发明名称 |
METHOD AND APPARATUS FOR BWR JET PUMP INLET MIXER COMPLIANT STOP |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method and apparatus for mitigating flow induced vibration (FIV) of a BWR jet pump inlet mixer and slip joint leakage. <P>SOLUTION: An inlet mixer compliant stop may be installed in a pocket area between a riser pipe and an inlet mixer of a BWR jet pump assembly. The inlet mixer compliant stop includes a main body 22 and a foot that are separated via the tightening of one or more jacking bolts 30 used to connect the main body and the foot. A cold spring 22a attached to the main body provides a lateral force that is imparted on the inlet mixer, to force the inlet mixer away from a centerline of the riser pipe. A precise lateral force may be imparted on the inlet mixer by gauging a width of a gap between opposing bosses on a front face of the main body and a distal end of the cold spring 22a. <P>COPYRIGHT: (C)2013,JPO&INPIT |
申请公布号 |
JP2012237755(A) |
申请公布日期 |
2012.12.06 |
申请号 |
JP20120108070 |
申请日期 |
2012.05.10 |
申请人 |
GE-HITACHI NUCLEAR ENERGY AMERICAS LLC |
发明人 |
SPRAGUE ROBIN D;LENTNER BRUCE J;EMANUEL KLEIN;DAVID B DRENDEL;BRET E NELSON |
分类号 |
G21C15/25 |
主分类号 |
G21C15/25 |
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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