| 摘要 |
PURPOSE:To obtain mechanical strength and heat radiating area of an oil- immersed tank for a trasformer or the like by arranging the base of a heat radiating plate formed of fin-shaped extensions by bending a thin sheet-shaped steel plate adjacently faced with the end thereof. CONSTITUTION:A wavy heat radiating plate 10A forming a side wall of long side of a tank is continuously formed of fin-shaped extensions 11a at every predetermined interval by bending a sheet-shaped steel plate 11 in wavy shape, and flat plates 12, 13 of different size are provided at both ends. Further, the extensions 11a are connected to each other with reinforcing pieces 14 secured to the ends. On the other hand, a wavy heat radiating plate 10B forming a side wall of short side of the tank is formed by connecting a number of extensions 11a by reinforcing member 14, and flat plates 15 are provided at both ends. The bases or ends of the extensions 11a of four heat radiating plates 10A are arranged adjacently to be faced with each other at the prescribed interval as long side wall, the plate 10B is arranged at short side wall, the bonding sections 10, 17 are secured oiltightly to form tank side walls. |
