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A Mathematical Model-Based Design Method for Centrifugal Pump Volute

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

Active Publication Date: 2016-06-22
ZHEJIANG COLLEGE OF ZHEJIANG UNIV OF TECHOLOGY
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  • Abstract
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  • Claims
  • Application Information

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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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  • A Mathematical Model-Based Design Method for Centrifugal Pump Volute
  • A Mathematical Model-Based Design Method for Centrifugal Pump Volute
  • A Mathematical Model-Based Design Method for Centrifugal Pump Volute

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Embodiment Construction

[0134] The present invention will be further described in detail below in conjunction with the drawings and embodiments.

[0135] Combine figure 1 The process of the centrifugal pump volute design method based on the mathematical model of the present invention is roughly divided into: 1) using the velocity coefficient method to calculate the basic geometric parameters of the volute; 2) using the velocity moment method to calculate the throat area of ​​the volute; 3) Initialize the geometric control variables of the volute; 4) Use the volute section area control equation to control the section area of ​​the volute; 5) Use mathematical models such as ellipse, circle and straight line to model the geometric shape of the volute section, and use three-dimensional coordinate points Express the control points of the volute section; 6) Use the successive area approximation iterative algorithm to calculate the section area of ​​the volute and the coordinates of the section control points;...

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Abstract

A method for designing a centrifugal pump volute based on a mathematical model, including: first, solving the basic geometric parameters of the volute based on the velocity coefficient method, and calculating the throat area of ​​the volute by using the velocity moment method; second, using the area The control coefficient and cross-sectional area calculation equation control and calculate different cross-sectional areas of the volute, and obtain the hydraulic model of the volute with different cross-sectional area distributions by changing the control coefficient; third, initialize the geometric control variables of the volute, and use ellipse, circle, Mathematical models such as straight lines are used to model the control points of different sections of the volute, and the different control points are represented by the three-dimensional coordinate method; and the coordinates of the control points of the volute section are quickly solved; fifth, based on the 3D design software, the 3D surface modeling of the volute represented by different control points is carried out.

Description

Technical field [0001] The invention belongs to the field of centrifugal pump hydraulic design, and specifically relates to a centrifugal pump volute design method based on a mathematical model, which is mainly used to quickly and accurately calculate and model the volute hydraulic model 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 the design error. Background technique [0002] At present, the traditional volute design method adopts graphic integration method or draws on graph paper according to scale, and its cross-sectional shape and geometric size are not accurate. Regarding the design of volutes, the results mainly focus on calculating the cross-sectional area of ​​the volute using the graphical integration method, and using two-dimensional coordinates to draw different cross-sectional geometric shapes of the volute. This design method requ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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