用于海底管道维修的组合式机械三通研制

组合式机械三通是海底管道维修的重要设备,主要由上半瓦、下半瓦、轴向密封条、径向密封条、半瓦锥塞以及联接螺栓等组成。由于采用螺栓联接,避免了焊接质量差的水下焊接,可直接用于海底管道维修。该组合式机械三通密封的特殊设计使之能配合开孔机开出与管道内径相等的孔;组合式机械三通两端设置的半瓦锥塞具有紧紧咬住管道的能力,使之在工作过程中具有防止其本身及相连设备翻倒的功能。

Development of a combined and mechanical tee branch for subsea pipeline repair

The combined and mechanical tee branch is an important apparatus for sub-sea pipeline repair. It is composed of an upper half slip and lower half slip, axial and radial seals, half core plug and a connecting bolt. Poor sub-sea welding is avoided by using bolt connection; it can be directly used for sub-sea pipeline welding. The special design of the tee branch is appropriate for drilling holes equal to the inner pipeline . diameters. The half slips arranged on both ends of tee branch have the capacity for tightly engaging the pipe and preventing the tee branch and connected apparatuses from overturning in operation.