DE568037C - Device to prevent pitting on air heater pockets as a result of falling below the dew point - Google Patents
Device to prevent pitting on air heater pockets as a result of falling below the dew pointInfo
- Publication number
- DE568037C DE568037C DENDAT568037D DE568037DD DE568037C DE 568037 C DE568037 C DE 568037C DE NDAT568037 D DENDAT568037 D DE NDAT568037D DE 568037D D DE568037D D DE 568037DD DE 568037 C DE568037 C DE 568037C
- Authority
- DE
- Germany
- Prior art keywords
- air heater
- dew point
- result
- pockets
- falling below
- 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
- 239000007789 gas Substances 0.000 claims description 4
- 239000003546 flue gas Substances 0.000 description 1
- 230000035929 gnawing Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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)
- Central Heating Systems (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Description
Einrichtung zum Verhindern von Anfressungen an Lufterhitzertaschen infolge Taupunktunferschreitung Gegenüber den bekannten Vorschlägen zum Verhindern von Anfressungen in Lufterhitzern infolge Taupunktunterschreitung besteht das Wesen der Erfindung darin, daß an der Stelle des ersten Zusammentreffens der Kaltluft mit den Heizgasen auf die einzelnen Taschen des Lufterhitzers Kappen aufgeschoben sind.Device to prevent pitting on air heater pockets as a result of exceeding the dew point Compared to the known suggestions for prevention The essence consists of pitting in air heaters as a result of falling below the dew point the invention is that at the point of the first meeting of the cold air With the heating gases, the caps are pushed onto the individual pockets of the air heater are.
Durch diese Anordnung wird erreicht, daß wegen des zwischen der Taschenwand und der Kappe verbleibenden kleinen Luftspaltes, an dem der Wärmeübergang einen größeren Widerstand findet, die Zerfressungen durch Taupunktunterschreitungen aufhören.This arrangement achieves that because of the between the pocket wall and the cap remaining small air gap at which the heat transfer a finds greater resistance, the gnawing away by falling below the dew point stop.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung schematisch veranschaulicht. Abb. i zeigt eine Seitenansicht, teilweise im Schnitt, eines mit der Einrichtung versehenen Lufterhitzers, Abb. z einen Grundriß dieses Lufterhitzers, ebenfalls teilweise im Schnitt.An exemplary embodiment of the invention is shown schematically in the drawing illustrated. Fig. I shows a side view, partially in section, one with the air heater provided with the device, Fig.z a floor plan of this air heater, also partly in cut.
Die kalte Luft strömt dem Lufterhitzer durch den Krümmer a zu, umfließt die von den wärmeabgebenden Gasen aufwärts durchflossenen Taschen b und wird durch den gegenüberliegenden Krümmer d abgeführt. Die Anfressungen zeigen sich besonders an den Stellen c des Lufterhitzers, wo die kalte Luft und die heißen Rauchgase mit ihrem größten Temperaturunterschied zusammentreffen. Deshalb sind die Lufterhitzertaschen an dieser Stelle gemäß der Erfindung mit aufgeschobenen Kappen c versehen. Die die Lufterwärmung schaffenden Rauchgase müssen also in ihrer Temperatur zunächst das Fleisch der Lufterhitzertaschen durchdringen, dann auf die Luft des geringen Luftspaltes übergehen und hierauf die Kappen c durchdringen, um sodann auf die durch den Lufterhitzer strömende Luft überzugehen. Andererseits findet dort eine Verringerung des Wärmeüberganges von der Frischluft auf die Wandung der Taschen b statt.The cold air flows to the air heater through the manifold a, flows around it the pockets b through which the heat emitting gases flow upwards and is through the opposite manifold d removed. The cracks are particularly evident at points c of the air heater, where the cold air and the hot flue gases with their greatest temperature difference coincide. That is why the air heater pockets are provided at this point according to the invention with pushed-on caps c. The those The temperature of the smoke gases that create air warming must first of all have the same temperature Penetrate the meat of the air heater pockets, then on the air of the small air gap pass over and then penetrate the caps c, in order then to the through the air heater flowing air to pass. On the other hand, there is a reduction in heat transfer of the fresh air on the wall of the pockets b instead.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE568037T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE568037C true DE568037C (en) | 1933-01-13 |
Family
ID=6568000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT568037D Expired DE568037C (en) | Device to prevent pitting on air heater pockets as a result of falling below the dew point |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE568037C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1162383B (en) * | 1953-05-02 | 1964-02-06 | Steinmueller Gmbh L & C | Steam generator heated by highly aggressive exhaust gases, the evaporator heating surface of which is protected from dew point corrosion by a correspondingly high operating pressure |
-
0
- DE DENDAT568037D patent/DE568037C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1162383B (en) * | 1953-05-02 | 1964-02-06 | Steinmueller Gmbh L & C | Steam generator heated by highly aggressive exhaust gases, the evaporator heating surface of which is protected from dew point corrosion by a correspondingly high operating pressure |
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