EP1830126B1 - Heizkessel für Bio-Festbrennstoffe - Google Patents

Heizkessel für Bio-Festbrennstoffe Download PDF

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Publication number
EP1830126B1
EP1830126B1 EP07003972A EP07003972A EP1830126B1 EP 1830126 B1 EP1830126 B1 EP 1830126B1 EP 07003972 A EP07003972 A EP 07003972A EP 07003972 A EP07003972 A EP 07003972A EP 1830126 B1 EP1830126 B1 EP 1830126B1
Authority
EP
European Patent Office
Prior art keywords
draught
chute
heating boiler
duct
air supply
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.)
Active
Application number
EP07003972A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1830126A1 (de
Inventor
Leo Dworiankin
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.)
Viessmann Werke GmbH and Co KG
Original Assignee
Viessmann Werke GmbH and Co KG
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 Viessmann Werke GmbH and Co KG filed Critical Viessmann Werke GmbH and Co KG
Priority to PL07003972T priority Critical patent/PL1830126T3/pl
Publication of EP1830126A1 publication Critical patent/EP1830126A1/de
Application granted granted Critical
Publication of EP1830126B1 publication Critical patent/EP1830126B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F23B50/00—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone
    • F23B50/02—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel forming a column, stack or thick layer with the combustion zone at its bottom
    • F23B50/06—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel forming a column, stack or thick layer with the combustion zone at its bottom the flue gases being removed downwards through one or more openings in the fuel-supporting surface
    • 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
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B80/00—Combustion apparatus characterised by means creating a distinct flow path for flue gases or for non-combusted gases given off by the fuel
    • 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

