CN112682253A

CN112682253A - Sail type wind driven generator

Info

Publication number: CN112682253A
Application number: CN202110107219.1A
Authority: CN
Inventors: 唐红兵
Original assignee: Nanjing Meixue Power Technology Co ltd
Current assignee: Nanjing Meixue Power Technology Co ltd
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-04-20

Abstract

The invention is as follows: the sail type wind driven generator comprises five components, namely a rotary column, sail blades, a seat frame, an accelerating box and a generator, wherein the upper end of the rotary column is provided with a plurality of groups of blade mounting shafts; the output shaft of the acceleration box is connected with the generator.

Description

Sail type wind driven generator

Technical Field

The invention relates to a novel wind driven generator.

Background

Along with the development of human society, the demand for electric energy is more and more, the electric energy is generated by utilizing coal, petroleum and nuclear energy, and the wind power generation is limited by factors such as limited resource reserves, environmental protection, safety and the like, so that the wind power generation becomes a main mode for realizing clean energy by human beings, but the utilization rate of wind energy by the existing wind power generator is too low, the power generation efficiency is low, the production, installation, transportation, maintenance and other costs are high, and the development of wind power is restricted; the existing wind driven generator is a vortex type wind driven generator, taking the existing 12MW wind driven generator as an example, each blade is as long as 100 meters, the whole generator occupies 31400 square meters, the occupied space is nearly 628 ten thousand cubic meters and is as high as 200 meters, and a generator and an acceleration box weighing hundreds of tons are arranged at the top end of a wind tower with the height of 100 meters, so that the production, transportation, installation and maintenance costs are very high, the power is the highest but only 12MW, the wind power cannot normally work in a small time, and the economic benefit is not ideal; therefore, how to improve the utilization rate of wind energy and reduce the cost in all aspects makes wind power really become the first choice of human clean energy, permanently solves the energy problem faced by human, provides continuous, stable and low-price clean electric energy for human, meets the requirements of human development on energy and environment, and becomes the problem that human needs to be solved urgently.

Disclosure of Invention

The invention aims to provide an advanced wind driven generator which overcomes the limitation of the existing wind driven generator and provides continuous stable and low-cost electric energy for human beings.

The technical scheme for solving the technical problem is as follows: the sail type wind driven generator comprises five components, namely a rotating column, sail blades, a seat frame, an accelerator box and a generator, wherein the upper end of the rotating column is provided with a plurality of groups of blade mounting shafts, the blade mounting shafts are mounted together through bearings, end covers and a mounting shaft sleeve, the mounting shaft sleeve can rotate freely, the sail blades are mounted together with the mounting shaft sleeve through bolts, the sail blades can rotate freely around the blade mounting shafts, and the sail blades are uniformly mounted around the rotating column; the centre of gravity of the sail blade is in the vicinity below the axis of rotation of the sail blade; the distance of the sail blade rotational axis from the sail blade lower edge is greater than the distance of the sail blade rotational axis from the sail blade upper edge; a limiting block is arranged on the rotating column right below each sail blade, and the limiting block can limit the rotating direction of the sail blades; the lower end of the rotary column is provided with a supporting disc, the supporting disc is placed on a plane bearing, the plane bearing is placed on the seat frame, the rotary column is installed on the seat frame through the plane bearing, the rotary bearing, a shaft sleeve and a shaft stopper, and the rotary column can rotate freely; the bottom end of the rotating column is connected with an input shaft of the acceleration box through an input shaft coupler; an output shaft of the acceleration box is connected with the generator through an output shaft coupler; the working principle of the wind driven generator is as follows: when wind blows to the sail blades, the sail blades on one side of the rotating column cannot rotate due to the limitation of the corresponding limiting blocks, the wind-receiving area of the sail blades on the side is the maximum value of the projected area of the sail blade area perpendicular to the wind direction plane, the sail blades on the other side of the rotating column can rotate freely due to the fact that the sail blades are not limited by the corresponding limiting blocks, the sail blades on the other side rotate under the action of wind, and the wind-receiving area of the sail blades on the other side is close to the minimum value of the projected area of the sail blade area perpendicular to the wind direction plane; the larger the wind area of the sail blade is, the larger the wind force is, and the larger the generated moment is; the rotating column rotates due to unequal moments on two sides, the rotating column drives the input shaft of the acceleration box to rotate, and the output shaft of the acceleration box rotates to drive the generator to run and generate power.

The groups of sailing leaves arranged on the rotary column can be 3 groups, 4 groups, 5 groups and the like, are manufactured as required and are uniformly arranged around the rotary column, and each group of sailing leaves can contain a plurality of sailing leaves according to the requirements of convenient production, transportation and installation.

