CN109630352B

CN109630352B - Air compression type vertical wind generating set

Info

Publication number: CN109630352B
Application number: CN201910108024.1A
Authority: CN
Inventors: 龚水明; 金在浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-02-02
Filing date: 2019-02-02
Publication date: 2020-05-26
Anticipated expiration: 2039-02-02
Also published as: CN109630352A; KR102607262B1; WO2020156449A1; KR20220041776A

Abstract

The invention discloses an air compression type vertical wind generating set. The device comprises a support frame, a main shaft, blades, an upper blade column, a lower blade column, an upper cover, a transmission, an air compressor, an air storage tank, a power generation component and an access door. The main shaft is vertically arranged in the center of the support frame, the blades are provided with small supporting wings and large supporting wings and are fixed between the upper blade columns and the lower blade columns to form blade fixing components, and the blade fixing components are uniformly distributed and vertically arranged along the circumferential direction of the main shaft and rotate with the wind. The collected wind energy drives the main shaft to rotate to obtain mechanical energy, the mechanical energy is changed in speed by the speed changer and then drives the air compressor to inflate the air storage tank, and the air storage tank drives the power generation component to generate power by the stored compressed air. The contact surface of the blade and wind energy is large, the conversion efficiency is high, the blade is light in weight, thinner in thickness and better in durability. The generator can still generate power in breeze, no wind and hurricane, flexibly adjust the generated energy and time, and has the advantages of stable power generation, simple structure, low cost, convenient maintenance and wide market prospect.

Description

Air compression type vertical wind generating set

Technical Field

The embodiment of the invention relates to the technical field of wind power, in particular to an air compression type vertical wind generating set.

Background

Wind energy is a clean and pollution-free renewable energy source, has huge reserves, and is very environment-friendly by utilizing wind power to generate electricity, so that the wind energy is increasingly paid attention by various countries in the world.

The most utilized form in the world of wind power generation equipment at present is a horizontal wind power generator which mainly comprises a wind wheel, a gear box, a generator, a tail vane and a tower frame. The wind wheel comprises a windmill blade and a main shaft, the main shaft connects the windmill blade and a gear box in a linkage mode, wind power drives the windmill blade to rotate, the kinetic energy of wind is converted into mechanical energy of the rotation of the main shaft by the rotating windmill blade, the rotating speed of the main shaft is accelerated by the gear box and then is transmitted to a generator, and the generator converts the mechanical energy into electric energy, so that power generation is realized. In the wind turbine generator having such a structure, since the wind turbine blades, the gear box, and the generator are all disposed at the top end of the tower, the wind turbine blades, the gear box, and the generator are difficult to maintain and the maintenance cost is too high when the wind turbine blades, the gear box, the generator, and other devices are broken down due to weather, regions, or terrain.

The rotating speed of the windmill blades of the horizontal wind driven generator can change along with the wind speed and the wind direction, when the wind power is less than 5m/s, the windmill blades do not rotate, so that the wind power cannot generate electricity, and when the wind power is more than 25m/s, the rotating speed of the windmill blades is too high due to the strong wind pressure of typhoons or hurricanes, the generator is operated in an overload manner, equipment can be damaged due to overheating, and even fire disasters can be caused. In addition, the wind speed is not attenuated, the power generation amount is unstable, and a pulsation phenomenon occurs. And in order to keep the windmill blades aligned with the wind direction all the time to obtain maximum power, a tail vane similar to a wind vane needs to be installed, and a matched power transmission tower needs to be established, so that the cost of the wind driven generator is increased and the structure is complicated. In addition, the horizontal windmill blade has a short life cycle because of its limited durability when changing wind power.

At present, vertical wind power generation equipment is also researched and reported, but the existing vertical wind power generation equipment does not generate moment because blades run in the same circle, has low overall efficiency and low blade durability, is difficult to control the speed during overspeed, is easy to damage and is difficult to automatically start.

