EP0866266A2 - Brennvorrichtung mit zwei Zuluftarten - Google Patents
Brennvorrichtung mit zwei Zuluftarten Download PDFInfo
- Publication number
- EP0866266A2 EP0866266A2 EP98105049A EP98105049A EP0866266A2 EP 0866266 A2 EP0866266 A2 EP 0866266A2 EP 98105049 A EP98105049 A EP 98105049A EP 98105049 A EP98105049 A EP 98105049A EP 0866266 A2 EP0866266 A2 EP 0866266A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- burning device
- combustion chamber
- openings
- secondary 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- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M9/00—Baffles or deflectors for air or combustion products; Flame shields
- F23M9/02—Baffles or deflectors for air or combustion products; Flame shields in air inlets
-
- 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
Definitions
- the invention relates to a combustion device for solid fuels, preferably for wood.
- the focus today - in addition to making the best possible use of the fuel - is to achieve the lowest possible amount of pollutants flowing into the surrounding fuel gas, in particular the lowest possible values of CO 2 and No x .
- Complete combustion of a solid fuel in a single combustion stage can hardly be achieved.
- the main combustion chamber in which the Solid fuel, supply air can be regulated, the so-called primary air, and on the other hand, the fuel gases escaping from the main combustion chamber to feed the surroundings directly via a chimney, but beforehand in to subject a post-combustion chamber to a second combustion, for which purpose Afterburner again supplied with oxygen in the form of secondary air must become.
- the object of the present invention is to increase consumption Indoor air regardless of the primary and secondary air required for the To be able to determine the heating device, that is, without negatively affecting the combustion influence.
- the amount of indoor air used can be reduced regardless of the total amount used by the heater Supply air can be regulated.
- combustion device is supplied with supply air both as primary air and thus for Combustion in the main combustion chamber, as well as secondary air, i.e. for Combustion in the afterburner.
- the two types of supply air initially flow into a pre-air space.
- the two types of supply air mix there completely, partially or not at all, so that the supply air as primary air and as secondary air either as single "first or second type of supply air, or as a mixture of the two types of supply air.
- the pre-air space is that under the grate of the Main combustion chamber existing ash room used.
- a heater is located in the front of the ash room to remove the ashes. If at the same time the Supply air opening of the room air is arranged as the first type of supply air, the opening can to remove the ashes at the same time as an adjustable first supply air opening for the Indoor air can be used.
- the side areas and the rear area Compared to the rest of the ash room completely or completely as a circulation channel severed. This is preferably done by standing walls along the sides and the back wall, through which a U-shaped in plan, along all Sides except the front, circumferential channel is created.
- the foreign air is introduced, either from the Back here or, for example, a connector in a double Floor under the floor of the ash room, which goes through with the circulation channel Bottom openings communicates.
- the cross-section can be changed the supply air opening for this foreign air incoming flow can be regulated independently of the amount of indoor air, the control elements for regulating, i.e. sliders etc., preferably again located on the front surface of the burner.
- the entire ash room including its top cover, which is simultaneously represents the focal plane to the main combustion chamber, is preferably as Sheet metal construction made of highly heat-resistant steel sheet. The individual parts are welded together.
- the upper divider protrudes preferably over the sides and Back wall a bit out and is additionally on the free outer edge bent up to an upstanding edge. This edge makes it easier Picking up and attaching elements to the later walls of the Form the main combustion chamber.
- These are vertical Firebricks or hollow sheet steel constructions, which are also the Serve thermal insulation to the outside.
- one of the sides or the rear wall of the main combustion chamber is said to be Passage opening to the afterburner can be used, which is laterally or behind, but not above, the main combustion chamber.
- the divider For the supply of primary and secondary air are in the divider in the middle area one or more primary air vents, mostly large area are formed, and on which a separate firing grate, for example Fireclay material with corresponding openings for the passage of the Provide primary air, is applied.
- a separate firing grate for example Fireclay material with corresponding openings for the passage of the Provide primary air.
- the Circulation channels for the foreign air are usually more than elongated holes trained secondary air openings formed in the divider.
