An H-type three-blade double-layer wind turbine

Abstract

The present invention relates to the field of wind power generation technology, specifically an H-type three-blade double-layer wind turbine, comprising a turbine base, a generator base, a generator, a support shaft, and a battery. The generator base is mounted on the turbine base, a generator is mounted in the generator base, a support shaft is passed through and fixedly mounted in the generator, the generator and the battery are connected by wires, two mounting platforms are mounted on the support shaft, three mounting beams are mounted on each of the two mounting platforms, three outer blades are mounted on a plurality of the mounting beams, and three inner blades are mounted on a plurality of the mounting beams. The present invention also includes a foreign matter removal device mounted in the generator base. When foreign matter is hung on the wind turbine and causes unstable operation, the foreign matter removal device automatically cleans the foreign matter. The present invention prevents the occurrence of unstable operation caused by foreign matter hanging on the wind turbine by the foreign matter removal device automatically cleaning the foreign matter.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, in particular to an H-shaped three-blade double-layer wind turbine generator set. Background Art

[0002] Wind power generation is an environmentally friendly source of electricity, and the world has abundant wind resources. The energy provided by the world's wind in a year is almost three times the energy obtained by burning coal in the world in a year, without causing additional environmental pollution. Therefore, wind power generation is receiving more and more attention from countries around the world.

[0003] Among today's wind power generation equipment, H-type vertical axis wind power generation equipment is widely used in cities due to its advantages such as small space occupation and low noise. It is used as power supply equipment for small urban electrical equipment, such as street lights powered by wind power generation equipment.

[0004] However, cities generate a large amount of lightweight foreign matter that is easily carried by the wind every day. For example, Beijing generates approximately 140,000 tons of plastic packaging waste annually, while Shanghai generates approximately 190,000 tons. Therefore, for H-type vertical axis wind turbines used in urban areas, the presence of lightweight foreign matter is an application issue that must be considered. Otherwise, it will affect the application effectiveness of H-type vertical axis wind turbines within the city. The specific reason is that when foreign matter is attached to the wind turbine, the centrifugal force and air resistance from three directions on the support shaft will not be balanced. As a result, the support shaft will tilt toward the side with greater centrifugal force and air resistance, thereby changing the rotational shape of the support shaft, causing the wind turbine to operate unsteadily and vibrate, which in turn damages the wind turbine and shortens its service life.

[0005] Therefore, an H-type three-blade double-layer wind turbine is proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide an H-type three-blade double-layer wind turbine generator set, which automatically removes foreign objects that cause unstable operation of the wind turbine generator set through a foreign object removal device to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An H-shaped three-blade double-layer wind turbine generator system, comprising:

[0009] Unit base, generator base, generator, support shaft, battery;

[0010] The generator base is installed on the unit base, a generator is installed in the generator base, a support shaft is passed through and fixed in the generator, the generator is connected to the battery by wires, two mounting platforms are installed on the support shaft, three mounting beams are installed on each of the two mounting platforms, a total of three outer fan blades are installed on the multiple mounting beams, and a total of three inner fan blades are installed on the multiple mounting beams. A foreign object removal device is also installed in the generator base. When foreign objects are hung on the wind turbine and cause unstable operation, the foreign object removal device automatically cleans the foreign objects.

[0011] The foreign matter removing device comprises a brake installed on the generator base, and the brake is sleeved on the supporting shaft. A pressure sensor electrically connected to the brake is installed in the generator.

[0012] An alarm is installed on the battery, and a temperature sensor electrically connected to the alarm is installed on the brake.

[0013] Based on this solution, when wind from the external environment blows onto the outer blades and inner blades, the outer blades and inner blades are subjected to force, and through the action of the mounting beam and the mounting platform, the force is transmitted to the support shaft, thereby driving the support shaft to rotate, and then through the generator installed at the lower end of the support shaft, the kinetic energy of the support shaft is converted into electrical energy, thereby completing power generation.

[0014] The following aspects are worth explaining. First, the generator can be divided into an upper shell and a lower shell based on the contact surface of the mounting shell, and the pressure sensor is installed on the contact surface between the upper shell and the lower shell; second, the pressure sensor and the brake, as well as the temperature sensor and the alarm, are electrically connected through a single-chip microcomputer; third, the electrical appliances used in the equipment all use the battery of the wind turbine set as power source.

