EP0046152A1 - Poêle à air chauffé pour combustibles solides - Google Patents

Poêle à air chauffé pour combustibles solides Download PDF

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Publication number
EP0046152A1
EP0046152A1 EP80107135A EP80107135A EP0046152A1 EP 0046152 A1 EP0046152 A1 EP 0046152A1 EP 80107135 A EP80107135 A EP 80107135A EP 80107135 A EP80107135 A EP 80107135A EP 0046152 A1 EP0046152 A1 EP 0046152A1
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
warm air
air oven
combustion
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Withdrawn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
EP80107135A
Other languages
German (de)
English (en)
Inventor
Alfred Büchner
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.)
H U W Fritzen & Co GmbH
Original Assignee
H U W Fritzen & Co GmbH
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 H U W Fritzen & Co GmbH filed Critical H U W Fritzen & Co GmbH
Publication of EP0046152A1 publication Critical patent/EP0046152A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • F24B5/026—Supply of primary and secondary air for combustion
    • 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
    • F24B5/04—Combustion-air or flue-gas circulation in or around stoves or ranges in or around stoves the air or gas passing downwards through the bottom of the stove of fire grate
    • 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
    • F24B7/00—Stoves, ranges or flue-gas ducts, with additional provisions for convection heating 
    • F24B7/04—Stoves, ranges or flue-gas ducts, with additional provisions for convection heating  with internal air ducts
    • 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
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
    • F24H3/067—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators using solid fuel

