CN115013239A

CN115013239A - Airship type blade vertical axis wind power generation device

Info

Publication number: CN115013239A
Application number: CN202110242528.XA
Authority: CN
Inventors: 孙明
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-04
Filing date: 2021-03-04
Publication date: 2022-09-06

Abstract

The invention relates to an airship type blade vertical axis wind power generation device, which adopts the design of air buoyancy blade traction and supporting cantilevers, wherein the blades are in the shape of rectangular plates distributed according to hydrodynamic force and the outline of the blades is vertical to the ground when in work. The scheme is characterized in that the speed reducer and the generator are designed to be grounded, and the cantilever is pulled outwards and upwards by the buoyancy of the blade in a small tower column or without the tower column. The impeller is provided with three uniformly distributed cantilevers which extend from the inside to the outside and are connected with blades. The middle part is a triangular grid structure body which is connected with a gearbox inwards and transmits the wind energy collected by the impeller to a generator. The interior of the blade is of a hollow structure and is filled with helium or hydrogen gas bags, so that the blade can float in the air. For small and medium-sized wind motors, only one blade needs to be installed on each cantilever. However, for large and ultra-large wind turbines, two or more blades should be installed, the blades in the middle are large in size, large buoyancy can be generated to support cantilevers on two sides, the cantilevers are connected through hinges, the cantilevers can continuously extend outwards through the hinges, and conditions are created for high-power machine design.

Description

Airship type blade vertical axis wind power generation device

Technical Field

The invention belongs to the technical field of wind power generation equipment, and particularly relates to a vertical axis wind power generation device with a generator grounded and a buoyancy blade provided with a helium or hydrogen gas bag.

Background

At present, a wind driven generator on a wind power plant is a giant vane type, the outer diameter of the vane is continuously increased, the radius of the vane exceeds 80 meters at present, the requirement on the strength of the vane is extremely high, the manufacturing cost is very high, the transportation, the installation and the maintenance are difficult, a tower column for installing the vane and the impeller is as high as 160 meters or even higher, the manufacturing cost and the cost are obvious and very high. In addition, during the running process of the impeller, the impeller generates huge turbulence, which causes huge resistance, and the wind power utilization rate is not high.

Disclosure of Invention

The invention relates to a wind energy collecting and generating device vertical to the ground, which mainly comprises: the gearbox and the generator that fall to the ground, airship formula blade and the spatial grid structure cantilever that outwards upwards extends from taking buoyancy.

The design has the obvious characteristics of small or no tower column, gear box and generator landing. The impeller has three equipartition spatial grid structure cantilevers to extend from inside to outside, and the center is triangle spatial grid structure, and the internal connection is to the gearbox, and the impeller passes through the gearbox with the wind energy of collecting and transmits for the generator.

The impeller is designed with a boat-type blade, one side of the blade is an arc-shaped plate, and the other side of the blade is a closed structure of a straight plate. The structure is designed according to an aerodynamic lift force structure, when wind flows through the blade, outward tension is generated due to flow speed difference, and power output of the blade is increased. The blades are of hollow structures, helium or hydrogen air bags are filled in the blades, and buoyancy can be generated by air.

The middle part of the impeller is designed as a net rack cantilever, and only one outermost blade is arranged for the medium and small wind motor. For large and very large wind turbines, two or more blades should be provided. The blade in the middle part supports the cantilevers on the two sides by means of self buoyancy. The vanes are connected with the central net rack cantilever by a hinge. The cantilevers of the multi-stage blades are also connected by hinges. In order to guarantee that the cantilever outwards upwards extends along same direction and angle, hinged joint department is equipped with the limiting plate. When the blade needs to be maintained, the blade can be pulled to the grounding height through the rope, so that the operation is convenient.

The mesh-shaped component and the cantilever of the impeller are made of high-strength light steel or aluminum alloy materials so as to meet the design requirements of high strength and light weight. This rack geometry adopts the optimization triangle structure to make whole rack mechanism firmer.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, it is obvious that the drawings in the following description are only for more clearly illustrating the embodiments of the present invention or the technical solutions in the prior art, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a front view of the device of the present invention

FIG. 2 is a top view of the apparatus of the present invention

In the figure: 1. gearbox, 2. inner cantilever, 3. first hinge, 4. inner blade cantilever, 5. inner blade, 6. second hinge, 7. middle blade cantilever, 8. middle blade, 9. outer blade, 10. generator

Detailed Description

In order to make the technical solutions of the present invention better understood and practical for those skilled in the art, the present invention is further described with reference to the following specific examples, which are provided for illustration only and are not intended to be limiting.

As shown in fig. 1 to fig. 2, the wind power collecting and generating device perpendicular to the ground is mainly composed of: the impeller comprises a central grid structure of an impeller, cantilevers (2), hinges (3) and (6) for connecting the cantilevers, airship type blades (5) and (8) and (9) on two sides, cantilevers (4) and (7) on two sides, a gearbox (1) and a generator (10).

