DE1911557U - HEAT EXCHANGER WITH DOUBLE RING SLIT PIPE SYSTEM. - Google Patents
HEAT EXCHANGER WITH DOUBLE RING SLIT PIPE SYSTEM.Info
- Publication number
- DE1911557U DE1911557U DEM39597U DEM0039597U DE1911557U DE 1911557 U DE1911557 U DE 1911557U DE M39597 U DEM39597 U DE M39597U DE M0039597 U DEM0039597 U DE M0039597U DE 1911557 U DE1911557 U DE 1911557U
- Authority
- DE
- Germany
- Prior art keywords
- double ring
- pipe system
- heat exchanger
- core rod
- vertices
- 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
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/025—Tubular elements of cross-section which is non-circular with variable shape, e.g. with modified tube ends, with different geometrical features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
- F28F1/424—Means comprising outside portions integral with inside portions
- F28F1/426—Means comprising outside portions integral with inside portions the outside portions and the inside portions forming parts of complementary shape, e.g. concave and convex
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Geometry (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
Maschinenfabrik Augsburg—Nürnberg AG· N>Maschinenfabrik Augsburg-Nürnberg AG · N>
/* ., Nürnberg/ *., Nuremberg
fflirnberg, 24. 10. 1961 Wärmeaustauscher mit Doppelringspalt-Eohrsystemenfflirnberg, October 24, 1961 Heat exchangers with double ring gap pipe systems
Die Erfindung bezieht sich auf einen Wärmeaustauscher mit je von drei konzentrischen Rohren oder von zwei konzentrischen Kehren und einem Kernstab gebildeten Doppelringepalt-Rohrsystenien. Derartige Doppelringspalt-Vvärmeaustauecher eignen sich vornehmlich für kleine Durehflußmengen, also für wertvolle Wärmeträger, da durch kleine Spaltweiten relativ hohe Strömungsgeschwindigkeiten und damit ein guter Wärmeübergang erreicht werden können. Außerdem wird durch die kleinen hydraulischen Durchmesser, die bei solchen Ringspalten erzielt werden können, die Wärmeübertragung erheblich besser als in Kreisquerschnitten. Der Wärmeübergang und der Druckverlust sind bei der Strömung in Doppelringquerschnitten stark abhängig von der Eotationssymmetrie der j Strömungsquerschnitte. Um die Eotationssymmetrie der RingThe invention relates to a heat exchanger with three concentric tubes or two concentric tubes Bends and a core rod formed double ring gap pipe systems. Such double ring gap Vwärmeaustauecher are primarily suitable for small Durehflusszüge, so for Valuable heat transfer medium, since relatively high flow speeds due to the small gap widths and thus good heat transfer can be achieved. In addition, due to the small hydraulic diameter that occurs in such annular gaps can be achieved, the heat transfer significantly better than in circular cross-sections. The heat transfer and the pressure loss are strongly dependent on the eotation symmetry of the flow in double ring cross-sections j flow cross-sections. To the eotation symmetry of the ring
querschnitte einzuhalten, werden an den Eohren und dem Kernstab Sentriernocken, Stiite, Bleche oder ähnl. vorgesehen. Die Anbringung solcher Zentriermittel ist mit einem hohen !•iaterial- und Pertigungsaufwand verbunden. Außerdem wird durch die Zentriermittel der -Jtrömurigswiderstand in de^i Rohrsystem vergrößert.Cross-sections to be adhered to are on the ears and the core rod Centering cams, sticks, sheets or similar. intended. The attachment of such centering means is associated with a high level of material and manufacturing costs. Also will through the centering means of the -Jtrömurigswiderstanderstand in the pipe system enlarged.
Diese ITachteile werden gemäß der Erfindung dadurch vermieden, daß das mittlere Bohr in gleichmäßigen Abständen je um 20.7221 /These disadvantages are avoided according to the invention by that the middle hole is evenly spaced by 20.7221 /
versetzt in eine elliptieche oder in eine andere flache Form gebracht ist, so daß es an den Scheitelpunkten der großen Achse der Ellipse bzw. Form das äußere Rohr und an den Scheitelpunkten der kleinen Achse der Ellipse bzw.is offset in an elliptical or other flat shape , so that it is at the vertices of the major axis of the ellipse or shape, the outer tube and at the vertices of the minor axis of the ellipse or shape.
