| 摘要 |
PURPOSE:To enhance cooling effect in a box body and to facilitate maintenance by laying the heat receiving part of a heat pipe along the inner face of an outer wall, locating the heat radiating part of the heat pipe on the outside at the upper part of a box body, and arranging a fan on one side of the heat radiating part thereby cooling the heat radiating part. CONSTITUTION:Heat receiving parts 4a welded with heat pipes are arranged at the inside of right and left side walls 2a, 2b of a box body 2 fixed airtightly with a ceiling board 3, and the heat receiving part 4a at the ceiling part is coupled with the upper end part of the heat pipe. Heat radiating parts 4b for condensation of the heat pipe are contained on the right and left in a cover 5 at the upper face of the ceiling board 3. Insulating gas is cooled by a corrugated stainless steel board at the heat receiving part 4a1 arranged at the lower part of the ceiling board 3 and corrugated boards at the right and left heat receiving parts 4a, and the gas descends close to the floor face of the box body 2 where it is warmed by the internal electric machinery and returned through convection. By such arrangement, interior of the box body 2 can be utilized effectively. |
