Nuclear power station diesel generator cooling system and diesel engine set

The utility model belongs to the technical field of nuclear power station emergency generators, and particularly relates to a nuclear power station diesel generator cooling system and a diesel engine set. In the nuclear power station diesel generator cooling system, a cooling water outlet of a diesel engine is communicated with a cooling water inlet of the diesel engine through a heat exchanger and a monitor in sequence, the heat exchanger and the monitor form a cooling loop, and the monitor is used for detecting components of cooling liquid in the cooling loop; the water treatment tank communicates with an inlet of the expansion tank through the power pump, an outlet of the expansion tank communicates with a cooling water inlet of the diesel engine, and the water treatment tank, the power pump and the expansion tank form a water supplementing loop. The dispensing device is communicated with the water treatment tank and is used for adding cooling components into the water treatment tank. The nuclear power sta