[0015] Furthermore, by providing a pressure sensor and a brake, when a foreign object is hung on the wind turbine, the centrifugal force and resistance from three directions on the support shaft will be unbalanced, and the support shaft will tilt toward the side with greater centrifugal force and resistance, thereby changing the rotational shape of the support shaft, causing the wind turbine to operate unsteadily and vibrate. When this happens, the tilt of the support shaft will cause pressure perpendicular to the contact surface to be generated between the upper and lower shells of the generator. At this time, the brake is triggered by the pressure sensor installed between the upper and lower shells of the generator. The brake will be activated for a fixed period of time. During this period, under the action of the brake, the support shaft stops rotating. As a result, the foreign object hanging on the wind turbine will no longer be pressed against the outer blades, inner blades or mounting beams due to the operation of the wind turbine. The foreign object can then be separated from the wind turbine by the combined action of gravity and wind, thereby achieving the function of removing foreign objects.

[0016] Furthermore, when a foreign object hanging on a wind turbine cannot be freed by gravity and wind, the brake will be repeatedly triggered by the pressure sensor, causing frictional heat to accumulate within the brake, potentially damaging the brake and other components within the equipment. However, by installing an alarm and a temperature sensor, when the brake is repeatedly triggered by the pressure sensor, the temperature within the brake continues to rise until the temperature sensor is triggered, causing the alarm installed on the battery to sound, prompting personnel to manually remove the foreign object.

[0017] It is worth adding that in order to prevent the brake from continuing to heat up after the temperature sensor is triggered, thereby causing damage to the brake, the temperature sensor can be electrically connected to the brake through PLC control. The specific triggering process can be divided into two types. The first triggering method is that after the temperature sensor is triggered, the brake completely locks the support shaft, thereby preventing the support shaft from continuing to rotate and generating heat; the second triggering method is that after the temperature sensor is triggered, the brake completely releases the support shaft, allowing the support shaft to rotate. At this time, the brake will obviously not continue to heat up. Of these two triggering processes, the advantage of the former is that it can prevent the equipment from continuing to operate with foreign objects hanging on it, thereby preventing damage to the equipment due to vibration. However, the long-term use of the brake will consume a large amount of battery power. The advantage of the latter is that the brake requires less power, but it cannot prevent the equipment from continuing to operate with foreign objects hanging on it, and therefore cannot prevent damage to the equipment due to vibration.

[0018] As a preferred solution of the present invention, an electric telescopic rod electrically connected to the temperature sensor is installed on the generator base, a ring platform 2 is installed on the electric telescopic rod, and a ring platform 1 that cooperates with the ring platform 2 is installed on the bottom end of the mounting platform with a lower vertical height.

[0019] A heat insulation cover for providing heat preservation effect for the brake is installed on the generator base, and the heat insulation cover is sleeved on the support shaft and covers the brake inside.

[0020] The second ring platform is installed on the top of the outer surface of the heat insulation cover, the electric telescopic rod is arranged inside the heat insulation cover, and the output end of the electric telescopic rod is arranged on the top of the inner surface of the heat insulation cover.

[0021] The heat shield is provided with a plurality of guide grooves 1 and a plurality of guide grooves 2, and the bottom ends of the guide grooves 1 and the guide grooves 2 are both connected to the interior of the heat shield, each guide groove 1 corresponds to a guide groove 2 one by one, and the side surface of the guide groove 1 is connected to the side surface of the corresponding guide groove 2, and the generator base is provided with a plurality of guide columns that cooperate with the guide grooves 1, and the guide columns are provided with grooves that cooperate with the guide grooves 2.

[0022] A dustproof net is installed in the heat insulation cover.

[0023] It is worth noting that two sets of ratchets are respectively manufactured on the ring platform 1 and the ring platform 2, and the ring platform 1 and the ring platform 2 are matched through these two sets of ratchets. Therefore, when the ring platform 1 and the ring platform 2 are matched, the rotation of the ring platform 1 around its axis is restricted by the ring platform 2.

[0024] By setting up ring platform 1, ring platform 2 and an electric telescopic rod, when the temperature sensor is triggered, the electric telescopic rod extends, pushing ring platform 2 to move upward until ring platform 2 and ring platform 1 are matched through the ratchet. At this time, ring platform 1 is restricted by ring platform 2 and cannot continue to rotate, thereby stopping the support shaft from rotating. As a result, heat is no longer generated on the brake, protecting the brake from damage due to overheating.

