Turbine for wind engines

FIELD: power industry.

SUBSTANCE: invention relates to electrical engineering, and namely to wind power plants and wind turbines. The turbine for a wind engine contains the top and bottom blades. Between blades at different distances the wings with formation of air ducts between the top and bottom blades are fixed. The forward part of the wing, located closer to the centre, is guiding one, and back higher part of the wing, located further from the centre, is an air inlet. Each wing includes the top and bottom wings. The top wing is designed with a possibility of change of distance and an angle with reference to the bottom wing.

EFFECT: increase of the working area of turbine with design simplification at the same time.

2 cl, 4 dwg

 

The invention relates to energy, namely wind power plants and wind turbines, and is intended for use in wind power plants of various capacities for residential and industrial buildings, lighting poles, surface and ground transport.

Known wind wheel comprising a shaft with a vertical axis of rotation, is provided with brackets, which are parallel to the axis of the shaft is fixed a hollow blade having an aerodynamic profile. Each blade has a closed profile only in the middle height of the blade part, and her scan in the vertical plane has the form of axisymmetric shapes, sides, oriented along the axis of the shaft, is its basis and exceeds the height of the figure, wherein the figure has a shape that becomes narrower as the distance from the base (EN 2140013, CL F03D 3/06, published 20.10.1999).

Known wind wheel is characterized by insufficient working area and instability in gusty winds.

Also known turbine containing a spherical bushing with fixed blades and mounted on the axis. Blades secured to the hub at angles to the axis to form a vertical and horizontal blades, the last of which is set under negative angles with offset forward to the impinging jet and the formation of Sauze�tion section and the vertical represents the continuation of the horizontal and strengthened under positive angles (RU 2063540, CL F03D 1/06, published 10.07.1996).

Known turbine is difficult to manufacture and cannot provide in the operation of high efficiency.

As the closest analogue of the selected wind turbine with vertical axis and radial air chambers containing a disc, is provided with upper and lower radial blades and the outer blades. During rotation of the disc the said maximum blade expands with the formation of a number of air chambers. In sections, rotating in the opposite direction, the force of frictional resistance due to the folding of the blades (WO 2010/085019, CL F03D 3/06, published 29.07.2010).

The disadvantage is taken as the closest analogue of the solution is relatively small working area of the blades, a great noise and wear when the external deployment of the blades, as well as the possibility of formation of air pockets due to insecurity turbine ducts.

The task of the invention consists in the increased production of electricity by wind motors. This task is achieved technical result aimed at increasing the working area of the turbine and to create conditions under which most involved aiming at turbine air flow.

In addition, pre�proposed turbine design is easier to manufacture, than the closest equivalent.

Mentioned technical result is achieved in the invention by the following features.

Turbine for a wind turbine mounted on a vertical shaft and contains a disc with upper and lower blades, between which at different distances fixed wings with the formation of the ducts between the upper and lower blades so that the front part of the wing located closer to the center, is the directing, and the higher rear portion of the wing, located farther from the center, is the intake, each wing includes upper and lower wings,

upper wing is made with the possibility of changing the distance and angle with respect to the lower wing.

The turbine installed guide the lid covering the other half of the turbine, which moves against the wind, and having a wing for guiding direction of air flow on the working part of the turbine.

The invention is illustrated by drawings, where Fig. 1 schematically shows a turbine (top view); Fig. 2 - a section a-A in Fig. 1; Fig. 3 - sliding wing; Fig. 4 - turbine with cover.

Shown in Fig. 1 turbine for a wind turbine includes mounted on a shaft drive with a fixed bottom 1 and top 2 blades (blades) that are deployed relative to the horizontal plane in the direction od�and another (Fig. 2), where one of the blades, for example, rigidly connected to the lower disk, and the other hinge.

Between these blades is mounted a pair of sliding wings, each of which consists of the upper 3 and lower 4 wings with a trapezoidal shape (Fig. 3), with each upper wing is fixed to the blade 2, and each lower on the blade 1. The wings can be arched.

