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Air separation Hangyang expander

2020-04-02View Original

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May I ask the experts: when the expansion oil pump of Hangyang Air Separation is in operation and the sealing air is cut off, causing the oil pump to stop, will the lubricating oil flow back into the expansion machine’s gas chamber? Urgent! I seek guidance from experts. The interlock features an oil pump shutdown when the seal air pressure is low. The oil pump also stops due to low seal air pressure.
Reply #22020-04-02
I don’t understand why the sealing gas has to be cut off This is the biggest taboo – a pump can operate only on the premise of having sealed air. If jumping out of the vehicle is necessary for this reason, it is really necessary to consult the manufacturer; no one can guarantee that there will be no problems. It is recommended to check the blowing out at the bottom of the expander volute.
Reply #32020-04-03
An error caused the sealing gas to be turned off; the interlock system is designed such that if the pressure of the sealing gas drops below 0.03 MPa, the machine shuts down. When the sealing gas pressure is low, the oil pump stops operating. With a slight positive pressure in the oil pump, there’s no reason for lubricant to flow back
Reply #42020-04-03
There’s no reason to ask “excuse me” anymore :) If nothing goes wrong, everything is fine; if something does go wrong, it’s considered a violation. I don’t understand how one can make such mistakes. It seems that if a company wants to save money by developing its own technical capabilities, it has to pay a price for that. Speaking technically, can this seal gas interlock cause the oil pump to shut down? If not, the expander stops, but the oil pressure remains; can it be ensured that it won’t be carried in? Is protection in this regard meaningful? ? ? Let’s hear what the experts have to say :)

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