DE4032243A1 - Sectional boiler for atmospheric gas burner - has cooling water arms with vertical ribs projecting up into flame areas - Google Patents
Sectional boiler for atmospheric gas burner - has cooling water arms with vertical ribs projecting up into flame areasInfo
- Publication number
- DE4032243A1 DE4032243A1 DE19904032243 DE4032243A DE4032243A1 DE 4032243 A1 DE4032243 A1 DE 4032243A1 DE 19904032243 DE19904032243 DE 19904032243 DE 4032243 A DE4032243 A DE 4032243A DE 4032243 A1 DE4032243 A1 DE 4032243A1
- Authority
- DE
- Germany
- Prior art keywords
- water
- arms
- sectional boiler
- vertical
- boiler according
- 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- Withdrawn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
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
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
-
- 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
- F23M9/10—Baffles or deflectors formed as tubes, e.g. in water-tube boilers
-
- 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
- F24H1/30—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 being built up from sections
- F24H1/32—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 being built up from sections with vertical sections arranged side by side
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)
Abstract
Description
Die Erfindung betrifft einen Gliederheizkessel nach dem Oberbegriff des Patent anspruches 1.The invention relates to a sectional boiler according to the preamble of the patent claim 1.
Ein Gliederheizkessel dieser Art, bei dem die vertikalen Kesselglieder mit ihren wasserführenden Teilen einer Flammenkühlung zur Verminderung der NOx-Bildung dienen, ist der DE 37 05 230 C2 zu entnehmen. Bei den wasserführenden Teilen handelt es sich dabei um Zungen an den Kesselgliedern, die in den Feuerraum hineinragen und äußere Kühlrippen besitzen. Durchbrüche in den Zungen dienen einem Druck- und Temperaturausgleich zwischen benachbarten Feuerräumen.A sectional boiler of this type, in which the vertical boiler sections with their water-carrying parts serve to cool the flame to reduce the formation of NO x , can be found in DE 37 05 230 C2. The water-carrying parts are tongues on the boiler sections that protrude into the combustion chamber and have external cooling fins. Breakthroughs in the tongues serve to equalize pressure and temperature between adjacent fireboxes.
Der DE 36 42 102 C2 ist es auch schon zu entnehmen, daß die vertikalen Kesselglieder mit ihren wasserführenden Teilen bis in den Bereich unter die Brenner stäbe reichen. Die Flammenkühlung erfolgt auch in diesem Fall über Kühlrippen.DE 36 42 102 C2 it can already be seen that the vertical Boiler sections with their water-carrying parts down to the area under the burners bars are enough. In this case, too, the flame is cooled using cooling fins.
Es wurde festgestellt, daß mit solchen zungen- oder taschenartigen Kühlelemen ten keine optimalen Ergebnisse zu erzielen sind. Das Ausbrennen der Flammen erfolgt nämlich in getrennten, vertikalen Schächten. Eine Vermischung und ein echtes Nachverbrennen des entstehenden CO erfolgt nicht.It has been found that with such tongue-like or pocket-like cooling elements optimal results cannot be achieved. Burning out the flames namely takes place in separate, vertical shafts. A mix and match there is no real afterburning of the resulting CO.
Es soll eine Möglichkeit geschaffen werden, durch die Kühlwirkung der wasser führenden Teile der Kesselglieder die NOx-Bildung zu verringern und ohne den CO-Ausbrand zu behindern.The aim is to create a possibility of reducing the formation of NO x by the cooling effect of the water-carrying parts of the boiler sections and without hindering the CO burnout.
Der erfindungsgemäße Gliederheizkessel besitzt das im Kennzeichen des Patent anspruches 1 genannte Merkmal. The sectional boiler according to the invention has this in the characterizing part of the patent Claim 1 called feature.
Die wasserführenden Teile der Mittelglieder besitzen nicht die Form von Wasser taschen, die gegebenenfalls durchbrochen sind. Es handelt sich vielmehr um Wasser arme als Teile der Kesselglieder. Oberhalb der Wasserarme ist ein ausreichend bemessener Nachverbrennungsraum gebildet. Die direkte oder indirekte Kühlwirkung der Wasserarme sorgt für eine bedeutende Verringerung der Verbrennungstempera turen und damit für eine Verminderung der NOx-Bildung. Im Nachverbrennungs- Feuerraum erfolgt der Abschluß der Verbrennung mit einer Nachverbrennung des zunächst entstehenden CO.The water-carrying parts of the middle links do not have the shape of water pockets, which may be broken. Rather, it is poor in water than parts of the boiler sections. A sufficiently dimensioned post-combustion chamber is formed above the water arms. The direct or indirect cooling effect of the water arms ensures a significant reduction in combustion temperatures and thus a reduction in NO x formation. In the afterburning combustion chamber, the combustion is completed with the afterburning of the CO that is initially created.
