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Mathematical model based centrifugal pump volute design method

A mathematical model and centrifugal pump technology, applied to components, pumps, and calculations of pumping devices for elastic fluids, can solve problems such as low design accuracy and long design cycle

Active Publication Date: 2014-12-31
ZHEJIANG COLLEGE OF ZHEJIANG UNIV OF TECHOLOGY
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Problems solved by technology

This method has the disadvantages of low design accuracy and long design cycle.

Method used

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  • Mathematical model based centrifugal pump volute design method
  • Mathematical model based centrifugal pump volute design method
  • Mathematical model based centrifugal pump volute design method

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Embodiment Construction

[0135] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0136] combine figure 1 , the flow process of the centrifugal pump volute design method based on mathematical model described in the present invention is roughly divided into: 1) adopt velocity coefficient method to calculate volute basic geometric parameter; 2) adopt velocity moment method to calculate volute throat area; 3) Initialize the geometric control variables of the volute; 4) Use the volute section area control equation to control the volute section area; 5) Use mathematical models such as ellipse, circle and line to model the section geometry of the volute, and use the three-dimensional coordinate point Express the volute section control points; 6) Use the successive area approximation iterative algorithm to calculate the volute section area and section control point coordinates; 7) Use 3D software to geometrically model the volute control...

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Abstract

A mathematical model based centrifugal pump volute design method includes firstly, solving basic geometrical parameters of a volute according to a velocity coefficient method and calculating throat area of the volute by a velocity moment method; secondly, controlling and calculating different section areas of the volute according to an area control coefficient and a section area calculating equation and changing the control efficient to acquire volute hydraulic models of different section area distributions; thirdly, initializing geometric control variables of the volute, modeling for control points of different sections of the volute through mathematical models such as elliptical, circular, linear models, and expressing the different control points by a three-dimensional coordinate method; fourthly, utilizing a volute section area successive approximation and iteration algorithm to rapidly solve the coordinates of different section areas and section control points of the volute precisely; and fifthly, performing three-dimensional curve modeling to the volutes represented by different control points on the basis of three-dimensional design software.

Description

technical field [0001] The invention belongs to the field of hydraulic design of centrifugal pumps, in particular to a method for designing a centrifugal pump volute based on a mathematical model, which is mainly used for fast and accurate calculation and modeling of the hydraulic model of the volute, so as to reduce the difficulty of centrifugal pump volute design , shorten the design and development cycle of the centrifugal pump volute, and further reduce the hydraulic loss caused by design errors. Background technique [0002] At present, the traditional volute design method adopts the graphical integral method or draws on graph paper in proportion, and its cross-sectional shape and geometric size are not accurate. As for the design of the volute, the achievements mainly focus on the calculation of the cross-sectional area of ​​the volute by the graphical integral method, and the use of two-dimensional coordinates to draw the geometric shapes of different volute sections....

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Application Information

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IPC IPC(8): F04D29/42G06F17/50
Inventor 吴登昊任芸杨友东蒋兰芳刘健
Owner ZHEJIANG COLLEGE OF ZHEJIANG UNIV OF TECHOLOGY
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