| 摘要 |
<p>An improved hull construction of a freight carrier with an upright cylindrical storage tank structure with heat-insulation on the outer circumferential surface thereof and having an upwardly-convex top surface, adaptable for the storage and transportation of high and/or low temperature freight material, which includes a tank bottom insulation disposed on the bottom part of the hull construction upon which the tank structure is mounted in position, tank skirt extending downwardly from the lower part of the cylindrical side plate extension of the tank structure, the upper part of the cylindrical tank skirt being secured to the tank structure, the lower part of the cylindrical skirt being connected to the hull construction, and wherein at least a peripheral part of the tank bottom plate is raised in height toward the peripheral edge and connected to the lower end of the tank side plate, while the upper end of the tank side plate is positioned over the upper deck surface of the vessel so that a substantial part of the tank protrudes over the said upper deck surface, and the diameter of the cylindrical storage tank is nearly equal to or greater than the height of the tank.</p> |
