| 摘要 |
<p>Outflow of oil from a damaged tanker having some tanks dedicated for carriage of oil and others for sea water ballast is minimized by transferring oil out of the upper part of any damaged tank to one or more empty ballast tanks. This is accomplished by installing a passageway in bulkheads common to a cargo tank and a ballast tank which is normally closed by a one-shot valve including an annular flange (86) secured to one end of a section of pipe, a blank flange (84) secured to said one end of said pipe by a short, thin, cylindrical sealing ring (82) and a hydraulic hose (92) compressed between the flanges which, when pressurized, ruptures the sealing ring to release the blank flange and open the passageway to allow oil to flow from the damaged cargo tank to a ballast tank. <IMAGE></p> |
