Description
Elestar impeller centrifugal pumps with SS304 pump cylinder garden centrifugal pump can be used as a boost up household water pressure on clean water
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A multi-stage pump is a type of pump that relies on impeller rotation to obtain centrifugal force,
and achieves higher head and pressure by connecting multiple single-stage pumps in series.
A multi-stage pump mainly consists of the following parts:
Impeller: The impeller is the core part of a multi-stage pump, which generates centrifugal force through high-speed rotation, thereby increasing the pressure and flow rate of the liquid. The design of the impeller requires a smooth surface to reduce water flow friction loss
Pump casing: including the inlet section, outlet section, and middle section, it plays a supporting and fixing role, and is connected to the bracket for installing bearings. The design of the pump casing has a significant impact on the performance of multi-stage pumps
Pump shaft: The pump shaft is connected to the electric motor through a coupling, transmitting mechanical energy and is the main component for transmitting mechanical energy
Bearings: supporting the pump shaft, divided into rolling bearings and sliding bearings, using different lubricants and maintenance methods
Sealing ring: installed between the impeller inlet and the pump casing to reduce leakage and maintain efficient pump operation
Packing box: including packing, water seal ring, etc., used to seal the axial clearance of the pump and prevent liquid leakage
working principle
The working principle of a multi-stage pump is to work in series with multiple impellers, and each stage impeller converts a portion of the kinetic energy of the liquid into potential energy, gradually increasing the pressure of the liquid. After entering the pump from the suction section, the liquid is pressurized by each stage impeller and finally discharged outside the pump after passing through the final stage impeller
Application scenarios and maintenance
Multi stage pumps are commonly used in applications that require high head and high pressure, such as water supply systems, chemical processes, etc. Due to its complex structure, maintenance is relatively difficult, but its service life can be extended through regular inspection and maintenance. Attention should be paid to the temperature and lubrication of the bearings during maintenance to ensure the normal operation of all components
