A small structure and characteristics of the centrifugal pump is introduced

compared with other types of pumps, centrifugal pumps with uniform flow, smooth operation, little vibration, high speed, equipment installation and maintenance of low cost, wide applicable scope ( Including the capacity and head and adaptability on the properties of medium, etc. Therefore, a centrifugal pump is widely used in industrial production.

all kinds of small centrifugal pump is widely used in the industries of petroleum and petrochemical production enterprises and economic of other enterprises.

small centrifugal pump centrifugal pump structure is usually driven by a motor. Before you start the pump, pump body and suction pipe is filled with liquid. When the high-speed rotating impeller, the impeller turns the blade between the liquid together. Due to the effect of centrifugal force, the liquid from the center to the impeller outer edge ( Flow rate can be increased to 15 ~ 25 m/s) , the kinetic energy also increases. After fluid entering the pump shell, because of the volute flow channel in the pump shell gradually expand, liquid velocity decreases, part of the kinetic energy is converted to static pressure, so the liquid with high pressure along the outlet flow out. At the same time, because the liquid was thrown in the center of the impeller formed certain vacuum, pressure and liquid level in Pa is higher than the pressure of the impeller center. Therefore, the liquid suction pipe is under the action of the differential pressure into the pump. Don't stop rotating impeller, liquid continually sucked out and delivery. A centrifugal pump was known as the centrifugal pump, because they are conveying liquid mainly by centrifugal force.

small centrifugal pump working principle of the

small centrifugal pump classification 1. According to the classified work impeller number 1. Single-stage pump: that is to say, there is only one impeller pump shaft. 2. Multistage pump: the pump shaft, there are two or more of the impeller.

2, according to the working pressure of low pressure water pump, medium pressure pump, high pressure pump to classify

three, according to the way of the impeller inlet classification 1, one into the water pump: also known as single suction pump, the impeller on only one entrance; 2. Double into the water pump: also known as double suction pump, the impeller has an inlet on both sides.

4, according to the water pump shaft position classification 1, horizontal pump, pump shaft in the horizontal position. 2. Vertical pump: the pump shaft is located in the vertical position. Centrifugal pump

the basic structure of single-stage single-suction centrifugal pump features: single-stage single-suction centrifugal pump reliable operation, simple structure, easy manufacturing and processing, easy maintenance, strong adaptability. This is a widely used centrifugal pump. One end of the pump is supported by scaffolding of the bearing, and is equipped with the impeller at the other end of the cantilever bracket.

according to the different separation of pump body and pump cover position, can be divided into two kinds of structure: the former open and open back. Open back pump has the advantage of maintenance, as long as retaining nut loosen stents, stents and impeller can be removed together, without having to remove the import and export of pipeline pump. 

double suction centrifugal pump structure features:

1. Beautiful shape, good stability, convenient installation. According to the need, the motor can be on the left side or right side. Double suction centrifugal water pump in the pump shell is split type structure. Maintenance, just mention the pump cover, rotor parts can be removed from the maintenance, without having to remove the pipe, is very convenient.

2。 Shaft seal should choose mechanical seals or packing seal. Can guarantee for a long time without any leakage. The impeller sealing ring can be replaced after being worn out, reduces the operation maintenance cost.

3。 Optimization design of double suction impeller by minimizing the axial force hydraulic symmetric without axial force ( In theory) 。 Due to the double suction impeller has two suction, each import just under half of the traffic, so traffic is relatively low, the impeller cavitation.

4。 High efficiency, flow, high lift. However, it is bulky, heavy weight, usually is not suitable for mobile operation. Mainly used in factories, mines, city water supply and drainage, etc.

the structure characteristics of the multistage centrifugal pump, multi-stage pump adopts multiple impeller series, head high. It can be divided into two forms: multistage centrifugal pump and multistage centrifugal pump every block

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