Guide vane of efficient submersible type flood rescue pump

A submersible and emergency pump technology, applied in non-variable-capacity pumps, pumps, pump components, etc., can solve problems such as difficulty in achieving expected results, large discrepancies between theoretical design and actual models, and improve stability and ensure mutual Match, calculate exact effects

Active Publication Date: 2019-01-08
TAIZHOU TAIFENG PUMP IND
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing design method, the theoretical design and the actual model are quite different, and it is difficult to achieve the expected effect

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
  • Guide vane of efficient submersible type flood rescue pump
  • Guide vane of efficient submersible type flood rescue pump
  • Guide vane of efficient submersible type flood rescue pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0074] The present invention determines the main geometric parameters of a guide vane of a high-efficiency submersible flood fighting and rescue pump through the following formulas, including the outlet diameter D of the guide vane of the pump 4 , the number of blades z of the guide vane, the diameter of the hub of the guide vane d h , airfoil chord length l, diffusion angle θ, blade inlet displacement coefficient ψ, blade chord placement angle β L , guide vane height H, blade inlet placement angle β 1 , the blade outlet placement angle β 2 , guide vane line radius R, grid pitch t, ​​etc.

[0075] This embodiment is to calculate the main geometric parameters of the guide vane under the given design condition flow rate Q, design condition head H, and design condition speed n:

[0076]

[0077]

[0078] d h =1.3z+16H-0.3zH-0.5H 2 +57.05 (3)

[0079]

[0080]

[0081]

[0082]

[0083]

[0084] beta 1 =128.1sin(0.14β L +3.1)+65.13sin(0.2β L +14) (9) ...

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 relates to a design method of a guide vane of an efficient submersible type flood rescue pump. Design formulas of main geometric parameters of the guide vane are given: the outlet diameter D4 of the guide vane of the pump, the number z of the guide vanes, the hub diameter dh of the guide vane, the airfoil chord length l, the divergence angle theta, the vane inlet excretion coefficient psi, the chord setting angle betaL, the height H of the guide vane, the inlet setting angle beta1 of the vane, the outlet setting angle beta2 of the vane, the profile radius R of the guide vane, thepitch t and the like. By adopting the guide vane of efficient submersible type flood rescue pump, the hydraulic impact loss of the guide vane is reduced to a certain extent, and the stability of theflow state of water outlet liquid is greatly improved, so that the operation stability, the high efficiency and the economy of the submersible type flood rescue pump are increased, the sizes of hydraulic components can be matched with each other, the calculation is accurate, the theoretical design conforms to a real model, and the computer programming application and the computer aided design arefacilitated.

Description

technical field [0001] The invention relates to a design method of a guide vane of an axial flow pump, in particular to a guide vane of a high-efficiency submersible flood-fighting and emergency pump. The pump is mainly used in fields such as drainage, flood control, drought resistance, temporary water accumulation in municipal engineering, and emergency water transfer of rivers and reservoirs. Background technique [0002] Anti-flood emergency pumps are mainly used in fields such as drainage, flood control, drought resistance, temporary water accumulation in municipal engineering, emergency water transfer in rivers and reservoirs, etc. In addition, they can also be used for farmland irrigation and water for humans and animals in plateau mountainous areas, cities, factories, railways, mines, construction sites, etc. Water supply and drainage, extracting groundwater from deep wells, rivers, reservoirs, lakes and other water conservancy projects. Commonly used types of flood ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/54
CPCF04D29/548
Inventor 夏永忠阮明伟陈平朱荣生付强王秀礼
Owner TAIZHOU TAIFENG PUMP IND
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap