CN211116398U

CN211116398U - Vertical axis wind turbine blade and vertical axis windmill applying same

Info

Publication number: CN211116398U
Application number: CN201922050942.1U
Authority: CN
Inventors: 李光宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-07-28
Anticipated expiration: 2029-11-25

Abstract

The utility model provides a vertical axis wind turbine blade and applied vertical axis windmill of this blade, belongs to wind power generation technical field, the utility model discloses a solve horizontal axis blade and lift type blade power big more the blade longer anti wind poor, design complicacy, control and manufacturing difficulty, have the problem of high maintenance cost. Comprises a cylindrical rotating drum and a resistance blade; a plurality of resistance blades are distributed on the outer wall of the cylindrical rotating drum in an array mode, the resistance blades and the outer wall of the cylindrical rotating drum are attached to form a wind resistance cavity, the cross section of the wind resistance cavity is semicircular, a semicircular opening is formed in one end of the wind resistance cavity, a triangular opening is formed in the other end of the wind resistance cavity, and the triangular opening of each resistance blade is opposite to the semicircular opening of the connected resistance blade. The utility model discloses a vertical axis wind turbine blade simple structure reasonable anti-wind ability reinforce, receive the balanced operation noiselessness of wind power and vibrations, convenient maintenance long service life is ageing-resistant, and the minimum circular region that is vertical rotation in actual operation space.

Description

Vertical axis wind turbine blade and vertical axis windmill applying same

Technical Field

The utility model relates to a wind energy conversion system blade especially relates to a vertical axis wind energy conversion system blade and applied vertical axis windmill of this blade, belongs to wind power generation technical field.

Background

In recent years, in order to meet the energy requirements, the development of wind energy technology is mature and is widely popularized in a plurality of countries. The wind energy wind turbine blade is divided into a horizontal shaft and a vertical shaft, the vertical shaft wind turbine blade is divided into a resistance type and a lift type, the longer the horizontal shaft blade and the lift type blade are, the lower the wind resistance of the blade is, the design is complex, the control and the manufacture are difficult, and the high maintenance cost is realized; the resistance type blade has strong wind resistance capability due to the structure, is not influenced by cyclone and turbulence, has simple design and low maintenance and manufacturing cost, but has higher starting wind speed and the same wind condition tip speed ratio and the lowest wind energy conversion rate. Most wind turbine blades are too large in size, occupy too much space, and generate vibration and noise during operation to influence the surrounding environment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a vertical axis wind turbine blade and applied this blade's vertical axis windmill to solve horizontal axis blade and lift type blade power big more the longer anti wind energy of blade poor, design complicacy, control and manufacturing difficulty, have the problem of high maintenance cost.

A vertical axis wind turbine blade comprises a cylindrical rotating cylinder and a resistance blade;

a plurality of resistance blades are distributed on the outer wall of the cylindrical rotating drum in an array mode, the resistance blades and the outer wall of the cylindrical rotating drum are attached to form a wind resistance cavity, the cross section of the wind resistance cavity is semicircular, a semicircular opening is formed in one end of the wind resistance cavity, a triangular opening is formed in the other end of the wind resistance cavity, and the triangular opening of each resistance blade is opposite to the semicircular opening of the connected resistance blade.

Preferably: the outer wall of the resistance blade is a streamline outer wall, and the cross section of the wind resistance cavity is sequentially increased from a triangular opening to a semicircular opening.

Preferably: the inner wall of the cylindrical rotating cylinder is connected with an input shaft of a wind turbine.

A vertical axis windmill with vertical axis windmill blades comprises a vertical axis windmill, wherein the vertical axis windmill blades are arranged on an input shaft of the vertical axis windmill.

