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INVENTION
Patent of the Russian Federation RU2249722
ROTARY WIND POWER STATION
The name of the inventor: Ivan A.V. (RU); Ivanaiskaya TS (RU); Ivanaysky V.A. (RU)
The name of the patent holder: Ivanai Alexey Vasilievich (RU); Ivanayskaya Tatiana Sergeevna (RU); Ivanaisky Vladimir Alekseevich (RU)
Address for correspondence: 127540, Moscow, ul. Dubninskaya, 6, building 3, ap.170, A.V. Ivanaysky
Date of commencement of the patent: 2004.05.05
The invention relates to the field of electric power industry, namely, to the designs of wind power plants with a vertical axis of rotation of the rotor. The technical result is to increase the full utilization of wind energy, to ensure the removal of the spent wind flow from each module, to simplify the design of the wind farm and its operation, and is provided by the fact that the rotor wind power plant contains at least one module including a rotor with a vertical axis of rotation and blades , Made in the form of aerodynamic wings and installed with a clearance relative to the shaft of the module mechanically connected to the electric generator shaft, and an annular guiding apparatus connected to the rotor with blades in the form of aerodynamic wings. The blades of the guiding apparatus and the rotor blades with their concave surfaces are oriented in opposite circumferential directions. The module further includes an exhaust device defining the rotor and the guide apparatus from above and consisting of a shell with air vent holes and a bottom connected to it with by-pass openings. And on the shaft of the module a screw with spiral blades located in the gap formed by the blades of the rotor is made.
DESCRIPTION OF THE INVENTION
The invention relates to power engineering, in particular to the designs of wind power plants whose rotor rotation axes are vertical and perpendicular to the direction of the wind flow, and can be used for power generation in wind power stations with the issuance of it to both private and public power systems.
A wind turbine is known, comprising a rotor with curved blades, a guiding apparatus rotatably mounted relative to the rotor and configured as two groups of blades in each of which the length of the blades increases in the direction of rotation of the rotor, and a weathervane located in a plane extending between the blade groups See SU 985402 A, IPC F 03 D 3/00, 30.12.1982).
In a known wind turbine, a part of the wind stream directly affects the curved surfaces of the rotor blades, and the other part of the stream is captured by the guide apparatus and by means of its blades is directed to the rotor blades, which provides for a fuller use of the wind.
The disadvantages of the known device include the impossibility of its operation without a weathervane, the presence of which complicates the design of the device and increases its inertia.
Complicates the design of the known device and the need to install blades of various lengths, and the inflow of the flow at almost a right angle to the surface of the blades leads to their impact and, as a consequence, the appearance of backflows.
In addition, the rotor blades along the entire length are made flat, that is, without aerodynamics.
A wind turbine is known, the turbine of which is formed by a series of profiled axisymmetric blades and is located inside a guide system formed by several fixed guide flaps, each of the turbine blades being part of the lateral surface of the cylinder, the cross section of each of the flaps has a profile in the form of a sinusoid, the edges of the blades are oriented So as to ensure a smooth flow of air from the guide flaps to the turbine blades (see RU 2168059 C2, IPC F 03 D 3/04, 27.05.2001).
The windmill can work without a wind vane, which increases its maneuverability and makes it easy to manufacture.
However, the full use of wind energy in this device is not enough, which is one of the main disadvantages of the known device.
The closest in technical essence to the invention is an installation for converting wind energy into electric energy, which is a rotor wind power plant consisting of a guide apparatus with blades made in the form of aerodynamic wings directed to its periphery and a rotor with blades and having the form of aerodynamic wings, But directed towards the shaft of the rotor and installed with a clearance relative to it. Blades and blades with their concave surfaces are oriented in opposite circumferential directions, and the wind power plant itself is made of at least one module. The shaft of the module is mechanically connected to the generator shaft (see RU 2215898 C1, IPC F 03 D 3/04, 10.11.2003).
The flow pattern of the wind flow provided by the known device inside the device increases the efficiency of the use of wind energy, but not in full measure.
The drawbacks of the known device are that the energy of the wind flow, which goes up along the axis of the module, is not completely used. Especially, the energy losses of the wind flow can increase with the number of modules greater than one.
The object of the invention is to eliminate the shortcomings of the closest analogue, namely, to increase the completeness of using the energy of the wind flow, to simplify the design and operation.
This object is achieved in that in a rotor wind power plant comprising at least one module including a rotor with a vertical axis of rotation and blades in the form of aerodynamic wings and installed with a clearance relative to the shaft of the module mechanically connected to the generator shaft and connected to a rotor of a circular A guide device with blades in the form of aerodynamic wings, wherein the guide vane blades and the rotor blades with their concave surfaces are oriented in opposite circumferential directions; in accordance with the invention, the module further includes an outlet device defining the rotor and the guide apparatus from above and consisting of a shell with holes for removal Air and the bottom connected to it with bypasses, and on the shaft of the module is made a screw with spiral blades located in the gap formed by the rotor blades.
