| 摘要 |
PURPOSE:To reduce deformation due to thermal contraction or the like and display a merit of concrete make to the maximum level, by separately containing a concrete made inner tank in an outer tank and suspending in the tank a piping equipment or the like performing acceptance of fluid and its delivery. CONSTITUTION:A superlow temperature storage tank of double-shell made of concrete is constituted by each separately formed two sealed units of inner tank 1 and outer tank 2. The inner tank 1 provides in the center of its roof 11 an opening part 12 to be opened for suspending in the inner tank 1 a piping equipment A for accepting and delivering fluid and an elevation staircase equipment for inspection. The outer tank 2 is also made of concrete, and the tank 2 provides in the center of its roof 21 an opening 22 to be opened for disclosing the piping A or the like to the outside. And the outer tank 2, inserting a cover 3 fixing the piping A or the like into said opening 22 and loading a slide surface 34 of a vertical plate 33 in the inner cover 3 on a horizontal supporting surface 24, suspends the piping A or the like in a condition that its deformation in the horizontal direction is permitted. |