Definitions

  • the invention relates to a boiler for bio-solid fuels according to the preamble of patent claim 1.
  • a boiler for bio-solid fuels of the type mentioned is according to the DE 196 12 045 A1 known.
  • This consists of a housing having a primary air supply having fuel filling space, under which, divided by an intermediate bottom, an ash collection chamber is arranged, wherein arranged in the intermediate floor provided with a secondary air supply, leading to the ash collection chamber and formed in the form of a downcomer gasification and combustion zone is, from the lower end of the downdraft shaft from a transversely oriented to the axis of the downdraft shaft, going off into the ash collection chamber Ausbrandkanal goes off.
  • Another boiler of the type mentioned further is according to DE 37 37 661 A1 known.
  • the filling chamber is separated from the downstream combustion chamber by a floor plate made of fireclay which is flat towards the filling space and has a slot which extends over the entire filling space depth and leads into a so-called hot combustion chamber shaped like a heart-shaped cross-section in the base plate. in the center extends a secondary air supply pipe.
  • the burnout channel is curved in the main flow direction.
  • the essence of the invention consists in providing the combustion channel from the downflow channel to the ash collection chamber not directly radially (ie rectilinearly), but at least with a curvature which has the consequence that the burnout zone, despite the compact design of the housing, is comparatively long.
  • main flow direction is to understand the direction of the flow, which covers the gas from the end of the downcomer shaft to the mouth of the burnout channel.
  • Possible turbulence-caused flow components in the transverse direction to the main flow direction are conducive to combustion, but irrelevant for the definition of the main flow direction.
  • the filling space side is covered with a rust downdraft shaft, on the one hand in contrast to a longitudinal slot-like gas introduction from the filling ago ever for a targeted radially oriented and thus uniformed gas inlet provided in the gasification and combustion zone, wherein
  • the wall of the downcomer shaft contains the secondary air supply, the cross section of the downcomer shaft is not reduced by an internal secondary air supply.
  • burnout channel is to be understood in the sense of a gas line.
  • the outgoing from the end of the downcomer outbreak channel is in a particularly preferred embodiment spirally or approximately spirally extending to its mouth in the ash collection.
  • spirally or approximately spirally is to be understood, for example, a more or less long circular arc guide the Ausbrandkanales, this being dimensioned in its length at least the length of the downdraft shaft accordingly.
  • this filling space side is preferably designed in the form of a funnel.
  • the intermediate bottom taking into account production engineering aspects, from a funnel with its mouth containing the first bottom part formed, to which a downdraft shaft, the secondary air supply ducts and the Ausbrandkanal containing another, arranged in the ash collection chamber, second bottom part is connected, in turn, the second bottom part of an upper part and a lower part is formed.
  • the upper and lower parts are forming their parting plane in each case open halves of the Ausbrandkanales.
  • the second bottom part is provided to the overlying first bottom part out with a loop-like manner containing the air supply channels connecting web.
  • the second bottom part on the upper side and the first bottom part are arranged on the underside of a housing the Aschfallsammelraum from the filling space, provided with Fallstromschacht tillgriffsö réelle housing wall, which will be explained in more detail.
  • the housing is at least above the Aschfallsammelraumes water-leading and provided in a known manner with flow and return connections, in which case one or more leading to an exhaust connection, from the ash collection space upwards outgoing, the flue gas outlet forming flues the water-bearing part of the housing succeed.
  • the boiler for bio-solid fuels consists of a housing having an upper, a primary air supply 4 having fuel filling chamber 2, under which, divided by an intermediate bottom 9, an ash collection chamber 6 is arranged with flue 7, wherein in the intermediate bottom 9 provided with a secondary air supply 5, leading to ash collection room 6 and in the form of a downdraft 8 formed gasification and combustion zone 3 is arranged, wherein from the lower end 12 of the downcomer 8 from a transversely to the axis of the downdraft 8 oriented, in the ash collection chamber 6 ausmündender burnout channel 13 goes off.
  • the filling space 2 is accessible through a closable filling opening 28 and the ash collecting space 6 through a closable maintenance and removal opening 29.
  • the burnout channel 13 is curved in the main flow direction.
  • This burnout channel 13 which starts from the end of the downcomer 8, extends as in FIG. 2 and 3 clarifies, spirally or approximately helical or spiral up to its orifice 14 in the ash collection chamber 6. Under spirally extending is any continuous, arcuate or circular arc-shaped leadership of the burnout 13, which does not extend directly from the centric downflow duct 8 radially to the ash collecting space 6.
  • the burnout channel 13 is longer than the downdraft shaft 8, preferably more than twice as long as the downdraft shaft 8 is formed. This requirement leads to a very long burn-out with a compact design of the boiler.
  • the intermediate bottom 9 is with reference to the FIGS. 1 and 2
  • the intermediate bottom 9 is formed from a funnel 10 with its mouth containing bottom part 15, to which a downdraft 8, the secondary air supply 5 and the air supply ducts 17 and the burnout 13 containing further, arranged in the ash collection chamber 6, second bottom part 16 is connected , wherein advantageously the second bottom part 16 is in turn formed from an upper part 32 and a lower part 18.
  • These upper 32 and lower parts 18 form in this case to their parting plane E open towards halves of the burnout channel 13, which form in the assembled state the up to the inlet and outlet opening (orifice 14) all around closed line-like burnout channel 13.
  • the design of the falling current shaft upper part in the bottom part 15 of the intermediate bottom 9 may be preferred, but does not necessarily have to, as in FIG. 1 shown, executed, ie with a separately insertable nozzle block 31 or support ring for the grate eleventh
  • the second bottom part 16 to the first bottom part 15 is provided with a loop-like manner containing the air supply channels 17 connecting web 19 which is surrounded by a further web 33 which forms with its ends the junction 25 of the secondary air and thus to an opening (not shown) is connected in the wall of the ash collection room 6.
  • FIG. 1 For the arrangement of the intermediate bottom 9 to the lower boundary of the filling space 2, are as out FIG. 1 can be seen, the first bottom part 15 on the underside and the second bottom part 16 on the upper side at a the ash collecting space 6 from the fuel filling chamber 2 separating, provided with falling current passage opening 21 housing wall 20 is arranged.
  • thermally insulated matterssockelt on a support 27.
  • the housing may be provided with an outer heat insulation and in particular in the ash collection chamber 6 arranged heat exchanger elements, the housing is preferably at least above the ash collection chamber 6 doppelwanding formed water leading and provided with flow and return ports 22, 34, in which case to an exhaust port 23rd leading outgoing from the ash collection chamber 6, the flue gas outlet 7 forming hot gas trains 24 pass through the water-bearing part of the housing.
  • corresponding channels 26 penetrating the water-bearing space are provided for the primary air supply to the primary air openings 30.
  • the secondary air supply 5 to the loop-like, in the upper region of the downcomer 8 outflowing air supply channels 17 takes place from the outside directly through the junction 25 (see FIG. 4 ). Not particularly shown is the preferably sensor-controlled controllability of the secondary air supply in order to ensure optimum combustion under all load conditions.

