发明名称 |
METHODS AND APPARATUS FOR REPAIRING A CRACKED JET PUMP RISER IN A BOILING WATER REACTOR UTILIZING A SPACER CLAMP |
摘要 |
A method for reparing cracked jet pump riser assemblies (56) in a boiling water reactor utilizes a spacer clamp (80) and a seal collar (148). The spacer clamp is secured to the jet pump riser assembly to limit horizontal displacement between a shroud (18) and the jet pump riser assembly. A method for reparing a circumferential weld (72) connecting an elbow (70) of the jet pump riser assembly with a thermal sleeve (74) involves positioning the weld within the seal collar to limit leakage from the weld. The seal collar includes a pair of hinged jaw members movable between an open position and a close position for receiving a pipe therebetwen. The seal collar includes a pair of seals disposed along inner surfaces (176A and 177A) of the jaw members to circumferential contact with the pipe on opposite sides of the weld to limit leakage. |
申请公布号 |
WO0045393(A2) |
申请公布日期 |
2000.08.03 |
申请号 |
WO2000US00501 |
申请日期 |
2000.01.28 |
申请人 |
MPR ASSOCIATES, INC. |
发明人 |
WEEMS, STERLING, J.;SYLVESTER, WILLIAM, E. |
分类号 |
G21C1/08;G21C15/25;(IPC1-7):G21C/ |
主分类号 |
G21C1/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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