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

Axial flow fan 3D impeller with vein structure and splitter blades

A technology of split vane and axial flow fan, which is applied to the components, pump elements, mechanical equipment, etc. of the pumping device for elastic fluid to achieve the effect of improving the degree of reaction, ensuring normal operation, and suppressing the intensity of turbulence.

Pending Publication Date: 2017-06-13
ZHEJIANG SCI-TECH UNIV
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is to propose a new type of axial flow fan with vein-like structure and splitter blades by controlling and reducing secondary flow, boundary layer separation, wake vortex and vortex noise. impeller

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
  • Axial flow fan 3D impeller with vein structure and splitter blades
  • Axial flow fan 3D impeller with vein structure and splitter blades
  • Axial flow fan 3D impeller with vein structure and splitter blades

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1. A new three-dimensional impeller for an axial flow fan with a vein-like structure and splitter blades, as shown in the figure, includes a hub, a curved and twisted blade 1 fixedly connected to the hub, splitter blades 2, a shaft sleeve 3 and a connecting piece 4 .

[0030] The curved and twisted blade 1 includes a suction surface 18 and a pressure surface 19. The top of the suction surface 18 of the curved and twisted blade 1 is provided with a vein-shaped groove 15, and the rear end of the curved and twisted blade 1 is provided with a winglet protrusion 13. The vein-shaped groove 15 includes at least Two veins, the installation angle at the root of the twisted blade 1 is large, and the installation angle at the top is small (the installation angle is the angle between the rotation plane at the radius r of the curved blade 1 and the chord length of the airfoil, determined by β1 and β2), to ensure that the air has a relatively uniform axial velocity at each...

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 an axial flow fan 3D impeller with a vein structure and splitter blades. The axial flow fan 3D impeller comprises a hub, a connector for a shaft sleeve, twisted and bowed blades and the splitter blades, wherein the twisted and bowed blades are fixedly connected with the hub; each twisted and bowed blade comprises a suction surface and a pressure surface; a wing-shaped groove is arranged in the top of each twisted and bowed blade; a vein-shaped groove is arranged in the upper half part of the pressure surface of each twisted and bowed blade; each wing-shaped groove communicates with the corresponding vein-shaped groove through an air outlet; a small wing bump is arranged at the tail part of the suction surface of each twisted and bowed blade; small parabolic holes are arranged in the twisted and bowed blades; one splitter blade is arranged between two adjacent twisted and bowed blades; and the heights of the splitter blades are smaller than one half of the lengths of the twisted and bowed blades.

Description

technical field [0001] The invention relates to the design field of an axial flow fan, in particular to a novel three-dimensional impeller of an axial flow fan with a vein-like structure and splitter blades. Background technique [0002] The working principle of the axial flow fan is to use the mechanical energy input by the motor to increase the pressure of the gas to transport and discharge the gas. Axial flow fans play a role in various fields of the national economy, widely used in factories, mines, vehicles, boats and buildings, etc., and play an irreplaceable role in ventilation, dust removal and cooling. According to incomplete statistics, all countries in the country The annual power consumption of wind turbines accounts for 20% of the country's power generation. Many of the wind turbines are either old or low in efficiency, resulting in a serious waste of electricity. It can be seen that improving the performance of wind turbines to achieve energy conservation is im...

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): F04D29/32F04D29/38F04D29/66
CPCF04D29/325F04D29/38F04D29/386F04D29/666F04D29/682F04D29/684F04D29/384
Inventor 窦华书杨徽李红军杨鹏徐金秋王天垚
Owner ZHEJIANG SCI-TECH UNIV
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