CN111271221A - Horizontal axis air transmission wind power generation device and wind power generation method thereof - Google Patents

Abstract

The invention relates to the technical field of wind power generation, and discloses a horizontal axis air transmission wind power generation device and a wind power generation method. Compared with the prior art, the method reduces the influence of randomness and instability of wind speed change, adopts a high-speed working method of driving the generator by the compressed gas, and improves the power generation quality; the wind driven generator is moved downwards to be positioned on the ground side, so that the weight of top equipment is reduced, and the wind energy utilization efficiency is improved; the speed is adjusted by adopting an air flow method, a gear transmission system is removed, the structure of the wind driven generator is simplified, and the operation and maintenance cost is reduced.

Description

Horizontal axis air transmission wind power generation device and wind power generation method thereof

Technical Field

The invention relates to the technical field of wind power generation, in particular to a horizontal axis air transmission wind power generation device and a power generation method thereof.

Background

Wind energy is an energy form formed by atmospheric motion, is a clean pollution-free energy, is rich in wind energy resources in China, and with the rapid increase of economic development on electric power demand and the requirement of sustainable development and the continuous progress of wind power generation technology, the wind power industry is rapidly developed, and the installed capacity of wind power in China is 10000KW estimated to 2020.

The wind driven generator is an energy conversion device which drives blades to rotate through wind power, and then realizes energy transmission and mechanical energy conversion into electric energy through a speed changer and a generator, so that the wind energy is converted into the electric energy. According to the structural division of wind wheels, the wind driven generator can be divided into a horizontal axis wind driven generator and a vertical axis wind driven generator. The horizontal-axis wind turbine refers to a wind turbine with blades rotating around a horizontal axis and a rotating plane perpendicular to the wind direction.

At present, a variable-pitch horizontal-axis wind turbine is widely adopted and generally comprises blades, a hub, a main shaft, a speed-increasing gear box, a high-speed shaft, a brake device, a yaw system, a tower and the like. In the traditional wind driven generator, the gearbox and the generator are positioned above the tower, so that the structure is complex and the installation difficulty is high; after the fan runs for a long time, the problems of gear abrasion and the like exist in the gearbox, and the operation and maintenance cost is high; and the fan can be started to operate only under a certain starting wind speed. And when the wind speed is lower than the starting wind speed, the fan does not work. When the wind speed is higher than the cut-out wind speed, the fan stops working, and the power generation efficiency of the fan is greatly reduced.

Disclosure of Invention

The purpose of the invention is as follows: the invention provides a horizontal axis air transmission wind power generation device, and provides an air transmission wind power generation method for a horizontal axis wind power generator, aiming at solving the problems in the prior art.

The technical scheme is as follows: the invention provides a horizontal shaft air transmission wind power generation device, which comprises a tower frame, wherein a main shaft is arranged at the top end of the tower frame, fan blades and an empennage are respectively fixed at two ends of the main shaft, the horizontal shaft air transmission wind power generation device also comprises a plurality of idler wheel devices which are arranged on the top end of the tower frame in a circular manner, a rotary table is placed in the middle of each idler wheel device and can rotate around a central shaft where the idler wheel devices which are arranged in a circular manner are arranged, a pair of main shaft supporting plates are arranged on the rotary table, the main shaft is rotationally connected to the main shaft supporting plates, a cam is arranged between the pair of main shaft supporting plates and fixedly connected to the main shaft, a cam connecting shaft is arranged in a cam groove of the cam, a dynamic connector is fixed at the other;

the output end of the air compression device is connected with an air storage device, and the output end of the air storage device is connected with the pneumatic generator.

Further, the cam is of an involute cam structure, and the pressure angle of the cam is zero.

Further, the air compression device is of a double-cylinder structure and comprises a main cylinder and an auxiliary cylinder, a piston is horizontally arranged in the main cylinder and fixedly connected with the connecting rod, an air outlet is formed in the side wall of the auxiliary cylinder and communicated with an air outlet pipe, and the air outlet pipe is the output end of the air compression device; the air outlet pipe is provided with a three-way electric valve which is communicated with the atmosphere or communicated with the air outlet pipe.

