DE479619C - Air heating system installed in an exhaust duct and connected to feed water preheating - Google Patents
Air heating system installed in an exhaust duct and connected to feed water preheatingInfo
- Publication number
- DE479619C DE479619C DEE36353D DEE0036353D DE479619C DE 479619 C DE479619 C DE 479619C DE E36353 D DEE36353 D DE E36353D DE E0036353 D DEE0036353 D DE E0036353D DE 479619 C DE479619 C DE 479619C
- Authority
- DE
- Germany
- Prior art keywords
- feed water
- air
- exhaust duct
- heating system
- air heating
- 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
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M20/00—Details of combustion chambers, not otherwise provided for, e.g. means for storing heat from flames
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Supply (AREA)
- Chimneys And Flues (AREA)
Description
In einen Abgaskanal eingebaute, mit einer Speisewasservorwärmung verbundene Lufterhitzeranlage Gegenüber den bekannten, in einen Abgaskanal eingebauten und mit einer Speisewasservorw ärmung verbundenen Lufterhitzeranlagen besteht das Wesen der Erfindung darin, daß in den größeren Teil des in der Breite in bekannter Weise unterteilten Abgaskanals ein den Unterwind im Kreuz- und Gleichstrom führender Lufterhitzer sowie ein in Richtung der Heizgasströmung hinter diesem liegender Speisewasservorwärmer und in- den kleineren, gleich langen Teil des Kanals ein die Zusatzluft im Kreuz- und Gegenstrom zu den Abgasen führender Lufterhitzet eingebaut sind.Built into a flue gas duct and connected to a feed water preheater Air heater system Compared to the known, built into an exhaust duct and there is the essence of air heating systems connected with feed water preheating the invention is that in the greater part of the width in a known manner subdivided exhaust duct an air heater leading the underwind in cross and direct current as well as a feed water preheater located behind this in the direction of the heating gas flow and in the smaller, equally long part of the duct, the additional air in the cross and counterflow to the exhaust gases leading air heating are built.
Durch die Anlage gemäß der Erfindung wird ermöglicht, die gesamte für eine Feuerung notwendige Luft je nach Erfordernis vorzuwärmen, d. h. es wird durch dieselben Abgase die Zusatzluft in bekannter Weise auf eitre höhere Temperatur als der Unterwind gebracht, indem nämlich die Zusatzluft im Kreuz- und Gegenstrom zu den Abgasen strömt, während der Unterwind im Kreuz-und Gleichstrom mit einem Teil der Abgase fließt, die ihre noch verbleibende Wärme dann an einen Speisewasservorwärmer abgeben.The system according to the invention enables the entire to preheat the air necessary for a furnace as required, d. H. it will by means of the same exhaust gases the additional air in a known manner at a higher temperature brought as the downwind, namely by the additional air in cross and countercurrent flows to the exhaust gases, while the downwind in cross and direct current with one Part of the exhaust gas flows, the remaining heat then to a feed water preheater hand over.
In der Zeichnung ist eine Ausführung der Erfindung schematisch veranschaulicht.An embodiment of the invention is illustrated schematically in the drawing.
In den Weg der aus den öffnungen a abströmenden Abgase sind nebeneinander zwei Lufterhitzer b, c eingebaut. Der Lufterhitzer c nimmt in der Breite den größeren, der Lufterhitzer b den kleineren Teil des Abgasweges ein. Durch den Lufterhitzer b tritt die Zusatzluft für die Feuerung im Kreuz- und Gegenstrom zu den Abgasen hindurch, indem sie unter der Wirkung des im Feuerraum herrschenden Unterdruckes durch die Stutzen d in den Vorwärmet b eintritt und durch die Stutzen e zur Feuerung abströmt. Durch den VOnvärmer c wird der anzuwärmende Unterwind vorteilhaft mittels eines Gebläses f im Kreuz- und Gleichstrom mit den Abgasen gefördert.In the path of the exhaust gases flowing out of the openings a are side by side two air heaters b, c installed. The air heater c takes the larger, the air heater b takes up the smaller part of the exhaust gas path. Through the air heater b the additional air for the furnace enters in cross and counter flow to the flue gases by being under the effect of the negative pressure in the combustion chamber enters the preheating unit b through the nozzle d and to the furnace through the nozzle e flows off. By means of the heater c, the underwind to be heated is advantageously achieved by means of a fan f promoted in cross and direct current with the exhaust gases.
:Um die Temperatur der Abgase möglichst vollständig auszunutzen, ist dann noch hinter dem zweiten Unterwindvorwärmer c in an sich bekannter Weise ein Speisewasservorwärmer g eingeschaltet.: In order to use the temperature of the exhaust gases as fully as possible, is then behind the second underwind preheater c in a manner known per se Feed water preheater g switched on.
Durch Ausbildung des Zusatzluftvorwärwärmers b derart,- daß er dieselbe Länge wie der Unterwindvorwärmer e und Speisewasservorwärmer g zusammen hat und im Gegenstrom zu den Abgasen betrieben wird, gelingt es, die Zusatzluft auf ungefähr 35o° C vorzuwärmen. Der Unterwind wird dagegen im Lufterhitzer c nur bis etwa 17 5° C vorgewärmt, während die Ausnutzung der übrigen Wärmemenge des größeren Abgasstromes in dem hinter dem Unterwinderhitzer c liegenden Speisewasservorwärmer g erfolgt. Beide Abgasströme treten dann nach ihrem Durchgang durch die Anordnung gemäß der Erfindung mit einer Temperatur von ungefähr i75° C in den Kamin h über.By designing the additional air preheater b in such a way - that it has the same length as the underwind preheater e and feedwater preheater g together and is operated in countercurrent to the exhaust gases, it is possible to preheat the additional air to about 35o ° C. The lower wind is c in the heater only to about 1 7 5 ° C preheated on the other hand, while the utilization of the remaining amount of heat is carried out of the larger exhaust gas flow in the c behind the lower blast stoves lying feedwater g. After passing through the arrangement according to the invention, both exhaust gas flows then pass into the chimney h at a temperature of approximately 175 ° C.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE36353D DE479619C (en) | Air heating system installed in an exhaust duct and connected to feed water preheating |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE36353D DE479619C (en) | Air heating system installed in an exhaust duct and connected to feed water preheating |
Publications (1)
Publication Number | Publication Date |
---|---|
DE479619C true DE479619C (en) | 1929-07-20 |
Family
ID=7077807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEE36353D Expired DE479619C (en) | Air heating system installed in an exhaust duct and connected to feed water preheating |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE479619C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1012722B (en) * | 1952-03-12 | 1957-07-25 | Walther & Cie Ag | Arrangement of the heating surfaces required for heating combustion air with industrial furnaces that work with fluctuating exhaust gas volume with a downstream steam generator |
-
0
- DE DEE36353D patent/DE479619C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1012722B (en) * | 1952-03-12 | 1957-07-25 | Walther & Cie Ag | Arrangement of the heating surfaces required for heating combustion air with industrial furnaces that work with fluctuating exhaust gas volume with a downstream steam generator |
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