RU2282051C1 - Windmill electric generating plant - Google Patents

Abstract

FIELD: wind power engineering.

SUBSTANCE: to decrease mass of tower and provide stability to wind gusts proposed windmill electric generating plant containing tower, windwheel with horizontal axle, step-up gear, generator and slewing base, tower is made up of rods assembled in form of right-angle triangles with common hypotenuse and legs, legs being sides of two isosceles triangles with common base, connecting vertices of right angles, first of which is made horizontal. Bearing unit with shaft of windwheel and drive member of step-up gear is installed in vertex connecting equal sides of second isosceles triangle. First bearing unit of horizontal shaft is installed in middle of base of isosceles triangles. Second bearing unit of horizontal shaft is installed in vertex connecting equal sides of horizontal isosceles triangle. First end of horizontal shaft is provided with driven member of step-up gear connected by flexible tie with drive member. Second end of horizontal shaft is connected with generator, and horizontal isosceles triangle is arranged on slewing base.

EFFECT: improved reliability in operation.

2 cl, 1 dwg

Description

The invention relates to the field of wind energy and can be used to generate electricity.

A known design of the generator with the location on the tower of a rotary wind wheel equipped with a device for installation in the wind [1].

This wind turbine has a traditional type of tower.

Of the known analogues that are closest to the claimed essential features are a wind generator [2], which contains towers, two angled frames connected to the support at the junction with the central support node, wind wheels with horizontal axis mounted on frames (towers) of frames supporting trolleys, multipliers, generators and rotary bases, characterized in that the frames are provided with hinges installed in the central support unit and have guiding mechanisms and a synchronizing device the state.

The disadvantage of this device is the presence of wind-struts, which carry a generator set, which has an increased mass and, therefore, the tower must be designed taking into account the increased load and, therefore, has a large mass.

The invention is aimed at reducing the mass of the tower, ensuring resistance to gusts of wind.

This is achieved by the fact that the tower is made of rods made up of two rectangular triangles with a common hypotenuse and legs, and the legs are the sides of two isosceles triangles with a common base connecting the vertices of right angles, the first of which is horizontal, at a vertex connecting equal sides of the second isosceles triangle, a bearing assembly with a wind wheel shaft and a leading element of the multiplier is installed, the first half is installed in the middle of the base of the isosceles triangles the horizontal shaft bearing assembly, at the vertex connecting the equal sides of the horizontal isosceles triangle, the second horizontal shaft bearing assembly is installed, the first end of the horizontal shaft is equipped with a driven element of the multiplier connected by a flexible connection with the driving element, the second end of the horizontal shaft is connected to the generator, and the horizontal isosceles triangle on a swivel base.

The achievement of the technical result is due to the presence of a rigid tower, in the lower part of which there is a shaft with a generator, while the displacement of the axis of the rotary base relative to the plane of rotation of the wind wheel ensures the self-orientation of the wind power unit to the wind, which saves on a wind-orienting device.

The invention is illustrated in the drawing, which schematically shows a General view of a wind turbine.

The wind generator includes a tower made in the form of a tetrahedron, which is composed of a rod 1, which is the common hypotenuse of two rectangular triangles, the legs of which are rods 2 and 3, which, in turn, are part of a vertical isosceles triangle, rods 4 and 5, which are part of the horizontal isosceles triangle, the rotary base 6, the rods 4, 5, 1 are connected to the second bearing unit 7 of the horizontal shaft 8, the second end of which 9 is connected to the generator 10. Turn Noe base provided with a hinge 11 mounted on a support the tile 12. The tower is provided with a connecting bridge 13, which is the common basis of the horizontal and vertical isosceles triangles. In the middle of the jumper 13, a first bearing assembly 14 of the horizontal shaft 8 is installed, the first end of which is provided with a driven element 15 of the multiplier, which is connected by a flexible connection 16 to the driving element of the multiplier 17, which is mounted on the shaft 18 of the wind wheel 19, while the shaft 18 is installed in the bearing assembly 20 .

The wind power unit operates as follows, under the influence of the wind flow 21, the blades of the wind wheel 19 come into rotation, while the shaft 18 rotates with the driving element 17. Then, through the flexible coupling 16, the driven element 15, the horizontal shaft 8 and the generator 10 come into rotation, electric energy is supplied to network. When changing the direction of the wind, due to the fact that the axis of the hinge 11 is offset from the plane of rotation of the wheel 19, an orienting moment occurs, under the influence of which the wind wheel 19 is located in a plane perpendicular to the direction of the wind flow behind the tower.

The advantage of this wind power unit is the improvement of the overall dimensions of the tower, since the rods: 1, 2, 3 are calculated only on the mass of the bearing assembly 20, with a wind wheel, and the generator 10 is located on the base 6, located in the immediate vicinity of the base plate 12.

Information sources

1. Shefter Ya.I. Using wind power. M .: Energoatomizdat. 1983, p. 109-110, fig. 5.28; 5.29.

2. RF patent No. 2187019 / A.M. Litvinenko - Wind power installation / Publ. B.I. No. 22, 2002, F 03 05/04, application No. 2001101581/06 of January 16, 2001.

Claims (1)

A wind generator comprising a tower, a wind wheel with a horizontal axis, a multiplier, a generator and a rotary base, characterized in that the tower is made of rods made up of two rectangular triangles with a common hypotenuse and legs, and the legs are the sides of two isosceles triangles with a common base connecting the vertices of right angles, the first of which is horizontal, at the vertex connecting the equal sides of the second isosceles triangle, a bearing assembly with a shaft is installed the wind wheel and the driving element of the multiplier, in the middle of the base of the isosceles triangles, the first bearing assembly of the horizontal shaft is installed, at the apex connecting the equal sides of the horizontal isosceles triangle, the second bearing assembly of the horizontal shaft is installed, the first end of the horizontal shaft is equipped with a driven element of the multiplier connected by a flexible connection with the driving element , the second end of the horizontal shaft is connected to the generator, and the horizontal isosceles triangle is laid on a swivel base.