Further, the gas storage device comprises a plurality of gas storage tanks, and the plurality of gas storage tanks are connected in parallel through pipelines and then are respectively connected with the gas outlet pipe of the auxiliary cylinder and the pneumatic generator through a high-pressure gas inlet pipe and a high-pressure gas outlet pipe.

Furthermore, an air inlet one-way air electric valve is arranged on the pipeline in the air inlet direction of each air storage tank, an air outlet one-way air electric valve is arranged on the pipeline in the air outlet direction, and a pressure sensor is further arranged on each air storage tank.

The controller is electrically connected with the three-way electric valve, the pressure sensor, the air inlet one-way air electric valve and the air outlet one-way air electric valve respectively.

The invention also discloses a wind power generation method based on the horizontal axis air transmission wind power generation device, which comprises the following steps:

s1: under the action of the tail wing, the fan blades face the wind;

s2: the three-way electric valve is opened to conduct the atmosphere, so that the influence on the starting wind speed is reduced;

s3: the three-way electric valve closes the atmosphere end and opens the air outlet pipe end, so that dynamic force transmission of the cam, the main cylinder, the auxiliary cylinder, the connecting rod and the dynamic connector is realized;

s4: the controller opens the air inlet one-way air electric valve of the air storage tank meeting the air storage requirement according to the value of the pressure sensor, closes other air inlet one-way air electric valves, and compresses air into the air storage tank;

s5: the pressure sensor monitors the pressure value of the air storage tank in the S4 in real time, when the air pressure reaches the maximum allowable pressure of the air storage tank, the air inlet one-way air electric valve of the air storage tank in the S4 is closed, and the air inlet one-way air electric valve of the other air storage tank meeting the air storage requirement is opened to compress air into the air storage tank;

s6: the controller controls to open an air outlet one-way air electric valve of the air storage tank meeting the power generation requirement of the pneumatic generator to realize operation power generation;

s7: the pressure sensor monitors the pressure value of the air storage tank for generating power in S6 in real time, and when the pressure is smaller than the minimum pressure required by the pneumatic generator, the controller controls the air outlet one-way air electric valve of the air storage tank to close and opens the air outlet one-way air electric valve of the other air storage tank meeting the power generation requirement of the pneumatic generator;

s8: and circulating the steps S4-S7, and coordinately controlling the opening and closing of the air inlet one-way air electric valves and the air outlet one-way air electric valves of the plurality of air storage tanks.

Preferably, the dynamic force transmission in S3 is: the cam makes circular motion along with the main shaft, and the cam compression dynamic connector drives the connecting rod to move up and down to generate compressed gas.

Preferably, the gas storage requirements in S4 and S5 are:

(1) the pressure in the air storage tank is less than the maximum allowable pressure of the air storage tank;

(2) the corresponding air storage tank does not supply air to the pneumatic generator, namely the corresponding air outlet one-way air electric valve is closed;

(3) and when the pressure of 2 or more air storage tanks is less than the maximum allowable pressure of the air storage tanks and the air supply to the pneumatic generator is not carried out, circularly sequencing according to the preset sequence of the air storage tanks.

Preferably, the power generation requirements of the pneumatic power generators in S6 and S7 are:

(1) the pressure of the gas storage tank is greater than the minimum pressure required by the pneumatic generator for power generation;

(2) the gas storage tank does not work in a gas storage state;

(3) when 2 or more than 2 gas storage tanks meet the minimum pressure required by the power generation of the pneumatic generator and do not work in a gas storage state, the gas storage tanks are circularly sequenced according to the preset sequence of the gas storage tanks.

Has the advantages that:

1. the invention adopts the cam, the main cylinder, the connecting rod and the dynamic connector to realize dynamic force transmission, reduces the influence of randomness and instability of wind speed change, adopts a high-speed working method of driving the generator by compressed gas and improves the power generation quality.

