Centrifugal pump problems
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This post was last edited by Xiaomuchong11 on 2017-2-19 at 13:28. If the capacity of the on-site installation is increased to 1.5 times its previous level, while the operating pressure at the tower where the pump delivers fluid remains unchanged, then both the flow rate and head of the pump meet the requirements resulting from this increase in capacity. How can we determine whether the motor is capable of meeting these requirements, or in other words, how can we tell if the motor is operating properly? Will the current increase over prolonged operation, which could lead to tripping or damaging the motor? Thank you
Moreover, in my opinion, although the flow rate and head meet the requirements, the operating point of the pump is certainly far from its optimal operating point
It can be determined by measuring the current in the power distribution room during pumping.
Pay special attention to the motor current and motor temperature when the pump is in operation. Within the rated current range, there are generally no major issues.
Agreed; in some companies, voltage overpressure is a serious issue that affects the operation of equipment under high loads.
The capacity has been increased by 1.5 times, and the pump’s head and flow rate still meet the requirements. Why was such a large margin chosen when selecting the pump?
This post was last edited by Xiao Mù Chóng 11 on 2017-2-19 at 18:03. Okay, thank you. The operation has already started with the increased capacity; it shouldn’t make much difference if the pump isn’t operated at its optimal settings, right? I’m too lazy to go and ask the manufacturer for calculations; I gave them the increased flow rate and head requirements, and the response was that both the pump and the motor need to be replaced.
Impossible, right? With a 1.5-fold increase in volume, will the pump’s flow rate still meet the requirements? So how much head did your pump originally need to have?
Can the number of pumps be increased? Or consider adding a small pump to improve energy efficiency