公开(公告)号：US5966308A

公开(公告)日：1999-10-12

申请号：US364881

申请日：1994-12-27

Applicant: Benedict Kazirskis ,  James Cassidy Donohue

Inventor： Benedict Kazirskis ,  James Cassidy Donohue

IPC: B23K9/10 ,  G06F19/00 ,  B23K37/02

CPC classification number: B23K9/1062 ,  B23K2201/06 ,  Y10T29/49746

Abstract: An apparatus for upgrading/repairing existing piping systems of a nuclear reactor without removal/replacement of the old piping. The process involves the steps of machining a counterbore of exposed corrosion-susceptible material and then depositing a corrosion-resistant weld material, thereby isolating the weld joint from corrosion susceptibility. A tool is inserted into the inside diameter of the piping system through an inspection port, valve body or segment removal. Then a tool mounting fixture equipped with axial and rotational capabilities is positioned in relation to the weld joint and locked in place. The tool mounting fixture remains locked in place throughout the entire repair process. A work surface mapping module is programmed to first gather relative reference points throughout the entire repair region. Upon data acquisition completion, the system creates a map of the existing inside diameter configuration. Then in successive stages, a machining head module and a welding head module are respectively manually installed and remotely operated by computer control. The machining and welding processes follow the existing configuration such that upon completion, the final repair blends with the piping inside diameter contour.

Abstract translation: 用于升级/修理核反应堆的现有管道系统的装置，不需要拆除/更换旧管道。 该方法包括加工暴露的耐腐蚀材料的沉孔的步骤，然后沉积耐腐蚀的焊接材料，从而将焊接接头与腐蚀敏感性隔离。 工具通过检查口，阀体或管段拆除而插入管道系统的内径。 然后，具有轴向和旋转能力的工具安装夹具相对于焊接接头定位并锁定就位。 在整个维修过程中，工具安装夹具保持锁定到位。 工作表面映射模块被编程为首先在整个修复区域收集相对参考点。 数据采集​​完成后，系统创建现有内径配置的映射。 然后在连续阶段，分别手动安装加工头模块和焊接头模块，并通过计算机控制进行远程操作。 加工和焊接过程遵循现有的配置，使得在完成后，最终的修复与管道内径轮廓混合。

公开(公告)号：US5735010A

公开(公告)日：1998-04-07

申请号：US612738

申请日：1996-03-08

Applicant: James Edgar Burner ,  James Cassidy Donohue ,  Bangalore P. Mallikarjuna

Inventor： James Edgar Burner ,  James Cassidy Donohue ,  Bangalore P. Mallikarjuna

IPC: B08B1/04 ,  A47L15/00 ,  B08B1/00

CPC classification number: B08B1/04

Abstract: An apparatus for cleaning of a reactor pressure vessel head closure stud. The surface of the stud is cleaned by power vacuum brushing. The stud is hung vertically in a cabinet which supports a vertically elevatable spinner housing. The stud is cleaned in a single process using a rotating wire brush system which is rotatably mounted in the spinner housing and has a central opening for passage of the stud. A plurality of wire bushes are arranged in a circular array surrounding the stud. While the wire brushes are rotating in contact with the stud external surface, the spinner housing and wire brush assembly are displaced vertically by an elevator so that the rotating brushes travel along the full length of the stud. The rotating brushes remove accumulated material on the stud surface. The resulting contaminated debris is contained in a volume enclosed by a brush canister and a bellows. The bellows expands or contracts as the elevator travels. The contaminated debris is drawn into a high-efficiency particulate absolute filter by a vacuum pump.

Abstract translation: 用于清洁反应堆压力容器头部闭合螺柱的装置。 螺柱的表面通过动力真空刷涂清洁。 螺柱垂直悬挂在支撑垂直升降的旋转器外壳的机柜中。 螺柱使用旋转钢丝刷系统以单个工艺进行清洁，旋转钢丝刷系统可旋转地安装在旋转器壳体中并具有用于螺柱通过的中心开口。 多个线衬套以围绕螺栓的圆形阵列布置。 当钢丝刷与螺柱外表面接触旋转时，旋转器壳体和钢丝刷组件由电梯垂直移动，使得旋转的刷沿螺柱的整个长度行进。 旋转的刷子去除螺柱表面上的积聚物。 所得到的污染碎屑被包含在由刷子罐和波纹管封闭的体积中。 随着电梯行进，风箱膨胀或收缩。 被污染的碎片通过真空泵吸入高效颗粒绝对过滤器。