内浮顶油罐浮盘降落到罐底时靠若干个支柱来支撑。其支撑高度有两个:一个是浮盘的最低位置,另一个是检修时的浮盘高度。为了有效地利用油罐容积,前者不大于900mm,后者不小于1800mm,以便于检修。作为内浮顶其支柱不能伸出浮盘上空过高(以防支柱与拱顶碰撞的事故发生),因此,将支柱设计成滑动的。浮盘漂浮状态时, Floating roof tank floating to the tank bottom by a number of pillars to support. The support height of two: one is the lowest position of the floating tray, and the other is the maintenance of floating height. In order to effectively use the tank volume, the former is not more than 900mm, which is not less than 1800mm, in order to facilitate maintenance. As the inner roof of the pillars can not be extended over the floating disk too high (to prevent the collision with the pillars of the crown occurred), therefore, the pillar designed to slide. Floating floating state,