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INVENTION
Russian Federation Patent RU2276283
VETROROTOR wind turbines With Bucket wing blades
Name of the inventor: Vladimir Morozov (RU); Lebedev Nikolai
The name of the patentee: Vladimir Morozov (RU); Lebedev Nikolai
Address for correspondence: 115573, Moscow, Walnut Boulevard, 39, building 1, kv.249, V.A.Morozovu
Starting date of the patent: 2001.12.05
The invention relates to the field of wind energy. The technical result is to increase the utilization of wind energy in the ultra-small and high speed wind flow, but also with changes in its azimuth and improving installation efficiency. Bucket vetrorotor comprises a vertical shaft and mounted on the shaft of the horizontal spokes with bulky twin-symmetric with respect to the shaft bucket blades. Skins bucket blades consist of flaps that are biased to the closing and move apart at critical wind gusts pushing the piston drive, moving the rod attached perpendicular to the spoke and coinciding with the direction of its axis, passing completely through a bucket blade wind flow.
DESCRIPTION OF THE INVENTION
The invention relates to wind power engineering and can be used for wind turbines in a stable operation at low and high speeds of wind flows.
A device for use of wind flow energy contained vetrorotor carousel containing a vertical shaft and horizontal mounted thereon two pairs of rotary blades (see. A.s. SU 1008482). When the wind direction of any one plane blade is rotated to wind and produces work its opposite plane rotated 90 ° to the end face of the wind, the further back in the horizontal plane of the blades of the other pair are rotated accordingly. The blades can be covered with sail cloth, which will reduce their weight.
Spinning around a vertical axis, vetrorotor produces work.
The disadvantage is that while not changing the area of the blades surface depending from minimum to maximum wind pressure.
Is selected as a prototype device in which the air flow interacts with the canopy of the parachute opens it, causing rotation perpendicular traverses in a horizontal plane, a vertical rotating shaft (cm. AS SU 1809160 A1, on 09.01.91).
Wind turbine powered by wind in any direction. Air flow, interacting with a dome parachute opens it along the central rod connecting traverse and canopy. The dome is filled with air, it expands and produces work by rotating the shaft, which is attached to the other end of the traverse. When driving into the wind dome parachute canopy is compressed along the rod, reducing aerodynamic drag.
At wind speeds exceeding the maximum allowable, the area of the midsection of domes reduced by moving the adjustment sleeve along the dome of the bar.
Disadvantages of this device are as follows:
1. Vetrorotor works only at high wind speeds, parachutes inflate the fabric. It is known that in most regions of the longer period of time, the winds blow moderate intensity without sudden impulses and their low amplitude. This causes the omission of said device a considerable time.
This is a significant drawback of the device.
2. A significant part of the wind energy is spent on the opening of the parachute, with a maximum opening of the parachute can not coincide with a maximum gust of wind, if the variable intensity.
3. Low efficiency due to the high turbulence of the wind flow created by the closed parachute, having the shape of the bluff.
4. The width of the inlet dome remains constant, that configures the device for withdrawal of the wind energy dosage proportional to the diameter of the entrance.
5. Sudden gusts of varying intensity and direction can skhlopovat parachutes, creating a shock vibration of the vertical shaft, disabling the transmission nodes of its rotation to an electric or other mechanical consumers.
6. The device has a sophisticated adjustment system the maximum allowable wind flow.
These shortcomings lead to inefficient use of the device.
The technical result is to increase the efficiency of energy use in the ultra-small and high speed wind flow and change its azimuth and is provided by the fact that in the bucket vetrorotore containing a vertical shaft and mounted on the shaft of the horizontal spokes with bulky twin-symmetric with respect to the shaft bucket blades, the inventive shell bucket blades consist of flaps that are biased to the closing and move apart at critical wind gusts pushing the piston drive, moving the rod attached perpendicular to the spoke and coinciding with the direction of its axis, passing completely through a bucket blade wind flow.
Vertical mechanical shaft transmits the rotation to consumers, such as electric generator impaled on it through a flywheel larger diameter than the diameter of the shaft or the shaft.
The minimum number of pairs - one.
Pelton blade entry edge attached to one end of the spokes through the rim, extending along its diameter. The other end of the horizontal spokes attached to a vertical shaft.
The flaps are hinged blade at one end to the rim and compressed into an integral shell by means of springs at the opposite end.
With weak wind gusts pushing the disc does not work on the ladle leaf plane, with strong air flows pusher moves the rod deep into the blade and the blade pushes the flap. This forms a passage through the wind kinetic energy without transferring ladle blade. This leads to an automatic removal of the regulation given energy vetropotokah, a and a rotor speed of the rotor and prevent breakage of the force effects of critical wind gusts.
Drop-shell bucket blades and mechanism of disclosure is an essential feature of the proposed device.
The surface of the disk pushing the movable element of the blade is designed for critical windflow.
The blade is made of a rigid material such as plastic or aluminum, or from a wire frame covered with cloth or elastic film. The latter significantly reduces its consumption of materials and weight.
Hole bucket blade facing toward the wind flow and receives its energy, causing the rotating vertical shaft, and the opposite part of the streamlined blade less affected vetropotokah. Last circumstance causes the vertical rotation of the shaft in one direction when the direction vetropotokah.
The applicant has not found technical solutions with features similar to the features of the proposed decision, on the basis of which it can be assumed that the latter has significant differences.
The drawing shows a general view of the proposed device.
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The apparatus comprises a bucket 1 with rims blade 2, the sash 3, a shell 4, the horizontal spokes 5, a vertical shaft 6, one end of which is fastened to the spokes 5, rod 7, inside of the rim 2 of the blade 1 and the pushing piston 8, spring 9. |
Device operates as follows
wind flow enters the aperture blade which is intended area, for example, at a minimum wind flow of 1 m / s, and transmits the kinetic energy to it. The blade rotates in a horizontal plane, the vertical shaft transmitting mechanical rotation.
Strong gusts of wind, for example, 10 m / s, pushing the piston inside the blade edges of the disc piston pushes the envelope flaps and passes through the wind flow, do not give up their energy blades.
Changing azimuth vetropotokah not affect operation of the rotor.
Advantage of the proposed device as compared with the prior art is as follows.
1. Vetrorotor bucket has a replaceable set of blades circumferentially varying inlet designed for wind speeds of 0.5 to 12 meters or more per second.
2. The device operates at low, significantly, the speed of the wind flow through the use of large diameter blades, but also in a variety of wind flow regimes: low, hurricane, with moderate gusts and without gusts, keeping the rotor given power.
3. The blade shell can be made of metal, plastic, film.
4. The blades may vary from the size of the circumference of a small to large, fixed on the rotor spokes according to specifications and needs removal vetropotokah energy.
5. The device in use and environmentally safe.
7. Vetrorotor can be raised to a considerable height, to constant and strong wind flow using aircraft, such as airships, kites, or installing power lines on masts, smokestacks, etc.
CLAIM
Bucket vetrorotor comprising a vertical shaft and mounted on the shaft of horizontal needles with volume pairwise symmetrical about the shaft bucket blades, characterized in that the shell bucket blades consist of flaps which are spring loaded for closure and apart for critical gusts disk pushing piston moving the rod attached perpendicular to the spoke and coinciding with the direction of its axis, passing completely through a bucket blade wind flow.
print version
Publication date 02.02.2007gg
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