CN117662365A - Wind power generation device and system - Google Patents
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- CN117662365A CN117662365A CN202311828847.4A CN202311828847A CN117662365A CN 117662365 A CN117662365 A CN 117662365A CN 202311828847 A CN202311828847 A CN 202311828847A CN 117662365 A CN117662365 A CN 117662365A
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- 239000003921 oil Substances 0.000 description 54
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Abstract
The invention discloses a wind power generation device and a system, comprising: the device comprises a rotor, a shell, an oil pump, an oil motor, a generator and a speed increaser, wherein the rotor comprises a rotating shaft and rotating blades uniformly and fixedly connected to the rotating shaft; the input end of the speed increaser is in transmission connection with the bottom end of the rotating shaft, the other end of the speed increaser is connected with the input end of the oil pump, the output end of the oil pump is connected with the input end of the oil motor, and the output end of the oil motor is fixedly connected with the input end of the generator; the shell is including the cover establish the outer circle shell of rotor and fix respectively blade P and the blade Q of circle shell lateral wall both sides, the both sides face of blade P and blade Q all inwards concave, still open two business turn over wind openings on the lateral wall of circle shell, the wind passes through the business turn over wind opening of the same side is got into to the side of blade P and blade Q with the side, promotes rotating vane rotates, comes out from the business turn over wind opening of opposite side again. The invention can also be installed on top of a building for household or unit use.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a wind power generation device and a system.
Background
Current wind power generation technology relies primarily on a three-bladed design, with the blades shaped like the wings of a helicopter. This design, while widely used, has a significant limitation in that the area through which the wind is transmitted is relatively small. Each blade can capture only limited wind energy, limiting the overall energy conversion efficiency.
Although other types of wind power generation devices exist on the market, which attempt to improve energy capture efficiency through innovative designs, these new devices have not changed the state of the art fundamentally in practical applications. Overall, both conventional three-bladed designs and new wind power plants are less efficient in terms of the area of the transmitted wind, resulting in a generally lower energy conversion efficiency.
Therefore, improving the wind energy capturing area and the conversion efficiency of the wind power generation device is one of the key problems to be solved in the field.
Disclosure of Invention
In view of the above, embodiments of the present invention provide a wind power generation device and a system to solve the problems in the background art.
An embodiment of the present invention provides a wind power generation device including: the device comprises a rotor, a shell, an oil pump, an oil motor, a generator and a speed increaser, wherein the rotor comprises a rotating shaft and rotating blades uniformly and fixedly connected to the rotating shaft; the input end of the speed increaser is in transmission connection with the bottom end of the rotating shaft, the other end of the speed increaser is connected with the input end of the oil pump, the output end of the oil pump is connected with the input end of the oil motor, and the output end of the oil motor is fixedly connected with the input end of the generator; the shell is including the cover establish the outer circle shell of rotor and fix respectively blade P and the blade Q of circle shell lateral wall both sides, the both sides face of blade P and blade Q all inwards concave, still open two business turn over wind openings on the lateral wall of circle shell, the wind passes through the business turn over wind opening of the same side is got into to the side of blade P and blade Q with the side, promotes rotating vane rotates, comes out from the business turn over wind opening of opposite side again.
Optionally, the outer sides of the sections of the blade P and the blade Q are circular arcs, and the radius of the outer side of the blade Q is greater than that of the outer side of the blade P.
Optionally, the outer sides of the sections of the blade P and the blade Q are archimedes spirals, the radius of one side surface of the blade P is larger than that of the other side surface, the radius of one side surface of the blade Q is larger than that of the other side surface, the side surface with the larger radius of the blade P is arranged at a facing angle with the side surface with the larger radius of the blade Q, and the side surface with the smaller radius of the blade P is arranged at a facing angle with the side surface with the smaller radius of the blade Q.
Optionally, a wind vane mounted on the top of the housing is also included.
Optionally, the rotation axis is vertically arranged.
Optionally, the system further comprises a safety valve, wherein two ends of the safety valve are connected with two ends of the oil pump, and when the pressure of an oil way is too high, the pressure is relieved through the safety valve, so that the safety of the system is ensured.
The embodiment of the invention also provides a wind power generation system, a plurality of wind power generation units, an oil motor and a generator, wherein:
the wind power generation unit comprises a rotor, a shell, an oil pump and a speed increaser, wherein the rotor comprises a rotating shaft and rotating blades uniformly and fixedly connected to the rotating shaft; the input end of the speed increaser is in transmission connection with the bottom end of the rotating shaft, and the other end of the speed increaser is connected with the input end of the oil pump; the shell comprises a round shell sleeved outside the rotor, and blades P and Q respectively fixed on two sides of the side wall of the round shell, both side surfaces of the blades P and Q are concave inwards, and two air inlets and outlets are formed in the side wall of the round shell;
the output end of the oil pump of each wind power generation unit is connected with the input end of the oil motor, and the output end of the oil motor is fixedly connected with the input end of the generator;
wind enters the air inlet and outlet on the same side through the side surface on the same side of the blade P and the blade Q, pushes the rotary blade to rotate, and then comes out from the air inlet and outlet on the other side.
Optionally, the hydraulic oil pump further comprises an accumulator, wherein the accumulator is connected to the input end of the oil motor, when the pressure oil output by the oil pump is excessive, the pressure oil is firstly stored into the accumulator, and when the pressure oil output by the oil pump is insufficient, the pressure oil in the accumulator is output to drive the oil motor.
Optionally, the system further comprises a safety valve, wherein two ends of the safety valve are connected with two ends of the oil pump, and when the pressure of an oil way is too high, the pressure is relieved through the safety valve, so that the safety of the system is ensured.
The technical scheme provided by the embodiment of the application can comprise the following beneficial effects:
according to the embodiment, the shell comprises a circular shell sleeved outside the rotor, and the blades P and the blades Q respectively fixed on two sides of the side wall of the circular shell, both side surfaces of the blades P and the blades Q are inwards concave, two air inlets and outlets are formed in the side wall of the circular shell, and the shell can slowly rotate according to the wind direction so as to ensure that the inner rotor can obtain the maximum wind energy; the invention uses wind energy to generate electricity, firstly converts the energy of the wind energy into mechanical energy, and then drives the generator to generate electricity. The wind power generation device has the advantages of simple structure, low cost, much larger wind power receiving area per unit area than the traditional wind power generation device and extremely high conversion efficiency. The invention can also be installed on top of a building for household or unit use.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic view showing a full-section structure of a wind power generation device according to an exemplary embodiment.
Fig. 2 is a schematic top view of a wind power plant according to an exemplary embodiment.
Fig. 3 is a schematic structural view of a rotor according to an exemplary embodiment.
Fig. 4 is a cross-sectional view of M-M of fig. 3.
FIG. 5 is a state diagram showing one or two shells in equilibrium under wind force, according to an exemplary embodiment.
FIG. 6 is a state diagram showing still another two shells in equilibrium under wind force, according to an example embodiment.
Fig. 7 is a schematic view showing the structure of an oil passage according to an exemplary embodiment.
Fig. 8 is a schematic structural view of another oil passage shown according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.
The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
As shown in fig. 1 to 4, the embodiment of the present invention provides a wind power generation device, which may include a rotor 1, a housing 2, an oil pump 8, an oil motor 9, a generator 4 and a speed increaser 3, wherein the rotor 1 includes a rotating shaft and rotating blades uniformly fixedly connected to the rotating shaft; the input end of the speed increaser 3 is in transmission connection with the bottom end of the rotating shaft 1, the other end of the speed increaser is connected with the input end of the oil pump 8, the output end of the oil pump 8 is connected with the input end of the oil motor 9, and the output end of the oil motor 9 is fixedly connected with the input end of the generator 4; the shell 2 comprises a circular shell sleeved outside the rotor, and blades P and Q respectively fixed on two sides of the side wall of the circular shell, both side surfaces of the blades P and Q are inwards concave, two air inlets and outlets are further formed in the side wall of the circular shell, and wind enters the air inlets on the same side through the side surface of the same side of the blades P and Q to push the rotating blades to rotate and then comes out from the air inlets on the other side; the housing 2 can be slowly rotated according to the direction of the wind force to ensure that the inner rotor can obtain maximum wind energy.
When the wind comes, the wind (in fig. 1, the wind is divided into three parts h, i and j) enters the air inlet and the air outlet on the same side through the side surface on the same side of the blade P and the blade Q, namely: the wind h is guided by one side of the blade P to form wind s, the wind j is guided by one side of the blade P to form wind t, and the wind s, the wind i (opposite to the air inlet and the air outlet) and the wind t enter the air inlet and the air outlet on the same side together, so that the wind force can enter the rotor 1 to the maximum extent, the rotating blade is pushed to rotate, and the wind comes out from the air inlet and the air outlet on the other side.
The number and dimensions of the blades are determined according to the actual requirements and the different wind conditions. Without loss of generality, the blade P and the blade Q are the same weight.
In order to improve the working efficiency, the rotating shaft is vertically arranged, so that wind can be introduced into the housing 2 to the maximum extent to push the rotor 1 to rotate.
