Means for rapidly exposing the core of a nuclear reactor for refueling专利检索-燃料组件堆芯核反应堆核能专利检索查询-专利查询网

Means for rapidly exposing the core of a nuclear reactor for refueling

阅读：169发布：2022-11-27

专利汇可以提供Means for rapidly exposing the core of a nuclear reactor for refueling专利检索，专利查询，专利分析的服务。并且The upper structure of a nuclear reactor consisting of the control rod mechanisms, the pressure vessel closure head, the upper internals package, and other associated structure are connected to form an integral unit which may be removed from the reactor vessel in a single lift to expose the fuel assemblies of the reactor core to the open end of the reactor vessel. The closure head is hung from the control rod drive missile shield and the upper internals package is hung from the closure head.，下面是Means for rapidly exposing the core of a nuclear reactor for refueling专利的具体信息内容。

权利要求

1. A nuclear reactor comprising, in combination: a pressure vessel sealed by a closure head, said vessel containing an upper structure consisting of said closure head, and members attached thereto, control rod mechanisms, and an upper internal support package; removable means on said head for separating said head from the pressure vessel; a plurality of control rods arranged for translational movement with respect to a nuclear core and a plurality of drive mechanisms connected to said control rods and situated exterior to said reactor vessel and on said closure head; a missile shield mounted outwardly of said control mechanisms; a first plurality of elongated rods supporting said missile shield at one end and affixed at their other ends to the closure head; a plurality of penetration adapters sealed in and extending through the closure head; a second plurality of elongated rods supported at one end by said penetration adapters and affixed at the other end to said upper structure whereby said upper structure is tied to said closure head to expose said nuclear core upon removal of said missile shield and its attached closure head from said vessel.

2. The nuclear reactor of claim 1 wherein said drive mechanisms are laterally supported by the missile shield.

3. The nuclear reactor of claim 2 including a removable nut affixed to an extremity of each said second plurality of elongated rods, said nut being supported by the penetration adapter whereby upon removal of said nuts, said upper structure is disconnected from the adapters.

4. The nuclear reactor of claim 3 including a sealing means surrounding the nut and removably affixed in a sealing relationship with said penetration adapter.

5. The nuclear reactor of claim 3 including an enclosure surrounding the drive mechanisms, said enclosure being supported by said first plurality of elongated rods.

6. The nuclear reactor of claim 1 wherein said first plurality of elongated rods includes actuation means attached to an end thereof for selectively disconnecting said rods from the missile shield.

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Means for rapidly exposing the core of a nuclear reactor for refueling

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