Method and apparatus for eliminating leakage spaces between the

Details Method and apparatus for eliminating leakage spaces between the Method and apparatus for eliminating leakage spaces between the

1984-10-22

1987-03-17

Behrend, Harvey E.

Induced nuclear reactions: processes, systems, and elements

Handling of fission reactor component structure within...

376249, G21C 1700

Patent

active

046506390

ABSTRACT:
The invention concerns a method and apparatus for eliminating leakage spaces between the partitions (1) surrounding the core of a pressurized water nuclear reactor, after it is brought into operation.
Operations are carried out under water, during shutdown of the reactor. The defective joins (12) between the partitions (1) are identified. For each join, the partitions (1) are pierced, the hole inside a partition (1) is screw-threaded, the swarf is recovered, a screw with diametrical expansion is introduced and screwed into the hole and the screw is expanded by displacement of a rod in the longitudinal direction of the screw. Moving location, the operations are repeated for each defective join (12). The apparatus comprises a case (25) containing a drum (36) bearing tools for boring (54-65), screw-threading, and screwing, a cleaning tube and a punch for locking the screw.
The invention is applicable to work on pressurized water nuclear reactors, after they have been brought into operation.

REFERENCES:
patent: 3143479 (1964-08-01), Hargo et al.
patent: 3356589 (1967-12-01), Grell et al.
patent: 3720581 (1973-03-01), Kaser
patent: 4080255 (1978-03-01), Rylatt
patent: 4080257 (1978-03-01), Machado et al.
patent: 4158605 (1979-06-01), Cooper, Jr. et al.
patent: 4421715 (1983-12-01), Gunter et al.
patent: 4425298 (1984-01-01), Shields

Affiliated with

Also associated with

Rating

Method and apparatus for eliminating leakage spaces between the does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for eliminating leakage spaces between the , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for eliminating leakage spaces between the will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1787482