FIELD: nuclear power.
SUBSTANCE: invention relates to nuclear power, and more specifically to fuel assemblies for nuclear reactors with the predominant use of a liquid metal coolant as a primary coolant. The nuclear reactor fuel assembly attachment assembly contains a fuel assembly shank ending with a collet tip, the petals of which are provided with external beads with a rounded end and are fixed in the annular groove of the landing hole of the lower core plate of the core. On the inner surfaces of the beads of the petals of the collet tip of the fuel assembly, an axisymmetric groove is made, in which at least one elastic element is located.
EFFECT: invention provides reliable fixation of the fuel assembly in the base plate under conditions of prolonged exposure to liquid metal coolant.
10 cl, 3 dwg
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| NUCLEAR REACTOR FUEL ASSEMBLY | 1997 |
|
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| NUCLEAR REACTOR FUEL ASSEMBLY | 2002 |
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