Nozzle seal. [Patent: PWR]

Patent · Tue Jul 11 04:00:00 EDT 1978

OSTI ID:6053668

Groff, R D; Vatovec, R J

In an illustrative embodiment of the invention, a nuclear reactor pressure vessel, having an internal hoop from which the heated coolant emerges from the reactor core and passes through to the reactor outlet nozzles, is provided with annular sealing members operatively disposed between the outlet nozzle and the hoop and partly within a retaining annulus formed in the hoop. The sealing members are biased against the pressure vessel and the hoop and one of the sealing members is provided with a piston type pressure ring sealing member which effectively closes the path between the inlet and outlet coolants in the region about the outlet nozzle establishing a leak-proof condition. Furthermore, the flexible responsiveness of the seal assures that the seal will not structurally couple the hoop to the pressure vessel.

• Assignee: Dept. of Energy
• Patent Number(s): US 4100019
• OSTI ID: 6053668
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210200* -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
CONTAINERS
DESIGN
NOZZLES
PRESSURE VESSELS
PWR TYPE REACTORS
REACTORS
SEALS
WATER COOLED REACTORS
WATER MODERATED REACTORS