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A design method of guide vane of submersible axial flow pump and guide vane of submersible axial flow pump

A design method and technology for an axial flow pump, which are applied to the components, pumps, and pump components of a pumping device for elastic fluids, which can solve the problem of inappropriate use of submersible axial flow pump guide vanes, unfavorable long-term stable operation of the pump, and increased casting. Difficulty and other problems, to achieve the effect of saving manpower, increasing strength, and reducing casting difficulty

Active Publication Date: 2015-08-26
JIANGSU KAIQUAN PUMP IND MFG
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  • Application Information

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Problems solved by technology

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 the axial length is long, the traditional axial flow pump guide vane design method and formula are mainly designed for the cylindrical hub , and the inlet and outlet ends of the guide vane airfoil designed by the traditional method are sharp, which will increase the difficulty of casting and reduce the strength of the guide vane, which is not conducive to the long-term stable operation of the pump, so it is not suitable for the design of the guide vane of the submersible axial flow pump

Method used

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  • A design method of guide vane of submersible axial flow pump and guide vane of submersible axial flow pump
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  • A design method of guide vane of submersible axial flow pump and guide vane of submersible axial flow pump

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Embodiment Construction

[0042] In order to illustrate the technical solution of the present invention more clearly, further detailed description will be given below in conjunction with the accompanying drawings along with the present invention.

[0043] Such as figure 1 As shown, the structural parameters of the guide vane of the submersible axial flow pump mainly include the diameter of the hub of the inlet guide vane D h , Outer diameter of inlet guide vane D 2 , guide vane inlet inclination angle ε 1 , 1 / 2 guide vane inner divergence angle α / 2, 1 / 2 guide vane outer divergence angle β / 2, guide vane inner streamline length l α , guide vane outer flowline length l β .

[0044] The guide vane design method of the submersible axial flow pump described in the present invention is based on the diameter of the submersible axial flow pump impeller hub and the outer diameter of the impeller to determine the diameter D of the inlet guide vane hub h , Outer diameter of inlet guide vane D 2 , Guide vane ...

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/18
Inventor 朱荣生王秀礼付强
Owner JIANGSU KAIQUAN PUMP IND MFG
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