Resources Contact Us Home
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
Composition and method for modulating hydrogen ion physiology
Apparatus, system, and method for redundant write caching
Method for non-volatile memory with background data latch caching during read operations
Cell separation apparatus
Communication system for mobile users using adaptive antenna with auxiliary elements
Method for setting a position of a carrier element in a particle beam device
Wavefront aberration measuring method and device therefor
  Randomly Featured Patents
Automatic protective circuit system for emergency lights
Substituted amide beta secretase inhibitors
Method of forming a film in recess by vapor phase growth
Scanning and storage of electrophoretic records
System, method and apparatus for use in monitoring or controlling internet access
Thermoplastic molding compositions based on polyphenylene ethers
Developer for electrostatic photography and process for preparation thereof
Bong with full-bore removable plug standard
Bar code demodulating method
Golf shoe spike