AT113385B

AT113385B - Pulverized coal firing.

Info

Publication number: AT113385B
Authority: AT
Inventors: Julius Dipl Ing Haack
Original assignee: Julius Dipl Ing Haack
Priority date: 1923-03-07
Filing date: 1924-03-01
Publication date: 1929-05-25

Description

  

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   liohlenstaubfeuerung.   



   Um bei   Kohlenstaubfeuerungen   eine gleichmässige Flammenentwicklung sowie die Erzeugung von Dampfhöchstmengen unter höchst   erreichbarem Wirkungsgrad   und unter vollkommenster Ausnutzung des Baustoffes der Feuerungskammer zu erzielen, soll gemäss der Erfindung der Feuerraum so bemessen sein, dass sein Rauminhalt in den einzelnen Querschnitten entsprechend oder annähernd entsprechend der Zu-und Abnahme des Rauminhaltes der Gase im Feuerraum zu-und abnimmt, welche ihrerseits im wesentlichen abhängig ist von der annähernd   vorausbestimmbaren   Verbrennungstemperatur der Gase in den einzelnen Zonen des Feuerraumes. 



   Bei einer derartigen Gestaltung des Feuerraumes wird jeglicher Stau und Wirbelbildung in der Flammenführung und deren Rückwirkung auf die Flammenbildung sowie Störungen in der Zündung verhütet und damit auch eine grösstmögliche Schonung des Kesselmauerwerks erzielt. 



   Die Zeichnung veranschaulicht eine nach diesen Gedanken gestaltete Kohlenstaubfeuerung als ein Ausführungsbeispiel im Schnitt. 

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   dust firing.



   In order to achieve an even flame development and the generation of maximum amounts of steam with the highest possible degree of efficiency and with the most complete utilization of the building material of the furnace, the furnace should be dimensioned according to the invention so that its space in the individual cross-sections corresponds or approximately corresponds to the dimensions of the and a decrease in the volume of the gases in the furnace increases and decreases, which in turn is essentially dependent on the approximately predeterminable combustion temperature of the gases in the individual zones of the furnace.



   With such a design of the combustion chamber, any accumulation and vortex formation in the flame guide and their repercussions on the flame formation as well as malfunctions in the ignition are prevented and thus the greatest possible protection of the boiler masonry is achieved.



   The drawing illustrates a pulverized coal furnace designed according to this concept as an exemplary embodiment in section.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims

The combustion chamber a of the pulverized coal furnace is designed in such a way that its cross-sections, measured perpendicular to the flame path, the center line of which is indicated by the line g, initially increase, then, if necessary, remain the same for a short part and then decrease again, u. so that the area of the cross-sections increases and decreases to the same extent or approximately to the same extent as the volume of the combustion gases in the individual zones according to the temperature profile, assuming a uniform or. approximately uniform pressure and speed progression, increasing and decreasing. PATENT CLAIM:

"Coal, deaf-firing, characterized in that the cross-sections of the combustion chamber increase and decrease to the same extent or approximately to the same extent as the volume of the gases in the individual zones increases and decreases in accordance with the temperature profile." EMI1.1 ** WARNING ** End of CLMS field may overlap beginning of DESC **.