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Reasons for surge in the vacuum pump of the vacuum distillation tower

2017-08-19View Original

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The plant is a small facility with a capacity of 2.3 million tons, and the vacuum pump in the vacuum distillation tower sometimes experiences surging. What is the reason?
Reply #22017-08-19
The reasons for steam pressure fluctuations, I guess.
Reply #32017-08-19
It shouldn’t be; the pressure and flow rate were both quite stable at that time. But there’s a phenomenon where the oil becomes too heavy! If there is less gas at the top of the tower, will that have an impact on it?
Reply #42017-08-19
In the vacuum furnace, an increase in the amount of gas generated during cracking occurs; a lower amount of gas has no impact.
Reply #52017-08-20
What is the vacuum level? The volume of air is low, preventing proper pumping; this can cause vibration in the water ring vacuum pump.
Reply #62017-08-21
That must be the reason. The flow rate of the inhaled gas decreases, which results in lower inhalation pressure; the exhaust pressure also drops a bit. At this time, the temperature of the cooling water is at its highest, and poor exhaust flow leads to backflow, thereby causing surging!
Reply #72017-08-21
That must be the reason. The flow rate of the inhaled gas decreases, which results in lower inhalation pressure; the exhaust pressure also drops a bit. At this time, the temperature of the cooling water is at its highest, and poor exhaust flow leads to backflow, thereby causing surging!
Reply #82017-08-21
That must be the reason. The flow rate of the inhaled gas decreases, which results in lower inhalation pressure; the exhaust pressure also drops a bit. At this time, the temperature of the cooling water is at its highest, and poor exhaust flow leads to backflow, thereby causing surging!
Reply #92017-09-01
The steam pressure is low! Shock waves cannot be formed at the throat area, hence surging occurs.
Reply #102017-09-03
1. The atmospheric pressure section was not cleaned thoroughly, resulting in an excess of diesel components in Line 1. 2. Fluctuations in steam pressure and steam power. 3. The temperature of the vacuum furnace is too high or experiences significant fluctuations. 4. Is the pressure and flow rate of the stripping steam at the bottom of the vacuum tower normal? 5. Check the temperature of the circulating water; it is currently summer and the ambient temperature is high, resulting in poor cooling efficiency of the circulating water.

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