WEATHER COVERS FOR TANKERS

摘要

A liquid-transporting cargo ship has a hull which supports a main deck and several cargo tanks which extend above the main deck. A generally hemispherical cover surrounds the abovedeck portion of each tank. The cover is formed of at least three self-supporting metal plating subsections, each of which is connected along its bottom edge to the main deck and along its lateral edges to a meridonal expansion member which is generally tubular in cross section. For cargo tanks designed to carry cryogenic liquid, the cover is made gas-tight, and an inert atmosphere is maintained in surrounding relation to each cargo tank.