AT145283B - Heat exchanger. - Google Patents

Heat exchanger.

Info

Publication number
AT145283B
AT145283B AT145283DA AT145283B AT 145283 B AT145283 B AT 145283B AT 145283D A AT145283D A AT 145283DA AT 145283 B AT145283 B AT 145283B
Authority
AT
Austria
Prior art keywords
heat exchanger
ribs
fins
speed
desc
Prior art date
Application number
Other languages
German (de)
Inventor
Richard Ing Herrmann
Original Assignee
Richard Ing Herrmann
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Richard Ing Herrmann filed Critical Richard Ing Herrmann
Application granted granted Critical
Publication of AT145283B publication Critical patent/AT145283B/en

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Landscapes

  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Wärmeaustauscher. 



   Es ist bekannt,   Wärmeaustauscher   zwischen Gas und Wasser so zu bauen, dass einzelne Gruppen von Rippenrohren nacheinander vom heissen Gasstrom   durchflossen   werden (Fig. 1). Die Rippen auf jedem Rippenrohr haben voneinander denselben Abstand, hingegen kann die Zahl der Rippen auf jedem Rohr der einzelnen Gruppen verschieden sein. Solche   Rippenrohrgruppen   ergeben hintereinandergeschaltet 
 EMI1.1 
 überall die gleiche Geschwindigkeit. Diese ist in der Mitte infolge des Auftriebes am grössten und sinkt gegen die Ränder hin (Linie   a-b-c-d   im   Geschwindigkeitsschaubild).   



   Trifft dieser Gasstrom den vorerwähnten Heizkörper, so werden besonders die mittleren Rippen der ersten Rippenrohrgruppe durch die grössere Wärmemenge stärker belastet als die seitlichen Rippen, welche ungleiche Wärmeverteilung zu einer vorzeitigen Zerstörung der mittleren Rippen führt. 



   Zweck der Erfindung ist es, durch eine besondere Austeilung der Rippen in den von den Heizgasen zuerst getroffenen Rippenrohrgruppen dem Gasstrom im ganzen   Strömungsquerschnitt   eine gleich grosse Geschwindigkeit zu erteilen und dadurch sämtliche Rippen einer Rohrgruppe gleichmässig zu belasten. 



   Dies geschieht (laut Fig. 2 der Zeichnung) durch Veränderung der Abstände der   flächengleichen   
 EMI1.2 
 keiten gleich werden und eine Wärmeverteilung nach der Linie   a-b1-c1-rl     im Geschwindigkeitsschau-   bild (Fig.. 2) erzielt-wird. 
 EMI1.3 
 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Heat exchanger.



   It is known to build heat exchangers between gas and water in such a way that the hot gas stream flows through individual groups of finned tubes one after the other (FIG. 1). The fins on each finned tube have the same distance from one another, but the number of fins on each tube of the individual groups can be different. Such finned tube groups are connected in series
 EMI1.1
 the same speed everywhere. This is greatest in the middle due to the lift and sinks towards the edges (line a-b-c-d in the speed graph).



   If this gas flow hits the aforementioned radiator, the central ribs of the first group of finned tubes are particularly stressed by the greater amount of heat than the lateral ribs, which uneven heat distribution leads to premature destruction of the central ribs.



   The purpose of the invention is to give the gas flow an equally high velocity in the entire flow cross-section through a special distribution of the ribs in the ribbed tube groups first hit by the heating gases and thereby to load all the ribs of a tube group evenly.



   This is done (according to Fig. 2 of the drawing) by changing the spacing of the same area
 EMI1.2
 and a heat distribution according to the line a-b1-c1-rl in the speed diagram (Fig. 2) is achieved.
 EMI1.3
 

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

 

Claims (1)

dadurch gekennzeichnet, dass entsprechend der durch Eigenauftrieb verursachten Geschwindigkeitsvergrösserung der heissen Abgase in der Mitte des Strömungsquerschnittes die Rippen eines oder mehrerer Rippenheizrohre gegen die Mitte zu immer kleinere Abstände voneinander oder immer grössere Material- EMI1.4 EMI1.5 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. characterized in that according to the increase in speed of the hot exhaust gases caused by self-buoyancy in the middle of the flow cross-section, the fins of one or more finned heating pipes towards the center are spaced ever smaller from each other or ever larger material EMI1.4 EMI1.5 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT145283D 1935-01-29 1935-01-29 Heat exchanger. AT145283B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT145283T 1935-01-29

Publications (1)

Publication Number Publication Date
AT145283B true AT145283B (en) 1936-04-10

Family

ID=3643553

Family Applications (1)

Application Number Title Priority Date Filing Date
AT145283D AT145283B (en) 1935-01-29 1935-01-29 Heat exchanger.

Country Status (1)

Country Link
AT (1) AT145283B (en)

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