Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Nuclear reactor I










Image Number 13 for United States Patent #4050986.

A nuclear reactor, particularly a liquid-metal breeder reactor whose upper internals include provision for channeling the liquid metal flowing from the core-component assemblies to the outlet plenum in vertical paths in direction generally along the direction of the respective assemblies. The metal is channeled by chimneys, each secured to, and extending from, a grid through whose openings the metal emitted by a plurality of core-component assemblies encompassed by the grid flows. To reduce the stresses resulting from structural interaction, or the transmissive of thermal strains due to large temperature differences in the liquid metal emitted from neighboring core-component assemblies, throughout the chimneys and the other components of the upper internals, the grids and the chimneys are supported from the heat plate and the core barrel by support columns (double portal support) which are secured to the head plate at the top and to a member, which supports the grids and is keyed to the core barrel, at the bottom.In addition to being restrained from lateral flow by the chimneys, the liquid metal is also restrained from flowing laterally by a peripheral seal around the top of the core. This seal limits the flow rate of liquid metal, which may be sharply cooled during a scram, to the outlet nozzles.The chimneys and the grids are formed of a highly-refractory, high corrosion-resistant nickel-chromium-iron alloy which can withstand the stresses produced by temperature differences in the liquid metal. The chimneys are supported by pairs of plates, each pair held together by hollow stubs coaxial with, and encircling, the chimneys. The plates and stubs are a welded structure but, in the interest of economy, are composed of stainless steel which is not weld compatible with the refractory metal. The chimneys and stubs are secured together by shells of another nickel-chromium-iron alloy which is weld compatible with, and is welded to, the stubs and has about the same coefficient of expansion as the highly-refractory, high corrosion-resistant alloy.








 
 
  Recently Added Patents
Methods and apparatus for dynamic identification (ID) assignment in wireless networks
Multi currency exchanges between participants
Discharge circuit and method
Case for camera
Computer system and volume migration control method using the same
Bandana
Device and implantation system for electrical stimulation of biological systems
  Randomly Featured Patents
Connector lock assembly
Secondary containment system
Transformer variable power
Fluoridated monomers based on 9-phenyl-9-perfluoroalkylxanthene
Process for the renewal--during communication--of the traffic parameters of an ATM network
Method of forming contact openings having concavo-concave shape
Decorative panel
Destruction of nitrophenols
Self-lubricating cam follower
Methods and mixers for the continuous addition of glue to mixtures consisting of wood chips, wood fibres or the like