EP0271392A1 - Feststoffbefeuerter Heizkessel und insbesondere Holzbefeuerter Heizkessel - Google Patents

Feststoffbefeuerter Heizkessel und insbesondere Holzbefeuerter Heizkessel Download PDF

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Publication number
EP0271392A1
EP0271392A1 EP87402610A EP87402610A EP0271392A1 EP 0271392 A1 EP0271392 A1 EP 0271392A1 EP 87402610 A EP87402610 A EP 87402610A EP 87402610 A EP87402610 A EP 87402610A EP 0271392 A1 EP0271392 A1 EP 0271392A1
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
boiler
ashtray
boiler according
storage area
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
EP87402610A
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English (en)
French (fr)
Other versions
EP0271392B1 (de
Inventor
Joseph Le Mer
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.)
Bosch Thermotechnologie SAS
Original Assignee
Geminox SAS
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 Geminox SAS filed Critical Geminox SAS
Priority to AT87402610T priority Critical patent/ATE63782T1/de
Publication of EP0271392A1 publication Critical patent/EP0271392A1/de
Application granted granted Critical
Publication of EP0271392B1 publication Critical patent/EP0271392B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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
    • F24H1/0063—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters using solid fuel
    • 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
    • F24H2230/00—Solid fuel fired boiler

Definitions

  • the invention relates to a solid fuel boiler and more particularly to a wood boiler.
  • the boiler described comprises a jacket of water to be heated and a fuel storage zone, which is arranged above a combustion chamber from which it is separated by a hearth provided with at least one communication passage between the storage area and said combustion chamber, while the latter is partly surrounded by the water jacket and communicates with a smoke box.
  • the present invention relates to a boiler of this type.
  • the floor of the combustion chamber is provided with a number of conduits which are formed by a sheet bent in a zig-zag and which are intended to be traversed by the combustion gases, which then escape into the smoke box which is arranged at the rear of the boiler and which is provided, in its lower part, with an ashtray.
  • One of the drawbacks of such a device lies in the inevitable fouling of the combustion gas circulation conduits, and in the difficulty that there is in cleaning them.
  • the boiler according to the invention is remarkable in that the passage of the hearth is extended by a cuff which opens into the upper part of the combustion chamber in which an ashtray is arranged.
  • the ashtray is a drawer ashtray, formed by a base plate surmounted by an envelope, which is closed at one of its ends on the side of the smoke box, and which provides a space between it and the wall. of the combustion chamber, so as to allow circulation and heat exchange of the combustion gases in said space, while the sleeve crosses said space to open into the upper part of the ashtray.
  • the exchange surface is increased by providing fins in said circulation and heat exchange space.
  • the water jacket partially envelops the top of the combustion chamber, so that the cuff is, in part, substantially in contact with or in the vicinity of said water jacket.
  • the wall of the combustion chamber and the envelope of the ashtray are substantially parallel. More preferably, the wall of the combustion chamber and the envelope of the ashtray each have a shape of a vault.
  • the cuff has a horizontal section which decreases steadily downwards and rims folded inwards at its end. lower.
  • said storage door loading has a passage which is formed between a front wall and a refractory part and which communicates in its lower part with the air register and in its upper part with the storage area in such a way that the combustion air cools the wall of the facade of said door while heating up.
  • the water jacket advantageously comprises a part in contact with the lower part of the combustion chamber.
  • the ashtray can rest on the lower part of said combustion chamber by means of at least one removable insulating element.
  • the boiler shown comprises, in the upper part, a zone 1 for loading and storage for solid fuel such as wood logs 2.
  • This storage area 1 is accessible by a loading door 3.
  • the storage area 1 is delimited downwards by a sole 4 minie with a central passage 5 (FIG. 2).
  • the sole 4 is formed here by two refractory blocks, assembled together by providing an oblong central lumen which constitutes the passage 5.
  • a combustion chamber 6 in the shape of a vault, as shown in FIG. 2, and in which is removably arranged, a drawer ashtray 7, constituted by a base plate 7a and an envelope 7b in the form of a vault substantially parallel to the upper wall of the chamber 6 with which it forms a space 8.
  • the passage 5 of the hearth 4 is extended by a cuff 9 which crosses the space 8 to come out into the upper part of the casing 7b of the ashtray 7, the casing being provided with a light whose shape corresponds to that of the base of the cuff facing said envelope.
  • the cuff 9, made of refractory stainless steel for example, has a horizontal section whose surface is regularly decreasing downwards with, for example, a geometric shape (considered in the inverted direction), trapezoid, heap of sand, pyramid trunk or as shown in Figure 3.
  • Said cuff has two flanges 9a folded outwards (FIG. 3) over its large opening, intended to come to rest or become trapped under the blocks constituting the sole 4 and flanges 9b folded inwards (FIGS. 3 to 5) at its lower end facing the ashtray 7.
  • the ashtray 7 is slidably mounted in the chamber 6, so that it can be removed by a door 10 which is arranged on the front (FIG. 1) and which is provided with a refractory material 11 and a glazed manhole 12 of flame control.
  • the envelope 7b of the ashtray 7 is open on the side of said door 10 but closed on the opposite side by a bottom 13, while the space 8 opens into a smoke box 14, the upper part of which is provided with a conduit evacuation 15.
  • the storage zone 1 is also delimited internally by a wall 16 while the boiler is surrounded by an external envelope 17 coated with an insulating jacket 18.
  • said water jacket 19 passes below and above the chamber 6, the cuff 9 being in the immediate vicinity of said jacket. of water.
  • the water jacket 19 is obviously connected in a conventional manner to the pipes for the flow and return of heating water from the installation to be fitted.
  • an air register 22 On the side of the boiler, which is shown diagrammatically at 21 in FIG. 6, an air register 22 is provided, the inlet orifice 23 of which is adjustable by a spring screw 24.
  • the orifice air inlet 23 ( Figure 6) communicates with a box 25 ( Figure 1) which caps another box 26 with a fan 27.
  • the fan 27 is controlled by an aquastat not shown.
  • the oxidizing air after passing through the box 26, arrives through suitable orifices in a passage 28 (FIG. 1) which is formed between a wall 29 of the front of the door 3 and a refractory element 29 'with which the said door is provided.
  • An orifice 30 placed at the top of the door 3 allows the air to arrive in the upper part of the loading area 1.
  • an outlet orifice 31 is formed at the rear of said storage area.
  • the outlet orifice 31 opens into the smoke box, substantially coaxial with the exhaust duct 15, while a shutter 32 is provided for opening or closing said outlet orifice 31 by means of a pull tab 33.
  • the pull tab 33 is arranged in such a way that, to open the shutter, the pull pull must be pushed inwards and to close the shutter, on the contrary, the pull pull must be pulled out.
  • the position and the shape of the rotary handle 34, provided for the opening of the door 3 are such that it is possible to turn said handle only when the pull tab 33 is in the position pushed towards the interior. In this way, it is not possible to open the door 3 without first pushing the pull tab 33 and therefore, opening the shutter 32.
  • the ashtray 7 rests on the lower part of the chamber 6, which is in contact with part of the water jacket 19, by means of two rods 35 and an insulating element 36 (such as asbestos plates) which is removably arranged.
  • an insulating element 36 such as asbestos plates
  • a coil 37 with fins is placed in the upper part of the boiler (FIG. 1), in the water jacket, in order to allow the heating of a domestic hot water tank (not shown) and by means of a thermal soup, cooling the boiler in the event of overheating.
  • the combustion air arrives in the passage 28 of the door 3 so that while cooling the wall 29 of the said door, the air heats up on the refractory portion 29 ⁇ , which promotes combustion.
  • the bottom of the storage zone 1, at the level of the hearth 4 constitutes a primary combustion zone, and the products resulting from this combustion mix and reconcentrate in the cuff 9 which opens into the ashtray 7.
  • the ashtray 7 thus forms a real secondary combustion chamber in which the combustion of the embers shown diagrammatically at 38 can be completed (FIG. 1).
  • the combustion gases from the ashtray 7 can only escape through the opening towards the front of the envelope 7b of said ashtray (which is closed towards the rear by 13) to then return through the space 8 towards the bottom of the smoke box 14 ( Figure 1).
  • the space 8 thus constitutes a space for circulation and heat exchange of the combustion gases, the exchange surface being increased by the fins 20 arranged in said space, which thus becomes a true exchanger. It is clear that the water which circulates in the jacket 19 heats up on contact, of the wall 16 in the zone 1, of the external surface of the chamber 6 and of the external envelope 17 of the boiler in its rear part arranged in the smoke box 14.
  • the construction and shape of the ashtray allow for smooth operation and extremely easy cleaning.
  • the ashtray 7 is easily positioned between the door 11 and the bottom of the boiler, so that the cuff 9 is necessarily perpendicular to the corresponding light, formed in the envelope 7b of said ashtray.
  • the removal of the ashtray 7 provides quite remarkable access to the bottom of the box. smoke and fins 20.
  • the cleaning of said fins is greatly facilitated, even though their substantially radial arrangement in the upper part of an arch, reduces the risk of fouling.
EP87402610A 1986-11-21 1987-11-19 Feststoffbefeuerter Heizkessel und insbesondere Holzbefeuerter Heizkessel Expired - Lifetime EP0271392B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87402610T ATE63782T1 (de) 1986-11-21 1987-11-19 Feststoffbefeuerter heizkessel und insbesondere holzbefeuerter heizkessel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8616239 1986-11-21
FR8616239A FR2607227B1 (fr) 1986-11-21 1986-11-21 Chaudiere a combustible solide et, plus particulierement, chaudiere a bois

