Accumulator volume
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The lubrication system of the company’s air separation unit has experienced issues, as during previous switchovers of the lubrication pumps, a sharp drop in oil pressure occurred when the main pump stopped and the backup pump started; this drop in pressure fell below the interlock threshold, resulting in multiple instances of the unit shutting down due to interlocks. The specific parameters are as follows: 1. Normal operating pressure at the trip detection point of the unit: PI960: 303 Kpa ； 2. Trip pressure at the unit trip monitoring point ； PI960: 150Kpa ； 3. Pressure reporting time: 8 seconds ； 4. Lubricant volume: 2002 L ； 5. Could you all please help calculate what capacity of accumulator is required?
For the big brother model, the flow rate units are L/min, L/s, and cubic meters/h
It is recommended to post a small process for easier discussion. The problem isn’t with setting the accumulator; the key issue lies in leaks caused by the check valves in your process, as well as the adjustment problems with the pressure regulators of the two pumps. To prevent pressure drop caused by air entering due to valve leakage, oil supply connection pipes can be arranged in a cross configuration between the two pumps. It can solve your current problem.
Teacher, what does “installing oil supply connection pipes crosswise for two pumps” mean?
It’s not a teacher; it’s an old fellow. It would be best to send a flowchart so that I can give you better advice. Your question should be about a device fuel station. Or it would be better to shoot a video of a gas station so we can discuss it.