Disclosure of Invention

Therefore, the embodiment of the invention provides an air compression type vertical wind generating set, which aims to solve the problems of generating pulsation caused by wind speed and wind direction change and equipment damage and difficult maintenance caused by strong wind pressure in the prior art, simplify the structure, reduce the production cost and the maintenance cost of the equipment, increase the durability and the speed controllability of blades, prolong the service life of the equipment and facilitate automatic starting.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:

the air compression type vertical wind generating set comprises a support frame, a main shaft, blades, an upper blade column, a lower blade column, an upper cover, a speed changer, an air compressor, an air storage tank, a power generation component and an access door.

The support frame comprises an upper support frame, a lower support frame, an upper support column, a lower support column and a track; the upper support frame and the lower support frame are respectively arranged at the upper end and the lower end of the upper support column and are fixedly connected with each other, the upper support frame and the lower support frame are both provided with a track, and the track and the main shaft are coaxially arranged; the lower support column is arranged at the bottom of the upper support column, and the diameter of the lower support column is smaller than that of the upper support column. The blades are fixed between the upper blade column and the lower blade column to form blade fixing assemblies, the main shaft is vertically arranged on the supporting frame, and the blade fixing assemblies are uniformly distributed and vertically arranged along the circumferential direction of the main shaft and are supported by the supporting frame rail and then clamped and connected to the main shaft; the blade also comprises small supporting wings and a large supporting wing, and a plurality of small supporting wings and a large supporting wing are arranged on the convex surface of the blade. The transmission comprises a main shaft auxiliary gear, a main shaft circular gear and a transmission shaft connected between the main shaft auxiliary gear and the main shaft circular gear, wherein the main shaft auxiliary gear is fixedly connected with the bottom of the main shaft, and the diameter of the main shaft circular gear is larger than that of the main shaft auxiliary gear. The transmission, the air compressor and the air storage tank are arranged on the support frame, the main shaft is connected with a main shaft auxiliary gear of the transmission, a main shaft circular gear of the transmission is meshed with a driving gear outside the shell of the air compressor and can drive the plurality of air compressors to operate simultaneously, an air inlet of the air storage tank is communicated with an air outlet of the air compressor, and an air outlet of the air storage tank is communicated with the power generation component. The upper cover is arranged at the top of the support frame, and the access door is arranged on the lower support column.

The end part of the main shaft is respectively provided with a clamping type main shaft connecting part, a main shaft fixing part and a main shaft bearing part. The front part of the column end head of the upper blade column is connected with the main shaft fixing part through a clamping type main shaft connecting part and is hinged to the upper supporting frame through a main shaft bearing part, the rear part of the column end head is provided with a rotary driving assembly in sliding connection with the rail, and the head part of the column end head of the lower blade column is provided with a rotary driving assembly in sliding connection with the rail. The rotary driving assembly comprises a rotary driving body, a rotary driving connecting part, a rotary driving outer side wheel and a rotary driving inner side wheel, wherein the rotary driving connecting part, the rotary driving outer side wheel and the rotary driving inner side wheel are arranged on the rotary driving body; the rotary driving connecting part is fixed on the upper blade column, a braking device for adjusting the rotating speed of the blades is arranged in the rotary driving connecting part, and the rotary driving outer side wheel and the rotary driving inner side wheel are respectively positioned on the outer side and the inner side of the track. The air storage tank can also be arranged outside the support frame, the size and the number of the air storage tank can be adjusted as required, and each group of air storage tank corresponds to one air compressor. The cross section of the track is T-shaped. The power generation component is arranged at the lower part or the outer part of the support frame.

The power generation component comprises an air engine and a generator, the air engine is driven by compressed air sent out by the air storage tank, and the generator is driven by the air engine, so that mechanical energy is converted into electric energy.

