Centrifugal Pumps Develop pressure by increasing the velocity of the liquid Liquid is literally flung out of the cutwater. A centrifugal pump is a rotodynamic pump that uses a rotating impeller to increase the pressure and flow rate of a fluid (Friedrichs and Kosyn 2000; Gulich 2008). Centrifugal pump are most common type of pump used to move liquids through a piping system.
Work done in one upstroke is w*a*1*h, where ‘h’ is the total height through which the water is raise m. Rotary Pumps : In this type of pump , the reciprocating motion is substituted by the rotary motion. The rotary motion is achieved by cams or by gears. There are two cams or gears which fit with each other. They rotate in opposite directions. These types pumps used for the application of sewage, sludge, scum, clarifier thickener underflow.
It can be applied for transfer and for metering service. Such pumps are available in single- and multi cylinder models. Diaphragm pumps : These type of pumps are quite versatile, handling a wide variety of fluids like food additives , chemicals , dry powders , slurries , pharmaceutical products, and wastewater etc. In this presentation an overview of the operating principles and of the characteristics of these pumps will be given. The rules for combining several mechanical pumps to build a roughing station will then be reviewed together with considerations on the control system and the operation of these types of pumps in accelerator vacuum systems.
Request PDF Pump types A small, electrically powered pump A large, electrically driven pump (electropump) for waterworks near the Hengsteysee, Germany. Screw pumps are the only type of pumps which are different from other rotary displacement pumps because of the axial flow of the fluid through their pumping elements. The fluid in screw pumps moves between the screw threads and is displaced axially as the screws rotate and mesh. As the name suggeste air-operated diaphragm pumps (aka AOD pumps or AODD pumps ) are powered solely by air making them suitable for dangerous and tough environments.
They are also used for chemical transfer, de-watering underground coal mines, food manufacturing or where the liquid being pumped has a high solids content or high viscosity. Oct 0 20 Reciprocating Pump In Reciprocating pumps , the chamber is a stationary cylinder that contains a piston or plunger. Power consumption is low. Apr 2 20 Centrifugal Pump Working Principle : Works on the principle of centrifugal force.
Piston Pump (double acting) B C A D 7. This is the force that pushes the liquid away from the centre(in tangential direction). Converting Prime Mover energy into Mechanical energy through shaft.
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