[0025] Furthermore, because the natural wind in the environment will produce a cooling effect on the brake, and the brake cools down too quickly, the temperature sensor may not be triggered correctly, affecting the normal use of the equipment. However, the excessively high temperature inside the brake is bound to damage the brake itself. Therefore, by providing a heat insulation cover, the heat generated by the brake can be preserved in the space inside the heat insulation cover, reducing the heat dissipation efficiency of the space around the brake and inside the heat insulation cover, so that the temperature sensor can be triggered more easily.

[0026] On the basis of the above scheme, the second ring platform is installed on the outer top of the heat insulation cover, and the output end of the electric telescopic rod is placed on the inner top of the heat insulation cover, so that the heat insulation cover can be lifted upward after the temperature sensor is triggered, thereby exposing the brake to the natural wind in the environment, so that the brake in a high temperature state can obtain a better heat dissipation effect, thereby protecting the brake from damage and improving the reliability of the equipment.

[0027] Furthermore, by setting the guide column, guide groove 1 and guide groove 2, when the ring platform 1 and the ring platform 2 cooperate with each other, the portion with the groove on the guide column cooperates with the guide groove 2, that is, the portion with the groove on the guide column is located at the entrance portion of the guide groove 2. Because the ring platform 1 has inertia at this time, the ring platform 1 pushes the ring platform 2 under the action of inertia, so that the portion with the groove on the guide column enters the guide groove 2. At this time, the heat insulation cover will not be able to move downward under the action of the guide column, and the ring platform 1 and the ring platform 2 will continue to be in a coordinated state, preventing damage to the equipment due to unstable operation, and at the same time reducing the bending moment on the electric telescopic rod, preventing the electric telescopic rod from being damaged due to excessive bending moment.

[0028] In addition, when the heat insulation cover is lifted upward, the electric telescopic rod and the brake will be exposed to the natural wind environment. The dust carried in the natural wind can easily damage the electric telescopic rod and the brake, thereby reducing the service life of the equipment. Therefore, by setting a dustproof net, the electric telescopic rod and the brake are both covered with a dustproof net on the outside, which has a dustproof effect, thereby preventing dust from damaging them and extending the service life of the equipment.

[0029] As a preferred solution of the present invention, the generator adopts a magnetic levitation generator, a mounting box is installed on the top of the support shaft, a centrifugal clutch is built into the mounting box, a switch electrically connected to the generator is installed in the mounting box, and the switch and the centrifugal clutch cooperate with each other, an anemometer is installed on the mounting box, the bottom end of the anemometer extends into the mounting box, and the centrifugal clutch is installed at the bottom end of the anemometer.

[0030] A movable sleeve is installed in the installation box, and the movable sleeve is arranged on the centrifugal clutch, and the switch is installed on the inner side of the movable sleeve.

[0031] Several points are worth noting. First, analogizing the process of starting a car, it is not difficult to understand that due to inertia, the force required to start a wind turbine generator set is greater than the force required to maintain its rotation. Second, when the switch is triggered, the electrical connection between the generator and the battery changes. The original process, in which the generator converts mechanical energy into kinetic energy and stores it in the battery, changes to the battery converting electrical energy into kinetic energy through the generator. In short, the generator's purpose is reversed, and it is used as a motor. This process is the pre-start of the wind turbine generator set. Third, the electrical connection between the switch and the generator can be configured so that when the switch is triggered, the PLC and relay cooperate to disconnect the circuit that charges the battery through the generator and connect the discharge circuit between the battery and the generator coil. The battery then flows current into the generator coil, causing the generator rotor to rotate. Fourth, the movable sleeve and the mounting box cooperate with each other, allowing the movable sleeve to rotate within the mounting box. Specifically, when the centrifugal clutch generates friction with the movable sleeve due to the increase in speed, the centrifugal clutch can drive the movable sleeve to rotate.

