EP0990845B1 - Atmosphärischer, wassergekühlter Gasbrenner - Google Patents
Atmosphärischer, wassergekühlter Gasbrenner Download PDFInfo
- Publication number
- EP0990845B1 EP0990845B1 EP99115368A EP99115368A EP0990845B1 EP 0990845 B1 EP0990845 B1 EP 0990845B1 EP 99115368 A EP99115368 A EP 99115368A EP 99115368 A EP99115368 A EP 99115368A EP 0990845 B1 EP0990845 B1 EP 0990845B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas burner
- sheet
- combustion
- burner according
- zone
- 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.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title 1
- 239000002184 metal Substances 0.000 claims description 43
- 238000001816 cooling Methods 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 12
- 238000002485 combustion reaction Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims 2
- 239000010959 steel Substances 0.000 claims 2
- 238000010304 firing Methods 0.000 description 16
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000005755 formation reaction Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
- F23D14/78—Cooling burner parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
- F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
- F23D14/045—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with a plurality of burner bars assembled together, e.g. in a grid-like arrangement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
- F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
- F23D14/583—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration of elongated shape, e.g. slits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/10—Flame diffusing means
- F23D2203/101—Flame diffusing means characterised by surface shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2212/00—Burner material specifications
- F23D2212/20—Burner material specifications metallic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2213/00—Burner manufacture specifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2214/00—Cooling
Definitions
- the invention is based on an atmospheric, water-cooled gas burner according to the genus of Main claim.
- This type of gas burner is characterized by a simple final assembly, in which in one Work the pre-assembled burner deck onto one that common mixing chamber containing, tub or box-shaped component placed and connected to this can be.
- the burner deck is designed as a one-piece casting, which is a complex tool for its manufacture needed.
- the outflow openings in relation to cross-sectional size and Design set relatively narrow limits.
- the inventive design of the gas burner with the Features of the main claim has the advantage that the parts of the burner deck is made using simpler tools can be and that there is greater freedom of movement with regard to the formation of the outflow openings.
- the sheet metal is made of a material with good Corrosion behavior, preferably from a well deformable austenitic stainless steel, and if the Outflow openings in addition to one of the two Sheet metal boards, preferably on the combustion chamber side, welded focal zone strips are formed from a high temperature resistant, preferably ferritic Stainless steel with high thermal conductivity.
- Firing zone strips attached to the combustion chamber side of the sheet metal plate are arched in cross section. If this is the case Outflow openings are designed slit-shaped fan-like flames, the edge areas of which Cooling channels are directed, which also causes the ignition the flames relieved from one burning zone to another becomes.
- the additional relaxation chambers between the common mixing chamber and the outflow openings can also be formed in that the mixing chamber side Sheet metal in the firing zone areas from the sheet level downward shaped sections.
- the pressure loss in the flow of the fuel-air mixture between the mixing chamber and the Outflow openings, as well as the flame noise can be reduced if on the combustion chamber side Firing zone strips welded to the sheet metal with top angled wall areas are provided or connected, which flow channels for the fuel-air mixture limit that to parallel to the cooling channels Lead outflow openings.
- the intermediate part can be a trough-shaped bent sheet metal part or a ceramic body his.
- the upward angled wall areas of one Burning zone strips can also be directly between them Limit the flow channel.
- the wall areas of the flow channels delimiting the described parts can be placed against each other that the flow channels are larger towards the outflow opening will have cross-section. This may change forming eddies of flame at the edges of the outflow openings reduce the tendency to remove the flames and also support the ignition of a burning zone to the other.
- combustion zone areas of the burner deck containing the outflow openings are coated with a catalytically active layer. This can reduce CO emissions and better optimize CO 2 settings. At the same time, there is less NO x .
- the burner deck can be manufactured inexpensively, though at least one sheet metal plate is formed by deep drawing. This allows the outflow or Form recesses precisely according to shape and position and Arrange.