Dem DE-CM 71 33 340 ist ein Gliederheizkessel zu entnehmen, bei dem Wasser arme versetzt unterhalb der Brennerstäbe in deren Achsrichtung verlaufen. Diese Wasserarme dienen einer Bodenkühlung, jedoch noch nicht einer Flammen kühlung. Kühlrippen auf diesen unteren Wasserarmen werden gemäß einem beson deren Kennzeichen der Erfindung bis in den Flammenbereich hochgezogen. Somit erfolgt eine indirekte Kühlung von den unteren Wasserarmen aus. Horizontale und vertikale Querrippen können den Kühleffekt noch zusätzlich steigern.DE-CM 71 33 340 shows a sectional boiler in which water arms offset below the burner rods in their axial direction. These water arms are used for cooling the floor, but not yet for a flame cooling. Cooling fins on these lower arms are according to a special the characteristics of the invention pulled up into the flame area. Consequently there is indirect cooling from the lower water arms. horizontal and vertical cross ribs can further increase the cooling effect.
In den Kühlrippen sollten über die Länge verteilte Schlitze ausgespart sein, die als Dehnungsspalte dienen. Öffnungen auf der Höhe der Brennerstäbe dienen einem Überzünden von einem Stab zu anderen.Slots should be left in the cooling fins serve as expansion gaps. Openings at the height of the burner rods are used an ignition from one staff to another.
Weitere Wasserarme am Scheitel der Kühlrippen können die Flammenkühlung zusätzlich verbessern. Es entsteht ein Kombinationseffekt zwischen den unteren und den oberen Wasserarmen und den zwischengefügten Kühlrippen.Flame cooling can be added to other arms at the top of the cooling fins additionally improve. There is a combination effect between the lower ones and the upper arms and the interposed cooling fins.
Wasserarme nur im Bereich oberhalb der Brennerrohre können bereits den ange strebten Erfolg bringen. In diesem Fall können die Wasserarme durch Flammen schirme gegen eine Direktbeaufschlagung durch die Flammen abgeschirmt sein. Entscheidend ist die Tatsache, daß oberhalb der Wasserarme ein ausreichender Nachverbrennungs-Feuerraum für den vollständigen Ausbrand vorhanden ist.Low water levels only in the area above the burner tubes can already achieve the strive to bring success. In this case, the water arms can burn shields against direct exposure to the flames. The decisive factor is the fact that there is sufficient water above the water arms Afterburning firebox is available for complete burnout.
Die beigefügte Zeichnung stellt Ausführungsbeispiele der Erfindung dar. Es zeigt:The accompanying drawing shows exemplary embodiments of the invention. It shows:
Fig. 1 Einen vertikalen Schnitt durch den Heizkessel, Fig. 1 is a vertical section through the boiler,
Fig. 2 Schnitt A-A aus Fig. 1, Fig. 2 section AA of Fig. 1,
Fig. 3 Ein vergrößertes Detail aus Fig. 1 und Fig. 3 An enlarged detail from Fig. 1 and
Fig. 4 und 5 Alternativen zu Fig. 3. FIGS. 4 and 5 alternatives to FIG. 3.
Der Kessel besteht aus einzelnen Kesselgliedern 1, die einen Brennraum 2 und vertikale Heizgaszüge 3 einschließen. Der wasserseitige Anschluß erfolgt an Naben 4. Untere Wasserarme 5 dienen einer Bodenkühlung. Durch untere Öffnungen 6 gelangt die Verbrennungsluft zu den Brennstäben 7, welche an ein gemeinsames Gasrohr 8 angeschlossen sind. Dichtleisten 9 begrenzen die Heizgas züge 3. Stirnseitig ist der Brennraum 2 an den Endgliedern mit Abdeckungen 10 verschlossen, wobei diese Funktion auch durch die Wasserräume der Endglieder erfüllt werden kann. Noppen 11 auf den Wärmetauscherflächen erhöhen den Wärme übergang. Dem Abgassammler 12 folgt eine Strömungssicherung 13 und das Abgas rohr 14. Der Kessel ruht auf Füßen 15.The boiler consists of individual boiler sections 1 , which include a combustion chamber 2 and vertical heating gas flues 3 . The water-side connection is made at hubs 4 . Lower water arms 5 serve to cool the floor. The combustion air passes through lower openings 6 to the fuel rods 7 , which are connected to a common gas pipe 8 . Sealing strips 9 limit the heating gas trains 3 . At the end, the combustion chamber 2 is closed at the end members with covers 10 , this function also being able to be performed by the water spaces of the end members. Nubs 11 on the heat exchanger surfaces increase the heat transfer. The exhaust manifold 12 is followed by a flow safety device 13 and the exhaust pipe 14 . The kettle rests on feet 15 .
