Control rod housing support bars with wing assemblies
First Claim
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1. A support for a control rod drive housing in a boiling water reactor comprising:
- a first means for supporting a control rod drive; and
a second means for supporting said control rod drive, said second means disposed on said first supporting means wherein said second means is movable on said first supporting means from a support position to a non-support position, whereby said control rod drive is supported by said first and second supporting means when said second means is in said support position and said control rod drive is not supported by said first and second supporting means and can be replaced without removing said second supporting means from said first support means when said second supporting means is in said non-support position.
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Abstract
A boiling water reactor control rod drive housing support bars having wing assemblies to limit the travel of a control rod in the event that a control rod housing is ruptured. The wing assemblies are placed on support bars located in rows on opposing sides of the control rod drives. Each wing on the wing assemblies supports a quadrant of a control rod drive. The wing assemblies may be rotated from an operation position to a service position to allow replacement of the control rod drives.
24 Citations
20 Claims
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1. A support for a control rod drive housing in a boiling water reactor comprising:
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a first means for supporting a control rod drive; and a second means for supporting said control rod drive, said second means disposed on said first supporting means wherein said second means is movable on said first supporting means from a support position to a non-support position, whereby said control rod drive is supported by said first and second supporting means when said second means is in said support position and said control rod drive is not supported by said first and second supporting means and can be replaced without removing said second supporting means from said first support means when said second supporting means is in said non-support position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A support for a control rod drive housing in a boiling water reactor comprising:
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a plurality of first support members provided in rows on opposing sides of a lower portion of a plurality of control rod drives; and a plurality of second support members disposed on said first support member, said second support member having a plurality of extension members for supporting said control rod drives, wherein said second support member is movable from a support position to a non-support position, whereby said control rod drive is supported by said extension members when said second means is in said support position and said control rod drive is not supported by said extension members and can be replaced without removing said second support means from said first support means when said second support means is in said non-support position. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification