Automatic design method for novel axial flow pump impeller based on Brewkovski airfoil profile

Abstract

The invention discloses an automatic design method for a novel axial flow pump impeller based on a Brewkovski airfoil profile, belongs to the technical field of hydraulic engineering equipment. Parameters of the blade grid density, the axial surface speed, the rotation component speed, the blade chord placing angle, the airfoil profile camber and thickness are determined; a design method of the system is formed through coordinate transformation and graphic display. The method is scientific, the design principle is clear, the model design of the axial flow pump becomes simpler and more convenient from theoretical analysis to model establishment and from program design to model output, the operation efficiency and precision of the axial flow pump are improved, theoretical guidance is provided for researchers in various fields, and technical support is also provided for axial flow pump manufacturers.

Description

technical field [0001] The invention belongs to the technical field of hydraulic engineering equipment, and relates to a design method of an axial flow pump impeller, in particular to an automatic design method of a novel axial flow pump impeller based on the Rukovsky airfoil. Background technique [0002] Pumps play an irreplaceable role in urban drainage, reservoir water transfer, river regulation, water supply systems and many other fields. As a kind of vane pump, the axial flow pump has the advantages of economy and convenience, high efficiency and energy saving, and high reliability, so it has been widely used in pumping stations. The impeller of the axial flow pump is the core and the most important flow-passing part of the pump device, and its design directly determines the comprehensive effect of the device and even the entire pumping station. [0003] However, most scholars seldom transform the analysis results into the theory of axial flow pump impeller design to ...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the lack of the theory of transforming the analysis results into the design of the axial flow pump impeller, the design of the axial flow pump impeller is relatively inefficient, and the universal performance of the axial flow pump impeller is poor. The automatic design method of the new type axial flow pump impeller of the Skifoil type can make the model design of the axial flow pump more simple and convenient by combining the operating parameters and analysis results of the axial flow pump into the automatic design method of the axial flow pump impeller, which can further improve the axial flow pump Flow pump operating efficiency and accuracy

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