What is the cause of the intermittent evacuation by the bottom pump?
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What is the cause of the intermittent evacuation by the bottom pump?
Your question is not clear enough – which tower’s base pump are you talking about?
What tower is it? How often should one take the time to do it?
1. The liquid level at the bottom of the tower is low. 2. The operation of this tower is unstable, with the liquid level fluctuating frequently. 3. There are impurities in the filter screen, resulting in unstable dosing. 4. The pump head temperature is high, with intermittent gas formation. 5. The static head at the pump inlet is low. 6. Pump failure. 7. It is possible that the anti-vortex baffle at the bottom of the tower is damaged, resulting in vortices.
1. Clogged inlet filter screen. 2. Excessive sealing oil volume or severe water contamination. 3. Lighter composition of the oil at the bottom of the tower. 4. Faults in the pump itself
If the liquid level at the bottom of the tower is low and purge steam enters the pump, close the steam valve and vent the steam at the pump outlet. When the oil sealing system is activated, if the oil sealing pressure is too high or the oil contains water, reduce the oil sealing pressure to 1.4 MPa to remove water from the oil. If the slurry contains a high amount of water, contact the dispatch team to instruct the oil processing unit to intensify dehydration. If the preheating is inadequate, steam will be discharged from the pump body, causing it to heat up slowly.
1. Insufficient pump head or malfunction of the bottom liquid level leading to evacuation； 2. Severe water carryover at the tower bottom ； 3. The components at the bottom of the tower become lighter ； 4. The pump inlet filter is clogged.
The brother above has covered everything quite thoroughly. As a supplementary point, if the pump is equipped with an oil seal, check the amount of oil being injected into it. Heavy oil pumps are usually hot oil pumps, and their temperatures are high; as a result, the oil seal oil will vaporize. If the amount of vaporization exceeds the net positive suction head, it may lead to cavitation. Personal opinion, for reference only.