The invention has the following remarkable advantages:

the main shaft and the blades of the invention are both vertical to the horizontal plane, the blades are fixed on the main shaft, and the power generation component is arranged at the lower part or the outer part of the support frame, so that the maintenance and the repair are convenient, and the repair cost is reduced.

The wind energy is collected by the blades to push the main shaft to rotate, the wind energy is converted into mechanical energy, the speed changer is used for changing the speed, the air compressor is driven to rotate to compress air and then store the air in the air storage tank, when the wind power is large, the wind energy collected by the blades is more, one part of the wind energy is used for generating power, the rest air is stored by compression, when the wind power is small, the stored air is used for generating power, the rotating speed of the generator is reduced, the pulsation phenomenon of power generation can be reduced, and meanwhile, the generated energy and time can be flexibly adjusted. And power can still be generated when typhoons and hurricanes occur and when no wind and breeze occur, i.e. wind forces above 25m/s and wind forces below 5 m/s.

In the invention, the vertical type blade can increase the contact surface of the blade and the wind speed, and has stable durability, easy manufacture and low manufacture cost.

In the invention, the main shaft is vertical to the horizontal plane, and a plurality of air compressors, air storage tanks and generators can be arranged on the support frame to reserve enough internal space.

In the invention, the upper support frame and the lower support frame are provided with the rails, and the blades rotate on the rails to disperse the load of the blades to the upper support frame and the lower support frame, thereby ensuring that the blades can rotate in breeze and enabling the blades to stably rotate at high speed in strong wind.

In the invention, the blades of the vertical wind generating set are different from the blades of the horizontal wind generating set, and the upper part and the lower part of the blades are fixed through the upper support frame and the lower support frame, so that the blades are firmer, the thickness of a large-area blade surface is thinner, and the blades are further lightened.

In the invention, more air storage tanks and power generation components can be installed in areas with more wind power, and the areas are connected to a remote place through air pipelines, so that more electric power can be stably generated by generating power in places beyond thousands of meters.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the functions and purposes of the present invention, shall fall within the scope covered by the contents disclosed in the present invention.

Fig. 1 is a schematic structural diagram of an air compression vertical wind turbine generator system according to an embodiment of the present invention;

fig. 2 is a sectional view of an air compression type vertical wind turbine generator system according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a part of the structure of an air compression type vertical wind turbine generator system according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a track and a rotary driving assembly in an air compression type vertical wind generating set according to an embodiment of the present invention;

FIG. 5 is a schematic view of a transmission and an air compressor of an air compression vertical type wind turbine generator set according to an embodiment of the present invention;

fig. 6 is a bottom oblique view of an air compression vertical wind turbine generator system according to an embodiment of the present invention.

In the figure: 1-blade, 1 a-small holding wing, 1 b-large holding wing, 2-upper blade column, 3-lower blade column, 4-upper cover, 5-upper support column, 6-lower support column, 7-access door, 8-rotary drive component, 8 a-rotary drive connection, 8 b-rotary drive body, 8 c-rotary drive outside wheel, 8 d-rotary drive inside wheel, 9-track, 10 a-upper support frame, 10 b-lower support frame, 11-main shaft connection, 12-main shaft fixing piece, 13-main shaft bearing portion, 14-main shaft, 15-main shaft auxiliary gear, 16-air compressor, 16 a-compressor housing, 16 b-drive gear, 17-main shaft circular gear, 18-air storage tank, 19-power generation component.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, 2 and 6, the air compression vertical type wind turbine generator set includes a support frame, a main shaft 14, a blade 1, an upper blade column 2, a lower blade column 3, an upper cover 4, a transmission, an air compressor 16, an air tank 18, a power generation part 19, and an access door 7.

The support frame comprises an upper support frame 10a, a lower support frame 10b, an upper support column 5, a lower support column 6 and a track 9; the upper support frame 10a and the lower support frame 10b are respectively arranged at the upper end and the lower end of the upper support column 5 and are fixedly connected with each other, the upper support frame 10a and the lower support frame 10b are both provided with a track 9, and the track 9 and the main shaft 14 are coaxially arranged; the lower support column 6 is arranged at the bottom of the upper support column 5 and is used for supporting the upper support frame 10a, the lower support frame 10b and the upper support column 5. The lower support column 6 has a smaller diameter dimension than the upper support column 5.

