Cooling device of circulating water system

The utility model belongs to the technical field of cooling devices, and discloses a circulating water system cooling device which comprises a shell body, a groove is formed in the shell body, a pressurizing water pump is installed in the groove, and the output end and the input end of the pressurizing water pump are both connected with water inlet pipes. According to the cooling device, the water inlet pipe, the spray head, the fan and the like are arranged, when cooling water is cooled, water in the water pipe is pumped into the water inlet pipe through the pressurizing water pump and pressurized, the water is sprayed into the cooling chamber through the spray head, and the cooling water is cooled through the spray head. And the fan drives external air to accelerate to enter the cooling chamber through the heat dissipation holes, to be in contact with the sprayed cooling water, take away heat in the cooling water and discharge the heat out of the cooling chamber through the exhaust holes, so that the proble