[0032] By setting up a coordinated relationship between the centrifugal clutch and the anemometer, when the natural wind in the external environment reaches the set wind speed and the anemometer's rotational speed is high enough, the centrifugal clutch cooperates with the switch and triggers the switch, at which point the wind turbine is pre-started. The duration of the wind turbine's pre-start can be set via the PLC to ensure the wind turbine's pre-start effectiveness. In this case, the wind turbine obtains an initial power source for startup, thereby reducing the starting wind speed required for the wind turbine, making it easier for the wind turbine to start generating electricity and increasing the wind turbine's average power generation. In addition, this design also allows the support shaft, which has stopped rotating due to the action of the brake, to resume normal operation as quickly as possible, avoiding the problem of the wind turbine being difficult to restart in low wind speed conditions.

[0033] Furthermore, by providing a movable sleeve, when the anemometer speed is high enough, the centrifugal clutch will engage with the movable sleeve and trigger a switch located on the movable sleeve. Furthermore, after the centrifugal clutch is triggered, the anemometer does not stop rotating due to the presence of the movable sleeve. Instead, the centrifugal clutch drives the movable sleeve to rotate, thus preventing the anemometer from suddenly stopping due to the installation box. This solution has the advantage of preventing damage to equipment components caused by the impact of the anemometer suddenly stopping.

[0034] It is worth adding that in order to facilitate the electrical connection between the switch and the generator, two conductive rings can be installed on the inner wall of the installation box. The two conductive rings are arranged in the vertical direction. When the switch is triggered, the two conductive rings are connected to form a closed circuit, thereby generating an electrical signal.

[0035] In summary, compared with existing equipment, the advantages of the present invention are:

[0036] 1. By setting up a pressure sensor and a brake, when there is a foreign object hanging on the wind turbine, the brake is triggered and the support shaft stops rotating. At this time, the foreign object can be separated from the wind turbine through the combined action of gravity and wind force, thereby realizing the function of removing foreign objects. In addition, when the brake is repeatedly triggered by the pressure sensor, the temperature inside the brake continues to rise until the temperature sensor is triggered, causing the alarm installed on the battery to sound, prompting relevant personnel to come and manually remove the foreign object.

[0037] 2. When the temperature sensor is triggered, the electric telescopic rod extends, pushing the second ring platform upward. The second ring platform engages with the first ring platform through the ratchet gear, causing the support shaft to stop rotating. As a result, the brake no longer generates heat, protecting the brake from damage due to overheating. In addition, by providing a heat shield, electric telescopic rod, guide column, guide groove 1 and guide groove 2, the heat generated by the brake before the alarm is sounded can be stored in the space within the heat shield, making it easier to trigger the temperature sensor. At the same time, after the alarm is sounded, the brake can be exposed to the natural wind in the environment, so that the high-temperature brake can obtain better heat dissipation effect, thereby protecting the brake from damage and improving the reliability of the equipment.

[0038] 3. By coordinating the switch, centrifugal clutch, and anemometer, the wind turbine pre-starts when the switch is triggered, generating an initial starting momentum. This reduces the required starting wind speed, making it easier for the wind turbine to start generating electricity and increasing its average power generation. Furthermore, this design allows the support shaft, which has been stopped by the brake, to resume normal operation quickly, avoiding the difficulty of restarting the wind turbine in low wind speeds. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 Schematic diagram of the structure of the wind turbine generator set of the present invention;

[0040] Figure 2 This is a plan view of the wind turbine generator set of the present invention;

[0041] Figure 3 for Figure 2 Enlarged view of part A;

[0042] Figure 4 Schematic diagram of the matching relationship between the heat shield and the guide groove 1;

[0043] Figure 5 Schematic diagram of the matching relationship between the heat shield and the second guide groove;

[0044] Figure 6 for Figure 2 Sectional view of the BB section plane.

[0045] In the figure: 1. Outer fan blades; 2. Anemometer; 3. Mounting box; 4. Mounting platform; 5. Mounting beam; 6. Support shaft; 7. Inner fan blades; 8. Heat shield; 9. Generator base; 10. Unit base; 11. Generator; 301. Movable sleeve; 302. Switch; 303. Centrifugal clutch; 401. Ring platform 1; 801. Brake; 802. Electric telescopic rod; 803. Guide column; 804. Ring platform 2; 805. Guide groove 1; 806. Guide groove 2; 1101. Pressure sensor; 8021. Temperature sensor. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0047] See also Figures 1 to 4 , showing the first specific embodiment of the present invention.

[0048] In the following installation process, all connections not specifically mentioned are threaded connections.

