Introduction to Centrifugal Pumps

A centrifugal pump is a general-purpose mechanical device that transports liquids by utilizing the centrifugal force generated through the high-speed rotation of an impeller. It is widely used in industries such as petroleum, chemical, power generation, metallurgy, construction, and municipal water supply. The working principle is as follows: the motor drives the impeller to rotate, causing the liquid to be thrown from the center of the impeller to its outer edge by centrifugal force. This process increases both the kinetic energy and pressure energy of the liquid, which is then discharged through the pump casing and piping to the required location. Centrifugal pumps are characterized by their simple structure, compact size, smooth flow delivery, stable operation, and easy maintenance. They are capable of handling not only clean water but also various media, including slightly corrosive liquids and fluids containing small amounts of solid particles, depending on the configuration. With proper selection, centrifugal pumps can operate reliably over a wide range of flow rates and heads, making them indispensable equipment in modern industrial processes.