DE81924C - - Google Patents
Info
- Publication number
- DE81924C DE81924C DENDAT81924D DE81924DA DE81924C DE 81924 C DE81924 C DE 81924C DE NDAT81924 D DENDAT81924 D DE NDAT81924D DE 81924D A DE81924D A DE 81924DA DE 81924 C DE81924 C DE 81924C
- Authority
- DE
- Germany
- Prior art keywords
- air
- superheater
- heat
- under
- gases
- 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
Links
- 239000007789 gas Substances 0.000 claims description 5
- 239000000567 combustion gas Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 239000003546 flue gas Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G1/00—Steam superheating characterised by heating method
- F22G1/16—Steam superheating characterised by heating method by using a separate heat source independent from heat supply of the steam boiler, e.g. by electricity, by auxiliary combustion of fuel oil
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Supply (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Ueberhitzt man Dampf oder.Gas mit Hülfe direkter Feuerung, so zeigt sich der Uebelstand, dafs die über dem Roste entwickelten Gase zu warm sind, um ohne Schaden für das Material unmittelbar an die Ueberhitzerheizflä'chen geführt zu werden. Die daher zweckmäfsige Abkühlung der Verbrennungsgase wurde bisher zumeist durch Einführung von kalter Luft hinter der Feuerbrücke herbeigeführt. Die Kühlung wird nun damit zwar erreicht, zugleich aber die Ausnutzung der erzeugten Wärme wesentlich verschlechtert; die Feuerungsanlage arbeitet unter ungünstigen Bedingungen, indem eine viel gröfsere Menge Luft mit verhä'ltnifsmäfsig hoher Temperatur in den Schornstein gelangt, als für die vollständige Verbrennung erforderlich ist. Den hierdurch entstehenden Wärmeverlust zu vermeiden, ist der Zweck der vorliegenden Erfindung. Auch hier werden die Verbrennungsgase hinter der Feuerbrücke durch Luft gekühlt, jedoch nicht durch Mischung, sondern durch Oberflächenübertragung, so dafs die Luft selbst weiterhin einer nutzbringenden Verwendung fähig ist.If steam or gas is overheated with the aid of direct firing, the inconvenience appears that the gases developed above the grate are too warm to be without harm to the material to be led directly to the Ueberhitzerheizflä'chen. The therefore appropriate cooling the combustion gases have so far mostly been brought about by introducing cold air behind the fire bridge. the Cooling is now achieved with it, but at the same time the utilization of the generated Heat deteriorated significantly; the combustion system works under unfavorable conditions, by a much larger amount of air at a relatively high temperature in the chimney than is necessary for complete combustion. The resulting Avoiding heat loss is the purpose of the present invention. Here, too, the combustion gases are behind the Fire bridge cooled by air, but not by mixing, but by surface transfer, so that the air itself is still capable of beneficial use.
Die den Rauchgasen entzogene, von der Luft aufgenommene Wärme ermöglicht sonach eine vollständige Ausnutzung ohne Verlust — hierin liegt der technische Erfolg dieser neuen Maafsnahme.The heat extracted from the flue gases and absorbed by the air thus enables full utilization without loss - this is the technical success of this new one Measure.
In der beiliegenden Zeichnung tritt der die Verbrennung der Kohle vermittelnde Rost bei α auf. Die hier entstandenen Rauchgase umspülen hinter der Feuerbrücke die Rohre b, und diese entziehen den Gasen durch Luft, welche die Rohre durchstreicht, einen beliebigen, durch die Gröfse der Heizfläche zu regelnden Theil der Wärme. Die so etwas abgekühlten Rauchgase gelangen alsdann zu dem einen Ueberhitzertheile c und von da in den Kamin. Die in den Rohren b erhitzte Luft wird einem zweiten Ueberhitzertheile d zugeführt und ihre Wärme so weit als möglich ausgenutzt. Die hier nicht ausnutzbare Wärme wird sodann noch dadurch vortheilhaft benutzt, dafs die Luft nach Verlassen der Ueberhitzerschlange entweder — wie gezeichnet — durch die Leitung e unter den Rost gelangt oder aber unter die Rohre b zurückgeführt wird. Die Ueberhitzerschlangen können entweder — wie hier gezeichnet — nach dem Grundsatze des Gegenstromes oder des Gleichstromes oder endlich nach einer Combination beider angeordnet sein.In the accompanying drawing, the rust that promotes the combustion of the coal occurs at α. The smoke gases produced here wash around the pipes b behind the fire bridge, and these extract any part of the heat from the gases by means of air which passes through the pipes, which can be regulated by the size of the heating surface. The somewhat cooled flue gases then reach one of the superheater parts c and from there into the chimney. The air heated in the tubes b is fed to a second superheater part d and its heat is used as far as possible. The heat that cannot be used here is then used to advantage in that the air, after leaving the superheater coil, either passes through the line e under the grate, as shown, or is returned under the pipes b . The superheater coils can either - as shown here - be arranged according to the principle of countercurrent or cocurrent or, finally, a combination of both.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE81924C true DE81924C (en) |
Family
ID=354367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DENDAT81924D Active DE81924C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE81924C (en) |
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0
- DE DENDAT81924D patent/DE81924C/de active Active
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