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WIND POWER PLANTS. Wind turbines
INVENTION
Patent of the Russian Federation RU2270359

ROTARY WIND POWER STATION

ROTARY WIND POWER STATION

The name of the inventor: Ivanai Alexey Vasilievich (RU); Ivanayskaya Tatiana Sergeevna (RU); Ivanaisky Vladimir Alekseevich (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, sq., 170, A, B, Ivanaysky
Date of commencement of the patent: 2005.01.18

The invention relates to the field of electric power engineering, in particular to the designs of wind power plants. The technical result is to increase the full utilization of wind energy by recovering electricity from exhaust, ventilation and other systems, and in simplifying the design of the rotor wind power plant and its operation and is provided by the fact that the rotor wind power plant contains at least one module. The module includes a rotor with blades made in the form of aerodynamic wings and installed with a clearance relative to the shaft of the module mechanically connected to the generator shaft. The wind power plant is equipped with a fairing located in front of the module along the airflow and covering the gap between the inner edges of the rotor blades of the module and the confuser placed in front of the fairing in the flow and at its outlet enveloping it. And the rotor of the module is made in the form of a disk, and its blades are installed on the disk.

DESCRIPTION OF THE INVENTION

The invention relates to power engineering, in particular to structures of wind power plants in which the axes of rotation of the rotors can have different positions relative to the coordinate axes, but always coaxially with the direction of the air flow, which can be used to generate electricity by converting the energy of the airflow removed by the ventilation Installations from various premises (metro, factory workshops, etc.), as well as 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 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, IPC F 03 D 3/00, 30.12.1982).

In a known wind turbine, a part of the air 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 guided to the rotor blades, which provides for a fuller use of wind.

The shortcomings of the known device include the impossibility of its operation without a wind vane, 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).

A well-known wind turbine can operate 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 its main drawbacks.

The closest in technical essence to the proposed invention is an installation for converting wind energy into electric energy, which is a rotor wind power plant consisting of a guide device with blades made in the form of aerodynamic wings directed to its periphery and a rotor with blades and having the shape 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 air flow provided by the known device within the device increases the efficiency of the use of wind energy, but not in full measure.

A well-known rotor wind power station can not be used to utilize the energy of the air flow leaving the ventilation installations, because of its only vertical location.

The object of the present invention is to increase the completeness of using wind energy, as well as to simplify the design of a rotor wind power plant and its operation.

This object is achieved in that the rotor wind power plant comprising at least one module including a rotor with blades in the form of aerodynamic wings and installed with a clearance relative to the module shaft mechanically coupled to the electric generator shaft is provided with a fairing positioned in front of the module along the airflow and Covering the gap between the inner edges of the blades of the module rotor, and the confuser placed in front of the fairing in the flow and at the outlet of its enclosing, the rotor of the module being made in the form of a disk and its blades mounted on the disk.

This task is also solved by the fact that the rotor wind power plant can be additionally equipped with a weathercock installed on the generator.

This task is also solved by the fact that the rotor wind power plant can be additionally equipped with a guide apparatus with blades.

This problem is also solved by the fact that each subsequent module can be made with a diameter exceeding the diameter of the previous module by at least 1.3 times.

Thanks to this implementation of the wind power station, more complete transmission of energy of both natural and artificially created air streams is provided.

The invention is illustrated in the drawings.

1 shows a proposed rotor wind power plant with a horizontal
Located rotor axis

FIG. 2 shows a variant of the proposed rotor wind power station with a vertical
Located rotor axis

