| 摘要 |
An insertion and setting structure (1) is used for inserting/setting a retrievable subsea unit (2) such as a subsea control module, subsea accumulator module, communication distribution unit or the like, into a subsea tree or also in a stand alone unit. The insertion and setting structure (1) comprises a frame (4) with at least a locking means (5) for locking and unlocking the structure (1) with respect to the subsea tree or a stand alone unit. Moreover, a lowering and lifting means (6) is used for lowering and lifting the retrievable subsea unit (2) with respect to an accommodation space and/or a module locking/ unlocking means (7) is also used for releasably locking the retrievable subsea unit to the lowering and lifting means (6). With such an insertion and setting structure it is easily possible to transport a corresponding retrievable subsea unit to install it, to remove it from the accommodation space, and to transport it back to a vessel or the like on sea level for a replacement or maintenance. |