Gemäß Fig. 3 und 4 sitzen Kühlrippen 16 auf den unteren Wasserarmen 5. Diese ragen bis in den Flammenbereich hinein. Wie in Fig. 3 angedeutet, können die Kühlrippen auch als eine besondere Gestaltung der Wasserarme gebildet sein. Querrippen 17 verstärken die Kühlwirkung ohne Beeinträchtigung der Verbrennung und verringern dadurch die NOx-Bildung. Schlitze 18 oder Öffnungen in den Kühlrippen 16 erlauben einen Dehnungsausgleich und ein Überzünden. Nach Fig. 4 sind an den Scheiteln der Kühlrippen 16 weitere Wasserarme 5′ angeord net. Sie dienen einer zusätzlichen Kühlung, wobei oberhalb jedenfalls ein Nach verbrennungs-Feuerraum 2 vorhanden ist. According to Fig. 3 and 4 seated cooling fins 16 on the lower arms 5 water. These protrude into the flame area. As indicated in Fig. 3, the cooling fins can also be formed as a special design of the water arms. Cross ribs 17 increase the cooling effect without impairing the combustion and thereby reduce the NO x formation. Slots 18 or openings in the cooling fins 16 allow expansion compensation and over-ignition. According to Fig. 4 of the cooling fins 16 are more water arms 5 'angeord net at the vertices. They are used for additional cooling, with an after-combustion combustion chamber 2 being present above.
Gemäß Fig. 5 liegen nur auf der oberen Ebene Wasserarme 5′, die durch Flammen schirme 19, gekühlt durch Abstrahlung an die Wasserarme 5, und durch die Sekun därluft, gegen eine Direktbeaufschlagung durch die Flammen abgeschirmt sind oder sein können. Vertikale Rippen 20 führen zur Kühlung des Kesselfundamentes zu unteren, horizontalen Rippen 21, die auch als Bodenrahmen ausgebildet sein können.Referring to FIG. 5 are located only on the upper level of water arms 5 ', the screens by flame 19, cooled by radiation to the water arms 5, and därluft by the seconding, are shielded from direct admission by the flame or can be. Vertical ribs 20 lead to cooling of the boiler foundation to lower, horizontal ribs 21 , which can also be designed as a floor frame.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19904032243 DE4032243A1 (en) | 1990-10-11 | 1990-10-11 | Sectional boiler for atmospheric gas burner - has cooling water arms with vertical ribs projecting up into flame areas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19904032243 DE4032243A1 (en) | 1990-10-11 | 1990-10-11 | Sectional boiler for atmospheric gas burner - has cooling water arms with vertical ribs projecting up into flame areas |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4032243A1 true DE4032243A1 (en) | 1992-04-16 |
Family
ID=6416062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19904032243 Withdrawn DE4032243A1 (en) | 1990-10-11 | 1990-10-11 | Sectional boiler for atmospheric gas burner - has cooling water arms with vertical ribs projecting up into flame areas |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4032243A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9312911U1 (en) * | 1993-08-28 | 1993-10-14 | Viessmann Werke Gmbh & Co, 35108 Allendorf | Atmospheric gas boiler |
DE4402323C1 (en) * | 1994-01-27 | 1995-07-27 | Viessmann Werke Kg | Cast iron heating boiler |
DE4415364A1 (en) * | 1994-05-02 | 1995-11-09 | Viessmann Werke Kg | Gas=fired heating boiler |
AT402668B (en) * | 1995-03-13 | 1997-07-25 | Vaillant Gmbh | Cast-iron sectional boiler |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8526207U1 (en) * | 1985-09-13 | 1985-10-31 | Viessmann Werke Kg, 3559 Allendorf | Gas boiler |
DE8612181U1 (en) * | 1986-05-03 | 1986-07-10 | Joh. Vaillant GmbH u. Co., 42859 Remscheid | Articulated boiler |
DE3916142A1 (en) * | 1988-05-24 | 1989-11-30 | Vaillant Joh Gmbh & Co | Method for burning a fuel/primary-air mixture, as well as gas burner and sectional boiler for carrying out this method |
DE4015148A1 (en) * | 1989-05-20 | 1990-11-22 | Vaillant Joh Gmbh & Co | Water heater with burner and two=part heat exchanger - has one part of heat exchanger in flame to extract hot flow and intensify flame |
-
1990
- 1990-10-11 DE DE19904032243 patent/DE4032243A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8526207U1 (en) * | 1985-09-13 | 1985-10-31 | Viessmann Werke Kg, 3559 Allendorf | Gas boiler |
DE8612181U1 (en) * | 1986-05-03 | 1986-07-10 | Joh. Vaillant GmbH u. Co., 42859 Remscheid | Articulated boiler |
DE3916142A1 (en) * | 1988-05-24 | 1989-11-30 | Vaillant Joh Gmbh & Co | Method for burning a fuel/primary-air mixture, as well as gas burner and sectional boiler for carrying out this method |
DE4015148A1 (en) * | 1989-05-20 | 1990-11-22 | Vaillant Joh Gmbh & Co | Water heater with burner and two=part heat exchanger - has one part of heat exchanger in flame to extract hot flow and intensify flame |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9312911U1 (en) * | 1993-08-28 | 1993-10-14 | Viessmann Werke Gmbh & Co, 35108 Allendorf | Atmospheric gas boiler |
DE4402323C1 (en) * | 1994-01-27 | 1995-07-27 | Viessmann Werke Kg | Cast iron heating boiler |
DE4415364A1 (en) * | 1994-05-02 | 1995-11-09 | Viessmann Werke Kg | Gas=fired heating boiler |
AT402668B (en) * | 1995-03-13 | 1997-07-25 | Vaillant Gmbh | Cast-iron sectional boiler |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |