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Oil, gas and petrochemical process industries


    Types of Process Diagrams

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    Talib Al_Munawri
    Director-General
    Director-General

    Posts : 337
    Join date : 2009-07-03
    Age : 30
    Location : Sultanate of Oman

    Types of Process Diagrams

    Post by Talib Al_Munawri on Sun Sep 27, 2009 1:38 am

    Types of Process Diagrams



    Process diagrams can be broken down into two major categories:

    process flow diagrams (PFDs) and process and instrument drawings (P&IDs), sometimes called piping and instrumentation drawings.


    A flow diagram is a simple illustration that uses process symbols
    to describe the primary flow path through a unit. A process
    flow diagram provides a quick snapshot of the operating unit.

    Flow diagrams include all primary equipment and flows.
    A technician can use this document to trace the primary flow
    of chemicals through the unit. Secondary or minor flows are not included.

    Complex control loops and instrumentation are not included. The flow
    diagram is used for visitor information and new employee training.



    A process and instrument drawing is more complex. The P&ID includes a
    graphic representation of the equipment, piping, and instrumentation. Modern process control can be clearly inserted into the drawing to provide a process technician with a complete picture of electronic and instrument systems.

    Process operators can look at their process and see how the engineering department has automated the unit. Pressure, temperature, flow, and level control loops are all included on the unit P&ID.

    Aalia al zadjali
    Member
    Member

    Posts : 3
    Join date : 2011-04-23
    Age : 30

    Re: Types of Process Diagrams

    Post by Aalia al zadjali on Sat Apr 23, 2011 12:21 am

    will thanks 4 those information
    but could u tell us which programme is the best for drawing the process diagrame

      Current date/time is Mon Sep 25, 2017 2:53 pm