DE491407C - Coal-dust-fired vertical tube boiler with a reverse flame blown in from below - Google Patents
Coal-dust-fired vertical tube boiler with a reverse flame blown in from belowInfo
- Publication number
- DE491407C DE491407C DEK112238D DEK0112238D DE491407C DE 491407 C DE491407 C DE 491407C DE K112238 D DEK112238 D DE K112238D DE K0112238 D DEK0112238 D DE K0112238D DE 491407 C DE491407 C DE 491407C
- Authority
- DE
- Germany
- Prior art keywords
- boiler
- vertical tube
- combustion chamber
- coal
- dust
- 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
Links
- 238000002485 combustion reaction Methods 0.000 claims description 16
- 239000000567 combustion gas Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 206010022000 influenza Diseases 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims 3
- 239000003546 flue gas Substances 0.000 description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 7
- 239000003245 coal Substances 0.000 description 3
- 238000013021 overheating Methods 0.000 description 3
- 239000002956 ash Substances 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B21/00—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically
- F22B21/02—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from substantially-straight water tubes
- F22B21/14—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from substantially-straight water tubes involving a single upper drum and two or more lower drums
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Description
Kohlenstaubgefeuerter Steilrohrkessel mit von unten eingeblasener Umkehrflamme Die vorliegende Erfindung betrifft einen köhlenstaubgefeuerten Steilrohrkessel mit von unten eingeblasener Umkehrflamme. Bei diesen Kesseln verlassen die Verbrennungsgase den Brennraum unten beiderseits, damit sich die Flamme im Brennraum symmetrisch entwickelt. Bei den bekannten Kesseln dieser Art werden die Rauchgase, nachdem sie in den Kesselzügen abgekühlt worden sind, beiderseits des Brennraumes nach unten oder oben aus dem Kessel in zwei getrennte Rauchgassammelkanäle geführt, die sich dann neben oder über dem Kessel vereinigen. Der beiderseitige Rauchgasabzug bringt erhebliche Nachteile mit sich. Bei beiderseitigem Abzug nach unten wird durch die unter denn Kessel liegenden Rauchgassammelkanäle das Kesselfundament und der Aschenkeller stark erwärmt, die Brenner nebst ihren Regeleinrichtungen sind nicht oder nur sehr schwer zugänglich, auch die Lufterhitzer und Warmluftkanäle sind unzugänglich, und die Asche kann aus dem Brennraum nicht nach unten abgezogen werden. Bei beiderseitigem Rauchgasabzug nach oben werden in entsprechender Weise Oberkessel, Dampfsammler und Überhitzer nebst ihren Regel- und Sicherheitseinrichtungen sehr schwer zugänglich oder unzugänglich.Coal-dust-fired vertical tube boiler with blown in from below Reverse Flame The present invention relates to a coal dust-fired vertical tube boiler with reverse flame blown in from below. The combustion gases leave these boilers the combustion chamber at the bottom on both sides so that the flame in the combustion chamber is symmetrical developed. In the known boilers of this type, the flue gases are after them have cooled down in the boiler passes on both sides of the combustion chamber or from the top of the boiler into two separate flue gas collecting ducts, which are located then combine next to or above the boiler. The flue gas vent on both sides brings with considerable disadvantages. In the event of a downward deduction on both sides, the The boiler foundation and the ash cellar are located under the boiler strongly heated, the burners and their control devices are not or only very much Difficult to access, the air heater and hot air ducts are also inaccessible, and the ashes cannot be withdrawn downwards from the combustion chamber. With mutual Upper boiler and steam collector are used in a corresponding manner and superheaters and their control and safety devices are very difficult to access or inaccessible.
Bei dem Kessel nach vorliegender Erfindung werden diese Nachteile vermied,-n durch eine neuartige Führung der Rauchgase. Von den den Brennraum unten beiderseits verlassenden Verbrennungsgasen wird der eine Strom zwischen dem Oberkessel und der ßrennraumdecke auf die andere Kesselseite hindurchgeführt, wo er sich mit dem anderen Verbrcnnungsgasstrome vereinigt. Hierdurch wird die einseitige Rauchgasabführung aus dem Kessel und die Anordnung der Rauchgasvorwärmer für Luft oder Speisewasser in der bei Steilrohrkesseln mit Rostfeuerungen üblichen Weise hinter dem Kessel ermöglicht. und alle eingangs genannten Nachteile werden vermieden.With the boiler of the present invention, these disadvantages become apparent avoided -n through a new way of guiding the flue gases. From the combustion chamber below Combustion gases leaving both sides become one stream between the upper boiler and the ßrennraumdecke passed through to the other side of the boiler, where it is with combined with the other combustion gas stream. This is the unilateral smoke evacuation from the boiler and the arrangement of the flue gas preheater for air or feed water in the usual way for vertical tube boilers with grate furnaces behind the boiler enables. and all the disadvantages mentioned at the beginning are avoided.
