Secondary gas source protective magnetic pump device suitable for conveying particle-containing impurity medium

Abstract

The invention relates to a secondary gas source protective magnetic pump device suitable for conveying a particle-containing impurity medium. The secondary gas source protective magnetic pump device comprises a water conservancy over-flow unit, a magnetic drive unit and a secondary gas source protective unit between the water conservancy over-flow unit and the magnetic drive unit, wherein the water conservancy over-flow unit comprises a pump body, an impeller, a pump cover and a pump shaft; a pump cavity is formed between the pump body and the pump cover; the impeller is positioned in the pumpcavity and is connected on the pump shaft; the pump shaft passes through the pump cover and the secondary gas source protective unit, and is connected with the magnetic drive unit; a secondary impeller is arranged on the pump shaft between the impeller and the pump cover; a front baffle cover is arranged between the impeller and the secondary impeller; and a spiral pumping ring is arranged between the pump shaft and the pump cover. Compared with the prior art, the secondary gas source protective magnetic pump device has the advantages of being long in service life, safe and reliable, wide inrange of application, good in sealing performance, and the like.

Description

technical field [0001] The invention relates to a magnetic pump, in particular to a secondary air source protection magnetic pump device suitable for transporting medium containing particle impurities. Background technique [0002] The existing technology of the magnetic centrifugal pump is that the static seal of the magnetic pump replaces the original dynamic seal structure, so as to prevent running, emitting, dripping and leaking, and realize complete sealing. The magnetic coupler forms an alternating magnetic field from the inner magnetic rotor and the outer magnetic rotor to realize the torque transmission from the motor to the impeller. The inner magnetic rotor and the outer magnetic rotor are separated by a metal isolation sleeve to achieve a completely leak-free static seal. The metal isolation sleeve will cut the magnetic induction line to form magnetic eddy current heat. The flow part is carried by ceramic sliding bearings. Due to the small matching gap between th...

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Problems solved by technology

Due to the small matching gap between the bearing part and the magnetic gap part, the magnetic force pump needs an internal medium to cool its magnetic coupler part and sliding bearing part, such as the magnetic force pump disclosed in Chinese patent CN102954003A, so the magnetic force pump in the prior art can only transport Cleaning media containing particles and free of ferromagnetic impurities

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