- the attached nozzle arrangement causes that of the Secondary air openings from the air into the usually vertical nozzle arrangement flows in and from there is supplied to the fuel gases, which from Flow the main combustion chamber into the afterburning chamber.
- the Nozzle arrangement from side by side along the respective side Hollow bodies, in their flanks outlet openings for the secondary air have, and are open at the bottom, so that the secondary air from the Intake secondary air openings of the divider into the nozzle arrangement can.
- the hollow bodies have a horizontal near their lower end, that is the nozzle base plate runs transversely to the longitudinal extent of the hollow body, which rests on the divider, and thereby an outflow of the secondary air prevented in addition to the hollow bodies into the main combustion chamber. At the top The hollow bodies are closed at the end.
- the nozzle arrangement can be a one-piece body, at So all the hollow bodies with a continuous nozzle base plate are sealed connected, preferably welded, or it can be any one Hollow bodies of the nozzle arrangement have a separate nozzle base plate, so that according to the length of the selected edge the corresponding number placed next to each other by hollow bodies with a base plate as a nozzle arrangement Need to become. In the latter arrangement, a fixation, for. B. Positive Recording, the upper ends of the hollow body by, for example, the upper Covering the main combustion chamber makes sense.
- connection between the nozzle arrangement and the Welded construction of the ash pan in which, for example, the bent edge of the partition plate has horizontal slots, in which the nozzle base plate of the nozzle arrangement is only horizontal must be inserted, whereby the nozzle assembly fixed in position and the hollow body is secured against tipping.
- the hollow bodies are preferably approximately one in cross section triangular shape, with one pointing towards the main combustion chamber Top of the triangular shape, and the outlet openings for the secondary air are over the length of the hollow body, i.e. the vertical, distributed in the side flanks in near the rear, thick end of the triangular cross section - in Direction of flow of the fuel gases considered - arranged, i.e. on the point at which the fuel gases pass between the Hollow bodies must flow through the nozzle-shaped constriction and therefore be accelerated.
- the combustion device according to the invention can thus be used independently of the Lateral position of the post-combustion chamber converted to the main combustion chamber very quickly or be installed without having to move the post-combustion chamber to the side (left, rear, right) separate welded constructions for the ash pan and / or the main combustion chamber must be prepared.
- this heater u. a. can also be used in a stove, in which the hotplate runs directly above the main combustion chamber, and that the roasting tube, which the combustion gases flow around as an afterburner should be located next to the main combustion chamber.
- Fig. 1 shows an ash room 2 with outer walls 28, a floor plate 11 with underside 11 arranged underneath and a dividing plate 15 'as the upper one Graduation. Standing walls 12 protrude from the floor of the ash room 2, however, do not reach the partition plate 15 '.
- Another possibility is not over the underbody 11, but directly into the circulation channel 14, e.g. B. from the back, over a non-spatial Air opening 9 to supply the tertiary air, the operating instructions for the Regulation, i.e. slide, etc., arranged on the front of the burner are.
- This supply air is intended to pass through the separating plane 154, that is to say the separating plate 15 ' or the supply air mixture of room air and outside air to the main combustion chamber 4 as primary air and the fuel gases 22 flowing into the afterburner 5 are supplied as secondary air.
- the Partition 15 usually one or more firing grates, either made of steel, made of cast iron or made of fireclay material, which is relatively few Have openings for the primary air and large areas Most of the primary air openings 18 in FIG. 1 are closed.
- the standing walls 12 can also be raised upwards by additional walls 12 '. be extendable, or the standing walls 12 can be close to the bottom of the Partition plate 15 'be attached.
- the primary air openings 18 are exclusively from the room air via the Room air opening 8 fed.
- Fig. 1 is on the right side of these two secondary air openings 23
- hollow bodies 24 which are open at the bottom and shot at the top, and into which the secondary air can flow in through the secondary air opening 23.
- This primary air is supplied to the fuel gases 22 via nozzle openings 7 between the individual hollow bodies 24 from the main combustion chamber in the Overflow afterburner 5.
- the nozzle openings are preferably as Slits formed that are perpendicular to the vertical, i.e. the course of the Nozzle body 24, at an angle of 10-35 °.
- the lower one End of one slot at least up to the top of the next Reach slot down so that in height, that is in the longitudinal extent of the Nozzle elements 24, no gap with regard to the escape of secondary air arises.
- the hollow bodies 24 are transverse extending nozzle base plate 21 connected as close as possible to the Partition plate 15 'sits, and prevents secondary air from these right Secondary air openings 23 except in the hollow body 24 of the nozzle arrangement 6 also flows into the main combustion chamber 4.
- the rear and left-hand secondary openings 23 are closed, that on them the left side elements 16 and on the back Back elements 17 are placed, the rear wall and left side wall of the Form main combustion chamber 4 and are so thick that they are the ones below Close secondary air openings 23.
- the partition plate 15 ' is on the sides and on the back up to one Edge 19 bent up, and in the lower region of this edge, preferably just above the horizontal surface of the partition plate 15 ', are horizontal running slots 20 recessed in the edge 19 through which the Nozzle base plate 21 of the nozzle arrangement 6 can be pushed through and thereby fixes the position of the nozzle arrangement 6.
- the nozzle arrangement can also consist of individual hollow bodies 24, each tightly connected to a single nozzle base plate 21, are preferably welded, and placed side by side, as in the supervision 4, which result in the entire nozzle arrangement. This allows the Dimensioning of the nozzle arrangement easily the spatial conditions of the Afterburner can be adjusted.
- the hollow body 24 can also the nozzle base plate 21 down penetrate and thereby through the partition plate 15 'into the ash room 2nd penetrate what better mounting of the nozzle assembly in the Secondary air openings 23 results.
- FIG 3 is - again in a front view with the front wall removed - the burning device according to the invention shown in the context of a stove.
- the burner 1 is in the left part of the cooker 25, and ends just below the hotplate 29, which is usually the upper end of the main combustion chamber 4.
- the entire path of the fuel gases to the right of the nozzle arrangement 6 serves as Afterburner 5, a large part of the fuel gases through the upper area will flow through the nozzle assembly 6.
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)
- Incineration Of Waste (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
Description
- 1
- - Brennvorrichtung
- 2
- - Ascheraum
- 3
- - Brennrost
- 4
- - Hauptbrennraum
- 5
- - Nachbrennraum
- 6
- - Düsenanordnung
- 7
- - Düsenöffnung
- 8
- - Raumluftöffnung
- 9
- - Fremdluftöffnung
- 10
- - Stutzen
- 11
- - Unterboden
- 12
- - Stehwand
- 12'
- - Zusatzwand
- 13
- - Bodenöffnung
- 14
- - Umlaufkanal
- 15
- - Trennebene
- 15'
- - Trennblech
- 16
- - Seitenelement
- 17
- - Rückelement
- 18
- - Primärluftöffnung
- 19
- - Rand
- 20
- - Schlitze
- 21
- - Düsensockelplatte
- 22
- - Brenngase
- 23
- - Sekundärluftöffnung
- 24
- - Hohlkörper
- 25
- - Herd
- 26
- - Bratrohr
- 27
- - Brenngasauslaß
- 28
- - Außenwand
- 29
- - Herdplatte
- 30
- - Trennplatte
Claims (14)
- Brennvorrichtung mit zwei Zuluftarten, insbesondere Raumluft und raumfremde Luft,
dadurch gekennzeichnet, daß
für beide Zuluftarten getrennt regelbare und auch vollständig verschließbare Zufuhröffnungen, (8, 9) vorhanden sind. - Brennvorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß
die Zuluftarten über einen gemeinsamen Vorluftraum dem Hauptbrennraum (4) als Primärluft und dem Nachbrennraum (5) als Sekundärluft zugeführt wird. - Brennvorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß
der Vorluftraum, insbesondere der Ascheraum (2), über eine frontseitige Raumluftöffnung (8) verfügt sowie außerhalb der Raumluftöffnung (8) entlang der Seitenwände und der Rückwand über einen umlaufenden Umlaufkanal (14), in welchen raumfremde Luft einbringbar ist. - Brennvorrichtung nach Anspruch 3,
dadurch gekennzeichnet, daß
der Umlaufkanal (14) von dem übrigen, mittleren Bereich des Ascheraumes (2) durch vom Boden aufragende Stehwände (12) abgetrennt ist. - Brennvorrichtung nach Anspruch 3,
dadurch gekennzeichnet, daß
in den Umlaufkanal (14) die raumfremde Luft in die stirnseitigen Enden des Umlaufkanals (14) über wenigstens eine dort angeordnete Fremdluftöffnung (9) einbringbar ist. - Brennvorrichtung nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, daß
in den Umlaufkanal (14) die raumfremde Luft über einen unterhalb des Bodens des Ascheraumes (2) angeordneten Unterbodens (11) eingeleitet wird, der über Bodenöffnungen (13) mit dem Umlaufkanal (14) in Verbindung steht einbringbar ist, insbesondere über eine in der Unterseite des Unterbodens (11) angeordneten Stutzen (10), der mittels einer beweglichen Klappe (10a) ganz oder teilweise als Fremdluftöffnung (9') regelbar ist. - Brennvorrichtung nach einem der Ansprüche 3 bis 6,
dadurch gekennzeichnet, daß
in der Trennebene (15) zwischen dem Vorluftraum, insbesondere dem Ascheraum (2), und dem Hauptbrennraum (4), welche insbesondere als Trennblech (15') ausgebildet ist, im seitlichen und hinteren Randbereich, vorzugsweise oberhalb des Umlaufkanals (14), wenigstens eine Sekundärluftöffnung (23) angeordnet ist, und im Mittenbereich wenigstens eine Primärluftöffnung (18). - Brennvorrichtung nach Anspruch 7,
dadurch gekennzeichnet, daß
auf die Sekundärluftöffnungen (23) einer Seite und/oder der Rückseite eine Düsenanordnung (6) so aufsetzbar ist, daß die aus dem Vorluftraum, z. B. dem Ascheraum (2), über die Sekundärluftöffnungen (23) ausströmende Sekundärluft in die Düsenanordnung (6) strömt und über die Düsen (7) den Brenngasen (22) beim Übertritt vom Hauptbrennraum (4) in den Nachbrennraum (5) zugeführt wird. - Brennvorrichtung nach Anspruch 8,
dadurch gekennzeichnet, daß
die Düsenanordnung (6) aus im wesentlich senkrecht stehenden Hohlkörpern (24) mit insbesondere dreieckigem, mit der Spitze gegen den Hauptbrennraum (4) gerichtetem, Querschnitt besteht, der ein unteres offenes Ende hat, das auf einer Düsensockelplatte (21) dicht angeordnet ist. - Brennvorrichtung nach Anspruch 9,
dadurch gekennzeichnet, daß
das Trennblech (15') einen außen hochgebogenen Rand (19) aufweist, und im Rand (19) bzw. im Übergangsbereich zwischen dem Trennblech (15') und dem Rand (19) Schlitze (20) angeordnet sind, in die die Düsensockelplatte (21) der Düsenanordnung (6) zum Fixieren der Lage der Düsenanordnung (6) einsteckbar ist. - Brennvorrichtung nach Anspruch 7,
dadurch gekennzeichnet, daß
die nicht von einer Düsenanordnung (6) bedeckten Sekundärluftöffnungen (23) mittels darauf aufgesetzter, vorzugsweise vertikal aufragender Seitenelemente (16) bzw. Rückelemente (17), welche beispielsweise aus Schamotte bestehen und eine ausreichende Dicke zum Abdecken der Sekundärluftöffnungen (23) haben, abgedeckt und verschlossen sind. - Brennvorrichtung nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, daß