2. The invention moves the wind driven generator down to be positioned on the ground side, thereby reducing the weight of top equipment and improving the utilization efficiency of wind energy.

3. The invention adopts the airflow method to adjust the speed, removes a gear transmission system, simplifies the structure of the wind driven generator and reduces the operation and maintenance cost.

4. The invention adopts a multi-path one-way air electric valve to control the air storage and supply of a plurality of air storage tanks, thereby ensuring the uniformity of the air supply of the pneumatic generator and the stable power generation voltage and frequency.

Drawings

FIG. 1 is a view of the installation structure of the present invention;

FIG. 2 is an enlarged view of the tower top structure of the present invention;

FIG. 3 is a schematic view of a high pressure gas storage device according to the present invention;

FIG. 4 is a schematic diagram of the electrical control principle of the present invention;

fig. 5 is a schematic view of the working principle of the air compressor of the present invention.

Wherein, 1-cam, 2-cam connecting shaft, 3-dynamic connector, 4-main shaft supporting plate, 5-cross iron, 6-fan blade, 7-connecting rod, 8-piston, 9-empennage, 10-main shaft, 11-wheel leaning device, 12-rotary table, 13-main cylinder, 14-upper air inlet pipe, 15-three-way electric valve, 16-auxiliary cylinder, 17-lower air inlet pipe, 18-air outlet pipe, 19-tower, 20-first air inlet one-way air electric valve, 21-second air inlet one-way air electric valve, 22-third air inlet one-way air electric valve, 23-fourth air inlet one-way air electric valve, 24-high pressure air inlet pipe, 25-first air outlet one-way air electric valve, 26-second air outlet one-way air electric valve, 27-a third air outlet one-way air electric valve, 28-a fourth air outlet one-way air electric valve, 29-a high-pressure air outlet pipe, 30-a pressure sensor, 31-an upper air inlet, 32-a lower air inlet, 33-a tongue, 34-a first air storage tank, 35-a second air storage tank, 36-a third air storage tank and 37-a fourth air storage tank.

Detailed Description

The invention will now be described in detail with reference to the accompanying drawings, in which reference is made to fig. 1 to 5.

The invention relates to the technical field of wind power generation, in particular to a horizontal axis air transmission wind power generation device and a power generation method thereof. The wind power generation method aims at a horizontal axis wind power generator and provides a wind power generation method for air transmission so as to effectively solve the problems in the background technology.

The horizontal shaft air transmission wind power generation device comprises a tower frame 19, wherein a plurality of cross bars 5 are horizontally arranged at the top end of the tower frame 19, the arrangement mode of the cross bars is shown in attached figures 1 and 2, a main shaft 10 is further arranged on the tower frame 19, fan blades 6 and an empennage 9 are respectively fixed at two ends of the main shaft 10, the tower frame 19 is of a tripod structure and is formed by welding angle irons, and three cross bars 5 can be arranged and fixed at the top end of the tower frame 19 through bolts.

A plurality of idler wheel devices 11 are circularly arranged on the topmost 3 transverse iron pieces 5, the number of the idler wheel devices 11 is three, each idler wheel device 11 is fixed on the transverse iron piece 5, and the three idler wheel devices 11 are all located on the circular circumference, see the attached drawing 1.

A rotary table 12 which can rotate around a central shaft where a circularly arranged idler wheel device is located is arranged in the middle of an idler wheel device 11, referring to the attached drawing 1, the rotary table 12 can rotate around an A shaft (vertical shaft), a circle is hollowed in the middle of the rotary table 12, a pair of symmetrically arranged main shaft supporting plates 4 are fixed at symmetrical positions in front of and behind the hollowed circle, a main shaft 10 is rotatably connected onto the main shaft supporting plates 4, a cam 1 is arranged between the pair of main shaft supporting plates 4, the cam 1 is of an involute cam structure, and the pressure angle of the cam is zero.

