EP1026455A1 - Basic boiler combustion chamber - Google Patents

Basic boiler combustion chamber Download PDF

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Publication number
EP1026455A1
EP1026455A1 EP99830056A EP99830056A EP1026455A1 EP 1026455 A1 EP1026455 A1 EP 1026455A1 EP 99830056 A EP99830056 A EP 99830056A EP 99830056 A EP99830056 A EP 99830056A EP 1026455 A1 EP1026455 A1 EP 1026455A1
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
air
burner
chamber
boiler
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.)
Ceased
Application number
EP99830056A
Other languages
German (de)
French (fr)
Inventor
Giorgio Ing. Pastorini
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.)
Iaber SpA
Original Assignee
Iaber SpA
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 Iaber SpA filed Critical Iaber SpA
Priority to EP99830056A priority Critical patent/EP1026455A1/en
Publication of EP1026455A1 publication Critical patent/EP1026455A1/en
Ceased legal-status Critical Current

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Classifications

    • 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
    • F24H9/00—Details
    • F24H9/0084—Combustion air preheating
    • 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
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • 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
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
    • F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel

Definitions

  • the new Basic boiler we are presently designing, features innovative characteristics as compared to the traditional closed chamber boilers, essentially as follows :
  • the air flows along all four sides of the combustion chamber: with the new Basic boiler, the air is always let in the top of the air chamber, but it flows to a channel on the rear of the combustion chamber to reach the exact spot where its is required, namely in the burner's venturi area (see attached drawings).
  • the sheet of the combustion chamber is formed above and under the exchanger with C-shaped folds filling the area between the semi-header and the terminal fin of the exchanger. Moreover to assure such tightness the C-shaped lip of the combustion chamber is pushed against the terminal fin of the combustion chamber by pins inserted between the edge of the semi-header and the C-shaped lip of the combustion chamber.
  • the gas burner-header assembly is the element providing gas distribution to the various burner's ducts through nozzles, mixing gas with the air supporting combustion, and burning the resulting air-gas mixture.
  • the alignment of the distributing nozzles with the burner's ducts must be perfect in order not to impair their operation.
  • This assembly is normally fastened to the combustion chamber by means of brackets welded on the header and screwed on the back of the combustion chamber.
  • header-burner assembly fastening system used on Basic boilers lays in the fact that brackets have been eliminated and the whole assembly is fixed to the combustion chamber by rectangular seats lodging the distributor ends (see drawing): fastening of the assembly is then completed by securing the gas piping on the bottom of the combustion chamber by means of a nut.

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

Abstract

This new design enables to draw the air supporting combustion from outside through a pipe, letting it directly into the combustion area, without leaving it free to flow.

Description

  • The new Basic boiler, we are presently designing, features innovative characteristics as compared to the traditional closed chamber boilers, essentially as follows :
    • Air chamber
    • Airtight terminal flanges of the bi-thermal exchanger on the combustion chamber
    • Burner's support without brackets
    • Possibility to exhaust flue gas vertically or on the rear by rotating the fan exhaust elbow
  • Hereafter please find a description of the above characteristics :
    • AIR CHAMBER
  • In tight chamber boilers, the combustion chamber and the air chamber are completely separated from the room where the boiler is installed. The air required for combustion is drawn from outside through a pipe, is let into the top of the boiler air chamber and through this chamber is brought to the combustion area.
  • Normally in standard boilers, the air flows along all four sides of the combustion chamber: with the new Basic boiler, the air is always let in the top of the air chamber, but it flows to a channel on the rear of the combustion chamber to reach the exact spot where its is required, namely in the burner's venturi area (see attached drawings).
    • TIGHTNESS OF THE EXCHANGER FLANGES ON THE COMBUSTION CHAMBER
  • As said above, the sides of the combustion chamber are not enclosed into the air chamber, tightness must therefore be assured by the connection between the exchanger and the combustion chamber.
  • To provide such tightness, the sheet of the combustion chamber is formed above and under the exchanger with C-shaped folds filling the area between the semi-header and the terminal fin of the exchanger. Moreover to assure such tightness the C-shaped lip of the combustion chamber is pushed against the terminal fin of the combustion chamber by pins inserted between the edge of the semi-header and the C-shaped lip of the combustion chamber.
    • BURNER'S SUPPORT WITHOUT BRACKETS
  • The gas burner-header assembly is the element providing gas distribution to the various burner's ducts through nozzles, mixing gas with the air supporting combustion, and burning the resulting air-gas mixture. The alignment of the distributing nozzles with the burner's ducts must be perfect in order not to impair their operation.
  • This assembly is normally fastened to the combustion chamber by means of brackets welded on the header and screwed on the back of the combustion chamber.
  • The novelty of the header-burner assembly fastening system used on Basic boilers lays in the fact that brackets have been eliminated and the whole assembly is fixed to the combustion chamber by rectangular seats lodging the distributor ends (see drawing): fastening of the assembly is then completed by securing the gas piping on the bottom of the combustion chamber by means of a nut.
    • EXHAUST OF GAS FLUES ON THE REAR OR UPWARD
  • At present in laber boilers gas flues are exhausted only upward. The basic boiler will also provide the possibility to have gas flues exhausted toward the wall on which the boiler is mounted. Such new direction will be obtained by rotating the exhaust pipe keyed on the fan delivery orifice.

Claims (4)

  1. In Basic boiler the air let into the top of the air chamber flows into a channel located on the rear of the combustion chamber and reaches the exact spot where it is required, that is in the area of the burner's venturis.
  2. The tightness of the combustion chamber to the air chamber is assured by a fastening system consisting of C-shaped folds.
  3. The burner-header assembly is fastened to the combustion chamber by means of rectangular seats lodging the distributor ends.
  4. The new laber boilers provide the possibility to exhaust gas flues directly on the wall where the boiler is mounted, by rotating the exhaust pipe keyed on the delivery orifice of the fan.
EP99830056A 1999-02-03 1999-02-03 Basic boiler combustion chamber Ceased EP1026455A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99830056A EP1026455A1 (en) 1999-02-03 1999-02-03 Basic boiler combustion chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99830056A EP1026455A1 (en) 1999-02-03 1999-02-03 Basic boiler combustion chamber

Publications (1)

Publication Number Publication Date
EP1026455A1 true EP1026455A1 (en) 2000-08-09

Family

ID=8243262

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99830056A Ceased EP1026455A1 (en) 1999-02-03 1999-02-03 Basic boiler combustion chamber

Country Status (1)

Country Link
EP (1) EP1026455A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104266363A (en) * 2014-09-28 2015-01-07 力聚热力设备科技有限公司 Low-noise boiler with air preheating
EP2390594A3 (en) * 2010-05-26 2015-08-26 Gealan Formteile GmbH Device for heating media

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149484A (en) * 1983-11-07 1985-06-12 Leblanc Sa E L M Condensation boiler
EP0806616A2 (en) * 1996-05-10 1997-11-12 FAGOR, S.Coop Sealed wall-hung boiler with reduced size heating parts

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149484A (en) * 1983-11-07 1985-06-12 Leblanc Sa E L M Condensation boiler
EP0806616A2 (en) * 1996-05-10 1997-11-12 FAGOR, S.Coop Sealed wall-hung boiler with reduced size heating parts

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2390594A3 (en) * 2010-05-26 2015-08-26 Gealan Formteile GmbH Device for heating media
CN104266363A (en) * 2014-09-28 2015-01-07 力聚热力设备科技有限公司 Low-noise boiler with air preheating

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