You must know these knowledge points about pumps!
Nov 21, 2022
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First, what is a water pump? It is a device used to transport liquid, pressurize the liquid, and make the liquid from the first liquid level to the high liquid level. The first water pump invented by the Chinese is called "water windmill". Later, around 300 BC, the emergence of the "Archimedes screw pump" is more similar to modern pumps. In addition, the following basic knowledge points are what you must understand.
1. Centrifugal pump
Centrifugal pump is the most common type of pump. In simple terms, the working principle of centrifugal pump is to rotate the impeller to drive the liquid under the action of centrifugal force. The liquid leaves the impeller and enters the volute. As the flow passage of the volute gradually expands, the fluid velocity slows down, and the pressure rises continuously, and finally it is discharged through the conduit.
2. Impeller
The impeller is one of the main components in the water pump, and it is the core component that transmits mechanical energy to the liquid. The impeller is mainly divided into three types: open type, semi-open type and closed type. The material requirements for the impeller are high, wear resistance is required, and the manufacturing process is good.
3. Cavitation
Cavitation is the formation of many tiny pits when the liquid contacts the liquid under high-speed flow and pressure, and gradually expands into caves when serious, and cavitation often occurs in the impeller and pump casing.
1. Centrifugal pump
Centrifugal pump is the most common type of pump. In simple terms, the working principle of centrifugal pump is to rotate the impeller to drive the liquid under the action of centrifugal force. The liquid leaves the impeller and enters the volute. As the flow passage of the volute gradually expands, the fluid velocity slows down, and the pressure rises continuously, and finally it is discharged through the conduit.
2. Impeller
The impeller is one of the main components in the water pump, and it is the core component that transmits mechanical energy to the liquid. The impeller is mainly divided into three types: open type, semi-open type and closed type. The material requirements for the impeller are high, wear resistance is required, and the manufacturing process is good.
3. Cavitation
Cavitation is the formation of many tiny pits when the liquid contacts the liquid under high-speed flow and pressure, and gradually expands into caves when serious, and cavitation often occurs in the impeller and pump casing.
