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EP0154956A2 - Brenner für einen mit festem Brennstoff betriebenen Stahlkessel - Google Patents

Brenner für einen mit festem Brennstoff betriebenen Stahlkessel Download PDF

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Publication number
EP0154956A2
EP0154956A2 EP85102714A EP85102714A EP0154956A2 EP 0154956 A2 EP0154956 A2 EP 0154956A2 EP 85102714 A EP85102714 A EP 85102714A EP 85102714 A EP85102714 A EP 85102714A EP 0154956 A2 EP0154956 A2 EP 0154956A2
Authority
EP
European Patent Office
Prior art keywords
hole
burner
boiler
housing
space portion
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.)
Granted
Application number
EP85102714A
Other languages
English (en)
French (fr)
Other versions
EP0154956B1 (de
EP0154956A3 (en
Inventor
Giovanni Jahier
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.)
Unical SpA
Original Assignee
Unical 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
Priority claimed from IT18107/84A external-priority patent/IT1181346B/it
Application filed by Unical SpA filed Critical Unical SpA
Priority to AT85102714T priority Critical patent/ATE35176T1/de
Publication of EP0154956A2 publication Critical patent/EP0154956A2/de
Publication of EP0154956A3 publication Critical patent/EP0154956A3/en
Application granted granted Critical
Publication of EP0154956B1 publication Critical patent/EP0154956B1/de
Expired 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
    • F23B5/00—Combustion apparatus with arrangements for burning uncombusted material from primary combustion
    • F23B5/04—Combustion apparatus with arrangements for burning uncombusted material from primary combustion in separate combustion chamber; on separate grate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B7/00—Combustion techniques; Other solid-fuel combustion apparatus
    • F23B7/002—Combustion techniques; Other solid-fuel combustion apparatus characterised by gas flow arrangements
    • F23B7/005—Combustion techniques; Other solid-fuel combustion apparatus characterised by gas flow arrangements with downdraught through fuel bed and grate
    • 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
    • F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
    • F24H1/26—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body
    • 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
    • F24H9/001—Guiding means
    • F24H9/0026—Guiding means in combustion gas channels

