SPENT FUEL ASSEMBLY UNCOVERING AND RECYCLING SYSTEM AND METHOD

摘要

The present invention provides a spent fuel assembly uncovering and recycling system and method, and a spent fuel storage tank (1) suitable for storing a spent fuel assembly. The spent fuel assembly uncovering and recycling system comprises: a helium leakage and cladding damage detection assembly (100) connected to the spent fuel storage tank (1) and used for controllably detecting a weld joint sealing condition of a cover plate assembly of the spent fuel storage tank (1) and a cladding damage condition of the spent fuel assembly in the spent fuel storage tank (1), respectively; a water filling and exhausting assembly (200) connected to the spent fuel storage tank (1) and used for controllably injecting water into the spent fuel assembly for cooling and exhausting gas in the spent fuel storage tank (1); and a cutting assembly (300) used for controllably cutting a cover plate assembly weld joint of the spent fuel storage tank (1) so as to recycle the spent fuel assembly in the spent fuel storage tank (1). The present invention can implement safe recycling of the spent fuel assembly in the welded sealed storage tank.