Earthquake-proof mounting support for control-rod drives of nuclear reactors

Patent · Tue Jul 14 04:00:00 EDT 1981

OSTI ID:5976366

Kohler, G; Schramm, K; Uhlmann, G

Earthquake-proof mounting support is described for control rod drives of nuclear reactors which have a generally cylindrical reactor pressure vessel formed with a convex wall at least at one end thereof and including control rods with control rod drive shafts coupled thereto and mounted so as to be movable in axial direction thereof within tubular drive housings extending pressure-tightly through the end convex wall and sealed against the outside, the tubular drive housings comprising tube member forming respective feed-through passageways for the control rod drive shafts, the tube members having respective portions thereof extending with respectively varying lengths outside and beyond the convex wall to a given horizontal plane, and a support grid formed of a plurality of grid bars articulatingly connecting the tube members at respective free ends thereof outside the convex wall, respectively, to one another.

• Assignee: Kraftwerk Union Ag (Germany, Federal Republic Of)
• Patent Number(s): US 4278498
• OSTI ID: 5976366
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220400* -- Nuclear Reactor Technology-- Control Systems
CONTROL ROD DRIVES
DESIGN
EARTHQUAKES
ENGINEERING
HYDROGEN COMPOUNDS
MACHINE PARTS
MECHANICAL STRUCTURES
OXYGEN COMPOUNDS
REACTOR COMPONENTS
SAFETY ENGINEERING
SEISMIC EFFECTS
SEISMIC EVENTS
SHAFTS
SUPPORTS
WATER