A horizontal axis gas transmission wind power generation device and wind power generation method thereof

Abstract

The present 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. The present invention adopts a cam and a double cylinder structure and a connecting rod to realize dynamic force transmission, adopts a three-way electric valve to reduce the wind speed requirement, and adopts a multi-way one-way air electric valve control to ensure that the air supply to the air-driven generator is uniform, and the power generation voltage and frequency are stable. Compared with the prior art, the present invention reduces the randomness and instability of wind speed changes, adopts a high-speed working method of compressed gas to improve the power generation quality; moves the wind turbine generator downward to make it on the ground side, reduces the weight of the top equipment, and improves the efficiency of wind energy utilization; adopts an airflow method to adjust the speed, removes the gear transmission system, simplifies the structure of the wind turbine generator and reduces its operation and maintenance costs.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and in particular to a horizontal axis gas transmission wind power generation device and a power generation method thereof. Background Art

[0002] Wind energy is a form of energy formed by atmospheric movement. It is a clean and pollution-free energy. my country is very rich in wind energy resources. With the rapid growth of economic development demand for electricity and the requirements for sustainable development, as well as the continuous advancement of wind power generation technology, the wind power industry has developed rapidly. It is estimated that by 2020, my country's wind power installed capacity will be 10,000KW.

[0003] A wind turbine is an energy conversion device that uses wind to drive the blades to rotate, and then uses a transmission and generator to achieve energy transmission and mechanical energy conversion into electrical energy, thereby converting wind energy into electrical energy. According to the structure of the wind wheel, wind turbines can be divided into two types: horizontal axis wind turbines and vertical axis wind turbines. Among them, a horizontal axis wind turbine refers to a wind turbine whose blades rotate around a horizontal axis and the rotation plane is perpendicular to the wind direction.

[0004] At present, variable pitch horizontal axis wind turbines are widely used, which are generally composed of blades, hubs, main shafts, speed increasing gearboxes, high-speed shafts, brake devices, yaw systems, towers and other components. In traditional wind turbines, the gearbox and generator are located above the tower, with a complex structure and difficult installation. After the wind turbine has been running for a long time, there are problems such as gear wear inside the gearbox, and the operation and maintenance cost is high. In addition, the wind turbine can only start running at a certain starting wind speed. Below the starting wind speed, the wind turbine does not work. Above the cut-out wind speed, the wind turbine also stops working, greatly reducing the power generation efficiency of the wind turbine. Summary of the invention

[0005] Purpose of the invention: In view of the problems existing in the prior art, the present invention provides a horizontal axis air transmission wind power generation device, and for the horizontal axis wind turbine, provides an air transmission wind power generation method to effectively solve the problems in the background technology.

[0006] Technical solution: The present invention provides a horizontal axis air transmission wind power generation device, including a tower, a main shaft is arranged at the top of the tower, and wind blades and tail wings are fixed at both ends of the main shaft respectively, and also includes a plurality of circular wheel devices arranged on the top of the tower, a turntable is placed in the middle of the wheel device, which can rotate around the central axis of the circular wheel device, a pair of main shaft support plates are arranged on the turntable, the main shaft is rotatably connected to the main shaft support plates, a cam is arranged between the pair of main shaft support plates, the cam is fixedly connected to the main shaft, a cam connecting shaft is arranged in the cam groove of the cam, a dynamic connector is fixed to the other end of the cam connecting shaft, and the bottom end of the dynamic connector is connected to an air compression device through a connecting rod;

[0007] The output end of the air compression device is connected to an air storage device, and the output end of the air storage device is connected to a pneumatic generator.

[0008] Furthermore, the cam is an involute cam structure, and its pressure angle is zero.

[0009] Furthermore, the air compression device is a dual-cylinder structure, which includes a main cylinder and a secondary cylinder. A piston is horizontally arranged in the main cylinder, and the piston is fixedly connected to the connecting rod. An air outlet is provided on the side wall of the secondary cylinder, and the air outlet is connected to an air outlet pipe, and the air outlet pipe is the output end of the air compression device; the main cylinder and the secondary cylinder are connected through an upper air inlet pipe and a lower air inlet pipe respectively, and an upper air inlet and a lower air inlet are respectively provided at the upper end and the lower end of the side wall of the main cylinder, and a tongue is rotatably connected to the inner side wall of the secondary cylinder, and the free end of the tongue can contact the upper and lower inner walls of the air outlet of the side wall of the secondary cylinder respectively, and a three-way electric valve is also provided on the air outlet pipe, which is connected to the atmosphere or to the air outlet pipe.

