EP0058658B1 - Anordnung zum brennen fester brennstoffe - Google Patents

Anordnung zum brennen fester brennstoffe Download PDF

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Publication number
EP0058658B1
EP0058658B1 EP80900738A EP80900738A EP0058658B1 EP 0058658 B1 EP0058658 B1 EP 0058658B1 EP 80900738 A EP80900738 A EP 80900738A EP 80900738 A EP80900738 A EP 80900738A EP 0058658 B1 EP0058658 B1 EP 0058658B1
Authority
EP
European Patent Office
Prior art keywords
fuel
space
arrangement
air
fire
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.)
Expired
Application number
EP80900738A
Other languages
English (en)
French (fr)
Other versions
EP0058658A1 (de
Inventor
Johan Thorsten Hellzen
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.)
HELLZEN Johan Thorsten
Original Assignee
HELLZEN Johan Thorsten
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 HELLZEN Johan Thorsten filed Critical HELLZEN Johan Thorsten
Priority to AT80900738T priority Critical patent/ATE17036T1/de
Publication of EP0058658A1 publication Critical patent/EP0058658A1/de
Application granted granted Critical
Publication of EP0058658B1 publication Critical patent/EP0058658B1/de
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B1/00—Stoves or ranges
    • F24B1/02—Closed stoves
    • F24B1/08—Closed stoves with fuel storage in a single undivided hopper within stove or range
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B5/00—Combustion-air or flue-gas circulation in or around stoves or ranges
    • F24B5/02—Combustion-air or flue-gas circulation in or around stoves or ranges in or around stoves
    • F24B5/021—Combustion-air or flue-gas circulation in or around stoves or ranges in or around stoves combustion-air circulation
    • F24B5/023—Supply of primary air for combustion

Definitions

  • This invention relates to an arrangement for firing solid fuels, comprising a fuel space with an upwardly located, preferably sealable opening for fuel filling-up, the bottom of said space consisting of a grate for supporting fuel to the fuel space and for leading off ash to an ash-space located beneath the grate, at least one intake for adjustable supply of combustion air and a duct connected to a chimney or the like for carrying away the flue gases from the arrangement to said chimney, and that the lead-off duct connected to a fire-place in the lower portion of the fuel space is throttled in the draught direction after said connection and includes in the throttled area a nozzle opening with an area smaller than the duct in general on both sides of said opening, and means are provided to pass combustion air from the intake both to the fire-place of the fuel space and to the nozzle opening in order therein to effect combustion of gases coming from the fuel-hearth in the fire-place of the fuel space.
  • the object of the present invention therefore is to produce an arrangement for the firing of solid fuels which does not show the aforesaid disadvantages, but renders possible a combustion as complete as possible due to a complete distribution of the primary air and due to the special design of the secondary air intake.
  • 1 designates a fuel space, which at its upper portion is provided with an opening 3 for filling-in fuel. Said opening preferably can be sealed by means of a door 2 and has a bottom in the form of a grate 4 for supporting the fuel in the fuel space 1 and for passing ash formed at the combustion to an ash-space 5, which is located beneath said grate 4 and said fuel space 1 and includes a preferably sealable door 6 for removing ash from the ash space.
  • a relatively wide duct 8 is connected which extends to a chimney 7 for conducting away flue gases from the combustion.
  • Said duct 8 is in other respects separated entirely from the fuel space 1 by means of a partition wall 9, which should be provided with incombustible insulation 10 for restricting the heat transfer from the duct 8 to the fuel space 1.
  • a throttling 11 is provided, for example in the form of a perforated plate 12, which has at least one through hole 13, the cross- sectional area of which is smaller than the duct 8 in general on both sides of the throttling.
  • the said throttling acts as a combustion nozzle and is intended to bring about an effective combustion of combustible gases, which come from the fire-place of the fuel space and must pass through the throttling 11, because this is located, seen in the draught direction, after the fire-place of the fuel space which generally is designated by 14.
  • the primary combustion air required for the combustion is supplied both to the fire-place 14 of the fuel space and to the combustion nozzle 11 through a common piping system 15, which by an adjustable damper or draught valve 17 is connected to an intake 16 with adjustable damper or draught valve 17.
  • a common piping system 15 which by an adjustable damper or draught valve 17 is connected to an intake 16 with adjustable damper or draught valve 17.
  • the piping system shown in the drawing comprises a plurality of pipes 18, which extend from the air distribution chamber 19 provided in the connection to said intake 16 inward beneath the fuel space 1, and which at least in their portion facing toward the fuel space 1 are provided with air holes 20, which are arranged in at least two rows and are directed obliquely upward-outward at a relative angle of e.g. 80 to 90°.
  • air holes 20 in the pipes 18 necessary combustion air is supplied to the fire-place 14 of the fuel space in a way distributed over the surface of the fire-place, in order to maintain the combustion in said fire-place, which per se need not be complete, but may take place with a certain air deficit.
  • the combustion shall be such that in the fire-place 14 of the fuel space a more or less glowing or burning fuel-hearth, depending on the amount of supplied air, is maintained, to which hearth new fuel is fed continuously from above as long as fuel is available in the fuel space.
  • the fuel space 1 widens downward to the grate 4 as shown in the drawing.
  • the pipe of said pipes 18 which is located beneath the throttling 11 is provided with an upward pipe neck 21, the end of which located at some distance from the nozzle opening 13 is closed but provided with a number of air holes 22 both at the end and in adjacent wall portions for the supply of necessary primary combustion air to the nozzle opening formed by the throttling 11, which opening thus constitutes the remaining portion of the fire-place of the present arrangement, in which fire-place the combustible gases coming from the fuel-hearth are mixed with the combustion air, which flows out of the air holes 22 of said pipe neck and is preheated by the heat from the fuel-hearth, and thereby are combusted at a high combustion temperature, not the least due to the increase in speed caused by the throttling and the short distance to the fuel-hearth.
  • the intake to the air distribution chamber 19, in which the combustion air is distributed to the different pipes 18, is formed as an exchangeable high-efficiency nozzle 16 and controlled in known manner by means of the draught-valve 17, which is located in front of the intake or nozzle 16 and can be controlled automatically in response to the temperature in or outside the fire-place for obtaining continuous or intermittent draught control, though it is shown in the drawing to be manually adjustable in different draught positions between fully open and fully closed position.
  • the high-efficiency nozzle is shown in the drawing in the form of an exchangeable plate 23 with one or several holes 24 having a total flow area ensuring the supply of an air amount required for high-efficiency combustion at fully open draught valve.
  • an exchangeable idling nozzle in the form of an exchangeable plate 25 is provided in the draught valve, which plate has a small flow hole 26, which permits the passage only of the amount of air required for keeping the fuel hearth alive and in the nozzle opening 13 to effect the combustion of gases coming from the fuel-hearth.
  • pre-heated secondary air can be supplied through an adjustable secondary air damper, which in the drawing is shown to consist of a slide 38 movable in the holder and provided with a plurality of holes 36 located to the side of each other at a predetermined distance.
  • an adjustable secondary air damper which in the drawing is shown to consist of a slide 38 movable in the holder and provided with a plurality of holes 36 located to the side of each other at a predetermined distance.
  • said holes are located directly in front of corresponding holes 37 in the wall to the duct 8, and by moving the slide 38 in its longitudinal direction the damper, thus, can be adjusted by covering the holes 37 entirely or partially, whereby a control of the secondary air is obtained.
  • the secondary air damper can be used for supplying extra combustion air whenever required and also at fully open draught valve 17.
  • the combustion air flowing in through the intake or nozzle 16 thus, is distributed, independently of the position of the draught valve in the distribution chamber 19, to the different pipes 18 and then, in proportions defined by the air holes 20 and, respectively, 22, to the two fireplaces.
  • the combustion air supplied to the nozzle opening 13 is mixed intimately with the gases coming from the fuel hearth whereby an efficient and substantially complete combustion is obtained which substantially is independent of whether the combustion speed is high or low.
  • the flue gases leaving the arrangement according to the present invention are thereby clean and protective to the environment.
  • the fuel space 1 can be connected to the chimney 7 through a door 29 which, thus, must be opened about simultaneously with the door 2.
  • the filling-in door 3 is locked in closed position by a locking arm 32, which is attached to an axle 31 connected to the door 29.
  • the locking arm 32 must be pivoted upward, whereafter by said locking arm the door 29 can be displaced and the fuel space 1 connected to the chimney 7.
  • the door 29 must first be moved back to the position shown in Fig. 1 by means of the locking arm 32, which first thereafter can be pivoted downward for locking the filling-in door 3.
  • Said arm is arranged to co-operate by a clamp nose 33 with guide groove 34 in order to be drawn in to the door 3 by a pressure nose 35 to press on the door 3 and hold it closed in locked position.
  • the partition wall 9 between the fuel space 1 and the duct 8 is at its lower portion and beneath the throttling 11 in the duct 8 formed as fingers 27, along which the fuel can slide and which partly prevent the fuel from gushing in and clogging the space beneath the throttling 11.
  • the grate 4 also is bent upward and by its upward bent portion rests against the pipe neck 21 and against support brackets on the other pipes 18, which brackets however are not shown in the drawing.
  • a grate 28 can be provided beneath the pipes 18, which grate should have a finer mesh than the grate 4. In certain cases it may be sufficient with a grate located beneath the pipe 18.

