How to operate DCS during startup and shutdown?
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I have basically mastered the process. I would like to learn some skills related to DCS operation; I hope that those who are experienced in this area can share their insights. Thank you very much
DCS operations mainly involve the control of flow rate, pressure, temperature, and liquid level； Control modes include manual, automatic, cascade, interlock, as well as the selection of control parameters ； After becoming familiar with it, the next step is to set the instrument PID ； After learning the procedures and getting familiar with the site, study the operating rules and do your outdoor tasks well. There’s no need to rush; finish the outdoor tasks first, and then think about the indoor ones!
First, get familiar with the process; become a qualified field operator before moving on to be an indoor operator. . . . Only after gaining experience can one decide when to start or stop operations
First of all, you shouldn’t start working on the actual operations just because you’ve learned the basic procedures; that would be irresponsible of you. Catalytic cracking is a complex process, so I hope you’ll put in more effort. My personal opinions are as follows, for reference only: 1. One must be thoroughly familiar with the on-site procedures; the locations of all valves need to be memorized, as well as the positions of all instruments. Theoretical knowledge also needs to be strengthened. 2. One should learn all the tasks related to external operations. 3. One must be able to recall the corresponding on-site locations for all processes and instrument tags shown on the DCS screen. 4. It is essential to have a clear understanding of the adjustment methods for all key control points, as well as their interrelated influences and ways to identify abnormal conditions. 5. Under the guidance of a supervisor, one should get familiar with the internal operation environment, mainly to develop a sense for it. 6. Handling abnormal situations relies on accumulating experience; therefore, there’s no point in rushing – ask questions frequently! ! !
Reply to 4# gaoyd: Thank you all, teachers. I’ve been at the factory for a year now, and I’d like to get a general understanding of DCS