Cooling Apparatus for Fluid

A cooling apparatus for a fluid, comprising:

• an endoergic-side heat exchanger that has a fluid passage for passing the fluid to be cooled and stores a cooling medium for cooling the fluid through heat exchange with the fluid in the fluid passage;
• an exoergic-side heat exchanger that has at least two cooling medium passages, one ends of the at least two cooling medium passages being communicated with the endoergic-side heat exchanger and the other ends of the at least two cooling medium passages being communicated with each other;
• and
• cooling means that cools the cooling medium passing through the exoergic-side heat exchanger by heat exchange with the cooling medium,
• wherein the cooling apparatus is configured so as to recirculate the cooling medium between the endoergic-side heat exchanger and the exoergic-side heat exchanger, and
• the cooling medium passages are capable of passing steam vaporized from the cooling medium in the endoergic-side heat exchanger by absorbing heat of the fluid, and the cooling medium that becomes liquid in the exoergic-side heat exchanger after heat is absorbed with the cooling means.