There are several types of water pumps according to the working principle and structure

Category: Water pump knowledge

2024-05-25

A water pump is a mechanical device used to move liquid from one place to another. They are widely used in various fields, such as construction, agriculture, industry and household use. According to its working principle and structure, water pumps can be divided into the following types.

Centrifugal pump

The centrifugal pump is a common water pump. Its working principle is to suck the liquid from the suction port through centrifugal force, and then generate the centrifugal force by the rotation of the rotor, thereby outputting the liquid from the outlet. The centrifugal pump has the characteristics of simple structure, high efficiency, energy saving, stable operation and low noise, and is suitable for conveying water purification or clean liquid.

self-priming pump

It is a kind of pump with both suction capacity and discharge capacity. The self-priming pump can quickly inhale water and discharge the air in the water within a period of time, so as not to have a negative impact on the operation of the pump. Self-priming pumps are suitable for conveying media containing a small amount of solid particles or long fiber materials, and are suitable for families, rural areas, factories, mines and other fields.

axial flow pump

Axial flow pump is a liquid flow direction parallel to the axis of the pump, suitable for conveying water, sewage, chemical liquids and other large flow, low lift occasions, such as drainage, sewage and farmland irrigation. Commonly used in rivers, lakes, reservoirs drainage and irrigation projects.

deep well pump

Deep well pump can take water or lift water in deep wells, suitable for deep well water intake, water source lifting, irrigation, etc., common in agriculture, industry and civil fields

plunger pump

The plunger pump draws and discharges liquid through the up and down movement of the plunger. Suitable for conveying high viscosity liquid, chemical liquid and other high pressure, low flow occasions, such as high pressure cleaning, spraying and so on. Commonly used in high pressure cleaning, petrochemical, metallurgy, pharmaceutical and food and other fields.

screw pump

The working principle of the screw pump is to enter the liquid from the suction port into the pump through the rotary motion of the screw, and then transport the liquid to the outlet through the propulsion motion of the screw. The screw pump is suitable for conveying high viscosity media, such as paste, syrup, honey, etc., with strong conveying capacity, stable flow and long conveying distance. But the screw pump is not suitable for conveying the medium with more particles, which is easy to cause the pump type to be blocked.

mixed flow pump

The structure of mixed flow pump is similar to centrifugal pump and axial flow pump, and its working process is to transport liquid through the resultant force of centrifugal force and axial force. Mixed flow pump suitable for conveying large flow, low lift clean liquid. Due to its special flow/head performance, mixed flow pumps can replace some axial flow pumps and centrifugal pumps in large-diameter applications.

submerged pump

Mainly used for drainage and sewage treatment. This type of pump is usually completely immersed in the liquid, so there is no need for a suction tube. Moreover, immersion pumps are more suitable than other pumps for transporting liquids containing large particulate matter. The impeller of this pump is directly installed on the motor shaft, and the water pump is driven by the rotation of the motor.

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