In one embodiment, the outer side radius of the blade Q is greater than the outer side radius of the blade P.
Specifically, as shown in fig. 5, the outer sides of the sections of the blade P and the blade Q are circular arcs, and in fig. 5, (a) and (b) are schematic diagrams of the housing 2 in a balanced state under the action of wind force, where the difference between (a) and (b) is that, in the balanced state, the bottom of the blade Q in (a) is located at the rear of the rotor diameter, and (b) the bottom of the blade Q in (b) is located at the front of the rotor diameter, and the structures of the blade P and the blade Q at this time are slightly different, and the specific structural dimensions can be obtained through wind experiment tests according to actual conditions, or can be obtained through modeling simulation, which is not repeated here.
Compared with Archimedes spiral, the arc processing technology and the cost are much less, so the arc form is generally selected.
In another embodiment, as shown in fig. 6, the outer sides of the sections of the blade P and the blade Q are archimedes spirals, the radius of one side b of the blade P is slightly larger than that of the other side a, the radius of one side c of the blade Q is slightly larger than that of the other side d, the side b with the large radius of the blade P is diagonally arranged with the side c with the large radius of the blade Q, and the side a with the small radius of the blade P is diagonally arranged with the side d with the small radius of the blade Q. The difference between (a) and (b) is that, in the balanced state, the bottom of the blade Q in (a) is located in front of the rotor diameter, and the bottom of the blade Q in (b) is located behind the rotor diameter, and the structures of the blade P and the blade Q at this time are slightly different, and the specific structural dimensions can be obtained according to practical conditions through wind experiment tests, and can also be obtained through modeling simulation, which is not described herein.
In an embodiment, a wind vane mounted on top of the housing is also included to match the position of the rotating housing 2 exactly to the wind direction.
As shown in fig. 7, the hydraulic oil pump further comprises a safety valve 10, wherein two ends of the safety valve 10 are connected with two ends of the oil pump, and when the pressure of an oil way is too high, the pressure is relieved through the safety valve 10 so as to ensure the safety of the system.
The working process of the invention is as follows:
when wind power comes, almost all the wind power enters the rotor 1 through the shell 2, the rotor 1 is pushed to rotate, the rotation speed is increased through the speed increaser 3, and the generator 4 is driven to generate electricity. The specific process is as follows: when wind comes, as shown in fig. 1, the wind force of the i part directly blows to the right of the rotor to directly push the rotor to rotate. The wind power of the h part is converted into s direction through the concave part of the side surface of the blade P on the shell 2 and blows to the right of the rotor to push the rotor to rotate. The wind power of the part j is converted into the direction t through the concave part of the side surface of the blade Q on the shell 2, and is blown to the right of the rotor to push the rotor to rotate. In this way, wind power almost completely enters the rotor 1 through the shell 2 to push the rotor 1 to rotate, and then the speed increaser 3 increases the rotation speed, so that the generator 4 is driven to generate electricity. When the wind force in the direction shown in fig. 5 (a) comes, although the radius of the blade Q of the housing 2 is slightly larger than the radius of the blade P, since the bottom of the blade Q is located behind the rotor diameter, when the wind force is in the direction shown in fig. 5 (a), the rotor blocks a part of the wind force blowing to the blade Q side, and thus the moment generated by the wind force on the blade P and the blade Q can be balanced, as the housing 2 is located at the balanced position shown in fig. 5 (a). When the wind direction changes, the moment acting on the two blades of the housing 2 is unbalanced, for example, when the wind blows from the right side of the rotor of fig. 1 to the rotor, as the wind direction does not change as shown in (a) of fig. 5, the housing 2 rotates clockwise for a part, so that the part of the rotor blade Q blocked by the rotor becomes smaller, the moment acting on the blade Q of the housing 2 by the wind becomes larger, and the moment acting on the blade P by the wind is substantially unchanged, so that the moment acting on the blade Q of the housing 2 by the wind is larger than the moment acting on the blade P by the wind, thereby slowly rotating the housing 2 counterclockwise until the moment acting on the two blades of the housing 2 is completely balanced as shown in (a) of fig. 5, and the housing 2 stops rotating. Conversely, when the wind blows from the left side of the rotor shown in fig. 5 (a) toward the rotor, the housing 2 rotates a part counterclockwise as shown in fig. 5 (a) with the effect that the area of the wind force received by one side of the rotor blade Q becomes smaller, the moment of the wind acting on the blade Q of the housing 2 becomes smaller, and the moment of the wind acting on the blade P of the housing 2 becomes substantially unchanged, so that the moment of the wind acting on the blade Q of the housing 2 is smaller than the moment of the wind acting on the blade P, thereby slowly rotating the housing 2 clockwise until it is completely matched with the wind force, returns to the equilibrium position, the moment acting on both blades of the housing 2 is completely balanced, and the rotation of the housing 2 is stopped.
Similarly for (b) in fig. 5, when wind is coming in the direction shown in (b) in fig. 5, although the radius of the blade Q of the housing 2 is slightly larger than the radius of the blade P, since the bottom of the blade Q is located on the front side of the rotor, when wind is coming in the direction shown in (b) in fig. 5, the area of wind received on the side of the blade Q is smaller than that of the blade P, but since the radius of the blade Q is slightly larger than that of the blade P, the moment generated by wind on the blade P and the blade Q can be balanced, as the housing 2 of (b) in fig. 5 is located at the balanced position. When the wind direction changes, the moment acting on the two blades of the casing 2 is unbalanced, for example, when the wind blows from the right side of the rotor (b) in fig. 5 to the rotor, the casing 2 rotates clockwise as much as the wind direction does not change as shown in (b) in fig. 5, so that the area of the wind force received on one side of the rotor blade Q becomes larger, the moment acting on the blade Q of the casing 2 by the wind force becomes larger, and the moment acting on the blade P by the wind force is substantially unchanged, so that the moment acting on the blade Q of the casing 2 by the wind force is larger than the moment acting on the blade P by the wind force, thereby slowly rotating the casing 2 counterclockwise until it is completely matched with the wind force, returns to the equilibrium position, the moment acting on the two blades of the casing 2 is completely balanced, and the rotation of the casing 2 is stopped. Conversely, when the wind blows from the left side of the rotor shown in fig. 5 (b) toward the rotor, the housing 2 rotates a part counterclockwise as shown in fig. 5 (b) with the wind direction unchanged, so that the area of the wind force received by one side of the rotor blade Q becomes small, the moment of the wind acting on the blade Q of the housing 2 becomes small, and the moment of the wind acting on the blade P becomes substantially unchanged, so that the moment of the wind acting on the blade Q of the housing 2 is smaller than the moment of the wind acting on the blade P, thereby slowly rotating the housing 2 clockwise until it is completely matched with the wind force, returns to the equilibrium position, the moment acting on both blades of the housing 2 is completely balanced, and the rotation of the housing 2 is stopped.
The principle and operation of the casing 2 shown in fig. 6 (a) are identical to those of the casing 2 shown in fig. 5 (b), and the principle and operation of the casing 2 shown in fig. 6 (b) are identical to those of the casing 2 shown in fig. 5 (a), both of which are the same as those of the casing 2 shown in fig. 5 (b), with one side surface of the blade Q and one side surface of the blade P being exchanged. When the wind direction changes, the shell can slowly rotate along with the wind direction until the moment acting on the two blades of the shell is completely balanced, and the shell stops rotating. This allows the wind to enter the rotor 1 to the maximum and pushes the rotor 1 to rotate. Thereby maximally utilizing wind power generation, and the efficiency of the wind power generation device is far higher than that of the traditional wind power generation device.
The embodiment of the invention also provides a wind power generation system, a plurality of wind power generation units, an oil motor and a generator, wherein: the wind power generation unit comprises a rotor, a shell, an oil pump and a speed increaser, wherein the rotor comprises a rotating shaft and rotating blades uniformly and fixedly connected to the rotating shaft; the input end of the speed increaser is in transmission connection with the bottom end of the rotating shaft, and the other end of the speed increaser is connected with the input end of the oil pump; the shell comprises a round shell sleeved outside the rotor, and blades P and Q respectively fixed on two sides of the side wall of the round shell, both side surfaces of the blades P and Q are concave inwards, and two air inlets and outlets are formed in the side wall of the round shell; the output end of the oil pump of each wind power generation unit is connected with the input end of the oil motor, and the output end of the oil motor is fixedly connected with the input end of the generator; wind enters the air inlet and outlet on the same side through the side surface on the same side of the blade P and the blade Q, pushes the rotary blade to rotate, and then comes out from the air inlet and outlet on the other side.
