The invention provides an underwater dry cabin wellhead pipeline cabin-penetrating sealing structure. The underwater dry cabin wellhead pipeline cabin-penetrating sealing structure comprises a process cap, a cap and ring connecting bolt, a pressing ring connecting bolt, an O-shaped rubber ring for axial sealing, a pressing ring, an O-shaped rubber ring for radial sealing, a box bottom built-in cylinder, a sealing rubber cylinder and the like. The process cap and the O-shaped rubber rings play a role in pre-sealing before wellhead pipeline sealing installation. The sealing rubber cylinder and the pressing ring are of a main sealing structure. After a dry cabin is in place, the pressing ring bolt is screwed, then the sealing rubber cylinder can be extruded, and the requirement for cabin-penetrating sealing is met.
本发明提供一种水下干式舱井口管道穿舱密封结构,包括工艺帽、帽与环连接螺栓、压紧环连接螺栓、轴向密封用O型橡胶圈、压紧环、径向密封用O型橡胶圈、箱底内置筒体和密封橡胶筒等部分。工艺帽、O型橡胶圈起到井口管道密封安装之前的预密封作用。密封橡胶筒和压紧环为主密封结构。干式舱就位之后,拧紧压紧环螺栓即可挤压密封橡胶筒,起到穿舱密封的需要。
Underwater dry cabin wellhead pipeline cabin-penetrating sealing structure
一种水下干式舱井口管道穿舱密封结构
2021-06-01
Patent
Electronic Resource
Chinese
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