Cavitation problem of low-boiling-point solutions pumped by self-priming pumps in summer
Thread Content
We are currently using a self-priming pump to draw up acetyl chloride; sometimes it is not possible to draw liquid in the summer. The height of the pump cannot be changed at present. Can cavitation be prevented by placing the solution tank above the pump? Or using a low-diameter inhalation tube (an external nozzle) – will there be any negative effects?
The measures include: 1. Increase the height of the solution tank； 2. Increase the diameter of the inlet pipe ； 3. Is there a way to increase the pressure in the gas phase space of the solution tank? It’s better to do some calculations before making modifications: https://bbs.hcbbs.com/thread-1764877-1-1.html
Modify the pump by using an impeller with an inducer wheel
The measures include: 1. Increasing the height of the solution tank and switching to a backflow system； 2. Reduce the inlet pipe diameter and length ； 3. Increase import pressure to lower the material temperature.
Place the acetyl chloride in a cold room, lower the temperature to winter levels, and then remove it after that.