摘要 |
<p>The interior of a storage tank is filled with a storage composite and one cylindrical rib is positioned on each of the lower surface and the upper surface of partitions to project therefrom. Funnel-shaped end spacers have a large-diameter tube portion for engaging with and connecting to the cylindrical ribs on the upper and lower surfaces of the partitions, and a small-diameter tube portion having a smaller diameter than the large-diameter tube portion. Both ends of cylindrical connecting spacers engages with the small-diameter tube portion of a pair of end spacers, and the length of one side of a partition is S, the diameter of the section in which the cylindrical rib engages the large-diameter tube is set within the range of 0.40S to 0.95S. Multiple levels of horizontal connected units are provided, and end spacers and connecting spacers are interposed between the horizontal connected units of multiple levels.</p> |