公开(公告)号：US06475294B2

公开(公告)日：2002-11-05

申请号：US09898429

申请日：2001-07-02

申请人： Jason McCanna ,  Jay S. Mandke

发明人： Jason McCanna ,  Jay S. Mandke

IPC分类号： B08B100

CPC分类号： F16L55/46 ,  B08B9/055 ,  B08B9/0551

摘要： A system for supplying pigs to a subsea pig launcher using a system carried and controlled by a remotely operated vehicle. The pigs are carried in racks that hold multiple pigs. The racks are extended and the pigs are allowed to drop into the barrel of the subsea pig launcher. The system is also equipped with a system that retracts the racks if hydraulic and electrical power is lost during the reloading process so that the remotely operated vehicle can be retrieved to the surface safely. The reloading process can be carried out by a remotely operated vehicle support vessel without the need for heavy lifting equipment or a large deck area.

摘要翻译： 一种使用由远程操作的车辆携带和控制的系统将猪供应给海底发射器的系统。 猪在携带多只猪的机架中携带。 机架延长，猪被允许落入海底发射筒的桶中。 如果液压和电力在重新加载过程中丢失，该系统还配有一个系统，该系统缩回机架，以便远程操作的车辆可以安全地被回收到地面上。 重新加载过程可以由远程操作的车辆支撑船进行，而不需要重型起重设备或大的甲板区域。

公开(公告)号：US06596089B2

公开(公告)日：2003-07-22

申请号：US09898427

申请日：2001-07-02

申请人： Brian Smith ,  Jay S. Mandke

发明人： Brian Smith ,  Jay S. Mandke

IPC分类号： B08B904

CPC分类号： F16L55/46 ,  B08B9/055 ,  B08B9/0551

摘要： A piston pig for pushing pigs from a larger diameter conduit into a smaller diameter conduit, where one embodiment includes a cylindrical body with a first sealing disc attached to the body and adapted to seal against the larger diameter conduit and maintain a pressure differential across the body of the piston pig. The piston pig also includes a second sealing disc attached to the body and capable of sealing against the smaller diameter conduit and maintain a pressure differential across the body. Certain embodiments also include a pressure control device, such as a resilient flapper disc, to limit the differential pressure across the body. Some piston pig embodiments may also include an end cap attached to, and slidable relative to, the body, where the end cap has a closed position in which fluid cannot bypass the end cap and an open position in which fluid can bypass the end cap.

摘要翻译： 一种活塞猪，用于将猪从较大直径的管道推入较小直径的管道，其中一个实施例包括圆柱形主体，其具有附接到主体的第一密封盘并且适于密封较大直径的管道并且保持身体的压力差 的活塞猪。 活塞猪还包括附接到主体并且能够密封较小直径的管道并且保持穿过身体的压力差的第二密封盘。 某些实施例还包括压力控制装置，例如弹性挡板盘，以限制穿过身体的差压。 一些活塞猪实施例还可以包括附接到主体并且可相对于主体滑动的端帽，其中端盖具有关闭位置，在该关闭位置，流体不能绕过端盖，并且其中流体可绕过端盖的打开位置。