Cold water supply system

Claim 1

A cold water supplying system in which return water from a load cooled to a predetermined low temperature by a refrigeration system of a variable refrigerating capacity is stored in a cold water supply tank, and in which the flow rate of the return water for passing through said refrigerating system is regulated in accordance with a signal from a level detector disposed in the cold water supply tank, thereby maintaining a predetermined amount of cold water at a predetermined temperature within said cold water supply tank, comprising an agitating tank disposed within said cold water supply tank for receiving the cold water from said refrigerating system, a bypass piping means for directing a calculated amount of the return cold water into said agitator tank, a temperature measuring sensor for sensing the temperature of the return cold water, a refrigerating system outlet temperature detecting sensor for measuring the water temperature discharged from said refrigerating system, and a regulating means, which is responsive to said return cold water and refrigerating system discharge temperature sensors, for automatically regulating the cold water temperature supplied after being mixed from said refrigerating system and said bypass piping into said agitating tank to become said predetermined temperature; wherein said regulating means regulates said refrigeration system capacity and wherein said regulating means regulates said calculated amount of return cold water.