Isolation sleeve assembly of a magnetic pump

Abstract

The invention discloses an isolation cover assembly of a magnetic force pump. The isolation cover assembly comprises an internal isolation cover, an external isolation cover, an electric heating mechanism, a circular heat conducting strip and a lining ring, wherein the internal isolation cover consists of an internal isolation cover flange, an internal isolation cover thin-wall barrel and an internal isolation cover bottom plate; the external isolation cover consists of an external isolation cover flange, an external isolation cover thin-wall barrel and an external isolation cover bottom plate; the lining ring is located between the internal isolation cover and the external isolation cover; a sealed cavity is formed among the internal isolation cover, the external isolation cover and the lining ring; the circular heat conducting strip is arranged in the middle part of the internal isolation cover bottom plate; the circular heat conducting strip is connected with the electric heating mechanism. As the isolation cover assembly of the magnetic force pump provided by the invention adopts such a structure, a heat source can reach an easy-to-crystallize medium area at an internal magnetic rotor after shut-down; therefore the restart resistance of the magnetic force pump is decreased; the service life of the magnetic force pump is prolonged; moreover, the damage of the isolation cover can be discovered in time, so that a leakage accident is avoided.

Description

Technical field [0001] The invention relates to a pump, in particular to an isolation sleeve assembly of a magnetic pump. Background technique [0002] Magnetic pump is a commonly used fluid conveying machine. With its advantages of no leakage, low noise, stable operation, etc., it is widely used in the pharmaceutical, chemical, sanitary and other industries. The isolation sleeve is a key part of the magnetic pump. It isolates the inner magnetic rotor from the outer magnetic rotor and seals the conveying medium in the pump body to achieve no leakage. The existing isolation sleeve is usually a flat bottom type, which is composed of a flange, a thin-walled tube and a bottom plate. When transporting crystalline media, the shutdown will cause the crystalline media not emptied at the casing, pump cover, and inner magnetic rotor to become powdery or lumpy. When restarting, the resistance will be large, which will cause bearing damage or even failure to start. This requires melting th...

AI Technical Summary

Problems solved by technology

When transporting easily crystallized medium, stopping the machine will cause the unemptied easily crystallized medium in the housing, pump cover, and inner magnetic rotor to become powdery or blocky. When restarting, the resistance is large, which will cause damage to the bearing or even fail to start. , which needs to be solidified into powdery, blocky crystallization medium to melt, the easy crystallization medium at the casing and pump cover is easy to melt, but the easy crystallization medium at the inner magnetic rotor cannot reach this area due to structural reasons, Start again, the resistance is large, it will cause damage to the bearing, or even fail to start

At present, there is no such isolation sleeve assembly of the magnetic pump, which can make the heat source reach the easy-to-crystallization medium area of ​​the inner magnetic rotor after shutdown, reduce the re-starting resistance of the magnetic pump, and prolong the service life of the magnetic pump

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