CN200985865Y - Vertical shaft wind power generation plant - Google Patents

Abstract

The utility model provides a vertical axis wind power generation device, which includes a rotating shaft, a wind wheel mechanism, a support frame, a speed-increasing gearbox and a generator, and also includes an upper fixed plate, a lower fixed plate, a supporting column, and a wind guide Plate and wind deflector guiding device, wherein, the lower fixed plate is set on the support frame, and 2N (N is a natural number, wherein, 6≥N≥2) support columns are arranged between the upper and lower fixed plates, and each A wind deflector is movably connected to the supporting column, and the rotating shaft is respectively connected to the upper and lower fixed plates through the upper and lower sets of bearings arranged on it. On the radius circle, the wind wheel mechanism is arranged on the rotating shaft between the upper and lower fixed disks, and the wind deflector guide device is connected to the wind deflector to control the steering of the wind deflector; this device has strong wind direction adaptability capacity, and can adjust the air intake according to the wind speed, realizing the scientific and reasonable use of wind energy.

Description

Vertical Axis Wind Turbine

【Technical field】

The utility model relates to a wind power generation device, in particular to a vertical axis wind power generation device capable of efficiently utilizing wind energy to generate electricity. When high wind speed occurs, the guide of the wind deflector can be automatically adjusted to control the air intake of the wind wheel mechanism, so that the wind wheel mechanism can run at the rated speed.

【Background technique】

At present, there are mainly two types of devices used for wind power generation: one is the horizontal axis high-speed wind generator, and the other is the vertical axis wind generator; the vertical axis wind generator can be divided into two types according to the form of work: using aerodynamic The vertical axis wind turbine that does work (such as S-type wind turbine) and the vertical axis wind turbine that uses the lift of the airfoil to do work (such as Darrieux type wind turbine). Among them, the horizontal axis high-speed wind turbine Wind turbines and vertical axis Darrieux wind turbines are the most widely used, especially in commercial applications, and the former is the majority.

Known commercial large-scale wind power generators are generally horizontal axis wind power generators, which are composed of wind rotors, speed-increasing gearboxes, generators, yaw devices, pitch control systems, towers and other components; the function of the wind rotors is to Wind energy is converted into mechanical energy. It consists of blades with excellent aerodynamic performance (currently, commercial units generally have 2 to 3 blades) mounted on the hub. The low-speed rotating wind wheel is accelerated by the speed-up gearbox through the transmission system, and the power Passed to the generator; the above-mentioned components are all installed on the plane of the nacelle, and the whole nacelle is lifted by a tall frame. Since the wind direction changes frequently, in order to effectively use wind energy, a windward device must be installed, which is based on the wind direction measured by the wind direction sensor. Signal, the controller controls the yaw motor, drives the small gear meshed with the large gear on the tower to rotate, so that the nacelle is always facing the wind direction, so as to keep the wind wheel rotating to generate electricity. When the wind speed changes, the pitch control system adjusts the wind blades The power angle to adapt to the change of different wind speeds.

Vertical axis wind turbines are divided into two main categories, one is to use aerodynamic resistance to do work, the typical structure is an S-shaped wind wheel, which is composed of two semi-cylindrical blades whose axes are staggered, and its advantage is the starting torque Larger, the disadvantage is that due to the asymmetrical airflow around the wind rotor, it generates lateral thrust; for larger wind turbines, it is difficult to adopt this structural form due to the limitation of deflection and safety limit stress ; The wind energy utilization coefficient of general S-type wind turbines is lower than that of high-speed vertical-axis or horizontal-axis wind turbines, and the power output provided by the wind rotor with a certain size, weight and cost is low, so it is not competitive for power generation. The other type is to use the lift of the airfoil to do work. The most typical one is the Darrieux type wind turbine, which has a high work efficiency in the case of high-speed wind, but the work efficiency is poor in the case of low-speed wind. Due to the wind direction and wind speed The range of change is very large. In wind power generation, the wind rotor has very high requirements for wind direction and wind speed adaptability. The wind turbine starts to generate electricity when the wind speed reaches the activation wind speed. When the wind speed exceeds the rated value, the speed of the wind rotor increases. Its power generation remains unchanged until the wind speed reaches the cut-off wind speed, so that the wind wheel is automatically stopped to protect the entire power generation system.

When the wind speed changes in the existing horizontal axis wind turbines, in order to adjust the speed, it is usually necessary to configure a pitch adjustment system to adjust the power angle of the blades to adapt to the change of wind speed. At the same time, a windward device is also required to make the The wind rotor of the horizontal-axis wind generator adapts to changes in different wind directions, so its disadvantages mainly include: complex structure, high cost, and difficult maintenance; although the existing vertical-axis wind generators can overcome the problem of wind direction changes, Moreover, it has strong adaptability to changes in wind direction and does not require windward devices. However, because of the fixed power angle of the wind blades, it has poor adaptability to changes in wind speed and low work efficiency. It has not been well promoted in practical application.

