Sleeve connection for reconstitutable control rod guide tube

Details Sleeve connection for reconstitutable control rod guide tube Sleeve connection for reconstitutable control rod guide tube

1979-12-10

1982-06-08

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Plural fuel segments or elements

G21C 1920

Patent

active

043337988

ABSTRACT:
A reconstitutable nuclear fuel assembly is improved by the placement of a wear sleeve within the control rod guide tube and below the removable guide tube post. The improvement comprises the guide tube having an internal ledge at its upper end from which a flanged, thin-walled metal cylindrical sleeve is suspended. The cylinder is expanded into firm contact with the inner wall of the guide tube over substantially the entire length of the cylinder. The friction fit provided by the firm contact prevents the sleeve from being pushed upward by the flow of coolant through the tube, while the flange and ledge prevent any downward movement of the sleeve in the tube. The flange on the ledge is located in spaced vertical alignment with the lowermost internal portion of the post. Thus, as the sleeve thermally expands it moves upward into the space. The post, however, offers an absolute limit for the upward movement of the sleeve and thereby acts as a redundant vertical stop to prevent the sleeve from becoming dislocated within the post.

REFERENCES:
patent: 3770583 (1973-11-01), Klumb
patent: 3992259 (1976-11-01), Anthony
patent: 4208248 (1980-06-01), Jabsen

Affiliated with

Also associated with

Rating

Sleeve connection for reconstitutable control rod guide tube does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sleeve connection for reconstitutable control rod guide tube, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sleeve connection for reconstitutable control rod guide tube will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-552000