Method for designing submersible axial-flow pump guide vane and submersible axial-flow pump guide vane

A design method and technology of axial flow pumps, which are applied to parts, pumps, and pump elements of pumping devices used for elastic fluids, can solve the problems of unsuitable guide vanes of submersible axial flow pumps, unfavorable long-term stable operation of pumps, and reduced Guide vane strength and other issues to achieve the effect of saving manpower, increasing strength and reducing casting difficulty
CN103644140AActive Publication Date: 2014-03-19JIANGSU KAIQUAN PUMP IND MFG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU KAIQUAN PUMP IND MFG
Publication Date
2014-03-19

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Abstract

The invention provides a method for designing a submersible axial-flow pump guide vane and a submersible axial-flow pump guide vane. According to the method, the entry guide vane hub diameter Dh, the entry guide vane outer diameter D2, the guide vane entry inclination angle epsilon1, the guide vane inner side divergence angle alpha, the guide vane outer side divergence angle beta, the guide vane inner flow line length alpha1 and the guide vane outer flow line length beta1 of the submersible axial-flow pump guide vane are determined on the basis of the hub diameter and the guide vane outer diameter of a submersible axial-flow pump guide vane wheel. Design can be rapidly achieved, manpower is saved, and the performance curve of the submersible axial-flow pump guide vane coincides with a required performance curve. Compared with a traditional design method for a submersible axial-flow pump guide vane, lift and efficiency are improved, ranges of efficient areas are widened, and operational reliability of the submersible axial-flow pump guide vane is improved.
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Description

technical field

[0001] The invention belongs to the field of pump design and manufacture, and relates to a design method for a guide vane of a submersible axial flow pump and the guide vane of the submersible axial flow pump. Background technique

[0002] Axial flow pumps are low-lift, high-flow pumps. The general performance range is: head 1-12m, flow 0.3-65m 3 / s, specific speed 500~1600. The submersible electric pump is a mature alternative to conventional water pumps and has been widely used. The submersible axial flow pump is an integrated pump structure, mainly composed of two parts: a submersible motor and a submersible pump. The design method of the guide vane of the axial flow pump can use the lift method, the integral method and the streamline method, but the streamline method is generally used. Since the guide vane hub of the submersible axial flow pump is not the cylindrical hub used for the guide vane of the traditional axial flow pump, but a conical hub, and...

Claims

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