FIG. 3 is a cross-sectional view of FIG. 1 in AA

The proposed rotor wind power plant (FIG. 1) comprises at least one module 1. The module 1 includes a rotor 2 with blades 3 installed with a clearance relative to the shaft 4 of the module 1 mechanically connected to the shaft of the electric generator 5. The blades 3 of the rotor 2 are made in the form of aerodynamic wings , Facing the axis of the shaft 4. The wind power plant is provided with an air deflector 6 arranged in front of the module 1 along the airflow and enclosing the gap between the inner edges of the blades 3 of the rotor 2 of the module 1 and the confuser 7 located in front of the fairing 6 along the flow and at the outlet Its encompassing. The rotor 2 of the module 1 is made in the form of a disk 8 and its blades 3 are mounted on the disk 8. The winding is made by a weather vane 9, with which the rotor wind power plant can be additionally supplied, with the vane 9 installed on the generator 5. In addition, the rotor wind power plant can be additionally Is equipped with a guiding device 10 with blades 11, which makes it possible for the wind power station to work in any winds without stopping it. The presence of the guiding device 10 and protects the birds from death during the operation of the rotor 2. In the case of using several modules in the wind farm, each subsequent module 12 can be made with a diameter not less than 1.3 times the diameter of the previous module 1. In this case, the shafts 4 of each module form a common shaft. The guide device 10 and the confuser 7 are mounted on the generator 5 by means of a transfer sleeve 13, inside which the shaft 4 passes. The wind power plant is mounted on the support 14 with a connecting rotary device 15 for wind tuning. The output of the load of the generator 5 is made through a converter (not shown conditionally) and a regulator 16 electrically connected to the switchboard 17. In addition, the power generator 5 is connected to a battery 18.

VETROELECTRIC POWER STATION WORKS AS FOLLOWING

The flow of wind enters the confuser 7, accelerates in it and, at high speed, hits the fairing 6, deflecting it, flows immediately to all the blades 3 of the rotor 2 and, giving away a part of its kinetic energy to all the blades 3, leaves the volume of the module 1 through the gap between the blades 3 and falls into the next module 12, where, and giving all the blades at once 3 part of their kinetic energy, leaves the wind farm. It is known that in the flow of geometric bodies by a stream of wind vortices always appear, and when a vortex airflow forms, its velocity increases several times in comparison with the speed of the wind at the entrance to the wind station, and its highest velocity is observed on the blades.

The work of all the blades of 3 modules 1 and 12 at once will increase the efficiency of the wind farm. The speed of rotation of the rotors can reach several thousand revolutions per minute, which will allow to refuse the use of reducers.

In the case of a stationary installation of the wind power station (FIG. 2) in the mounting 19, for example, above the ventilation shaft 20 (the axis of the rotor 2 is vertical), the air flow enters the confuser 7, accelerates in it and enters the fairing 6, deflecting it, flows Immediately on all the blades 3, leaves the volume of the module 1 and goes to the next module 12, where, and giving up some of its kinetic energy, leaves the wind farm. In the presence of a natural horizontal windflow, it can simultaneously act on the blades 3 of the modules 1 and 12 through the vanes 11 of the guide apparatus 10. In this case, the forces from the mutually perpendicular air streams on the vanes of the modules 1 and 12 will take place regardless of the flow directions.

Thus, the use of the proposed wind power station will increase the full use of wind energy by recuperation of electricity from exhaust, ventilation and other systems, and simplify the design of the rotor wind farm and its operation.

CLAIM

1. A rotor wind power plant comprising at least one module including a rotor with blades in the form of aerodynamic wings and installed with a clearance relative to the module shaft mechanically coupled to the electric generator shaft, characterized in that it is provided with a fairing located in front of the module to Air flow and covering the gap between the inner edges of the rotor blades of the module, and the confuser placed in front of the fairing in the flow and at its outlet covering, the rotor of the module being in the form of a disk and its blades mounted on the disc.

2. A rotor wind power plant according to claim 1, characterized in that it is further provided with a weather vane mounted on an electric generator.

3. A rotor wind power plant according to claim 1 or 2, characterized in that it is further provided with a guiding apparatus with blades.

4. A rotor wind power plant according to claim 1, characterized in that each successive module is made with a diameter greater than the diameter of the previous module by at least 1.3 times.

print version
Date of publication 11.01.2007gg