die Brennvorrichtung Teil eines Küchenherdes ist, bei dem sich das Bratrohr (26) seitlich der Brennvorrichtung, etwa auf der Höhe des Hauptbrennraumes (4), befindet, und die Brenngase (22) entlang der Oberseite der Bratrohre (22), der von der Brennvorrichtung (1) abgewandten Seite der Bratvorrichtung nach unten als Nachbrennraum (5) einem Brenngasauslaß (27) zugeführt werden. - Brennvorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß
die Hohlkörper (24) mit jeweils einer Düsensockelplatte (21), die Quer zur Längserstreckung des Hohlkörpers (24) verläuft, verbunden sind. - Brennvorrichtung nach Anspruch 13,
dadurch gekennzeichnet, daß
die Hohlkörper (24) sich mit ihren unteren Enden durch das Trennblech (15') hindurch in den Vorluftraum, insbesondere den Umlaufkanal (14) des Ascheraumes (2), hineinerstrecken.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19711722 | 1997-03-20 | ||
DE19711722A DE19711722C2 (de) | 1997-03-20 | 1997-03-20 | Brennvorrichtung mit zwei Zuluftarten |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0866266A2 true EP0866266A2 (de) | 1998-09-23 |
EP0866266A3 EP0866266A3 (de) | 1999-08-18 |
Family
ID=7824068
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98105049A Withdrawn EP0866266A3 (de) | 1997-03-20 | 1998-03-19 | Brennvorrichtung mit zwei Zuluftarten |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0866266A3 (de) |
DE (1) | DE19711722C2 (de) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1984001014A1 (en) | 1979-09-03 | 1984-03-15 | Oddmund Saxlund | Method and installation for operating a stoker-heater |
DE4039387A1 (de) | 1990-12-10 | 1992-06-11 | Heribert Posch | Brennvorrichtung fuer holz und kohle |
DE9413804U1 (de) | 1993-09-02 | 1994-11-10 | List, Günther, Ing., Grossgmain | Vorrichtung zur Nachverbrennung für einen Gebläsekessel oder Herd |
DE4316182A1 (de) | 1993-05-14 | 1994-11-17 | Haiko Kuenzel | Verfahren zum Steuern und/oder Regeln einer mit einem Feststoffkessel ausgerüsteten Heizungsanlage sowie Vorrichtung zur Durchführung des Verfahrens |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IE40956B1 (en) * | 1975-01-27 | 1979-09-26 | Morris W | Improvements in space heaters |
US4141336A (en) * | 1977-01-27 | 1979-02-27 | Fitch John C | Fireplace stove |
DE3020182A1 (de) * | 1980-05-28 | 1981-12-03 | Walter Dr.-Ing. 5100 Aachen Jürgens | Luftzufuhrsystem |
US4319556A (en) * | 1981-03-09 | 1982-03-16 | Jamestown Group | Catalytic stove |
EP0409790A1 (de) * | 1989-07-19 | 1991-01-23 | Willi Hager | Feuerungsanlage |
DE9315860U1 (de) * | 1993-10-18 | 1994-02-03 | Riser, Georg, Stumm | Feuerstätte für feste Brennstoffe |
-
1997
- 1997-03-20 DE DE19711722A patent/DE19711722C2/de not_active Expired - Fee Related
-
1998
- 1998-03-19 EP EP98105049A patent/EP0866266A3/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1984001014A1 (en) | 1979-09-03 | 1984-03-15 | Oddmund Saxlund | Method and installation for operating a stoker-heater |
DE4039387A1 (de) | 1990-12-10 | 1992-06-11 | Heribert Posch | Brennvorrichtung fuer holz und kohle |
DE4316182A1 (de) | 1993-05-14 | 1994-11-17 | Haiko Kuenzel | Verfahren zum Steuern und/oder Regeln einer mit einem Feststoffkessel ausgerüsteten Heizungsanlage sowie Vorrichtung zur Durchführung des Verfahrens |
DE9413804U1 (de) | 1993-09-02 | 1994-11-10 | List, Günther, Ing., Grossgmain | Vorrichtung zur Nachverbrennung für einen Gebläsekessel oder Herd |
Also Published As
Publication number | Publication date |
---|---|
DE19711722C2 (de) | 2002-09-26 |
DE19711722A1 (de) | 1998-10-01 |
EP0866266A3 (de) | 1999-08-18 |
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