Problem of increased current in axial flow pumps
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This post was last edited by whthday on 2015-7-15 09:00. I would like to ask the experts: why does the motor current of an axial flow pump increase as the temperature of the material rises, and why does it increase so rapidly? It adjusts back soon after. Is there a direct relationship between current and temperature?
Are there no other parameter changes apart from the increase in material temperature?
As the temperature of the material rises, if its viscosity increases, it is likely the increase in viscosity that causes the rise in current. If the viscosity has not increased, it may be due to the increased temperature causing the gaps inside the pump to shrink, resulting in scraping.
Bage, is it possible that an increase in temperature has caused bubbles to form, leading to increased current due to cavitation?
Cavitation does not cause an increase in current; it usually leads to unstable current with severe fluctuations.