Claims (6)

1. Anordnung zur Feuerung von festen Brennstoffen, die einen Brennstoffraum (1) mit einer oben placierten, vorzugsweise verschliess baren Öffnung (3) zum Nachfüllen von Brennstoff, wobei der Boden des erwähnten Raums aus einem Rost (4) zur Unterstützung von Brennstoff zum Brennstoffraum und zur Wegleitung von Asche zu einem Aschenraum (5) unter dem Rost besteht, mindestens einen Einlass (16) für justierbare Zuführung von Verbrennungsluft und einen mit einem Kamin (7) oder dergleichen verbundenen Kanal (8) zum Wegschaffen von Verbrennungsgasen von der Anordnung zum erwähnten Kamin umfasst, und dass der mit einem Feuerraum (14) im unteren Teile des Brennstoffraums verbundene Kanal (8) in der Zugrichtung nach dem erwähnten Anschluss gedrosselt wird und in dem gedrosselten Bereich (11) eine Düsenöffnung (13) mit einem Bereich umfasst, der kleiner als der Kanal (18) im allgemeinen beidseitig der erwähnten Öffnung ist, und Mittel (18, 21) vorgesehen sind, um Verbrennungsluft von dem Einlass (16) sowohl zum Feuerraum (14) des - Brennstoffraumes als auch zur Düsenöffnung (13) zu führen, so dass Verbrennung von Gasen darin bewirkt wird, die von der Feuerstelle im Feuerraum des Brennstoffraums kommen, dadurch gekennzeichnet, dass das erwähnte Mittel zur Führung von Primärluft vom Einlass zum Feuerraum (14) und zur Düsenöffnung (13) aus Rohren (18) besteht, die mit Luftlöchern versehen sind, sich vom Einlasse erstrecken und unter der Düsenöffnung (13) und dem Brennstoffraum (1) placiert sind, wobei der Hauptteil der Luftlöcher der erwähnten Rohre nach oben und aussen gerichtet sind, und dass mindestens eines der erwähnten Rohre (18) mit einer Ableitung für Sekundärluft versehen ist, die nahe am Einlasse für Verbrennungsluft angeordnet ist.
2. Anordnung nach Anspruch 1, dadurch gekennzeichnet, dass mindestens eines der erwähnten Rohre (18) mit einem Hals (21) versehen ist, der sich bis die Düsenöffnung (13) erstreckt und mit Luftlöchern (22) versehen ist, um Verbrennungsluft direkt zur Düsenöffnung zu leiten.
3. Anordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Einlass (16) mit einer Hochleistungsdüse versehen und mittels eines Luftschiebers (17) justierbar ist.
4. Anordung nach Anspruch 3, dadurch gekennzeichnet, dass der Luftschieber (17) mit einer auswechselbaren Leerlaufdüse versehen ist, um eine vorbestimmte kleinere Menge von Verbrennungsluft bei vollständig verschlossenem Luftschieber zuzuführen.
5. Anordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Brennstoffraum (1) gegen sein unteres Teil breiter wird, um Selbstspeisung von Brennstoff zur Feuerstelle zu besorgen.
6. Anordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein justierbarer Luftschieber (36-38) für Sekundärluft vorgesehen ist, um sekundäre Verbrennungsluft zur Düsenöffnung (13) zu führen.
EP80900738A 1980-04-16 1980-04-16 Anordnung zum brennen fester brennstoffe Expired EP0058658B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80900738T ATE17036T1 (de) 1980-04-16 1980-04-16 Anordnung zum brennen fester brennstoffe.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE1980/000107 WO1981003057A1 (en) 1980-04-16 1980-04-16 Arrangement for firing solid fuels

