公开(公告)号：US5297187A

公开(公告)日：1994-03-22

申请号：US996365

申请日：1992-12-23

申请人： Jan H. Sodergren ,  Harry K. Williams

发明人： Jan H. Sodergren ,  Harry K. Williams

IPC分类号： F16L55/136 ,  G21C13/067

CPC分类号： G21C13/067 ,  F16L55/136 ,  G21Y2002/202 ,  G21Y2002/206 ,  G21Y2004/30 ,  Y02E30/40

摘要： A device for sealing a penetration in a pressurizer of a nuclear steam supply system includes a hollow cylinder adapted to be inserted into the heater sleeve, in place of the heater. The cylinder includes a nose portion formed with a number of axially extending slots defining therein a number of radially displaceable segments, each of which has an outwardly extending flange, proximate its distal end, which is engageable with the heater sleeve to resist blowout. A rod, inserted into the cylinder, seals the passage therethrough while locking the displaceable nose portion segments in their sleeve-engaging position. An annular soft nickel band on the outside of the cylinder engages the inner surface of the heater sleeve to provide an effective seal therebetween.

摘要翻译： 用于密封在核蒸汽供应系统的加压器中的穿透的装置包括适于插入加热器套筒中的中空圆柱体，代替加热器。 圆柱体包括形成有多个轴向延伸的槽的鼻部，其中限定有多个可径向移动的段，每个段具有向外延伸的凸缘，靠近其远端可与加热器套筒接合以抵抗喷吹。 插入气缸中的杆将通道穿过其中，同时将可移动的鼻部分段锁定在其套筒接合位置。 在圆筒外侧的环形软镍带与加热器套筒的内表面接合，以在它们之间提供有效的密封。

公开(公告)号：US4513786A

公开(公告)日：1985-04-30

申请号：US484742

申请日：1983-04-14

申请人： Jan H. Sodergren ,  James W. Hales

发明人： Jan H. Sodergren ,  James W. Hales

IPC分类号： F16L55/10 ,  F16L55/13 ,  F28F11/02

CPC分类号： F28F11/02 ,  F16L55/13 ,  Y10T29/49352 ,  Y10T29/4994

摘要： Apparatus as provided for plugging a tube end in such a manner that the plug can be later removed. The apparatus includes a hollow plug (10) closed at the end (12) inserted into the tube (20) and open at its other end. The plug has a band (18) of ductile metal (gold, silver, or pure iron) on its outer surface which is extruded into any crevices caused by irregularities in the inner wall surface of the tube when the plug is mechanically expanded into the tube. The plug has a portion near its outer end of slightly enlarged diameter (14) to provide a light interference fit with the tube to hold the plug in place prior to and during the expanding step.

摘要翻译： 提供用于以这样的方式堵塞管端的装置，即可以稍后去除塞子。 该装置包括在插入管（20）的端部（12）处封闭并在其另一端开口的中空塞（10）。 插头在其外表面上具有延性金属（金，银或纯铁）的带（18），该带（18）被挤压成由管子的内壁表面中的凹凸引起的任何缝隙，当插塞机械地膨胀成管时 。 塞子具有靠近其外端的部分，其直径略微扩大（14），以提供与管的光过盈配合，以在膨胀步骤之前和期间将塞子保持在适当位置。