Publications (2)

Publication Number Publication Date
EP0271392A1 true EP0271392A1 (de) 1988-06-15
EP0271392B1 EP0271392B1 (de) 1991-05-22

Family

ID=9341067

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87402610A Expired - Lifetime EP0271392B1 (de) 1986-11-21 1987-11-19 Feststoffbefeuerter Heizkessel und insbesondere Holzbefeuerter Heizkessel

Country Status (4)

Country Link
EP (1) EP0271392B1 (de)
AT (1) ATE63782T1 (de)
DE (1) DE3770248D1 (de)
FR (1) FR2607227B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT398338B (de) * 1987-11-06 1994-11-25 Ackermann Karl Heizungskessel mit einem oben angeordneten brennstoff-füllraum
EP2314947A3 (de) * 2009-10-23 2014-11-19 Heribert Posch Feststoff-Brennvorrichtung mit Wärmetauscher zur Wärmeübertragung an einen Flüssigkeits-Kreislauf

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014106080A1 (de) * 2014-04-30 2015-11-05 Ulrich Brunner GmbH Sicherheitswärmetauscher einer Heizeinrichtung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US914923A (en) * 1905-11-20 1909-03-09 Edwin R Cahoone Heating-stove.
FR773519A (fr) * 1933-05-22 1934-11-21 Perfectionnements dans les foyers pour chaudières
CH223250A (de) * 1941-08-07 1942-09-15 Schweizerischer Verband Fuer W Feuerungsanlage für Kachelöfen und Warmwasserkessel.
US2660997A (en) * 1949-10-22 1953-12-01 Newark Stove Company Stove and ash discharge means therefor
EP0124945A2 (de) * 1983-05-06 1984-11-14 Van der Voort, Eduard Thomas Jacobus Wärmeerzeuger
US4516534A (en) * 1984-03-16 1985-05-14 Unical S.P.A. Steel construction solid-fuel firing boiler for civil heating applications
GB2172989A (en) * 1985-03-08 1986-10-01 Glynwed Consumer & Building Wood burning stove

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US914923A (en) * 1905-11-20 1909-03-09 Edwin R Cahoone Heating-stove.
FR773519A (fr) * 1933-05-22 1934-11-21 Perfectionnements dans les foyers pour chaudières
CH223250A (de) * 1941-08-07 1942-09-15 Schweizerischer Verband Fuer W Feuerungsanlage für Kachelöfen und Warmwasserkessel.
US2660997A (en) * 1949-10-22 1953-12-01 Newark Stove Company Stove and ash discharge means therefor
EP0124945A2 (de) * 1983-05-06 1984-11-14 Van der Voort, Eduard Thomas Jacobus Wärmeerzeuger
US4516534A (en) * 1984-03-16 1985-05-14 Unical S.P.A. Steel construction solid-fuel firing boiler for civil heating applications
GB2172989A (en) * 1985-03-08 1986-10-01 Glynwed Consumer & Building Wood burning stove

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT398338B (de) * 1987-11-06 1994-11-25 Ackermann Karl Heizungskessel mit einem oben angeordneten brennstoff-füllraum
EP2314947A3 (de) * 2009-10-23 2014-11-19 Heribert Posch Feststoff-Brennvorrichtung mit Wärmetauscher zur Wärmeübertragung an einen Flüssigkeits-Kreislauf

Also Published As

Publication number Publication date
FR2607227B1 (fr) 1989-04-07
FR2607227A1 (fr) 1988-05-27
ATE63782T1 (de) 1991-06-15
EP0271392B1 (de) 1991-05-22
DE3770248D1 (de) 1991-06-27

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