CH86913A - Process for increasing the heat transfer from heating gases to physical surfaces flushed by liquids or vapors. - Google Patents
Process for increasing the heat transfer from heating gases to physical surfaces flushed by liquids or vapors.Info
- Publication number
- CH86913A CH86913A CH86913DA CH86913A CH 86913 A CH86913 A CH 86913A CH 86913D A CH86913D A CH 86913DA CH 86913 A CH86913 A CH 86913A
- Authority
- CH
- Switzerland
- Prior art keywords
- vapors
- liquids
- heat transfer
- heating gases
- increasing
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B9/00—Steam boilers of fire-tube type, i.e. the flue gas from a combustion chamber outside the boiler body flowing through tubes built-in in the boiler body
- F22B9/18—Component parts thereof; Accessories therefor, e.g. stay-bolt connections
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Description
Verfahren zum Vergrössern der Wärmeübertragung von Heizgasen an von Flüssigkeiten oder Dämpfen bespülte körperliche Flächen. Bekanntlich ist die Wärmeüberleitungs- fäbigkeit von Heizgasen an Heizflächen be deutend geringer als die Wärmeableitungs- fähigkeit von Flüssigkeiten oder Dämpfen.
Zur Vergrösserung der Wärmeübertragung der Heizgase ' an von Flüssigkeiten oder Dämpfen bespülte körperliche Flächen werden nun gemäss der Erfindung durch die Heizgase auch noch in die Heizgaswege eingebaute Metallkörper geheitzt, welche ihre Wärme durch Strahlung ebenfalls an die obenge- nannten Flächen übertragen.
In beiliegender Zeichnung sind Beispiele zur Ausführung des Verfahrens geeigneter Einrichtungen dargestellt.
Fig. 1 stellt den Längsschnitt, Fig. 2 den Querschnitt eines Röhrenkessels dar. a sind eingewalzte, wasserumspülte Heizröhren, L lose eingeschobene, zur Wärmestrahlung die nende Metallkörper, welche die verschiedensten Formen haben können.
Behufs leichter Reini gung können diese Wärmestrahlkörper heraus- genommen werden. Die Heizgase strömen, wie mit Pfeilen angedeutet, inner- und ausser- halb der Wärmestrahlkörper durch, wodurch eine grosse Oberfläche zur Wärmeaufnahme geboten ist.
In Fig. 3 sind Heizkanäle mit länglichem Querschnitte dargestellt. Die Wärmestrahl- körper sind bei c einfache Bleche, bei d Doppeibleclie. Die Wärmeaufnahme und Wärmeabgabe ist selbstverständlich bei d grüsses als bei c.
In Fällen, wo das Wasser in den Röhren zirkuliert und die Heizgase dieselben umspülen, werden auch die Wä rine- strahlkürpcr ausserhalb der Röhren angeordnet.
Process for increasing the heat transfer from heating gases to physical surfaces flushed by liquids or vapors. It is well known that the heat transfer capacity of hot gases on heating surfaces is significantly lower than the heat transfer capacity of liquids or vapors.
To increase the heat transfer of the heating gases to physical surfaces flushed with liquids or vapors, metal bodies built into the heating gas paths are now heated according to the invention by the heating gases, which also transfer their heat to the above-mentioned surfaces by radiation.
The attached drawing shows examples of suitable devices for implementing the method.
Fig. 1 shows the longitudinal section, Fig. 2 shows the cross section of a tubular boiler. A are rolled-in, water-flushed heating tubes, L loosely inserted metal bodies for heat radiation which can have the most varied of shapes.
These radiant heaters can be removed for easy cleaning. As indicated by arrows, the heating gases flow inside and outside the radiant heaters, which means that a large surface area is required for heat absorption.
In Fig. 3 heating channels are shown with elongated cross-sections. The radiant heaters at c are simple sheets, at d double cellos. The heat absorption and heat emission is of course greater with d than with c.
In cases where the water circulates in the tubes and the hot gases wash around them, the heat radiation bodies are also arranged outside the tubes.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH86913T | 1920-01-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH86913A true CH86913A (en) | 1920-10-16 |
Family
ID=4343594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH86913D CH86913A (en) | 1920-01-10 | 1920-01-10 | Process for increasing the heat transfer from heating gases to physical surfaces flushed by liquids or vapors. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH86913A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3207495A (en) * | 1961-02-17 | 1965-09-21 | Dominion Magnesium Ltd | Device for condensing metal vapours |
US4351392A (en) * | 1980-12-22 | 1982-09-28 | Combustion Engineering, Inc. | Heat exchange tube with heat absorptive shield |
US4559998A (en) * | 1984-06-11 | 1985-12-24 | The Air Preheater Company, Inc. | Recuperative heat exchanger having radiation absorbing turbulator |
US4705106A (en) * | 1986-06-27 | 1987-11-10 | Aluminum Company Of America | Wire brush heat exchange insert and method |
WO2005068926A1 (en) * | 2004-01-15 | 2005-07-28 | Pycos Engineering (Uk) Ltd. | Enhanced radiant heat exchanger apparatus |
-
1920
- 1920-01-10 CH CH86913D patent/CH86913A/en unknown
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3207495A (en) * | 1961-02-17 | 1965-09-21 | Dominion Magnesium Ltd | Device for condensing metal vapours |
US4351392A (en) * | 1980-12-22 | 1982-09-28 | Combustion Engineering, Inc. | Heat exchange tube with heat absorptive shield |
US4559998A (en) * | 1984-06-11 | 1985-12-24 | The Air Preheater Company, Inc. | Recuperative heat exchanger having radiation absorbing turbulator |
US4705106A (en) * | 1986-06-27 | 1987-11-10 | Aluminum Company Of America | Wire brush heat exchange insert and method |
WO2005068926A1 (en) * | 2004-01-15 | 2005-07-28 | Pycos Engineering (Uk) Ltd. | Enhanced radiant heat exchanger apparatus |
US7503289B2 (en) | 2004-01-15 | 2009-03-17 | Pycos Engineering Ltd | Enhanced radiant heat exchanger apparatus |
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