CN209925149U

CN209925149U - Runaway prevention device for wind turbine

Info

Publication number: CN209925149U
Application number: CN201822120158.9U
Authority: CN
Inventors: 王瑞; 范勇; 王亚鸽
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-17
Filing date: 2018-12-17
Publication date: 2020-01-10
Anticipated expiration: 2028-12-17

Abstract

The utility model relates to an anti-runaway technical field, in particular to a wind turbine generator system runaway prevention device, one side of a cabin is provided with a flow guide cover, a mounting disc is arranged between the flow guide cover and the cabin, the right end face of the mounting disc is fixed with an annular friction disc through screws, the outer circumference of the mounting disc is uniformly and rotatably provided with three blades, the blade handles of the blades are fixed with a first gear through keys, the mounting disc is also provided with a pitch angle motor, and the pitch angle motor is provided with a second gear meshed with the first gear; the left side of the engine room is in screwed connection with two second supports which are symmetrically arranged up and down, an electric telescopic rod is arranged on one side, close to the blades, of each second support, a rubber pad is fixed at the extending end of each electric telescopic rod, and the rubber pads correspond to the friction discs in position. The utility model discloses mainly be applicable to civilian electricity generation, can avoid wind-force or too big emergence that causes the generator driving phenomenon of wind speed, and then the protection generator improves the security simultaneously.

Description

Runaway prevention device for wind turbine

Technical Field

The utility model relates to a prevent driving technical field, specifically be a wind turbine generator system driving prevention device.

Background

The runaway is a phenomenon that overspeed protection fails when the speed of a power machine rises, the rotating speed is out of control and exceeds the rotating speed limit, for example, a runaway accident may occur in a steam turbine and a diesel engine, and the stress of a rotor may exceed the yield limit during runaway, so that a serious accident is easily caused, and therefore, a runaway prevention device is needed.

The traditional runaway prevention device for the wind turbine generator system is poor in runaway prevention capability and easily causes double losses of safety and property.

The traditional wind turbine generator runaway prevention device cannot effectively dissipate heat inside the wind turbine generator, and potential safety hazards can be caused due to overhigh temperature.

The traditional wind turbine generator runaway prevention device cannot effectively utilize solar energy and is not energy-saving.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wind turbine generator system driving prevention device mainly is applicable to civilian electricity generation, can avoid wind-force or too big emergence that causes the generator driving phenomenon of wind speed, and then the protection generator improves the security simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: a wind turbine generator system runaway prevention device comprises blades, a cabin, a solar cell panel and a rubber pad, wherein a flow guide cover is arranged on one side of the cabin, a mounting disc is arranged between the flow guide cover and the cabin, a circular friction disc is fixed on the right end face of the mounting disc through screws, three blades are uniformly and rotatably mounted on the outer circumference of the mounting disc, a first gear is fixed on a blade handle of each blade through a key, a pitch angle motor is further mounted on the mounting disc, and a second gear meshed with the first gear is mounted on the pitch angle motor; the control panel is installed on the right side of the cabin, the single chip microcomputer is installed inside the control panel, the magnesium oxide corrosion-resistant layer is arranged on the outer surface of the cabin, two second supports which are symmetrically arranged up and down are connected to the left side of the cabin through screws, an electric telescopic rod is arranged on one side, close to the blades, of each second support, a rubber pad is fixed to the extending end of each electric telescopic rod, and the rubber pads correspond to the friction disks in position.

The tower is arranged at the bottom end of the engine room, extends into the engine room and is fixedly connected with an outer stator of the generator, and is connected with the support upright; the engine room is fixedly connected with an outer stator of the generator; the solar energy charging and discharging system comprises a cabin, a solar cell panel, a solar charging and discharging controller, a solar panel and a solar panel, wherein the top end of the cabin is provided with first supports, the first supports are connected with the cabin through screws, the solar panel is arranged at the top end of each first support, a storage battery is arranged on the cabin between the two first supports, the output end of each solar panel is electrically connected with the input end of the storage battery through the solar charging and discharging controller, and the solar panel charges the storage battery; a base is arranged on one side of the engine room, and an air speed detector is arranged at the top end of the base.

