CN110594102A - Bladeless wind power generation equipment based on galloping principle - Google Patents

Abstract

The invention provides a bladeless wind power generation equipment based on the galloping principle, which belongs to the technical field of power generation equipment, and includes a bracket, a main vibration body and a power generation vibrator; The elastic part is connected with the bracket; two magnets parallel and opposite to each other are arranged in the inner cavity of the main vibrator; horizontal magnetic induction lines are formed between the two magnets; the generator vibrator is located between the two magnets; the generator vibrator includes conductors and The second elastic member connecting the conductor and the inner wall of the main oscillator; the two ends of the conductor are respectively used for electrical connection with the battery pack; The lower relative magnet bounces up and down, reciprocatingly cutting the horizontal magnetic induction line to realize power generation. The bladeless wind power generation equipment based on the galloping principle provided by the present invention makes it possible to use wind power to generate electricity without using blades, and can largely avoid the disadvantages of traditional wind power generation.

Description

Bladeless wind power generation equipment based on galloping principle

technical field

The invention belongs to the technical field of power generation equipment, and more specifically relates to a bladeless wind power generation device based on the principle of galloping.

Background technique

Traditional conventional energy sources such as natural gas, oil, and coal have limited reserves, and when developed and used in large quantities, they will cause serious damage to the ecological environment. The problem of energy shortage and environmental pollution is becoming more and more severe, and it is of great economic and social significance to develop clean and renewable energy, such as wind power and solar power. However, traditional wind power equipment is bulky, with a height of more than 60 meters and a single blade length of more than 35 meters. Strong winds may cause serious damage such as blade breakage and tower collapse. In addition, the rotation of the fan may affect nearby birds and the like in terms of ecological issues.

Therefore, it is urgent to develop a green and environment-friendly bladeless wind power generation equipment.

Contents of the invention

The purpose of the embodiments of the present invention is to provide a bladeless wind power generation device based on the galloping principle, aiming at solving the technical problem of lack of a green and environment-friendly bladeless wind power generation device in the market.

In order to achieve the above object, the technical solution adopted by the present invention is to provide a bladeless wind power generation device based on the principle of galloping, including:

bracket;

The main vibrating body is a hollow prism arranged horizontally, and the two ends are respectively connected to the bracket through the first elastic member; the inner cavity of the main vibrating body is provided with two parallel and opposite magnets; forming horizontal lines of magnetic induction between said magnets; and

The generating vibrator is located between the two magnets; the generating vibrator includes a conductor and a second elastic member connecting the conductor and the inner wall of the main oscillator; the two ends of the conductor are respectively used for electrical connection with the battery pack ;

When the main vibrating body undergoes galloping by the transverse wind, the conductor bounces up and down relative to the magnet under the joint action of inertial force and the second elastic member, and performs reciprocating cutting on the horizontal magnetic induction line to achieve generate electricity.

As another embodiment of the present application, the second elastic member is insulated and connected to the conductor.

As another embodiment of the present application, the conductor includes a plurality of parallel wires connected in parallel with each other, multiple sets of the second elastic member are provided, each of the wires passes through a set of the second elastic member and the main conductor. The inner wall of the vibration body is connected; each group of the second elastic members is provided with a plurality of second elastic members arranged at intervals along the axial direction of the wire.

As another embodiment of the present application, the support includes two opposite and spaced frames, the main vibrating body is located between the two frames, and the two ends of the main vibrating body pass through one of the two frames respectively. The first elastic member is connected with the corresponding frame body.

As another embodiment of the present application, the main vibrating body is a quadrangular prism, the magnet is a bar magnet, the length direction of the magnet is parallel to the length direction of the main vibrating body, and the length direction of the conductor is parallel to the length direction of the main vibrating body. The length directions of the magnets are parallel.

As another embodiment of the present application, the main oscillator is an insulator.

As another embodiment of the present application, the main vibrating body includes a steel skeleton and an ABS board covering the steel skeleton.

As another embodiment of the present application, the first elastic member includes a first spring and a second spring located directly below the first spring; one end of the first spring is connected to the main vibrating body, and the other end is connected to the The top of the bracket is connected; one end of the second spring is connected to the main vibration body, and the other end is connected to the bottom of the bracket.

