Offshore fluid swivel spare

Details Offshore fluid swivel spare Offshore fluid swivel spare

1997-01-08

1998-08-25

Chambers, A. Michael

Fluid handling

Processes

137580, 285136, 285190, F16L 2706

Patent

active

057974136

ABSTRACT:
A fluid swivel arrangement comprising a vertical stack of fluid swivels mounted on a turret of a weathervaning ship, enables a spare fluid swivel to be provided without requiring an additional pipe and consequent larger diameter of fluid swivels. A pair of fluid swivels (53, 54) are provided, with one serving as a spare to be used in the event of failure of the other. A single pipe (94) extends through holes (120) in the swivels and is coupled to the inlet ports (90, 92) of both swivels, so it can direct fluid into either one. A means for controlling flow, enables the flow to be switched to either fluid swivel. The means for controlling flow can include a plug (140) for insertion into the inlet port of one of the swivels, to block the inflow of fluid thereat. The means for controlling flow can also include a valve (130) lying along the pipe between the upper and lower fluid swivels, so when the valve is closed fluid flows only to the lower fluid swivel.

REFERENCES:
patent: 2343491 (1944-03-01), Bard
patent: 2913002 (1959-11-01), Janas
patent: 4126336 (1978-11-01), Ortloff et al.
patent: 4391298 (1983-07-01), Ortloff
patent: 4405162 (1983-09-01), Williams
patent: 4647077 (1987-03-01), Ethridge et al.

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