Core disruptive accident margin seal

Details Core disruptive accident margin seal Core disruptive accident margin seal

1976-08-13

1978-03-14

Nelson, Peter A.

Fluid handling

Flow affected by fluid contact, energy field or coanda effect

Means to regulate or vary operation of device

176 37, 137251, G21C 1502

Patent

active

040789691

ABSTRACT:
An apparatus for sealing the annulus defined between a substantially cylindrical rotatable first riser assembly and plug combination disposed in a substantially cylindrical second riser assembly and plug combination of a nuclear reactor system. The apparatus comprises a flexible metal member having a first side attached to one of the riser components and a second side extending toward the other riser component and an actuating mechanism attached to the flexible metal member while extending to an accessible location. When the actuating mechanism is not activated, the flexible metal member does not contact the other riser component thus allowing the free rotation of the riser assembly and plug combination. When desired, the actuating mechanism causes the second side of the flexible metal member to contact the other riser component thereby sealing the annulus between the components.

REFERENCES:
patent: 3522144 (1970-07-01), Webb et al.
patent: 3713461 (1973-01-01), Noteltiers
patent: 3819478 (1974-06-01), Thorel et al.
patent: 3867254 (1975-02-01), Brandstetter
patent: 3926722 (1975-12-01), Dupen

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