The development of fixed top shielding for experimental fast reactor was carried out,including structural design,packaging design,welding process,and on-site installation.Serpentine concrete with a cumulative thickness of 650 mm was utilized for shielding against neutron and high-temperature thermal radiation.A mineral slag wool insulating layer with thickness of 145 mm was incorporated to enhance thermal insulation.Addressing the modular structure of fixed top shielding,measures such as anti-deformation method and auxiliary cross beam were employed to mitigate effects from factors such as gravity load,installation load,and welding deformation.After on-site assembly,the maximum central deflection is approximately 8 mm,meeting the shielding requirement of experimental fast reactor in China.
Experimental Fast ReactorFixed ShieldingDesignInstallation
万方数据
维普
