The feed line of the flash tower is shaking excessively; what’s the reason?
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What is an appropriate feed temperature for a flash tower? There is also water included.
This post was last edited by cn2009 on 2015-7-16 at 15:32. The main reason is the high water content in the crude oil after dehydration; therefore, the water content of this crude oil is analyzed, the electrodialysis process is adjusted to reduce its water content, and ongoing monitoring and adjustments are carried out to track any changes
Is there a pressure control valve at the inlet of the flash tower? If so, the vibration is caused by the light components downstream of the valve rapidly vaporizing. In principle, this pressure control valve should be as close as possible to the flash tower. Vapor goes directly into the tower, reducing vibrations
Has it been shaking severely all along, or did it start happening recently? This pipeline is prone to vibration
Try adjusting the processing volume; increasing or decreasing it might help reduce vibration. Vibration is usually caused by an improper flow pattern inside the pipe
Sometimes it is like this, but other times it doesn’t vibrate. If the bracket were bad, then why doesn’t it vibrate sometimes? The key is that sometimes the vibrations are so intense that it causes things to jump up; I’m worried something might go wrong
It’s better to give more consideration to the issue of raw materials; a large amount of gasification can easily cause vibration, and excessive water content after dehydration can also lead to such problems.
Try adjusting it according to the designed parameters; it’s likely that the flow pattern of the fluid inside affects the vibration frequency of the pipeline, resulting in resonance.
It is done in two steps: first, optimize desalination and dehydration to keep the water content in the crude oil after desalination as low as possible, thereby reducing the impact caused by water vaporization on the pipelines； Secondly, adjust the spring supports at various points where the material enters the initial distillation tower in accordance with the appropriate principles. If the springs are too stiff, their ability to absorb shocks is poor; if they are too soft, they fail to provide any shock-absorbing support (it is necessary to conduct a thorough inspection along the entire line). If no issues are found during the inspection, consider adding additional spring support points at the relevant critical locations during maintenance shutdowns.
The vibration problem still hasn’t been solved
Could you send over the piping layout diagram for this pipeline, so we can check if it’s a piping issue? (Please indicate the pipe diameter and flow rate.)