[0010] Furthermore, the gas storage device includes a plurality of gas storage tanks, which are connected in parallel through pipelines and are respectively connected to the auxiliary cylinder air outlet pipe and the pneumatic generator through a high-pressure air inlet pipe and a high-pressure air outlet pipe.

[0011] Furthermore, an air inlet one-way electric air valve is provided on the air inlet direction pipeline of each air storage tank, an air outlet one-way electric air valve is provided on the air outlet direction pipeline, and a pressure sensor is also provided on each air storage tank.

[0012] Furthermore, it also includes a controller, which is electrically connected to the three-way electric valve, the pressure sensor, the intake one-way air electric valve and the exhaust one-way air electric valve respectively.

[0013] The present invention also discloses a wind power generation method based on the above-mentioned horizontal axis gas transmission wind power generation device, comprising the following steps:

[0014] S1: Under the action of the tail wing, the blades are facing the wind;

[0015] S2: Open the three-way electric valve to conduct to the atmosphere to reduce the impact on the starting wind speed;

[0016] S3: The three-way electric valve is closed to the atmosphere end and opened to the outlet pipe end, realizing dynamic force transmission of the cam, main cylinder, auxiliary cylinder, connecting rod and dynamic connector;

[0017] S4: The controller opens the inlet one-way air electric valve of the gas storage tank that meets the gas storage requirements according to the value of the pressure sensor, and closes other inlet one-way air electric valves to compress gas into the gas storage tank;

[0018] S5: The pressure sensor monitors the pressure value of the gas storage tank in S4 in real time. When the air pressure reaches the maximum allowable pressure of the gas storage tank, the air intake one-way air electric valve of the gas storage tank in S4 is closed, and the air intake one-way air electric valve of another gas storage tank that meets the gas storage requirements is opened to compress the gas to the gas storage tank;

[0019] S6: The controller controls the opening of the one-way air electric valve of the gas storage tank that meets the power generation requirements of the pneumatic generator to realize power generation;

[0020] S7: The pressure sensor monitors the pressure value of the gas tank used for power generation in S6 in real time. When the pressure is lower than the minimum pressure required by the pneumatic generator, the controller controls the one-way air electric valve of the gas tank to close and opens the one-way air electric valve of another gas tank that meets the power generation requirements of the pneumatic generator.

[0021] S8: looping steps S4-S7, coordinating and 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 multiple air storage tanks.

[0022] Preferably, the dynamic force transmission in S3 is as follows: the cam moves in a circular motion along with the main shaft, and the cam compresses the dynamic connector to drive the connecting rod to move up and down to generate compressed gas.

[0023] Preferably, the gas storage requirements in S4 and S5 are:

[0024] (1) The pressure in the gas tank is lower than the maximum allowable pressure of the gas tank;

[0025] (2) The corresponding air storage tank does not supply air to the pneumatic generator, that is, the corresponding one-way air electric valve is closed;

[0026] (3) When the pressure of two or more gas tanks is lower than the maximum allowable pressure of the gas tanks and there is no gas supply to the pneumatic generator, the gas tanks are cyclically sorted in the pre-set order.

[0027] Preferably, the power generation requirements of the pneumatic generators in S6 and S7 are:

[0028] (1) The pressure in the gas tank is greater than the minimum pressure required for the pneumatic generator to generate electricity;

[0029] (2) The gas tank is not working in the gas storage state;

[0030] (3) When there are two or more gas storage tanks that meet the minimum pressure required for the pneumatic generator to generate electricity and the gas storage tanks are not working in the gas storage state, the gas storage tanks are arranged in a cyclic order according to the pre-set order.

