Centrifugal pump classification

Centrifugal pump classification, it is based on different structural characteristics and divided.

First, according to the number of working impeller to classify 1, single-stage pump: that is, only one impeller in the shaft.
2, multi-stage pump : that is, there are two or more than two impellers on the pump shaft, and the total lift of the pump is the sum of the lift produced by n impellers.

Second, according to the classification of working pressure 1, low-pressure pump: pressure less than 100 meters of water column;
2, the pressure pump: pressure in the water column between 100 ~ 650 meters;
3, high-pressure pump: pressure higher than 650 meters water column.

Third, according to the classification of the impeller water way 1, one side into the water pump: also known as single suction pump, that is, only one inlet on the impeller;
2, bilateral water pump: also known as double suction pump, that is, both sides of the impeller has a water inlet. Its flow rate is double that of a single suction pump, which can be approximated as two single-suction pump impellers placed back-to-back together.

Fourth, according to the pump shell combined with the type of seam 1, the level of open pump : that is, through the axis of the horizontal plane with a joint seam.
2, the vertical joint pump: that is, the junction plane and the axis of the vertical.

Fifth, according to the pump shaft position to classify 1, horizontal pump: pump shaft is located in horizontal position.
2, vertical pump: pump shaft is located in the vertical position.

Six, according to the impeller out of the way to the pressure chamber out of the classification 1, volute pump: water from the impeller, directly into the pump shell with a spiral shape.
2, guide vane pump: water from the impeller out into the guide vane set outside it, and then into the next level or into the outlet pipe.
Usually we say that a pump is a multistage pump, which means how much the impeller. According to other structural features, it may be horizontal pump, vertical joint surface pumps, vane pumps, high pressure pumps, single-inlet pumps and so on. So according to different, the name is not the same. In addition, can also be classified according to use, such as pumps, pumps, condensate pumps, ash pumps, circulating pumps, etc.

Classification Type Centrifugal Pump Features By suction Single suction pump Liquid flows into the impeller from one side, with axial force Double suction pump The liquid flows into the impeller from both sides, there is no axial force, the flow of the pump is almost one more than the single suction pump Times the number of single-stage pump shaft only one impeller multi-stage pump The same pump shaft mounted on two or more impeller, the liquid flow through each stage of the impeller, the more the series, the higher the head according to the pump shaft orientation horizontal Horizontal shaft pump shaft placed perpendicular to the horizontal plane according to the shell type Split pump shell according to the vertical plane with the shaft part of the segment with a long bolt connection between the open pump housing through the shaft center Divided volute casing in line plane Centrifugal pump with spiral pressure chamber, eg common end-suction cantilever centrifugal pump Turbine pump Centrifugal pump with guide vane pressurized water chamber Pipe with special structure Pump as Pipeline part of the installation without the need to change the pipeline submersible pump and motor made of one submerged in water submerged pump immersed in liquid pump shield pump impeller and motor rotor together as a whole, and in the same sealed shell, without the use of seals Structure, belonging to no vent Pump magnetic pump in addition to the import and export, the pump body is fully closed, the pump and the motor use of magnetic steel suction each other to drive self-priming pump pump start without irrigation liquid high-speed pump from the gear box to increase the speed of the pump shaft, the general speed Up to 10000r / min or more, can also be said that part of the pump or tangential booster pump Vertical tube pump import and export take over the same height in the upper, inner and outer two shells, the inner shell from the rotor, vanes, etc. Composition, the outer shell for the import diversion channel, the liquid inhalation from the bottom

Centrifugal pump classification type feature list

Classification

Types of

Centrifugal pump features

By inhalation

Single suction pump

Liquid flows into the impeller from one side and there is an axial force

Double suction pump

The flow of liquid from both sides into the impeller, there is no axial force, the pump flow is almost double the single suction pump

By series

Single-stage pump

There is only one impeller on the shaft

Multi-stage pump

The same pump shaft mounted two or more impeller, the liquid flow through each stage impeller, the more the series, the higher head

Press the pump shaft orientation

Horizontal pump

The shaft is placed horizontally

Vertical pump

The axis is perpendicular to the horizontal plane

According to the shell type

Segmented pump

Shell by the vertical plane with the shaft, the segments and segments with long bolts

In the open pump

The housing is split in a plane passing through the axis of the shaft

Volute pump

Centrifugal pumps with a spiral pressure chamber, such as the commonly used end suction cantilever centrifugal pump

Turbine pump

Centrifugal pump with vane pressure chamber

Special structure

Pipeline pump

Pump as part of the pipeline, installation without changing the pipeline

Submersible pump

Pump and motor made of one immersed in water

Submerged pump

Pump body immersed in liquid

Shield pump .

Impeller and motor rotor together, and in the same sealed shell, without the use of sealing structure, a leak-free pump

magnetic pump

Self-priming pump

High-speed pump