Definitions

  • This invention relates to an improved burner for a solid fuel-fired steel construction boiler.
  • solid fuel-fired steel construction boilers for civil heating applications which comprise a space portion of vertically elongate shape, delimited by longitudinal side walls, a bottom and a cover lined with an interspace containing water to be heated, as well as . front and rear faces also provided, at least partially, with a similar interspace.
  • Said space portion is subdivided into an upper zone and a lower zone, and a burner is provided at the subdivision between the two zones;
  • the upper zone is intended for containing the fuel which is loaded from a door provided in the front face, whilst in the lower zone, there occurs the development of the flame issuing from said burner and conveyance of the flue gases toward a smoke box located at the rear face and provided with a connection to the chimney.
  • a combustion air metering unit which comprises an electric fan controlled by an automatic regulating circuit, and a distribution chamber whence primary air flows out toward the top of the upper zone of the boiler, whilst secondary air flows out at the burner to complete the combustion.
  • Another object of the invention is to provide a burner which has those parts which are most liable to wear out of low cost and readily removable, thereby the damage is limited to a minimum with the replacement thereof at the end of a useful life cycle.
  • an improved burner for a solid fuel-fired steel construction boiler comprising a space portion lined with an interspace containing water to be heated, subdivided into an upper fuel-containing zone and lower zone wherein the development of the flame and conveyance of the flue gases generated from a burner situated at the subdivision between said upper and lower zones take place, and provided at the front face with a combustion air metering unit which comprises a distribution chamber supplied from an electric fan whence primary air flows out toward the top of the upper zone whilst secondary air flows out at the burner, characterized in that it comprises a refractory stone block laid in a substantially horizontal plane to delimit the upper and lower zones of the boiler space portion, provided on the top face with a housing which has the bottom formed at a substantially center location with a hole adapted to put into communication said upper and lower zones of the boiler space portion, and adapted to contain, resting on the bottom at the periphery of the hole, at least one body formed from a
  • the burner which is supported on shelves 2 extending from the walls 3 of the boiler space portion lined with the interspace or jacket of water 4 to be heated so as to delimit the upper zone 5a of said space portion containing the fuel, which in the figure is represented by firewood pieces but could indifferently be coal or any other solid fuel, separating it from the lower portion 5b wherein the flame development and conveyance of the flue gases toward a smoke box , not shown in the figure and located at the rear face, take place; provided in a known manner at the front face is a combustion air metering unit which comprises the distribution chamber 6 supplied from the electric fan 7, whence primary air flows out toward the top of the upper zone 5a whilst secondary air is delivered to the burner 1 as explained hereinafter.
  • a combustion air metering unit which comprises the distribution chamber 6 supplied from the electric fan 7, whence primary air flows out toward the top of the upper zone 5a whilst secondary air is delivered to the burner 1 as explained hereinafter.
  • the burner 1 comprises the refractory stone block 8, with a refractory material 8a filling at the edges thereof and which has at the top face the housing 9, at the bottom whereof there is provided the-elongate hole 10 which communicates the upper zone 5a with the lower zone 5b of the boiler space portion.
  • the serrations of the fire bars protrude, without coming into mutual contact, into the space portion overlying the hole 10 with surfaces which, extending substantially from the edges of said hole, have an inclined lower portion as at 13a and a substantially vertical upper portion as at 13b, thereby a means of holding the overlying embers is provided.
  • the aforesaid slots in the fire bar 12 are in communication with the longitudinal recess 28, and those in the fire bar 11 with the like recess 29, said recesses 28 and 29 are located to correspond with the holes 28a,29a, respectively, formed in the block 8 facing holes such as 6a in communication with the distribution chamber for the combustion air 6.
  • the burner is configured so as not to develop dangerous deformations, and that those parts of it which are more liable to wear out, i.e. those in direct contact with the embers, have been formed of fire bars which are replaceable,with a very simple operation that any user can carry out, and at very low cost.
  • this variation again includes the refractory stone block 8 with housing 9 provided at the bottom with the hole 10 adapted to put in communication the upper and lower zones of the boiler space portion, and at the edges of the hole 10 there are laid onto the flat bottom of the housing the two fire bars 30 and 31 of refractory material which have, similarly to what has been described for the fire bars 11 and 12, the surface intended to rest onto the bottom formed with throughgoing cross slots 32,33,34,35,36 for the fire bar 30, in communication with longitudinal recesses such as 37 intended for arranging themselves at the holes 28a,29a formed in the block 8 for admitting secondary air at the burner.
  • the embers holding means overlying the hole 10 with which the fire bars 30 and 31 are equipped in this variation comprises a metal grid which is constructed in several parts to avoid dangerous deformations, and is accordingly formed by the round cross-section rods 38 and 39, intended to arrange themselves in corresponding alignment at the axis of the hole 10 following resting of the cross-pieces 38a,38b and 39a,39b with which they are provided in the cutouts 40,41, 42,43 of the fire bar 30 and confronting cutouts 44, 45,46,47 of the fire bar 31.
  • the fire bars inserted into the housing provided in the refractory stone block may be replaced with a monolithic body, or a series of modular elements, and the secondary air conveying ducting may be formed, at least in part, on the bottom of said housing.

Landscapes

  • 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)
  • Gas Burners (AREA)
EP19850102714 1984-03-16 1985-03-09 Brenner für einen mit festem Brennstoff betriebenen Stahlkessel Expired EP0154956B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85102714T ATE35176T1 (de) 1984-03-16 1985-03-09 Brenner fuer einen mit festem brennstoff betriebenen stahlkessel.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT1810784 1984-03-16
IT18107/84A IT1181346B (it) 1984-03-16 1984-03-16 Bruciatore perfezionato per caldaia in acciaio a combustibile solido
US06/619,569 US4516534A (en) 1984-03-16 1984-06-11 Steel construction solid-fuel firing boiler for civil heating applications
US619569 1984-06-11

Publications (3)

Publication Number Publication Date
EP0154956A2 true EP0154956A2 (de) 1985-09-18
EP0154956A3 EP0154956A3 (en) 1986-04-02
EP0154956B1 EP0154956B1 (de) 1988-06-15

Family

ID=26326976

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850102714 Expired EP0154956B1 (de) 1984-03-16 1985-03-09 Brenner für einen mit festem Brennstoff betriebenen Stahlkessel

Country Status (2)