The top end of the interior of the engine room is provided with a coiled pipe which is arranged in a 'snake' shape, semiconductor refrigeration sheets are uniformly and fixedly arranged in the coiled pipe and are electrically connected with the single chip microcomputer, and aluminum heat dissipation fins are uniformly arranged between the coiled pipes and are distributed at equal intervals.

A temperature sensor is arranged on one side of the top end in the engine room and electrically connected with the single chip microcomputer; the left side of the interior of the engine room is provided with an outer stator and an inner rotor of the generator, and a rotating shaft of the inner rotor is fixedly connected with the mounting disc through a key.

The output of control panel passes through the input electric connection of wire and singlechip, and temperature sensor's output passes through the input electric connection of wire and singlechip, and the output of wind speed detector passes through the input electric connection of wire and singlechip, and the output of battery passes through the wire to be connected with the input electricity of singlechip, and the output of singlechip passes through the input electric connection of wire and pitch angle motor.

Compared with the prior art, the beneficial effects of the utility model are that: this wind turbine group driving prevention device is rational in infrastructure, has following advantage:

1. the utility model discloses a be provided with pitch angle motor, when wind-force is too big and/or the wind speed is too fast, detected by the wind speed detector, single chip microcomputer control pulp pitch angle motor drives the blade and rotates for the moment that the air current produced the blade is minimum, realizes preliminary deceleration, then single chip microcomputer control electric telescopic handle extension makes rubber pad and friction disk contact, utilizes frictional force between them to reach the process of slow deceleration, effectual protection blade and aerogenerator.

2. The utility model discloses a be provided with the coiled pipe, the inside semiconductor refrigeration piece that evenly is provided with of coiled pipe can be effectively to the inside cooling that dispels the heat, is provided with heat radiation fins simultaneously, further cools down the heat dissipation, prevents that aerogenerator from producing the potential safety hazard because overheated.

3. The utility model discloses a be provided with solar cell panel, when sunshine is sufficient, solar cell panel absorbs the light energy and turns into the electric energy, and electric energy storage supplies this device to use, more energy-conservation in the battery.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

FIG. 2 is a schematic view of the installation of a rubber mat;

FIG. 3 is a schematic view of the installation of a blade;

fig. 4 is a circuit connection diagram of the present invention.

In the figure: 1. a blade; 2. an inner rotor; 3. a pod; 4. an outer stator; 5. a friction disk; 6. a tower; 7. a nacelle; 8. a control panel; 9. a single chip microcomputer; 11. a temperature sensor; 12. a base; 13. a wind speed detector; 14. a serpentine tube; 15. a first support; 16. heat dissipation fins; 17. a storage battery; 18. a solar panel; 19. a rubber pad; 20. a second support; 21. an electric telescopic rod; 22. a pitch angle motor; 23. mounting a disc; 24. semiconductor refrigeration piece.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: in order to achieve the above object, the utility model provides a following technical scheme: a wind turbine runaway prevention device comprises blades 1, a cabin 7, a solar panel 18 and a rubber pad 19, wherein one side of the cabin 7 is provided with a guide cover 3 commonly used by a wind driven generator, a mounting disc 23 is arranged between the guide cover 3 and the cabin 7, a circular friction disc 5 is fixed on the right end face of the mounting disc 23 through a screw, three blades 1 are uniformly and rotatably mounted on the outer circumference of the mounting disc 23, a first gear is fixed on a blade handle of each blade 1 through a key, a pitch angle motor 22 is further mounted on the mounting disc 23, and a second gear meshed with the first gear is mounted on the pitch angle motor 22;

a control panel 8 is installed on the right side of the cabin 7, a single chip microcomputer 9 is installed inside the control panel 8, the type of the single chip microcomputer 9 can be HT66F018, a magnesium oxide corrosion-resistant layer is arranged on the outer surface of the cabin 7, and the magnesium oxide corrosion-resistant layer can improve the corrosion resistance of the device, so that the service life is prolonged;

