| 摘要 |
PURPOSE:To obtain a small-sized natural circulation type boiling cooler capable of controlling the cooling temperature of a heat generator by providing a valve in the cooler and allowing coolant to be adjusted in the pressure. CONSTITUTION:When the heat of a heat generator 3 is large, air bubbles 2a is separated by a separator 5 into vapor and liquid phases. The flow of the liquid phase is guided to a tube 103 through a tube 7, the flow of the vapor phase are guide to a tube 104 through a valve 6, cooled liquefied and returned to the tube 103. In this case, the pressure in the separator 5 varies by the adjustment of the valve 6, and when the pressure increases, the boiling point rises, and when the pressure decreases, the boiling point falls. Thus, the temperature of the generator 3 varies to high or low values. The separator 5 suppresses the variation in the large pressure of the vapor and liquid phase flows due to breakage of air bubbles 2a. According to this structure, since only the vapor phase flow is fed to a heat sink section 105, the section 105 can be reduced in size, and the cooler in which the cooling temperature of the generator can be controlled in small size can be obtained. |
