How to understand information in chemical engineering design drawings
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I study engineering technology, but I don’t understand many things related to the original design drawings in chemical engineering, such as the instrument wires and tag numbers, as well as the meanings of equipment identifiers. I hope you can recommend some books or materials on this topic
Especially the interlock aspects are really difficult to understand; it is recommended to start with the process flow diagrams, as these diagrams include explanatory notes regarding the connections involved. And symbol annotations for valves and instruments. It is best to consider the actual conditions on site first, and then study the manuals for each individual valve and valve assembly separately. That’s basically enough. It should be noted that this represents a principle of a highly comprehensive process flow diagram, and it is based on this principle. (For reference)
The first page of a design drawing usually contains various illustrations or textual annotations; understanding these first will make it much clearer when looking at the actual drawings. Secondly, it is best to gain an early understanding of the relevant processes, as this helps to achieve a deeper understanding of the workflows and designs.
It would be very helpful to study HG20519 thoroughly first.