two second supports 20 which are symmetrically arranged up and down are connected to the left side of the engine room 7 through screws, an electric telescopic rod 21 is arranged on one side, close to the blade 1, of each second support 20, a rubber pad 19 is fixed at the extending end of each electric telescopic rod 21, the rubber pads 19 correspond to the positions of the friction discs 5, when the speed reduction is needed, the single chip microcomputer 9 controls the pitch angle motor 22 to enable the blade 1 to rotate so as to change the spiral angle of the blade 1, the blowing of wind to the blade 1 is reduced, then the single chip microcomputer 9 controls the extending end of the electric telescopic rod 21 to extend, the rubber pads 19 are in contact with the friction discs 5 and generate friction, the speed reduction of the blade 1 is achieved, the protection of the runaway is achieved.

The bottom end of the engine room 7 is provided with a tower 6, the tower 6 extends into the engine room 7 and is fixedly connected with the outer stator 4 of the generator, and the tower 6 is connected with the support upright; the engine room 7 is fixedly connected with an outer stator 4 of the generator; the top end of the cabin 7 is provided with a first support 15, the first support 15 is connected with the cabin 7 through screws, disassembly, assembly and maintenance are convenient, the top end of the first support 15 is provided with a solar cell panel 18 through screws, the cabin 7 between the two first supports 15 is provided with a storage battery 17, the output end of the solar cell panel 18 is electrically connected with the input end of the storage battery 17 through a solar charging and discharging controller, and the solar cell panel 18 charges the storage battery through the solar charging and discharging controller under the illumination condition; a base 12 is arranged on one side of the cabin 7, an air speed detector 13 is arranged at the top end of the base 12, and the air speed detector 13 is an air speed sensor with the model number of RS485 manufactured by Hebei high-electronic technology limited;

the top end of the interior of the cabin 7 is provided with a coiled pipe 14, the coiled pipe 14 is arranged in a 'snake' shape, semiconductor refrigeration sheets 24 are uniformly and fixedly arranged in the coiled pipe 14, the semiconductor refrigeration sheets 24 are electrically connected with the single chip microcomputer 9, aluminum heat dissipation fins 16 are uniformly arranged between the coiled pipes 14, and the heat dissipation fins 16 are distributed at equal intervals;

a temperature sensor 11 is arranged on one side of the top end inside the cabin 7, the temperature sensor 11 is a thermocouple temperature sensor with lower price, the temperature sensor 11 detects the temperature inside the cabin 7 when the temperature sensor works, when the temperature reaches a set value, the single chip microcomputer 9 controls the semiconductor refrigerating sheet 24 to work to dissipate heat inside the cabin 7, a heat dissipation hole is formed in the top of the cabin 7, and a water baffle is arranged on the heat dissipation hole and used for preventing rainwater from entering the cabin 7 through the heat dissipation hole;

the left side in the cabin 7 is provided with an outer stator 4 and an inner rotor 2 of the generator, and a rotating shaft of the inner rotor 2 is fixedly connected with the mounting disc 23 through a key; the output of control panel 8 passes through wire and singlechip 9's input electric connection, temperature sensor 11's output passes through wire and singlechip 9's input electric connection, wind speed detector 13's output passes through wire and singlechip 9's input electric connection, battery 17's output passes through the wire and is connected with singlechip 9's input electricity, singlechip 9's output passes through wire and pitch angle motor 22's input electric connection.