Between the blades 1 and 2, and wings formed compartments for the passage of air - ducts 5.

The most distant from the center of the turbine wing (past) located on the outer side of the turbine, also consists of the top 6 and bottom 7 of the wings (Fig. 2). As shown in Fig. 1, the leading edge of each successive blade protrudes beyond the outline of the previous blades, and the arrow shows the direction of rotation of the turbine under the action of air flow. So the last wing fence provides air flow to its total height. The wings 6 and 7, like the rest of the wings 3 and 4, are deployed so that their lower sides 8 (Fig. 3) is set closer to the center of the turbine, and their opposites sides of a 9 - further from the centre of the turbine. In

a result, the front part of each wing pair by 8 provides the direction of flow of air towards the center of the turbine, and back, the higher part of this wing by 9, is�tsya air intake. The air stream that enters the turbine top and sides compressed, and the wings, it is sent through the duct 5 into the next part of the turbine.

Fig. 2, the dashed lines show the total working area is depicted parts of the turbine, which is:

S=S1+S2+S3

where S is the total working area;

S1 is the working area of the upper scapula;

S2 - the working area of the lower scapula;

S3 - the working area of the visible part of the wings.

If we take the working area of the wings for approximately one third of the total working space is shown in Fig. 3, parts of the turbine, it is possible to draw a conclusion about the increased pressure on this part of the turbine by a third, and given the fact that the stream of air passing through the duct goes into the next part of the turbine and creates additional pressure on its elements, provides the opportunity to substantially increase the performance of wind turbines, is proposed turbine.

To ensure adjusting the position of the upper wing 3 (6) relative to the lower 4 (7) and therefore of the blades 1 and 2 relative to each other are formed in the wings and elongated along their sides 8 and 9 adjustment holes 10 (Fig. 3), in which to ensure that the fixing bolts are inserted and nuts. Thanks to this the ability to change as distances, the� and the angle of rotation between the upper and lower parts of the pair of wings. Long side 11 of the upper wings is fixed to the blade 2, and the long side 12 of the lower wings attached to the blade 1.

Such design of the wings allows you to change the size of the ducts 5 and regulate the working area of the turbine blades and wings.

According to the embodiment of the device intended for electric vehicles, rail and Maritime transport, the turbine is provided with a cover 13 with the guide wing 14 (Fig. 4). Cover 13 in the form of a box installed outside the upper and lower parts of the turbine by closing the half of the blade which is directed against the air flow, and wing 12 provides the direction of the flow on the blades of the open part of the turbine. Thus, increasing the efficiency of the turbine is ensured thanks to the decision of two problems, namely, the disappearance of air resistance acting on the part of the turbine, spinning against the wind, and the direction of air flow on the working part of the turbine, spinning in accordance with the direction of the wind.

On a moving vehicle, when the wind is blowing towards, and stationary conditions of the area where the wind direction constantly, a turbine with a lid, and without it can be installed vertically. On vehicles proposed turbine of various sizes can be installed in horizontal, t�to and in the vertical plane. The generator can be incorporated into a vehicle, and a separate, associated with the turbine through the gearbox.

For street lighting the proposed turbine can be installed on lighting poles.

For compactness and further increase the working area you can use a dual-turbine, consisting of two mirror arranged relative to each other are identical by construction, the above-described turbines, which will also contribute to the effectiveness of its work.

For residential turbine can be built into the roof.

1. Turbine for a wind turbine comprising upper and lower blades, between which at different distances fixed wings with the formation of the ducts between the upper and lower blades so that the front part of the wing located closer to the center, is the directing, and the higher rear portion of the wing, located farther from the center, is the intake, each wing includes upper and lower wings, the upper wing is made with the possibility of changing the distance and angle with respect to the lower wing.

2. Turbine according to claim 1, in which the guide cap covering the other half of the turbine, which moves against the wind, and having a wing for guiding direction of air flow on the working �part of the turbine.



 

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