LT2009083A - Vertical axis wind turbine - Google Patents

Abstract

Vertical axis wind turbine relates to wind motors with rotation axis substantially at right angle to wind. Wind power plant has wings set on the vertical axis of the wind turbine. Its impeller is placed in a cube-shaped frame, in its four sides are set vertical blinds rotated in an angle to cube-shaped frame bottom side. There is a space between each of the wings and adjacent wing. Impeller can be made of three or more wings.

Description

1 VERTICAL SPEED WIND POWER

Technical area

The vertical axis wind power plant is attributed to wind motors with a rotary axis perpendicular to the wind direction.

Technical level

The principle of operation of vertical axis wind power plants, when the wind flow is directed directly to the useful side of sputtering, is described in W0030580, EP1398500, JP2003042055. In this way, the air flow is not stopped. However, the airflow reaches only part of the surface of the sputum, resulting in a reduction in the beneficial effect factor. It also diminishes because the wind simultaneously works on both sides of the spam, thus reducing the usefulness of the spam by wind acting against the opposite side of the spam, and the major disadvantage of this design is that it needs to be regulated by the wind direction, reduces power plant efficiency and makes the whole construction complicated.

The closest analogue is described in European Patent 1540176 A2, a vertical axis wind turbine with wind-guiding plates. The panels are arranged in a circle, which also gives a significant increase in efficiency.

However, the circular plates have the following disadvantages: 1. The wind flow to the useful side of the sputum is suspended because the circular plates are rotated at an equal angle, which makes the wind an obstacle directly to the beneficial side of the sputum. In addition, the effect of wind on the opposite side of the sputum is not completely stopped, at the same time part of the beneficial effect is lost. 2. The amount of useful wind flow is about 15% lower. The circular guiding structure directs less air into the same size of spam than the square guide structure. 3. Complex design. The essence of the invention

The essence of the proposed invention is that, in order to increase the efficiency of the wind power plant, the wind turbine wing is mounted in a cube-shaped housing, with all four side walls having vertical blinds placed at different angles in the frame. Blinds are placed at such angles that the entire wind energy is directed to the right side of the spam, and in contrast to the spam, half of the wind energy is required. Blinds are mounted on all four sides, so the operation of the sputum does not depend on the wind direction. After installing the spam in the above-described body with wind-directed segments, the spin speed increases by 25% -30%, while increasing the efficiency of the vertical axis wind power plant.

The specially designed and rotating part of the power plant is the wing. For optimum use of airflow force between each of the wings and adjacent wing, there is a gap that allows the air flow to be directed to the entire surface of the adjacent wing.

The wing has three wings arranged at 120 degrees, the wind wing is not stopped, and the sliding wing is directed to the next wing, making better use of wind power.

The wing consists of outer and inner segments. Segment riveting or other attachment to spam wings.

The wing is mounted in a height-described housing with wind-guiding blinds.

A brief description of the figures in the drawing

FIG. 1 - general view of spam a) axonometric projection and b) top view; FIG. 2 - general view of sputum with frame, a) axonometric projection and b) top view; FIG. 3 - airflow deflector with blinds a) top view and b) side view; FIG. 4 - general view of the power plant with blinds, (a) axonometric projection and (b) top view; FIG. 5 - power plant view a) sideways and b) axonometric projection; FIG. 6 - power plant with 4 wings a) axonometric projection and b) top view. 3 Embodiment of the invention Wind power plant with wings positioned on a vertical axis, where the wind turbine wing is placed in a cube-shaped frame with vertical blinds at its four lateral edges inclined 85 ° -105 °, 110 ° -130 °, 125 ° -145 °, respectively. , 135 ° -155 ° and 150 ° -170 ° with respect to the lower edge of the cube-shaped frame. In addition, there is a gap between each of the wings and the adjacent wing, which allows the air flow to be directed to the entire surface of the adjacent wing, which allows optimal distribution of air flows. The radius of each wing of the sputum is between 0.75 and 1.2 L (the distance from the tip of the wing to the spin axis), the length of the wing is 0.8 to 1.1 L, and the distance from the tip of the wing to the beginning of the adjacent wing segment is from 1.2 to 1.4 L. The wing can be made up of three and more wings, in which case the wing wing radius of the four wings is 1.2 to 1.5 L.

The vertical axis wind turbine with wind-guiding blinds has a very high efficiency, and the impeller starts to rotate at a speed of 1-2 m / s. The optimum power of the generator is achieved from a wind speed of 5 m / s, the power of the generator depends on the size of the spam. It is also possible to use several spam and one electric generator. For this purpose, it is possible to mount the housing with spam one on top of the other, vertically, and the axes of the wings connected by couplings.

It can be used where it is necessary to get electricity without connecting to any power grid. The invention can also be used in major cities of Lithuania in Vilnius and Kaunas, the suburbs of which are located in high places and in Klaipėda, which is by the sea.

Claims (1)

4 DEFINITION DEFINITION 1. Vertical axis wind turbine with wings positioned on a vertical axis, characterized in that the wind turbine wing is placed in a cube-shaped frame with vertical blinds at its four lateral edges tilted 85 ° -105 °, 110 ° -130, respectively. °, 125Μ450,135M550 and 150 ° -170 ° with respect to the lower edge of the cube-shaped frame. 2. A wind turbine according to claim 1, characterized in that, between each of the wings and the adjacent wing, there is a gap for directing the air flow to the entire surface of the adjacent wing, thereby allowing an optimal distribution of air flows. 3. Wind power plant according to 1, 2, characterized in that the radius of each wing of the sputum is from 0.75 to 1.2 L, the length of the wing is from 0.8 to 1.1 L, and the distance from the tip of the wing to the adjacent wing 4. The wind power plant according to claims 1 to 3, characterized in that the wing can be comprised of three and more wings. 5. Wind power plant under. Item 4, characterized in that the wing wing radius of the four wings is 1.2 to 1.5 L.