| 摘要 |
FIELD: nuclear power engineering. ^ SUBSTANCE: the invention may be used in nuclear reactors, in particular in the high-power channel nuclear reactors. The proposed assembly of these reactors is a framework with fuel elements, located in it. The framework has a central tube with the end grates and multi-tier system of spacers, fixed on the tube. This system is fabricated in the form of bent closed ships, skirting the fuel elements. The ships have the spacing bosses and are fastened between themselves. Besides, the fuel elements of internal and external rows contact with the ships, skirting them, in the places more than two. The external and internal rims, fastened with the ships, skirting the fuel elements, are the part of the multi-tier system of spacers. The ships and rims may be fastened between themselves with a shelf and may be fabricated from one sheet. ^ EFFECT: increased reliability of the fuel assemblies. ^ 12 cl 28 dwg |
