| 摘要 |
<p>A slip joint clamp (30) is disclosed which structurally replaces cracked welded joints in the core spray downcomer slip joint coupling (20), which is part of the lower portion of internal core spray piping internal to a reactor vessel of a Boiling Water Reactor plant. The internal piping delivers core spray cooling water to the reactor core region. The clamp assembly (30) consists of a primary clamp housing (32) and a secondary clamp housing (34), which are rotationally joined together by a hinge assembly (36, 46) including a hinge pin 36. The clamp assembly (30) is installed at a desired elevation relative to the downcomer slip joint (26), and then secured to the downcomer piping by installing coupling bolts (38) and associated coupling bolt keeper nuts (40) that hold the primary and secondary clamp housings (32, 34) in a facing relationship to one another around the downcomer slip joint (26).</p> |
