Tube lane pivoting device for nuclear steam generator with super

Details Tube lane pivoting device for nuclear steam generator with super Tube lane pivoting device for nuclear steam generator with super

1994-10-11

1996-06-25

Bennett, Henry A.

Liquid heaters and vaporizers

Indirectly heated

Separate fluid

122381, F22B 102

Patent

active

055290205

ABSTRACT:
Tube lane blocking is accomplished by a plurality of removable blocks which can be fitted and extracted from the central region, in the inner casing of the steam generator. The blocks are superposed in a stack resting on the tube plate, and are immobilized at their ends by a holding fixture. An anti-liftoff blocking member at opposite ends of the blocks prevents them from being lifted off the tube plate. When maintenance or repair of the tube plate is required, the holding fixture and anti-liftoff blocking member can be withdrawn in order to permit access to the tube plate and the adjacent tube bundle.

REFERENCES:
patent: 4037569 (1977-07-01), Bennett et al.
patent: 5335631 (1994-08-01), Daffos et al.
Search Report FR 93 12032.

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