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

Loss-reducing fan blade with bent blade tip and processing method thereof

A technology of fan blades and processing methods, which is applied in the direction of mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problems of difficult research and development, long effect cycle, and high research and development costs, so as to improve energy conversion efficiency, improve efficiency, and structure simple effect

Active Publication Date: 2020-06-30
ZHEJIANG SHANGFENG SPECIAL BLOWER IND CO LTD
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The improvement of the efficiency of the existing axial flow fan is mainly to change the structure of the fan and design a new blade shape, but this method is difficult to develop, the cost of research and development is high, and the effect period is long

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
  • Loss-reducing fan blade with bent blade tip and processing method thereof
  • Loss-reducing fan blade with bent blade tip and processing method thereof
  • Loss-reducing fan blade with bent blade tip and processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0031] Such as Figure 1-3 As shown, a consumption-reducing fan blade with a curved blade tip includes a blade main body 1, a blade tip 2 and a collar 3. The blade main body is provided with a pressure surface 11 and a suction surface 12; the blade main body is close to the The distance between one end of the collar and the end of the bl...

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 loss-reducing fan blade with a bent blade tip and a processing method thereof. The fan blade comprises a blade body, the blade tip and a lantern ring, wherein a pressure surface and a suction surface are arranged on the blade body; the distance between the end, close to the lantern ring, of the blade body and the end, away from the lantern ring, of the blade tip is L1; the blade tip comprises a bent part and a blade tip body; the distance between the end, away from the lantern ring, of the blade tip body and the end, close to the lantern ring, of the blade body is L2,and L2:L1 is greater than 95:100. At the unit cross section of the blade tip, the bending angle of the bent part relative to the blade tip body is 30 DEG, and the bending distance of the end of the bent part relative to the blade tip body is 10 mm. The fan blade has the advantages of being simple in structure, easy to implement, wide in applicability and capable of economically and effectively improving the efficiency of an axial flow fan and reducing the energy loss.

Description

technical field [0001] The invention relates to the technical field of fans, in particular to a consumption-reducing fan blade with a curved blade tip and a processing method thereof. Background technique [0002] As my country's industrialization process continues to accelerate, as a general-purpose machine that converts the mechanical energy of the prime mover into gas energy, fans are widely used in electric power, transportation, fire protection and other fields, and it is imminent to improve their efficiency. The improvement of the efficiency of the existing axial flow fan is mainly to change the structure of the fan and design a new blade shape, but this method is difficult to develop, the cost of research and development is high, and the effect cycle is long. Therefore, there is an urgent need for a way to improve the efficiency of the axial flow fan by improving the existing blade shape without changing the original fan structure and reducing the difficulty and cost ...

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): F04D29/38B05B14/46B05B16/40B05B13/02B05B13/04
CPCB05B13/0221B05B13/0421B05B14/46B05B16/40F04D29/386
Inventor 胡伟锋邵准远李林林竹渝晓
Owner ZHEJIANG SHANGFENG SPECIAL BLOWER IND CO LTD
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