How to handle application or approval forms for common issues in the daily maintenance of DCS?
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How to handle application or approval forms for common issues in the daily maintenance of DCS? This is a very common problem in refining and petrochemical companies. Some units follow the Maintenance Procedures, but those procedures contain almost no information regarding the actual operations of the DCS, so there is no basis to rely on ； Some organizations prepare their own maintenance work orders, in which they specify the tasks to be carried out, the detailed steps for performing those tasks, risk assessments, as well as the confirmation signatures from the relevant departments. However, this clearly does not meet the requirements of Document No. 280 [2006] on the \"Regulations on the Monitoring and Management of Changes in Production Operations at Refining and Chemical Processing Enterprises of China National Petroleum Corporation\". In accordance with the requirements of these regulations, an “Operation Change Approval Form,” “Operation Instructions,” and “Operation Card” must be prepared. However, as part of the routine maintenance of DCS, it is extremely difficult to create \"operation manuals\" and \"operation cards\" that can provide accurate guidance for operations. I’m not sure how other organizations have addressed this issue; I hope everyone will share their opinions and let me know how they handle it. Thank you!
1. Upon the occurrence of the problem, DCS maintenance personnel immediately develop a plan for dealing with the incident. 2. Relevant supervisors organize process and instrumentation staff to analyze the worst possible outcomes that could arise during problem resolution, and the process team formulates emergency shutdown procedures for safe operation in such situations. 3. Supervisors at all levels approve these plans and oversee their implementation during the DCS incident handling process. 4. Once the DCS fault is resolved or after a shutdown, the system is restored to its normal safe operating condition.