发明名称 |
PASSIVE SHUTDOWN SEALING DEVICE FOR A SYSTEM OF SHAFT SEALS OF A REACTOR COOLANT PUMP UNIT |
摘要 |
<p>The present invention relates to a passive shutdown sealing device (20) for a reactor coolant pump unit comprising: a split sealing ring (23) having an inactivated position in which a leakage flow is permitted and an activated position in which said ring stops said leakage flow; at least one piston (22) designed to position said split sealing ring (23) in its activated position; locking/unlocking means (25) designed to lock said at least one piston (22) in its inactivated position when the temperature of said locking/unlocking means is below a temperature threshold and to release said at least one piston (22) when the temperature of said locking/unlocking means is above said temperature threshold; elastic means (24) designed to move said at least one piston (22) when said piston is released, so as to position said sealing ring (23) in its activated position.</p> |
申请公布号 |
WO2013113827(A1) |
申请公布日期 |
2013.08.08 |
申请号 |
WO2013EP51928 |
申请日期 |
2013.01.31 |
申请人 |
JEUMONT SYSTEMES DE POMPES ET DE MECANISMES |
发明人 |
THUILLIER, ROMAIN |
分类号 |
F16J15/00;F04D15/00;F04D29/10;F16J15/16;F16J15/34 |
主分类号 |
F16J15/00 |
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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