Cavitation in hot oil pumps
Thread Content
This post was last edited by tianyewei on 2018-7-12 at 10:08. 3.jpg The hot oil pump developed cavitation due to water contamination in the heat transfer oil, which resulted from a leak in the heat exchanger. Due to process constraints, it was not possible to shut down for maintenance, so it operated for an extra period of time; after being taken apart, it became unusable. 1. Volute 2. Front side of impeller 3. Side side of impeller
Looking at the images of the impeller, it seems to be outlet backflow cavitation; the damage to the inlet blades is not severe
Learned*: victory:
It’s pretty tragic – even the mouth ring has holes in it
Generally, heat transfer oil in hot oil pumps comes with dehydration measures – don’t you have any such measures?