A centrifugal pump is used to pump liquids and operates using centrifugal force..
Construction
Rotor (1) (usually with a horizontal axis of rotation) located in a spiral housing (2). Fluid influx (3) axial, and outflow (4) radial.
What are centrifugal pumps?
Centrifugal pumps are the most common pumps. The lifting height of such pumps is up to 150 m. Performance, depending on rotor size ranges from a few centimeters per minute for miniature pumps , to 7000 m3/h in industrial installations.
When using multistage pumps, lifting heights of up to several kilometers can be achieved., which allows the use of such pumps in mine drainage systems or when pumping oil, where the pump is placed at the bottom of the wells. Also rotor design and material, from which it is made, may be different. Miniature pumps are made entirely of plastic, central pumps for pumping suspensions, sludge or aggressive liquids are equipped, usually, rubber sealing rings.
The energy efficiency of a centrifugal pump ranges from η=0.65 for small pumps, up to η=0.89 for large pumps. For a design, efficiency can be calculated as the product of flow (eg, 100 liters per minute) and pressure produced (eg, 20 there is), divide by power (e.g., 13 KM).
