Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Operating element charging and withdrawal in a gas cooled high temperature reactor










Image Number 4 for United States Patent #4654189.

A medium power, high temperature pebble bed nuclear reactor, which includes a means for introduction and withdrawal of operating elements. The installation is provided in such a way that it can be more economically built and operated. The installation includes several input stations above a prestressed concrete pressure vessel, and charging hatch blocks positioned on top of the prestressed concrete pressure vessel. The blocks include selectors through which the pebble-shaped operating elements, after traversing helical and meandering charging conduits, reach into the reactor core. The selectors and charging conduits are installed within armored ducts which penetrate the prestressed concrete pressure vessel. Similar armored ducts are provided for exit ducts for withdrawal of pebbles from the core, and a first common exit hatch block is connected to the exit ducts. The block is arranged within foundation walls which support the prestressed concrete pressure vessel. A second exit hatch block, which is connected to the first exit hatch block by a shielded exit hatch channel, is provided in a reactor protection building. The withdrawal station is arranged in a reactor auxiliary building and connected to the shielded exit hatch channel.








 
 
  Recently Added Patents
(4939
Lighting fixture
Extensible, filtered lists for mobile device user interface
Method of operating an election ballot printing system
Communication device
Isothermal amplification of DNA
Method for using directing cells for specific stem/progenitor cell activation and differentiation
  Randomly Featured Patents
Semiconductor memory device
Quick coupler mount for front of farm tractor
Process for producing tungsten heavy alloy sheet by a loose fill hydrometallurgical process
Specialized military and police combination tool
Method of using an orthopaedic fixation device
Fungicidal compositions
Railless walkway for the visually handicapped
Thermoplastic polyetherimide ester polymers exhibiting improved flexular properties
Polycrystalline silicon substrate having a thermally-treated surface, and process of making the same
Gem difluorinated C-glycopeptides, their preparation and their use for the preservation of biological materials and/or in cryosugery