Definitions

  • the invention relates to a warm air furnace for fuels with a fan to achieve an air flow, part of which branches off as combustion air and is supplied to an elongated combustion chamber partly in the area of the grate and partly above it, while the main part of the air flows around the combustion chamber and is heated like this.
  • Such a device is described for example in AT-PS 152 9o3.
  • the air is supplied in the area of the grate below the grate via an air supply device which extends over only a fraction of the grate surface, so that an increased oxygen supply takes place in part of the grate, while in the largest part of the grate to little oxygen is supplied.
  • the furnace is designed as a top-firing furnace, the combustion air being supplied in the upper region of the combustion chamber via a channel which opens above the furnace, the air having the task of increasing the chimney draft.
  • manual loading is provided, since it is not possible to load the combustion chamber or combustion chamber from above through the area into which the exhaust gases are extracted.
  • the invention has for its object to provide a furnace which can be fed continuously, which ensures continuous combustion and in which the combustion can be carried out depending on the material to be burned so that no environmental pollution caused by the flue gases.
  • the invention provides that an elongate combustion chamber is provided, the combustion air being supplied in the area of the fire grate, namely over the entire length of the combustion chamber, while a further supply of combustion air above the fire grate.
  • the flue gas duct is located below the fire grate and the furnace is operated via a forced supply of combustion air, which means that both the flue gas speed and the combustion speed can be determined.
  • an ember bed is formed above the actual fire grate, which is characterized by the height, i.e. the distance of the upper air supply is determined and varied. Above this ember bed there is a closed layer of supplied combustion material and the flue gases generated in the border area between the ember bed and the supplied combustion material must penetrate the embers bed and are burned here in order to reach the exhaust gas nozzle. In addition, there is a complete combustion of all smoke gases generated by the supply of combustion air below the fire grate.
  • the air is supplied to the furnace at the front of the furnace, so that the cold air must flow over the hot end of the furnace before it enters the heat exchanger channels, on the other hand, the air, which serves as combustion air, is preheated that the supplied combustion air is heated relatively strongly, since it is already at the hottest point. of the oven, namely on the front side of the oven facing away from the loading side comes into contact with the oven.
  • the air has a temperature of 5oo to 6 00 °, whereby an advantageous combustion is achieved.
  • 1 denotes an oven door and 2 denotes a connection for a blower, the oven generally bearing reference number 3.
  • 4 designates an outer jacket of the furnace, while an exhaust gas chimney can be seen at 5.
  • the combustion chamber of the furnace 3 bears the reference number 6, a firing grate at 7 being schematically recognizable in FIG. 2.
  • the firing grate can consist of individual grate bars that are loosely mounted on corresponding support struts, so that if a grate bar is damaged it can be easily replaced.
  • the oven door 1 can have appropriate thermal insulation, as can the ash door 31 which enables access to the ashtray.
  • Fig. 1 are designated 12 and 14 air flaps, the air supply pipes 16 and 18 complete with respect to the air supply and which can be adjusted by means of schematically recognizable devices at 15 by hand or by motor, this adjustment being able to take place, for example, thermostatically controlled in such a way that by correspondingly more or less open the flaps 12 and 14, the required combustion air is supplied to the combustion chamber 6 to the desired extent.
  • the combustion air enters the combustion chamber 6 via the air supply lines 16 and 18, which can be seen more clearly in FIG. 2, the air supply lines 16 being below the fire grate 7, while the air supply lines 18 are arranged at a certain distance above the fire grate.
  • the actual glow bed is defined by this distance of the air supply lines 16 and 18, which is indicated in the drawing by appropriate hatching and the reference letter G carries.
  • this ember bed G there is a fuel supply which generally bears the reference symbol B, this fuel supply being supplied via a feed pipe 11 which is indicated above the furnace door 1 and which, for example, holds a screw 30.
  • the screw 3o has a smaller diameter than the feed pipe 11 and is arranged eccentrically within this feed pipe 11 at the bottom of the pipe, so that it is possible to take larger chunks of solid fuel through this screw without problems.
  • the screw is preferably controlled by an automatic control device 32, which then activates the screw when a free space is created within the fuel supply area B, so that this control ensures that a closed fuel supply is always above the ember bed G within the combustion chamber 6 is available.
  • the smoldering gases generated in the border area between the ember bed G and the fuel supply B are pressed through the ember bed G and are completely burned in this way.
  • an exhaust pipe 19 is provided, which opens into the actual exhaust gas inlet 20, the exhaust pipe 19 extending over a large part of the length of the furnace.
  • the flue gas duct 2o has a relatively large cross section in the region of the flue gas connector 19, this cross section tapering upwards towards the flue gas stack 5, so that in the region of the entry of the combustion gases through the flue gas duct 19 into the flue gas stack 2o there is a relatively quiet exhaust gas flow.
  • Retainer sieves 8 and 9 or flue gas filters are used within the flue gas connection 2o in the area of the entry of the flue gases, which can be designed as perforated plates and serve to hold the fly ash in place, the perforation or permeability preventing vortices from forming in the flue gases that can otherwise carry ash particles.
  • the retention screens 8 and 9 may be integrally formed with an ash box 1 0, which can be emptied via an appropriate handling device 33 to the outside through the door 31st The retention effect can be further improved by kinking the upper edges of the screens 8 and 9.
  • FIG. 1 The arrows A drawn in FIG. 1 denote the exhaust gas flow, while those shown separately in FIG. 1 Arrows L illustrate the fresh air supply.
  • combustion air is fed via the blower, not shown in the drawing, into an air collector 34, from which part of the air enters the air supply lines 18 and 16 as combustion air, controlled via the flaps 12 and 14, while the other Part of the air as service air to be heated follows the path of the arrows L, ie flows through the heat exchanger rooms 21 and reaches a warm air collecting hood 35, from which the air can then be guided to its point of use.
  • the actual combustion chamber 6 rests with its walls, in particular in the area of the front end, i.e. So at the blower connection end, on a corresponding slide bearing, so that movements of this cylinder are possible without difficulty due to the thermal expansion.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Solid-Fuel Combustion (AREA)
EP80107135A 1980-08-18 1980-11-18 Poêle à air chauffé pour combustibles solides Withdrawn EP0046152A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3031184 1980-08-18
DE19803031184 DE3031184C2 (de) 1980-08-18 1980-08-18 Warmluftofen für feste Brennstoffe

