CN202176458U - High-efficiency wind power generation device - Google Patents

Abstract

The utility model relates to a high-efficiency wind power generation device, which is characterized in that it is composed of an air collecting cylinder, a central cylinder, a diffuser cylinder, an impeller, a generator, a reinforced steel belt, a concave frame, a small bracket, a wedge-shaped pad, and a yaw platform , large gear ring, pinion gear, reducer, yaw motor, wind direction detector, roller, central shaft, large platform, large bracket, and control box. The utility model can achieve the effects of miniaturization, large installed capacity, low investment and high benefit. The wind collector accelerates the weaker wind on the surface and can be built at a low altitude, thus greatly reducing the cost. The yaw mechanism enables the wind collecting device to track the change of wind direction at any time and face the best wind direction. The windward side of the impeller of the vertical axis wind turbine enters the central tube, and the upwind side is outside the central tube. The low-speed wind accelerated by the air collecting tube enters the central tube, pushing the impeller on the windward side to rotate, and the positive moment is greatly increased; The wind force is reduced under shading, the negative moment is greatly reduced, and the power generation efficiency is improved.

Description

A high-efficiency wind power generation device

technical field

The utility model relates to a low-cost and high-efficiency power generation device under low altitude and weak wind conditions, in particular to a high-efficiency wind power generation device which increases wind speed by collecting wind and improves power generation efficiency.

Background technique

In today's global advocacy of low-carbon circular economy, sustainable development and the depletion of fossil energy resources, the development and utilization of renewable energy has been highly valued in various countries. Among the renewable energy sources, hydroelectric power generation requires the construction of hydropower stations, which have the disadvantages of damaging the ecological environment and being restricted by regions; the disadvantages of solar photovoltaic power generation are that the panels are expensive, and it takes a lot of energy to extract monocrystalline silicon and polycrystalline silicon. Wind power is the cleanest and costs far less than solar power. Human beings have been studying wind power generation for a hundred years. So far, there are mainly two types: horizontal axis wind turbines and vertical axis wind turbines. Among them, horizontal axis wind turbines are mainly used for large-scale generators connected to the grid for power generation, and some small machines are used for off-grid power generation. The vertical axis wind turbine has always been considered to be less efficient than the horizontal axis wind turbine, so the development is relatively slow. There are two mainstream models: Darrieus type and Savonius type, and the global installed capacity is increasing year by year. Both of the above wind turbines have their own advantages and disadvantages. The horizontal axis uses the high wind speed in the sky, so it has to be erected on a tower of nearly 100 meters. The overall equipment is huge, and the blades are more than 60 meters long; the structure is complex, the cabin weighs nearly 100 tons, and a large-tonnage crane is required. The installation site range is narrow, and it cannot be installed in high mountains and places far away from the national grid; the cost is expensive, and the investment per kilowatt of installed capacity exceeds 10,000 yuan. The cost of power generation is much higher than that of thermal power, hydropower, and nuclear power. Development is limited to a certain extent. Although many new types of vertical axis wind turbines have been developed, the problem of low efficiency has not been fundamentally solved, and it has not been widely promoted yet.

Contents of the invention

The utility model overcomes the defects of the above power generation device, and aims to provide a high-efficiency wind power generation device with simple structure, low manufacturing cost and convenient maintenance.

Brief description of the content of the utility model high-efficiency wind power generation device:

The high-efficiency wind power generation device of the utility model is characterized in that: it is composed of an air collecting tube, a central tube, a diffuser tube, an impeller, a generator, a reinforced steel belt, a concave frame, a small bracket, a wedge-shaped pad, a yaw platform, and a large gear. ring, pinion, reducer, yaw motor, wind direction detector, roller, central shaft, large platform, large bracket, and control box. The large platform is fixed on the ground through the large bracket, and the bottom of the yaw platform is equipped with a roller and a large gear. A wind direction detector, a yaw motor, a reducer, and a pinion are arranged on the large platform, and the yaw motor and a reducer, a large Driven by the ring and pinion, it rotates on the large platform around the central axis, and the air collecting cylinder, the central cylinder and the diffuser cylinder are connected as a whole to form the air collecting device, which is fixed on the on the yaw platform.

Air collecting device: It is composed of a streamlined horn-shaped air collecting tube, a central tube and a diffuser tube. The concave frame and small bracket on the yaw platform, as well as the reinforced steel belt and the wedge-shaped cushion block fix the wind collecting device on the yaw platform, and the yaw platform rotates on the large platform.

There is a wind direction detector on the large platform, and the wind direction detector rotates with the wind direction. The data of the angle change and the rated speed data of the generator are processed by the control chip and then transmitted to the yaw motor, which drives the reducer, the pinion gear and the large gear ring, so that The yaw platform rotates.

The wind collecting device tracks the change of wind direction at any time, and faces the best wind direction. When the wind speed is low and the generator is running below the rated speed, the air collecting tube will follow the main wind direction; when the wind speed is high and the generator is running above the rated speed , The air collector avoids the main wind direction and reduces the air intake.

The high-efficiency wind power generation device is equipped with horizontal axis or vertical axis wind turbines; when configuring horizontal axis generator sets, the propeller blades and the generator are directly mounted in the cylindrical central tube by columns, and the columns are fixed on the yaw platform; In the shaft generator set, the generator is directly installed on the yaw platform, and the rotating shaft of the impeller is installed on the vertical wall on one side of the rectangular central tube. The windward side of the impeller enters the central tube, and the upwind side is outside the central tube, and is collected Barrel occlusion.

The high-efficiency wind power generation device of the utility model has the advantages of simple structure, small floor space, flexibility and maneuverability, can be disassembled and reassembled at will, is convenient for relocation, easy maintenance, easy management, can be large or small; The weak wind on the surface is accelerated by the wind collecting device, and the energy of the wind is increased dozens of times. It can be built at a low altitude, thereby greatly reducing the cost of the unit, and the investment is small and the effect is quick. It can be set up individually or in groups according to the needs of users. The use of power generation enterprises has a short payback period, and it can also be used under large wind turbines to improve the utilization efficiency of wind farm space and play a complementary role. The device can be disassembled into small parts, which is convenient for transportation and assembly. It is suitable for high mountains, high buildings, flat land, sea, remote mountainous areas, offshore islands, frontier posts, grassland pastoral areas, deserts and other areas far away from the national power grid, especially suitable for large-tonnage cranes. Unreachable mountainous areas are more suitable for connecting to the power grid close to the load to realize distributed power generation. The device fills the domestic and foreign gaps in low-altitude, low-wind-speed, and low-cost wind power generation. It has broad market application prospects, benefits the country and the people, complies with the requirements of the times, and conforms to national industrial policies and international low-carbon circular economy development trends.

Description of drawings

Figure 1 is a front view of a high-efficiency power generation device using a horizontal-axis wind turbine

Figure 2 is a left view of a high-efficiency power generation device using a horizontal-axis wind turbine

Figure 3 is a front view of a high-efficiency power generation device using a vertical-axis wind turbine

Figure 4 is a top view of a high-efficiency power generation device using a vertical-axis wind turbine

Figure 5 is a left view of a high-efficiency power generation device using a vertical-axis wind turbine

In the figure, 1 is the air collecting tube, 2 is the central tube, 3 is the diffuser tube, 4 is the impeller, 5 is the generator, 6 is the reinforced steel belt, 7 is the concave frame, 8 is the small bracket, 9 is the wedge block, 10 Is the yaw platform, 11 is the large gear ring, 12 is the pinion, 13 is the reducer, 14 is the yaw motor, 15 is the wind detector, 16 is the roller, 17 is the central axis, 18 is the large platform, 19 is the large bracket , 20 is a control box.

Detailed ways

The high-efficiency wind power generation device of the utility model is realized in this way, which will be described in detail below in conjunction with the accompanying drawings. See Fig. 1～Fig. 5, the novel high-efficiency wind power generating device of the present invention is made up of air collecting tube 1, center tube 2, diffuser tube 3, impeller 4, generator 5, reinforcing steel strip 6, concave frame 7, small bracket 8 , wedge block 9, yaw platform 10, large gear ring 11, pinion 12, reducer 13, yaw motor 14, wind direction detector 15, roller 16, central shaft 17, large platform 18, large bracket 19 and control box 20 components, each part is bolted and disassembled and assembled; the large platform 18 is fixed on the ground through a large bracket 19, the bottom of the yaw platform 10 is provided with a roller 16 and a large gear ring 11, and a yaw platform is provided on the top of the large platform 18. Motor 14 and reducer 13, pinion 12, yaw motor 14 and reducer 13, large gear ring 11, pinion 12 transmission connection, yaw platform 10 in yaw motor 14, reducer 13, large gear ring 11, Driven by pinion 12, it rotates on large platform 18 around central axis 17.

The air collecting device is composed of: a streamlined horn-shaped air collecting tube 1, a central tube 2 and a diffuser tube 3, and the streamlined horn-shaped air collecting tube 1, the central tube 2 and the diffusing tube 3 are in an integrated structure , the wind collecting device is fixed on the yaw platform 10 through the concave frame 7 and the small bracket 8 arranged on the yaw platform 10, and the reinforced steel belt 6 and the wedge-shaped spacer 9, and the yaw platform 10 rotates on the large platform 18 Make the air collecting device achieve the best air intake.

A wind direction detector 15 is arranged on the large platform 18, and the wind direction detector 15 rotates with the wind direction, and the data of the angle change and the rated speed data of the generator 5 are processed by the control chip and then transmitted to the yaw motor 14 to drive the speed reducer 13, small The gear 12 and the large gear ring 11 make the yaw platform 10 rotate, so as to ensure that the wind collecting device and the generator set track the change of the wind direction at any time, towards the best wind direction. When the wind speed is too high and the generator exceeds the rated speed, the control system will adjust the direction of the wind collecting device to deviate from the main wind direction, reduce the air intake, and ensure that the generator set is always at the rated speed.

The high-efficiency wind power generation device of the utility model is equipped with two kinds of wind power generators with horizontal axis or vertical axis; see Figure 1 and Figure 2. When configuring a horizontal axis generator set, the central cylinder 2 is cylindrical, and the impeller 4 and the generator 5 are connected by columns. It is directly mounted in the cylindrical center tube 2, and the column is fixed on the yaw platform 10.

See Figure 3, Figure 4, and Figure 5. When configuring a vertical axis generator set, the central cylinder 2 is rectangular, the generator 5 is directly installed on the yaw platform 10, and the rotating shaft of the impeller 4 is installed on the vertical wall on one side of the rectangular central cylinder. , the windward side of the impeller 4 enters the central tube 2, the upwind side is outside the central tube 2, and is blocked by the air collecting tube 1, the ground low-speed wind is accelerated and sent into the central tube 2 after passing through the air collecting tube 1, and the impeller on the windward side is driven Rotation, compared with ordinary vertical axis generator sets, the positive moment is greatly increased; under the cover of the air collector, the wind force acting on the impeller on the upwind side is greatly reduced, so that the negative moment on the upwind side is reduced, and the power generation efficiency is improved.

The utility model can achieve the effects of miniaturization, large installed capacity, low investment and high benefit. The size of the whole unit is determined according to the needs of users and the local wind energy resources, and then the charge controller, battery pack and inverter are configured.

During implementation, first fix the large support 19 on the ground, fix the large platform 18 on the large support 19, then install on the top of the large platform 18: wind direction detector 15, control box 20, central axis 17, yaw motor 14, speed reducer 13 and pinion 15 and other yaw mechanisms. Below the yaw platform 10 , a large gear ring 11 and a roller 16 are fixed, and the roller 16 is inside the large gear ring 11 . The central hole of the yaw platform 10 is sleeved on the central shaft 17 with bearings on the large platform 18, and can rotate around the central shaft. The large gear ring 11 and the pinion 12 mesh. The data that wind direction detector 15 rotates with the wind is transmitted to the control chip in the yaw control box 20, and the built-in software of the chip calculates the optimal angle of the air collector according to the rated speed of the generator and the rotation angle data of the wind direction detector ( make the generator run at full load), and send the control signal to the yaw motor 14, drive the reducer 13, the pinion 12, and then drive the large gear ring 11 to make the yaw platform 10 pass through the roller 16 on the large platform 18 Rotate to ensure that the wind collecting device tracks the change of wind direction at any time and faces the best windward direction. When the wind speed is low and the generator 5 runs below the rated speed, the air collector follows the main wind direction to maximize the air intake; when the wind speed is high and the generator runs above the rated speed, the air collector avoids the main wind direction, Reduce the air intake to prevent the unit from flying.

The air collecting cylinder 1, the central cylinder 2, and the diffuser cylinder 3 are connected as a whole to form an air collecting device, which is fixed on the yaw platform 10 through a reinforced steel belt 6, a concave frame 7, a small bracket 8, and a wedge-shaped pad 9.

