Closed circulation type fresh water cooling system for high-turbidity sea area ocean platform main machine

A closed-loop circulation type fresh water cooling system for a high-turbidity sea area ocean platform main machine comprises a fresh water cooling circulation cabin, a main cooling circulation pump, a standby cooling circulation pump, a water cooling heat exchanger, an ocean platform main generator set, a cooling pipeline system and a water mist nozzle. The cooling medium of the system is fresh water, seawater and air are replaced, corrosion to a cooling pipeline system and a water-cooled heat exchanger is reduced, and noise vibration is reduced. The cooling system is in a closed-loop circulation type, and infinite cyclic utilization of fresh water can be achieved. The fresh water cooling circulation cabin is of an open type and has the functions of cooling water collection and storage, cooling system expansion compensation and sufficient heat dissipation of circulating water. And a main cooling circulating pump and a standby cooling circulating pump are arranged, so that the reliability of the system is ens