[0031] Beneficial Effects

[0032] 1. The present invention adopts cam and main cylinder, connecting rod and dynamic connector to realize dynamic force transmission, reduce the randomness and instability of wind speed change, adopts compressed gas to drive the generator to work at high speed, and improves the power generation quality.

[0033] 2. The present invention moves the wind turbine generator downward to be located on the ground side, thereby reducing the weight of the top equipment and improving the efficiency of wind energy utilization.

[0034] 3. The present invention adopts the airflow method to adjust the speed, removes the gear transmission system, simplifies the structure of the wind turbine and reduces its operation and maintenance costs.

[0035] 4. The present invention adopts a multi-way one-way air electric valve to control the gas storage and supply of multiple gas tanks, ensuring that the gas volume of the air-driven generator is uniform and the power generation voltage and frequency are stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is the installation structure diagram of the present invention;

[0037] Figure 2 This is an enlarged view of the top structure of the tower of the present invention;

[0038] Figure 3 It is a schematic diagram of a high-pressure gas storage device of the present invention;

[0039] Figure 4 It is a schematic diagram of the electrical control principle of the present invention;

[0040] Figure 5 It is a schematic diagram of the working principle of the air compression device of the present invention.

[0041] Among them, 1-cam, 2-cam connecting shaft, 3-dynamic connector, 4-spindle support plate, 5-cross iron, 6-fan blade, 7-connecting rod, 8-piston, 9-tail wing, 10-spindle, 11-wheel device, 12-turntable, 13-main cylinder, 14-upper intake pipe, 15-three-way electric valve, 16-auxiliary cylinder, 17-lower intake pipe, 18-exhaust pipe, 19-tower, 20-first intake one-way air electric valve, 21-second intake one-way air electric valve, 22-third intake one-way air electric valve -air electric valve, 23-fourth air intake one-way air electric valve, 24-high-pressure air intake pipe, 25-first air outlet one-way air electric valve, 26-second air outlet one-way air electric valve, 27-third air outlet one-way air electric valve, 28-fourth air outlet one-way air electric valve, 29-high-pressure air outlet pipe, 30-pressure sensor, 31-upper air inlet, 32-lower air inlet, 33-tongue, 34-first air tank, 35-second air tank, 36-third air tank, 37-fourth air tank. DETAILED DESCRIPTION

[0042] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1 To Attachment Figure 5 .

[0043] The present invention relates to the field of wind power generation technology, and in particular to a horizontal axis air transmission wind power generation device and a power generation method thereof. The purpose is to provide a wind power generation method with air transmission for a horizontal axis wind turbine generator, so as to effectively solve the problems in the background technology.

[0044] The horizontal axis air transmission wind power generation device of the present invention comprises a tower 19, and a plurality of horizontal irons 5 are horizontally arranged at the top of the tower 19. The arrangement of the plurality of horizontal irons is shown in the attached Figure 1 With attached Figure 2 The tower 19 is also provided with a main shaft 10, and the two ends of the main shaft 10 are respectively fixed with a fan blade 6 and a tail wing 9. In this embodiment, the tower 19 is a tripod structure, which is welded by angle irons. Three cross irons 5 can be provided and fixed to the top of the tower 19 with bolts.

[0045] A plurality of wheel devices 11 are arranged in a circular shape on the top three horizontal irons 5. Three wheel devices 11 are arranged. Each wheel device 11 is fixed on the horizontal iron 5. The three wheel devices 11 are all located on the circumference of the circle. Figure 1 .

[0046] A turntable 12 is placed in the middle of the wheel device 11 and can rotate around the central axis of the wheel device arranged in a circular shape. Figure 1 The turntable 12 can rotate around the A axis (vertical axis). A circle is hollowed out in the middle of the turntable 12. A pair of symmetrically arranged spindle support plates 4 are fixed at the front and rear symmetrical positions of the hollowed out circle. The spindle 10 is rotatably connected to the spindle support plates 4. A cam 1 is arranged between the pair of spindle support plates 4. The cam 1 is an involute cam structure, and its pressure angle is zero.

