Circulation cooling system

The utility model discloses a circulation cooling system which is divided into three parts, an intercooling cycle device, a plate heat exchanger and an external cooling cycle device, wherein the intercooling cycle device is used for circulation cooling of a radiating device; the plate heat exchanger is used for heat exchange between the external cooling water from the external cooling cycle device and the intercooling water from the intercooling cycle device; the external cooling cycle device is used for cooling the external cooling water; and at the same time, the circulation cooling system can respectively control an external cooling main circulation pump, a thermal storage tank, a water and wind plate-fin heat exchanger, a thermal storage air cooler, a first valve and a second valve in the external cooling cycle device, thus effectively saving the water and electric consumption when the radiating device is cooled.