Asymmetric bladeless wind turbine group layout method for highway isolation belt

Abstract

The present invention provides a method for arranging asymmetric bladeless wind energy generator groups for highway isolation belts, the purpose of which is to achieve wind-guiding and flow-stabilizing for bladeless wind energy generators, improve power generation stability, select the isolation belt area on the highway as the deployment area; place a plurality of bladeless wind energy generators in the deployment area with two bladeless wind energy generators as a group; place a wind-guiding and flow-stabilizing device outside each group of bladeless wind energy generators according to the direction of vehicle travel, so that the wind-guiding and flow-stabilizing device guides the airflow brought by the vehicle travel to the bladeless wind energy generator to form a Karman vortex street effect to achieve wind energy generation. The present invention adopts bladeless wind energy generators with low cost and easy installation to be placed in the isolation belt of the highway, and guides the airflow through the wind-guiding and flow-stabilizing device to form a Karman vortex street effect at the bladeless wind energy generator to generate electricity, which not only develops resources that are difficult to use on the highway, but also makes the wind energy source more stable.

Description

Technical Field

[0001] The invention belongs to the technical field of wind energy prime mover equipment, and in particular relates to a method for arranging asymmetric bladeless wind energy generator groups for highway isolation zones. Background Art

[0002] The installed capacity of wind energy in the optimistic scenario of my country's highway system is about 5.7×1010kW, and the average annual power generation is about 3.6×1012kW·h; the installed capacity of wind energy in the general scenario is about 2.25×1010kW, and the average annual power generation is about 1.6×1012kW·h. The potential for wind energy development is huge. If traditional wind turbines are used, they usually require large blades that can generate electricity when they rotate. These blades are usually very large and bulky, and require a lot of space to install. In addition, they also have some safety hazards, such as blade shedding, damage, and difficulty in installation.

[0003] Bladeless wind turbines are wind turbines based on the principle of vibration energy conversion. Unlike traditional bladed wind turbines, bladeless wind turbines do not need blades to capture wind energy and convert it into mechanical energy. Instead, they convert wind energy directly into electrical energy through a series of vibration systems. However, due to the unstable wind energy source in the application scenario, weak wind capture ability, unstable power generation, and high technical requirements, bladeless wind turbines are mostly used in China. Therefore, a technical solution that can provide stable power generation is urgently needed. Summary of the invention

[0004] In order to make bladeless wind turbines more suitable for the application scenarios of the present invention, a method for arranging asymmetric bladeless wind turbine groups for highway isolation belts is provided, the purpose of which is to achieve wind guidance and flow stabilization for bladeless wind turbines and improve power generation stability. The technical problem to be solved by the present invention is achieved through the following technical solutions:

[0005] The present invention provides a method for arranging an asymmetric bladeless wind power generator group for a highway isolation zone, comprising:

[0006] Select the isolation zone on the highway as the deployment area;

[0007] Placing a plurality of groups of bladeless wind energy generators in the deployment area with two bladeless wind energy generators as one group;

[0008] A wind guiding and stabilizing device is placed outside each group of bladeless wind energy generators according to the direction of vehicle travel, so that the wind guiding and stabilizing device guides the airflow brought by the vehicle travel to the bladeless wind energy generator to form a Karman vortex street effect; the wind guiding and stabilizing device is placed perpendicular to the ground, and the bladeless wind energy generator is located inside the wind guiding and stabilizing device;

[0009] Wind energy generation is achieved using bladeless wind turbines.

[0010] Beneficial effects:

[0011] (1) The present invention optimizes the traditional wind power generation scheme and adopts a bladeless wind power generator based on Karman vortex street, which has lower installation cost, convenient maintenance, small land occupation and little impact on surrounding organisms, and is placed in the highway isolation zone. The airflow is introduced by the wind guide and flow stabilization device to form a Karman vortex street at the bladeless wind power generator to generate electricity. This not only develops resources that are difficult to use on the highway, but also has a more stable wind energy source than the solution of simply using bladeless wind power generators on a large scale.

