A beginner seeks advice on drawing process flow diagrams
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I have just started learning *CAD and want to use it to draw PID and PFD diagrams. Could you please tell me what the basic sequence for drawing such diagrams is? Is it to draw all the equipment first and then add the pipelines? There are also issues that need to be taken into account during the process. Thank you
First, you need to understand the diagram you are drawing； Then, according to the specifications, understand the representation methods for the equipment, valves, and special components you need to draw ； After that, you can get ready to draw in CAD. Get the equipment in place and draw the main pipelines first; then adjust the drawings according to your current situation and add the secondary pipelines, and that’s pretty much it.
First, look at the homepage image; understand the way in which fittings and pipes are represented, and then arrange the equipment and add the main pipelines. Finally, draw the branch pipes and electrical control pipelines; the drawing method for the electrical control pipelines should also follow the specifications in the diagram on the first page. Practicing CAD leads to proficiency over time; by gradually figuring out the drawing techniques, one can work faster. Everyone has their own preferred methods, so I wish you success in learning it soon.
Each unit has its own set of rules; you can adapt as you learn. Ask more people around you
Before drawing, a sketch should be prepared, including the approximate location of the equipment and the route of the pipelines; one should have a clear idea of how everything should be arranged. Don’t think it’s a hassle – just follow the standards and specifications once the sketch is ready
Same as the 4th floor; according to the unit’s regulations, there should be a certain pattern