[0047] The cam 1 is fixed on the main shaft 10. Cam connecting shafts 2 are arranged in the cam grooves on the left and right sides of the cam 1. A dynamic connector 3 is fixed on the other end of the cam connecting shaft 2. Figure 2 The dynamic connector 3 is located in a circular position hollowed out in the middle of the rotating disk 12, and the cam 1 is located in the dynamic connector 3 and rotates. The bottom end of the dynamic connector 3 is connected to an air compression device through a connecting rod 7. The connecting rod 7 passes through the circular position hollowed out between the rotating disks 12.

[0048] The main shaft 10 can rotate around the central axis of the main shaft 10, that is, Figure 1 Rotation about the B axis (horizontal axis).

[0049] The fan blade 6 rotates under the wind, driving the main shaft 10 to rotate. The cam 1 converts the rotational motion into linear motion. The tail wing 9 is affected by the wind direction and drives the main shaft 10, the fan blade 6, the cam 1, the dynamic connector 3, and the turntable 12 to deflect around the A axis (vertical axis) so that the force-bearing surface of the fan blade 6 is perpendicular to the wind direction to obtain the maximum wind energy. When the cam 1 rotates driven by the fan blade 6, the dynamic connector 3 moves up and down through the cam connection shaft 2, thereby driving the air compression device to work through the connecting rod 7.

[0050] The output end of the air compressor is connected to an air storage device, and the output end of the air storage device is connected to an air generator. The air generator moves to the bottom of the tower 19 after passing through the connecting rod 7, so that the pressure on the top of the tower 19 can be reduced.

[0051] In this embodiment, the air compression device adopts a double cylinder structure, mainly including a main cylinder 13 and a sub-cylinder 16. The main cylinder 13 and the sub-cylinder 16 can be fixed on a tripod below the connecting rod 7. A piston 8 is horizontally arranged in the main cylinder 13, and the piston 8 is fixedly connected to the connecting rod 7. An air outlet is arranged on the side wall of the sub-cylinder 16, and the air outlet is connected to the air outlet pipe 18. The air outlet pipe 18 is the output end of the air compression device. The main cylinder 13 and the sub-cylinder 16 are connected through the upper air inlet pipe 14 and the lower air inlet pipe 17 respectively. The upper end and the lower end of the inner wall of the main cylinder 13 opposite to the upper air inlet pipe 14 and the lower air inlet pipe 17 are respectively provided with an upper air inlet 31 and a lower air inlet 32, see the attached Figure 5 A tongue 33 is rotatably connected to the inner wall of the auxiliary cylinder 16, and the free end of the tongue 33 can contact the upper and lower inner walls of the outlet on the auxiliary cylinder 16 respectively. A three-way electric valve 15 is also provided on the outlet pipe 18, which is connected to the atmosphere or the outlet pipe 18.

[0052] The working principle of the air compression device is shown in the attached Figure 5 :Initial state (such as Figure 5 -a), assuming that the piston 8 is at the highest position, under the action of wind, the fan blade 6 rotates, driving the main shaft 10 to rotate, the cam 1 rotates, and the piston 8 moves downward through the cam connecting shaft 2, the dynamic connector 3, and the connecting rod 7. When 90°, the piston 8 moves downward to the middle position (such as Figure 5 -b), 180°, the piston 8 moves downward to the lowest position (such as Figure 5 -c), from Figure 5 -a, Figure 5 -b, Figure 5-c It can be seen that when the piston moves downward, the upper air inlet 31 opens, the lower air inlet 32 ​​closes, and the tongue 33 moves upward, blocking the air connection between the upper air inlet pipe 14 and the air outlet pipe 18. At this time, air enters from the upper air inlet 31. As the piston 8 moves downward, the lower part of the air in the main cylinder 13 is compressed, enters the auxiliary cylinder 16 through the lower air inlet pipe 17, and outputs high-pressure air from the air outlet of the auxiliary cylinder 16. The fan blade 6 continues to rotate, and the piston 8 moves upward. Figure 5 -d, the upper air inlet 31 is closed, the lower air inlet 32 ​​is opened, and the tongue 33 is downward, blocking the air connection between the lower air inlet pipe 17 and the air outlet of the auxiliary cylinder 16. At this time, air enters from the lower air inlet 32. As the piston 8 moves upward, the upper part of the air in the main cylinder 13 is compressed, enters the auxiliary cylinder 16 through the upper air inlet pipe 14, and outputs high-pressure air from the air outlet. Figure 4 Analysis shows that the working principle of the air compression device is: the fan blades 6 rotate under the action of wind, driving the main shaft 10 to rotate, and the cam 1 installed on the main shaft 10 rotates together with the main shaft 10. The piston 8 is driven up and down through the cam 1, the dynamic connector 3, and the connecting rod 7 to compress the air in the main cylinder 13, and obtain continuous high-pressure gas output at the outlet of the auxiliary cylinder 16 to complete the air compression function.

