RU2351797C1 - Segment-type windmill - Google Patents

Abstract

FIELD: engines and pumps.

SUBSTANCE: invention relates to wind power engineering, particularly, to devices that convert the wind power into electrical power or some other power types. The proposed segment-type windmill comprises fixed frame, bearing assemblies, windwheels with blades and rotor elements, magnetic cores, excitation source and working coils. The triangular frame has three columns mounted at its angles. The bearing assemblies are fitted at two angles of the frame, while magnetic cores are mounted at the third angle. Windwheels running in bearings are arranged at an angle. The windwheel blades feature symmetric profile, while magnetic cores represent trapezoid with lateral sides facing the working gaps.

EFFECT: higher reliability, simple design, possibility of exploiting various-direction wind power without whatever orienting devices.

2 dwg

Description

The invention relates to wind energy, and in particular to devices that convert wind energy into electrical or other types of energy.

A known installation having a frame base mounted motionless with a constant orientation to the wind [1]. The disadvantage of this system is the unidirectional orientation to the wind.

Closest to the claimed by combined features is a multi-wind receiving device with several wind wheels with orientation to the wind, which contains a rotary truss made in the form of two angled frames, a mast and energy modules [2].

This segment type wind turbine contains a fixed frame, bearing units, wind wheels with rotor elements, a magnetic circuit, an excitation source and working coils.

The disadvantages of this device are the design complexity, low reliability.

The invention is aimed at eliminating this drawback.

This is achieved by the fact that a segment-type wind power unit containing a fixed frame, bearing assemblies, wind wheels with blades and rotor elements, magnetic cores, an excitation source and working coils, according to the invention is made in such a way that the frame is triangular in shape and provided with three columns in the corners, bearing the nodes are fixed at two corners of the frame, and the magnetic cores are at the third corner, while the wind wheels mounted in the bearing nodes are mounted at an angle, their blades have a symmetrical profile, and nitoprovody formed trapezoidal shape with the sides of the trapezoid facing the working gap.

The achievement of the technical result is due to the implementation of the frame in the form of a triangle with two wind wheels.

The invention is illustrated by drawings, where figure 1 shows a wind power plant, a top view, figure 2 is a front view.

The wind power unit contains a triangular frame 1, equipped with three columns 2, 3, 4, installed at the corners. Columns 2 and 4 are equipped with bearing assemblies 5, in which rotating wind wheels with blades 6 and rotor elements are fixed 7. Magnetic cores 8 with permanent magnets 9 and a winding 10 are installed on the middle column 3. Magnetic cores 8 are made in trapezoidal shape, while the sides of the trapezoid form working gaps. The blades are mainly made flat (of a symmetrical profile), which makes it possible to use wind flows directed in different directions, but along one axis. Thus, the bearing units are fixed at the two extreme corners of the frame, and the magnetic cores - at the third average (see figure 1) corner.

Consider the operation of the device at various free-stream positions:

- the flow is directed from above, see figure 1. In this case, oblique flow around the blades 6 of both wind wheels is observed, both wind wheels work with an incomplete load;

- the flow is directed in the middle between the vertical and horizontal directions on the left, see figure 1. In this case, the left one works, see Fig. 1, the wind wheel, and the right one stands;

- the flow is directed to the right at an angle of 45 °. The right wind wheel works, and the left one stands;

- the flow is directed from below, see figure 1. There is oblique flow around both wind wheels, but in the direction opposite to the first case;

- with the right lower oblique direction, the left wind wheel works;

- with the left lower oblique direction, the right wind wheel operates.

The blades of the wind power unit have a symmetrical profile, which allows the use of wind energy in opposite directions, and the use of two wheels set at an angle ensures the possibility of generating electricity without an orienting device.

Information sources

1. McWaig D. Application of solar energy. / Per. from English M .: Energoizdat, 1981. - 216 p., Ill.

2. Copyright certificate of the USSR No. 1409774 / A. M. Litvinenko. Wind power installation / publ. BI No. 26, 1988, F03D 5/04, office No. 4161164 / 25-06 dated 12/08/86.

Claims (1)

A segment type wind power unit containing a fixed frame, bearing units, wind wheels with blades and rotor elements, magnetic cores, an excitation source and working coils, characterized in that the frame is triangular in shape and provided with three columns in the corners, the bearing units are fixed at two corners of the frame, and magnetic circuits - on the third corner, while the wind wheels mounted in the bearing assemblies are installed at an angle, their blades have a symmetrical profile, and the magnetic circuits are made of trapezoidal shape with side the sides of the trapezoid facing the working clearances.

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