As another embodiment of the present application, the elastic stiffness of the first spring is greater than the elastic stiffness of the second spring.

As another embodiment of the present application, two ends of the main vibrating body are respectively provided with connecting parts for connecting with the first elastic member.

One of the above-mentioned technical solutions has the following beneficial effects: Compared with the prior art, the bladeless wind power generation equipment based on the galloping principle provided by the embodiment of the present invention changes the power generation principle of the wind power generation equipment and provides a Green environment-friendly bladeless wind power generation equipment. The wind energy is converted into the kinetic energy of the main vibrator and the generator vibrator by using the galloping principle of the transverse wind direction, and the kinetic energy of the generator vibrator is converted into electrical energy by using the electromagnetic induction effect, realizing the conversion of wind energy into electrical energy. This solution makes the use of wind power generation without the use of blades. The whole equipment has a simple structure, convenient maintenance, and will not cause adverse effects on the ecological environment. It is easy to promote, can largely avoid the disadvantages of traditional wind power generation, and has broad development prospects. There is no relevant equipment in China.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the descriptions of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only of the present invention. For some embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is a schematic structural view of a bladeless wind power generation device based on the galloping principle provided by an embodiment of the present invention;

Fig. 2 is a schematic diagram of a vertical cross-sectional structure of a main vibrator and a generator vibrator used in an embodiment of the present invention;

Fig. 3 is a schematic diagram of a vertical cross-sectional structure of a main vibrator and a generator vibrator used in another embodiment of the present invention;

Fig. 4 is a schematic diagram of the wind direction angle when the bladeless wind power generation equipment based on the galloping principle provided by the embodiment of the present invention is used for the wind tunnel test;

Fig. 5 is the galloping force coefficient of the structure under different wind direction angles when the bladeless wind power generation equipment based on the galloping principle provided by the embodiment of the present invention is used for the wind tunnel test.

In the figure: 100, bracket; 110, frame body; 200, main vibration body; 300, first elastic member; 310, first spring; 320, second spring; 400, magnet; 500, generator vibrator; 510, conductor; 520, the second elastic member; 600, the connecting part.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Please refer to FIG. 1 to FIG. 5 together, and now describe the bladeless wind power generation equipment based on the galloping principle provided by the embodiment of the present invention. The bladeless wind power generation equipment based on the galloping principle includes a bracket 100 , a main vibrating body 200 and a power generating vibrator 500 .

The main vibrating body 200 is a hollow prism arranged horizontally, and its two ends are respectively connected to the bracket 100 through the first elastic member 300 . Two parallel and opposite magnets 400 are arranged in the cavity of the main vibrating body 200 . Horizontal lines of magnetic induction are formed between the two magnets 400 .

The generator vibrator 500 is located between the two magnets 400 . The generator oscillator 500 includes a conductor 510 and a second elastic member 520 connecting the conductor 510 and the inner wall of the main oscillator 200 . Both ends of the conductor 510 are respectively used for electrical connection with the battery pack.

When the main vibrating body 200 is galloped by the transverse wind, the conductor 510 bounces up and down relative to the magnet 400 under the joint action of the inertial force and the second elastic member 520, reciprocatingly cutting the horizontal magnetic field lines to realize power generation.

For the convenience of description, part of the following will refer to "bladeless wind power generation equipment based on galloping principle" as power generation equipment for short.

When in use, place the power generation equipment in a windy place, and electrically connect the two ends of the conductor 510 to the storage battery pack respectively. When the main vibrating body 200 is subjected to the transverse wind, the phenomenon of galloping in a cross flow will occur, and it will bounce up and down. Moving at a constant speed, the conductor 510 in the generator vibrator 500 in the main vibrating body 200 reciprocates up and down relative to the main vibrating body 200 under the action of inertial force and the second elastic member 520, and the two magnets 400 in the main vibrating body 200 The generated horizontal magnetic field lines are reciprocally cut to generate electricity. The generated electric energy is stored by the battery pack.

The present invention is proposed based on the principle of galloping in the transverse wind direction (that is, the principle of cross-flow relaxation) and the principle of electromagnetic induction effect. The principle of galloping in the transverse wind direction refers to the aerodynamic negative damping component due to flow separation and vortex shedding, resulting in a slender structure Destabilizing vibrations. The transverse wind gallop is a divergent bending self-excited vibration caused by the negative slope of the lift curve. This negative slope makes the displacement of the structure consistent with the direction of the air force during the vibration process, and the structure continuously absorbs energy from the outside, thus forming unstable vibration. In combination with this embodiment, the main vibrating body 200 will absorb energy from the outside when it is subjected to lateral wind, and it will move up and down at a non-uniform speed under the action of the lateral wind and the first elastic member 300, and the conductor 510 will move up and down under the action of the inertial force and the second elastic member 300. Under the action of the 520, the inner cavity of the main vibrating body 200 moves up and down at a non-uniform speed relative to the main vibrating body 200, and repeatedly cuts the horizontal magnetic induction lines generated by the two magnets 400 to realize the conversion of wind energy into electric energy.

In order to verify the feasibility of the scheme of this embodiment, the inventor carried out a wind tunnel test. The wind tunnel test was carried out in the low-speed section of the STU-1 wind tunnel laboratory of the Wind Engineering Research Center of Shijiazhuang Railway University Wind Tunnel Center. The maximum wind speed can reach 30.0m/s, the degree of turbulence in the test section area is not more than 0.5%, the velocity instability is less than 1%, and the deviation angle of the average airflow is less than 1°.

DenHartog believes that the vertical vibration of the model causes the change of the wind attack angle of the model relative to the incoming flow, which leads to the change of the aerodynamic force. Sometimes the change of the aerodynamic force causes the damping of the system to become negative, and the system will be unstable. state, that is, the system includes structural damping and aerodynamic damping when the vertical vibration occurs. When the sum of the two is negative, the model will vibrate vertically, and the greater the absolute value of the negative value, the easier the model is to vibrate vertically. Directional vibration, because the total damping of the system is negative, so the vibration will become a divergent vibration. DenHartog proposed the DenHartog galloping criterion, which satisfies the following formula and the model will gallop in the transverse wind direction, and the smaller the coefficient, the more obvious it is.

The galloping force coefficient of the model can be obtained through the wind tunnel test. The test wind speed is 5m/s, 10m/s and 15m/s. The lift coefficient and the drag coefficient are almost the same under the three wind speeds. It can be seen from Figure 5 The galloping force coefficient of the structure is less than 0 under the wind direction angle of -14°～14°, and the galloping force coefficient is the smallest near 0° and ±14°.

According to the above test results, it can be obtained that the main vibrating body 200 will gallop in the range of -14°～14° in the wind direction angle. Bladeless wind power generation equipment is prone to relaxation when subjected to lateral wind, thereby ensuring the feasibility of power generation.

The bladeless wind power generation equipment based on the galloping principle provided by the embodiment of the present invention changes the power generation principle of the wind power generation equipment compared with the prior art, and provides a green and environment-friendly bladeless wind power generation equipment. The wind energy is converted into the kinetic energy of the main vibrator 200 and the generator vibrator 500 by using the galloping principle of the transverse wind direction, and the kinetic energy of the generator vibrator 500 is converted into electric energy by using the electromagnetic induction effect, realizing the conversion of wind energy into electric energy. This solution makes the use of wind power generation without the use of blades. The whole equipment has a simple structure, convenient maintenance, and will not cause adverse effects on the ecological environment. It is easy to promote, can largely avoid the disadvantages of traditional wind power generation, and has broad development prospects. There is no relevant equipment in China.

In this embodiment, the conductor 510 can be a conductor bar, a wire, etc., as long as it can generate electric energy when cutting the horizontal magnetic induction line.

Specifically, the first elastic member 300 and the second elastic member 520 can use springs, rubber, elastic cords, etc., as long as the above functions can be realized. The battery pack can be arranged inside the main vibrating body 200 or outside the main vibrating body 200 .

As a specific implementation of the bladeless wind power generation equipment based on the galloping principle provided by the present invention, the second elastic member 520 is insulated and connected to the conductor 510, which prevents the current generated on the conductor 510 from being transmitted to the main generator through the second elastic member 520. On the vibration body 200, the power loss during the use of the power generation equipment is reduced.

Specifically, the insulating connection between the second elastic member 520 and the conductor 510 includes the following forms, but is not limited to the following forms: the second elastic member 520 uses an insulating elastic member, and at this time the second elastic member 520 can be directly connected to the conductor 510; The conductor 510 is coated or wrapped with an insulating layer, and the second elastic member 520 is connected to the insulating layer; the second elastic member 520 adopts a spring, and an insulating layer or an insulating sleeve is coated on the outside of the spring, and the conductor 510 is connected to the conductor 510 through the insulating layer or the insulating sleeve. connect.

Please refer to Fig. 3, as a specific implementation of the galloping principle-based bladeless wind power generation equipment provided by the present invention, the conductor 510 includes a plurality of parallel wires connected in parallel with each other, and the second elastic member 520 is provided with multiple groups, each The wires are connected to the inner wall of the main vibrating body 200 through a set of second elastic members 520 . Each set of second elastic members 520 is provided with a plurality of second elastic members 520 arranged at intervals along the axial direction of the wire.

There are multiple wires, which effectively improves the power generation of a single power generation device.

Specifically, the number of wires can be increased or decreased according to usage requirements.

Please refer to Fig. 1, as a specific embodiment of the bladeless wind power generation equipment based on the principle of galloping provided by the present invention, the bracket 100 includes two opposite and spaced apart frame bodies 110, and the main vibrating body 200 is located between the two frame bodies 110 , both ends of the main vibration body 200 are respectively connected to the corresponding frame body 110 through a first elastic member 300 .

The bracket 100 includes two brackets 110, which are convenient for the movement of parts before the equipment is assembled, and the distance between the two brackets 110 can be adjusted according to the length of the main vibration body 200, so that the same group of brackets 110 can be used with different specifications. The combined use of the main vibrating body 200 is convenient for manufacturers to separately mass-produce the main vibrating body 200 and the frame body 110 , and reduces the manufacturing cost of the power generation equipment.

Please refer to Fig. 1 to Fig. 3 together, as a specific embodiment of the bladeless wind power generation equipment based on the principle of galloping provided by the present invention, the main vibrating body 200 is a quadrangular prism, the magnet 400 is a bar magnet 400, and the magnet The longitudinal direction of the conductor 400 is parallel to the longitudinal direction of the main vibrating body 200 , and the longitudinal direction of the conductor 510 is parallel to the longitudinal direction of the magnet 400 .

The main vibrating body 200 and the magnet 400 are arranged in parallel, so that the horizontal magnetic induction lines can be evenly distributed along the length direction of the main vibrating body 200 , and the internal space of the main vibrating body 200 is fully utilized.

As a specific implementation of the bladeless wind power generation equipment based on the principle of galloping provided by the present invention, the main vibrating body 200 is an insulator, which prevents the conductor 510 from falling on the conductor 510 due to contact with the main vibrating body 200 when the conductor 510 bounces. power consumption.

As a specific implementation of the galloping principle-based bladeless wind power generation equipment provided by the present invention, the main vibrating body 200 includes a steel frame and an ABS board wrapped outside the steel frame.

The arrangement of the steel skeleton ensures the stability of the overall structure of the main vibrating body 200 and will not be deformed during long-term use, thereby ensuring smooth power generation.

ABS (Acrylonitrile butadiene styrene, acrylonitrile/butadiene/styrene copolymer board) board is an emerging material in the board industry. It organically unifies the various properties of PS boards, SAN boards, and BS boards, and implements the excellent mechanical properties of toughness, hardness, and rigid phase balance. Using the ABS board as the shell of the main vibrating body 200 further improves the stability of the overall structure of the main vibrating body 200 and ensures a long service life of the main vibrating body 200 .

Please refer to FIG. 1 , as a specific implementation of the galloping principle-based bladeless wind power generation equipment provided by the present invention, the first elastic member 300 includes a first spring 310 and a second spring 320 located directly below the first spring 310 One end of the first spring 310 is connected to the main vibration body 200, and the other end is connected to the top of the bracket 100;

The first spring 310 and the second spring 320 are respectively located above and below the main vibrating body 200, so that when the main vibrating body 200 is subjected to lateral wind, it can only move up and down under the traction of the first spring 310 and the second spring 320, but not A large lateral movement will occur under the influence of the lateral wind, thus ensuring the smooth progress of the relaxation phenomenon.

