Reactor internals loose parts strainer

Patent · Tue Dec 29 04:00:00 EST 1987

OSTI ID:5317733

Gasparro, M R; Tome, R E

This patent describes an upright cylindrical nuclear reactor pressure vessel having a hemispherical lower head section with a curved inner surface and defining an annular flange extending radially inward near its upper end, reactor internals suspended within the pressure vessel from the flange. The internals extending downward into the hemispherical lower head section but with the lower end thereof terminating short of contacting the curved inner surface hemispherical lower head section to form a radially extending, annular gap therebetween which varies in size in response to variations in the temperature of reactor coolant circulated through the pressure vessel and internals due to a difference in the coefficients of thermal expansion thereof, and strainer means comprising an annular member with apertures therethrough smaller than the smallest size of the gap secured to the lower end of the reactor internals and extending radially outward therefrom.

• Assignee: Westinghouse Electric Corp., Pittsburgh, PA
• Patent Number(s): US 4716012
• OSTI ID: 5317733
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220200* -- Nuclear Reactor Technology-- Components & Accessories
CONTAINERS
COOLANTS
COOLING SYSTEMS
DESIGN
ENERGY SYSTEMS
FLANGES
FOULING
IMPURITIES
LOOSE PARTS MONITORING
MONITORING
OPERATION
PRESSURE VESSELS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTOR OPERATION
REMOVAL
SEPARATION EQUIPMENT