| 摘要 |
PURPOSE:To separate a blowing-up flow and a condensed working fluid from each other and contrive to improve heat transfer efficiency, by a construction wherein a liquid-collecting member for introducing a condensed liquid into an inner cylinder is provided at a heat-releasing part of a thermosiphon-type container, a gap between the inner cylinder and an outer cylinder is made to be an upward-flow passage, and the inner cylinder is made to be a return passage. CONSTITUTION:When the heat input quantity of a high heat souce D reaches a specific value, vapor bubbles are generated on the inside surface of the outer cylinder 2. Since the gap C between the cylinder 2 and the inner cylinder 3 is set to be a predetermined width, even when the quantity of the vapor bubbles generated is increased, the bubbles does not enter into the cylinder 3 through a lower end part 3a, and a gas-liquid two-phase flow passes upward through the upward-flow passage 6 between the outer cylinder 2 and the inner cylinder 3. The two- phase flow reaching an upper end part 3b collides against an outside peripheral part of the lower surface of the liquid-collecting member 4, and flows into the cylinder 3, whereby the two- phase flow passing upward through the passage 6 and a unidirectional circulating flow of the working fluid passing downward through the return passage 7 in the cylinder 3 are generated. Accordingly, the film coefficient of heat transfer of the heat comming in by heat-transfer from the wall surfaces of the outer cylinder 2 at a heat-absorbing part 1A becomes high, and heat transfer efficiency is increased. |
