Dual-head pump

Abstract

The invention discloses a dual-head pump. The dual-head pump comprises two pump heads and a pump body, wherein the two pump heads are symmetrically arranged at both ends of the pump body, each pump head comprises a pump chamber cover, a horizontal water inlet and a vertical water outlet, and the pump body comprises a rotor and a stator; each end of the rotor extends into the corresponding pump body; impellers are symmetrically arranged at both ends of the rotor. By means of the symmetrical design of the pump heads, reaction forces generated at both ends of the dual-head pump can counteract mutually, so that vibration, noise and friction can be reduced, energy efficiency can be improved and the like.

Description

technical field [0001] The invention relates to the field of conveying equipment, in particular to a double-head pump. Background technique [0002] The current water pump design adopts a single-motor single-pump room cover structure. This kind of water pump is affected by the reaction force when it is working. The reaction force on the impeller, the direction of these two reaction forces is opposite to the direction of the water inlet and the direction of the water outlet. The size of the reaction force is proportional to the lift and flow of the pump. There is a thrust ring device, which restricts the axial movement of the rotor under the action of the reaction force, but because the rotor is running at a high speed when it is working, the function of the thrust ring to restrict the axial movement of the rotor will be in the form of friction It produces a lot of energy consumption, and the radial reaction force only acts on one end of the rotor, which causes the motor to ...

AI Technical Summary

Problems solved by technology

[0002] The current water pump design adopts a single-motor single-pump room cover structure. This kind of water pump is affected by the reaction force when it is working. The reaction force on the impeller, the direction of these two reaction forces is opposite to the direction of the water inlet and the direction of the water outlet. The size of the reaction force is proportional to the lift and flow of the pump. There is a thrust ring device, which restricts the axial movement of the rotor under the action of the reaction force, but because the rotor is running at a high speed when it is working, the function of the thrust ring to restrict the axial movement of the rotor will be in the form of friction It produces a lot of energy consumption, and the radial reaction force only acts on one end of the rotor, which causes the motor to be unbalanced when rotating at high speed, the vibration and noise of the motor will be greater, and the friction between the motor shaft and the bearing will also increase, and the energy efficiency and life of the product will decrease accordingly

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