Publications (1)

Publication Number Publication Date
EP0046152A1 true EP0046152A1 (fr) 1982-02-24

Family

ID=6109876

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80107135A Withdrawn EP0046152A1 (fr) 1980-08-18 1980-11-18 Poêle à air chauffé pour combustibles solides

Country Status (2)

Country Link
EP (1) EP0046152A1 (fr)
DE (1) DE3031184C2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3602285A1 (de) * 1986-01-25 1987-07-30 Energetec Ges Fuer Energietech Warmluftofen fuer feste brennstoffe
WO1988008942A1 (fr) * 1987-05-06 1988-11-17 Oedekoven, Wolf-Dieter Four, notamment pour bruler des combustibles solides
DE102006032497A1 (de) * 2006-07-05 2008-01-10 Dreißiger, Andrea Holzofen
EP2615369A1 (fr) * 2012-01-16 2013-07-17 Cheap Heat B.V. Dispositif de chauffage
CN110567154A (zh) * 2019-09-19 2019-12-13 姜立明 一种热气产生装置及其用途、家用热炕系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1954923A (en) * 1930-10-20 1934-04-17 Edwin F Eichhorn Stove or furnace
AT152903B (de) * 1935-01-10 1938-03-25 Alois Vyskovsky Heizofen.
DE1796263U (de) * 1959-06-09 1959-09-24 A E Greaves & Son Ltd Vorrichtung zur erhitzung stroemender medien.
CH405668A (de) * 1962-05-12 1966-01-15 Hovalwerk Ag Ospelt Heizungskessel
DE1579624A1 (de) * 1966-01-21 1970-08-06 J D Wehrenbold & Sohn Gmbh Unterbrandofen
US4194487A (en) * 1976-08-02 1980-03-25 Cadwallader John Y Downdraft woodburning stove

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2929715C2 (de) * 1979-07-21 1982-12-23 H. u. W. Fritzen- GmbH & Co, 4420 Coesfeld Warmluftofen für feste Brennstoffe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1954923A (en) * 1930-10-20 1934-04-17 Edwin F Eichhorn Stove or furnace
AT152903B (de) * 1935-01-10 1938-03-25 Alois Vyskovsky Heizofen.
DE1796263U (de) * 1959-06-09 1959-09-24 A E Greaves & Son Ltd Vorrichtung zur erhitzung stroemender medien.
CH405668A (de) * 1962-05-12 1966-01-15 Hovalwerk Ag Ospelt Heizungskessel
DE1579624A1 (de) * 1966-01-21 1970-08-06 J D Wehrenbold & Sohn Gmbh Unterbrandofen
US4194487A (en) * 1976-08-02 1980-03-25 Cadwallader John Y Downdraft woodburning stove

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3602285A1 (de) * 1986-01-25 1987-07-30 Energetec Ges Fuer Energietech Warmluftofen fuer feste brennstoffe
WO1988008942A1 (fr) * 1987-05-06 1988-11-17 Oedekoven, Wolf-Dieter Four, notamment pour bruler des combustibles solides
DE102006032497A1 (de) * 2006-07-05 2008-01-10 Dreißiger, Andrea Holzofen
DE102006032497B4 (de) * 2006-07-05 2008-06-19 Dreißiger, Andrea Holzofen
EP2615369A1 (fr) * 2012-01-16 2013-07-17 Cheap Heat B.V. Dispositif de chauffage
CN110567154A (zh) * 2019-09-19 2019-12-13 姜立明 一种热气产生装置及其用途、家用热炕系统

Also Published As

Publication number Publication date
DE3031184A1 (de) 1982-03-04
DE3031184C2 (de) 1984-05-10

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT BE CH DE FR NL SE

17P Request for examination filed

Effective date: 19820201

STAA Information on the status of an ep patent application or granted ep patent

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18W Application withdrawn

Withdrawal date: 19840613

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BUECHNER, ALFRED