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INVENTION
Patent of the Russian Federation RU2215898

ROTARY WIND POWER STATION

The name of the inventor: Ivanai Alexey Vasilievich; Ivanayskaya Tatyana Sergeevna; Ivanaysky Vladimir Alekseevich
The name of the patent holder: Ivanaysky Alexey Vasilievich; Ivanayskaya Tatyana Sergeevna; Ivanaysky Vladimir Alekseevich
Address for correspondence: 127540, Moscow, ul. Dubninskaya, 6, building 3, ap.170, A.Ivayaysky
Date of commencement of the patent: 2002.11.19

The invention relates to the electric power industry, in particular to the designs of wind power plants with a vertical axis of rotation of the rotor. The technical result, which is to increase the completeness of the use of wind energy, to provide a flexible control over the mode of power supply to the consumer, simplify the design and operate it, is ensured by the fact that in a rotor wind power plant including a guiding apparatus with curved blades and a rotor with curved blades, the shaft of which Is mechanically connected to the electric generator shaft according to the invention, the rotor blades are made in the form of aerodynamic wings installed with a clearance relative to the rotor shaft, and the guide vane blades are made in the form of aerodynamic wings, while the blades and blades with their concave surfaces are oriented in opposite circumferential directions, Is made up of at least one module, each of which consists of a rotor and a guiding apparatus, its blades being installed with an angle of wind flow input of 40-60 ^° and an angle of 30-80 ^° .

DESCRIPTION OF THE INVENTION

The invention relates to the electric power industry, in particular to the structures of wind power plants whose rotor rotation axes are vertical and perpendicular to the direction of the wind flow, and can be used to generate electricity at wind power stations with the delivery 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 made in the form of 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 passing between groups of blades See SU 985402 A, cl. F 03 D 3/00, 30.12.1982).

In the known wind turbine, a part of the wind flow 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 more complete utilization of wind energy.

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.

Complicating the design and the need to install blades of different lengths, and the inflow of flow at almost a right angle to the surface of the blades results in their impact on the blades and, as a consequence, the appearance of backflows.

In addition, the rotor blades along the entire length are made flat, i.e. Without regard for aerodynamics.

A wind turbine is also known, the turbine of which is formed by a series of profiled axisymmetric blades and is located inside the 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, and the edges The blades are oriented so as to ensure smooth flow of air from the guide vanes to the turbine blades (see RU 2168059 C2, cl. F 03 D 3/04, May 27, 2001).

Unlike the above device, this wind turbine can operate without a weather vane, which increases its maneuverability and makes it easier 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 power, which is a rotor wind power plant consisting of a rotor with curvilinear blades mounted on a vertical axis connected to the electric generator shaft and a guide apparatus partially enclosing the rotor and representing a series of curved Blades, sections and length of which are performed differentially depending on the angle of the rotor's coverage by the guide apparatus. In the known device, the wind flow on the rotor blade is smoothly flowing, using its energy and draining the waste stream in the vertical direction along the rotor axis (see DE 19739921 A1, cl. F 03 D 3/04, 06.05.1999).

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 completely.

In addition, in the known device, due to the presence of only one rotor, it is not possible to provide a change in the electrical power to be removed, i. E. It is impossible to ensure work in a flexible mode of power delivery, when its value is strictly specified by the consumer.

The drawbacks of the known device include the fact that it is necessary to turn it when changing the direction of movement of the wind flow, which complicates the design and causes inertia of the work.

Complicated and the manufacture of the construction because of the need for a set of blades with different geometric parameters.

The object of the invention is to eliminate the shortcomings of the closest analogue, namely, to increase the completeness of the use of wind energy, to provide a flexible control of the mode of supply of electricity to the consumer, to simplify the design and its operation.

This problem is solved in that in the known rotary wind farm, comprising a guide apparatus with curved vanes and a rotor with curved blades, the shaft of which is mechanically connected to the shaft of an electric generator according to the invention the rotor blades are in the form of aerodynamic wings directed towards the rotor shaft and mounted with a clearance with respect to it, and blades of the guide device and are in the form of the aerodynamic wing, but directed towards the machine periphery, and the vanes and blades with their concave surfaces oriented in opposing circumferential directions, and itself wind farm is made of at least one module, each of which consists of Rotor and guiding apparatus, with its blades being installed with an angle of the wind flow input of 40-60 ^° and at an angle of 30-80 ^° at the outlet.