[0053] The gas storage device in this embodiment is provided with a plurality of gas storage tanks, which are connected in parallel through pipelines and are respectively connected to the gas outlet pipe 18 and the pneumatic generator through the high-pressure gas inlet pipe 24 and the high-pressure gas outlet pipe 29.

[0054] In this embodiment, four gas storage tanks are used, but the scope of protection of the present invention is not limited to four gas storage tanks, and the number of gas storage tanks can be set according to the actual needs of the site. Figure 3 , respectively recorded as the first gas storage tank 34, the second gas storage tank 35, the third gas storage tank 36, and the fourth gas storage tank 37.

[0055] Each gas storage tank is provided with an inlet one-way air electric valve on the inlet direction of the pipeline, and an outlet one-way air electric valve on the outlet direction of the pipeline. Each gas storage tank is also provided with a pressure sensor 30 with a display screen. The first inlet one-way air electric valve 20 and the first outlet one-way air electric valve 25 are provided on the inlet and outlet pipelines of the first gas storage tank 34, and so on.

[0056] The present invention also includes a controller, which can be electrically connected to the three-way electric valve 15, the pressure sensor 30, the intake one-way air electric valve and the exhaust one-way air electric valve on the outlet pipe 18 to control the switching of each electric valve according to the pressure sensor 30.

[0057] The electrical control principle of the present invention is shown in the attached Figure 4, using the touch screen for control circuit parameter display and switch control, it can display the gas pressure in the first gas storage tank 34 to the fourth gas storage tank 37, can manually control the working state of the electric valves YM1, YM2...YM9, and can also set the conditions (pressure conditions) and action sequence of the electric valves YM1, YM2...YM9 for automatic action. The electric valves YM1, YM2...YM9 respectively represent: YM1 to YM8 refer to 4 inlet one-way air electric valves and 4 outlet one-way air electric valves, and YM9 represents a three-way electric valve 15. The touch screen is connected to the controller, the touch screen adopts Siemens 7-inch screen, model: 6AV6648, and the controller adopts Siemens S7-300, model: SIMATICS300. PTX0, PTX1, PTX2, and PTX3 are pressure sensors on each gas tank, which are connected to the first gas tank 34, the second gas tank 35, the third gas tank 36, and the fourth gas tank 37, respectively, to detect the gas pressure in the gas tank, and the output is a 0-20mA analog quantity. The output ends are connected to the input ends of the analog-to-digital conversion module SM331, and the output of SM331 is a digital quantity, which is connected to the controller. Under the control of the controller, the pressure values ​​on PTX0, PTX1, PTX2, and PTX3 are sequentially read and stored in the controller. The controller output ends Q0.0, Q0.1, Q0.2 and Q0.3 are connected to YM1, YM2, YM3, and YM4 respectively, and control the air intake state of the air tank under the action of the controller. YM5, YM6, YM7, and YM8 are one-way air outlet electric valves, which are installed between the air tank and the high-pressure outlet pipe 29. Under the action of the controller, they control the air outlet state of the air tank. Q1.0 is connected to YM9 to control the state of the three-way electric valve 15. When the fan blade 6 is initially started, the three-way electric valve 15 exhausts air into the air to reduce the starting resistance. When the fan blade 6 rotates normally, the three-way electric valve 15 closes the air exhaust and opens the outlet pipe 18.

