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I am a beginner and would like to ask the seniors whether it is useful to study PFD and PID. How will it be helpful for the subsequent design work? How deep should the research be? Thank you!
Reply to 1# Mengjing looks at the process flow chart to understand the correlation of the entire process you designed. A process is a whole, and all work sections are interconnected. Only if you are familiar with the process can you be better able to do specific work in the future.
The PFD diagram in process design is the most basic and important work of the entire chemical engineering project. It is an important part of engineering design and the main basis for the work of all relevant majors in engineering design. Based on the PFD drawings, the process control chart (PC chart or PCD), material balance sheet, and working conditions and instructions required for the process operation are developed to design the pipeline instrument flow chart (referred to as PI chart or MID) of the chemical process production device to meet the operation and safety needs of normal production, start-up and shutdown, and accident situations. Pipeline instrument flow diagram PID uses uniformly prescribed graphical symbols and text codes to graphically combine all the equipment, instruments, pipes, valves and main pipe fittings required to establish a chemical process device according to their respective functions to meet process requirements, safety and economic purposes, so as to describe the structure and function of the process device. It is not only the basis for design and construction, but also part of the complete technical data required for business management, commissioning, operation, maintenance, start-up and shutdown, etc. Piping and instrumentation flow diagrams help simplify the exchange of information between the various departments tasked with the development, engineering, construction, operation, and maintenance of the process unit.
General floor plan - process flow diagram (pid) - equipment plan and elevation layout, electrical part drawings, public engineering related drawings, - equipment drawings
Only if you are familiar with the process flow diagram can you understand the corresponding equipment layout diagram and piping diagram. Personal opinion.
In engineering construction, process flow diagrams are the basis of each diagram.