csigaszivattyú

The "csigaszivattyú," also known as a screw pump or Archimedes screw pump, is a simple yet effective positive displacement pump. It operates by using a helical screw rotating within a stationary casing. As the screw rotates, it traps a volume of fluid in the spaces between the screw thread and the casing. This trapped fluid is then conveyed along the length of the screw from the inlet to the outlet.

The design is based on the ancient Archimedes' screw, which was originally used for lifting water. Modern csigaszivattyú designs are employed in a variety of applications, including sewage treatment, irrigation, and industrial processes where viscous fluids or solids in suspension need to be moved. The flow rate of a csigaszivattyú is directly proportional to its rotational speed and the pitch and diameter of the screw.

Advantages of csigaszivattyú include their ability to handle solids and sludges without clogging, their gentle pumping action which minimizes shear on the fluid, and their relatively simple construction and maintenance. They are known for their robustness and reliability. The efficiency of a csigaszivattyú can be affected by factors such as the screw's angle, the clearance between the screw and the casing, and the fluid viscosity. They are typically driven by an electric motor or other power source.