Country Link
EP (1) EP0154956B1 (de)
DE (1) DE3563380D1 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3617146C1 (en) * 1986-05-22 1987-11-26 Stahl Und Appbau Josef Schuste Solid-fuel boiler
EP0254321A2 (de) * 1986-07-25 1988-01-27 Hermann Hofmann Ofen für Festbrennstoffe
EP0409790A1 (de) * 1989-07-19 1991-01-23 Willi Hager Feuerungsanlage
FR2687214A1 (fr) * 1992-02-07 1993-08-13 Dietrich Michel De Chaudiere a combustible solide, et particulierement chaudiere a bois.
EP1158241A2 (de) * 2000-05-25 2001-11-28 Josef Zauner Sturzbrandbrennkammer mit Sekundärluftzuführung
EP1970623A2 (de) * 2007-03-14 2008-09-17 AR.CA. S.r.l. Festbrennstoffkessel
FR3114867A1 (fr) * 2020-10-07 2022-04-08 Christian Schulhof Developpement SYSTÈME DE CHAUFFAGE à granulés avec une combusion inversée suivie d’une postcombustion
EP4209708A1 (de) * 2022-01-03 2023-07-12 Blaze Harmony s.r.o. Festbrennstoff-vergasungserhitzer mit radialer düse

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE117805C (de) *
DE134819C (de) *
DE102377C (de) *
FR674928A (fr) * 1929-05-11 1930-02-04 Foyer fumivore pour chaudières à vapeur
FR1016208A (fr) * 1950-04-12 1952-11-05 Morvan Ets Appareils de chauffage
US4078541A (en) * 1976-02-09 1978-03-14 Roycraft Engineering Company Wood and oil burning furnace
FR2516209A1 (fr) * 1981-11-10 1983-05-13 Hays Claude Perfectionnement aux dispositifs de chauffage a combustion inversee
CA1160116A (en) * 1981-08-13 1984-01-10 Charles S. Ingersoll Wood fuel heating apparatus and combustion process

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE117805C (de) *
DE134819C (de) *
DE102377C (de) *
FR674928A (fr) * 1929-05-11 1930-02-04 Foyer fumivore pour chaudières à vapeur
FR1016208A (fr) * 1950-04-12 1952-11-05 Morvan Ets Appareils de chauffage
US4078541A (en) * 1976-02-09 1978-03-14 Roycraft Engineering Company Wood and oil burning furnace
CA1160116A (en) * 1981-08-13 1984-01-10 Charles S. Ingersoll Wood fuel heating apparatus and combustion process
FR2516209A1 (fr) * 1981-11-10 1983-05-13 Hays Claude Perfectionnement aux dispositifs de chauffage a combustion inversee

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3617146C1 (en) * 1986-05-22 1987-11-26 Stahl Und Appbau Josef Schuste Solid-fuel boiler
EP0254321A2 (de) * 1986-07-25 1988-01-27 Hermann Hofmann Ofen für Festbrennstoffe
EP0254321A3 (en) * 1986-07-25 1989-02-08 Hermann Hofmann Stove for solid fuel
EP0409790A1 (de) * 1989-07-19 1991-01-23 Willi Hager Feuerungsanlage
FR2687214A1 (fr) * 1992-02-07 1993-08-13 Dietrich Michel De Chaudiere a combustible solide, et particulierement chaudiere a bois.
EP1158241A2 (de) * 2000-05-25 2001-11-28 Josef Zauner Sturzbrandbrennkammer mit Sekundärluftzuführung
EP1158241A3 (de) * 2000-05-25 2001-12-19 Josef Zauner Sturzbrandbrennkammer mit Sekundärluftzuführung
EP1970623A2 (de) * 2007-03-14 2008-09-17 AR.CA. S.r.l. Festbrennstoffkessel
EP1970623A3 (de) * 2007-03-14 2009-01-07 AR.CA. S.r.l. Festbrennstoffkessel
FR3114867A1 (fr) * 2020-10-07 2022-04-08 Christian Schulhof Developpement SYSTÈME DE CHAUFFAGE à granulés avec une combusion inversée suivie d’une postcombustion
EP4209708A1 (de) * 2022-01-03 2023-07-12 Blaze Harmony s.r.o. Festbrennstoff-vergasungserhitzer mit radialer düse

Also Published As

Publication number Publication date
DE3563380D1 (en) 1988-07-21
EP0154956B1 (de) 1988-06-15
EP0154956A3 (en) 1986-04-02

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