RU2773251C1 - Wind turbine with adjustable wind-guiding screens - Google Patents

Abstract

FIELD: wind power engineering.

SUBSTANCE: invention relates to the field of wind power and can be used to produce mechanical and electrical energy. The wind turbine contains a rotating wind turbine with a vertical axis of rotation and wind-guiding screens located outside the wind turbine around the circumference, freely rotating around the vertical axes. Each wind-guiding screen is equipped with rollers and mounted in a frame on guides located along its upper and lower edges with the possibility of free movement of screens along them in the horizontal direction. They consist of several parts and are made sliding with the possibility of forcibly changing their width depending on the natural wind speed. The guides located along the upper and lower edges of the frame are curved, and a canvas consisting of narrow vertically arranged plates pivotally connected to each other, moving horizontally along curved guides in both directions, is used as wind-guiding screens.

EFFECT: increase in the efficiency of using wind energy by a wind turbine with the help of wind–guiding screens.

1 cl, 5 dwg

Description

The invention relates to the field of wind energy, in particular to wind turbines, and can be used to produce mechanical and electrical energy.

Known wind turbine, containing a rotating wind turbine with a vertical axis of rotation and located outside the wind turbine around the circumference freely rotating around the vertical axes of the wind guide screens, where each wind guide screen is equipped with rollers and installed in the frame on guides located along its upper and lower faces with the possibility of free movement of the screens along them in the horizontal direction, which consist of several parts and are made sliding with the possibility of forced change of their width depending on the natural wind speed [US Pat. 2264558 Russian Federation, IPC ⁷ F03D 3/04. Wind turbine with adjustable wind deflectors / B.P. Khozyainov, D.B. Khozyainov, M.B. Lobanova. - No. 2004114942/06; dec. May 17, 2004; publ. November 20, 2005, Bull. No. 32.].

The disadvantage of this device is that the wind screens do not effectively regulate the speed of the air flow in the volume of the wind turbine and do not provide reliable protection of the wind turbine from hurricane winds and destruction.

The technical result of the claimed invention is to increase the efficiency of the use of wind energy by a wind turbine using wind deflectors.

The specified technical result is achieved by the fact that in a wind turbine with adjustable wind guide screens, containing a rotating wind turbine with a vertical axis of rotation and wind guide screens located outside the wind turbine around the circumference, freely rotating around vertical axes, where each wind guide screen is equipped with rollers and installed in a frame on guides located along the upper and its lower faces with the possibility of free movement of screens along them in the horizontal direction, which consist of several parts and are made sliding with the possibility of forcibly changing their width depending on the natural wind speed, according to the claimed invention, guides located along the upper and lower faces of the frame, are made curved, and as wind screens, a canvas is used, consisting of narrow vertically arranged plates, pivotally connected to each other, moving horizontally along curved guides them in both directions.

The specified technical result is also achieved by the fact that internal and external drives are installed at the ends of the curved guides, which ensure horizontal movement of the web with the help of cables both in one direction and in the other.

The claimed invention is illustrated by drawings, where:

in fig. 1 shows a wind turbine with adjustable wind guide screens located over the entire width of the radial section of the curved guides at a wind speed of 0.5 to 5 m/s;

in fig. 2 shows a wind turbine with adjustable wind guide screens located only on a part of the radial section of the curved guides, at a wind speed of 5 to 10 m/s;

in fig. 3 shows a wind turbine with adjustable wind guide screens located partly radially and partly along the contour of the wind turbine at a wind speed of 10 to 15 m/s;

in fig. 4 shows a wind turbine with adjustable wind deflectors located along the contour of the wind turbine at a wind speed of more than 15 m/s;

in fig. 5 shows a wind screen made in the form of a web consisting of narrow vertically arranged plates.

A wind turbine with adjustable wind screens contains a wind turbine 1 with a vertical axis of rotation, curved guides 2 for moving wind screens 3, made in the form of a blade 4, consisting of narrow vertically arranged plates 5 hinged to each other, an internal drive 6 of the blade 4, an external drive 7 canvas 4 connected to the canvas 4 with cables 8, allowing the canvas 4 to move horizontally and wind on the vertical axis of both the internal 6 and external 7 drives.

Adjustable wind deflectors work as follows. With the help of the inner drive 6 of the web 4, and the external drive 7 of the web 4 with the help of cables 8, the horizontal movement of the web 4 is carried out with its installation on the entire width of the radial section of the curved guides 2, which provides an increase in wind speed in the volume of the wind turbine at a natural wind speed from 0, 5 to 5 m/s. At a wind speed of 5 to 10 m/s, the web 4, remaining in the radial section, is shortened in width, twisting onto the drum of the external drive 7, preventing the wind from flowing around the entire installation and freeing up additional space in front of the wind turbine, since the wind screens become an obstacle to the passage of air flow to the wind turbine. At a wind speed of 10 to 15 m/s, the canvas 4 partially covers the wind turbine 1 from the increased wind speed and meteredly passes the air flow into the volume of the wind turbine by moving the canvas 4 using an internal drive 6. At a wind speed of more than 15 m/s, the canvas 4 is completely closes the wind turbine, spinning on the drum of the internal drive 6, preventing the destruction of the wind turbine 1.

The presented design of wind deflectors will allow controlling the wind speed in the volume of the wind turbine and will not allow both the wind turbine and the installation as a whole to collapse.

Claims (2)

1. A wind turbine with adjustable wind guide screens, containing a rotating wind turbine with a vertical axis of rotation and wind guide screens located outside the wind turbine around the circumference, freely rotating around vertical axes, where each wind guide screen is equipped with rollers and installed in a frame on guides located along its upper and lower faces with the possibility free movement of screens along them in the horizontal direction, which consist of several parts and are made sliding with the possibility of forcibly changing their width depending on the natural wind speed, characterized in that the guides located along the upper and lower edges of the frame are curved, and as For wind screens, a web was used, consisting of narrow vertically arranged plates, hinged to each other, moving horizontally along curved guides in both directions. 2. The wind turbine according to claim 1, characterized in that internal and external drives are installed at the ends of the curved guides, which ensure horizontal movement of the web with the help of cables both in one direction and in the other.

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