Preferably, the diameter of the screw does not exceed 1/5 of the diameter of the rotor.
And it is preferable that the guide vane blades are installed with an angle of the wind flow input of 30 ° -80 ° and at an angle of 15 ° -80 ° at the outlet.
Due to this implementation of the wind power station, more complete energy transfer of the outgoing wind flow and transportation of the air flow upwards, where it emits into the atmosphere, is provided.
The invention is illustrated in the drawings.
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1 shows a proposed rotor wind power plant;
FIG. 2 is a cross-sectional view of FIG. 1 in AA;
FIG. 3 is a cross-sectional view of FIG. 1 according to BB. FIG.
The proposed rotor wind power plant (FIG. 1) comprises at least one module. The module includes a rotor 1 with a vertical axis of rotation and blades 2 connected to the rotor 1 through the bearing assembly 3, an annular guiding device 4 with blades 5 and an outlet device 6 limiting the rotor 1 and the guide apparatus 4 from above and securing the assembly 3.
The blades 2 of the rotor 1 (FIG. 2) are made in the form of aerodynamic wings facing the shaft 7 of the module and are installed with a clearance relative to the shaft 7. The blades 5 of the guide apparatus 4 are in the form of aerodynamic wings facing away from the shaft 7, 4. In this case, the blades 5 of the guide apparatus 4 and the blades 2 of the rotor 1 are oriented with their concave surfaces in opposite circumferential directions, i.e. in such a way that, for example, the concave surfaces of the blades 2 are oriented clockwise and the blades 5 are oriented counterclockwise. Preferably, the blades 5 of the guide apparatus 4 are installed with an angle of the wind flow input of 30 ° -80 ° and at an angle of 15 ° -80 ° at the outlet.
The discharge device 6 (FIG. 3) consists of a shell 8 with holes 9 for removing air and a bottom 10 connected to it with bypass apertures 11. In addition, a screw 12 with spiral blades 13 located in the gap formed by the blades 2 rotors 1.
Preferably, the outer diameter of the guide device 4 is at least 1.3 times the diameter of the rotor 1.
Preferably, and that the diameter of the screw 12 does not exceed 1/5 of the diameter of the rotor 1.
In the generator compartment 14, on the shaft 15 mechanically connected to the module shaft 7, groups of electric generators 16 (one, two or multi-stage power generators) are installed. The load output of the power generators 16 is made through a converter (not shown) and a controller 17 electrically connected to the switchboard 18 (connections between them are not shown conditionally). In addition, the power generators 16 are connected to the battery 19 and the bus bars 20.
At the upper end of the shaft 7 is installed a tacho-generator 21, at the top of the wind power station a lightning rod 22 is fixed.
Installation of the subsequent modules is carried out one on another by means of a ring 23, which is fixed to the shell 8. The shafts 7 of each module form a common shaft.
VETROELECTRIC POWER STATION WORKS AS FOLLOWING:
The wind flow enters the blades 5 of the guide apparatus 4 of each module, accelerates on them and flows onto the blades 2 of the rotor 1. As is known, when flowing around geometric bodies, a wind stream always produces vortices, and when a vortex airflow forms, its velocity increases by several times With the speed of wind at the entrance to the wind farm, and its highest speed is observed on the blades 2 of the rotor 1, where the air stream gives away some of its kinetic energy and from where it enters the spiral blades 13 of the screw 12 at a high speed. By giving part of its kinetic energy to the helical blades 13 of the screw 12 , The air stream, twisting on the screw 12, rises upward and through the bypass holes 11 enters the outlet device 6, from which through the holes 9 it is removed to the atmosphere from each module, which increases the efficiency of using the wind.
Thus, the use of a discharge device and a screw with spiral blades, made on the shaft of the module, will increase the full use of wind energy, simplify the design and operation.
CLAIM
1. A rotor wind power plant comprising at least one module including a rotor with a vertical axis of rotation and blades made in the form of aerodynamic wings and installed with a clearance relative to the module shaft mechanically coupled to the electric generator shaft and an annular guiding device connected to the rotor The blades are made in the form of aerodynamic wings, wherein the guide vane blades and the rotor blades with their concave surfaces are oriented in opposite circumferential directions, characterized in that the module further includes an outlet device limiting the rotor and the guiding apparatus from above and consisting of a shell with air vent holes And the bottom connected to it with bypasses, and on the shaft of the module is made a screw with spiral blades located in the gap formed by the blades of the rotor.
2. A rotor wind power plant according to claim 1, characterized in that the diameter of the screw does not exceed 1/5 of the diameter of the rotor.
3. A rotor wind power plant according to claim 1 or 2, characterized in that the guide vane blades are installed with an angle of the wind flow input of 30-80 ° and at an angle of 15-80 ° at the outlet.
print version
Date of publication 11.01.2007gg
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