Impelleripohjaiset

Impelleripohjaiset refers to a classification of pumps that utilize an impeller to impart kinetic energy to a fluid, which is then converted into pressure energy. These pumps are a type of centrifugal pump, characterized by a rotating component, the impeller, with vanes or blades. As the impeller spins, it draws fluid into its center and then expels it radially outward. The centrifugal force generated by the rotation accelerates the fluid, increasing its velocity and kinetic energy. This high-velocity fluid then enters the pump casing, which is designed to slow down the fluid and convert its kinetic energy into potential energy in the form of pressure.

The design of the impeller is crucial to the performance of an impeller-based pump. Impellers can vary in type, including open, semi-open, and closed designs, each suited for different fluid properties and applications. Open impellers have no casing around the vanes and are often used for fluids with solids. Semi-open impellers have a shroud on one side, while closed impellers have shrouds on both sides, offering better efficiency for clean liquids. The number, shape, and angle of the impeller vanes also influence the pump's head and flow characteristics.

Impeller-based pumps are widely used in various industries due to their reliability, simplicity, and efficiency in moving large volumes of liquid. Applications range from domestic water supply and irrigation to industrial processes, chemical transfer, and wastewater management. Their ability to handle a wide range of viscosities and flow rates makes them a versatile choice for many fluid handling challenges.