【Content of invention】

In order to overcome the deficiencies in wind speed or wind direction adaptability of wind power generators in the prior art, the utility model provides a vertical axis wind power generator, which not only has strong wind direction adaptability, but also can fully Utilize the opening and closing of the movable fan blades to improve the utilization efficiency of wind energy, that is, when the fan blades are in the working state of half a cycle, the movable fan blades are closed to increase the wind receiving area of the fan blades, and when returning to the half cycle state, the movable fan blades Open it to reduce the resistance of the wind force, thereby improving the efficiency of wind energy utilization. At the same time, when working half a cycle, the wind deflector with adjustable steering will concentrate the wind force inside the wind wheel mechanism, and when returning to the half cycle, the wind deflector will block the wind force at the The outer side of the wind wheel mechanism further improves the efficiency of the wind wheel mechanism in utilizing wind energy; and it can automatically adjust the direction of the wind deflector at high wind speeds to reduce the air intake of the wind turbine, thereby reducing the intensity of the wind force received by the wind wheel mechanism. Small, and then achieve the purpose of controlling the speed of the wind turbine mechanism and realizing the scientific and rational utilization of high wind speed wind energy.

The technical scheme that the utility model solves its technical problem adopts is:

A vertical axis wind power generation device, which has: a vertically arranged rotating shaft, a wind wheel mechanism installed on the rotating shaft, a support frame for supporting the rotating shaft and the wind wheel mechanism, a speed-increasing gearbox connected to the lower part of the rotating shaft, connected to The generator of the speed-increasing gearbox also includes an upper fixed plate, a lower fixed plate, a supporting column, an air deflector and an air deflector guiding device, wherein the lower fixed plate is arranged on the support frame, and between the upper and lower fixed plates There are 2N (N is a natural number, wherein, 6≥N≥2) supporting columns are arranged between them, and a wind deflector is movably connected to each supporting column, and the rotating shaft passes through the upper and lower sets of bearings arranged on it. It is connected with the upper and lower fixed disks, the supporting columns are arranged at equal angles on a circle with equal radius centered on the rotating shaft, the wind wheel mechanism is arranged on the rotating shaft between the upper and lower fixed disks, and the wind guide The plate guiding device is connected to the air deflector to control the steering of the air deflector; it should be understood that the air deflector guiding device can be a set of guiding devices that control 2N air deflectors at the same time, or 2N sets that control 2N The guiding device of the block wind deflector;

Based on the above, the vertical axis wind power generation device also includes a middle fixed plate, the middle fixed plate is arranged on the support column between the upper and lower fixed plates, and the wind wheel mechanism has two sets of upper and lower sets, wherein the upper wind The wheel mechanism is arranged on the rotating shaft between the upper and middle fixed disks, and the lower wind wheel mechanism is arranged on the rotating shaft between the lower and middle fixed disks;

Based on the above, the wind deflector guide device includes 2N (N is a natural number, where 6≥N≥2) wind deflector guide rods, 2N (N is a natural number, where 6≥N≥2) hub guides Rod, guide hub with the rotation axis as the center of rotation, hub steering device and hub steering degree control device, wherein, one end of the hub guide rod is fixed at an equal angle along the circumferential direction of the guide hub, and the other end of the hub guide rod guides the corresponding wind deflector The middle part of the connecting rod is movably connected, and the two ends of the air deflector guide connecting rod are respectively movably connected to the horizontal ends of the two wind deflectors that are symmetrical about the rotation axis. The ends of equal-radius circles centered on the rotating shaft are close to each other in the circumferential direction, the guide hub and the hub steering device are arranged on the fixed disk, and the hub steering degree control device is connected to the hub steering device so as to control the rotation of the hub steering device action;

Based on the above, the hub steering degree control device adopts a rotating shaft speed switch, and the rotating shaft speed switch controls the start and stop of the hub steering device according to its preset rotating shaft speed, so as to control the steering degree of the guide hub; but It will be understood that the hub steering degree control device can also be other intelligent control devices;

Based on the above, the hub steering device adopts a hydraulic mechanism that is movably connected to the rim of the guide hub, and there are two sets of hydraulic mechanisms, and the two sets of hydraulic mechanisms are symmetrically and movably connected to the rim of the guide hub;

Based on the above, the hydraulic mechanism includes a hydraulic rod that is movably connected to the rim of the guide hub and a hydraulic pump that drives the hydraulic rod, and the hydraulic pump is connected to the rotating shaft speed switch so as to control its own start and stop according to the rotating shaft speed;

Based on the above, the structure adopted by the vertical axis wind power generation device may include an upper fixed plate, a middle fixed plate and a lower fixed plate, there are 8 support columns, 8 wind deflectors, and the wind wheel mechanism has The upper and lower sets, the wind deflector guide device includes 8 wind deflector guide links and 8 hub guide rods, and the guide hub and hub steering device are arranged on the middle fixed plate;

Based on the above, the wind wheel mechanism includes: a wind wheel hub sleeved on the rotating shaft, a plurality of rectangular fan blade frames arranged at equal angles along the circumferential direction of the wind wheel hub, and fixed fan blades arranged at intervals on the fan blade frames and movable fan blades, wherein, the wind-receiving surface of the fixed fan blade has a groove-shaped surface, the wind-receiving resistance surface of the fixed fan blade has an arc-shaped surface that can reduce wind resistance, and the movable fan blade is arranged on the fixed wind blade. The leaves or blades are placed on the frame so that they are closed to do work by wind force and open to reduce wind resistance when subjected to wind resistance;

Based on the above, the longitudinal axis A on the movable fan blade divides the movable fan blade into two parts a and b in the horizontal direction, and the lengths of the two parts a and b in the horizontal direction are a1 and b1 respectively, where a1<b1 The movable fan blade has a longitudinal axis C on the movable fan blade frame corresponding to the movable fan blade on the fan blade frame, and the longitudinal axis C divides the movable fan blade frame into c and d in the horizontal direction. The lengths of the two parts c and d in the horizontal direction are c1 and d1 respectively, where c1<d1; the movable blade is movably connected to the longitudinal axis C of the corresponding movable blade frame along the longitudinal axis A, wherein , part a is set on the same side as the wind resistance surface of the blade frame, part b is set on the same side as the wind force surface of the blade frame, and a1>c1, b1>d1;

Based on the above, one end of the movable fan blade can also be movably connected to the wind resistance surface of the fixed fan blade, and the other end is set through the fan blade frame, and its horizontal length is longer than its corresponding movable wind blade on the fan blade frame. The length of the leaf frame in the horizontal direction.

After many years of painstaking research and continuous improvement by the applicant, the utility model has substantial characteristics and progress compared with the prior art. Specifically, its beneficial effects mainly lie in:

1. The vertical axis wind power generation device is equipped with 2N evenly distributed and adjustable guide plates, and the 2N air inlets formed by the 2N air guide plates are set opposite to the direction of the rotation axis, and the air inlets are of the same size, so that Possess the ability to concentrate the wind from any direction and adapt to any change of wind direction;

2. When the wind speed is low, the vertical axis wind power generation device utilizes the special structure of the wind blade and the combined effect of the wind deflector to increase the driving force of the wind blade in the half cycle of the wind wheel, and reduce the air resistance in the return half cycle, thus greatly Improve the efficiency of the wind wheel mechanism in utilizing wind energy; at high wind speeds, when the speed of the wind wheel mechanism exceeds the upper limit of the rated speed, the wind deflector can automatically close to a smaller air inlet state, so that the wind wheel can run at the rated speed under high wind speed , to achieve good adaptability to high wind speed;

3. The wind deflector used in the vertical axis wind power generation device is not a wind rotating part, and the structure is simple and flexible, and the guide device of the wind deflector not only makes it easy to turn, but also strengthens the connection firmness between the wind deflectors ;

4. The vulnerable parts of the wind wheel mechanism (such as wind blades, etc.) are installed in the surround of the wind deflector, which greatly reduces the loss of the vulnerable parts of the wind wheel mechanism;

5. The vertical axis wind power generation device has high wind energy utilization efficiency, strong adaptability to wind direction and wind speed, firm and reliable structure, safe and stable operation, economical and practical, cost-effective use, simple and convenient maintenance, and is suitable for river beaches, coasts, mountain tops, etc. Promotion and application of wind flow areas.

【Description of drawings】

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a top view schematic diagram of the position and structure of the wind wheel mechanism, supporting columns and wind deflectors of the present invention;

Fig. 3 is a schematic diagram of the connection structure of the wind deflector and the support column of the present invention;

Fig. 4 is a schematic diagram of the planar unfolded structure of two symmetrical blade frames of the present invention;

Fig. 5 is a schematic diagram of the connection structure of the movable blade and the blade frame of the present invention;

Fig. 6 is a top view schematic diagram of the connection structure of the wind deflector and the wind deflector guiding device of the present invention;

Fig. 7 is a top view schematic diagram of the connection structure of the wind deflector and the wind deflector guide device in the limit state of the utility model;

Fig. 8 is a partially enlarged view of part A in Fig. 4;

Fig. 9 is a schematic diagram of a connection structure of the fixed fan blade and the movable fan blade of the present invention;

Fig. 10 is a schematic diagram of the wind vane and the wind deflector of the utility model;

Fig. 11 is a circuit diagram of the hydraulic pump of the present invention in the first working state;

Fig. 12 is a circuit diagram of the hydraulic pump of the present invention in the second working state.

【Detailed ways】

In order to further illustrate the characteristics and advantages of the present utility model, the specific embodiment of the present utility model is now provided in conjunction with the accompanying drawings:

As shown in Figure 1, a vertical axis wind power generation device has: a vertically arranged rotating shaft 13, a wind wheel mechanism 21 installed on the rotating shaft 13, a support frame 1 for supporting the rotating shaft 13 and the wind wheel mechanism 21, The speed-increasing gear box 11 connected to the bottom of the rotating shaft 13 is connected to the generator 12 of the speed-increasing gear box 11, and it also includes an upper fixed plate 3, a middle fixed plate 4, a lower fixed plate 2, and 8 support columns 16, 8 Block wind deflector 6 and wind deflector guide 25, wherein,

The support frame 1 is fixedly installed on the ground or a building, the lower fixed plate 2 is fixedly connected to the support frame 1, the speed-increasing gear box 11 and the generator 12 are arranged under the support frame 1, and are fixedly installed on the support frame 1. on the ground or on buildings;

As shown in Figure 2, eight support columns 16 are arranged between the upper and lower fixed plates, and the support columns 16 are equiangularly arranged on a circle of equal radius centered on the rotating shaft 13;

As shown in Figure 1, the middle fixed plate 4 is arranged on the support column 16 between the upper and lower fixed plates, and the preferred solution is that the middle fixed plate 4 is arranged on the middle part of the support column 16;

The rotating shaft 13 is connected to the center of the lower fixed disk 2 through the lower disk bearing 5 arranged thereon, and is connected to the center of the upper fixed disk 3 through the upper disk bearing 8 arranged thereon, so that the stability of the rotating shaft 13 is achieved by this structure Work; the rotating shaft 13 is set through the center of the middle fixed disk 4, but it will be understood that it can also be set at the center of the middle fixed disk 4 through the middle bearing set thereon;

A rotary shaft speed switch 20 is also installed on the rotary shaft 13 .

As shown in Figure 2, 8 wind deflectors 6 are movably connected to the outer sides of the 8 support columns 16, and the 8 wind deflectors 6 are evenly distributed, and the air inlet formed by it is set against the rotation direction of the wind wheel mechanism, and Deflect the same angle in the same direction, and the two adjacent wind deflectors 6 are set at an angle of 45°; this structure enables the wind deflector 6 to concentrate the wind force into the wind wheel during the half cycle of the work of the wind wheel mechanism. Inside the mechanism, and make the wind wheel mechanism block the wind on the outside of the wind wheel mechanism during the half cycle of returning to generate air resistance, thereby greatly improving the efficiency of the wind wheel mechanism in utilizing wind energy;

As shown in Figure 3, the longitudinal axis E on the wind deflector 6 divides the wind deflector 6 into two parts e and f in the horizontal direction, and the lengths of the two parts e and f in the horizontal direction are e1 and f1 respectively , wherein, e1≤f1; the wind deflector 6 is movably connected to the support column 16 along the longitudinal axis E, wherein, part e is set close to the wind wheel mechanism, and part f is set away from the wind wheel mechanism; the purpose of this structure is mainly to The overall structure is reduced, thereby reducing costs and reducing installation workload.

As shown in Figure 1, the wind wheel mechanism 21 has two sets, upper and lower, wherein the upper wind wheel mechanism is arranged on the rotating shaft 13 between the upper and middle fixed disks, and the lower wind wheel mechanism is arranged between the lower and middle fixed disks on the rotation axis 13;

As shown in Fig. 1, Fig. 2, Fig. 4 and Fig. 8, the above-mentioned wind wheel mechanism 21 comprises: the wind wheel hub 9 sleeved on the rotating shaft 13, and 8 sets are arranged at equal angles along the circumferential direction of the wind wheel hub 9 Rectangular fan blade frame 7, and the fixed fan blade 23 and movable fan blade 24 that are arranged on the fan blade frame 7 at intervals, wherein,

The wind-receiving surface of the fixed fan blade 23 has a groove-shaped surface to increase the wind-receiving area; the wind-receiving resistance surface of the fixed fan blade has an arc-shaped surface that can reduce wind resistance;

As shown in Figure 5, the movable fan blade 24 is arranged on the fan blade frame 7, so that it is closed to do work when it is subjected to wind force, and it is opened to reduce wind resistance when it is subjected to wind resistance;

The longitudinal axis A on the above-mentioned movable fan blade 24 divides the movable fan blade into two parts a and b in the horizontal direction, and the lengths of the two parts a and b in the horizontal direction are respectively a1 and b1, wherein a1 <b1; the movable blade 24 has a longitudinal axis C on the blade frame 7 corresponding to the movable blade frame 72 of the movable blade 24, and the longitudinal axis C divides the movable blade frame 72 in the horizontal direction Divided into two parts c and d, the lengths of c and d in the horizontal direction are c1 and d1 respectively, where c1<d1; the movable blade 24 is flexibly connected to its corresponding movable blade frame along the longitudinal axis A 72 at the longitudinal axis C, wherein part a is set on the same side as the wind resistance surface of the blade frame 7, part b is set on the same side as the wind force surface of the blade frame 7, and a1>c1, b1>d1, so that This ensures that the movable fan blades can be opened by the wind;

As shown in Figure 8, the movable blade 24 is provided with several small air holes, and the effect of these small air holes is that when the movable blade 24 is facing the wind during the half cycle of the wind wheel mechanism, a certain amount of wind will pass through the small air holes, thereby Make the movable fan blade 24 form a negative pressure, which makes it more tightly attached to the fan blade frame 7;

As shown in Fig. 1, Fig. 2 and Fig. 4, in this embodiment, the wind wheel mechanism also includes an air guide tube 10 sleeved on the periphery of the wind wheel hub 9, and the function of the air guide tube 10 is to guide the incoming wind The wind in the wheel mechanism is guided to the blades outside the wind wheel, because the closer to the axis of the wind wheel mechanism, the smaller the torque, and the lower the efficiency of using wind energy;

But it will be understood that, in other embodiments, the movable fan blade can also be movably connected to the wind resistance surface of the fixed fan blade at one end (that is, it can be movably connected to the arc surface of the fixed fan blade or its edge), the other end is set through the fan blade frame, and its length in the horizontal direction is greater than the length of the corresponding movable fan frame on the fan blade frame in the horizontal direction, so as to ensure that the movable fan blade can be opened by the wind. Purpose;

As shown in FIG. 9 , the blade frame 7 is connected to the fixed blade 23 , and the inner hinge of the wind resistance surface of the fixed blade 23 is connected to the movable blade 24 .

As shown in Figure 10, it is the principle of action of different wind directions on the wind wheel mechanism under two limit states. Since the eight wind deflectors 6 are evenly installed and arranged along the outer edge of the wind turbine mechanism, the 8 wind deflectors 6 are formed. Each air inlet corresponds to eight different directions, so each air inlet is distributed at an angle of 45° to the adjacent air inlet, so that the incoming wind in any direction can only appear in two extreme air inlet states, namely The situation shown by the wind along the edge of the wind deflector (shown as E in the figure), and the situation shown by the gentle wind along the side of the adjacent wind deflector (shown as D in the figure); the wind can only be shown between E and The change between the two states of D enters the wind wheel, and the angle difference between the two wind directions of E and D is 45 degrees. The wind deflector 6 in these two states can guide more wind into the wind wheel During the working half cycle of the mechanism, the wind is blocked outside the wind deflector 6 in the returning half cycle, so that the wind wheel mechanism can not only adapt to incoming wind in any direction, but also greatly improve the efficiency of the wind wheel mechanism in utilizing wind energy.

As shown in Figure 1, the wind deflector guide device 25 is connected to the wind deflector 6, so as to control the steering of the wind deflector 6;

It should be understood that the guide device for the air deflector can be a set of guide devices that control eight air deflectors 6 at the same time, or eight sets of guide devices that control eight air deflectors 6 respectively. In this embodiment , using a set of guiding devices that simultaneously control 8 wind deflectors 6, the structure of which is as follows:

As shown in Fig. 6 and Fig. 7, the wind deflector guide device 25 is installed on the middle fixed plate 4, and it includes: 8 wind deflector guide rods 14, 8 hub guide rods 22, which rotate with the rotating shaft 13 Center guide hub 15, hub steering device and hub steering degree control device, wherein,

One end of the hub guide rod 22 is fixedly arranged at an equal angle along the circumferential direction of the guide hub 15, and the other end is movably connected with the middle part of the corresponding wind deflector guide link 14;

The two ends of the guide connecting rod 14 of the air deflector are respectively movably connected to the horizontal ends of the two air deflectors that are symmetrical about the rotation axis 13, and the ends are the two wind deflectors described above along the axis of rotation. The ends of the central equal-radius circle that are close to each other in the circumferential direction;

Based on the above, it needs to be further explained that: the guide hub 15 and the hub steering device are arranged on the middle fixed disk 4 .

Based on the above, it needs to be explained that: 8 air deflectors 6 that are symmetrical about the rotation axis 13 form four groups of air deflectors symmetrically in pairs, and each group of air deflectors interacts with each other through two air deflector guide rods 14. connected, and the guide rods 14 of the wind deflector are set up and down in pairs in pairs, and are movably connected with the corresponding hub guide rods 22 respectively, so as to form the steering support connection structure of the wind deflector;

Eight air deflectors that are symmetrical about the rotation axis are symmetrically formed in pairs to form four groups of air deflectors. Each group of air deflectors is connected to each other through two support links, and the support links are set up and down in pairs. form the wind deflector support connection structure; the wind deflector support connection structure is mainly to strengthen the connection firmness between the 8 wind deflectors; in the present embodiment, the wind deflector support connection structure (according to specific circumstances , optionally) arranged on the upper and (or) lower parts of the eight wind deflectors;

The wind deflector 6 is not a rotating part of the wind wheel mechanism, and the eight wind deflectors 6 are respectively movably connected to the outside of the eight support columns 16, that is, the wind deflector 6 rests on the very stable support column 16, and the horizontal direction The two ends of the wind deflector guide rod 14 are connected in pairs to form a whole, and the wind deflector guide rod 14 is connected to the stable guide hub 15 through the hub guide rod 22, and the guide hub 15 is connected to the stable hydraulic pressure. Above the bar 17, form a firm rotating whole with this, reach the purpose of resisting super-strong wind attack, and can effectively protect vulnerable parts such as fan blades and fan blade holders surrounded by 8 wind deflectors 6 .

The hub steering device adopts a hydraulic mechanism that is flexibly connected to the rim of the guide hub 15, and the hydraulic mechanism has two sets, which are flexibly connected to the rim of the guide hub 15 in the same direction and symmetrically;

In this embodiment, the hydraulic mechanism can move forward and backward, and it mainly includes: a hydraulic rod 17 movably connected to the rim of the guide hub 15, a hydraulic rod limit switch and a hydraulic pump 18 for driving the hydraulic rod , wherein, the hydraulic pump 18 can drive the hydraulic rod 17 to move in two directions of expansion and contraction, and the hydraulic rod 17 and the hydraulic pump 18 are fixed on the middle fixed plate 4;

But it will be understood that in other embodiments, the hydraulic mechanism can have two sets, and the two sets of hydraulic mechanisms are oppositely and symmetrically connected to the rim of the guide hub 15, so that the guide hub 15 can The purpose of being able to make positive and negative two-way movement.

The hub steering degree control device is connected to the hub steering device so as to control the steering of the hub steering device;

In this embodiment, the wheel hub steering degree control device adopts the rotating shaft speed switch 20, and the rotating shaft speed switch 20 controls the opening and closing of the wheel hub steering device according to its preset rotating shaft rated speed (that is, the preset rotation speed The upper and lower limits of the rated speed of the shaft, when the limit is exceeded, the rotating shaft speed switch 20 will be closed or opened by itself), so as to control the steering degree of the guide hub;

In this embodiment, the rotary shaft speed switch 20 is connected to the above-mentioned hydraulic pump 18, and the hydraulic pump 18 drives the hydraulic rod 17 to complete the steering action of the hub steering device;

However, it will be understood that, in other embodiments, the hub steering degree control device may also be other intelligent control devices.

For this embodiment, in order to more clearly illustrate the working process of the wind deflector guide device, a further description is given in combination with the circuit diagrams of the hydraulic pump in two working states:

As shown in Figure 11, D1 is the hydraulic pump motor, K1 is the limit switch of the hydraulic rod (set to start when the hydraulic rod reaches the maximum value), and SK1 is the speed switch of the rotating shaft (set to start when the upper limit of the rated speed is exceeded) , SD is a manual switch, wherein one end of the hydraulic pump motor D1 is connected to the power supply, and the other end is connected in series with the hydraulic rod limit switch K1 and the rotary shaft speed switch SK1, and then connected to the other end of the power supply. The manual switch SD is connected in parallel to the rotary shaft speed switch SK1. end;

When the wind speed is high and the rotating shaft speed reaches the upper limit of the rated speed, the rotating shaft speed switch SK1 is turned on, and the power supply current reaches the hydraulic pump motor D1 through the rotating shaft speed switch SK1 and the hydraulic rod limit switch K1, and returns to the other end of the power supply to form circuit, at this time, the hydraulic pump motor D1 is started, so that the hydraulic rod pushes the guide hub to turn, so that the hub guide rod drives the guide rod of the air deflector to rotate. At this time, the 8 air deflectors are driven At the same time, it rotates positively, which makes the air inlet formed between two adjacent air deflectors gradually narrow, the air intake decreases accordingly, and the rotation speed of the rotating shaft begins to decrease;

When the rotating shaft speed drops below the rated speed upper limit, the rotating shaft speed switch SK1 is disconnected, the hydraulic pump motor D1 is powered off and stops running, and the air deflector maintains the current deflection angle under the action of the hydraulic lever, that is, two adjacent The air inlet formed between the wind deflectors maintains the current opening shape, at this time, the wind wheel mechanism operates at the rated speed under the wind speed;

If there is super strong wind or the air intake is still too high, the rotational speed of the rotating shaft fails to drop below the upper limit of the rated rotational speed, and the hydraulic pump motor D1 continues to work. When the hydraulic rod reaches the limit position and touches the hydraulic rod limit switch K1, the hydraulic pressure The pump motor D1 is powered off and stops running;

As shown in Figure 7, at this time, the wind deflectors 6 are pushed to the maximum steering angle, that is, the positions of the eight wind deflectors 6 are parallel to the tangent of the wind wheel mechanism, and the air inlets formed between two adjacent wind deflectors Reach the minimum position. In this state, most of the wind is blocked outside the wind deflector, and the rotation speed of the rotating shaft will drop significantly; when designing the wind deflector, in this state between the wind deflectors Leave a certain gap and not completely close, so that the air inlet can enter a small amount of wind, so that the speed of the wind turbine mechanism will not drop sharply, so as to achieve the purpose of protecting the generator;

In other situations, the manual switch SD can be activated manually.

As shown in Figure 12, D1 is the hydraulic pump motor, K2 is the hydraulic rod limit switch (set to start when the hydraulic rod retracts to the maximum value), SK2 is the rotary shaft speed switch (set to start when the lower limit of the rated speed is lower than the rated speed) ), wherein one end of the hydraulic pump motor D1 is connected to the power supply, and the other end is connected in series with the hydraulic rod limit switch K2 and the rotating shaft speed switch SK2 respectively, and then connected to the other end of the power supply;

When the wind speed is low or the air intake volume is small, and the rotating shaft speed reaches the lower limit of the rated speed, the rotating shaft speed switch SK2 is turned on, and the power supply current reaches the hydraulic pump motor D1 through the rotating shaft speed switch SK2 and the hydraulic rod limit switch K2, and Return to the other end of the power supply to form a circuit. At this time, the hydraulic pump motor D1 is started, so that the hydraulic rod pulls the guide hub to rotate. At this time, the 8 air deflectors rotate in the opposite direction, which makes a gap between two adjacent air deflectors. The air inlet gradually expands, the air intake increases accordingly, and the rotation speed of the rotating shaft begins to increase;

When the rotating shaft speed rises above the lower limit of the rated speed, the rotating shaft speed switch SK2 is disconnected, the hydraulic pump motor D1 is powered off and stops running, and the air deflector maintains the current deflection angle under the action of the hydraulic rod, that is, two adjacent The air inlet formed between the wind deflectors maintains the current opening shape, at this time, the wind wheel mechanism operates at the rated speed under the wind speed;

If there is low-speed wind or the air intake is still insufficient, the rotation speed of the rotating shaft fails to rise above the lower limit of the rated speed, and the hydraulic pump motor D1 continues to work. When the hydraulic rod reaches the limit position and touches the hydraulic rod limit switch K2, the hydraulic pump The motor D1 is powered off and stops running. At this time, the air deflector is pushed to the minimum steering angle, that is, the air inlet formed between two adjacent air deflectors reaches the maximum position. In this state, most of the wind is concentrated Inside the wind deflector, the rotation speed of the rotating shaft will increase significantly.

Claims (10)

1. A vertical axis wind power generation device, which has: a vertically arranged rotating shaft, a wind wheel mechanism installed on the rotating shaft, a support frame for supporting the rotating shaft and the wind wheel mechanism, and a speed-increasing gearbox connected to the lower part of the rotating shaft , the generator connected to the speed-increasing gearbox is characterized in that: it also includes an upper fixed plate, a lower fixed plate, a supporting column, an air deflector and an air deflector guiding device, wherein the lower fixed plate is arranged on the support frame, and the There is 2N between the upper and lower fixed plates, and N is a natural number, wherein, 6≥N≥2, a support column, and a wind deflector is movably connected to each support column, and the rotating shaft passes through the upper column set on it. The two sets of bearings are respectively connected to the upper and lower fixed plates, the support columns are arranged at equal angles on a circle of equal radius centered on the rotating shaft, and the wind wheel mechanism is arranged on the rotating shaft between the upper and lower fixed plates Above, the wind deflector guide device is connected to the wind deflector so as to control the steering of the wind deflector. 2. The vertical axis wind power generation device according to claim 1, characterized in that it further includes a middle fixed plate, the middle fixed plate is arranged on the support column between the upper and lower fixed plates, and the wind wheel mechanism There are upper and lower sets, wherein the upper wind wheel mechanism is arranged on the rotating shaft between the upper and middle fixed disks, and the lower wind wheel mechanism is arranged on the rotating shaft between the lower and middle fixed disks. 3. The vertical axis wind power generation device according to claim 1, characterized in that: the wind deflector guide device includes 2N, N is a natural number, wherein, 6≥N≥2, a wind deflector guide connecting rod, 2N , N is a natural number, wherein, 6≥N≥2, the root hub guide rod, the guide hub with the rotating shaft as the center of rotation, the hub steering device and the hub steering degree control device, wherein, one end of the hub guide rod is along the circumference of the guide hub The direction is fixed at an equal angle, and the other end is movably connected to the middle part of the corresponding air deflector guide link. The said ends are the ends of the two above-mentioned wind deflectors that are close to each other along the direction of the equal-radius circle centered on the rotating shaft. The guide hub and the hub steering device are arranged on the fixed disk. The hub steering degree control device is connected to the hub steering device to control the action of the hub steering device. 4. The vertical axis wind power generation device according to claim 3, characterized in that: the hub steering degree control device adopts a rotating shaft speed switch, and the rotating shaft speed switch controls the hub steering according to the rotating shaft speed preset by itself. The start and stop of the device can be used to control the steering degree of the guide hub. 5. The vertical axis wind power generation device according to claim 3 or 4, characterized in that: the hub steering device adopts a hydraulic mechanism that is movably connected with the rim of the guide hub, and there are two sets of hydraulic mechanisms, the two sets The hydraulic mechanism is symmetrically and flexibly connected to the rim of the guide hub. 6. The vertical axis wind power generation device according to claim 5, wherein the hydraulic mechanism includes a hydraulic rod that is movably connected to the rim of the guide hub and a hydraulic pump that drives the hydraulic rod, and the hydraulic pump is connected to the rotating shaft The speed switch is used to control its own start and stop according to the speed of the rotating shaft. 7. The vertical axis wind power generation device according to claim 2 or 3, characterized in that the device includes an upper fixed plate, a middle fixed plate and a lower fixed plate, there are 8 supporting columns, and the wind deflector There are 8 pieces, and the wind wheel mechanism has two sets of upper and lower sets. The wind deflector guide device includes 8 wind deflector guide links and 8 hub guide rods. The guide hub and hub steering device are arranged on on the fixed plate. 8. The vertical axis wind power generation device according to claim 1, characterized in that: the wind wheel mechanism comprises: a wind wheel hub sleeved on the rotating shaft, and a plurality of rectangles arranged at equal angles along the circumferential direction of the wind wheel hub The blade frame, and the fixed blades and movable blades arranged at intervals on the blade frame, wherein, the wind-receiving surface of the fixed blade has a groove-shaped surface, and the wind-receiving surface of the fixed blade has the ability to reduce The arc surface of the wind resistance, the movable fan blade is arranged on the fixed fan blade or the fan blade frame so that it is closed to do work when it is subjected to wind force, and it is opened to reduce wind resistance when it is subjected to wind resistance. 9. The vertical axis wind power generation device according to claim 8, characterized in that: the longitudinal axis A on the movable blade divides the movable blade into two parts a and b in the horizontal direction, and the two parts a and b are in the horizontal direction. The lengths in the horizontal direction are respectively a1 and b1, wherein a1<b1; the movable fan blade has a longitudinal axis C on the movable fan blade frame corresponding to the movable fan blade on the fan blade frame, and the longitudinal axis C The frame of the movable fan blade is divided into two parts c and d in the horizontal direction, and the lengths of the two parts c and d in the horizontal direction are respectively c1 and d1, wherein c1<d1; the movable fan blade is along the longitudinal axis A The flexible connection is at the longitudinal axis C of the corresponding movable blade frame, wherein part a is set on the same side as the wind resistance surface of the blade frame, and part b is set on the same side as the wind force surface of the blade frame, and a1>c1 , b1>d1. 10. The vertical axis wind power generation device according to claim 8, characterized in that: one end of the movable blade is movably connected to the wind resistance surface of the fixed blade, and the other end is set through the blade frame, and its horizontal direction The length is greater than the length in the horizontal direction of the movable blade frame corresponding to it on the blade frame.

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