What is a water pump?

There are many types of pumps. In principle, it can be divided into a pneumatic pump, a centrifugal pump, an axial flow pump, a mixed flow pump, a screw pump and the like. The most used is the centrifugal pump.

The air pump raises the water level by atmospheric pressure. By virtue of what pump is used to move the piston, an approximate vacuum is created and the external atmospheric pressure presses the water up. This type of pump relies on atmospheric pressure, so the height of the lift water is limited.

The principle of a centrifugal pump is centrifugation. According to what brand pump is used to generate centrifugal force by the rotation of the impeller blades, the liquid is pumped out. Therefore, the conveying effect depends on factors such as the rotational speed and diameter of the impeller.

The classification of pumps cannot be integrated into their working principles and uses, which would be messy. The purpose is the use, the principle is the principle, the pump of different principles can be used for the same purpose. The same pump can be used in different applications, and what stainless steel pump can be used for different purposes. For example, the mixed flow pump is a diagonal flow pump, which uses a mixed flow impeller, that is, the direction in which the liquid flows out of the impeller is inclined to the axis. The axial flow pump has a liquid outflow direction parallel to the axis. The main categories are chemical pumps, magnetic pumps, centrifugal pumps, sewage pumps, self-priming pumps, oil pumps, diaphragm pumps, screw pumps, gear pumps, shielded pumps, submersible pumps, gear pumps, pipeline pumps, corrosion-resistant pumps, acid-resistant pumps, multi-stage pumps, stainless steel pumps, submerged pumps, etc. What is a water pump?

The pump can be divided into a pneumatic pump, a centrifugal pump, an axial flow pump, a mixed flow pump, a screw pump and the like in principle. The most used is the centrifugal pump. The principle of a centrifugal pump is centrifugation. It is caused by the rotation of the impeller blades to generate centrifugal force to pry the liquid out. Therefore, the conveying effect depends on factors such as the rotational speed and diameter of the impeller.

What is the pump used for?

Pumps with different principles of pumps can be used for the same purpose. The same pump can be used in different applications and can be used for different purposes. For example, the mixed flow pump is a diagonal flow pump, which uses a mixed flow impeller, that is, the direction in which the liquid flows out of the impeller is inclined to the axis. The axial flow pump has a liquid outflow direction parallel to the axis. The main categories are chemical pumps, magnetic pumps, centrifugal pumps, sewage pumps, self-priming pumps, oil pumps, diaphragm pumps, screw pumps, gear pumps, shielded pumps, submersible pumps, gear pumps, pipeline pumps, corrosion-resistant pumps, acid-resistant pumps, multi-stage pumps, stainless steel pumps, submerged pumps, etc.

What are the characteristics of the pump?

Pump features:

1. General characteristics of centrifugal pumps

(1) The direction of water flowing along the centrifugal pump is sucked in the axial direction of the impeller, and flows out perpendicularly to the axial direction, that is, the direction of the inflow and outflow flows at 90° to each other.

(2) Since the centrifugal pump forms vacuum suction through the inlet of the impeller, it is necessary to inject the water into the pump and the suction pipe before starting, or pump the air with a vacuum pump to form a vacuum to discharge the air, and the pump casing and the suction pipe must be tightly sealed. Do not leak, otherwise it will not form a vacuum, it will not be able to absorb water.

(3) Since the impeller inlet cannot form an absolute vacuum, the water absorption height of the centrifugal pump should not exceed 10 meters, plus the loss of water flowing through the suction pipe, the actual allowable installation height (the height of the pump axis from the suction surface) is much smaller than 10 m. If the installation is too high, it will not absorb water; in addition, because the mountain area is lower than the plain atmospheric pressure, the installation height of the same pump should be reduced when installing in the mountainous area, especially in the high mountainous area, otherwise it will not be able to absorb water.

2. General characteristics of axial flow pump

(1) The flow direction of water in the axial flow pump is sucked along the axial phase of the impeller, and the axial phase flows out. Therefore, it is called an axial flow pump.

(2) Low head (1 to 13 meters), large flow, high efficiency, suitable for drainage in plains, lakes and river networks.

(3) No need to fill water before starting, the operation is simple.

(3) Working principle and characteristics of the mixed flow pump.

3. General characteristics of mixed flow pumps

(1) Compared with the centrifugal pump, the mixed flow pump has a lower lift and a larger flow rate. Compared with the axial flow pump, the lift is higher and the flow rate is lower. Applicable to irrigation and drainage in plains and lakes.

(2) The water is sucked and discharged at a certain angle to the impeller shaft along the flow direction of the mixed flow pump, so it is also called a diagonal flow pump.