The central tube 2 of the wind collecting device using a horizontal axis wind turbine is cylindrical, and its diameter is slightly larger than that of the propeller blade. The impeller 4 and the generator 5 are installed in the central tube 2 and fixed on the yaw platform through a column.

The central cylinder 2 of the wind collecting device using a vertical axis wind turbine is rectangular, and the impeller 4 is of a Savonius type. The generator is directly fixed on the yaw platform 10, and the rotating shaft of the impeller 4 is installed on one side wall of the central tube 2. The side wall is not installed with a wall plate, and half of the impeller 4, that is, the windward side, enters the central tube 2. The other half is the upwind side outside the central cylinder 2. The ground low-speed wind is accelerated and sent into the center tube 2 after passing through the air collecting tube, and drives the impeller on the windward side to rotate. Compared with the ordinary vertical axis generator set, the positive moment is greatly increased; under the shielding of the air collecting tube, it acts on the impeller on the upwind side When the wind force is greatly reduced, the negative moment on the upwind side is reduced, and the power generation efficiency is improved.

The output shaft of the impeller is connected with the generator 5, and then a charging controller, a storage battery pack and an inverter are configured.

Claims (5)

1. A high-efficiency wind power generation device, characterized in that: it is composed of an air collecting tube (1), a central tube (2), a diffuser tube (3), an impeller (4), a generator (5), a reinforced steel belt (6 ), concave frame (7), small bracket (8), wedge block (9), yaw platform (10), large gear ring (11), pinion gear (12), reducer (13), yaw Motor (14), wind direction detector (15), roller (16), central shaft (17), large platform (18), large bracket (19), control box (20), the large platform (18) passes through the large bracket (19 ) is fixed on the ground, the bottom of the yaw platform (10) is provided with a roller (16) and a large gear ring (11), and on the large platform (18) is provided with a wind direction detector (15), a yaw motor (14) and Reducer (13), pinion (12), yaw motor (14) and reducer (13), large gear ring (11), pinion (12) transmission connection, yaw platform (10) in yaw motor Driven by (14), reducer (13), large gear ring (11), and pinion gear (12), it rotates around the central axis (17) on the large platform (18), and the air collecting cylinder (1), central cylinder (2 ), the diffuser tube (3) is connected as a whole to form a wind collecting device, which is fixed on the yaw platform (10 )superior. 2. The high-efficiency wind power generation device according to claim 1, characterized in that: the wind collecting device is composed of a streamlined trumpet-shaped air collecting tube (1), a central tube (2) and a diffuser tube (3). The linear trumpet-shaped air collecting tube (1), the central tube (2) and the diffuser tube (3) are in an integrated structure, and the air collecting device passes through the concave frame (7 ) and small support (8), and reinforcement steel belt (6), wedge-shaped block (9) wind collecting device is fixed on the yaw platform (10), and yaw platform (10) rotates on the big platform (18). 3. The high-efficiency wind power generation device according to claim 1, characterized in that: a wind direction detector (15) is installed on the large platform (18), and the wind direction detector (15) rotates with the wind direction, and the data and power generation of the angle change The rated rotational speed data of the machine (5) is transmitted to the yaw motor (14) after being processed by the control chip, which drives the reducer (13), the pinion gear (12), and the large gear ring (11) to make the yaw platform (10) rotate. 4. The high-efficiency wind power generation device according to claim 2, characterized in that: the wind collecting device tracks the change of wind direction at any time, and faces the best windward direction, when the wind speed is low and the generator (5) is running below the rated speed , the air collector follows the main wind direction; when the wind speed is high and the generator runs at a higher speed than the rated speed, the air collector avoids the main wind direction and reduces the air intake. 5. The high-efficiency wind power generation device according to claim 1, characterized in that: the high-efficiency wind power generation device is equipped with two kinds of wind power generators with horizontal axis or vertical axis; and the generator (5) are directly mounted in the cylindrical center tube (2), and the column is fixed on the yaw platform; when the vertical axis generator set is configured, the generator is directly installed on the yaw platform (10), and the impeller (4) The rotating shaft of the rotor is installed on the vertical wall on one side of the rectangular central tube, the windward side of the impeller (4) enters the central tube (2), and the upwind side is outside the central tube (2) and is blocked by the air collecting tube (1).

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