公开(公告)号：US11538598B2

公开(公告)日：2022-12-27

申请号：US16173117

申请日：2018-10-29

申请人： GE-Hitachi Nuclear Energy Americas LLC

发明人： Hampton W. Lane ,  Bret E. Nelson ,  Brandon J. Schoonmaker ,  Lee J. Andre ,  Hugo P. Rooney ,  David J. Bell

IPC分类号： F16L23/12 ,  G21C13/032 ,  G21C15/25 ,  F16L23/028 ,  F04F5/46

摘要： Clamps can be secured to a slip joint and limit flow through the same by seating on a diffuser axially regardless of wear and damage in the slip joint. An extension from the clamp seats to the inlet mixer. These extensions can be adjusted from outside the clamp to achieve an individual preload or flow limitation through the slip joint. The extension may be an O-ring or other shape. A biasing drive may connect to and move the extension from an outside surface of the clamp. The biasing drive may include a threaded cap in an outer groove that is linked to a plunger via a spring. Clamps are fabricated of materials that maintain their physical properties when exposed to an operating nuclear reactor environment and may be relatively rigid and resilient metals.

公开(公告)号：US11112052B2

公开(公告)日：2021-09-07

申请号：US15473903

申请日：2017-03-30

申请人： GE-Hitachi Nuclear Energy Americas LLC

发明人： Sean T. Mosier ,  Bret E. Nelson

IPC分类号： F16L55/18 ,  F04F5/44 ,  B23P6/00 ,  G21C15/25 ,  G21C13/032 ,  F04F5/10 ,  F16L43/00 ,  F16L13/02 ,  F16L55/168 ,  F16L43/02

摘要： Systems repair jet pump elbow joining structures like RS1 and RS2 welds. Systems include a base having legs that secure to ends of the elbow in different directions, and a drive plate that joins to flow conduits where they meet the elbow. The drive plate and base may then be pushed together, resulting in compression or joining of the elbow and flow conduit. Multiple drive plates may be used with a single base to compress multiple flow conduits to the base. The base and the drive plates can be driven together with a driving bolt extending through the base and driving plate. To provide a better fit, grooves can be created in the flow conduits through machining from the installed base. The drive plate may be seated into the groove to achieve a desired orientation with less slippage. Example embodiments and methods do not require welding or a welding base.

公开(公告)号：US20180283593A1

公开(公告)日：2018-10-04

申请号：US15473903

申请日：2017-03-30

申请人： GE-Hitachi Nuclear Energy Americas LLC

发明人： Sean T. Mosier ,  Bret E. Nelson

IPC分类号： F16L55/18 ,  F04F5/44 ,  B23P6/00 ,  G21C15/25

摘要： Systems repair jet pump elbow joining structures like RS1 and RS2 welds. Systems include a base having legs that secure to ends of the elbow in different directions, and a drive plate that joins to flow conduits where they meet the elbow. The drive plate and may then be pushed together, resulting in compression or joining of the elbow and flow conduit. Multiple drive plates may be used with a single base to compress multiple flow conduits to the base. The base and the drive plates can be driven together with a driving bolt extending through the base and driving plate. To provide a better fit, grooves can be created in the flow conduits through machining from the installed base. The drive plate may then be seated into the groove to achieve a desired orientation with less slippage. Example embodiments and methods do not require welding or a welding base.