Corrosion-resisting and anti-dry-grinding magnetic axially split pump

Abstract

The invention relates to a corrosion-resistant and dry-wear-resistant magnetic split pump, which comprises a pump shaft (5), a pump body (1), a pump cover (2), a bearing component (3), a sealing ring (6), and an impeller (7 ), the inner magnetic rotor (32), the outer magnetic rotor (33), the isolation sleeve (4), the anti-corrosion filter parts (14), (15), (16), and the outer side of the impeller (7) and the inner wall of the pump chamber. The sealing ring (6) that maintains the gap effectively prevents the internal leakage of the pump. The inner magnetic rotor (32) is installed at the end of the drive end of the pump shaft (5), the outer magnetic rotor (33) is installed at the motor shaft end, and the inner magnetic rotor (32) A spacer sleeve (4) is set between the outer magnetic rotor (33), and the dynamic seal is converted to a static seal. The impurities are filtered by the anti-corrosion filter parts (14), (15), (16) to ensure the safe operation of the pump. The above-mentioned structure replacing the sliding bearing and the magnetic split pump made of corrosion-resistant materials improve the performance of the pump against dry wear and corrosion.

Description

technical field [0001] The invention relates to a split pump, in particular to a corrosion-resistant and dry-wear-resistant magnetic split pump. Background technique [0002] As an important form of centrifugal pump, the split pump is widely used in the transportation of non-corrosive media such as water because of its high head and large flow. The split pump is a rotary fluid machine. It connects the prime mover to the impeller shaft with a coupling. The energy input by the prime mover passes through the rotating shaft and transfers the liquid to be transported through the impeller. Therefore, when the rotating shaft extends out of the pump body The position of the fixing part needs to be sealed with a sealing part or a sealing device. This type of sealing belongs to the dynamic seal. The dynamic seal has the problem of "running, popping, dripping, and leaking". Therefore, the split pump is still only in the delivery It is used in the field of non-toxic and non-corrosive m...

AI Technical Summary

Problems solved by technology

After the sealing ring is worn, the axial clearance increases, the pump discharge volume decreases, and the pump working efficiency decreases. When the clearance exceeds a certain value, the centrifugal pump has no working efficiency.

In addition, friction occurs between the friction pairs of traditional sealing rings. Once the liquid is cut off, heat is easily generated. When transporting flammable and explosive media, there are serious safety hazards.

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