If several wind power installations are present, another solution can be used than the one described above. As shown in fig. 8, only one oil pump 8 is installed in one wind power generation device, and the oil motor 9, the generator 4 and the like are intensively installed at another fixed place, and the pressure oil output by all the oil pumps 8 intensively drives the oil motor 9 so as to drive the generator 4 to generate electricity. The advantage of doing so is that no matter how many wind power generation device, that is, no matter how many oil pumps 8, only one oil motor 9 and one generator 4 are needed, so that the system is greatly simplified, the control is more convenient and flexible, and the performance is better. The accumulator 11 is mainly used for storing the pressure oil output by the oil pump 8 into the accumulator 11 when the pressure oil is excessive. When the pressure oil output from the oil pump 8 is insufficient, the pressure oil in the accumulator 11 is output again to drive the oil motor 9. The safety valve 10 is used for relieving pressure through the safety valve 10 when the pressure of the system is too high so as to ensure the safety of the system. Thus, the wind energy can be utilized to the maximum extent. The invention can also be installed on top of a building for household or unit use.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It is to be understood that the present application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (9)
1. A wind power generation apparatus, comprising: the device comprises a rotor, a shell, an oil pump, an oil motor, a generator and a speed increaser, wherein the rotor comprises a rotating shaft and rotating blades uniformly and fixedly connected to the rotating shaft; the input end of the speed increaser is in transmission connection with the bottom end of the rotating shaft, the other end of the speed increaser is connected with the input end of the oil pump, the output end of the oil pump is connected with the input end of the oil motor, and the output end of the oil motor is fixedly connected with the input end of the generator; the shell is including the cover establish the outer circle shell of rotor and fix respectively blade P and the blade Q of circle shell lateral wall both sides, the both sides face of blade P and blade Q all inwards concave, still open two business turn over wind openings on the lateral wall of circle shell, the wind passes through the business turn over wind opening of the same side is got into to the side of blade P and blade Q with the side, promotes rotating vane rotates, comes out from the business turn over wind opening of opposite side again.
2. A wind power plant according to claim 1, wherein the outer sides of the blade P and the blade Q are circular arcs, and the radius of the outer side of the blade Q is larger than the radius of the outer side of the blade P.
3. A wind power generation device according to claim 1, wherein the outer sides of the sections of the blades P and Q are archimedean spirals, the radius of one side of the blade P is larger than the radius of the other side, the radius of one side of the blade Q is larger than the radius of the other side, the side of the blade P with the larger radius is arranged at a facing angle with the side of the blade Q with the larger radius, and the side of the blade P with the smaller radius is arranged at a facing angle with the side of the blade Q with the smaller radius.
4. A wind power plant according to claim 1, further comprising a wind vane mounted on top of the housing.
5. A wind power plant according to claim 1, characterized in that the rotation axis is arranged vertically.
6. A wind power plant according to claim 1, further comprising a safety valve, both ends of which are connected to both ends of the oil pump, and wherein when the oil line pressure is too high, the pressure is relieved by the safety valve to ensure the safety of the system.
7. A wind power generation system characterized by a plurality of wind power generation units, an oil motor, and a generator, wherein:
the wind power generation unit comprises a rotor, a shell, an oil pump and a speed increaser, wherein the rotor comprises a rotating shaft and rotating blades uniformly and fixedly connected to the rotating shaft; the input end of the speed increaser is in transmission connection with the bottom end of the rotating shaft, and the other end of the speed increaser is connected with the input end of the oil pump; the shell comprises a round shell sleeved outside the rotor, and blades P and Q respectively fixed on two sides of the side wall of the round shell, both side surfaces of the blades P and Q are concave inwards, and two air inlets and outlets are formed in the side wall of the round shell;
the output end of the oil pump of each wind power generation unit is connected with the input end of the oil motor, and the output end of the oil motor is fixedly connected with the input end of the generator;
wind enters the air inlet and outlet on the same side through the side surface on the same side of the blade P and the blade Q, pushes the rotary blade to rotate, and then comes out from the air inlet and outlet on the other side.
8. A wind power generation system according to claim 7, further comprising an accumulator connected to the input of the oil motor, wherein when the pressure oil output from the oil pump is excessive, the pressure oil is stored in the accumulator, and when the pressure oil output from the oil pump is insufficient, the pressure oil in the accumulator is output to drive the oil motor.
9. The wind power generation system according to claim 7, further comprising a relief valve, both ends of the relief valve being connected to both ends of the oil pump, and releasing pressure through the relief valve when the oil passage pressure is too high, to ensure safety of the system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311828847.4A CN117662365A (en) | 2023-12-28 | 2023-12-28 | Wind power generation device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311828847.4A CN117662365A (en) | 2023-12-28 | 2023-12-28 | Wind power generation device and system |
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| Publication Number | Publication Date |
|---|---|
| CN117662365A true CN117662365A (en) | 2024-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311828847.4A Pending CN117662365A (en) | 2023-12-28 | 2023-12-28 | Wind power generation device and system |
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| Country | Link |
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| CN (1) | CN117662365A (en) |
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- 2023-12-28 CN CN202311828847.4A patent/CN117662365A/en active Pending
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