초록 ▼

A system of puncture-resistant and tear-resistant flexible skin, placed inside the steel cargo tanks of existing or newly-built crude/product carriers (oil tankers), enclosing their liquid cargo with a leak-proof seal while creating a void space between the outer surface of the flexible skin and the

A system of puncture-resistant and tear-resistant flexible skin, placed inside the steel cargo tanks of existing or newly-built crude/product carriers (oil tankers), enclosing their liquid cargo with a leak-proof seal while creating a void space between the outer surface of the flexible skin and the inner surface of the steel tanks. The purpose of the invention is to prevent leakage of cargo to the sea in case of groundings or collisions, wherein the steel bottom or side hull of the ship is breached but the flexible inner skin remains intact due to the distance separating it from the steel outer hull and its property to deform, yield or “give”. Arrangements and means of attachment are further described.

대표청구항 ▼

In a liquid cargo vessel having an outer, substantially watertight structural hull comprising a bottom portion and upstanding side wall portions and one or more horizontally disposed decks defining, in combination, a maximum closed liquid cargo space, said vessel further having a plurality of interi

In a liquid cargo vessel having an outer, substantially watertight structural hull comprising a bottom portion and upstanding side wall portions and one or more horizontally disposed decks defining, in combination, a maximum closed liquid cargo space, said vessel further having a plurality of interior bulkheads, at least some of which are fastened at extreme ends to said hull, and a plurality of vertical walls which are spaced away from said hull side walls and intersect said bulkheads; said hull side walls, portions of said bottom portion and said bulkheads and selected ones of said vertical walls forming exterior compartments and said other portions of said bottom portion and said bulkheads and said vertical walls forming interior compartments within said cargo space, apparatus for preventing the discharge of liquid cargo from said cargo compartments when said vessel is subjected to puncture below the cargo line by a foreign object comprising: a flexible, free-hanging composite liner impermeable to a desired liquid cargo material having an area extending across at least one of said compartments at least in the vicinity of the portion of the hull forming said at least one compartment; and means for fastening said liner within said compartment in a sagging manner retain said liquid cargo therein and to provide cargo-free space between said hull and said liner, the minimum distance between said hull and said liner when said liner contains cargo being selected and the location within said compartment of said means for fastening being selected such that said cargo is retained within said liner despite puncture and entry into said hull by a foreign object to a distance greater than said minimum distance.