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INVENTION
Russian Federation Patent RU2008514
wind turbines
Name of the inventor: Maziar VP .; Medvedev VI .; Makarov VS
The name of the patentee: Chuvash Agricultural Institute
Address for correspondence:
Starting date of the patent: 1991.01.16
Use: in the wind industry. The inventive wind turbine comprises a slotted konfuzor 5 with a diffuser 6. Blades propeller 8 are placed on the vertical shafts 7 overlap each other with the center distance, a large radius and a smaller rotor diameter. Propeller mounted adjacent shafts in different planes with vertically alternating.
DESCRIPTION OF THE INVENTION
The invention relates to wind energy and wind turbines with regard to guide vanes.
Known wind power plant comprising a front slit konfuzor and located two drums behind him, vertically rotatably mounted in opposite directions [1].
The disadvantages of the known device are large frontal surface of the convergent channel and its low efficiency.
The closest the technical essence and achieved result of the invention is a wind turbine, including blade propeller mounted on vertical shafts with center distance that is greater than the radius and smaller rotor diameter [2].
The disadvantages of this wind turbine is a relatively large frontal surface of the convergent channel and the low utilization of wind energy.
The aim of the invention is to increase the utilization of wind energy.
The goal is achieved by the fact that wind turbines consisting of slit confusers windwheels and vane mounted on arranged in a series of vertical shafts with center distance, a large radius and a smaller rotor diameter, the latter on the adjacent shafts are set in different planes with vertical alternation.
Similar features of the proposed technical solutions are known presence of slotted confusers with diffusers and windwheels vane mounted on vertical shafts with center distance, a large radius and a smaller rotor diameter.
The proposed wind turbine is different from the known fact that the propeller blade adjacent shafts are installed in different planes with vertical alternation.
Alternating windwheels adjacent shafts in the proposed device allows to reduce the distance between the shafts to the amount of propeller and shaft radii reduce frontal area confusers section and thereby increase utilization of wind energy. In addition, the proposed design for the distance between the shafts does not affect the number of rotor blades, nor their shape that helps to optimize these parameters and improve wind turbine efficiency.
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FIG. 1 shows a general view of wind turbine; FIG. 2 - the same, top view. Wind turbine consists of fairings 1, 2 and cross-members fixed on rollers 3 mounted rotatably on the eccentric axis 4. Fairing confuser 1 forms a slit 6 with a diffuser 5, wherein the vertical shafts 7 mounted kinematically interconnected and an electric generator (not shown) . On the adjacent shafts 7 in different planes with alternating vertically mounted blade propeller 8. The distance between the adjacent shaft and greater than the radius R and smaller than the diameter D 8 blade windwheels.
Wind turbine operates as follows. Airflow is routed through fairings 1 inlets 5 into the diffuser 6, which increases the speed and which creates the effect of the air corridor. By acting on the blades windwheels 8, concentrated in the diffuser air flow drives the vertical shafts 7 and the associated generator.
Due to the installation of blade windwheels on adjacent shafts in different planes with alternating vertically reduces the distance between adjacent shafts while maintaining windwheels sizes. This reduces the frontal area and the fairings section increasing wind energy utilization, and efficiency of the entire wind turbine and compared with similar aggregates. In addition, the installation of wind turbine eccentrically relative to the axis 4, eliminates the special weathervanes for its orientation towards the wind and to simplify the design. The proposed wind turbine can be operated at low wind speed and create a relatively large moment on the drive shaft of an electric generator, it has a high reliability and uraganoustoychivostyu.
(56) 1. Copyright certificate USSR N 1564375, cl. F 03 D 3/02, 1990.
2. US patent N 4174923, cl. F 03 D 3/02, publish. 1979.
CLAIM
Wind turbines, comprising a slit konfuzor and bladed propeller placed on vertical shafts overlap each other with the center distance, a large radius and a smaller rotor diameter, characterized in that, to improve the energy efficiency of the wind, the wind wheel adjacent shafts are set in different planes with alternating vertically.
print version
Publication date 10.02.2007gg
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