In addition, the rotor wind power can be characterized by the fact that the profile of each rotor blade is associated with its length by the following relationships: x ₁ = 0,519b, x ₂ = 0,489b, r ₁ = 0,663b, r ₂ = 0,553b, y ₁ = 0,463b , Y2 = 0.215b, z1 = 0.139b, z2 = 0.338b, R = 0.035b, where b is the length of the blade; X ₁ , y ₁ , x ₂ , y ₂ - coordinates of the centers of circles of radii r ₁ , r ₂ , forming respectively the lower and upper boundary of the profile of the blade; Z ₁ is the width of the blade profile at its highest point, the distance to which from the horizontal axis is z ₂ ; R is the rounding radius of one side of the profile. The number of blades is advisable to have at least 12 pieces.

The invention is illustrated by drawings, in which: Figure 1 - a general view of the device in Figure 2 - the cross-section, Figure 3 shows a rotor blade profile with the indication of its geometrical characteristics.

Rotary wind farm is made of at least one module, each of which consists of a rotor 1 with a vertical axis of rotation and connected thereto annular guide vane 2. The modules are interconnected by detachable connections and are mounted on a common shaft 3.

The tachogenerator 4 is installed at the upper end of the shaft 3, and a lightning rod 5 is fixed to the top of the power station.

In the generator compartment 6 on the shaft 7 connected to the shaft 3, groups of electric generators 8 (one-, two- or multi-stage power generators) are installed. The output of the load of the generators 8 is made through a converter (not shown) and a regulator 9 electrically connected to the switchboard 10. In addition, the generators 8 are connected to the battery 11 and current-carrying buses 12.

The blades 13 of the rotor 1 are formed in the form of aerodynamic wings facing the axis of the shaft 3 of the rotor 1 and installed with a clearance relative to the shaft 3, and the blades 14 of the guide apparatus 2 are in the form of aerodynamic wings facing away from the shaft 3 of the rotor 1, i.e. Outside the guide 2.

The blades 14 of the guide apparatus 2 are installed with an angle of the wind flow input of 40-60 ^° and an angle of 30-80 ^° at the outlet, and with respect to the blades 13 of the rotor 1 of the blade 14 are oriented in opposite circumferential directions, i.e. In such a way that, for example, the concave surfaces of the blades 13 are oriented clockwise, and the blades 14 are oriented counter-clockwise.

It is expedient that the outer diameter of the guide apparatus 2 be made with a diameter of at least 1.3 times the outer diameter of the rotor 1.

The work of the power plant is carried out as follows

The wind stream enters the blades 14 of the guide apparatus 2, accelerates on them and enters the blades 13 of the rotor 1, where it is converted into a vortex flow, which, after giving its energy to the blades 13, leaves the volume of the rotor in the vertical direction.

As is known, in the flow of geometric bodies by a stream of wind vortices always appear, and with the formation of a vortex air flow, its velocity increases several times in comparison with the speed of the wind at the entrance to the installation, and its highest velocity is observed on the rotor blades, whereas along the axis of the rotor In its central part), the airflow velocity is practically zero, which is used to remove the exhaust air stream in the vertical direction - along the axis of the installation.

The use of a vortex flow in the invention will maximize the efficiency of converting wind energy into mechanical energy, and the generator group provides high efficiency at all wind speeds.

CLAIM

A rotor wind power plant including a guiding apparatus with curved blades and a rotor with curved blades, the shaft of which is mechanically connected to the electric generator shaft, characterized in that the rotor blades are in the form of aerodynamic wings installed with a clearance with respect to the rotor shaft, and the guide vane blades are made in the form And the blades and blades with their concave surfaces are oriented in opposite circumferential directions, and the station is made of at least one module, each of which consists of a rotor and a guiding apparatus, its blades being installed with an angle of the wind flow input of 40-60 ^° And at an angle of 30-80 ^o at the outlet.

print version
Date of publication 11.01.2007gg

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