The blade 1 is fixed between the upper blade column 2 and the lower blade column 3 to form a blade fixing assembly, and the blade fixing assembly is provided with six blades in total. The main shaft 14 is vertically arranged at the center of the support frame, and the six blade fixing assemblies are uniformly distributed and vertically arranged along the circumferential direction of the main shaft 14, and are supported by the support frame rail 9 and then are clamped and connected on the main shaft 14; the blade 1 further comprises a small stabilizer 1a and a large stabilizer 1b, and three small stabilizers 1a and one large stabilizer 1b are arranged on the convex surface of the blade 1. The blades 1 are used for collecting wind energy and driving the main shaft connecting part to rotate under the driving of wind power, so that the main shaft 14 is driven to rotate to obtain mechanical energy. Because the main shaft 14 is arranged perpendicular to the horizontal plane, compared with the existing horizontal arrangement, the wind-driven horizontal wind power generator has the advantages of larger contact surface between wind and the blades 1, better durability, simple structure, easy manufacture, lower cost and convenient maintenance. The blade 1 is fixed between the upper blade column 2 and the lower blade column 3, the blade 1 is firmer, the thickness of the large-area blade 1 is thinner, and the blade 1 can be lightened. The upper cover 4 is arranged at the top of the support frame and used for safety protection, and the access door 7 is arranged on the lower support column 6 and used for access of internal workers.

Referring to fig. 2 and 5, the transmission according to the embodiment of the present invention includes a main shaft auxiliary gear 15, a main shaft circular gear 17, and a transmission shaft connected therebetween, the main shaft auxiliary gear 15 is fixedly connected to the bottom of the main shaft 14, and the diameter of the main shaft circular gear 17 is larger than that of the main shaft auxiliary gear 15. The transmission, the air compressor 16 and the air storage tank 18 are arranged in the support frame, the main shaft 14 is connected with a main shaft auxiliary gear 15 of the transmission, and a main shaft circular gear 17 of the transmission is meshed with a driving gear 16b outside an air compressor shell 16a and drives the air compressor 16 to operate. The main shaft 14 transmits mechanical energy to a transmission that adjusts the rotational speed to the operating rotational speed of the air compressor 16, thereby transmitting mechanical energy to the air compressor 16. An air input port of the air tank 18 communicates with an air output port of the air compressor 16, and an air output port of the air tank 18 communicates with the power generation unit 19.

In the embodiment of the invention, the main shaft auxiliary gear 15 can increase the rotating speed of the main shaft 14 by at least 5 times, and the main shaft circular gear 17 can further increase the rotating speed by more than 10 times, so that the rotating speed provided by the speed changer for the air compressor is more than 50 times of the rotating speed of the main shaft 1, and the rotating speed of the air compressor 16 can reach more than 300 revolutions per minute.

Referring to fig. 2, 3 and 4, the end of the spindle 14 according to the embodiment of the present invention is provided with a clamping spindle connecting portion 11, a spindle fixing member 12 and a spindle bearing portion 13. The front part of the column end of the upper blade column 2 is connected with the main shaft fixing piece 12 through a clamping type main shaft connecting part 11, and a main shaft bearing part 13 can fully respond to the load of the blade 1 and can also realize high-speed rotation. The rear part of the column end is provided with a rotary driving component 8 which is connected with the track 9 in a sliding way, and the lower blade column 3 is provided with a rotary driving component 8 which is connected with the track 9 in a sliding way at the column end.

