To provide a cooling system that adopts a water and refrigerant chiller system which directly cools water to be cooled without causing any problem in the environmental and safety aspects and is constituted to efficiently and effectively cool the water.
This cooling system is composed of a cooling tower 30 including a cooling unit 33 through which the water to be cooled used for cooling a load is made to flow, and a cold air means which cools the unit 33 and a water cooling means 40 provided with a first hermetically sealed vessel EV; a steam compressor P1 which sucks up the steam of the water to be cooled supplied into the vessel EV; and a second hermetically sealed vessel CO which condenses the sucked-up steam. The water cooling means 40 vaporizes the water to be cooled in the first vessel EV and cools the remaining water to be cooled by utilizing the latent heat of the vaporization. The water to be cooled is selectively cooled by means of the cooling unit 33 of the cooling tower 30 and the first hermetically sealed vessel EV of the water cooling means 40.
TANAKA TOSHIO
OTSUKI KENJI
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