Induced nuclear reactions: processes – systems – and elements – Reactor structures – With particular control rod guide structure
Patent
1990-07-16
1992-03-24
Hunt, Brooks H.
Induced nuclear reactions: processes, systems, and elements
Reactor structures
With particular control rod guide structure
376449, G21C 106
Patent
active
050986473
ABSTRACT:
A guide tube insert assembly for receiving and guiding a control rod assembly through mutually aligned apertures formed in an upper support plate and an upper core plate of a nuclear reactor is disclosed. The guide tube insert assembly includes a plurality of guide plates with each guide plate including a plurality of bores with respective bores of each of the guide plates being axially aligned with one another so as to form a plurality of axial passages for conducting rodlets of the control rod assembly into and out of the fuel rod assemblies of a nuclear reactor. A plurality of tie rods are provided and extend between an uppermost guide plate and a lowermost guide plate, the tie rods being concentrically surrounded by a plurality of spacer sleeves of a predetermined length, with the spacer sleeves being positioned between adjacent guide plates so as to space the guide plates a predetermined distance from one another. The guide tube insert assembly further includes nuts which threadingly engage opposing ends of the tie rods so as to generate a compressive force between the lowermost and the uppermost guide plates to maintain the guide plates in their predetermined positions with respect to one another. The tie rods thereby maintain the predetermined spacing between each of the plurality of guide plates and allow the plurality of guide plates to be simultaneously removed from within a guide tube extending between the upper core plate and the upper support plate within the upper internals of a nuclear reactor.
REFERENCES:
patent: 3940311 (1976-02-01), Frisch et al.
patent: 4173513 (1979-11-01), Obermeyer et al.
patent: 4597935 (1986-07-01), Verdean et al.
Hopkins Ronald J.
Land John T.
Hunt Brooks H.
Voss Frederick H.
Westinghouse Electric Corp.
LandOfFree
Guide tube insert assembly for use in a nuclear reactor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Guide tube insert assembly for use in a nuclear reactor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Guide tube insert assembly for use in a nuclear reactor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2008397