[0058] In order to describe the wind power generation method in more detail, this embodiment selects four 10m 3 The air storage tank is briefly introduced. Its maximum allowable pressure is 1Mpa, the diameter of the compressed air inlet is Ф100, and the minimum pressure required for the pneumatic generator to generate electricity is 0.5Mpa. The high-pressure compressed air generated by the compressed air device is connected to the high-pressure inlet pipe 24 through the outlet pipe 18, and is connected to the four air storage tanks through four inlet one-way air electric valves. Only one of the four inlet one-way air electric valves is turned on at a time, and the other three are closed.

[0059] The selection principles for the conduction of the four air inlet one-way electric air valves are as follows: (1) The air tank pressure is less than the maximum allowable pressure of 1Mpa; (2) The air tank does not supply air to the generator (its corresponding air outlet one-way electric air valve is closed); (3) When the pressure of two or more air tanks is less than the maximum allowable pressure of 1Mpa and does not supply air to the generator, the first air tank, the second air tank, the third air tank, and the fourth air tank will be prioritized in this order.

[0060] The compressed air stored in the air tank is used to supply air to the generator and is controlled by four one-way air outlet electric valves. The four one-way air outlet electric valves are connected to four air tanks respectively, and the other end is connected to the high-pressure air outlet pipe 29. The outlet of the high-pressure air outlet pipe 29 is the output end of the air storage device, which is connected to the air-powered generator. Only one of the four one-way air outlet electric valves is opened at a time, and the other three are closed. The opening conditions are: (1) The pressure of the air tank is greater than the minimum pressure of 0.5 Mpa required for the air-powered generator to generate electricity; (2) The air tank is not working in the air storage state; (3) When two or more air tanks meet the above two conditions at the same time, the first air tank, the second air tank, the third air tank, and the fourth air tank are prioritized in order.

[0061] The horizontal axis gas transmission wind power generation method of the present invention:

[0062] 1. Under the action of the tail wing 9, the fan blade 6 is ensured to face the wind. When the fan blade 6 faces the wind, the three-way electric valve 15 opens to conduct to the atmosphere and exhausts air outward, thereby reducing the impact on the starting wind speed.

[0063] 2. When the speed of the main shaft 10 reaches the set value, the three-way electric valve 15 is closed to the atmosphere and opened to the outlet pipe 18. The cam 1 moves in a circle along with the main shaft 10. The cam 1 drives the dynamic connector 3 to move up and down, and drives the connecting rod 7 to move up and down to generate compressed gas.

[0064] 3. The controller opens the gas tank with the smallest pressure value that is lower than the maximum allowable pressure set by the controller according to the pressure values ​​in each gas tank, and the gas tank's outlet one-way air electric valve is in a closed state, opens its inlet one-way air electric valve, and closes other inlet one-way air electric valves, and compresses gas into the gas tank. Assuming that the pressure value in the first gas tank 34 meets the requirements, the compressed gas is stored in the first gas tank 34 through the outlet pipe 18 and the high-pressure inlet pipe 24.

[0065] 4. The pressure sensor 30 in the first gas tank 34 detects the pressure value in the first gas tank 34 in real time. When the air pressure reaches the maximum allowable pressure of the gas tank, the air intake one-way air electric valve of the first gas tank 34 is closed, and the air intake one-way air electric valve of another gas tank that meets the gas storage requirements is opened to compress the gas into the gas tank, assuming that the second gas tank 35 meets the requirements.

[0066] 5. After the first air tank 34 closes the first inlet one-way air electric valve 20, the first outlet one-way air electric valve 25 corresponding to the first air tank 34 is opened, and the outlet one-way air electric valves of other air tanks are closed. The first air tank 34 supplies air to the pneumatic generator, and the pneumatic generator runs to generate electricity.

[0067] 6. After the second gas tank 35 stores gas, when its gas pressure reaches the maximum allowable pressure of the gas tank, the second inlet one-way air electric valve 21 of the second gas tank 35 is closed, and then the inlet one-way air electric valve of another gas tank that meets the gas storage requirements is opened. During the gas storage process of the second gas tank 35, the first gas tank 34 is in a power generation state. After the first gas tank 34 generates electricity, the pressure sensor 30 on the first gas tank 34 monitors the pressure value in the first gas tank 34 in real time. When its pressure is less than the minimum pressure required by the pneumatic generator, the controller controls the first outlet one-way air electric valve 25 of the first gas tank 34 to close and open the outlet one-way air electric valve of another gas tank that meets the power generation requirements of the pneumatic generator (the specific number of the gas tanks that meet the requirements can be determined based on the value of the pressure sensor on each gas tank and whether it is in a gas storage state).

