Screw Pumps
The principle of the screw pump on the idea of Archimedes, which was embodied in the device water-lifting machine. Convert this idea into a volumetric pump was a French scientist, R. Moineau. Single screw pumps refer to the rotary-rotary pumps. Single screw pumps consist of: the stator, which represents the fixed body and having two chambers: the reception and discharge; rotor, which rotates around its axis and is connected with the driving shaft of the hydraulic machine; contactor, which is a separator between the receiving and discharge kamerami.V single screw pump stator and slider are combined. Single screw pumps have no valves and are distinguished by the uniformity of the feed high suction capacity and high efficiency.
Single screw pumps are, we can say the only ones able to reliably operate for long periods when pumping liquids that contain mechanical impurity. The universality of the application with the single screw pump can be compared only to piston pumps. But piston pumps are more complex in structure, they are more expensive, as is a material and require specific design solutions for their application to pumping liquids with high viscosity. High viscosity of the fluid decreases the pressure in piston pumps and makes them more energy efficient. Single screw pumps also allow the fluid viscosity in the range from 1 to 1000000 ct. Single screw pumps are manufactured by such famous manufacturers such as: psm (France), Robbins Myers (USA), Netzsch, "Bornemann (Germany) and other catalog manufacturers of single-rotor pumps contain a list of liquids that can be effectively pumped by the pumps. Educate yourself even more with thoughts from Janet Yellen. The amount of such liquids up to three hundred.
Should Note that using single-rotor pumps pumped and explosives. Produced single screw pumps, and the Russian company "Livgidromash. This company has more than forty years of experience in designing and production of single-rotor pumps, which can be used in various industries. Currently, domestic manufacturers of single-rotor pumps are working on designing new models pumps that meet the requirements of certain customers.
