Integrated magnetic pump based on axial dual motor driving

Abstract

An integrated magnetic pump based on axial dual motor driving comprises a pump body, an impeller, a pump shaft, a permanent magnet rotor and an electromagnetic stator, wherein the pump body comprises a front housing, an intermediate housing and a rear housing; the inner side of the pump body is divided into a front cavity and a rear cavity through the intermediate housing; the impeller is mounted in the front cavity; the permanent magnet rotor is mounted in the rear cavity; the impeller and the permanent magnet rotor are integrally connected through the pump shaft; the electromagnetic stator comprises a left stator and a right stator which are oppositely mounted at the left side and the right side of the rear cavity, and the left stator and the right stator are circumferentially arranged along the pump shaft; the permanent magnet rotor is mounted between the left stator and the right stator; the left stator and the right stator are correspondingly sealed through a separating plate and a separating sleeve and are separated from the permanent magnet rotor. According to the integrated magnetic pump based on the axial dual motor driving, the axial length and the size of the pump body are reduced; the impeller torque is increased; the vibration is reduced; the size is small under the same output power requirement.

Description

technical field [0001] The invention relates to a magnetic pump, in particular to an integrated magnetic pump driven by axial double motors. Background technique [0002] As a non-leakage pump, the magnetic pump is widely used in the fields of medicine, chemical industry, petrochemical and other fields for pumping non-aqueous media. [0003] Existing magnetic pumps are often composed of three parts: motor, magnetic driver and pump. Among them, the magnetic driver is composed of outer magnetic rotor, inner magnetic rotor and non-magnetic isolation sleeve; the inner magnetic rotor is connected with the pump rotor and is located in the isolation sleeve. In the closed space formed by the pump body; the outer magnetic rotor is connected with the motor rotor and is located outside the isolation sleeve. The magnetic pump adopts the magnetic drive mechanism to change the dynamic seal of the ordinary water pump into a static seal through the isolation sleeve to prevent leakage and c...

AI Technical Summary

Problems solved by technology

However, the permanent magnet rotors used in these two documents are all in the form of a "cylindrical" structure with a large structure, so that the size of the entire magnetic pump is restricted by the permanent magnet rotor, so there are still problems in reducing volume and weight. a lot of room for improvement

Moreover, the magnetic pump disclosed in the document CN104179693A adopts a "cylindrical" permanent magnet rotor, which results in a larger axial dimension of the central shaft for installing the permanent magnetic rotor, thereby making the axial dimension of the entire magnetic pump larger

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