The cam 1 is fixed on the main shaft 10, cam connecting shafts 2 are arranged in cam grooves on the left side and the right side of the cam 1, a dynamic connector 3 is fixed at the other end of each cam connecting shaft 2, referring to the attached drawing 2, the dynamic connector 3 is located in a circular position hollowed in the middle of a rotating disc 12, and the cam 1 is located in the dynamic connector 3 to rotate. The bottom end of the dynamic connector 3 is connected with an air compression device through a connecting rod 7. The connecting rod 7 passes through the hollowed-out circular position between the turntables 12.

The main shaft 10 can rotate around a central axis on which the main shaft 10 is located, i.e., an axis B (horizontal axis) in fig. 1.

The wind blades 6 rotate by wind to drive the main shaft 10 to rotate, the cam 1 converts the rotary motion into linear motion, and the tail wing 9 is influenced by the wind direction to drive the main shaft 10, the wind blades 6, the cam 1, the dynamic connector 3 and the rotary disc 12 to deflect around an axis A (vertical axis), so that the stress surface of the wind blades 6 is perpendicular to the wind direction, and the maximum wind energy is obtained. When the cam 1 is driven by the fan blade 6 to rotate, the dynamic connector 3 moves up and down through the cam connecting shaft 2, so that the connecting rod 7 drives the air compression device to work.

The output end of the air compression device is connected with an air storage device, and the output end of the air storage device is connected with the pneumatic generator. After the pneumatic generator passes through the connecting rod 7, the pneumatic generator moves to the position below the tower 19, so that the pressure on the top end of the tower 19 can be relieved.

In this embodiment, the air compression device adopts a double-cylinder structure, and mainly includes a main cylinder 13 and an auxiliary cylinder 16, the main cylinder 13 and the auxiliary cylinder 16 can be fixed on a tripod below the connecting rod 7, a piston 8 is horizontally arranged in the main cylinder 13, the piston 8 is fixedly connected with the connecting rod 7, an air outlet is arranged on the side wall of the auxiliary cylinder 16, the air outlet is communicated with an air outlet pipe 18, and the air outlet pipe 18 is an output end of the air compression device. The main cylinder 13 is communicated with the auxiliary cylinder 16 through an upper air inlet pipe 14 and a lower air inlet pipe 17 respectively, an upper air inlet 31 and a lower air inlet 32 are formed in the upper end and the lower end of the inner side wall of the main cylinder 13, which is opposite to the upper air inlet pipe 14 and the lower air inlet pipe 17, respectively, see the attached drawing 5, the inner side wall of the auxiliary cylinder 16 is rotatably connected with a tongue 33, the free end of the tongue 33 can be in contact with the upper inner wall and the lower inner wall of an air outlet on the auxiliary cylinder 16 respectively, and the air outlet pipe 18 is further provided with a three-way electric.

The working principle of the air compression device is shown in the attached figure 5: in an initial state (as shown in fig. 5-a), assuming that the piston 8 is at the highest position, under the action of wind power, the fan blade 6 rotates to drive the main shaft 10 to rotate, the cam 1 rotates to drive the piston 8 to move downwards through the cam connecting shaft 2, the dynamic connector 3 and the connecting rod 7, when the angle is 90 degrees, the piston 8 moves downwards to a middle position (as shown in fig. 5-b), when the angle is 180 degrees, the piston 8 moves downwards to a lowest position (as shown in fig. 5-c), as can be seen from fig. 5-a, fig. 5-b and fig. 5-c, when the piston moves downwards, the upper air inlet 31 is opened, the lower air inlet 32 is closed, the upper air outlet pipe 33 is upward blocked, the communication between the upper air outlet pipe 14 and the air outlet pipe 18 is blocked, at this time, air enters from the upper air inlet 31, because the piston 8 moves downwards, the lower part of air in the main cylinder 13 is compressed, enters the auxiliary, the wind blade 6 continues to rotate, the piston 8 moves upwards, as shown in fig. 5-d, the upper air inlet 31 is closed, the lower air inlet 32 is opened, the tongue 33 moves downwards, the communication between the air at the air outlet of the auxiliary air cylinder 16 and the lower air outlet pipe 17 is blocked, at this time, the air enters from the lower air inlet 32, as the piston 8 moves upwards, the upper air in the main air cylinder 13 is compressed, enters the auxiliary air cylinder 16 through the upper air outlet pipe 17, and outputs high-pressure air from the air outlet, through the analysis of fig. 4, the working principle of the air compression device is as follows: the fan blade 6 rotates under the action of wind to drive the main shaft 10 to rotate, the cam 1 arranged on the main shaft 10 rotates along with the main shaft 10, the piston 8 is driven to move up and down through the cam 1, the dynamic connector 3 and the connecting rod 7, air in the main cylinder 13 is compressed, continuous high-pressure gas output is obtained at the air outlet of the auxiliary cylinder 16, and the air compression function is completed.

The gas storage device in this embodiment is provided with a plurality of gas storage tanks, and the plurality of gas storage tanks are connected in parallel through pipelines and then are respectively connected with the gas outlet pipe 16 of the auxiliary cylinder and the pneumatic generator through the high-pressure gas inlet pipe 24 and the high-pressure gas outlet pipe 29.

In the present embodiment, 4 air tanks are used, but the scope of protection of the present invention is not limited to 4 air tanks, and the number of air tanks may be set according to actual needs on site. The arrangement of the 4 air tanks is shown in figure 3 and is respectively marked as a first air tank 34, a second air tank 35, a third air tank 36 and a fourth air tank 37.

An air inlet one-way air electric valve is arranged on the pipeline in the air inlet direction of each air storage tank, an air outlet one-way air electric valve is arranged on the pipeline in the air outlet direction, and a pressure sensor 30 with a display screen is further arranged on each air storage tank. The first air inlet one-way air electric valve 20 and the first air outlet one-way air electric valve 25 are arranged on the air inlet and outlet pipeline of the first air storage tank 34, and so on.

The present invention further comprises a controller electrically connected to the three-way electric valve 15, the pressure sensor 30, the air inlet one-way air electric valve and the air outlet one-way air electric valve on the air outlet pipe 18 for controlling the opening and closing of each electric valve according to the pressure sensor 30.

The electric control principle of the invention is shown in figure 4, a touch screen is used for controlling circuit parameter display and switch control, the gas pressure in the first gas storage tank 34 to the fourth gas storage tank 37 can be displayed, the working states of the electric valves YM1, YM2 … and YM9 can be manually controlled, and the automatic action conditions (pressure conditions) and the action sequence of the electric valves YM1, YM2 … and YM9 can be set. The electrically operated valves YM1, YM2 …, YM9 respectively represent: YM1 through YM8 refer to 4 inlet unidirectional air motor valves and 4 outlet unidirectional air motor valves, and YM9 refers to three-way motor valve 15. The touch-sensitive screen links to each other with the controller, and the touch-sensitive screen adopts siemens 7 cun screens, the model: 6AV6648, the controller adopts Siemens S7-300, the model is: SIMATICS 300. PTX0, PTX1, PTX2 and PTX3 are pressure sensors on each air storage tank, are respectively connected with a first air storage tank 34, a second air storage tank 35, a third air storage tank 36 and a fourth air storage tank 37, are used for detecting the air pressure in the air storage tanks and outputting 0-20mA analog quantity, output ends of the PTX are respectively connected with an input end of an analog-to-digital conversion module SM331, SM331 outputs digital quantity, and are connected with a controller, pressure values on PTX0, PTX1, PTX2 and PTX3 are sequentially read and stored in the controller under the control of the controller, output ends of the controller Q0.0, Q0.1, Q0.2 and Q0.3 are respectively connected with YM1, YM2, YM3 and YM4, air inlet states of the air storage tanks are controlled under the action of the controller, YM5, YM6, YM7 and YM8 are air outlet unidirectional air, are arranged between the air storage tanks and a high-pressure air outlet pipe 29, under the action of the controller, control three-way electric valve Q1, Q38 is connected with an electric valve 3915, and is started up at the, when the fan blades 6 rotate normally, the three-way electric valve 15 closes the air exhaust and opens the air outlet pipe 18.

In order to describe the wind power generation method in more detail, 4 pieces of 10m are selected³The maximum allowable pressure of the air storage tank is 1MPa, the diameter of the compressed air inlet is phi 100, and the minimum pressure required by the pneumatic generator for generating electricity is 0.5 MPa. High-pressure compressed air generated by the compressed air device is connected into a high-pressure air inlet pipe 24 through an air outlet pipe 18 and is respectively connected with 4 air storage tanks through 4 air inlet one-way air electric valves, only one of the 4 air inlet one-way air electric valves is communicated at each time, and the other three air inlet one-way air electric valves are closed.

4 air inlet one-way air electric valve conduction selection principles: (1) the pressure of the gas storage tank is less than the maximum allowable pressure and is 1 MPa; (2) the air storage tank does not supply air to the generator (the corresponding air outlet one-way air electric valve is closed); (3) when the pressure of 2 or more air storage tanks is less than the maximum allowable pressure of 1Mpa and no air is supplied to the generator, the priority is given according to the sequence of the first air storage tank, the second air storage tank, the third air storage tank and the fourth air storage tank.

Compressed air stored in the air storage tank is used for supplying air to the generator and is controlled by 4 air outlet one-way air electric valves, the 4 air outlet one-way air electric valves are respectively connected with 4 air storage tanks, the other end of the air storage tank is connected with a high-pressure air outlet pipe 29, and an air outlet of the high-pressure air outlet pipe 29 is an output end of the air storage device and is connected with the aerodynamic generator. Only 1 of 4 one-way air motorised valves of giving vent to anger is opened at every turn, and other three are closed, opening condition: (1) the pressure of the gas storage tank is 0.5 Mpa greater than the minimum pressure required by the pneumatic generator for generating electricity; (2) the gas storage tank does not work in a gas storage state; (3) when 2 or more than 2 air storage tanks simultaneously meet the two conditions, the priority is given to the first air storage tank, the second air storage tank, the third air storage tank and the fourth air storage tank.

The invention relates to a horizontal axis air transmission wind power generation method, which comprises the following steps:

1. under the action of the tail wing 9, the wind of the fan blades 6 is ensured, and when the fan blades 6 face the wind, the three-way electric valve 15 is opened to conduct to the atmosphere and exhaust outwards, so that the influence on the starting wind speed is reduced.

2. When the rotating speed of the main shaft 10 reaches a set value, the three-way electric valve 15 is closed to the atmosphere end, the air outlet pipe 18 is opened, the cam 1 makes circular motion along with the main shaft 13, the cam 12 drives the dynamic connector 3 to move up and down, the connecting rod 7 is driven to move up and down, and compressed air is generated.

3. And (3) opening the air storage tank with the minimum pressure value which is lower than the maximum allowable pressure set by the controller according to the pressure value in each air storage tank, opening the air inlet one-way air electric valve of the air storage tank when the air outlet one-way air electric valve of the air storage tank is in a closed state, closing other air inlet one-way air electric valves, and compressing the air into the air storage tank, wherein if the pressure value in the first air storage tank 34 meets the requirement, the compressed air is stored into the first air storage tank 34 through the air outlet pipe 18 and the high-pressure air.

4. The pressure sensor 30 in the first air tank 34 detects the pressure value in the first air tank 34 in real time, when the air pressure reaches the maximum allowable air tank pressure, the electric valve for air intake one-way air of the first air tank 34 is closed, and the electric valve for air intake one-way air of another air tank meeting the air storage requirement is opened to compress air into the air tank, assuming that the second air tank 35 meets the requirement.

5. After the first air storage tank 34 closes the first air inlet one-way air electric valve 20, the first air outlet one-way air electric valve 25 corresponding to the first air storage tank 34 is opened, and the air outlet one-way air electric valves of other air storage tanks are closed. The first air reservoir 34 supplies air to the air-powered generator, which operates to generate electricity.

6. After the second air tank 35 stores air, when the air pressure reaches the maximum allowable air tank pressure, the second air inlet one-way air electric valve 21 of the second air tank 35 is closed, and then the other air inlet one-way air electric valve of the air tank meeting the air storage requirement is opened. In the process of storing air in the second air tank 35, the first air tank 34 is in the power generation state, after the first air tank 34 generates power, the pressure sensor 30 on the first air tank 34 monitors the pressure value in the first air tank 34 in real time, and when the pressure of the first air tank is smaller than the minimum pressure required by the pneumatic generator, the controller controls the first air outlet one-way air electric valve 25 of the first air tank 34 to close and open the air outlet one-way air electric valve of another air tank meeting the power generation requirement of the pneumatic generator (the number of the specifically met air tank can be determined according to the value of the pressure sensor on each air tank and whether the number is in the air storage state).

7. Therefore, after the second air tank 35 finishes storing air, the third one-way air electric valve 22 of the third air tank 36 is opened to store air, after the first air tank 34 supplies air to the pneumatic generator to generate power, the second air outlet one-way air electric valve 26 of the second air tank 35 is opened (at this time, the second air tank 35 is in a state of completing storing air), the air in the second air tank 35 is used to supply air to generate power, and so on, the third air tank and the fourth air tank below the second air tank are used to supply air to generate power, and then the air is recycled to the first air tank to supply air to generate power.

8. The controller collects the air pressure values in the 4 air storage tanks in real time, and coordinates and controls the opening and closing of the 4 air inlet and 4 air outlet one-way air electric valves, so that the input air pressure of the pneumatic generator is stabilized in a certain range, and the output voltage can be continuously kept stable.

The above embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (10)

1. A horizontal shaft air transmission wind power generation device comprises a tower frame, wherein a main shaft (10) is arranged at the top end of the tower frame (19), fan blades (6) and a tail wing (9) are respectively fixed at two ends of the main shaft (10), the horizontal shaft air transmission wind power generation device is characterized by further comprising a plurality of idler wheel devices (11) which are arranged on the top end of the tower frame (19) in a circular mode, a turntable (12) is placed in the middle of each idler wheel device (11) and can rotate around a central shaft where the idler wheel devices (11) which are arranged in the circular mode are located, a pair of main shaft supporting plates (4) are arranged on the turntable (12), the main shaft (10) is rotatably connected to the main shaft supporting plates (4), a cam (1) is arranged between the pair of main shaft supporting plates (4), the cam (1) is fixedly connected to the main shaft (10), a cam connecting shaft (2) is arranged in a cam groove of the cam (, the bottom end of the dynamic connector (3) is connected with an air compression device through a connecting rod (7);

the output end of the air compression device is connected with an air storage device, and the output end of the air storage device is connected with the pneumatic generator.

2. A horizontal axis air-conveying wind power plant according to claim 1, characterized in that the cam (1) is of involute cam construction with zero pressure angle.

3. The horizontal-axis air-conveying wind power generation device according to claim 1, wherein the air compression device is of a double-cylinder structure and comprises a main cylinder (13) and an auxiliary cylinder (16), a piston (8) is horizontally arranged in the main cylinder (13), the piston (8) is fixedly connected with the connecting rod (7), an air outlet is formed in the side wall of the auxiliary cylinder (16), the air outlet is communicated with an air outlet pipe (18), and the air outlet pipe (18) is an output end of the air compression device; the air cylinder is characterized in that the main cylinder (13) is communicated with the auxiliary cylinder (16) through an upper air inlet pipe (14) and a lower air inlet pipe (17), the upper end and the lower end of the side wall of the main cylinder (13) are respectively provided with an upper air inlet (31) and a lower air inlet (32), the inner side wall of the auxiliary cylinder (16) is rotatably connected with a tongue (33), the free end of the tongue (33) can be respectively contacted with the upper inner wall and the lower inner wall of an air outlet of the side wall of the auxiliary cylinder (16), and the air outlet pipe (18) is further provided with a three-way electric valve (15) which is communicated with the atmosphere or the.