[0068] 7. Therefore, when the second gas tank 35 completes gas storage, the third one-way air electric valve 22 of the third gas tank 36 is opened to store gas. After the first gas tank 34 supplies gas to the pneumatic generator for power generation, the second gas outlet one-way air electric valve 26 of the second gas tank 35 is opened (at this time, the second gas tank 35 is in a gas storage completion state), and the gas in the second gas tank 35 is used to supply gas for power generation. And so on. The third gas tank and the fourth gas tank are used to supply gas for power generation, and then the gas is circulated to the first gas tank for power generation.

[0069] 8. The controller collects the air pressure values ​​in the four air storage tanks in real time, and coordinates the opening and closing of the four air inlet and four air outlet one-way air electric valves, so that the input air pressure of the pneumatic generator is stable within a certain range, and the output voltage can be kept stable continuously.

[0070] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent transformation or modification made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A horizontal axis air transmission wind power generation device, comprising a tower, wherein a main shaft (10) is arranged at the top of the tower (19), and a fan blade (6) and a tail wing (9) are respectively fixed at both ends of the main shaft (10), characterized in that: It also includes a plurality of circularly arranged wheel devices (11) on the top of the tower (19), a turntable (12) being placed in the middle of the wheel devices (11) and being rotatable around the central axis of the circularly arranged wheel devices (11), a pair of main shaft support plates (4) being arranged on the turntable (12), the main shaft (10) being rotatably connected to the main shaft support plates (4), a cam (1) being arranged between the pair of main shaft support plates (4), the cam (1) being fixedly connected to the main shaft (10), a cam connecting shaft (2) being arranged in a cam groove of the cam (1), a dynamic connector (3) being fixed at the other end of the cam connecting shaft (2), and the bottom end of the dynamic connector (3) being connected to an air compression device via a connecting rod (7); The output end of the air compression device is connected to an air storage device, and the output end of the air storage device is connected to a pneumatic generator; The cam (1) is an involute cam structure, and its pressure angle is zero; The air compression device is a double-cylinder structure, comprising a main cylinder (13) and a secondary cylinder (16). A piston (8) is horizontally arranged in the main cylinder (13), and the piston (8) is fixedly connected to the connecting rod (7). An air outlet is provided on the side wall of the secondary cylinder (16), and the air outlet is connected to an air outlet pipe (18). The air outlet pipe (18) is the output end of the air compression device. The main cylinder (13) and the secondary cylinder (16) are connected via upper air inlet pipes. (14), the lower air inlet pipe (17) is connected, 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 wall of the auxiliary cylinder (16) is rotatably connected with a tongue (33), the free end of the tongue (33) can be respectively in contact with the upper and lower inner walls of the air outlet of the side wall of the auxiliary cylinder (16), and the air outlet pipe (18) is also provided with a three-way electric valve (15), which is conducted to the atmosphere or to the air outlet pipe (18); In the initial state, the piston (8) is at the highest position. Under the action of wind, the fan blade (6) rotates, driving the main shaft (10) to rotate, and the cam (1) rotates, driving the piston (8) to move downward through the cam connecting shaft (2), the dynamic connector (3), and the connecting rod (7); at 90°, the piston (8) moves downward to the middle position, and at 180°, the piston (8) moves downward to the lowest position; When the piston (8) moves downward, the upper air inlet (31) opens, the lower air inlet (32) closes, and the tongue (33) moves upward, blocking the air connection between the upper air inlet pipe (14) and the air outlet pipe (18). At this time, air enters from the upper air inlet (31). As the piston (8) moves downward, the lower part of the air in the main cylinder (13) is compressed and enters the auxiliary cylinder (16) through the lower air inlet pipe (17). High-pressure air is output from the air outlet of the auxiliary cylinder (16). The blade (6) continues to rotate, the piston (8) moves upward, the upper air inlet (31) is closed, the lower air inlet (32) is opened, and the tongue (33) moves downward, blocking the air connection between the lower air inlet pipe (17) and the air outlet of the auxiliary cylinder (16). At this time, air enters from the lower air inlet (32). As the piston (8) moves upward, the upper part of the air in the main cylinder (13) is compressed and enters the auxiliary cylinder (16) through the upper air inlet pipe (14), and high-pressure air is output from the air outlet.

