What Is A Centrifugal Pump?

Centrifugal pump refers to the centrifugal force generated when the impeller rotates to transport liquid pump equipment. The basic structure of the centrifugal pump is composed of eight parts, which are: impeller, pump body, pump cover, water retaining ring, pump shaft, bearing, sealing ring, stuffing box and axial force balancing device.

The main working principle of the centrifugal pump is: before the pump starts, the pump shell and the suction tube must be filled with water, and then the motor is started so that the pump shaft drives the impeller and water to do high-speed rotating movement, and the water is thrown to the outer edge of the impeller and flows into the pressure water pipe of the pump through the flow channel of the spiral pump shell. The advantages of centrifugal pumps include compact structure, uniform flow, smooth operation, no special shock absorption foundation, and low equipment installation and maintenance costs.

Centrifugal pumps are widely used in ships. For example, in large passenger ships, freighters and other ships, centrifugal pumps are usually installed in the cabin area for transporting fresh water and seawater throughout the ship. At the same time, in some ships, multiple centrifugal pumps will be combined into a pump set to improve the efficiency and safety of water supply.

In addition, centrifugal pumps can also be used to extract and transport other liquids, such as ballast water, fuel oil, lubricating oil, etc. Therefore, in addition to passenger and cargo ships, other types of ships such as oil tankers, chemical tankers, liquefied gas ships, etc., also need to use centrifugal pumps.

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