Reactor shroud joint

Patent · Thu Jan 01 04:00:00 EST 1998

OSTI ID:871463

Ballas, Gary J ^[1]; Fife, Alex Blair ^[1]; Ganz, Israel ^[1]

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1. San Jose, CA

A shroud for a nuclear reactor is described. In one embodiment, the shroud includes first and second shroud sections, and each shroud section includes a substantially cylindrical main body having a first end and a second end. With respect to each shroud section, a flange is located at the main body first end, and the flange has a plurality of bolt openings therein and a plurality of scalloped regions. The first shroud section is welded to the second shroud section, and at least some of the bolt openings in the first shroud section flange align with respective bolt openings in the second shroud section flange. In the event that the onset of inter-granular stress corrosion cracking is ever detected in the weld between the shroud section, bolts are inserted through bolt openings in the first shroud section flange and through aligned bolt openings the second shroud section flange. Each bolt, in one embodiment, has a shank section and first and second threaded end sections. Nuts are threadedly engaged to the threaded end sections and tightened against the respective flanges.

• Research Organization: ADVANCED REACTOR CORP
• DOE Contract Number: FC02-92NE34267
• Assignee: General Electric Company (Schenectady, NY)
• Patent Number(s): US 5737378
• OSTI ID: 871463
• Country of Publication: United States
• Language: English

Related Subjects

/376/
align
aligned
aligned bolt
bolt
bolts
corrosion
corrosion cracking
cracking
cylindrical
described
detected
embodiment
engaged
event
flange
flanges
inserted
inter-granular
joint
located
main
nuclear
nuclear reactor
nuts
onset
openings
openings therein
plurality
reactor
regions
respect
respective
scalloped
section
sections
shank
shroud
shroud section
stress
stress corrosion
substantially
substantially cylindrical
therein
threaded
threadedly
tightened
weld
welded