RU2618152C1 - Autonomous wind farm - Google Patents

Abstract

FIELD: power industry.

SUBSTANCE: autonomous wind farm contains a vertical rotation shaft (2), which working elements are blades (3), formed as part of a hollow sphere or a part of a hollow cylinder, mounted on a vertical shaft. The vertical shaft (2) has the form of the hollow cylinder, on the body of which there are blades (3), inserted into the blades fastening grooves with retainers. The vertical shaft (2), mounted in the upper part (1) on the electric generator rotor shaft, which is located inside the hollow cylindrical body (4). The cylindrical body (4) has the greater length and smaller diameter, than the vertical shaft (2) hollow cylinder and it is inserted inside it. The body (4) is provided with a removable supporting panels (5) of the lower part, and from the top it is closed by the vertical shaft (2).

EFFECT: increase of the wind power capacity and efficiency.

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Description

The invention relates to the field of energy and is intended for use in wind power plants for converting wind energy into electrical energy.

On Earth there are many places rich in natural resources, the development of which is hampered by both the harsh climate and the limited use of conventional sources of electricity. An example is the Arctic. The Arctic is characterized by open flat-marshy and mountainous tundra terrain, permafrost, poor vegetation, harsh climate, abrupt weather changes, a very rare road network and an almost complete lack of fuel and building materials.

In all regions of the Arctic, a harsh climate prevails with long snowy winters and short cold summers. Winter lasts 9-10 months a year, and the summer (frost-free) period is only two to three months. Moreover, in some central regions of the Arctic, frosts are possible in any summer month.

There is almost no calm weather in the Arctic. The average wind speed is 4-10 m / s. In winter, winds are observed, the speed of which reaches 20-30 m / s. Cloudy weather prevails throughout the year, and in summer dense damp fogs and low overcast are often observed. For example, on the coast of the Kara Sea and in northern Canada, fogs are 160-180 days a year.

For such specific conditions, special devices for generating electricity are also necessary, without which the development and development of these territories and effective protection against external attacks are impossible. The Autonomous Wind Power Station proposed by the authors will make it possible to solve these problems.

Closest to the technical nature of the claimed invention is a "Rotary wind turbine with a vertical shaft of rotation" (RU 2263815), which contains a rotor, whose working bodies are blades made in the form of a part of a hollow sphere or part of a hollow cylinder mounted on a vertical shaft, the ends of which are equipped with upper and lower bearings located in the upper and lower bearing housings, respectively, it is equipped with a support truss consisting of at least three bearings connected to each other in one rigid the first structural unit with the upper and lower rungs, to which the upper and lower bearing pads with holes in the center are attached respectively, and the bearing housings of the upper and lower bearings are attached coaxially with the holes so that the rotor has the upper and lower ends of the shaft with them the upper and lower bearings are installed in bearing housings and placed inside the support truss between the support pads with the possibility of rotation.

The disadvantage of this device is its complexity, especially in terms of manufacturing technology, subsequent assembly and maintenance. The design does not provide for adjustment or regulation of any parameters.

The objective of the invention is the creation of an autonomous wind power plant of such a design, which will rationally convert wind energy into electrical energy, having a collapsible design and small overall dimensions.

The technical result of this invention is to increase efficiency through the use of a closed structure, increase the power of a rotor wind turbine with a vertical shaft of rotation by increasing the size of the rotor in diameter.

The required technical result is achieved by the fact that a device containing a vertical rotation shaft (2) is used, the vertical shaft has the form of a hollow cylinder with a closed top, blades (3) are located on the cylinder body, which are working bodies, the blades have the ability to be replaced, as they are inserted into the mounting grooves of the blades with clamps, which allows adjustment and regulation depending on the strength of the air flow, the stoppers hold the blades in the mounting grooves during operation, the blades are made as part of a hollow sphere of the hollow cylinder.

The case of an autonomous wind power station (4) is a cylinder, inside of which there is an electric generator, the rotor of which protrudes through an opening in the upper part of the case. The cylindrical body has a greater length and smaller diameter than the hollow cylinder of the vertical rotation shaft (2) and is inserted inside it. In the upper part, the cylinder of the vertical shaft of rotation is rigidly fixed (1) to the rotor shaft of the generator.

The body of an autonomous wind farm (4) is equipped with removable support panels (5) to hold it in a vertical position.

The invention is illustrated in the drawing, which shows an embodiment of an autonomous wind power station, where:

1 - fastening of the vertical shaft of rotation to the shaft of the generator;

2 - vertical shaft of rotation;

3 - blades;

4 - case of an autonomous wind power station;

5 - supporting panels.

The invention works as follows: initially, with the arrival of a group of consumers at the deployment site, to complete the tasks, it is necessary to assemble and install the device. To do this, an open area is determined on the ground by the area corresponding to the installation of an autonomous wind power station, taking into account the dimensions of the support panels (5). The cylindrical body of an autonomous wind farm (4) is installed in a vertical position in the lower part, supporting panels (5) are rigidly attached to it, which are additionally fastened at the edges with pin supports to the ground or snow. The cylinder of the vertical rotation shaft (2) is put on top and rigidly attached to the shaft of the generator from above. Depending on weather conditions, from the available set of blades (3) (there are blades of different sizes and shapes) the most efficient ones are selected, their number is selected, inserted into the blade fixing slots and fixed, the load is connected and the autonomous wind farm is ready to work. Under the influence of air flow on the blades (3), powerful transverse forces arise (Magnus effect), significantly exceeding the force of direct wind pressure. Under the influence of direct wind pressure and these transverse forces, the vertical rotation shaft (2) rotates, driving the rotor of the generator. Received electric energy from the generator through the converter via an electric cable is sent to the distribution and protective devices of the converter, is accumulated in the electric power accumulators or sent directly to the consumer through the power line.

Various sizes of the present invention are possible depending on the transportation and use options. The material for the manufacture of the parts of the device should be light and durable plastics. An autonomous wind power station can be used to autonomously supply household appliances with electric power and charge batteries of weather stations, cattle breeders dwellings, for the needs of military personnel performing special tasks, etc., i.e. where connection to existing power lines is either not economically feasible or technically impossible. Several wind power plants can be installed, according to the invention, the power generators of these plants can be connected in series with each other, which allows to increase the power produced.

Claims (1)

An autonomous wind farm containing a vertical shaft of rotation, in which the working bodies are blades made in the form of a part of a hollow sphere or part of a hollow cylinder, mounted on a vertical shaft, characterized in that the vertical shaft has the form of a hollow cylinder, on the body of which there are blades inserted in the mounting slots of the blades with clamps, in addition, the vertical shaft in the upper part is mounted on the rotor shaft of the electric generator, which is located inside the hollow cylindrical body, cylindrical to rpus has a greater length and smaller diameter than the hollow cylinder vertical shaft, and is inserted inside it, in the housing bottom part is provided with a removable support panels, and the top is closed vertical shaft.

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