Core disruptive accident margin seal
An apparatus is described 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.
- Assignee:
- Dept. of Energy
- Patent Number(s):
- US 4078969
- OSTI ID:
- 6670202
- Resource Relation:
- Patent File Date: Filed date 13 Aug 1976; Other Information: PAT-APPL-714,221
- Country of Publication:
- United States
- Language:
- English
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Core disruptive accident margin seal
Core disruptive accident margin seal