2. The horizontal axis air transmission wind power generation device according to claim 1, characterized in that: The gas storage device comprises a plurality of gas storage tanks, which are connected in parallel via pipelines and are respectively connected to the gas outlet pipe (18) and the pneumatic generator via a high-pressure gas inlet pipe (24) and a high-pressure gas outlet pipe (29).

3. The horizontal axis air transmission wind power generation device according to claim 2, characterized in that: An inlet one-way electric air valve is provided on the pipeline in the air inlet direction of each air storage tank, and an outlet one-way electric air valve is provided on the pipeline in the air outlet direction. Each air storage tank is also provided with a pressure sensor (30).

4. The horizontal axis air transmission wind power generation device according to claim 3, characterized in that: It also includes a controller, which is electrically connected to the three-way electric valve (15), the pressure sensor (30), the air intake one-way air electric valve, and the air outlet one-way air electric valve.

5. A wind power generation method based on the horizontal axis air transmission wind power generation device according to claim 4, characterized in that: The following steps are included: S1: Under the action of the tail wing (9), the fan blade (6) is directed toward the wind; S2: Open the three-way electric valve (15) to conduct to the atmosphere, reducing the impact on the starting wind speed; S3: The three-way electric valve (15) is closed to the atmosphere end and opened to the outlet pipe (18) end, thereby realizing dynamic force transmission among the cam (1), the connecting rod (7) and the dynamic connector (3); S4: The controller opens the inlet one-way air electric valve of the gas storage tank that meets the gas storage requirement according to the value of the pressure sensor (30), and closes the other inlet one-way air electric valves to compress gas into the gas storage tank; S5: The pressure sensor (30) monitors the pressure value of the gas storage tank in S4 in real time. When the gas pressure reaches the maximum allowable pressure of the gas storage tank, the inlet one-way air electric valve of the gas storage tank in S4 is closed, and the inlet one-way air electric valve of another gas storage tank that meets the gas storage requirements is opened to compress gas into the gas storage tank; S6: The controller controls the opening of the one-way air electric valve of the gas storage tank that meets the power generation requirements of the pneumatic generator to realize power generation; S7: The pressure sensor (30) monitors the pressure value of the gas storage tank used for power generation in S6 in real time. When the pressure is lower than the minimum pressure required by the pneumatic generator, the controller controls the one-way air electric valve of the gas storage tank to close and opens the one-way air electric valve of another gas storage tank that meets the power generation requirements of the pneumatic generator. S8: looping steps S4-S7, coordinating and 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 multiple air storage tanks.

6. The wind power generation method according to claim 5, characterized in that: The dynamic force transmission in S3 is as follows: the cam (1) moves in a circular motion 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.

7. The wind power generation method according to claim 6, characterized in that: The gas storage requirements in S4 and S5 are: (1) The pressure in the gas tank is lower than the maximum allowable pressure of the gas tank; (2) The air storage tank does not supply air to the pneumatic generator, that is, its corresponding one-way air electric valve is closed; (3) When the pressure of at least two gas tanks is lower than the maximum allowable pressure of the gas tanks and there is no gas supply to the pneumatic generator, the gas tanks are cyclically sorted in the pre-set order.

8. The wind power generation method according to claim 5, characterized in that: The power generation requirements of the pneumatic generators in S6 and S7 are: (1) The pressure in the gas tank is greater than the minimum pressure required for the pneumatic generator to generate electricity; (2) The gas tank is not working in the gas storage state; (3) When there are at least two gas storage tanks that meet the minimum pressure required for the pneumatic generator to generate electricity and the gas storage tanks are not working in the gas storage state, the gas storage tanks are cyclically sorted in the pre-set order.

Images