Independent and non-independent operation of jacketed vessels
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GB/T150.3-2024 specifies two scenarios for the pressure test of jacketed vessels: one where both the jacket and the inner vessel are designed as independently operating vessels, and the other where they are designed as non-independently operating vessels. Which scenario corresponds to a design for independently operating vessels, and which one to a design for non-independently operating vessels?
The design of independently operating containers means that both the jacket and the inner container can withstand pressure separately; in other words, each component is designed to have its own independent pressure-bearing capacity, allowing for pressure testing to be conducted on them individually. The design of containers that are not operated independently refers to the situation where the jacket and the inner container work together as a single unit to withstand pressure; it is not necessary to conduct pressure tests on each component separately, as the structural integrity and safety are assessed as a whole. .
Just ask the designers; design specifications must be reflected in the drawings, and technical requirements should also be noted, otherwise accidents involving collapsed containers are all too common.
A properly designed structure must be able to withstand pressure separately.
In other words, are most of them containers designed with both the jacket and inner container operating independently?
Could you provide some drawings to explain it? That would make it easier to understand. Thank you!