RU2667860C1 - Conveyor windmill - Google Patents

Abstract

FIELD: wind power engineering.

SUBSTANCE: invention relates to wind power engineering. Conveyor windmill contains a body on a turntable and multi-bladed wind turbine located therein. Body has an input confuser, and the wind turbine is made in the form of an inclined conveyor with grooved plates, fixed on drive chains or belts, respectively installed on sprockets or pulleys, rigidly set on parallel shafts, one of which is kinematically connected to the generator, or pump or compressor, wherein the grooved plates are configured to deflect an air flow effecting them.

EFFECT: invention is aimed at maintaining the operating mode of the installation with changes in wind direction.

1 cl, 3 dwg

Description

The invention relates to wind energy and can be used in a wide range of power plants driven by renewable energy sources.

A large number of wind turbines have been developed. Depending on the orientation of the axis of rotation with respect to the direction of the wind flow, they can be:

- with a horizontal axis of rotation parallel to the direction of the wind flow;

- with a horizontal axis of rotation perpendicular to the direction of the wind (similar to a water wheel);

- with a vertical axis of rotation.

Each type of wind turbine has its own advantages and disadvantages. The following disadvantages are characteristic of wind turbines with an open wind wheel:

- the potential danger of structural destruction with the fall of its fragments in the surrounding area. In this regard, even the alienated “danger zone” does not create a full guarantee of safety when using such wind turbines;

- insecurity from precipitation, as well as from icing of the blades and other parts of the structure in the cold seasons;

- the complexity of maintenance and repair of installations when they are located on high buildings;

- danger to bird migration;

- visual and noise discomfort for the population and all living creatures. In-depth review of all kinds of designs of the currently known wind turbines

not allowed to identify any analogues of the claimed device. Even installations with a horizontal axis and a wind direction perpendicular to it do not bear any resemblance to it, so it turned out to be impossible to find a prototype among them.

The task in developing a conveyor wind turbine was to create a simple and fairly effective model of a wind turbine without the above-mentioned imperfections.

Its solution was a developed design containing a housing on a rotary platform, a multiblade wind turbine located in it, made - according to the invention - in the form of a conveyor belt with grooved plates mounted on drive chains or belts, respectively mated with sprockets or pulleys mounted on parallel shafts, kinematically connected with secondary energy converters.

The presented design allows the maximum use of the energy of the wind flow, previously compressed and accelerated by the confuser, as well as partially the energy of the external flow, which creates a vacuum behind the wind turbine body.

The axis of the rotary platform displaced relative to the center of the wind turbine housing ensures self-orientation of the confuser towards the wind flow.

The description is illustrated by a longitudinal section of the wind turbine (Fig. 1), its view "A" - from above - (Fig. 2) and one of the options for fastening the plate to the toothed belt (Fig. 3).

The wind turbine device is similar to the inclined plate conveyor installed in a closed gallery - hence the name proposed for it. In a light and rigid casing 1 (see Fig. 1), having an inlet confuser 2 (see also Fig. 2) and located on a rotary platform 3 mounted on a specially made base 4 or existing building structure, a kind of wind turbine is placed, consisting of two or more flexible transmissions of 5 - drive (conveyor) chains or belts, for example, toothed, on which grooved plates are mounted 6. Moreover, the fastening of these plates to the chains is the same as in the plate conveyor, and in the case of toothed belts - as shown , for example, in FIG. 3, i.e. in elastic eyes 7 connected to belts by vulcanization or gluing.

In the variant with chains, it is desirable to make their bushings from known plastics that do not require lubrication. In addition, such circuits are quiet in operation.

Chains or belts are mounted on wheels 8 (sprockets or pulleys, respectively) mounted on parallel shafts located on their bearings 9, one of the shafts is kinematically connected to an electric generator, pump, compressor, etc. There is a known braking device for putting into operation and stopping the wind turbine, which is connected, moreover, with devices for protecting the entire installation from violation of its operation mode (at increased speed, vibration, complete load shedding).

The leeward end 10 of the housing 1, it is advisable to deploy to the outside to increase its windage and the degree of discharge of the air behind it.

The wind turbine is started by removing the braking. In this case, the air flow compressed by the confuser 2 first acts on the upper plates 6, deflects them down and then acts on the lower plates, which again deflects and leaves at the residual speed the internal space of the housing 1, which is also facilitated by the reduced atmospheric pressure behind its leeward end 10 .

The total force of all plates 6 streamlined by the air flow through chain or belt drive transmissions 5 creates a torque on the shafts of the wind turbine, transmitted to the associated machines or mechanisms.

Electricity (or gas-liquid flows) are transmitted from the latter through channels of a known design, coaxial with the rotary platform 3, and communications laid on the base 4, to external networks.

This wind turbine has stable operation in all weather conditions, practically does not respond to short-term changes in the direction of the wind, and with heavy gusts when sudden changes in its direction to the opposite are possible, the air flow from the back of the case does not change the direction of movement of the plates, thereby maintaining the operating mode wind turbines.

All this, together with the other positive characteristics mentioned above, will ensure her due competitiveness in the market of wind energy converters.

Claims (1)

A conveyor wind turbine comprising a housing on a rotary platform and a multi-blade wind turbine located in it, characterized in that the housing has an inlet confuser, and the wind turbine is made in the form of an inclined conveyor with grooved plates mounted on drive chains or belts mounted respectively on sprockets or pulleys, rigidly mounted on parallel shafts, one of which is kinematically connected with an electric generator, or a pump, or a compressor, while the grooved plates are made with the possibility deviations of the air flow acting on them.

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