Passive jet method and device for enhancing vertical shaft wind mill performance

A wind turbine, vertical axis technology, applied to wind turbines, wind turbines, wind turbine components and other directions at right angles to the wind direction, can solve problems such as energy consumption, and achieve the effects of reducing starting wind speed, stable effect, and improved power coefficient

Inactive Publication Date: 2009-08-19
申振华
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  • Application Information

AI Technical Summary

Problems solved by technology

In the Chinese patent application CN200410021580.9 (an air intake mechanism for a vertical axis wind turbine), it has been mentioned that the vertical axis wind turbine utilizes air jets to improve its performance, but what it refers to is the use of an auxiliary device——a blower to feed The wind turbine feeds and generates jets, trying to exchange a small amount of energy for greater energy gains, so it is an active jet method that consumes additional energy

Method used

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  • Passive jet method and device for enhancing vertical shaft wind mill performance
  • Passive jet method and device for enhancing vertical shaft wind mill performance
  • Passive jet method and device for enhancing vertical shaft wind mill performance

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Embodiment

[0024] refer to figure 1 , the wind wheel of the wind turbine in the present invention is composed of blades 50, blade support rods 40, vertical shaft 30, air intake device 20 and exhaust device 60, the air intake device 20 is set with the vertical shaft 30 through the bearing 70, and can be aligned at any time Wind direction; vertical shaft 30, support rod 40, blade 50 and exhaust device 60 are all hollow, and as air flow channel, there are holes identical with the number of support rod 40 on the pipe wall of vertical shaft 30, and their holes communicate, and Reliable connection; the exhaust device 60 connects the blades 50 and the support rods 40 respectively; the holes on the support rods 40 communicate with the holes on the exhaust device 60 to form jets 64 in the opposite direction of wind turbine rotation. The natural wind 10 blows the vertical axis wind turbine to rotate and do work. After the natural wind 10 enters the air intake device 20, it enters the hollow verti...

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Abstract

The invention relates to a passive gas jet method and a device for improving performances of a vertical axis wind turbine. When natural wind enters an inlet duct always installed facing the downwind direction, passes through a hollow steadying bar and is sprayed out of an air exhausting device installed at the external end or a thrust nozzle of a blade at the opposite direction to the rotation of a windmill, extra force moment for pushing the windmill to rotate is generated completely without any extra power consumption. The method not only obviously improves the output efficiency of windmill but also reduces the starting wind velocity and enlarges the operating range, thereby obviously reducing the generating cost. The invention belongs to the fields of windmill design, manufacture and application.

Description

technical field [0001] The present invention relates to a vertical-axis wind turbine whose performance is improved by passive air jet method, specifically, a method for generating jet thrust at an appropriate position and direction on a certain component or blade of the vertical-axis wind turbine to improve the aerodynamic performance of the wind turbine , which belongs to the field of wind turbine design, manufacture and application. Background technique [0002] Wind energy is one of the most promising, most realistic, fastest-growing and relatively mature clean renewable energy sources. As a wind turbine utilizing wind energy, the main factor restricting its development is the high cost and selling price of wind power. Therefore, as far as the way out of wind energy utilization is concerned, significantly increasing the power coefficient of wind turbines is the most fundamental and effective measure to greatly reduce the cost of wind power generation. [0003] The horiz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D3/00F03D3/04F03D11/02F03D11/04
CPCY02E10/72Y02E10/728Y02E10/74Y02P70/50
Inventor 申振华
Owner 申振华
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