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Reactor fuel assembly

阅读:904发布:2023-01-08

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1. A FUEL ASSEMBLY FOR A PRESSURIZED WATER NUCLEAR REACTOR TO BE SUSPENDED WITHIN A PROCESS TUBE IN THE ACTIVE PORTION THEREOF FROM A PERFORATED TUBE COMPRISING A SOLID CYLINDRICAL ELEMENT CONTAINING THERMAL NEUTRON FISSIONABLE MATERIAL, A FIRST TUBULAR ELEMENT CONTAINING THERMAL NEUTRON FISSIONABLE MATERIAL CONCENTRICALLY SURROUNDING AND SPACED FROM SAID SOLID ELEMENT, A SECOND TUBULAR ELEMENT CONTAINING THERMAL NEUTRON FISSIONABLE MATERIAL CONCENTRICALLY SURROUNDING AND SPACED FROM SAID FIRST TUBULAR ELEMENT, MEANS FOR RIGIDLY CONNECTING THE UPPER END OF SAID FIRST TUBULAR ELEMENT TO SAID PERFORATED TUBE, AND MEANS FOR RIGIDLY SUPPORTING SAID SOLID ELEMENT AND SAID SECOND TUBULAR ELEMENT AT THEIR LOWER ENDS TO THE LOWER END OF SAID FIRST TUBULAR ELEMENT WHEREBY SAID ELEMENTS ARE FREE TO AXIALLY EXPAND AT DIFFERENT RATES.
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