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Passive rectifying device applied to double vertical axis fans

A technology of rectification device and vertical axis, which is applied in the direction of wind turbines, wind turbines, machines/engines, etc. at right angles to the wind direction, which can solve problems such as difficulty in starting and influence on power generation efficiency, and achieve the effect of avoiding additional loads

Pending Publication Date: 2018-03-06
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the existence of the upwind area, the vertical axis fan is difficult to start at low wind speed, and the power generation efficiency is also affected after startup.

Method used

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  • Passive rectifying device applied to double vertical axis fans
  • Passive rectifying device applied to double vertical axis fans
  • Passive rectifying device applied to double vertical axis fans

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0021] figure 1 , 2 A structural diagram of a passive rectifying device applied to a double vertical axis fan is shown. In the figure, the passive rectifying device applied to the double vertical axis fan includes a vertical shaft 8, a base 8a, a vertical axis fan, a frame for installing the vertical axis fan, and a rectifying device arranged on the frame. The vertical shaft 8 is fixedly connected to the base 8a, and the vertical axis fan includes a first vertical axis fan 1 and a second vertical axis fan 2 . The frame includes a lower support frame 6, an upper support frame 7 and a vertical support rod 5, the center of the lower support frame 6 is provided with a lower support frame bearing 6b, and t...

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Abstract

The invention discloses a passive rectifying device applied to double vertical axis fans, and belongs to the technical field of wind power generation. The passive rectifying device applied to the double vertical axis fans comprises the two vertical axis fans, a supporting platform used for mounting the vertical axis fans, and a rectifying device arranged on a framework. When the passive rectifyingdevice is utilized, the rectifying device is firstly in contact with air, a part of air is forced to change direction, wind velocity in the middle zones of the fans is decreased, and wind velocity onthe two sides is increased; and resistance of blades in an adverse wind zone is reduced through a rectified wind filed, thrust of the blades in a favorable wind zone is improved, the purpose of increasing the rotation speed of the fans is achieved, and starting wind velocity of the fans can be effectively decreased.

Description

technical field [0001] The invention relates to a passive rectifying device applied to a double vertical axis fan, belonging to the technical field of wind power generation. Background technique [0002] Wind energy is an inexhaustible renewable resource. my country has huge wind energy reserves: about 253 million kilowatts of wind energy can be developed and utilized on land, and about 750 million kilowatts of wind energy can be developed and utilized at sea. Compared with horizontal-axis fans, vertical-axis fans have the advantages of simple structure, flexible installation, convenient maintenance, small footprint, safety and stability, and low accident rate. Wind turbines can generate electricity efficiently. Therefore, when people find it difficult to further expand the power generation efficiency of the horizontal axis fan, more and more attention is turned to the vertical axis fan. However, because the traditional vertical axis wind turbine receives wind from a sing...

Claims

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Application Information

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IPC IPC(8): F03D3/04
CPCF03D3/0436Y02E10/74
Inventor 姜宜辰李嘉文陈慧邹丽孙铁志宗智张桂勇卢政也金国庆胡官清
Owner DALIAN UNIV OF TECH
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