I just want to know! What on earth is instrument design for!
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What design! What exactly needs to be done! Selection of instruments? This isn’t design either
Determination and selection of instrument parameters, design of control schemes, design of instrument installation plans, design of materials for instrument installation, etc.
Selection of instruments? This isn’t even design; what is it then? It’s not like radishes or cabbages; you just need to make a list and go buy them on the street
Instrument parameters? Things like range, right?
Which locations require instruments, what type of instruments are needed, what material requirements apply to the instruments, what are the range and scale values, how should they be installed, and what materials are required for installation, etc. . .
. . The task of selection refers to the application design of instruments. Selection is like choosing a mate for a pig – it’s of great importance; after all, whether people across the country can enjoy meat depends on the quality of the seeds used :lol.
1. List of drawings 2. Construction design specifications 3. List of instrumentation equipment 4. List of installation materials 5. Inquiry form for ordering throttling devices 6. P&ID diagram 7. Wiring (connection) diagram of the instrumentation system 8. Diagram of signal and interlock control systems 9. Power supply system diagram 10. Front view of the instrument panel (less commonly used in DCS systems) 11. Backward wiring diagram of the instrument panel 12. Front view and backward wiring diagram of the power supply panel and relay panel 13. Layout and wiring diagram of wall-mounted instrument boxes 14. Terminal block wiring diagram 15. Diagram of external pipeline connection system 16. Layout diagram of the control console 17. Air supply system diagram 18. Layout and pipeline installation diagram of the instrument room and transmitter room 19. Pipeline installation diagram for primary components. 20. Diagram of the heat retention and heating system 21. System wiring diagram (it differs when using a DCS system; some items are no longer used in a DCS system, and it will be provided later). The DCS design consists of the following documents: 1. List of design documents 2. DCS technical specifications 3. DCS I/O table 4. Logic diagrams of interlock systems 5. Instrument circuit diagrams 6. Layout diagram of the control room 7. Terminal wiring diagram 8. Cable layout diagram of the control room 9. Instrument grounding system diagram 10. DCS monitoring data sheet 11. DCS system configuration diagram 12. Layout diagram of terminal (safety barrier) cabinets. When configuring the DCS system, the following design documents are used: 1. Video display diagram of the process flow 2. Assignment table for DCS operation groups 3. Assignment table for DCS trend groups 4. DCS production reports