Die neuartige Rauchgasführung bringt noch einen weiteren Vorteil in- bezug auf leichte Regelung der Dampfüberhitzung mit sich. Die Überhitze:rheizfläche wird vorwiegend in dem Rauchgasstrome angeordnet, der nicht zwischen Obexkessel und Brennraumdecke hindurchgeführt wird. Durch Veränderung des Strömungswiderstandes einer der beiden Rauchgasströme kann dann die tberhitzungstemperatur leicht eingeregelt werden.The novel flue gas routing brings another advantage in with respect to easy regulation of steam overheating with it. The overheat: heating surface is mainly arranged in the flue gas stream, which is not between the Obex boiler and combustion chamber ceiling is passed through. By changing the flow resistance One of the two flue gas flows can then easily regulate the overheating temperature will.
In der Zeichnung ist der Erfindungsgegenstand in einem Ausführungsbeispiele dargestellt.In the drawing, the subject matter of the invention is in one exemplary embodiment shown.
ist der Oberkessel, der durch Rohrbündel mit den Unterkesseln -B und C verbunden ist. Der Brennraum D wird durch die zu dichten Rohrwänden zusammengezogenen Rohrreihen E gebildet. F sind die Kohlenstaubbrenner, die Kohlenstaub und Verbrennungsluft in der Mittellinie des Brennraumes senkrecht nach oben einblasen. Die Verbrennungsgase strömen beiderseits an den dichten Rohrwänden E entlang abwärts und treten durch öffnungen Cr und H in den dichten Rohrwänden E unten beiderseits aus dem Brennraum D aus und in die Kesselzüge 1( bzw. L ein. Aus dem Zuge I( strömen die Rauchgase zwischen dem Oberkessel A und der Brennraumdecke hindurch nach der Austrittsöffnung M, während diel Rauchgase aus dem Zuge L unmittelbar zur Austrittsöffnung M strömen. Die H:aizfläche des überhitzers N ist vorwiegend in dem Zuge L angeordnet. Hierdurch wird eine gleichmäßige Abkühlung der beiden Verbrennungsga.sströme erreicht, trotzdem die von ihnen bestrichenen wasserberührten Heizflächen verschieden groß sind. Der Sattdampf tritt durch den Vierkantkasten ni ein, der Heißdampf durch den Vierkantkasten rz° aus. Durch Veränderung des Durchtrittsquerschnittes P zwischen dem Oberkessel A und der Brennraumdecke, z. B. durch Einlegen feuerfester Platten, kann die- Übierhitzungsteinperatur leicht eingeregelt werden. Hinter dem Kessel sind in gut zugänglicher Weise Lufterhitzer Q angeordnet.is the upper boiler, which is connected to the lower boilers -B and C by tube bundles. The combustion chamber D is formed by the tube rows E drawn together to form tight tube walls. F are the pulverized coal burners that blow pulverized coal and combustion air vertically upwards in the center line of the combustion chamber. The combustion gases flow downwards on both sides along the tight pipe walls E and exit through openings Cr and H in the tight pipe walls E at the bottom on both sides from the combustion chamber D and into the boiler flues 1 (or L. From the flue I (the flue gases flow between the upper boiler A and the combustion chamber ceiling through to the outlet opening M, while the flue gases from the pass L flow directly to the outlet opening M. The heating surface of the superheater N is mainly arranged in the pass L. This ensures uniform cooling of the two combustion gas flows The saturated steam enters through the square box ni, the superheated steam through the square box rz °. By changing the passage cross-section P between the upper boiler A and the combustion chamber ceiling, e.g. by inserting it refractory plates, the overheating stone temperature can be easily adjusted. Behind the K Essel air heaters Q are arranged in an easily accessible manner.
An Stelle eines einzigen Oberkessels A können selbstverständlich auch mehrere Oberkessel angeordnet werden. Das Wesentliche der Erfindung liegt darin; daß durch diej Führung der Rauchgase der einen Kesselseite von dieser Seite zur andern über den Brennraum hinweg der doppelseitige Rauchgasabzug aus dem Kessel mit seinen Nachteilen vermieden wird.Instead of a single upper boiler A can of course also several upper boilers can be arranged. The essence of the invention lies in this; that by the guidance of the flue gases from one side of the boiler from this side to the on the other hand, the double-sided flue gas outlet from the boiler over the combustion chamber with its disadvantages is avoided.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK112238D DE491407C (en) | 1928-11-24 | 1928-11-24 | Coal-dust-fired vertical tube boiler with a reverse flame blown in from below |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK112238D DE491407C (en) | 1928-11-24 | 1928-11-24 | Coal-dust-fired vertical tube boiler with a reverse flame blown in from below |
Publications (1)
Publication Number | Publication Date |
---|---|
DE491407C true DE491407C (en) | 1930-02-10 |
Family
ID=7242416
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEK112238D Expired DE491407C (en) | 1928-11-24 | 1928-11-24 | Coal-dust-fired vertical tube boiler with a reverse flame blown in from below |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE491407C (en) |
-
1928
- 1928-11-24 DE DEK112238D patent/DE491407C/en not_active Expired
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