After the power generation device is installed, the wind energy can be absorbed through the excellent pneumatic blades (5), (8) and (9), and due to the suspension type blades of the design, the impeller cantilever can be increased in sections to be longer, so that a new way for increasing the output power of the impeller and increasing the output power of the impeller in a super-large mode is developed.

Under the push of wind power, the impeller rotates to transmit wind energy to the gearbox (1), and the gearbox gear further drives the generator (10) to work.

In order to increase the wind resistance and stability of the design, the center of the impeller is designed into a large flat net structure. For the outer cantilever, if the outer cantilever is designed with a plurality of blades, the volume of the inner blade is larger, the generated buoyancy is also large, and the cantilevers at two sides can be supported. When the impeller rotates, the speed of the outermost blade (9) is relatively high, so that the whole volume of the outer blade is small so as to reduce resistance.

As an optimization selection, the number of the cantilevers is three, and the cantilevers are uniformly distributed along the center of the impeller, so that the number of the blades is generally three or integral multiples of three.

When the number of the blades arranged on each cantilever reaches two or more, the cantilevers are designed into an inner part and an outer part, the inner cantilever is integrated with the central net rack, the outer cantilever is integrated with the middle blade, and the inner cantilever and the outer cantilever are connected through hinges (3) and (6). If maintenance of the blade is required, the outer boom can be pulled to ground level by a rope for ease of handling.

The cantilevers of the multi-stage blades are connected by a hinge. In order to ensure that the cantilever outwards and upwards extends along the same direction and angle, the hinge joint is provided with a limiting device.

This design is in order to create good condition for implementing, and netted component adopts light high strength material, and easily installation, and the cantilever can be designed into a plurality of widgets to make, transport, installation and maintenance.

The key protection points of the invention are as follows:

the impeller of the design is a net frame member, the three cantilevers extend from the middle part of the impeller to the outside of the impeller, and the impeller is made of high-strength light steel or aluminum alloy materials so as to meet the design requirements of high strength and light weight. This rack geometry adopts and optimizes the triangular structure, and whole main structure also is the triangle to make whole rack mechanism firmer, also created the advantage for making the wind power equipment of maximization.

The impeller cantilever of this scheme adopts inside and outside two parts design, and interior cantilever adopts hinged joint with outer cantilever. The outer cantilever and the blade are pulled to the grounding position by pulling the rope, so that the maintenance is convenient.

The blade of present case is the hollow design of airship formula, and helium or hydrogen gasbag are filled to the inside, and the blade is from taking buoyancy, can hold up the cantilever of both sides. The cantilevers are connected through the hinge, the design creates feasible conditions for the cantilevers of the impeller to continuously extend outwards, and a new way is designed for the large-scale and ultra-large-scale of the wind driven generator.

In order to greatly reduce the manufacturing, transportation and maintenance costs, the design has the outstanding characteristics of the layout of a floor type gearbox and a generator,

the invention is not described in detail in the prior art.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A wind energy collecting and generating device with an impeller main shaft perpendicular to the ground is mainly composed of a gearbox (1), an impeller center net rack and a cantilever (2) which are of a flat structure, hinges (3) and (6) for connecting the cantilever, blades (5), (8) and (9) with buoyancy, blade cantilevers (4) and (7), and a generator part (10).

2. A vertical axis wind power plant as defined in claim 1, the reduction gearbox (1) and the generator (10) of the present case being of a grounded design, requiring only a small or no tower.

3. A vertical axis wind turbine according to claim 1, wherein the rotor is a large grid structure with a triangular mesh structure at the center, and is connected to the gearbox (1) inwards, and the rotor transfers the collected wind energy to the generator (10) through the gearbox.

4. An impeller according to claim 3, wherein three equispaced arms (2) are designed to extend outwardly and are connected to each arm by a hinge. The outer boom may be pulled down to ground level by a rope to facilitate maintenance of the blade and boom.

5. The impeller of claim 4, wherein the outer side of each blade on the impeller is an arc-shaped plate, and the inner side of each blade on the impeller is a closed structure of a straight plate, and the structure is designed according to an aerodynamic lifting force structure. As wind flows across the blade, outward tension is created due to the flow velocity difference, increasing the power output of the blade.

6. The blade according to claim 5, wherein the blade is designed to be hollow, filled with helium or hydrogen gas bags, and supported by the suspension beams on two sides through air buoyancy. The volume of the blade in the cantilever is large, and the volume of the blade outside the cantilever is small.

7. The vertical axis wind power generation device of claim 1, wherein the structure design adopts optimized triangle structure from whole to part, thus the power generation device becomes a firm community, the risk resistance is greatly enhanced under the condition of controllable cost, and a new economic solution is provided for the upsizing of the wind power generator.

8. The impeller of claim 4, wherein in order to increase the power of the generator, cantilevers capable of extending outward are designed, the cantilevers are connected through a hinge, and a limit plate is arranged on the hinge, so that all the cantilevers are ensured to be positioned at the same axis and extend outward in the same direction and angle.