The support for carbon steel storage tanks has three types of saddles, ring seats and legs to support the container. The saddle support is a widely used horizontal support. From the stress analysis, the beam bearing the same load and having several shapes and dimensions of the same section is better than the two supports, because the stress caused by the multiple supports in the crucible is small. Therefore, in theory, the greater the number of supports for horizontal containers, the better.
However, in fact, the horizontal container should be designed as double support as much as possible. This is because when the number of fulcrums is more than two, the influence of each support plane such as the curvature of the container and the partial roundness and the level of the support are The unevenness of the sinking of the roots of each support, the relative rigidity of the different parts of the container against partial cross-section, etc., all affect the market of the reaction force of the support. Therefore, the choice of multi-seat not only does not show the theoretical superiority but will result in the addition of uneven force on the container, which will affect the operation safety of carbon steel storage tanks. Therefore, a horizontal container holder should not be more than two general conditions. The ring seat is generally for large diameter thin walls.
The leg support is referred to as the leg. Because the support will form serious partial stress at the joint with the container wall, it is only suitable for small equipment (DN1600, L≤5m). In summary, consider the selection of two saddle supports as the support for the tank.