The setting of the first spring 310 and the second spring 320 also makes it possible to replace only the damaged spring when one of the springs is damaged, without replacing the entire first elastic member 300, thus effectively reducing the power generation. Equipment maintenance costs.

As a specific implementation of the galloping principle-based bladeless wind power generation equipment provided by the present invention, the elastic stiffness of the first spring 310 is greater than that of the second spring 320 .

After testing, the relaxation phenomenon is more obvious when the elastic stiffnesses of the first spring 310 and the second spring 320 are different.

Please refer to FIG. 1 , as a specific embodiment of the galloping principle-based bladeless wind power generation equipment provided by the present invention, the two ends of the main vibrating body 200 are respectively provided with connecting parts 600 for connecting with the first elastic member 300 .

The arrangement of the connecting portion 600 prevents damage to the overall structure of the main vibrating body 200 when the first elastic member 300 is connected to the main vibrating body 200 .

Specifically, the connecting part 600 can be detachably connected with the main vibrating body 200 so as to facilitate replacement of the first elastic member 300 after damage occurs. The connection manner between the connecting part 600 and the main vibrating body 200 may be threaded connection, clamping connection and the like.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (10)

1. The bladeless wind power generation equipment based on the principle of galloping, characterized in that it comprises: bracket; The main vibrating body is a hollow prism arranged horizontally, and the two ends are respectively connected to the bracket through the first elastic member; the inner cavity of the main vibrating body is provided with two parallel and opposite magnets; forming horizontal lines of magnetic induction between said magnets; and The generating vibrator is located between the two magnets; the generating vibrator includes a conductor and a second elastic member connecting the conductor and the inner wall of the main oscillator; the two ends of the conductor are respectively used for electrical connection with the battery pack ; When the main vibrating body undergoes galloping by the transverse wind, the conductor bounces up and down relative to the magnet under the joint action of inertial force and the second elastic member, and performs reciprocating cutting on the horizontal magnetic induction line to achieve generate electricity. 2. The bladeless wind power generation device based on the galloping principle according to claim 1, characterized in that: the second elastic member is insulated and connected to the conductor. 3. The bladeless wind power generation equipment based on the galloping principle according to claim 1, characterized in that: said conductor comprises a plurality of parallel wires connected in parallel with each other, said second elastic member is provided with multiple groups, each The wire is connected to the inner wall of the main vibrating body through a group of the second elastic members; each group of the second elastic members is provided with a plurality of second elastic members arranged at intervals along the axial direction of the wire. 4. The bladeless wind power generation equipment based on the galloping principle according to claim 1, characterized in that: the support includes two opposite and spaced frames, and the main vibrating body is located between the two frames In between, the two ends of the main vibrating body are respectively connected to the corresponding frame body through one of the first elastic members. 5. The bladeless wind power generation equipment based on galloping principle as claimed in claim 1, characterized in that: the main vibrating body is a quadrangular prism, the magnet is a bar magnet, and the length direction of the magnet is in line with the The length direction of the main vibration body is parallel, and the length direction of the conductor is parallel to the length direction of the magnet. 6. The bladeless wind power generation equipment based on the galloping principle according to claim 1, characterized in that: the main vibrating body is an insulator. 7 . The bladeless wind power generation equipment based on the galloping principle according to claim 6 , wherein the main vibrating body comprises a steel frame and an ABS board covering the steel frame. 8 . 8. The bladeless wind power generator based on the galloping principle according to claim 1, characterized in that: the first elastic member comprises a first spring and a second spring located directly below the first spring; One end of the first spring is connected to the main vibration body, and the other end is connected to the top of the support; one end of the second spring is connected to the main vibration body, and the other end is connected to the bottom of the support. 9. The bladeless wind power generation device based on the galloping principle according to claim 8, characterized in that: the elastic stiffness of the first spring is greater than the elastic stiffness of the second spring. 10. The bladeless wind power generation equipment based on the galloping principle according to any one of claims 1-9, characterized in that: the two ends of the main vibrating body are respectively provided with springs for connecting with the first elastic member. connecting part.