| 摘要 |
<p>Device for connecting pipelines conducting fluid under pressure, such that relative movement is allowed between two coupling parts carrying respective coupling ends of the pipelines, with possibility for pressure testing of primary seals before operation, wherein a first of the coupling parts is comprising a central core (1) provided with a bore (60) in longitudinal direction and a radial passage (61) with fluid connection to the longitudinal bore (60), which radial passage (61) has fluid connection with a ring formed passage (62) formed in a second ring formed coupling part (2) that is movable relative to the first coupling part, where facing axial surfaces (surfaces substantially normal to the longitudinal axis) between the second connection part and both the first connection part and an additional part comprising dynamic hydraulic test seals (20, 21), dynamic hydraulic primary seals (22, 23) and dynamic hydraulic secondary seals (24, 25), have constant sealing gap for the dynamic seals (20, 21, 22, 23, 24, 25) independent of the fluid pressure in the passage (62) in the second coupling part, distinguished in that the device is comprising a relative to the first coupling part stationary bearing ring (3), arranged over the second coupling part and equipped with axial pretensioning against the second coupling part with at least one spring and having construction allowing supply of a compensator fluid to a compensator gap that in substance is arranged parallel with the sealing planes and with the bearing ring between the compensator gap and the sealing planes, such that a constant sealing gap can be provided with pretensioning and compensator fluid for all fluid pressures.</p> |
