Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Centrifugal impeller geometry optimization designing method capable of improving pump efficiency

A technology of geometric parameters and centrifugal impeller, which is applied to the components, pumps, and pump components of pumping devices for elastic fluids.

Inactive Publication Date: 2013-12-18
CHENGDU YONGYI PUMPS
View PDF6 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods do not actually have innovative design concepts and behaviors, and cannot promote the technological progress of enterprises

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Centrifugal impeller geometry optimization designing method capable of improving pump efficiency
  • Centrifugal impeller geometry optimization designing method capable of improving pump efficiency
  • Centrifugal impeller geometry optimization designing method capable of improving pump efficiency

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0101] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0102] Convention notation:

[0103] Q T : The theoretical flow rate of the pump at the design point, m 3 / s;

[0104] Q: The flow rate of the pump at the design point, m 3 / s;

[0105] H: head of the pump at the design point, m;

[0106] n: design speed of the impeller, r / min;

[0107] ω: design rotational angular velocity of the impeller, 1 / s;

[0108] Ns: specific speed of the pump;

[0109] η, η h , η v , η m : Pump efficiency at design point, hydraulic efficiency, volumetric efficiency, mechanical efficiency;

[0110] hv: the impact loss at the outlet of the impeller at the design point, W;

[0111] ΔN 1 : Disc friction loss of the pump at the design point, W;

[0112] V 2 ,V m2 ,V u2 : Absolute velocity of water flow ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a centrifugal impeller geometry optimization designing method which is capable of improving pump efficiency. The method includes establishing a optimizing model of the centrifugal impeller geometry with efficiency iterations, calculating volumetric efficiency eta v and mechanical efficiency eta m of a pump at a design point, and performing efficiency iterations during the process of impeller geometry optimization. The beta 2, namely the sum of two losses of the impeller to allow h to be minimum, and a corresponding R2 are the final solution of the design. The centrifugal impeller geometry optimization designing method is capable of improving efficiency of the centrifugal pump, performances of the pump are improved in a wider range, and minimum sum of impeller outlet impact loss and friction loss of the impeller disc can be acquired by calculating the efficiency iterations of the centrifugal impeller geometry; computer software program can be written to implement accurate calculation of the centrifugal impeller geometry, design is facilitated, speed is high, design and produce accuracy of the centrifugal impeller can be improved effectively, and the method is adaptable to industrial design and production.

Description

technical field [0001] The invention relates to an optimal design method of geometric parameters of a centrifugal impeller which can improve pump efficiency. Background technique [0002] Centrifugal pumps are the mainstream products of pumps, accounting for a large share of more than 10 million pumps produced in the country every year. According to statistics, 20% of domestic annual power generation is used to drive pumps and fans. Improving the performance and operating efficiency of products with a wide range of products such as centrifugal pumps is of special significance to the realization of the macroeconomic goals of energy saving and emission reduction. [0003] The external characteristics of the pump, including its efficiency at each working point, are mainly determined by the hydraulic design of the impeller, volute and other flow-passing components. Advanced design principles and methods are the basis for manufacturing excellent products. After accepting the or...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F04D29/22
Inventor 严敬周绪成
Owner CHENGDU YONGYI PUMPS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com