×

Apparatus and method for reinforcing jet pump riser

  • US 9,966,155 B2
  • Filed: 03/11/2014
  • Issued: 05/08/2018
  • Est. Priority Date: 08/17/2006
  • Status: Active Grant
First Claim
Patent Images

1. An apparatus for reinforcing a jet pump riser disposed in a reactor pressure vessel of a boiling water reactor, comprising:

  • an elbow upper clamp for covering an upper surface of a riser elbow of a jet pump riser and the riser elbow is coupled to a thermal sleeve from an upper side of the riser elbow, the elbow upper clamp including a first portion which covers an upper surface of a first portion of the riser elbow, the first portion of the riser elbow having a central axis extending in a vertical direction, a second portion which covers an upper surface of a second portion of the riser elbow, the second portion of the riser elbow having a central axis extending in a horizontal direction, and a third portion which covers a curved upper surface of the riser elbow, the third portion of the elbow upper clamp being disposed between the first portion of the elbow upper clamp and the second portion of the elbow upper clamp;

    an elbow vertical portion clamping member which covers a lower surface of the first portion of the riser elbow; and

    an elbow horizontal portion clamping member which covers a lower surface of the second portion of the riser elbow,wherein the elbow vertical portion clamping member cooperates with the first portion of the elbow upper clamp, and the elbow horizontal portion clamping member cooperates with the second portion of the elbow upper clamp so as to fix the thermal sleeve, the riser andwherein the elbow vertical portion clamping member and the elbow horizontal portion clamping member are each formed as a U-shaped member, the elbow vertical portion clamping member and the elbow horizontal portion clamping member being separated from each other.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×