LOCA water loss test equipment

The utility model belongs to the technical field of nuclear reactors, and particularly relates to LOCA water loss test equipment. The device comprises a steam device, a vacuumizing device, a spraying device, a heating device provided with a first inner hole and a pressure tank provided with an inner space, the heating device, the spraying device and the to-be-tested cladding are all installed in the internal space, and the cladding is located in the first inner hole; the heating device is used for heating the to-be-tested cladding, and the spraying device is used for quenching the heated to-be-tested cladding; the steam device is used for injecting steam into the internal space; the vacuumizing device is used for vacuumizing the second inner hole to be in a vacuum state. According to the utility model, the spraying device sprays liquid to the to-be-tested cladding which is subjected to bulging blasting from the periphery, so that the to-be-tested cladding is rapidly cooled, the LOCA loss of water accident of