CONECTOR HERMETICO ADAPTADO PARA SER UTILIZADO CON UN REAC- TOR NUCLEAR

摘要

Apparatus comprising a seal connector ist disclosed for sealingly connecting flow channels in the core support plate with flow channels in fuel assemblies for use in a spectral shift pressurized water nuclear reactor in which spectral shift is obtained by displacing a portion of the light water in the core with deuterium oxide or a combination of deuterium oxide and light water or various gases such as helium during the initial state of reactor operation to harden the nuclear spectrum and thereby reduce excess reactivity and increase the production of fissile materials. The seal connectors provide a sealed flow channel for introducing the deuterium oxide to the fuel assemblies during the early stages of reactor operation and for reintroducing the light water into the fuel assemblies during the later stages of reactor operation.