Axial flow pump with self-cutting function

Abstract

The invention discloses an axial flow pump with a self-cutting function in the technical field of axial flow pumps. and the side of the guide vane blade far away from the guide vane hub is fixedly installed on the inner wall of the casing, the bottom of the guide vane blade is installed with the rotating shaft through a socket bearing, and the other end of the rotating shaft is installed with the impeller hub through a sleeve bearing, so The outer wall of the impeller hub is equipped with axial flow pump blades, the bottom of the impeller hub is equipped with a diversion cap, and the outer wall of the diversion cap is equipped with a cutting knife. The structure of the device is simple, and the cutting knife and the diversion cap are integrally formed. Realize the rapid cutting of large particles, hemp fibers and other debris by the cutting knife, without adding additional cutting devices, the axial flow pump with self-cutting function has good hydraulic performance, prevents clogging, and prolongs the service life of the axial flow pump blades. Reduce maintenance costs for axial flow pump blades.

Description

technical field [0001] The invention relates to the technical field of axial flow pumps, in particular to an axial flow pump with a self-cutting function. Background technique [0002] Pumping station is the key power equipment for the allocation of human water resources. As an important engineering measure, it plays an irreplaceable role in the spatio-temporal regulation and governance of water resources. Water consumption and domestic water supply for urban and rural residents play an important role. In some domestic coastal cities along rivers, some low-lying countries in Europe, such as the Netherlands, are prone to flood disasters due to rainfall, river and ocean ebb and flow, and pumping stations are an effective means of avoiding such natural disasters. With rapid development at home and abroad, it is used in large and small rivers, reservoirs and other places, and plays a huge role in ensuring the safety of people's lives and property. However, with the increasingly...

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Problems solved by technology

[0003] The purpose of the present invention is to provide an axial flow pump with self-cutting function, so as to solve the problem that the long and flexible debris is easy to wrap around the blades of the axial flow pump proposed in the above background technology, and the rigid debris with large particles will directly hit the axial flow pump. Impellers, a problem that reduces the hydraulic efficiency of axial flow pump installations

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