Work steps and key operational points before resuming production
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The methanol production plant using 100,000 tons of coke oven gas has not been put into operation for 5 years since its construction; it is now set to start operating. What precautions should be taken before restarting the steam turbines and reciprocating engines, especially the steam turbines, in order to ensure a successful commissioning on the first attempt? I would appreciate any valuable suggestions from everyone. Thank you:handshake
It hasn’t been in operation for 5 years – that’s too long. Was a trial run conducted after it was built? Is the equipment protected by nitrogen padding? It is recommended to proceed with the startup in accordance with the original procedures: inspect the equipment upon opening it before startup, test the heat exchange equipment for leaks, and examine the bearing shells, seals, and rotors of large-scale units. For water interconnection and purging, let’s do it step by step
Thanks, bro. Is it just like driving the original version?
Were single-unit tests and joint tests carried out after the installation was completed? It is recommended to follow the original startup procedures step by step. In particular, pressure pipelines and pressure vessels that have been in use for 5 years are bound to be corroded. It is recommended to use instruments such as thickness gauges to inspect the pipelines, and to disassemble the manholes of pressure vessels for inspection; this work can be entrusted to agencies such as boiler inspection institutes ； Permits such as the safety production license and pollution discharge permit must be obtained properly; once the conditions for operation are met, invite the work safety supervision agency to organize experts for on-site evaluation ； Also, after it was built back then, were all kinds of materials and catalysts loaded in?