t Form das innere Rohr oder den Kernstab zentriert. Die neuet centered shape the inner tube or core rod. The new
Art der Zentrierung erfordert keinen besonderen Materialaufwand. Die Herstellung der Zentrierung ist einfach, da dae mittlere Rohr durch ein einfaches Preßwerkzeug in die gewünschte Form gedrückt werden kann. Es b-aucht nur ein Rohr Je Rohrsystem behandelt zu werden, während bei den bekannten Nocken oder Stiften mindestens zwei Rohre bearbeitet werden müssen. Die Zentrierung mittels des gepreßten Zwischenrohres bietet der Strömung keinen Formwiderstand* Die Einbuße an auläesiger Innendruckbeanspruchung ist nur unwesentlich geringer als bei kreisförmigem Querschnitt des mittleren Rohres.The type of centering does not require any special material expenditure. The production of the centering is easy, since the middle tube can be inserted into the desired one by means of a simple pressing tool Shape can be pressed. There is also only one pipe per pipe system to be dealt with, while the known ones Cams or pins at least two tubes need to be machined. The centering by means of the pressed intermediate tube offers the flow no form resistance * The loss of external The internal pressure load is only insignificantly lower than with a circular cross-section of the central tube.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung schematisch dargestellt. Es zeigt;An exemplary embodiment of the invention is shown schematically in the drawing. It shows;
Pig.1 die perspektivische Ansicht mit QuerschnittPig.1 the perspective view with cross section
eines "bekannten Doppelringspalt-Rohrsystems unda "known double ring gap pipe system and
Fig.2 die perspektivische Ansicht mit Querschnitt eines Eoppelrin^spalt-TiO-Tirsystems ^emäß der Erfindung.2 shows the perspective view with a cross section of a Eoppelrin ^ split TiO-Tirsystems ^ em according to the invention.
Hach den Figuren wiri das einzelne der für den Wärmeaustauscher verwendeten Rohrsysterne von zwei konzentrischen Rohren ' und 2 und einem Kernstab 3 gebildet. Um bei dem Rohrsystem gemäß Fig.1 die Dop elringepalte a, b aufrechtzuerhalten, sind in "bekannter Weise Zentriernocken, Stifte oder dgl. notwendig. According to the figures, each one is used for the heat exchanger used pipe systems of two concentric pipes' and 2 and a core rod 3 are formed. In order to maintain the Dop elringepalte a, b in the pipe system according to FIG in "known manner, centering cams, pins or the like. Necessary.
20.7221 ./. 20.7221 ./.
'■1
fr '■ 1
fr
Solche Zentriermittel werden bei der Ausbildung des Doppelringspalt-Eonrsystems nach Fig.2 vermieden. Hier iat das mittlere Rohr 2 in gleichmäßigen Abständen 4 je um 90° versetzt in eine elliptische Form 5 gedrückt. Es liegt, wie der Querschnitt zeigt, an den Scheitelpunkten 6 der großen Achse der Ellipse an den, äußeren Rohr 1 an und zentriert dieses. An den Scheitelpunkten 7 der kleiner] Achse liegt das Rohr 2 an dem Kernstab 3 an, wodurch dieser ebenfalls zentriert wird. Die Eindrückungen des Rohres 2 werden bo vorgenommen, daß es an äen Einwalzstellen den kreisförmigen Querschnitt behält«Such centering means are used in the formation of the double ring gap Eonrsystem avoided according to Fig.2. Here the middle tube 2 is offset by 90 ° at regular intervals 4 pressed into an elliptical shape 5. It lies like the cross section shows, at the vertices 6 of the major axis of the ellipse on the outer tube 1 and centers it. At the vertices 7 of the minor] axis the tube 2 rests on the core rod 3, whereby this is also centered. The impressions of the tube 2 are made bo that it retains the circular cross-section at the rolled-in points «
Anstatt das Rohr 2 mit elliptisehen Eindrückungen zu versehen, kann βε auch in gleichmäßigen Abständen je um 90 ver— setzt in eine andere flache Form gebracht werden, mit welcher derselbe Zweck erreicht wird.Instead of providing the tube 2 with elliptical indentations, βε can also be reduced by 90 at regular intervals. sets in another flat shape with which the same purpose is achieved.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM39597U DE1911557U (en) | 1961-10-26 | 1961-10-26 | HEAT EXCHANGER WITH DOUBLE RING SLIT PIPE SYSTEM. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM39597U DE1911557U (en) | 1961-10-26 | 1961-10-26 | HEAT EXCHANGER WITH DOUBLE RING SLIT PIPE SYSTEM. |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1911557U true DE1911557U (en) | 1965-03-11 |
Family
ID=33357720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEM39597U Expired DE1911557U (en) | 1961-10-26 | 1961-10-26 | HEAT EXCHANGER WITH DOUBLE RING SLIT PIPE SYSTEM. |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1911557U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3738727A1 (en) * | 1987-11-14 | 1989-06-01 | Schmidt Sche Heissdampf | HEAT EXCHANGER |
-
1961
- 1961-10-26 DE DEM39597U patent/DE1911557U/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3738727A1 (en) * | 1987-11-14 | 1989-06-01 | Schmidt Sche Heissdampf | HEAT EXCHANGER |
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