The utility model discloses compare with current product and have following effect:

the utility model discloses the difficult characteristic that takes place deformation toughness height of make full use of cylinder type makes the dryer have stronger high-speed rotatory not fragile of wind-resistance. The distance between the central point of the blade and the central point of the rotating drum is short, so that the centrifugal force is reduced and the stress is stable when the rotating drum rotates, and therefore, the rotating drum has no noise and vibration during operation and small rotating space. The openings at the tail parts of all the blades are consistent in direction and are arranged in a multi-row mode to surround the outer side of the rotary drum, so that the number of the blades is large, the whole wind area is increased, the tip speed ratio is improved, and the starting wind speed is reduced. The vertical shaft resistance type blade does not need to influence wind and whirlwind and turbulence when the wind direction changes, gets rid of the fact that a complex variable pitch mechanism generates high wind energy utilization rate on the basis of saving design and control cost, occupies small space and has strong severe environment adaptability.

Drawings

FIG. 1 is a schematic view of a vertical axis wind turbine blade;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a front view of the drag blade;

FIG. 4 is a top view of FIG. 3;

fig. 5 is a right side view of fig. 3.

In the figure, 1 is a cylindrical rotating cylinder, 2 is a resistance blade, 21 is a semicircular opening, and 22 is a triangular opening.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1 to 5, the vertical axis wind turbine blade disclosed in the present embodiment includes a cylindrical rotating drum 1 and a resistance blade 2;

array distribution has a plurality of resistance blades 2 on the outer wall of cylindrical rotary drum 1, and the outer wall laminating of resistance blade 2 and cylindrical rotary drum 1 forms the choke chamber, and the cross section in choke chamber is semi-circular, and the one end in choke chamber is equipped with semi-circular opening 21, and the other end in choke chamber is equipped with triangle-shaped opening 22, and the triangle-shaped opening 22 of every resistance blade 2 all sets up with the semi-circular opening 21 of continuous resistance blade 2 relatively.

Further: the outer wall of the resistance blade 2 is a streamline outer wall, and the cross section of the wind resistance cavity is sequentially increased from a triangular opening 22 to a semicircular opening 21.

Further: the inner wall of the cylindrical rotating drum 1 is connected with an input shaft of a wind turbine.

The cylindrical rotating drum 1 is a hollow thin-wall structure, wherein the inner wall is connected with an input shaft of a generator or a wind turbine, the outer wall bears all the resistance blades 2, the front blade tips of the resistance blades 2 are provided with triangular openings, the rear blade tips are provided with semicircular openings, the diameters of the blade tip openings of the resistance blades 2 are larger than those of the blade tip openings, the inner wall forms a wind resistance cavity, the outer wall is streamline,

due to the structure, the wind driven generator with the wind barrel type blades is convenient to install on the outer wall of circular objects such as street lamps, telegraph poles and the like, has attractive appearance and cannot influence the surrounding environment, or is directly used on a vertical axis wind driven generator.

This embodiment is only illustrative of the patent and does not limit the scope of protection thereof, and those skilled in the art can make modifications to its part without departing from the spirit of the patent.

Claims

1. A vertical axis wind turbine blade is characterized in that: comprises a cylindrical rotating drum (1) and a resistance blade (2);

the utility model discloses a wind resistance device, including cylindrical rotary drum (1), array distribution has a plurality of resistance blade (2) on the outer wall of cylindrical rotary drum (1), and resistance blade (2) form the chamber of holding up wind with the outer wall laminating of cylindrical rotary drum (1), and the cross section in chamber of holding up wind is semi-circular, and the one end in chamber of holding up wind is equipped with semi-circular opening (21), and the other end in chamber of holding up wind is equipped with triangle-shaped opening (22), and triangle-shaped opening (22) of every resistance blade (2) all set up with semi-circular opening (21) of continuous resistance blade (.

2. The vertical axis wind turbine blade as claimed in claim 1, wherein: the outer wall of the resistance blade (2) is a streamline outer wall, and the cross section of the wind resistance cavity is sequentially increased from a triangular opening (22) to a semicircular opening (21).

3. The vertical axis wind turbine blade as claimed in claim 1 or 2, wherein: the inner wall of the cylindrical rotating drum (1) is connected with an input shaft of a wind turbine.

4. A vertical axis windmill applying vertical axis windmill blades comprises a vertical axis windmill and is characterized in that: the input shaft of the wind turbine of the vertical shaft windmill is provided with vertical shaft wind turbine blades.