Novel small-flow high-lift peripheral pump

Abstract

The invention discloses a peripheral pump which belongs to a new high-tech product, is high in technological content and economic value added, is used in fields such as lorries, ships, large excavators, locomotives, and coal and petroleum mining machinery and has great market potential and popularization and application prospect. The peripheral pump integrates a mechanical transmission technology, a hydraulic technology, a lubricating cooling technology and a material technology, belongs to the new high-tech product, is high in technological content and economic value added, and keeps the advanced level in China in similar products. By adopting an internally-wrapped framework rotary shaft lip sealing ring, the limit of the mechanical sealing mode adopted in the existing product does not exist; and on the aspect of the optimization design of impellers, two-shoulder type impeller structures on two sides are established, the constraint of difficulty in regulation of impeller side play does not exist, and the problems of flow pulsation and unstable operation are eliminated, and therefore minimum axial gaps between the impellers and a pump body as well as a pump cover are ensured.

Description

technical field [0001] The high-performance small vortex pump has the characteristics of small size, light weight, high temperature resistance, high reliability and long life, and can work reliably in a complex environment for a long time. [0002] This product is mainly used in the laser cooling system of special vehicles. It can also be used in trucks, ships, large excavators, railway locomotives, coal and oil mining machinery and other fields. It has great market potential and promotion and application prospects. Background technique [0003] The vortex pump is a vane pump with high pressure and low flow. It has the characteristics of simple structure, small size and light weight. It can transport clean liquid without solid particles with a viscosity of less than 15°E. Vortex pumps are suitable for supplying coolant to laser systems for heat dissipation. [0004] The research in this area in foreign developed countries is very mature in technology, and the products produ...

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Problems solved by technology

[0005] At present, there are many domestic research and production units of vortex pumps, but none of them can meet the special needs of domestic special vehicles

A few years ago, a well-known professional pump and valve research and development unit in China invested considerable manpower and material resources in the research and development of this project. So far, because the key technology cannot be broken through, it has ended in vain and suffered huge losses.

The main problems are that the poor sealing performance of the product causes leakage, especially at low temperature, the inability to start and seal failure, no vibration resistance and poor corrosion resistance

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