Publications (2)

Publication Number Publication Date
EP0058658A1 EP0058658A1 (de) 1982-09-01
EP0058658B1 true EP0058658B1 (de) 1985-12-18

Family

ID=20339904

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80900738A Expired EP0058658B1 (de) 1980-04-16 1980-04-16 Anordnung zum brennen fester brennstoffe

Country Status (5)

Country Link
EP (1) EP0058658B1 (de)
AT (1) ATE17036T1 (de)
AU (1) AU5987580A (de)
DE (1) DE3071296D1 (de)
WO (1) WO1981003057A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE24237T1 (de) * 1982-12-22 1986-12-15 Welger Geb Feuerungsanlage fuer stroh oder aehnliches material.
FR2564951B1 (fr) * 1984-05-28 1989-06-16 Guerton Sa Incinerateur, notamment pour la combustion de dechets industriels
IT1391701B1 (it) * 2008-11-07 2012-01-17 Nordica Spa Apparecchio riscaldante alimentato a combustibile solido a struttura perfezionata
ES2530318B1 (es) * 2015-01-29 2015-10-21 Pedro José PANADERO GÓMEZ Estufa polivalente

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2508485A1 (de) * 1975-02-27 1976-09-09 Kueppersbusch Kohlenherd

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1151741A (en) * 1965-04-14 1969-05-14 Radiation Ltd Solid Fuel Heating Appliance
GB1176944A (en) * 1966-06-01 1970-01-07 Coal Industry Patents Ltd Solid Fuel Combustion Apparatus
AT306968B (de) * 1971-04-30 1973-05-10 Hahn Stefan Rauchlose Füllschachtverbrennungsanlage
US3874362A (en) * 1974-04-11 1975-04-01 Alexander Kapustin Space heating device using solid fuel
GB1465401A (en) * 1975-01-20 1977-02-23 Glynwed Domestic Heating Appli Solid fuel heating appliances
DE2503485A1 (de) * 1975-01-29 1976-08-05 Thimm Max Kombinierte zu- und abluftsteuerung an kolbenluftmotoren
GB1544311A (en) * 1977-11-28 1979-04-19 Husa M Combustion air supply for firebox
GB2011065B (en) * 1977-12-19 1982-03-24 Coal Industry Patents Ltd Solid fuel combustion appliance

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2508485A1 (de) * 1975-02-27 1976-09-09 Kueppersbusch Kohlenherd

Also Published As

Publication number Publication date
WO1981003057A1 (en) 1981-10-29
AU5987580A (en) 1981-11-10
ATE17036T1 (de) 1986-01-15
EP0058658A1 (de) 1982-09-01
DE3071296D1 (en) 1986-01-30

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