A corrosion-resistant magnetic pump

Abstract

The invention provides an anti-corrosion magnetic force pump. A pump shaft core rod and an impeller inner core are formed in an integrated way, a plastic impeller is injected on the impeller inner core, a plastic layer is coated on the surface of a pump shaft, the coating layer of the pump shaft and the plastic impeller are formed in the integrated way, a groove is formed in one side, abutting against the pump shaft, of an outer coating layer of an inner magnetic rotor, and is internally provided with a sealing ring, and a plastic sealing nut abut against each other, and a groove is also formed in one side, abutting against a plastic sealing nut, of a coating layer of the inner magnetic rotor, and is internally provided with a sealing ring. Due to the fact that the coating layer of the pump shaft and the impeller are integrated, the occurrence of a gap between the connecting components can be avoided, the sealing rings are used for conducting tighter sealing on the connecting parts of the coating layer of the pump shaft and the coating layer of the inner magnetic rotor, the working time and the exchanging cycle of the magnetic force pump can be greatly prolonged through the structure, and the production cost is greatly lowered.

Description

technical field [0001] The invention relates to the field of magnetic pumps, in particular to a corrosion-resistant magnetic pump. Background technique [0002] The magnetic pump is composed of an outer magnetic assembly, an inner magnetic assembly and a non-magnetic isolation sleeve. When the external driving force drives the outer magnetic assembly to rotate, the magnetic field can penetrate the air gap and non-magnetic substances, and drive the inner magnetic assembly connected to the impeller to operate. Synchronous rotation realizes the non-contact synchronous transmission of power. [0003] When the magnetic pump transports some corrosive media, since the metal pump shaft and inner magnetic steel will be immersed in the corrosive media, these parts will often be corroded. At present, the measures taken to solve this problem are mainly to cover the parts with plastic, but the connection between the magnetic assembly, the pump shaft and the impeller in the medium chambe...

AI Technical Summary

Problems solved by technology

At present, the measures taken to solve this problem are mainly to cover the parts with plastic, but the connection between the magnetic assembly, the pump shaft and the impeller in the medium chamber, especially the connection between the pump shaft and the inner magnetic part, because it cannot be covered with plastic, As a result, the medium penetrates into the metal contact surface and causes corrosion. Leakage will occur first, and it has to be stopped for replacement, resulting in large economic losses.

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