Unlock instant, AI-driven research and patent intelligence for your innovation.

Vane wheel device

An impeller and blade technology, applied in the field of fan components, can solve the problems of high noise, low efficiency, and many consumables, and achieve the effects of low noise, high efficiency, and reduced material loss

Inactive Publication Date: 2013-05-22
HUAZHONG UNIV OF SCI & TECH
View PDF7 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides an impeller device, which solves the problems of low efficiency, high noise and many consumables of the existing fan impeller device

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
  • Vane wheel device
  • Vane wheel device
  • Vane wheel device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Embodiment 1: The diameter of the impeller is 700mm, the hub ratio is 0.3, as shown in Figure 4 (B), the blade height is 243mm, and the stacking line on the circumferential surface has a radius of 512mm (ratio to the outer diameter of the impeller is 1.46). The arc is bent forward at an angle of 15°; on the circumferential surface, from the root of the blade to the blade height of 0.92 (223mm), a circular arc with a radius of 675mm (1.93 to the outer diameter of the impeller) is used, and an angle of 10° is swept forward. From the blade height of 0.92 (223mm) to the tip of the blade, a swept back arc with a radius of 35mm (the ratio to the outer diameter of the impeller is 0.1) is adopted.

Embodiment 2

[0057] Embodiment 2: The diameter of the impeller is 500 mm, the hub ratio is 0.3, and the blade height is 175 mm. The overlapping line on the circumferential surface adopts a circular arc with a radius of 345 mm (the ratio to the outer diameter of the impeller is 1.38), and an angle of 18° is bent forward; On the circumferential surface, from the root of the blade to the height of 0.9 blades (158mm), a circular arc with a radius of 475mm (ratio to the outer diameter of the impeller is 1.9), swept forward at an angle of 12°, from the height of 0.9 blades (158mm) to the top of the blade A swept-back arc with a radius of 30mm (ratio to the outer diameter of the impeller is 0.12) is used.

Embodiment 3

[0058] Embodiment 3: The diameter of the impeller is 910mm, the hub ratio is 0.27, and the blade height is 664mm. The overlapping line on the circumferential surface adopts a circular arc with a radius of 682mm (the ratio to the outer diameter of the impeller is 1.5), and the forward bend angle is 20°; On the circumferential surface, from the root of the blade to the blade height of 0.95 (630mm), a circular arc with a radius of 887mm (the ratio of the outer diameter of the impeller is 1.95), swept forward at an angle of 10°, from the blade height of 0.95 (630mm) to the blade top At the position, a swept-back arc with a radius of 36.5mm (ratio to the outer diameter of the impeller is 0.08) is 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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a vane wheel device and belongs to the field of fan component parts. The vane wheel device solves the problems that a prior vane wheel device of a fan is low in efficiency, large in noise and large in material consumption. The vane wheel device comprises a hub and a plurality of vanes evenly distributed on the hub. The hub is composed of a front hub plate and a rear hub plate. Each vane is composed of a vane rod and a vane body which are combined as a whole. An airfoil profile of each vane body is a C4 airfoil profile and a gravity center stacking line of each vane body is a three-dimensional curve. Vane rod front grooves are evenly distributed along an outer circumference of the front hub plate and vane rod rear grooves corresponding to the vane rod front grooves in position are formed along an outer circumference of the rear hub plate. The front hub plate and the rear hub plate are connected through a bolt, so that the vane rods of the vanes are limited in the hubs. The vane wheel device is simple in structure, convenient to produce, easy to install, capable of enabling a vane installation angle to be adjusted according to working conditions, large in air quantity, high in wind pressure and efficiency, low in noise and suitable for being widely used in ventilation systems of various factories, warehouses and buildings and air supplying and air inducing systems of other industries.

Description

technical field [0001] The invention belongs to components of a fan, in particular to an impeller device of a fan. Background technique [0002] At present, most of the fan impellers used in the ventilation systems of factories, warehouses and buildings, as well as other industrial air supply and induction systems are designed using traditional design methods, which have low efficiency, high noise, and high consumption of materials. The waste is large, which is not conducive to energy saving and emission reduction. [0003] In addition, the curved-swept blade technology has been widely used in aviation engines and high-pressure ratio axial flow compressors. It has been proved by experiments that this technology has the characteristics of reducing noise and improving the mechanical performance of the impeller. Applying this technology to industrial and civil fans to develop a new type of high-efficiency and low-noise general-purpose fan impeller has great application value. ...

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): F04D29/38F04D29/32
Inventor 王军李业蔡涛王渴
Owner HUAZHONG UNIV OF SCI & TECH