RU2799269C1 - Vertical wind turbine - Google Patents

Abstract

FIELD: wind energy.

SUBSTANCE: invention relates to wind power generators with wind turbines of vertical type, segment and arc type, mainly with a vertical axis. A wind turbine with a vertical axis contains a base, horizontal traverses, on which wind collectors are placed, made in the form of coaxially located rotating blades and fixed curtains enclosed in a cylindrical shell. The blades are equipped with springs, which, when the wind collector moves against the wind flow, rotate the blades relative to the curtain to a position limited by stops on the curtains, in which the blades are located between the windows of the curtains, and when moving downstream, the windows are closed.

EFFECT: reducing the effective surface of the wind turbine moving against the flow, while maintaining the maximum effective surface of the wind turbine moving downstream.

1 cl, 5 dwg

Description

The invention relates to the field of wind energy, in particular to wind power generators with wind turbines of vertical type, segment and arc type, mainly with a vertical axis.

Known wind turbine vertical type [US Pat. RF No. 2290534, publ. December 27, 2006, bul. No. 366, s-ka 2005116803/06, 06/01/2005]. In this technical solution, a technical result has been achieved, which consists in reducing the mass and dimensions of the rotor of a wind power generator while minimizing its cost by simplifying the manufacturing technology and ensured due to the fact that in the rotor of a wind power generator containing a hub, blades, arcuate elements and magnetic circuits, according to the invention, the rotor magnetic circuit made in the form of ferromagnetic parallelepipeds, alternating with non-magnetic prisms, the bases of which are made in the form of isosceles trapezoids, and the side faces are provided with holes for placing fastening elements. The disadvantage of this rotary wind turbine is the possibility of its destruction under the action of centrifugal forces.

Of all known analogues, the closest to the claimed set of essential features is a rotary wind turbine segment wind generator [US Pat. RF No. 2275530, publ. 04/27/2006, bul. No. 366, s-ka 2004128674/06, 09/27/2004]. SUBSTANCE: rotor of a segmented wind power generator contains a hub, blades, arched elements, magnetic circuits, wind collectors, traverses and a column. At the same time, the magnetic circuits of the rotor of the segmental wind power generator are made in the form of coils of ferromagnetic wire, which are mounted on arcuate elements. Thus, a vertical type wind turbine contains wind collectors, a base, traverses, and a column.

The disadvantage of this rotary wind turbine is the reduced efficiency associated with the increased effective surface of the wind turbine moving against the flow.

The invention is aimed at reducing the effective surface of the wind turbine moving against the flow.

The achievement of the technical result is achieved by the fact that the wind turbine is of a vertical type, containing a base, traverses, wind collectors and a column, according to the invention, the wind turbines are made in the form of wind wheels and are equipped with springs, while the wind wheels are mounted on the same axis with fixed curtains, and the curtains themselves are equipped with stops.

The essence of the invention is illustrated in the drawing, where in Fig. 1 shows a top view of a vertical type wind turbine, FIG. 2 is a front view, FIG. 3 shows the interaction of wind wheels and curtains in the presence of a wind flow, in Fig. 4 also, in the absence of a wind flow, in FIG. 5 shows schematically the spatial position of the curtains and one blade of the wind turbine.

The vertical type wind turbine contains a base 1; traverses 2; wind turbines made in the form of wind wheels with blades 3; rotating about axes 4; the wind wheels are enclosed in a cylindrical shell 5 and mounted on the same axis with the fixed curtains 6, and the curtains 6 are equipped with stops 7. The wind wheels are equipped with springs 8. The traverses are mounted on the column 9.

Device operation. In the absence of a wind flow, under the action of a spring 8, the blades of the wind wheels occupy a position between the windows of the curtains - See fig. 4 resting against the stops 7. When exposed to the wind flow, the blade rotates through an angle corresponding to the tangential coordinate of the curtain, to such a position that the blade rests against the stop - See fig. 3, while the window opens, reducing the effective cross section of the wind turbine, in this case the right wind turbine shown in FIG. 2. The left wind turbine remains in the state of closed windows - shown in fig. 4. Thus, under the influence of the wind flow on the plane of the drawing of FIG. 2. The left wind collector has a maximum effective area and moves from the plane of the drawing, and the right wind collector moving towards has open windows, which reduces its effective area, that is, reduces the counteracting moment. When the wind turbine turns, the processes are repeated.

Technique-economic advantage is, on the one hand, the possibility of reducing the effective surface of the wind turbine moving against the wind flow, and on the other hand, maintaining the maximum effective surface of the wind turbine moving downstream.

Claims (1)

A wind turbine with a vertical axis, containing a base, horizontal traverses, on which wind collectors are placed, made in the form of coaxially located rotating blades and fixed shutters enclosed in a cylindrical shell, and the blades are equipped with springs, which, when the wind collector moves against the wind flow, rotate the blades relative to the curtain to the position, limited by stops on the curtains, in which the blades are located between the windows of the curtains, and when moving along the flow, the windows are closed.

Images