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)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Beans For Foods Or Fodder (AREA)
  • Treatment Of Sludge (AREA)
  • Cereal-Derived Products (AREA)
EP07003972A 2006-03-01 2007-02-27 Heizkessel für Bio-Festbrennstoffe Active EP1830126B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07003972T PL1830126T3 (pl) 2006-03-01 2007-02-27 Kocioł grzejny na biologiczne paliwo stałe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006009335A DE102006009335A1 (de) 2006-03-01 2006-03-01 Heizkessel, insbesondere für Bio-Festbrennstoffe

Publications (2)

Publication Number Publication Date
EP1830126A1 EP1830126A1 (de) 2007-09-05
EP1830126B1 true EP1830126B1 (de) 2008-10-08

Family

ID=38007595

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07003972A Active EP1830126B1 (de) 2006-03-01 2007-02-27 Heizkessel für Bio-Festbrennstoffe

Country Status (6)

Country Link
EP (1) EP1830126B1 (da)
AT (1) ATE410643T1 (da)
DE (2) DE102006009335A1 (da)
DK (1) DK1830126T3 (da)
PL (1) PL1830126T3 (da)
RU (1) RU2007133013A (da)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007009295U1 (de) * 2007-07-03 2007-10-18 Robert Bosch Gmbh Festbrennstoff-Heizkessel
DE202008000034U1 (de) 2008-04-08 2008-07-03 Dörl, Bernd Heizkessel für Bio-Festbrennstoffe
AT507680B1 (de) * 2009-02-24 2010-07-15 Ligno Heizsysteme Gmbh Füllraumauskleidung für brandkessel
CN101813327B (zh) * 2010-04-22 2011-09-14 哈尔滨工业大学 户用上吸式无焦油生物质气化直燃炉
DE202014101757U1 (de) * 2014-04-14 2014-06-13 Ludwig Bräutigam Brenneinsatz für Sturzbrandöfen
DE202014103421U1 (de) 2014-07-24 2014-08-06 Bernd Dörl Heizkessel für Festbrennstoffe
MD1128Z (ro) * 2016-07-25 2017-09-30 Виктор МАНАСТЫРЛЫ Cazan de încălzire

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3737661A1 (de) * 1987-11-06 1989-05-24 Karl Ackermann Heizungskessel mit zwangsweiser zufuhr der verbrennungsluft
AT400180B (de) * 1990-01-10 1995-10-25 Froeling Heizkessel Und Behael Festbrennstoffbeheizter unterbrand-kessel
DE19612045A1 (de) * 1996-03-27 1997-10-02 Hoval Interliz Ag Heizkessel und Verfahren zu seinem Betreiben
DE19646525C1 (de) * 1996-10-29 1998-06-10 Christian Dipl Ing Herlt Vergaserheizkessel für feste Brennstoffe, insbesondere für Holz

Also Published As

Publication number Publication date
DE102006009335A1 (de) 2007-09-06
EP1830126A1 (de) 2007-09-05
ATE410643T1 (de) 2008-10-15
DK1830126T3 (da) 2009-01-19
PL1830126T3 (pl) 2009-01-30
DE502007000148D1 (de) 2008-11-20
RU2007133013A (ru) 2009-03-10

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