DE889487C - Three-phase electrode system for electric ovens - Google Patents
Three-phase electrode system for electric ovensInfo
- Publication number
- DE889487C DE889487C DEN895D DEN0000895D DE889487C DE 889487 C DE889487 C DE 889487C DE N895 D DEN895 D DE N895D DE N0000895 D DEN0000895 D DE N0000895D DE 889487 C DE889487 C DE 889487C
- Authority
- DE
- Germany
- Prior art keywords
- electrodes
- electrode
- phase
- electrode system
- sets
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/0019—Circuit arrangements
- H05B3/0023—Circuit arrangements for heating by passing the current directly across the material to be heated
Landscapes
- Discharge Heating (AREA)
Description
Die Erfindung betrifft ein dreiphasiges Elektrodensystem für solche elektrische Ofen, bei denen die Beschickung den Heizwiderstand bildet und zwei Sätze von Dreiphasenelektroden in je einer horizontalen Ebene angeordnet sind-und paarweise das gleiche Potential besitzen.The invention relates to a three-phase electrode system for such electric ovens in which the load forms the heating resistor and two sets of three-phase electrodes are each arranged in a horizontal plane - and in pairs have the same potential.
Ein allgemein verwendetes Elektrodensystem dieser Art ist in' den Fig. i und 2 der Zeichnung veranschaulicht, von denen Fig. i einen schematischen ausgefalteten zylindrischen Schnitt und Fig. 2 einen Querschnitt darstellt.A commonly used electrode system of this type is in 'den Figs. I and 2 of the drawing illustrate, of which Fig. I is a schematic Unfolded cylindrical section and Fig. 2 shows a cross section.
Wie ersichtlich sind die Elektroden a, b, c des oberen Elektrodensatzes senkrecht oberhalb der Elektroden d, e, f des unteren angebracht.As can be seen, the electrodes a, b, c of the upper set of electrodes are attached vertically above the electrodes d, e, f of the lower one.
Dadurch erhält man, wie in der Zeichnung veranschaulicht, hauptsächlich waagerechte Strombahnen, die den Querschnitt des Schachtes nur unvollständig decken.Thereby, as illustrated in the drawing, one mainly obtains horizontal current paths that only incompletely cover the cross-section of the shaft.
Gemäß der vorliegenden Erfindung wird eine bessere Ausnutzung= der Elektroden dadurch erzielt, daß die beiden Sätze von Dreiphasenelektroden einen solchen senkrechten Abstand haben und um einen solchen Winkel zueinander versetzt sind, daß der gegenseitige Abstand der einzelnen Elektroden jedes Satzes ungefähr gleich dem Abstand jeder Elektrode des einen Satzes von der nächstliegenden ungleichnamigen Elektrode des anderen Satzes ist.According to the present invention, better utilization = the Electrodes achieved by having the two sets of three-phase electrodes have such a perpendicular distance and offset from one another by such an angle are that the mutual spacing of the individual electrodes of each set is approximately equal to the distance of each electrode of one set from the nearest unlike one Electrode of the other set is.
Ein solches System ist in den Fig. 3 und q. der (Zeichnung veranschaulicht, in denen es gezeigt ist, daß man außer den waagerechten Strombahnen auch diagonale Strombahnen erhält, nämlich zwischen den Elektroden a, b, c des oberen Elektrodensatzes und d, e, f des unteren Elektrodensatzes.Such a system is shown in Figs. 3 and q. the (drawing illustrates, in which it is shown that in addition to the horizontal current paths, diagonal current paths are also obtained, namely between electrodes a, b, c of the upper set of electrodes and d, e, f of the lower set of electrodes.
In der Ausführungsform nach Fig. 3 und q. sind die Elektroden des oberen Satzes, wie ersichtlich, an die gleiche Phase wie die eine oder die andere von den nächstliegenden Elektroden -des unteren Satzes angeschlossen. Eine noch bessere Ausnutzung der Elektroden und Deckung des ganzen Feldes, das die Strombahnen durchtreten sollen, erhält man dadurch, daß gemäß Fig. S und 6 jede Elektrode des einen Satzes an die gleiche Phase wie die diametral gegenüberliegende Elektrode des anderen Satzes angeschlossen wird.In the embodiment of Fig. 3 and q. are the electrodes of the The upper sentence, as can be seen, in the same phase as one or the other from the closest electrodes -of the lower set. One more Better utilization of the electrodes and coverage of the entire field that the current paths are to pass through, is obtained in that, according to FIGS. S and 6, each electrode of the a set to the same phase as the diametrically opposite electrode of the other set is connected.
Wie aus den Figuren hervorgeht, erzielt man in dieser Weise, daß von jeder einzelnen Elektrode vier Strombahnen ausgehen.As can be seen from the figures, one achieves in this way that of four current paths emanate from each individual electrode.
Bei der Anwendung dieses Systems wird man, wenn die Elektrodenspitze in einer Flucht mit der Innenfläche des zylindrischen Ofens gedacht wird, den Abstand zwischen den Ebenen der beiden Elektrodensätze gleich dem Schachtdurchmesser dividiert durch 1/2 festlegen müssen.When using this system you will when the electrode tip in alignment with the inner surface of the cylindrical furnace is thought to be the distance divided equal to the shaft diameter between the levels of the two sets of electrodes must specify by 1/2.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO889487X | 1943-03-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE889487C true DE889487C (en) | 1953-09-10 |
Family
ID=19907569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEN895D Expired DE889487C (en) | 1943-03-15 | 1944-11-11 | Three-phase electrode system for electric ovens |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE889487C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE970883C (en) * | 1954-05-01 | 1958-11-06 | Dr Techn Josef Ratzke | Switching arrangement for resistance heating, glowing and butt welding of two workpieces with multi-phase alternating current under equal loading of all mains phases |
DE1119429B (en) * | 1958-02-08 | 1961-12-14 | Demag Elektrometallurgie Gmbh | Electrode circuit for large electric ovens |
-
1944
- 1944-11-11 DE DEN895D patent/DE889487C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE970883C (en) * | 1954-05-01 | 1958-11-06 | Dr Techn Josef Ratzke | Switching arrangement for resistance heating, glowing and butt welding of two workpieces with multi-phase alternating current under equal loading of all mains phases |
DE1119429B (en) * | 1958-02-08 | 1961-12-14 | Demag Elektrometallurgie Gmbh | Electrode circuit for large electric ovens |
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