Regarding coking, radiation pumps
Thread Content
The coking radiation feed pump has been shaking frequently lately, and the cause cannot be identified. Sometimes it shakes 4 times in 8 hours. I would appreciate some advice from experts
Coking blockage at the outlet nozzles of the pipeline or bottom of the tower； The filter is clogged.
Water in the raw material belt; the inlet filter is clogged
Is it clogged with coke? Which brand of radiation feed pump are you all using?
1. The properties of crude oil are unstable. Too light – a high proportion of light components can likely cause the radiation pump to be emptied. The ratio at the inlet of the radiation pump is better than that of domestic ones, but it’s very expensive. 2. The sealing oil contains water or has an excessively light composition. Seal more oil and cut water. 3. The pump inlet filter is a bit clogged. Try starting a side thread; it needs to be slow. 4. There is a problem with the pump itself. Cut the pump for repair.
The main reasons that may cause radiation pump evacuation are as follows: 1. Low liquid level at the bottom of the fractionation tower or false indications. 2. The radiation inlet filter is clogged. 3. The inlet pipeline of the radiation pump is blocked. 4. Insufficient sealing oil or water content causes air blockage. 5. The radiation oil being too light causes air blockage. 6. Pump failure. 7. Steam leakage at the pump inlet?
1. The liquid level in the distillation tower is too low. 2. Vapor entrainment at the inlet of the radiation pump. 3. The sealing oil contains water or is too light, resulting in a sudden increase in the amount of sealing oil used. 4. The pressure at the top of the distillation tower changes significantly suddenly. 5. Clogged filters and inlet lines. 6. Excessive changes in radiation level or large variations in the preheating temperature of the backup pump. 7. The temperature at the bottom of the distillation tower is too high, causing the oil product to become lighter suddenly. 8. Fault in the radiation pump itself.
The device designs are different. In some cases, it goes to the bottom of the distillation tower and then to the heater; in other cases, it goes to a buffer tank before reaching the heater. The phenomenon you described is most likely caused by clogging of the filter due to coke dust. You can clean the filter and see what happens