How to distinguish between pressure-bearing and non-pressure-bearing components of a boiler?
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The material requirements for pressure-bearing components are specified in the boiler regulations; how can I distinguish between pressure-bearing and non-pressure-bearing components in a boiler? Can it be seen from the drawings? Thank you
The cylinder and all nozzles are pressure-bearing elements; the supports are not, unless they are supports used to reinforce the cylinder.
Components in contact with water and steam; generally, these are shown in the boiler’s overall diagram and the steam-water system diagram
The answer above is correct; the so-called pressure is definitely caused by gases or liquids. Therefore, it can be determined by considering the range of pressurized gas or liquid media. Basically, it is shown on the boiler body diagram, and the steam-water diagram can also be referred to. I’m not sure what the purpose of this design is. If there are strength calculation documents, it would be useful to take a look at those or the summary tables, as they contain detailed information.
“Components in contact with water and steam – it’s not necessarily the case in a general boiler diagram~ What about the internal pipes? Such as internal water supply pipes, baffle plates. . . Personally, I understand that a component is considered a compressed component when there is a pressure difference between the media on its two sides.
The answer above is correct; a component is considered a compressed component when there is a pressure difference between the media on its inside and outside.