Apparatus for inspecting the interior of a reactor vessel

Details Apparatus for inspecting the interior of a reactor vessel Apparatus for inspecting the interior of a reactor vessel

1982-07-23

1986-04-29

Cangialosi, Sal

Induced nuclear reactions: processes, systems, and elements

Testing, sensing, measuring, or detecting a fission reactor...

Vessel monitoring or inspection

G21C 1700

Patent

active

045856109

ABSTRACT:
For the inspection of a reactor vessel (1) there is used a carriage (4) provided with wheels (15) to enable the carriage to be driven around a reactor opening (2). The carriage supports a mast (36), which is provided with inspection equipment (38) which can be driven along the mast. Known apparatus of this kind block the reactor opening, thereby to prevent other work from being carried out during an inspection period, for example such work as the change of fuel elements. According to the invention, the carriage with mast and inspection equipment are so formed that a geometric projection thereof onto a plane extending perpendicularly to the geometric axis of the cylindrical reactor vessel lies within a sector of less than 180.degree., with the exception of an area outside the geometric projection of the reactor hearth onto the same plane.

REFERENCES:
patent: 4036686 (1977-07-01), Weilbacher et al.
patent: 4048009 (1977-09-01), Weilbache
patent: 4217173 (1980-08-01), Jabsen
patent: 4330865 (1982-05-01), Hyde et al.
patent: 4345658 (1982-08-01), Danel et al.
patent: 4436694 (1984-03-01), Vassalotti et al.

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