In the present embodiment, the rotary drive assembly 8 includes a rotary drive body 8b, and a rotary drive connection 8a, a rotary drive outboard wheel 8c, and a rotary drive inboard wheel 8d provided on the rotary drive body 8 b. The rotary drive connection 8a is fixed to the blade column 2, and the rotary drive outer wheel 8c and the rotary drive inner wheel 8d are located outside and inside the rail 9, respectively. The main shaft 14 transmits mechanical energy to a transmission, which is used to adjust the rotational speed to achieve the operating rotational speed of the air compressor 16. The blade 1 rotates around the rail 9 under the limitation of the rotation driving component 8, the rail 9 arranged on the upper support frame 10a and the lower support frame 10b can disperse the load of the blade 1 to the upper blade column 2 and the lower blade column 3, the blade can be ensured to rotate even in breeze, the blade can stably rotate at high speed in strong wind, and the blade 1 can be prevented from being damaged due to too large wind force.

Referring to fig. 2, 4 and 6, in the present embodiment, the cross section of the rail 9 is "T" shaped, so as to prevent the rotation driving assembly 8 from separating from the rail, further prevent the blade 1 from separating from the rail 9, and improve the stability of the operation of the wind turbine generator system. In addition, in order to better control the rotational speed of the blade 1, the rotary drive assembly 8 further comprises a braking device for adjusting the rotational speed of the blade 1, which is provided on the rotary drive connection 8 a.

Referring to fig. 1, 2, and 3, the spindle connecting portion 11 according to the embodiment of the present invention is a clamp type connecting portion. When the blade column 2 is elongated or shortened by the influence of the external temperature, or when the length of the rotation rail 9, the rotation driving outer wheel 8c, and the rotation driving inner wheel 8d is changed, the length of the clamp-type spindle connection portion 11 can be flexibly adjusted, the load of the blade column 2 is reduced, and the influence of the centrifugal force on the blade during rotation and the deformation of the blade column 2 due to the temperature change are avoided.

Referring to fig. 2 and 6, a power generation member 19 according to an embodiment of the present invention is disposed inside and below the support frame. The power generation section 19 includes an air motor driven by the compressed air sent from the air tank 18 and a power generator driven by the air motor so that mechanical energy is converted into electric energy.

In the embodiment of the present invention, the number of the air tanks 18 is the same as that of the air compressors 16, one air compressor 16 corresponds to one air tank 18, and the air tanks 18 are fixed on the support frame. However, the present invention is not limited to this, and the air storage tank 18 may also be disposed outside the support frame, and the size and number of the air storage tank 18 may be adjusted as required, and is not limited by the space of the support frame. When a large number of air storage tanks 18 are arranged, each group of air storage tanks 18 corresponds to one air compressor 16, and in hillsides, high lands or uneven areas with high wind energy, the number of the air storage tanks 18 and/or the volume and power generation components can be increased and connected to a remote place through an air pipeline, so that power generation is performed in flat areas beyond thousands of meters, and more electric power is stably generated.

The air compression type vertical wind generating set provided by the embodiment utilizes the blades to collect wind energy to push the main shaft to rotate, so that the wind energy is converted into mechanical energy, the speed changer is used for changing the speed, the air compressor is driven to operate to compress the air and then store the air in the air storage tank, when the wind power is large, the wind energy collected by the blades is more, one part of the wind energy is used for generating electricity, the rest of the air is stored through compression, when the wind power is small, the stored air is reused for generating electricity, therefore, the rotating speed of the generator is stabilized, the pulsation phenomenon of the electricity generation can be reduced, and the generated energy and the time can be. And power can still be generated when typhoons and hurricanes occur and no wind and breeze occur, namely, the wind power is more than 25m/s and the wind power is less than 5 m/s.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The utility model provides a vertical type wind generating set of air compression formula which characterized in that: the wind power generation device comprises a support frame, a main shaft (14), blades (1), an upper blade column (2), a lower blade column (3), a transmission, an air compressor (16), an air storage tank (18) and a power generation component (19);