- the two sheet metal boards can preferably by Laser welding can be connected to each other.
- a fitting design and the smallest possible Pressure loss in the coolant flow results when the Cooling channels in the burner deck connected in parallel Entry chamber with an exit chamber in the burner deck connect.
- the assembly of a gas burner according to Figures 1 to 3 has a burner deck 10, which consists of two deep-drawn, through Laser welding of interconnected sheet metal plates 12, 14 ( Figure 3).
- the burner deck 10 has several elongated burning zones 16 in which parallel to each other arranged, slot-shaped outflow openings 18 for the Fuel gas-air mixture are provided. Between Burning zones 16 are arranged through cooling channels 20 local formations of the metal plates 12, 14 between these are formed. In the same way is on the burner deck 10 one with an inlet connection 22 for the coolant provided input chamber 24 and one with a drain pipe 26 provided outlet chamber 28, both of which parallel flow through cooling channels 20 are connected.
- the burner deck 10 is on a casting process manufactured tub 30 attached, the one over the The entirety of all the combustion zones 16 extending mixing chamber 32 contains gas and air for the combustion components.
- In the Mixing chamber 32 open out at those indicated in FIG. 1 Axis lines 34 several injector channels 36 lying side by side on. To protect the injector openings 38 from a The flames overlap with the upper sheet metal plate 12 provided with a raised edge 40.
- In the drawing not shown means for igniting the outflowing Air-fuel mixture and for monitoring the flames attached diagonally to the corners of the burner deck 10.
- the sheet metal plates 12, 14 consist of an easily deformable Material with good corrosion behavior, preferably made of an austenitic stainless steel.
- the forms for education of the cooling channels 20 are in deep-drawing or internal high-pressure forming processes manufactured and the below below described, window-like recesses for unimpeded Passage of the fuel-air mixture are from the Stamped out sheet metal.
- the outflow openings 18 are at the first Embodiment according to Figure 3 in planes Separation zone strips 42 are provided, consisting of a high temperature resistant material with high Thermal conductivity, preferably from a ferritic Stainless steel.
- the focal zone strips 42 extend over the entire length of the firing zones 16 and two long sides on edge regions 44 of the sheet metal plate 12 on between the recesses 46 in the sheet metal plate 12 and whose formations defining the cooling channels 20 are formed are.
- the focal zone strips 42 are with the edge regions 44 the sheet metal plate 12 connected by welding.
- the lower one Sheet metal board 14 is in the firing zones 16 with cutouts 48 provided, which is under the recesses 46 in the Extend sheet metal plate 12 and together with this Fuel-air mixture unhindered from the mixing chamber 32 let the outflow openings 18 reach.
- the embodiment of Figure 4 differs from previously described in that the outflow openings 18th provided in arched firing zone strips 50 and under these additional relaxation chambers 52 are formed. As a result, the fuel-air mixture is applied to the individual Firing zones 16 better distributed and also the Flames fanned out slightly, causing the ignition of one firing zone 16 to the other is facilitated.
- the exemplary embodiments according to FIGS. 7 to 9 differ from those described above in that the Outflow openings for the fuel-air mixture no longer transverse to the longitudinal axes of the firing zones, but parallel are arranged.
- focal zone strips 58 welded to the upper metal plate 12, each with several, arranged one behind the other and by transverse webs 60 separate recesses are provided.
- the Recesses are angled on both sides from upwards Wall areas 62 of the firing zone strips 58 limited.
- Transverse webs 60 On the Transverse webs 60 is a sheet-metal part 64 bent in the form of a groove attached, which together with the wall areas 62 lengthways ongoing, diverging enlarging to the Outflow openings leading flow channels 66 and limited. Due to the inclined flames next to the The advantages mentioned at the outset also the readiness to ignite improved on the burner deck.
- FIG. 8 differs from that according to Figure 7 in that 64 instead of a sheet metal part Ceramic body 68 delimits the flow channels 66 inside.
