QUICK-DETACHABLE COVER PLATE OF STEAM-GAS MIXTURE HEADER OF PRESSURE TUBE REACTOR Russian patent published in 2014 - IPC G21C1/00 

FIELD: power industry.

SUBSTANCE: quick-detachable cover plate of a steam-gas mixture header of a pressure tube reactor includes a traverse, a ring-shaped base and a plug, to the vertical flanges of which thin-wall skirts with an oriented location of rolled metal fibres are welded. The skirts are made in the form of inverse flattened cones with mating surfaces and connected to each other with a weld on end surfaces. The traverse is equipped with assemblies of attachment to a horizontal flange of the base and to the plug.

EFFECT: operativeness of penetration into a reactor space, possibility of multiple opening and restoration of a tight helium seam, reduction of labour intensity for removal and reverse assembly of the cover plate, and reducing an irradiation dose absorbed by the personnel.

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