[0049] As a preparation before the installation of the present invention, the unit base 10 is pre-installed on the ground. In order to facilitate the installation of internal components, the generator base 9 can be divided into an upper part and a lower part. The pressure sensor 1101 in the generator 11 is installed on the contact surface between the upper shell and the lower shell. A mounting seat for installing the brake 801 is pre-made on the external top of the upper part of the generator base 9, and a through hole for passing the support shaft 6 is opened at the center of the mounting seat. For the brake 801, an energized electromagnetic brake is selected. A ring platform 1 401 is pre-installed on one of the mounting platforms 4, and a ring platform 2 804 is pre-installed on the heat insulation cover 8. For easy installation, the installation box 3 can be split into two parts, the box cover and the box body, which are manufactured separately and installed in coordination in the subsequent process. In addition, a mounting hole for installing the switch 302 is reserved in the movable sleeve 301.

[0050] When installing the present invention, take out the lower part of the generator base 9, install the generator 11 into the lower part of the generator base 9, then take out the upper part of the generator base 9, install multiple electric telescopic rods 802 to the external top of the upper part of the generator base 9, then take out the brake 801, install the temperature sensor 8021 on the metal shell of the brake 801, then put a dustproof net on the outside of the brake 801, then install the support shaft 6 into the brake 801 in an interference fit manner, and then install the brake 801 to the mounting base. Then, the heat shield 8 is passed from top to bottom onto the support shaft 6, and then the upper part of the generator base 9 is installed on the lower part of the generator base 9. In this process, the support shaft 6 is connected to the rotor of the generator 11 by means of a coupling. At this time, the multiple electric telescopic rods 802 and the heat shield 8 are not connected, and dustproof nets are set on the outside of the multiple electric telescopic rods 802. After that, the multiple guide columns 803 are respectively passed through the multiple guide slots 805 and installed on the upper part of the generator base 9. Then, two Mounting platform 4, connect the mounting platform with ring platform 1 401 to the lower part of support shaft 6 by welding, and then connect another mounting platform 4 to the upper part of support shaft 6 by welding, and then install three mounting beams 5 on the mounting platform 4 located at the lower part of support shaft 6. Similarly, install the other three mounting beams 5 on the mounting platform 4 located at the upper part of support shaft 6, and the mounting beam 5 installed on the mounting platform 4 located at the upper part of support shaft 6 is in the same position as the mounting beam 5 installed on the mounting platform 4 located at the lower part of support shaft 6. Positions are aligned one by one, and then multiple outer blades 1 and multiple inner blades 7 are respectively installed on the corresponding mounting beams 5. Then, the movable sleeve 301 is removed, the switch 302 is installed in the mounting hole, and two conductive rings are installed on the inner wall of the mounting box 3. The conductive rings are electrically connected to the generator 11. Then, the mounting box 3 body is removed, and the centrifugal clutch 303 is installed in the box body. Then, the box cover is put on the anemometer 2, and then the anemometer 2 is connected to the centrifugal clutch 303 by key connection. Finally, the box cover is installed on the box body. At this point, all installations of the present invention are completed.

[0051] As experimental subjects, two identical wind turbines were used, and one was modified to create the device of the present invention. While the present invention was in operation, both the present invention and the original device were placed simultaneously in a wind tunnel test site, with all parameters set identically for both devices. A wind speed meter was also installed at a position aligned with the height of the top of the outer blades 1 of the present invention. The wind speed within the test site was continuously adjusted, and the startup state of the present invention was observed to determine the minimum startup wind speed required for both the present invention and the original device.

[0052] Experiments have shown that the minimum starting wind speed of the present invention is 1.5 m / s, while the minimum starting wind speed of the original equipment is 1.8 m / s. That is, the starting wind speed required by the present invention is reduced by 17% compared with the original equipment.

[0053] Reference Figures 1 to 4 , showing the second specific embodiment of the present invention. The difference between the second specific embodiment and the first specific embodiment is that in the experimental site, the experimental wind speed is set to a constant wind speed, and plastic bags are added as flying lightweight foreign objects to observe the ability of the present invention to automatically remove foreign objects. The specific observation method is to count the number of plastic bags hung on the device of the present invention and the number of plastic bags automatically removed by the device of the present invention, respectively, and record them as A and B, and calculate the removal rate K = (B / A)*100%.

