DE933288C - Method for operating a cyclone furnace - Google Patents
Method for operating a cyclone furnaceInfo
- Publication number
- DE933288C DE933288C DED15503A DED0015503A DE933288C DE 933288 C DE933288 C DE 933288C DE D15503 A DED15503 A DE D15503A DE D0015503 A DED0015503 A DE D0015503A DE 933288 C DE933288 C DE 933288C
- Authority
- DE
- Germany
- Prior art keywords
- muffle
- gases
- operating
- fire
- cyclone furnace
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C3/00—Combustion apparatus characterised by the shape of the combustion chamber
- F23C3/006—Combustion apparatus characterised by the shape of the combustion chamber the chamber being arranged for cyclonic combustion
- F23C3/008—Combustion apparatus characterised by the shape of the combustion chamber the chamber being arranged for cyclonic combustion for pulverulent fuel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Description
Verfahren zum Betreiben einer Zyklonfeuerung Die Erfindung betrifft ein Verfahren zum Betreiben einer Zyklonfeuerung mit Rückführung abgekühlter Feuergase in den Brennraum sowie tan.gentialer Einführung von Brennstaub und Luft.Method of operating a cyclone furnace The invention relates to a method for operating a cyclone furnace with recirculation of cooled flue gases into the combustion chamber as well as the potential introduction of fuel dust and air.
Bei Brennstaubfeuerungen ist es bekannt, abgekühlte Feuergase in den Brennraum einzuführen, damit sie die Flamme umhüllen oder sich mit ihr mischen. Bei Strahlungsdampferzeugern dient diese bekannte Maßnahme dazu, bei Teillast das Absinken der Dampftemperatur des befeuerten Dampferzeugers mit Überhitzer zu verhindern oder abzuschwächen.In the case of pulverized fuel firing systems, it is known to add cooled fire gases to the Introduce combustion chamber so that they envelop or mix with the flame. In the case of radiant steam generators, this known measure serves to reduce the To prevent lowering of the steam temperature of the fired steam generator with superheater or weaken.
Auch ist bereits eine Feuerungsanlage bekannt, bei welcher den Feuergasen abgekühlte Rauchgase hinter der Brennkammer zugemischt werden. Es bestand aber bei dieser Anlage die Gefahr, daß sich Feuergase und Rauchgase nicht miteinander mischen, sondern nebeneinander die Anlage durchströmen, so daß die Heizflächen nicht gleichmäßig beheizt werden.A combustion system is also already known in which the fire gases cooled flue gases are mixed in behind the combustion chamber. But it persisted this system the danger that the fire gases and smoke gases do not mix with one another, but flow through the system side by side, so that the heating surfaces are not uniform be heated.
Bei der Zyklonfeuerung ist die Feuerleistung der Muffel so groß, daß es einen Verlust an Kühlwirkung bedeuten würde, wollte man die abgekühlten Feuergase in den Nachbrennraum oder in den Strahlungsraum einführen. Andererseits würde es die Verbrennung verzögern, wenn diese abgekühlten Feuergase in der Muffel mit der Flamme vermischt würden. Ihre kühlende Wirkung in der Muffel wäre jedoch für die Dampftemperaturregelung von Vorteil. Deshalb werden gemäß der Erfindung die abgekühlten Feuergase axial, vorzugsweise ohne Drall, in die der Feuergasausströmöffnung gegenüberliegende Stirnseite der Muffel eingeführt. Sie strömen dann als Axialstrahl durch die Muffel, ohne die Verbrennung zu stören und mischen sich mit den Feuergasen erst in der Muffelausströmöffnung. Vorzugsweise werden die Abgase ohne Drall in die Muffel eingeführt, damit sie nicht das Bestreben haben, an die Zylinderwand der Muffel zu gelangen. Voraussetzung ist, daß der Muffel Brennstaub und Luft tangential zugeführt werden, damit-die Abgase in einem geraden Strahl von der Kegelspitze der Muffel zur Feuergasausströmöffnung in der gegenüberliegenden Stirnwand gelangen können.With cyclone firing, the firing capacity of the muffle is so great that it would mean a loss of cooling effect if one wanted the cooled fire gases Introduce into the afterburning room or into the radiation room. Then again it would Delay the combustion when these cooled fire gases in the muffle with the Flame would be mixed. Their cooling effect in the muffle would be for them Steam temperature control is an advantage. Therefore, according to the invention the cooled fire gases axially, preferably without a twist, into the fire gas outlet opening opposite face of the muffle introduced. They then flow as an axial jet through the muffle without disturbing the combustion and mix with the fire gases only in the muffle outlet opening. Preferably, the exhaust gases are in the muffle introduced so that they do not have the tendency to hit the cylinder wall to get to the grouch. The prerequisite is that the muffle dust and air tangentially are supplied so that-the exhaust gases in a straight jet from the apex of the cone Muffle reach the fire gas outlet opening in the opposite end wall can.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED15503A DE933288C (en) | 1953-07-16 | 1953-07-16 | Method for operating a cyclone furnace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED15503A DE933288C (en) | 1953-07-16 | 1953-07-16 | Method for operating a cyclone furnace |
Publications (1)
Publication Number | Publication Date |
---|---|
DE933288C true DE933288C (en) | 1955-09-22 |
Family
ID=7035058
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DED15503A Expired DE933288C (en) | 1953-07-16 | 1953-07-16 | Method for operating a cyclone furnace |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE933288C (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE617377C (en) * | 1930-04-17 | 1935-08-17 | Schmidt Sche Heissdampf Ges M | Superheater with its own combustion and with return of the flue gases for the purpose of mixing with the fire gases |
-
1953
- 1953-07-16 DE DED15503A patent/DE933288C/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE617377C (en) * | 1930-04-17 | 1935-08-17 | Schmidt Sche Heissdampf Ges M | Superheater with its own combustion and with return of the flue gases for the purpose of mixing with the fire gases |
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