| 摘要 |
<p>This invention relates to a high pressure swivel (1) comprising an annular inner wall (3) and an annular outer (4) wall, rotatable relative to one another around an axis (6), the walls defining a toroidal chamber (7), an axial gap (11) extending between the walls from the chamber to an outer part (12,12'), the gap comprising seen in the direction of the outer part: an isolation seal (13) situated in the gap adjacent the chamber, an isolation gap section (13') extending downstream from the isolation seal, a primary seal (14) situated in the gap, a primary gap section (14') situated downstream from the primary seal, and a secondary seal (15) situated downstream from the primary seal.</p> |
