The start-up operation of the fractionation tower of a small air separation unit is crucial. During the start-up operation, the logistics, temperature and pressure in the system change dramatically. Before the small air separation unit start-up operation must be completed before the preparation work.
1, in accordance with the requirements of the technical conditions for the installation of small air separation unit to test and test qualified.
2, air purification system switching mechanism is correct, the purifier regeneration is complete.
3, the air separation equipment sets of process flow diagrams and each subsystem, each machine process flow diagrams and equipment supply diagrams check and verify.
4, Check the electrical equipment, instruments and system lines, confirm the installation, adjustment, instrumentation and control, electrical lines are smooth.
5, All containers, equipment, valves, pipelines (including meter pipelines) in the cold box are thoroughly purged and warmed, and confirmed to be clean, dry, free of impurities and oil.
6, switching valve, safety valve, pressure reducing valve, throttle valve and other valve inspection and adjustment, flexible and reliable action.
7, cold boxes, pipes and other parts of the insulation material filling or wrapping fixed.
8、The pipeline of cooling water and lubricating oil system is unobstructed, no water leakage and oil leakage.
9、The instrumentation air system can provide the instrumentation system with dust-free, oil-free and dry instrumentation air at the prescribed pressure.
DEAR air separation manufacturing sets of small air separation units and large air separation units and liquid air separation plants, the team has technical research theory support for each division of small air separation units start-up, can accurately prepare for small air separation units and large air separation units and liquid air separation plants operation.
