发明名称 |
A CLUSTER GUIDE WITH CENTERING AND ANTIVIBRATORY POSITIONING DEVICE FOR NUCLEAR REACTORS |
摘要 |
A tubular cluster guide for use in a nuclear reactor having upper internals comprising a lower plate formed with flow openings is fixed to an upper plate of the intervals and provided with a device for guiding and centering its lower part in the lower core plate. The centering device has a plurality of rigid blades carried by the lower part of the guide, spaced apart angularly about the axis of the guide and engagable in an opening of the lower plate with a radial clearance and a plurality of flexible blades between the rigid blades. The flexible blades bear on the edge of the opening and exert a radially directed force thereon. Bridges may be formed in the lower plate to retain a broken resilient blade. |
申请公布号 |
ZA8608942(B) |
申请公布日期 |
1987.10.28 |
申请号 |
ZA19860008942 |
申请日期 |
1986.11.26 |
申请人 |
FRAMATOME |
发明人 |
GUY DESFONTAINES;MICHEL BABIN |
分类号 |
G21C7/27;G21C1/01;G21C5/10 |
主分类号 |
G21C7/27 |
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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