A wet spent fuel storage system

The present invention relates to a nuclear power plant spent fuel storage areas, to a wet spent fuel storage system. Non-active way of dealing achieve long-term storage of spent fuel. Spent fuel storage grids placed at the bottom of the spent fuel storage pool, spent fuel storage pool filled with coolant, loading spent fuel assemblies sealed container is placed in spent fuel storage grid shelves, cooling tower provided in spent fuel storage pool portion of the heat pipe end cooling means provided in the air-cooling tower, the other end of the heat pipe cooling device is immersed in spent fuel storage pool cooling liquid. The present invention utilizes the decay heat generated by spent fuel driven separate cooling device, without external driving force, to achieve a natural coolant circulation spent fuel storage pool using passive way to achieve long-term storage of spent fuel, and the system has the advantages of reliable operation .