Why does a gasoline pump run dry when there is water in it?
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Why does a standby pump draw air when there is water in it?
The problem description is not precise: what kind of device is it, a gasoline pump? What is the process flow and the parameters of the medium? Under what conditions is evacuation carried out?
After the temperature rises, since the boiling point of water is much lower than that of gasoline, the water vaporizes. The gas that accumulates at the center of the volute impeller cannot be discharged, resulting in gas locking and the pump failing to draw in any fluid
Why does water in liquefied gas easily cause pump cavitation? https://bbs.hcbbs.com/thread-898918-1-1.html (Source: Haichuan Chemical Industry Forum) Please take a look at this
Catalytic cracking, crude gasoline pump, temperature around 40 degrees
This post was last edited by foam_ZPTK on 2018-12-24 20:58. Is it only the standby pump that is used to evacuate? If it’s just the standby pump that gets emptied, then it’s a problem with the pump itself or with the inlet piping of the standby pump; for example, if the inlet filter is clogged
It is strictly prohibited to operate the crude gasoline pump with water present; if water enters the pump, it will be carried back with the flow. This leads to significant fluctuations in the temperature and pressure at the top of the distillation tower, and in severe cases, it can cause overpressure in the tower as well as issues with the dry point of the crude gasoline, making it unsuitable for use； 2. Water carried by the crude steam pump leads to acidic water entering the absorption tower, causing fluctuations in the operation of the absorption tower and severely affecting subsequent processes. Reasons for water in the crude gasoline pump: The oil-water level in the tower top reflux tank is too high or fluctuates significantly, and the level gauge of the reflux tank shows incorrect readings ； Excessive water injection at the tower top, internal leakage in the tower top condenser, etc. Therefore, in such a situation, what needs to be done urgently is to identify the cause of the water presence and address it right away; water must not be allowed to be present!