High Earthquake-Resistant Fuel Storage Rack System for Fuel Pools in Nuclear Plants, US 2018/0247720 A1, 2018 (Fuel Rack)

Primary Inventor: Krishna P. Singh
Contributing Inventor(s):
Date of Publication: 08/30/2018
Status: Published
Jurisdiction: US
Equipment Type: Fuel Rack
Docket Number: HOL-114
Publication Number: US 2018/0247720 A1
Application Number: 15/618,774
Patent Number(s):

Abstract: A seismic-resistant fuel storage system for a nuclear fuel pool includes a lined fuel pool and a fuel rack comprising tubular nuclear fuel storage cells attached to a common baseplate. Pedestals protrude downwardly from the baseplate supporting the rack on the pool base slab. Spaced embedment plates are fixedly anchored to the base slab to eliminate relative movement between the plates and pool liner. The embedment plates comprise upwardly open recessed receptacles each entrapping one of the rack pedestals therein. The receptacles are configured such that lateral movement of the fuel rack along the base slab in the event of a seismic event is constrained via engagement between receptacle walls and pedestals. Lateral seismic loads are not transferred to the pool liner. In some embodiments, the baseplates in the pool are coplanar and may be abutting engaged to mitigate rack movement during a seismic event.