Nuclear reactor fuel assembly-control rod organization
阅读：139发布：2022-08-27
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1. A FUEL ASSEMBLY FOR USE IN AN UPRIGHT POSITION IN THE CORE OF A NUCLEAR REACTOR EMPLOYING A LIQUID COOLANT COMPRISING A PLURALITY OF UPRIGHT TUBULAR MEMBERS IN FIXED UNIFORM SPACED RELATION, A MAJORITY OF SAID MEMBERS CONTAINING A NUCLEAR FUEL, SOME OF SAID MEMBERS BEING HOLLOW AND OPEN AT THEIR UPPER ENDS, CONTROL RODS CONTAINING A NEUTRON POISON MATERIAL TELESCOPED WITHIN SAID HOLLOW MEMBERS AND CONNECTED AT THEIR UPPER ENDS TO A COMMON HEADER MEMBER WHEREBY THEY MAY BE SIMULTANEOUSLY MOVED LONGTIUDINALLY OF THE HOLLOW MEMBERS BETWEEN AN UPPER POSITION WHERE ONLY THE TIPS OF THE CONTROL RODS EXTEND WITHIN THE HOLLOW MEMBERS AND A LOWER POSITION WHERE THE RODS EXTEND INTO AND GENERALLY THE FULL LENGTH OF THE HOLLOW MEMBERS, SAID HOLLOW MEMBERS HAVING OPENINGS IN THE LOWER REGION THEREOF FOR THE PASSAGE OF LIQUID THERETHROUGH WITH AT LEAST SOME OF THESE OPENINGS BEING ABOVE THE LOWER END OF SAID POISON MEMBERS WHEN SAID MEMBERS OCCUPY THEIR LOWERMOST JPOSITION.
3. IN A NUCLEAR REACTOR HAVING A CORE WITH A COOLANTMODERATOR BEING PASSED THROUGH THE CORE AND OVER THE FUEL ELEMENTS OF THE CORE AND WITH THE CORE BEING COMPRISED OF A NUMBER OF SEPARATE FUEL ASSEMBLIES, THE IMPROVEMENT WHEREIN AT LEAST SOME OF SAID ASSEMBLIES ARE COMPRISED OF UPRIGHT TUBULAR MEMBERS IN FIXED SPACED RELATION, SOME OF THESE TUBULAR MEMBERS IN A PREDETERMINED TRANSVERSE PATTERN BEING HOLLOW AND OPEN AT THEIR UPPER ENDS, A CONTROL ROD RECEIVED WITHIN EACH OF SAID HOLLOW MEMBERS IN A MANNER PERMITTING RELATIVE LONGITUDINAL MOVEMENT THEREWITHIN WITH THE UPPER END OF THE RODS EXTENDING FROM THE UPPER END OF THE TUBULAR MEMBERS AND BEING SECURED TO A COMMON HEADER, SAID HOLLOW TUBULAR MEMBERS BEING OF A MATERIAL THAT CONTAINS A BURNABLE POISON, AND THE REMAINING TUBULAR MEMBERS OF THE ASSEMBLY CONTAINING A NUCLEAR FUEL.
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