4. The wind power generation device with horizontal axis gas transmission according to claim 3, wherein the gas storage device comprises a plurality of gas storage tanks, and the plurality of gas storage tanks are connected in parallel through pipelines and then are respectively connected with the gas outlet pipe (18) and the pneumatic generator through a high-pressure gas inlet pipe (24) and a high-pressure gas outlet pipe (29).

5. The wind power generation device with horizontal axis air transmission according to claim 4, wherein each air storage tank is provided with an air inlet one-way air electric valve on the pipeline in the air inlet direction, an air outlet one-way air electric valve on the pipeline in the air outlet direction, and a pressure sensor (30) on each air storage tank.

6. The horizontal axis air transfer wind power plant of claim 5, further comprising a controller electrically connected to the three-way electric valve (15), the pressure sensor (30), the inlet one-way air electric valve, and the outlet one-way air electric valve, respectively.

7. A method for generating wind power based on a horizontal axis wind turbine according to claims 1 to 6, comprising the steps of:

s1: under the action of the tail wing (9), the fan blades (6) face the wind;

s2: the three-way electric valve (15) is opened to conduct the atmosphere, so that the influence on the starting wind speed is reduced;

s3: the three-way electric valve (15) is closed to the atmosphere end and opened to the air outlet pipe (18) end, so that the dynamic force transmission of the cam (1), the connecting rod (7) and the dynamic connector (3) is realized;

s4: the controller opens the air inlet one-way air electric valve of the air storage tank meeting the air storage requirement according to the value of the pressure sensor (30), closes other air inlet one-way air electric valves, and compresses air into the air storage tank;

s5: the pressure sensor (30) monitors the pressure value of the air storage tank in the S4 in real time, when the air pressure reaches the maximum allowable pressure of the air storage tank, the air inlet one-way air electric valve of the air storage tank in the S4 is closed, and the air inlet one-way air electric valve of the other air storage tank meeting the air storage requirement is opened to compress air into the air storage tank;

s6: the controller controls to open an air outlet one-way air electric valve of the air storage tank meeting the power generation requirement of the pneumatic generator to realize operation power generation;

s7: the pressure sensor (30) monitors the pressure value of the air storage tank for generating power in S6 in real time, and when the pressure is smaller than the minimum pressure required by the pneumatic generator, the controller controls the air outlet one-way air electric valve of the air storage tank to close and opens the air outlet one-way air electric valve of the other air storage tank meeting the power generation requirement of the pneumatic generator;

s8: and circulating the steps S4-S7, and coordinately controlling the opening and closing of the air inlet one-way air electric valves and the air outlet one-way air electric valves of the plurality of air storage tanks.

8. The wind power generation method of claim 7, wherein the dynamic force transmission in S3 is: the cam (1) moves circularly along with the main shaft (10), and the cam (1) compresses the dynamic connector (3) to drive the connecting rod (7) to move up and down to generate compressed gas.

9. The wind power generation method of claim 7, wherein the gas storage requirements in S4 and S5 are:

(1) the pressure in the air storage tank is less than the maximum allowable pressure of the air storage tank;

(2) the corresponding air storage tank does not supply air to the pneumatic generator, namely the corresponding air outlet one-way air electric valve is closed;

(3) and when the pressure of 2 or more air storage tanks is less than the maximum allowable pressure of the air storage tanks and the air supply to the pneumatic generator is not carried out, circularly sequencing according to the preset sequence of the air storage tanks.

10. The wind power generation method of claim 7, wherein the power generation requirements of the pneumatic power generator in S6 and S7 are:

(1) the pressure of the gas storage tank is greater than the minimum pressure required by the pneumatic generator for power generation;

(2) the gas storage tank does not work in a gas storage state;

(3) when 2 or more than 2 gas storage tanks meet the minimum pressure required by the power generation of the pneumatic generator and do not work in a gas storage state, the gas storage tanks are circularly sequenced according to the preset sequence of the gas storage tanks.

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