the support frame comprises an upper support frame (10a), a lower support frame (10b), an upper support column (5), a lower support column (6) and a track (9); the upper support frame (10a) and the lower support frame (10b) are respectively arranged at the upper end and the lower end of the upper support column (5) and are fixedly connected, the upper support frame (10a) and the lower support frame (10b) are respectively provided with a track (9), and the tracks (9) and the main shaft (14) are coaxially arranged; the lower support column (6) is arranged at the bottom of the upper support column (5), and the diameter of the lower support column (6) is smaller than that of the upper support column (5);

the blade (1) is fixed between the upper blade column (2) and the lower blade column (3) to form a blade fixing assembly, the main shaft (14) is vertically arranged on the supporting frame, and the blade fixing assemblies are uniformly distributed and vertically arranged along the circumferential direction of the main shaft (14), supported by the supporting frame rail (9) and then clamped and connected to the main shaft (14); the blade (1) also comprises small supporting wings (1a) and large supporting wings (1b), and a plurality of small supporting wings (1a) and a large supporting wing (1b) are arranged on the convex surface of the blade (1);

the transmission comprises a main shaft auxiliary gear (15), a main shaft circular gear (17) and a transmission shaft connected between the main shaft auxiliary gear and the main shaft circular gear, wherein the main shaft auxiliary gear (15) is fixedly connected with the bottom of a main shaft (14), and the diameter of the main shaft circular gear (17) is larger than that of the main shaft auxiliary gear (15);

the transmission, the air compressors (16) and the air storage tanks (18) are arranged on the support frame, the main shaft (14) is connected with a main shaft auxiliary gear (15) of the transmission, a main shaft circular gear (17) of the transmission is meshed with driving gears (16b) outside a plurality of air compressor shells (16a) and can drive the plurality of air compressors (16) to run simultaneously, air input ports of the air storage tanks (18) are communicated with air output ports of the air compressors (16), and air output ports of the air storage tanks (18) are communicated with a power generation component (19).

2. The air compression vertical type wind power generation set according to claim 1, further comprising an upper cover (4) and an access door (7), wherein the upper cover (4) is provided on the top of the support frame, and the access door (7) is provided on the lower support column (6).

3. The air compression vertical wind turbine generator system according to claim 1, wherein a clamping main shaft connecting portion (11), a main shaft fixing member (12), and a main shaft bearing portion (13) are provided at end portions of the main shaft (14), respectively; the front part of the column end head of the upper blade column (2) is connected with the main shaft fixing part (12) through a clamping type main shaft connecting part (11) and is hinged to the upper support frame (10a) through a main shaft bearing part (13), the rear part of the column end head is provided with a rotary driving component (8) in sliding connection with the rail (9), and the head part of the column end head of the lower blade column (3) is provided with the rotary driving component (8) in sliding connection with the rail (9).

4. The air-compression vertical wind power plant according to claim 3, wherein the rotary drive assembly (8) comprises a rotary drive body (8b) and a rotary drive connection (8a), a rotary drive outside wheel (8c) and a rotary drive inside wheel (8d) provided on the rotary drive body (8 b); the rotary drive connection (8a) is fixed to the blade column (2), and the rotary drive outer wheel (8c) and the rotary drive inner wheel (8d) are respectively disposed on the outer side and the inner side of the rail (9).

5. The air-compressing vertical wind power plant according to claim 1, wherein the air tanks (18) are provided outside the support frame, one air compressor (16) for each group of air tanks (18).

6. The air-compression vertical wind power plant according to claim 1, wherein the rail (9) has a T-shaped cross section.

7. The air compression vertical type wind power plant according to claim 1, wherein the power generation component (19) is provided at a lower portion or an outside of the support frame.

8. An air compression vertical wind turbine generator according to any one of claims 1 to 7, wherein the power generation means (19) comprises an air motor driven by compressed air sent from the air storage tank (18) and a generator driven by the air motor so that mechanical energy is converted into electric energy.