The working principle is as follows: when meeting the weather that the wind speed is too high, the wind speed is detected by wind speed detector 13, wind speed detector 13 gives singlechip 9 with signal transmission, when the wind speed is greater than the setting value, singlechip 9 control pitch angle motor 22 rotates, pitch angle motor 22 drives blade 1 through a gear and No. two gears and rotates certain angle, reduce the moment that the air current produced to the blade, then singlechip 9 starts electric telescopic handle 21, electric telescopic handle 21 extends, make rubber pad 19 and friction disk 5 contact and produce frictional force, make the slow deceleration of blade 1, thereby avoid the emergence of driving accident. When the sunlight is sufficient, the solar panel 18 absorbs the light energy and converts the light energy into electric energy, and the electric energy is stored in the storage battery 17 through the solar charge-discharge controller and is used by the device. When the temperature sensor 11 detects that the internal temperature is higher than the set temperature, the singlechip 9 controls the semiconductor refrigerating sheet 24 to work to perform forced heat dissipation and cooling on the inside of the device, so that potential safety hazards caused by overhigh temperature are prevented, and the arranged heat dissipation fins 16 are favorable for improving the heat dissipation effect.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A wind turbine runaway prevention device comprises blades (1), and is characterized by further comprising a cabin (7), a solar cell panel (18) and a rubber pad (19), wherein a flow guide cover (3) is arranged on one side of the cabin (7), a mounting disc (23) is arranged between the flow guide cover (3) and the cabin (7), a circular friction disc (5) is fixed to the right end face of the mounting disc (23) through screws, three blades (1) are uniformly and rotatably mounted on the outer circumference of the mounting disc (23), a first gear is fixed to a blade handle of each blade (1) through a key, a pitch angle motor (22) is further mounted on the mounting disc (23), and a second gear meshed with the first gear is mounted on the pitch angle motor (22); control panel (8) are installed on the right side of cabin (7), and the internally mounted of control panel (8) has singlechip (9), and the surface of cabin (7) is equipped with magnesium oxide corrosion resistant layer, and cabin (7) left side screw connection has two second supports (20) of longitudinal symmetry arrangement to one side that second support (20) are close to blade (1) is provided with electric telescopic handle (21), and the end that stretches out of electric telescopic handle (21) is fixed with rubber pad (19), rubber pad (19) with friction disk (5) position corresponds.

2. A wind turbine runaway prevention device according to claim 1, characterised in that the bottom end of the nacelle (7) is provided with a tower (6), and the tower (6) extends into the nacelle (7) and is fixedly connected with the outer stator (4) of the generator, and the tower (6) is connected with the support upright; the engine room (7) is fixedly connected with an outer stator (4) of the generator; the top end of the cabin (7) is provided with a first support (15), the first supports (15) are connected with the cabin (7) through screws, the top ends of the first supports (15) are provided with solar panels (18) through screws, a storage battery (17) is arranged on the cabin (7) between the two first supports (15), the output end of each solar panel (18) is electrically connected with the input end of the corresponding storage battery (17) through a solar charging and discharging controller, and the solar panels (18) charge the storage batteries through the solar charging and discharging controllers under the illumination condition; a base (12) is arranged on one side of the engine room (7), and an air speed detector (13) is arranged at the top end of the base (12).

3. The wind turbine generator system runaway prevention device according to claim 2, wherein a serpentine tube (14) is installed at the top end inside the nacelle (7), the serpentine tube (14) is arranged in a 'snake' shape, semiconductor refrigeration sheets (24) are uniformly and fixedly installed inside the serpentine tube (14), the semiconductor refrigeration sheets (24) are electrically connected with the single chip microcomputer (9), aluminum heat dissipation fins (16) are uniformly arranged between the serpentine tubes (14), and the heat dissipation fins (16) are distributed at equal intervals.

4. The wind turbine runaway prevention device according to claim 3, characterised in that a temperature sensor (11) is arranged on one side of the top end inside the nacelle (7), and the temperature sensor (11) is electrically connected with the single chip microcomputer (9); the left side of the interior of the engine room (7) is provided with an outer stator (4) and an inner rotor (2) of the generator, and a rotating shaft of the inner rotor (2) is fixedly connected with the mounting disc (23) through a key.

5. The wind turbine generator runaway prevention device according to claim 4, wherein the output end of the control panel (8) is electrically connected with the input end of the single chip microcomputer (9) through a wire, the output end of the temperature sensor (11) is electrically connected with the input end of the single chip microcomputer (9) through a wire, the output end of the wind speed detector (13) is electrically connected with the input end of the single chip microcomputer (9) through a wire, the output end of the storage battery (17) is electrically connected with the input end of the single chip microcomputer (9) through a wire, and the output end of the single chip microcomputer (9) is electrically connected with the input end of the pitch angle motor (22) through a wire.