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Seeking help in analyzing on-site operation issues

2008-03-01View Original

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Such a phenomenon has occurred in our workshop during the operation of the rectification tower: there is no steam pressure indication on the reboiler, but the flow rate is over 1,000. Condensate is discharged from the steam-water separator. Both the remote and on-site pressure gauges are working properly, yet the steam pressure appears intermittently. The curve of the tower’s performance remains the same as during normal operation, with no changes. It should also be noted that the steam pressure entering the system remains stable. ] This post was last edited by DAC The army rules the world on 2008-3-3 01:37
Reply #22008-03-01
1] There is a problem with the instrument. 2] The steam consumption of the reboiler is low (less heat is required), but the control valves you have chosen are too large, making it difficult to control it properly.
Reply #32008-03-02
There is an issue with the pressure display; it is recommended to contact the instrumentation technician to calibrate it
Reply #42008-03-02
Try using a different pressure gauge; there’s something wrong with the current one
Reply #52008-03-02
It’s a problem with the instrument; if there was no pressure, the distillation process would have stopped long ago. Please calibrate or replace the instrument
Reply #62008-03-02
Thank you all. I found the answer while working the night shift at midnight today```
Reply #72008-03-02
The original poster should tell everyone whether the reason they found it is the one that everyone analyzed! Only in this way can we live up to everyone’s enthusiastic “contributions”!
Reply #82008-03-02
The reboiler has liquid in it; there is a problem with the instruments.
Reply #92008-03-03
Well, `although my wealth was deducted, I still need to figure things out.` When the technician installed the remote pressure gauge, the white steel pipe ran upward; moreover, a protective oil cooler was also installed, which functioned as a kind of liquid seal. As steam remained in the pipe for an extended period, condensate water formed inside, and the location of the pressure gauge on site happened to be below the water level. So the gauge doesn’t give any indication – that’s how I understand it. I’m not sure if everyone agrees```
Reply #102008-03-03
The original poster did well in the end, providing a resolution to the issue, which is appropriate in light of everyone’s contributions to analyzing and solving the problem. :lol
Reply #112008-03-05
It seems the installation location of the pressure gauge on site needs to be adjusted

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