Nuclear reactor installation

Details Nuclear reactor installation Nuclear reactor installation

1974-09-05

1977-06-07

Bentley, Stephen C.

176 87, G21C 900

Patent

active

040281760

ABSTRACT:
A nuclear pressurized-water reactor installation includes a reactor pressure vessel, a concrete biological shield surrounding the vessel and a cylindrical pressurized coolant pipe extending from the vessel. The wall forms a hole of substantially larger diameter than the diameter of the coolant pipe and through which this pipe is extended with a cylindrical space therearound, and the wall forms at least one air space between the vessel and the wall and which is spanned by the pipe. If the pipe within the hole fails, its pressurized-water coolant which then escapes can flow through the cylindrical space into the air space and down and under the vessel to exert an upward force on the vessel. To prevent this, a cylindrical containment encircles the pipe in the hole and extends to the vessel with which the containment fluid-tightly seals, thus preventing coolant escaping from the pipe from having access to the air space around and beneath the bottom of the pressure vessel.

REFERENCES:
patent: 3087514 (1963-04-01), Highsmith
patent: 3488067 (1970-01-01), Sommer
patent: 3753853 (1975-08-01), Schubert
patent: 3775251 (1973-11-01), Schabert
patent: 3818935 (1974-06-01), Karker et al.

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