WO2008104859A3 - Boiler and method for operating said boiler - Google Patents

Boiler and method for operating said boiler Download PDF

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Publication number
WO2008104859A3
WO2008104859A3 PCT/IB2008/000422 IB2008000422W WO2008104859A3 WO 2008104859 A3 WO2008104859 A3 WO 2008104859A3 IB 2008000422 W IB2008000422 W IB 2008000422W WO 2008104859 A3 WO2008104859 A3 WO 2008104859A3
Authority
WO
WIPO (PCT)
Prior art keywords
susceptible
boiler
fumes
heat
exchanger
Prior art date
Application number
PCT/IB2008/000422
Other languages
French (fr)
Other versions
WO2008104859A2 (en
Inventor
Valerio Abate
Michela Bianchi
Alberto Conti
Original Assignee
Exel 2 S R L
Valerio Abate
Michela Bianchi
Alberto Conti
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 Exel 2 S R L, Valerio Abate, Michela Bianchi, Alberto Conti filed Critical Exel 2 S R L
Priority to EP08719172A priority Critical patent/EP2122245A2/en
Publication of WO2008104859A2 publication Critical patent/WO2008104859A2/en
Publication of WO2008104859A3 publication Critical patent/WO2008104859A3/en

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 
    • F23C6/00—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion
    • F23C6/04—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection
    • F23C6/042—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection with fuel supply in stages
    • 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 
    • F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • F23C5/08—Disposition of burners
    • F23C5/32—Disposition of burners to obtain rotating flames, i.e. flames moving helically or spirally
    • 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
    • F23D14/125—Radiant burners heating a wall surface to incandescence
    • 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
    • F23D14/126—Radiant burners cooperating with refractory wall surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
    • F23L7/007—Supplying oxygen or oxygen-enriched air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/003—Systems for controlling combustion using detectors sensitive to combustion gas properties
    • F23N5/006—Systems for controlling combustion using detectors sensitive to combustion gas properties the detector being sensitive to oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
    • F24H1/403—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes the water tubes being arranged in one or more circles around the burner
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/46—Water heaters having plural combustion chambers
    • 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 
    • F23C2201/00—Staged combustion
    • F23C2201/40—Intermediate treatments between stages
    • F23C2201/401—Cooling
    • 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 
    • F23C2203/00—Flame cooling methods otherwise than by staging or recirculation
    • F23C2203/10—Flame cooling methods otherwise than by staging or recirculation using heat exchanger
    • 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 
    • F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/03003—Annular combustion chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2207/00—Ignition devices associated with burner
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/08—Measuring temperature
    • F23N2225/16—Measuring temperature burner temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/26—Measuring humidity
    • F23N2225/30—Measuring humidity measuring lambda
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N3/00—Regulating air supply or draught
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/30—Technologies for a more efficient combustion or heat usage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Abstract

Boiler comprising a support structure, a burner mounted on said support structure, susceptible to burn a mixture of comburent air and fuel for generating a flow of hot fumes and means for transferring heat from the above-mentioned fumes to a hydraulic circuit of a carrier fluid, water in particular. Such heat transferring means are provided with at least a first heat exchanger and at least a second heat exchanger susceptible to exchange heat with the hot fumes in sequence. The boiler comprises at least one pipe made of ceramic material arranged inside the burner, susceptible to convey the fumes between the first exchanger and the second exchanger, and a plurality of nozzles for introducing the mixture. The nozzles are arranged spaced from each other inside the burner, around the above-mentioned pipe and are susceptible to generate a flame in contact with the outer surface of the pipe.
PCT/IB2008/000422 2007-02-28 2008-02-27 Boiler and method for operating said boiler WO2008104859A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08719172A EP2122245A2 (en) 2007-02-28 2008-02-27 Boiler and method for operating said boiler

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000066A ITPD20070066A1 (en) 2007-02-28 2007-02-28 BOILER AND OPERATING METHOD OF THIS BOILER
ITPD2007A000066 2007-02-28

Publications (2)

Publication Number Publication Date
WO2008104859A2 WO2008104859A2 (en) 2008-09-04
WO2008104859A3 true WO2008104859A3 (en) 2009-05-14

Family

ID=39721654

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/000422 WO2008104859A2 (en) 2007-02-28 2008-02-27 Boiler and method for operating said boiler

Country Status (3)

Country Link
EP (1) EP2122245A2 (en)
IT (1) ITPD20070066A1 (en)
WO (1) WO2008104859A2 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6600408A (en) * 1966-01-12 1967-07-13
DE3903687A1 (en) * 1988-02-08 1989-08-17 Vaillant Joh Gmbh & Co Device for the combustion in stages of a fuel/air mixture
DE19627028A1 (en) * 1996-07-04 1998-01-08 Siemens Ag Flue gas cleaner for domestic wood-burning heaters
DE19824204A1 (en) * 1998-05-29 1999-12-09 Siemens Ag Catalytic emissions reduction unit for a domestic heating system
DE10024796A1 (en) * 1999-05-25 2001-02-22 Vaillant Joh Gmbh & Co Air stepped burner has gas nozzles around edge of base plate and central air connection opening into air distributor in combustion chamber with air openings at base and top of distributor
DE10001251A1 (en) * 2000-01-14 2001-07-19 Bosch Gmbh Robert Gas burner has controller that detects coarse gas quality change, activates lambda probe if threshold exceeded, drives actuator to adjust gas-air mixture based on lambda probe/sensor signals
US20040025805A1 (en) * 2002-07-15 2004-02-12 Toshihiro Kayahara Combustion method and apparatus for NOx reduction
US6971336B1 (en) * 2005-01-05 2005-12-06 Gas Technology Institute Super low NOx, high efficiency, compact firetube boiler

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6600408A (en) * 1966-01-12 1967-07-13
DE3903687A1 (en) * 1988-02-08 1989-08-17 Vaillant Joh Gmbh & Co Device for the combustion in stages of a fuel/air mixture
DE19627028A1 (en) * 1996-07-04 1998-01-08 Siemens Ag Flue gas cleaner for domestic wood-burning heaters
DE19824204A1 (en) * 1998-05-29 1999-12-09 Siemens Ag Catalytic emissions reduction unit for a domestic heating system
DE10024796A1 (en) * 1999-05-25 2001-02-22 Vaillant Joh Gmbh & Co Air stepped burner has gas nozzles around edge of base plate and central air connection opening into air distributor in combustion chamber with air openings at base and top of distributor
DE10001251A1 (en) * 2000-01-14 2001-07-19 Bosch Gmbh Robert Gas burner has controller that detects coarse gas quality change, activates lambda probe if threshold exceeded, drives actuator to adjust gas-air mixture based on lambda probe/sensor signals
US20040025805A1 (en) * 2002-07-15 2004-02-12 Toshihiro Kayahara Combustion method and apparatus for NOx reduction
US6971336B1 (en) * 2005-01-05 2005-12-06 Gas Technology Institute Super low NOx, high efficiency, compact firetube boiler

Also Published As

Publication number Publication date
ITPD20070066A1 (en) 2008-09-01
WO2008104859A2 (en) 2008-09-04
EP2122245A2 (en) 2009-11-25

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