CHARGING TUBE SYSTEM FOR NUCLEAR REACTORS

Patent · Sat Oct 01 04:00:00 EDT 1960

OSTI ID:4820839

The charging tube system is used for charging a group of vertical channels through a single charging hole in the top of the reactor pressure vessel. The charging hole nns provided with a vertical tubular casing which accommodates two concentric tubes that can slide one inside the other in such a manner that each may ireely rotate with respect to the other, but both axially movable as a unit. The lower end of the inner tube protrudes from the outer tabe and is covered by a tubular piece that is screwed into the end of the outer tube and is fixed to the inner tube in such a way that rotation with respect thereto is not possible but axial sliding is; as a consequence, any relative rotation between the tubes causes an axnnal displacement of the tubular piece. The inner tube is provided at its lower end with an extension with semi-annular cross section. At the lower end of this extension a lower charging tube is jointed; this is provided at the upper end with a similar extension to that of the said inner tuhe and has a lower extremity that can be brought in front of each of the exits of the reactor channels of the group. At the lower end of the tubular piece, a linking rod is jointed that has a semi-annular cross section also and is jointed at its lower end to the said lower charging tube in such a way that any axial movement of the tubular piece causes a rotation of the lower tube about its joint. The cross section of the linking rod completes the cross sections of the said two extensions to a whole tube when the lower tube is in a vertical position. (NPO)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-16-006186
• OSTI ID: 4820839
• Report Number(s): FR 1232353
• Country of Publication: France
• Language: English

Related Subjects

CONFIGURATION
FUEL ELEMENTS
JOINTS
MACHINE PARTS
MAINTENANCE
MECHANICAL STRUCTURES
PATENT
PERFORMANCE
PLANNING
POWER PLANTS
PRESSURE VESSELS
REACTOR CORE
REACTOR FUELING
REACTOR TECHNOLOGY
REMOTE CONTROL
REMOTE HANDLING
RODS
ROTATION
SERVOMECHANISMS
STORAGE
TRANSPORT
TUBES