Centrifugal pumps are mainly used for pumping water in industries. Centrifugal pumps move liquids with the help of kinetic energy that is stored in the motor. Although the main function of the centrifugal pump is to move water and causes the liquid to flow, centrifugal pumps are also used in manufacturing plants, water treatment plants, food processing plants, chemical and petroleum industries.
Working principle of Centrifugal Pump
The heart of the system is the impeller, the impeller is always immersed in the water when impeller rotates, the fluid (water) surrounding it also rotates. This provides centrifugal force to the water particles, and water moves radially out, so at the discharge side, the rotational mechanical energy will be transferred to the water or fluid, this will result in the rise of the Pressure and velocity of water, and a negative pressure will be induced at the suction side, so the system will suck the fresh water to fulfil this pressure requirement on the suction side and this process continues.
A centrifugal pump containing two or more impellers is known as the multistage centrifugal pump.
Centrifugal pumps are used to transport fluids by the conversion of rotational kinetic energy to the hydrodynamic energy of the fluid flow. A centrifugal pump is a machine that uses rotation to impart velocity to a liquid and then converts that velocity into flow.
The inbuilt rotating impeller is the main rotating part used for pumping liquids without any complications. It provides centrifugal acceleration to the fluids.
Impellers are of the following types
Semi-open or vortex type
In the closed impellers, lots of maintenance is required. The open and the semi-open types of impellers do not have the clogging problem but usually, need manual adjustment.
The shaft is another important rotating component. The basic purpose of using shaft is to transmit the torque that is encountered during operation. The shaft also supports the impeller and other rotating parts.
The volute or diffuser along with casing, casing cover, and bearings form the stationary parts of the centrifugal pump and are responsible for converting the kinetic energy into pressure energy. These pumps have two types of casings: volute and circular. Volute casings help to balance the hydraulic pressure created on the shaft of the pump while the circular casings are used for high capacity. Even the bearings are very useful components in the centrifugal pumps.
All these various components when put together and when they cooperate well with each other, the centrifugal pump achieve a great performance.
the stationary parts of the centrifugal pump are made with the volute or diffuser along with casing, casing cover, and bearings. Stationary parts of the centrifugal pump are responsible for converting the kinetic energy into pressure energy. The casing of centrifugal pumps is of two types volute and circular.
Volute casings help to balance the hydraulic pressure created on the shaft of the pump. The circular casings are used for high capacity.
The bearings are also very useful components in the centrifugal pumps.
Centrifugal pumps achieve a great performance when all these various components put together and work with each other.
Before buying a centrifugal pump, you need to carry out some research and look for companies that offer good after-sales services. You must always buy a good quality pump with superior components that will withstand the test of time.
Applications of Centrifugal Pumps:
Centrifugal pumps are used in many applications and across many industries. Some of the industrial and other applications are listed below.
Power plants, refineries, oil and energy companies
Pressure boosting, air conditioning, heating and ventilation, fire protection sprinkler systems.
Sugar industries, chemicals and pharmaceuticals, food and beverages etc
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