- the burner deck according to FIG. 9 has a larger number of closer adjacent cooling channels 20 and combustion zones 16, in those between cheeks 70, the focal zone strips 72 are attached, one elongated flow channel 74 is formed, the outflow opening closer than in the previously described designs on the cooling channels 20 lies.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Description
Claims (16)
- Atmosphärischer, wassergekühlter Gasbrenner, mit einer Mischkammer (32), die sich über die gesamte Brennfläche erstreckt, und mit einem auf die Mischkammer (32) aufgesetzten Brennerdeck (10), das mit in Reihen angeordneten Ausströmöffnungen (18,66) für das Brennstoff-Luftgemisch und mit zwischen den Reihen verlaufenden Kühlkanälen (20) versehen ist, dadurch gekennzeichnet, daß das Brennerdeck (10) aus zwei Blechplatinen (12, 14) gebildet ist, von denen die eine mit den Ausströmöffnungen (18, 66) und die andere mit die Strömung nicht behindernden Aussparungen (48) versehen ist, und daß ferner die Kühlkanäle (20) durch örtliche Ausformungen mindestens eines der beiden Blechplatinen (12, 14) gebildet sind.
- Gasbrenner nach Anspruch 1, dadurch gekennzeichnet, daß die Blechplatinen (12, 14) aus einem Werkstoff mit gutem Korrosionsverhalten, vorzugsweise aus einem gut verformbaren aus tenitischen Edelstahl bestehen, und daß die Ausströmöffnungen (18, 66) in zusätzlich auf eine der beiden Blechplatinen (12, 14) aufgeschweißten Brennzonenleisten (42, 50, 58, 72) gebildet sind, die aus einem hochtemperaturbeständigen, vorzugsweise ferritischen Edelstahl mit hoher Wärmeleitfähigkeit bestehen.
- Gasbrenner nach Anspruch 2, dadurch gekennzeichnet, daß die Brennzonenleisten (42, 50, 58, 72) auf den zwischen Aussparungen (46) und den die Kühlkanäle (20) begrenzenden Ausformungen vorhandenen Randbereichen (44) der einen Blechplatine (12, 14) aufgeschweißt sind.
- Gasbrenner nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß in den Brennzonen (16) mindestens eine der Blechplatinen (12, 14) bzw. die Brennzonenleiste (50) zur Bildung von Entspannungskammern (52, 54) zwischen der Mischkammer (32) und den Ausströmöffnungen (18) verformt ist.
- Gasbrenner nach Anspruch 4, dadurch gekennzeichnet, daß die an der brennraumseitigen Blechplatine (12) befestigten Brennzonenleisten (50) im Querschnitt gewölbt ausgebildet sind.
- Gasbrenner nach Anspruch 4, dadurch gekennzeichnet, daß die mischkammerseitige Blechplatine (14) in den Brennzonenbereichen aus der Blechebene nach unten herausgeformte Abschnitte (55) hat.
- Gasbrenner nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Ausströmöffnungen (18) an der mischkammerseitigen Blechplatine (14) vorgesehen und die Aussparungen (46) in der anderen Blechplatine (12) durch hochgestellte, vorzugsweise gezackte Ränder (56) begrenzt sind.
- Gasbrenner nach Anspruch 2, dadurch gekennzeichnet, daß die auf die brennraumseitige Blechplatine (12) aufgeschweißten Brennzonenleisten (58, 72) mit nach oben abgewinkelten Wandbereichen (62, 70) versehen sind, welche Strömungskanäle (66, 74) für das Brennstoff-Luftgemisch begrenzen, die zu parallel zu den Kühlkanälen (20) verlaufende Ausströmöffnungen führen.
- Gasbrenner nach Anspruch 8, dadurch gekennzeichnet, daß an den Brennzonenleisten (58) je ein Zwischenteil (64, 68) befestigt ist, welches mit deren Wandbereichen (62) je einen Strömungskanal (66) begrenzt.
