (9) and a square bar (10) acting as the rail itself.
  • the solid fuel (14) from the silo (15) will be introduced into a pneumatic conveying line which shall lead it towards the combustion chamber (1).
  • a roots-type blower will be employed to supply the conveying air.
  • Such blower is assigned by (13) in the installation flowchart ( figure 1 ).
  • This fan (3) shall have its drive motor fed with variable frequency through the use of a frequency converter. Such feature will be required to perform adjustments to the primary air flow depending on the system operating conditions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Solid-Fuel Combustion (AREA)
EP11305321A 2011-03-22 2011-03-22 Chambre de combustion Withdrawn EP2503238A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11305321A EP2503238A1 (fr) 2011-03-22 2011-03-22 Chambre de combustion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11305321A EP2503238A1 (fr) 2011-03-22 2011-03-22 Chambre de combustion

Publications (1)

Publication Number Publication Date
EP2503238A1 true EP2503238A1 (fr) 2012-09-26

Family

ID=44721160

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11305321A Withdrawn EP2503238A1 (fr) 2011-03-22 2011-03-22 Chambre de combustion

Country Status (1)

Country Link
EP (1) EP2503238A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014194390A1 (fr) * 2013-06-06 2014-12-11 Dynamis Engenharia E Comércio Ltda Système de gazéification de combustibles solides et liquides en chambre compacte

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738776A (en) * 1951-06-13 1956-03-20 Pollopas Patents Ltd Furnace burners
JPH109526A (ja) * 1996-06-24 1998-01-16 Miyamoto Kogyosho:Kk 火葬炉
WO2001009547A1 (fr) * 1999-07-29 2001-02-08 Independent Stave Co. Bruleurs a marge de reglage elevee et appareil de combustion a gaz
US6969250B1 (en) * 1998-12-01 2005-11-29 Ebara Corporation Exhaust gas treating device
WO2006110870A2 (fr) * 2005-04-12 2006-10-19 Zilkha Biomass Energy Llc Systeme integre d'energie de biomasse
JP2009041062A (ja) * 2007-08-08 2009-02-26 Taihei Dengyo Kaisha Ltd 高炉用熱風炉の解体および構築工法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738776A (en) * 1951-06-13 1956-03-20 Pollopas Patents Ltd Furnace burners
JPH109526A (ja) * 1996-06-24 1998-01-16 Miyamoto Kogyosho:Kk 火葬炉
US6969250B1 (en) * 1998-12-01 2005-11-29 Ebara Corporation Exhaust gas treating device
WO2001009547A1 (fr) * 1999-07-29 2001-02-08 Independent Stave Co. Bruleurs a marge de reglage elevee et appareil de combustion a gaz
WO2006110870A2 (fr) * 2005-04-12 2006-10-19 Zilkha Biomass Energy Llc Systeme integre d'energie de biomasse
JP2009041062A (ja) * 2007-08-08 2009-02-26 Taihei Dengyo Kaisha Ltd 高炉用熱風炉の解体および構築工法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014194390A1 (fr) * 2013-06-06 2014-12-11 Dynamis Engenharia E Comércio Ltda Système de gazéification de combustibles solides et liquides en chambre compacte

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