[0012] (2) The wind guiding and flow stabilizing device used in the present invention is composed of two semi-cylindrical shells, on which two rows of air inlets are opened. The surface where the air inlets are located is 90 degrees to the road, which is convenient for forming wind on both sides of the bladeless wind turbine. There are several rows of air outlets, and the semi-circular wind guiding and flow stabilizing device is used to facilitate the flowing wind energy to form aerodynamic force, that is, it is more convenient to form a Karman vortex street.

[0013] (3) The present invention places two bladeless wind turbines with the same power generation height in a single group in the middle of the highway. That is, although the swing masts of the two bladeless wind turbines are at the same height, they are separated by two semi-cylindrical wind-guiding and flow-stabilizing devices. The wind energy transmission does not affect each other, which can reduce the impact of the two-way airflow generated by the two-way travel of motor vehicles on the formation of the Karman vortex street in the same power generation device, thereby improving the utilization rate of wind energy in the generator, promoting the utilization of untapped energy, and optimizing the energy structure.

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the process of the method for deploying asymmetric bladeless wind energy generator groups for highway isolation belts of the present invention;

[0016] Figure 2 A bird's-eye view of the scenario of placing a group of bladeless generators on the highway median strip;

[0017] Figure 3 This is a diagram of the wind guiding and flow stabilizing device for the generator;

[0018] Figure 4This is a top view of the wind guiding and flow stabilizing device for the generator;

[0019] Figure 5 This is a sample diagram of a bladeless wind turbine;

[0020] Figure 6 This is a simulated wind energy diagram with a bladeless wind turbine as the wind receiving point after the addition of bidirectional airflow;

[0021] Figure 7 This is a simulated wind energy diagram with a bladeless wind turbine as the wind receiving point after the addition of bidirectional airflow. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below with reference to specific embodiments, but the embodiments of the present invention are not limited thereto.

[0023] First, the concept of the present invention is introduced.

[0024] Traditional bladeless wind turbines have unstable wind energy sources, weak wind capture capabilities, and unstable power generation in their application scenarios. Therefore, it is urgently needed to convert their application scenarios into relatively stable wind energy scenarios, that is, the application scenarios can be in the isolation belt of highways. Therefore, the present invention proposes a method for deploying a group of wind turbines that can be used without blades. At the same time, a wind guide and flow stabilization device is designed, and the reasonable deployment method of the wind guide and flow stabilization device and the bladeless wind turbine group can also make full use of the wind energy of the highway to achieve relatively stable and continuous power generation.

[0025] The technical details of the present invention are described in detail below.

[0026] Combination Figures 1 to 5 The present invention provides a method for arranging an asymmetric bladeless wind power generator group for a highway isolation zone, comprising:

[0027] S1, select the isolation zone on the highway as the deployment area;

[0028] S2, placing a plurality of groups of bladeless wind energy generators in the deployment area with two bladeless wind energy generators as a group, and placing a plurality of groups of bladeless wind energy generators in the isolation zone of the highway in this way;

[0029] S3, placing a wind guide and flow stabilizing device outside each group of bladeless wind energy generators according to the direction of vehicle travel, so that the wind guide and flow stabilizing device guides the airflow brought by the vehicle travel to the bladeless wind energy generator to form a Karman vortex street effect; the wind guide and flow stabilizing device is placed perpendicular to the ground, and the bladeless wind energy generator is located inside the wind guide and flow stabilizing device;

[0030] refer to Figure 3The wind guiding and stabilizing flow device of the present invention is composed of two hollow semi-cylindrical shells, the shell is 2.2 meters high, and the height of each group of bladeless wind turbines is 2 meters. The bladeless wind turbine is placed in the hollow area of ​​each semi-circular main body shell. The semi-circular plane of the semi-circular main body shell is provided with two rows of air inlets, and there is a spacing between the two rows of air inlets; multiple rows of air inlets are arranged at equal intervals from top to bottom on the semi-circular arc surface. Multiple rows of air inlets are arranged at equal intervals on the semi-circular arc surface. The two rows of air inlets are vertically parallel, and the air inlets have the same length; the multiple rows of air inlets are arranged at equal intervals from top to bottom.