The generator can be a horizontal shaft generator or a vertical shaft generator according to the requirement, and the accelerator box can be a matched type according to the requirement; the number of the generators installed on each wind driven generator can be 1 or more than one generator according to needs; when a plurality of generators are installed, the number of the generators needing to work can be automatically controlled according to the size of wind power.

In order to prevent the sailleaves from being damaged due to impact, the limiting block is provided with a buffer to absorb the impact force.

The electricity generated by the generator can be safely and stably connected to a power grid after passing through the cable, the ballast, the storage battery and the inverter.

To sum up the above

Compared with the existing wind driven generator, the wind-receiving area of the blade of the wind driven generator can be increased by dozens of times, and the heaviest components such as the generator, the accelerator box and the like are placed on the ground, so that the weight and strength requirements of the rotating column or the wind tower are greatly reduced, the installation difficulty, the investment cost and the maintenance cost are also reduced, and the construction period is shortened; the invention can design and manufacture different generating powers according to the requirements; the wind power generator can stably generate power under the 2-level wind condition, and basically can generate power 24 hours per day; the wind driven generator has the characteristics of easy arrangement, environmental protection, low manufacturing cost, high generating efficiency, good economic benefit and the like, is convenient for large-scale popularization and application, and makes great contribution to solving the energy problem of human beings.

Drawings

Fig. 1 is a front view of a sail type wind power generator in an embodiment.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a partially enlarged view of a portion a in fig. 1.

Fig. 4 is a partially enlarged view of fig. 1 at B.

Fig. 5 is a partially enlarged view of C in fig. 2.

Detailed Description

Taking the attached drawings 1-5 as examples:

the invention comprises five components of a rotary column 1, sail blades 2, a seat frame 15, an accelerator box 16 and a generator 13, wherein the upper end of the rotary column 1 is provided with a plurality of groups of blade mounting shafts 5, the blade mounting shafts 5 are mounted together through a bearing 20, an end cover 19 and a mounting shaft sleeve 3, the mounting shaft sleeve 3 can rotate freely, the sail blades 2 are mounted together with the mounting shaft sleeve 3 through bolts 4, the sail blades 2 can rotate freely around the blade mounting shafts 5, and four groups of sail blades 2 are uniformly mounted around the rotary column; the centre of gravity of the sail blade 2 is in the vicinity below the axis of rotation of the sail blade 2; the distance of the axis of rotation of the sail blade 2 from the lower edge of the sail blade 2 is greater than the distance of the axis of rotation of the sail blade 2 from the upper edge of the sail blade 2; a limiting block 6 is arranged on the rotating column 1 right below each sail blade 2, and the limiting block 6 can limit the rotating direction of the sail blade 2; the lower end of the rotary column 1 is provided with a supporting plate 8, the supporting plate 8 is placed on a plane bearing 9, the plane bearing 9 is placed on the seat frame 15, the rotary column 1 is installed on the seat frame 15 through the plane bearing 9, a rotary bearing 10, a shaft sleeve 11 and a shaft stop 17, and the rotary column 1 can freely rotate; the bottom end of the rotating column 1 is connected with an input shaft of the acceleration box 16 through an input shaft coupler 12; an output shaft of the acceleration box 16 is connected with the generator 13 through an output shaft coupling 14; the working principle of the wind driven generator is as follows: when wind blows towards the sail blades 2, the sail blades 2 on one side of the rotating column 1 cannot rotate due to the limitation of the corresponding limiting blocks 6, the wind-receiving area of the sail blades 2 on the side is at the maximum of the projected area of the sail blades 2 on the plane vertical to the wind direction, the sail blades 2 on the other side of the rotating column 1 can rotate freely due to the non-limitation of the corresponding limiting blocks 6, the sail blades 2 on the other side rotate under the action of wind force, and the wind-receiving area of the sail blades 2 on the other side is near the minimum of the projected area of the sail blades 2 on the plane vertical to the wind direction; the larger the wind area of the sail blade 2 is, the larger the wind force is, and the larger the generated moment is; the rotating column 1 rotates due to unequal moments on two sides of the rotating column 1, the rotating column 1 rotates to drive the input shaft of the acceleration box 16 to rotate, and the output shaft of the acceleration box 16 rotates to drive the generator 13 to run and generate electricity.

Four groups of sail blades 2 arranged on the rotating column 1 are uniformly arranged around the rotating column 1, and each group of sail blades 2 comprises 2 sail blades 2.

