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Universal fan blade

A technology of wind impellers and profiles, applied in wind power generation, wind engines, wind turbine components, etc., can solve problems such as low wind efficiency, difficulty in operation and maintenance, increased workload, high operating noise and loss, and achieve high wind power Efficiency, operation and maintenance difficulty and workload reduction, and the effect of simple blade structure

Inactive Publication Date: 2010-11-24
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing universal wind impeller is a frame-type unidirectional vertical turbofan structure, which can realize the wind power independent of the wind direction, but its wind power efficiency is very low
The recently developed universal wind impeller is a structure with a large leaf fan and a small movable leaf fan. Although it can realize the wind power function independent of the wind direction and high wind power efficiency, its complex blade structure will make operation and maintenance difficult and difficult. Increased workload, but also high operating noise and wear

Method used

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Embodiment Construction

[0012] exist figure 1 , figure 2 , image 3 and Figure 4 In the structural view of the universal fan impeller shown: the universal fan impeller is mainly composed of several reinforced glass plastic (GRP) material fan blades, and each fan blade is divided into an upper guide blade section 1, a main windward turbine fan blade section 2 and a The three sections of the lower guide vane section 3 form a curved sheet body with an inner concave vortex surface and an outer convex ridge surface; each blade is fixed on the column side of the rotor-shaft structure 4 according to the same direction of the inner concave vortex surface, And according to the axial direction, make the included angles of the connecting lines from the outer edge to the inner edge of every two blades equal, and make the connecting line from the midpoint of the upper top edge of each blade to the midpoint of the lower top edge radially parallel to the axis line.

[0013] exist figure 1 In the front view of...

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Abstract

The invention discloses a universal fan blade with a compact structure. The universal fan blade can realize the wind powder actuating function unrelated to the wind direction and high wind power efficiency, and makes operating maintenance difficulty and workload greatly reduced through the concise blade structure. The universal fan blade consists of a plurality of fan blades fixed on a rotor-shaft structure; each fan blade is separated into three sections, namely an upper wind guiding blade section, a main windward turbofan blade section and a lower wind guiding blade section to form a curved blade body with a concave vortex surface and a convex protruding surface. In spite of the wind direction, one side of the axis of the fan blade is the high windage side, while the other side is the low windage side, so the rotating power is generated.

Description

technical field [0001] The invention relates to a wind impeller of a wind power engine. Background technique [0002] At present, the wind impellers of almost all wind turbines or other wind-powered wind impellers are driven in one direction, and their wind efficiency is guaranteed by constantly adjusting the windward or downwind direction, which makes the structure of the wind power engine system complicated, so that additional Set the wind direction follow-up control system. Like this, not only cause cost to raise, but also can make running cost raise, work efficiency reduces. Especially for high-power system wind turbines, even with an excellent wind direction follow-up control system, it is difficult to achieve high-sensitivity follow-up of rapid and frequent wind direction changes. Therefore, it is an urgent problem to be solved urgently to develop a kind of wind-driven engine which has nothing to do with the wind direction. The existing universal wind impeller is a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D11/00
CPCY02E10/722
Inventor 屈百达
Owner JIANGNAN UNIV