[0031] from Figure 3 On the whole, the wind-guiding and flow-stabilizing device for placing two cylindrical bladeless wind turbines is composed of two semi-cylindrical shells, which can prevent the two bladeless turbines in the same group from influencing each other and also facilitate stabilizing the power generation efficiency.

[0032] It is worth noting that the reason for the generation of the Karman vortex street is that the object obstructs. When the airflow flows through the obstacle, the fluid velocity and pressure change, and the inertia of the fluid generates a vortex structure. Due to the interaction of the vortices, the vortex structure is continuously transmitted downstream until it disappears. The two rows of air inlets of the present invention divide the airflow brought by the vehicle into two airflows with the same direction but different intensities, thereby disturbing the bladeless wind turbine to form a Karman vortex street effect in the hollow area, thereby realizing wind power generation.

[0033] refer to Figure 2-Figure 4 The airflow generated when the highway car passes the wind power generator at high speed is strong and stable in direction, which is conducive to the formation of Karman vortex street phenomenon. The central isolation belt has no higher trees to block the airflow than the isolation belts on both sides, and a group of wind guide and flow stabilization devices such as Figure 3 , the air inlet and outlet are as follows Figure 4 As shown, the air inlet faces the direction of the car's travel, and the airflow generated by the car's travel is divided into two airflows with the same direction but different intensities by the air inlet, thereby disturbing the rotation of the mast of the bladeless generator to form a Karman vortex street. The wind guide and flow stabilization device can also prevent the reverse wind from affecting the formation of the Karman vortex street. There are several rows of air outlets, which are conducive to the formation of aerodynamic force by the flowing wind energy, that is, it is easier to form a Karman vortex street, and it is also easier to stabilize the power generation efficiency, and the airflow formed is also more stable.

[0034] S4, realizing wind energy generation by using bladeless wind turbine.

[0035] The bladeless wind energy generator in the present invention, under the influence of the wind generated by the motor vehicle on one side, the wind will act on the bladeless wind energy generator on one side, so that a Karman vortex street is generated on the rear side of the bladeless wind energy generator and power is generated, and the bladeless wind energy generator placed side by side with it can also play a certain weakening and blocking role on the opposite wind generated by the vehicle traveling in the other direction. Therefore, this device can adapt to the situation where the winds on both sides of the power generation devices placed side by side are in different directions, thereby reducing the wind energy impact of the wind on one side on the reverse wind on the other side.

[0036] refer to Figure 5 As shown, the bladeless wind energy generator includes a generator body, a generator anchor and a generator base, wherein the generator body includes a carbon rod fixing member, a carbon rod, a base and a mast anchor, a power generation rotor, a power generation stator and a wind swing mast;

[0037] The generator anchor is located at the bottom to support the entire generator body; the generator base is set on the generator anchor, and the carbon rod extends from the generator base from bottom to top to the generator rotor set in the middle of the generator body; one end of the carbon rod fixing piece is set on the base and mast anchor, and the other end fixes the carbon rod from top to bottom; the generator stator is set on the generator rotor, and the wind swing mast is located above the generator stator. The wind swing masts of each set of bladeless wind energy generators have the same height.

[0038] When the wind guiding and stabilizing device of the present invention guides the airflow into one side of the bladeless wind energy generator, the airflow flowing through the bladeless wind energy generator is disturbed and a vortex is generated at the bladeless wind energy generator; the airflow falls off behind the bladeless wind energy generator; the fallen vortex forms a Karman vortex street effect behind the wind-swinging mast, causing the wind-swinging mast to swing periodically, thereby driving the power generation rotor installed on the rotating shaft to rotate in the power generation stator, cutting the magnetic lines of force to generate current, and completing the power generation process.

