High-flow centrifugal pump for low-flow delivery
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I would like to ask the experts: For a high-flow centrifugal pump (500 m3/h, H=60 m), it is required that the flow rate during actual operation be kept below 127 m3/h, without significant effects on the head pressure. How can this be achieved?
A flow meter FT is installed on the main line, and an automatic valve FV is installed on the bypass. Set FIC to 127; any excess traffic will naturally be bypassed.
Switch to a different pump; if used for a long time, its energy consumption is too high
Based on the characteristics of centrifugal pumps, if the liquid medium permits it, such as water. Just turn down the outlet valve to the flow rate you need. But be careful: if the pump body overheats too much, it will be necessary to establish a circulation process. For reference.
For long-term use, it is recommended to replace the motor with an inverter-driven motor or to machine the impeller.
For long-term use, it is employed in loading finished gasoline into vehicles, enabling quantitative control during vehicle loading!
This post was last edited by Asuka Sky on 2021-4-8 at 08:24. It is used for long-term use in loading gasoline into finished vehicles; the vehicle loading system employs a card-based system for quantitative filling. HGT 21608-2012 Technical Requirements for Liquid Loading and Unloading Arms specifies that the flow rate of flammable liquids should be kept below 4.5 m/s; since the gasoline loading nozzle has a diameter of DN100, the flow rate must be maintained below 127 m3/h to avoid exceeding this limit.
It is used for loading finished gasoline into vehicles, and the vehicle loading system employs a card-based system for quantitative loading. HGT 21608-2012 Technical Requirements for Liquid Loading and Unloading Arms specifies that the flow rate of flammable liquids should be kept below 4.5 m/s; since the gasoline loading nozzle has a diameter of DN100, the flow rate must be maintained below 127 m3/h to avoid exceeding this limit. The pump is the one from the original process; it was used to load gasoline onto trains, and now it is intended to be reused for loading gasoline into cars.
This post was last edited by Asuka sky on 2021-4-8 09:03, changing it to an inverter-driven motor; still, the flow rate will gradually reach 500 m3/h. If the impeller is cut, will the pump’s head drop by a factor of two squared?