DE289778C - - Google Patents
Info
- Publication number
- DE289778C DE289778C DENDAT289778D DE289778DA DE289778C DE 289778 C DE289778 C DE 289778C DE NDAT289778 D DENDAT289778 D DE NDAT289778D DE 289778D A DE289778D A DE 289778DA DE 289778 C DE289778 C DE 289778C
- Authority
- DE
- Germany
- Prior art keywords
- flat sides
- waves
- curved
- shafts
- polygon
- 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.)
- Active
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 230000035882 stress Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
- Transformer Cooling (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Für Transformatorenölkessel werden vielfach zum Zwecke besserer Wärmeableitung Kessel mit gewellten Wänden verwendet. Bei der jetzigen Ausführung dieser Kessel aus WellenFor transformer oil boilers, boilers are often used for the purpose of better heat dissipation used with corrugated walls. In the current version, this boiler is made of waves
mit geraden Flachseiten besteht nun der Übelstand, daß sich die Flachseiten der Wellen infolge des Öldruckes stark durchbiegen und den Kanal für den Luftdurchzug stark verringern. Zur Verkleinerung dieser Durchbiegung ist man gezwungen, die Wellen aus starkem Blech herzustellen (z. B. bei 3 m Kesselhöhe und 300 mm Wellenhöhe etwa 2,5 mm), was zu teuren und schweren Kästen führt.with straight flat sides there is now the disadvantage that the flat sides of the waves Due to the oil pressure, bend sharply and greatly reduce the duct for the air passage. To reduce this deflection one is forced to make the shafts from thick sheet metal (e.g. at 3 m Shell height and 300 mm wave height about 2.5 mm), resulting in expensive and heavy boxes leads.
Werden jedoch die Flachseiten der Wellen bogenförmig gekrümmt, wobei sie entweder einfach gekrümmt, wie aus Fig. 1 ersichtlich, oder mehrfach gekrümmt, wie in Fig. 2 dargestellt, sein können, so ist es möglich, die so versteiften Wellen bei beliebig hohem Kasten aus ι mm starken und noch schwächeren Blechen herzustellen. Statt nach Bogenform kann die Krümmung auch nach einem Vieleck (Fig. 3) gebildet sein. Es treten bei innerer Beanspruchung nur Zug- bzw. Druckspannungen in den Flachseiten der Wellen auf, so daß keinerlei nennenswerte Durchbiegungen eintreten können.However, if the flat sides of the waves are curved in an arc shape, they either single curved, as shown in Fig. 1, or multiple curved, as shown in Fig. 2, can be, so it is possible to stiffen the shafts with any height box made from ι mm thick and even weaker sheets. Instead of arching the curvature can also be formed according to a polygon (Fig. 3). It occurs at inner Stress only causes tensile or compressive stresses in the flat sides of the shafts, so that no significant deflections can occur.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE289778C true DE289778C (en) |
Family
ID=544783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT289778D Active DE289778C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE289778C (en) |
-
0
- DE DENDAT289778D patent/DE289778C/de active Active
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