[0039] The bladeless wind turbine generator (hereinafter referred to as wind turbine generator) based on Karman vortex street effect is placed in a group of two wind turbine generators in the middle of the road. The generator is placed in a wind guide and flow stabilization device. The placement position is as follows: Figure 1 , in order to reduce the adverse effects of the two-way airflow generated by the two-way driving of motor vehicles on the two wind power generation devices to form Karman vortex streets, thereby affecting the utilization of wind energy by the generators. Figure 4The device consists of a generator anchor, a fixed base, a carbon rod, a carbon rod fixing, a wind-swinging mast, a magnet (generator rotor), an anchor connecting the base and the mast, and a generator stator. The generator is deployed in the central isolation belt of the highway. In order to minimize the impact on the original greening effect of the isolation belt, according to the highway greening design specifications, the design height of the generator is about 2 meters, which is basically the same as the original height of the anti-glare seedlings. The base of the generator is about 0.6 meters high, which can not only lay the original 0.4-0.6-meter-high anti-glare vegetation, but also will not affect the effect of the incoming airflow on the vibration of the generator mast. The size will be adjusted according to the test results during the experimental test phase.

[0040] The reasonable spacing of wind turbines can not only utilize the Karman vortex street effect to swing and generate wind energy, but their wind guide and flow stabilization devices can also serve as obstacles to provide conditions for the formation of the Karman vortex street effect on both sides of the wind turbines.

[0041] Bladeless wind turbines can use wind energy from different directions to produce radial swings through the Karman vortex street effect. Similar to traditional generators, they use the interaction between coils and magnetic fields to generate current by cutting magnetic flux lines. The magnets of wind turbines can not only reset and maintain vibration continuity, but also avoid contact and collision of parts, thus extending their service life.

[0042] When a vehicle passes by, airflow in the same direction is generated around the vehicle. The airflow passes through the wind power generation device in the central isolation belt to form a Karman vortex street phenomenon. The Karman vortex street vortex will cause the bladeless wind turbine to swing under the interaction, generate electricity through electromagnetic induction, and store the electrical energy for nighttime power supply and daily operation needs of some sensors.

[0043] The bladeless wind energy generator used in the highway of the present invention should be miniaturized, reduce land use, and reduce height. The wind energy generated during the driving of the vehicle enters the wind guiding and stabilizing device to affect the generator.

[0044] refer to Figure 6 and Figure 7 , Figure 6 and Figure 7 These are the wind energy diagrams simulated by bladeless wind turbines after adding bidirectional airflow. Figure 6 and Figure 7 It can be seen that the present invention utilizes the wind guiding and flow stabilizing device to introduce airflow, and forms a Karman vortex street phenomenon at each group of bladeless wind energy generators, so that the bladeless wind energy generators can utilize the wind energy caused by this phenomenon to generate electricity.

[0045] The bladeless wind energy generator of the present invention is connected to an energy storage device, and the energy storage device is used to store the electric energy generated by the bladeless wind energy generator and to supply power to a wind energy speed measuring device and an air quality device.

[0046] The energy storage is used to provide power for the street lamps on both sides, and it is also equipped with some modules, such as wind speed detection, air quality detection, etc. It can collect information such as airflow and air on the highway.

[0047] When vehicles are driving on highways, wind energy will be generated in the surrounding area. Although the energy conversion efficiency of bladeless wind generators is lower than that of traditional wind turbines, it is quieter to use and safer to use bladeless ones. The abundant wind energy brought by vehicles can also make up for the low efficiency of bladeless wind generators. The present invention can also collect this energy to power street lights on both sides of the road and other surrounding equipment and villages. Today's solar power supply methods have many constraints, such as high cost, short battery life, and poor stability, and are not suitable for use in highways requiring high brightness. The use of a suitable Karman vortex street bladeless wind generator can be used on highways, which can significantly increase the proportion of green energy and reduce environmental pollution and waste of resources.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0049] Although the present application is described herein in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art may understand and implement other variations of the disclosed embodiments by reviewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude a plurality of components or steps.

