Process Section – Daily Hydrogenation Process Knowledge Question No. 045
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What are the basic performance parameters of a centrifugal pump? Answer: Flow rate, head, efficiency, shaft power, the net positive suction head required by the pump, and the suction vacuum level.
Flow rate, head, efficiency, shaft power
The main performance parameters of a pump are: (1) head. The energy obtained per unit mass of liquid after passing through the pump is denoted by H, with the unit being m. (2) Traffic. The amount of fluid delivered by the pump per unit time includes volumetric flow rate Q, measured in m3/s, and mass flow rate G, measured in kg/s. (3) Rotational speed. The number of revolutions per minute of the pump, denoted by n, is in units of r/min. (4) Shaft power. The power transmitted from the prime mover to the pump shaft is denoted by P, with the unit being kW. (5) Efficiency. The ratio of the useful power of the pump to its shaft power is denoted by η. It is an indicator that measures the hydraulic perfection of a pump.
Head, flow rate, speed, shaft power, efficiency,
Flow rate Q, head H, efficiency, shaft power N
Flow rate, head, efficiency, shaft power
Flow rate, head, efficiency, shaft power, net positive suction head required by the pump, and suction vacuum level
Flow rate, head, efficiency, shaft power
Flow rate, head, power, efficiency, etc
Flow rate, head, efficiency, shaft power, net positive suction head required by the pump, and suction vacuum level
Flow rate, head, efficiency, shaft power, speed, etc