The generator 13 is a horizontal shaft generator, and the acceleration box 16 can correspondingly select a matching type according to requirements; the number of the generators 13 installed on each wind driven generator is 2, and the number of the generators 13 required to work can be automatically controlled according to the size of wind power.

In order to prevent the sailleaves 2 and the limiting blocks 6 from being damaged due to impact, the limiting blocks are provided with buffers 7 for absorbing impact force.

The electricity generated by the generator 13 can be safely and stably connected to a power grid after passing through a cable, a ballast, a storage battery and an inverter.

To sum up the above

The wind driven generator has the power generation power of 24MW and the height of 50 meters, which is not 1/4 of the existing 12MW wind driven generator, each sail blade is 50 meters long, which is not 1/2 of the existing 12MW wind driven generator, the occupied area is not 1/4 of the existing 12MW wind driven generator, and the occupied space is not 1/16 of the existing 12MW wind driven generator; the investment amount is only 1/3 of a 12MW wind driven generator, the power generation power is 2 times of that of the 12MW wind driven generator, the construction period is greatly shortened, the maintenance is more convenient, the invention can stably generate power under the 2-level wind condition, and the power can be generated for 24 hours every day basically; the wind driven generator has the characteristics of easy arrangement, environmental protection, low manufacturing cost, high generating efficiency, good economic benefit and the like, is convenient for large-scale popularization and application, and makes great contribution to solving the energy problem of human beings.

Claims

1. A sail type wind driven generator is characterized in that: the wind power generation device comprises five components, namely a rotary column, sailing blades, a seat frame, an accelerator box and a generator, wherein the upper end of the rotary column is provided with a plurality of groups of blade mounting shafts, the blade mounting shafts are mounted together through bearings, end covers and mounting shaft sleeves, the mounting shaft sleeves can freely rotate, the sailing blades are mounted together with the mounting shaft sleeves through bolts, the sailing blades can freely rotate around the blade mounting shafts, and the sailing blades are uniformly mounted around the rotary column; the centre of gravity of the sail blade is in the vicinity below the axis of rotation of the sail blade; the distance of the sail blade rotational axis from the sail blade lower edge is greater than the distance of the sail blade rotational axis from the sail blade upper edge; a limiting block is arranged on the rotating column right below each sail blade, and the limiting block can limit the rotating direction of the sail blades; the lower end of the rotary column is provided with a supporting disc, the supporting disc is placed on a plane bearing, the plane bearing is placed on the seat frame, the rotary column is installed on the seat frame through the plane bearing, the rotary bearing, a shaft sleeve and a shaft stopper, and the rotary column can rotate freely; the bottom end of the rotating column is connected with an input shaft of the acceleration box through an input shaft coupler; an output shaft of the acceleration box is connected with the generator through an output shaft coupler; the working principle of the wind driven generator is as follows: when wind blows to the sailleaves, the sailleaves on one side of the rotating column cannot rotate due to the limitation of the corresponding limiting blocks, the wind-receiving area of the sailleaves on the side is the maximum value of the projection area of the sailleaf area perpendicular to the wind direction plane, the sailleaves on the other side of the rotating column can rotate freely due to the fact that the sailleaves are not limited by the corresponding limiting blocks, the sailleaves on the other side rotate under the action of the wind force, the wind-receiving area of the sailleaves on the other side is close to the minimum value of the projection area of the sailleaf area perpendicular to the wind direction plane, the larger the wind-receiving area of the sailleaves is, the larger the wind force is, and the larger the moment is generated; the rotating column rotates due to unequal moments on two sides, the rotating column drives the input shaft of the acceleration box to rotate, and the output shaft of the acceleration box rotates to drive the generator to run and generate power.

2. The sail type wind power generator according to claim 1, wherein: the groups of sailing leaves arranged on the rotary column can be 3 groups, 4 groups, 5 groups and the like, are manufactured as required and are uniformly arranged around the rotary column, and each group of sailing leaves can contain a plurality of sailing leaves according to the requirements of convenient production, transportation and installation.

3. The sail type wind power generator according to claim 1, wherein: the generator can be a horizontal shaft generator or a vertical shaft generator according to the requirement, and the accelerator box can be a matched type according to the requirement; the number of the generators installed on each wind driven generator can be 1 or more than one generator according to needs; when a plurality of generators are installed, the number of the generators needing to work can be automatically controlled according to the size of wind power.

4. The sail type wind power generator according to claim 1, wherein: in order to prevent the sailleaves from being damaged due to impact, the limiting block is provided with a buffer to absorb the impact force.