EP1504804A1 - Anordnung für partielle Rezirkulation der Abgase von mit Gas oder anderen Brennstoffen betriebenen Heizkesseln - Google Patents

Anordnung für partielle Rezirkulation der Abgase von mit Gas oder anderen Brennstoffen betriebenen Heizkesseln Download PDF

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Publication number
EP1504804A1
EP1504804A1 EP03017442A EP03017442A EP1504804A1 EP 1504804 A1 EP1504804 A1 EP 1504804A1 EP 03017442 A EP03017442 A EP 03017442A EP 03017442 A EP03017442 A EP 03017442A EP 1504804 A1 EP1504804 A1 EP 1504804A1
Authority
EP
European Patent Office
Prior art keywords
fumes
scrubbing
flue
previous
comburent air
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Withdrawn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
EP03017442A
Other languages
English (en)
French (fr)
Inventor
Ignazio Giacalone
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.)
TECNO AIR S.R.L
Original Assignee
Eurotecno Srl
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 Eurotecno Srl filed Critical Eurotecno Srl
Priority to EP03017442A priority Critical patent/EP1504804A1/de
Publication of EP1504804A1 publication Critical patent/EP1504804A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J13/00—Fittings for chimneys or flues 
    • F23J13/02—Linings; Jackets; Casings
    • F23J13/025—Linings; Jackets; Casings composed of concentric elements, e.g. double walled
    • 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
    • F23C9/06—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for completing combustion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/02—Plant or installations having external electricity supply
    • B03C3/04—Plant or installations having external electricity supply dry type
    • B03C3/09—Plant or installations having external electricity supply dry type characterised by presence of stationary flat electrodes arranged with their flat surfaces at right angles to the gas stream
    • 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 
    • F23C2202/00—Fluegas recirculation
    • F23C2202/30—Premixing fluegas with combustion air

Definitions

  • the present invention aims at providing simple devices for reducing polluting exhaust fumes emitted by balanced flue boilers powered by any type of fuel, whether gaseous, liquid or solid.
  • the comburent air inlet flue is coaxial, and generally external to the exhaust fume flue.
  • co-axial flues the combination of these two co-axial flues for comburent air and fume expulsion will be referred to using the term "co-axial flues".
  • the main aim of the present invention is to identify means able to modify the chemical composition of fumes downstream of the combustion chamber in order to reduce the concentration of unburnt gas.
  • a further aim of the present invention in a balanced flue boiler is to identify means able to destroy solid particle content in fumes downstream of the combustion chamber.
  • Another further aim of the present invention in a balanced flue boiler is to limit the installation of said means adapted for at least one of the aforesaid aims, within the co-axial flues.
  • Figure 1 shows the co-axial flues of a balanced flue boiler containing a first embodiment of the device according to the invention.
  • Figure 2 shows the co-axial flues of a balanced flue boiler containing a second embodiment of the device according to the invention.
  • the combustion products 5 (or fumes) pass through the fume expulsion flue 4 and are expelled into the external environment, while the comburent air 7 is sucked in through the air inlet flue 6.
  • said recirculation provides an improvement in energy performance, because more complete combustion permits greater utilization of the fuel calorific power, and because said part 5.1 of the recirculated fumes releases heat to the comburent air 7 instead of being lost in the environment.
  • said appropriate passages 8.1 or 8.2 can be composed of a simple opening 8.1, performed in the wall that separates the outlet flue 4° from inlet flue 6.
  • said appropriate passages 8.1 or 8.2 can alternatively be composed of ducts 8.2 of an appropriate shape to deflect the said part of the fumes 5.1 towards the interior of the inlet flue 6.
  • both figures 1 and 2 show that panels 9 are appropriately positioned and maintained inside the outlet flue 4, in a manner so that the fumes 5 can be filtered through the panels.
  • Said panels 9 can be composed of suitable perforated metal foil, or a well known type obtained through so-called micro-stretching, composed of sheets that have been previously subject to multiple cutting into regular rows, followed by stretching to obtain a type of net or mesh.
  • Said panels 9 are preferably maintained by suitable means at a potential which is different from that of the fumes 5 and the suspended particles transported by the fumes, so that the panels will attract and collect the particles through electrostatic attraction; methods and means for attracting particles using electrostatic attraction are well known and do not require further description.
  • a further advantage consists in the fact all the aforesaid means according to the present invention are enclosed within the unit formed by the co-axial flues 1.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Treating Waste Gases (AREA)
EP03017442A 2003-08-01 2003-08-01 Anordnung für partielle Rezirkulation der Abgase von mit Gas oder anderen Brennstoffen betriebenen Heizkesseln Withdrawn EP1504804A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03017442A EP1504804A1 (de) 2003-08-01 2003-08-01 Anordnung für partielle Rezirkulation der Abgase von mit Gas oder anderen Brennstoffen betriebenen Heizkesseln