[0054] Through an experiment lasting 1 hour, it can be obtained that A=24, B=19, that is, K=79%. Among them, among the 5 plastic bags that were not cleared, 4 triggered the alarm and stopped the equipment of the present invention. The remaining 1 plastic bag did not trigger the alarm because it was deformed in the wind field and then entangled on the mounting beam 5. Therefore, it did not have a significant impact on the force on the support shaft 6, so the pressure sensor 1101 was not triggered.

[0055] It can be seen from experiments that the present invention has a good effect of removing light foreign matter hanging on the equipment.

Claims

1. An H-shaped three-blade double-layer wind turbine generator system, comprising: Unit base (10), generator base (9), generator (11), support shaft (6), battery; The generator base (9) is mounted on the unit base (10), a generator (11) is mounted in the generator base (9), a support shaft (6) is passed through and fixedly mounted in the generator (11), and the generator (11) is connected to the battery via an electric wire; Two mounting platforms (4) are mounted on the support shaft (6), three mounting beams (5) are mounted on each of the two mounting platforms (4), three outer fan blades (1) are mounted on the plurality of mounting beams (5), and three inner fan blades (7) are mounted on the plurality of mounting beams (5); It is characterized by further comprising: A foreign matter removal device is installed in the generator base (9). When foreign matter is hung on the wind turbine generator set and causes unstable operation, the foreign matter removal device automatically removes the foreign matter. The foreign matter removal device comprises a brake (801) mounted on a generator base (9), and the brake (801) is sleeved on a support shaft (6); An electric telescopic rod (802) electrically connected to a temperature sensor (8021) is installed on the generator base (9), and a second ring platform (804) is installed on the electric telescopic rod (802); A heat insulation cover (8) for providing heat preservation effect for the brake (801) is installed on the generator base (9), and the heat insulation cover (8) is sleeved on the support shaft (6) and covers the brake inside. The second ring platform (804) is installed on the external top of the heat insulation cover (8), the electric telescopic rod (802) is arranged inside the heat insulation cover (8), and the output end of the electric telescopic rod (802) cooperates with the internal top of the heat insulation cover (8); The top of the heat shield (8) is provided with a plurality of guide grooves 1 (805) and a plurality of guide grooves 2 (806), and the bottom ends of the guide grooves 1 (805) and the guide grooves 2 (806) are both connected to the interior of the heat shield (8), each of the guide grooves 1 (805) corresponds to a guide groove 2 (806) one by one, and the side of the guide groove 1 (805) is connected to the side of the corresponding guide groove 2 (806), and the generator base (9) is provided with a plurality of guide columns (803) that cooperate with the guide grooves 1 (805), and the guide columns (803) are provided with grooves that cooperate with the guide grooves 2 (806).

2. The H-type three-blade double-layer wind turbine according to claim 1, characterized in that: A pressure sensor (1101) electrically connected to the brake (801) is installed in the generator (11).

3. The H-type three-blade double-layer wind turbine according to claim 1, characterized in that: An alarm is installed on the battery, and a temperature sensor (8021) electrically connected to the alarm is installed on the brake (801).

4. The H-type three-blade double-layer wind turbine according to claim 1, characterized in that: A ring platform 1 (401) that cooperates with a ring platform 2 (804) is installed on the bottom end of the installation platform (4) with a lower vertical height.

5. The H-type three-blade double-layer wind turbine according to claim 1, characterized in that: The generator (11) is a magnetic levitation generator. A mounting box (3) is mounted on the top of the support shaft (6). A centrifugal clutch (303) is built into the mounting box (3). A switch (302) electrically connected to the generator (11) is mounted in the mounting box (3). The switch (302) and the centrifugal clutch (303) cooperate with each other. An anemometer (2) is mounted on the mounting box (3). The bottom end of the anemometer (2) extends into the mounting box (3), and the centrifugal clutch (303) is mounted on the bottom end of the anemometer (2).

6. The H-type three-blade double-layer wind turbine according to claim 5, characterized in that: A movable sleeve (301) is installed in the installation box (3), and the movable sleeve (301) is sleeved on the centrifugal clutch (303), and the switch (302) is installed on the inner side of the movable sleeve (301).

7. The H-type three-blade double-layer wind turbine according to claim 1, characterized in that: A dustproof net is installed in the heat insulation cover (8).

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