Centrifugal pump

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Centrifugal pump - Centrifugal centrifugal swirl pump and single or spatial curvature of the blades.

The rotor (1) (usually with a horizontal axis of rotation) is located in the spiral body (2). Liquid feed (3) is axial and radial drain (4). The flow of liquid through the rotor is radial. Centrifugal pump

Centrifugal pumps are the most commonly used pumps. The lifting capacity of these pumps is up to 150 m. Depending on the size of the rotor, they range from a few centimeters per minute for miniature pumps up to 7,000 m³ per hour in industrial installations. With multi-stage pumps, lifting heights up to several kilometers can be achieved, which allows the use of such pumps in dewatering plants or pumping oil where the pumps are positioned at the bottom of the wells. Also, the rotor construction and the material from which it is made may vary. Miniature pumps are made entirely of plastic. Pumps for slurry, slurry or aggressive liquids are usually fitted with rubber rotors.

The energy efficiency of the centrifugal pump is in the range of η = 0.65 for small pumps up to η = 0.89 for large pumps. For a given design the efficiency can be calculated as the product of flow (eg 100 liters per minute) and produced pressure (eg 20 bar) divided by the power demand (eg 13 HP).

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