Reverse impeller hydraulic power design method

A technology of reverse design and impeller, applied in design optimization/simulation, calculation, image data processing, etc., can solve problems such as failure to ensure expected effect, waste of manpower and material resources, and high design cost, so as to reduce unpredictability, reliable performance, and time-saving and the effect of frequency reduction

Inactive Publication Date: 2018-04-13
ZHEJIANG FROG PUMP IND
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AI Technical Summary

Problems solved by technology

[0002] The hydraulic forward design of the impeller is a process of "starting from scratch", which requires hydraulic calculation and comparative analysis in advance, which often requires inspiration and careful thinking, which is extremely time-consuming
[0003] The hydraulic forward design of the impeller has certain limitations and unpredictability. Even experienced designers design according to the orthogonal test method, which has certain experience and cannot guarantee that the expected effect can be achieved.
[0004] Impeller hydraulics The impeller hydraulics designed in the forward direction generally have multiple schemes, which need to go through many experiments and tests, which not only takes a long time, but also wastes manpower and material resources, and the design cost is high

Method used

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  • Reverse impeller hydraulic power design method

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Embodiment Construction

[0027] Below in conjunction with accompanying drawing and specific embodiment the present invention will be described in further detail:

[0028] see figure 1 , the present invention provides a hydraulic reverse design method for an impeller, characterized in that: the first step is to determine the design parameters, the design parameters are as follows:

[0029] Flow Q = 30m3 / hs

[0030] Head H =6m

[0031] Speed ​​n = 2850r / min

[0032] Efficiency η = 45.6%;

[0033] The second step: 3D scanning and surface modeling;

[0034] The third step: impeller streamline extraction and surface reconstruction;

[0035] Step 4: Restoration and correction of the hydraulic diagram of the CAD impeller, and correct the extracted streamlines with circular arcs, while ensuring smooth streamlines of the axial surface and plane projection diagram;

[0036] Step 5: 3D remodeling of the impeller;

[0037] The sixth step: CFD analysis and rapid prototyping or rapid mold, when the CFD analy...

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Abstract

The invention discloses a reverse impeller hydraulic power design method. The method is characterized by comprising the following steps of: 1, determining design parameters as follows: flow Q=30m3 / hs,lift H=6m, revolving speed n=2850r / min, efficiency <Eta>=45.7%; 2, carrying out 3D scanning and surface modeling; 3, carrying out impeller flow line extraction and surface reconstruction; 4, carryingout CAD impeller hydraulic power graph restoration and correction; 5, impeller three-dimensional reconstruction; 6, carrying out CFD analysis and rapid prototyping or rapid molding, and when the CFDanalysis in unqualified, returning to step 4; and 7, when both the CFD analysis and the rapid prototyping or rapid molding are qualified, entering performance test and comparison. According to the method, the product conception time can be shortened to the greatest extent through a reverse design method, under the reference of original products, the unpredictability can be reduced, and the experiment time and frequency can be properly decreased so as to reduce the cost.

Description

technical field [0001] The invention relates to a hydraulic inverse design method of an impeller. Background technique [0002] The hydraulic forward design of the impeller is a process of "starting from scratch", which requires hydraulic calculation and comparative analysis in advance, which often requires inspiration and careful thinking, which is extremely time-consuming. [0003] The hydraulic forward design of the impeller has certain limitations and unpredictability. Even experienced designers design according to the orthogonal test method, which has certain experience and cannot guarantee that the expected effect can be achieved. [0004] Impeller hydraulics The impeller hydraulics designed by the forward design generally have multiple schemes, which need to go through many experiments and tests, which not only takes a long time period, but also wastes manpower and material resources, and the design cost is high. Contents of the invention [0005] The technical pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06T17/00
CPCG06F30/20G06T17/00
Inventor 金军华
Owner ZHEJIANG FROG PUMP IND
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