The differential pressure between sour gas and lube oil in a H2 expander remains a low value. It causes the spare lube oil pump start several times a day. When I decrease the sour gas pressure, the lube oil pressure located in upstream of bearing also become lower. I just want to increase the differential pressure. I have done some jobs.
1.Check the strainer in the inlet of lube oil pump.
2.Increase the pressure set point on the relief valve.
3.Increase the inlet pressure of lube oil pump.
All these jobs did not do a help to increase the diff. pressure.
Could you tell me what the problem is in this expander?
Thanks a lot for your help.
1.Check the strainer in the inlet of lube oil pump.
2.Increase the pressure set point on the relief valve.
3.Increase the inlet pressure of lube oil pump.
All these jobs did not do a help to increase the diff. pressure.
Could you tell me what the problem is in this expander?
Thanks a lot for your help.