[0050] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A method for deploying asymmetric bladeless wind turbine groups for highway isolation belts, characterized in that: include: Select the isolation zone on the highway as the deployment area; Placing a plurality of groups of bladeless wind energy generators in the deployment area with two bladeless wind energy generators as one group; A wind guiding and stabilizing device is placed outside each group of bladeless wind energy generators according to the direction of vehicle travel, so that the wind guiding and stabilizing device guides the airflow brought by the vehicle travel to the bladeless wind energy generator to form a Karman vortex street effect; the wind guiding and stabilizing device is placed perpendicular to the ground, and the bladeless wind energy generator is located inside the wind guiding and stabilizing device; Wind energy generation using bladeless wind turbines; The wind guiding and flow stabilizing device is composed of two hollow semi-cylindrical shells, and the bladeless wind energy generator is placed in the hollow area of ​​each semi-circular main body shell.

2. The method for arranging asymmetric bladeless wind power generator groups for highway isolation belts according to claim 1, characterized in that: The semicircular plane of the semicircular main body-shaped shell is provided with two rows of air inlets, and there is a distance between the two rows of air inlets; A plurality of air outlets are arranged at equal intervals on the semicircular surface.

3. The method for arranging asymmetric bladeless wind power generator groups for highway isolation belts according to claim 2, characterized in that: The two rows of air inlets are arranged side by side in the vertical direction and have the same length; the multiple rows of air outlets are arranged at equal intervals from top to bottom.

4. The method for arranging asymmetric bladeless wind power generator groups for highway isolation belts according to claim 2 or 3, characterized in that: The two rows of air inlets divide the airflow brought by the vehicle's movement into two airflows with the same direction but different intensities, thereby disturbing the bladeless wind turbine to form a Karman vortex street effect in the hollow area, thereby realizing wind power generation.

5. The method for arranging asymmetric bladeless wind power generator groups for highway isolation belts according to claim 1, characterized in that: Each bladeless wind energy generator is located at the center of the semi-cylindrical housing.

6. The method for deploying asymmetric bladeless wind power generator groups for highway isolation belts according to claim 1, characterized in that: The bladeless wind energy generator comprises a generator body, a generator anchor and a generator base, wherein the generator body comprises a carbon rod fixing part, a carbon rod, a base and a mast anchor, a generator rotor, a generator stator and a wind-swinging mast; Among them, the generator anchor is located at the bottom to support the entire generator body; the generator base is arranged on the generator anchor, and the carbon rod extends from the generator base from bottom to top to the generator rotor arranged in the middle position of the generator body; one end of the carbon rod fixing part is arranged on the base and the mast anchor, and the other end fixes the carbon rod from top to bottom; the generator stator is arranged on the generator rotor, and the wind-swinging mast is located above the generator stator.

7. The method for arranging asymmetric bladeless wind power generator groups for highway isolation belts according to claim 6, characterized in that: When the wind guiding and stabilizing device guides the airflow into one side of the bladeless wind energy generator, the airflow flowing through the bladeless wind energy generator is disturbed and a vortex is generated at the bladeless wind energy generator; the airflow falls off behind the bladeless wind energy generator; the fallen vortex forms a Karman vortex street effect behind the wind-swinging mast, causing the wind-swinging mast to swing periodically, thereby driving the power generation rotor installed on the rotating shaft to rotate in the power generation stator, cutting the magnetic flux lines to generate current, and completing the power generation process.

8. The method for arranging asymmetric bladeless wind power generator groups for highway isolation belts according to claim 6, characterized in that: The bladeless wind energy generator is connected to an energy storage device, and the energy storage device is used to store the electric energy generated by the bladeless wind energy generator and to supply power to a wind energy speed measuring device and an air quality device.

9. The method for arranging asymmetric bladeless wind power generator groups for highway isolation belts according to claim 6, characterized in that: The height of each bladeless wind energy generator is 2 meters, and the height of the wind guiding and flow stabilizing device is 2.2 meters.

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