According to the manufacturer of hydraulic axial flow pump, the classification of pump cannot comprehensively classify its working principle and purpose, so it will be very confusing. Purpose is purpose and principle is principle. Pumps with different principles can be used for the same purpose. Our hydraulic axial flow pump manufacturer will introduce various knowledge and maintenance of submersible axial flow pump;
The same pump can also be used in different places and for different purposes. For example, the mixed-flow pump is a diagonal flow pump, and the mixed-flow impeller is adopted, that is, the direction of liquid flowing out of the impeller is inclined to the shaft. The liquid flow direction of the axial flow pump is parallel to the shaft. Its important classification includes sewage pump, chemical pump, magnetic pump, oil pump, fire pump, vacuum pump, diaphragm pump, screw pump, pipeline pump, submerged pump, reciprocating pump, colloid grinding, water supply and drainage equipment, hydraulic injector, control cabinet, etc. as reference:
1. First, according to the working principle:
1) . Vane pump
Vane pump can be divided into centrifugal pump, mixed flow pump, axial flow pump and vortex pump.
Centrifugal pump can also be divided into single-stage pump and multi-stage pump.
Single pump can be divided into single pump, double suction pump, self-priming pump, non-self-priming pump, etc.
Multi-stage pump can be divided into segmental type and volute type.
Mixing pump can be divided into volute type and guide vane type.
Axial flow pump can be divided into fixed blades and adjustable blades.
Vortex pump can also be divided into single suction pump, double suction pump, self-priming pump, non-self-priming pump, and submersible pump.
2) . Positive displacement pump
Volumetric pump can be divided into reciprocating pump and rotor pump.
Volumetric pump is a reciprocating or rotating activity in the pump cylinder according to the working parts to alternately increase and reduce the working volume to achieve the suction and discharge of liquid. The volume pump with reciprocating movement of working parts is called reciprocating pump, and the rotary movement is called rotary pump. The former is carried out alternately in the same pump cylinder and controlled by the suction valve and the discharge valve; The latter forces the liquid to transfer from the suction side to the discharge side through the rotation of working parts such as gears, screws, bladed rotors or slides, and then discharges the pump.
The flow rate of the volumetric pump is constant at a certain speed or the number of reciprocating times, and will hardly change with the pressure; The flow and pressure pulsation of reciprocating pump is large, so corresponding pulsation reduction methods must be adopted; Rotary pump generally has no pulsation or only small pulsation, diaphragm pump; After the self-priming capacity, centrifugal pump and pump are started, the pump must fully open the exhaust valve; Reciprocating pump is used for high pressure and small flow; Rotary pump is used for medium and small flow and high pressure; Reciprocating pump is suitable for conveying clean liquid or gas-liquid mixture and chemical pump. Generally speaking, the efficiency of volumetric pump is higher than that of power pump.
Well, the introduction of various knowledge and maintenance of submersible axial flow pump is over. If you have any information about the hydraulic axial flow pump that you want to know, you can click our website to check and consult!