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03017442A EP1504804A1 (de) 2003-08-01 2003-08-01 Anordnung für partielle Rezirkulation der Abgase von mit Gas oder anderen Brennstoffen betriebenen Heizkesseln

Publications (1)

Publication Number Publication Date
EP1504804A1 true EP1504804A1 (de) 2005-02-09

Family

ID=33547614

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03017442A Withdrawn EP1504804A1 (de) 2003-08-01 2003-08-01 Anordnung für partielle Rezirkulation der Abgase von mit Gas oder anderen Brennstoffen betriebenen Heizkesseln

Country Status (1)

Country Link
EP (1) EP1504804A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUB20155050A1 (it) * 2015-10-19 2017-04-19 Bertelli & Partners Srl Metodo per la riduzione delle emissioni di gas novici in una caldaia a gas a camera di combustione stagna e tiraggio forzato e caldaia cosi' ottenuta
CN110657573A (zh) * 2019-09-29 2020-01-07 安徽益禾机械有限公司 一种带有高温烟道高温烟气均流器的高风温热风炉

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3668836A (en) * 1970-01-22 1972-06-13 Chemical Construction Corp Electrostatic precipitator
US4411204A (en) * 1981-12-07 1983-10-25 Combustion Engineering, Inc. Method of firing a pulverized fuel-fired steam generator
EP0153046A2 (de) * 1984-02-02 1985-08-28 CARVER & CO. (ENGINEERS) LIMITED Erhitzer
EP0244569A2 (de) * 1986-05-03 1987-11-11 Lentjes BWE Energietechnik GmbH Verfahren und Vorrichtung zum Betreiben eines Dampferzeugers
EP0634610A1 (de) * 1993-07-15 1995-01-18 MEULINK & GROL B.V. Kombinierte Verbrennungsluft-Zu/Abgas-Abfuhr

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3668836A (en) * 1970-01-22 1972-06-13 Chemical Construction Corp Electrostatic precipitator
US4411204A (en) * 1981-12-07 1983-10-25 Combustion Engineering, Inc. Method of firing a pulverized fuel-fired steam generator
EP0153046A2 (de) * 1984-02-02 1985-08-28 CARVER & CO. (ENGINEERS) LIMITED Erhitzer
EP0244569A2 (de) * 1986-05-03 1987-11-11 Lentjes BWE Energietechnik GmbH Verfahren und Vorrichtung zum Betreiben eines Dampferzeugers
EP0634610A1 (de) * 1993-07-15 1995-01-18 MEULINK & GROL B.V. Kombinierte Verbrennungsluft-Zu/Abgas-Abfuhr

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUB20155050A1 (it) * 2015-10-19 2017-04-19 Bertelli & Partners Srl Metodo per la riduzione delle emissioni di gas novici in una caldaia a gas a camera di combustione stagna e tiraggio forzato e caldaia cosi' ottenuta
WO2017068407A1 (en) * 2015-10-19 2017-04-27 Bertelli & Partners S.R.L. Method for reducing harmful gas emissions from a gas-fired sealed combustion chamber forced-draught boiler using flue gas recirculation and according boiler
US20180299122A1 (en) * 2015-10-19 2018-10-18 Bertelli & Partners S.R.L. Method for reducing harmful gas emissions from a gas-fired sealed combustion chamber forced-draught boiler and boiler so obtained
EA036581B1 (ru) * 2015-10-19 2020-11-26 Бертелли Энд Партнерс С.Р.Л. Способ снижения выбросов вредных газов из котла, работающего на газообразном топливе и имеющего уплотненную камеру сгорания с принудительной тягой, и котел, получаемый таким способом
US10851991B2 (en) 2015-10-19 2020-12-01 Bertelli & Partners S.R.L. Method for reducing harmful gas emissions from a gas-fired sealed combustion chamber forced-draught boiler and boiler so obtained
CN110657573A (zh) * 2019-09-29 2020-01-07 安徽益禾机械有限公司 一种带有高温烟道高温烟气均流器的高风温热风炉

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