VAPOR COOLING METHOD, VAPOR COOLING APPARATUS, AND FLOW PASSAGE STRUCTURE, AND APPLICATION THEREOF

摘要

In the process of boil cooling, boil cooling by nucleate boiling in a temperature area wherein transition boiling may occur is enabled to a larger cooling area.;A boil cooling method of the present invention forms, with a surface of an object to be cooled ob or a surface of a heating member in close contact with the surface of the object to be cooled made to serve as a cooling surface, a main flow channel 10A and a sub-flow channel 10B for a cooling liquid from the side of the cooling surface in the above-described order, arranges a plurality of nozzles NZ penetrating a partition wall 10C separating the sub-flow channel 10B and the main flow channel 10A and protruding into the main flow channel 10A in a flow channel direction of the main flow channel, causes tip end parts of individual nozzles NZ to be in the vicinity of or in contact with the cooling surface, causes a cooling liquid 21 to circulate to the main flow channel 10A and the sub-flow channel 10B, and cools the cooling surface by boiling of the cooling liquid flowing through the main flow channel 10A, and at the same time, supplies the cooling liquid at the side of the sub-flow channel 10B from the side of the sub-flow channel 10B through each of the nozzles NZ to the vicinity of the cooling surface, and cools the cooling liquid in the main flow channel.