- Gasbrenner nach Anspruch 9, dadurch gekennzeichnet, daß das Zwischenteil ein rinnenförmig gebogenes Blechteil (64) ist.
- Gasbrenner nach Anspruch 9, dadurch gekennzeichnet, daß das Zwischenteil ein Keramikkörper (68) ist.
- Gasbrenner nach einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, daß durch entsprechende Formengebung der Brennzonenleisten (58) und der Zwischenteile (64, 68) die Strömungskanäle (66) geneigt zu den benachbarten Kühlkanälen (20) verlaufen.
- Gasbrenner nach einem der Ansprüche 8 bis 12, dadurch gekennzeichnet, daß die Strömungskanäle (66, 74) einen zur Ausströmöffnung hin größer werdenden Querschnitt haben.
- Gasbrenner nach Anspruch 1, dadurch gekennzeichnet, daß die die Ausströmöffnungen (18, 66, 74) enthaltenen Brennzonenbereiche des Brennerdecks (10) mit einer katalytisch wirksamen Schicht überzogen sind.
- Gasbrenner nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß mindestens eine Blechplatine (12, 14) durch Tiefziehen geformt ist.
- Gasbrenner nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Kühlkanäle (20) im Brennerdeck (10) vom Kühlmittel parallel durchströmt eine Eingangskammer (24) mit einer Ausgangskammer (28) im Brennerdeck (10) verbinden.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19845356A DE19845356A1 (de) | 1998-10-02 | 1998-10-02 | Atmosphärischer, wassergekühlter Gasbrenner |
DE19845356 | 1998-10-02 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0990845A2 EP0990845A2 (de) | 2000-04-05 |
EP0990845A3 EP0990845A3 (de) | 2000-08-02 |
EP0990845B1 true EP0990845B1 (de) | 2004-06-16 |
Family
ID=7883148
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99115368A Expired - Lifetime EP0990845B1 (de) | 1998-10-02 | 1999-08-04 | Atmosphärischer, wassergekühlter Gasbrenner |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0990845B1 (de) |
DE (2) | DE19845356A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20109170U1 (de) * | 2001-06-05 | 2002-10-10 | Viessmann Werke Kg | Atmosphärischer Gasbrenner |
DE10157801A1 (de) * | 2001-11-27 | 2003-06-05 | Fritz Schoppe | Drehrost für die Verbrennung von stückigem Brennstoff |
EP1990580A1 (de) * | 2007-05-10 | 2008-11-12 | Siemens Aktiengesellschaft | Brennerkomponente für einen Gasturbinenbrenner |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1360796A (en) * | 1970-09-12 | 1974-07-24 | Dunlop Holdings Ltd | Burners |
JPS5921446B2 (ja) * | 1979-01-19 | 1984-05-19 | 松下電器産業株式会社 | ガスバ−ナ |
DE3710244A1 (de) * | 1987-03-28 | 1989-06-22 | Vaillant Joh Gmbh & Co | Brenner, insbesondere gasbrenner, brennerrost aus solchen brennern und wasserheizer mit solchen brennern |
AT397567B (de) * | 1988-02-08 | 1994-05-25 | Vaillant Gmbh | Gasbrenner |
DE19545844A1 (de) * | 1995-12-08 | 1997-06-12 | Buderus Heiztechnik Gmbh | Gasbrenner |
-
1998
- 1998-10-02 DE DE19845356A patent/DE19845356A1/de not_active Withdrawn
-
1999
- 1999-08-04 DE DE59909734T patent/DE59909734D1/de not_active Expired - Fee Related
- 1999-08-04 EP EP99115368A patent/EP0990845B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE59909734D1 (de) | 2004-07-22 |
DE19845356A1 (de) | 2000-04-06 |
EP0990845A3 (de) | 2000-08-02 |
EP0990845A2 (de) | 2000-04-05 |
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