Anti-corrosion plastic-lined impeller

Abstract

The invention discloses an anti-corrosion plastic-lined impeller. The anti-corrosion plastic-lined impeller comprises a metal insert and overflowing blades, wherein reinforcing frameworks are embeddedinto the overflowing blade arch surfaces; sunken embedding groove are formed in the corresponding positions of the arched surfaces; and the reinforcing frameworks are embedded in the embedding grooves, and are poured and sealed by using anti-corrosion sealant. The overflowing blades are made of corrosion-resistant fluorine plastic, and the inner frameworks and the reinforcing frameworks used forsupporting the inner strength and the outer strength of the overflowing blades respectively are metal inserts. The inner frameworks are the metal inserts, and are wholly covered with fluoroplastics; and the fluoroplastics and the inner frameworks are integrally manufactured. The reinforcing frameworks are poured and sealed by using the anti-corrosion sealant, so that the reinforcing frameworks areintegrally sealed in the embedding grooves of the blades, the limitation of corrosion resistance of metal materials and lack of strength of all-plastic impellers are effectively overcome, and the energy is saved; and damage frequency of the impellers is reduced, the maintenance period is prolonged, maintenance cost of users is reduced, operation consumption cost of a pump is reduced, production loss caused by shutdown is reduced, and using efficiency is remarkable.

Description

technical field [0001] The invention relates to the filling field, in particular to an anti-corrosion plastic-lined impeller. Background technique [0002] Centrifugal pumps are widely used because of their large liquid delivery capacity, uniform and stable flow rate, convenient use and low cost. The types of materials used in the manufacture of centrifugal pumps include cast iron, stainless steel, ceramics, various plastics, and more. For transporting highly corrosive acids, alkalis, and salt media, fluoroplastics or fluoroplastic alloys are mainly used. [0003] Fluoroplastic centrifugal pumps broaden the application fields of centrifugal pumps compared with metal centrifugal pumps, but the strength of plastic materials is much weaker than that of metals, especially the impeller, the heart part of pump parts. The strength of this part directly affects the pump. The useful life of the product. [0004] At present, the impellers in the corrosion-resistant pump industry ge...

AI Technical Summary

Problems solved by technology

[0007] 3. The front and rear cover plates of the impeller are deformed due to various reasons such as medium temperature, resulting in blockage of the blade outlet

[0008] As a result, the impeller of the fluoroplastic centrifugal pump is easily damaged or even unusable when it is used in a corrosion-resistant environment with a large flow rate and a high head. No effective solution has been found.

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