Patent ID: 11014114

Abstract:
Described herein is a clamp for repairing a site of at least one damaged nozzle on a pipe for carrying liquid, such as a sparger nozzle in a header pipe in a boiling water reactor of a nuclear power plant. The clamp in general includes a housing configured for mounting over the site on a surface the pipe, wherein the housing has a front, sides, top, and back. The housing may include an opening, or the clamp may include an orifice plate having an opening and being positioned on the front side of the housing such that liquid exiting the pipe flows through one or both the opening in the housing and opening in the orifice plate. The clamp also includes a bottom surface which, together with the housing and orifice plate, when included, defines an interior chamber. The bottom plate has an opening for alignment, upon installation, with the site, and at least one member, for example, wedges for securing one of the damaged nozzle or support rings for stabilizing a replacement nozzle in position within the housing.