Do skirt-supported, self-supporting metal pressure vessels with a ratio of height H to average diameter D of 5 or less fall under the category of tower-type vessels?
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Do skirt-supported, self-supporting metal containers with a ratio of height H to average diameter D of 5 or less fall under the category of tower-type containers? Is it governed by NB/T 47041-2014?
It is not within the scope of NB/T47041; when the height-to-diameter ratio is less than 5, the foundation bolts of the skirt seat are primarily subjected to shear stress rather than bending stress, meaning that bottom shear force is the main factor to be considered in calculations. However, for equipment with a height-to-diameter ratio of less than 5, the tower standards provide corresponding calculation methods, and design can be carried out by referring to these standards.
Refer to the standard design for tower-type containers; in other words, it must meet the requirements applicable to tower-type containers.