RU2362047C2 - Wind-driven electric plant - Google Patents

Abstract

FIELD: electrical power engineering.

SUBSTANCE: invention relates to wind power engineering and can be used for generating electrical energy. The said wind-driven electric plant contains rotor-type drum windwheels, put into cylindrical shells with air diffusers, and a generator. The windwheels are mounted on a horizontal shaft and are fitted on vertical supports. The horizontal shaft is attached on two sides to the vertical supports and has flanges at the ends, on which are rigidly attached inner rims of the windwheels, which are situated on two sides of a revolving tower, on which is fitted a horizontal case. The generator rotor is mounted in the middle part of the horizontal shaft, and the generator stator on the inner part of the horizontal case, mounted on the tower. Supports are rigidly joined to the revolving tower and are provided with roller wheels, which interact with a circular rail, laid down on a fixed base.

EFFECT: invention increases energy efficiency of an air stream and reliability of operation.

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Description

The invention relates to wind energy and relates to wind power plants with guiding devices and wind rotors, designed to generate electricity.

Known wind power installation [1], comprising a housing with an inlet slotted confuser, two drum wind wheels located behind it, mounted for rotation in opposite directions and having blades mounted on parallel shafts, and a flow deflector fairing located behind the wind wheels. A cowl equipped with a flow divider rigidly connected to it is located between the wind wheels having a swirling edge located in the confuser. The implementation of a wind power installation with two parallel shafts rotating in opposite directions and working together on one generator, their mounting on the tower complicate the manufacturing technology.

Also known is a wind power installation [2], comprising a wind wheel with a rim mounted on a horizontal shaft mounted on two trusses rigidly connected to a rotary tower having roller wheels interacting with a circular rail laid on a fixed base and a wind wheel rim connected to the shaft electric generator. The disadvantage of the installation is the occurrence of a significant uncompensated bending moment acting on the upper part of the vertical mast, which creates the need to increase the strength of the mast and at the same time reduces the reliability of the structure. The occurrence of bending moment is explained by the fact that the selection of torque from the wind wheel is asymmetric to the axis of its rotation, which leads to the formation of uncompensated torque forces acting on the upper part of the support.

The aim of the invention is to increase the reliability of the wind power installation and the utilization of energy of the air flow.

This goal is achieved by the fact that the wind power installation contains drum rotor-type wind turbines located in cylindrical casings with air-collecting diffusers, mounted on a horizontal shaft and mounted on vertical supports, and a generator. The horizontal shaft is attached on two sides to the vertical supports and at the ends is equipped with flanges on which the inner rims of the wind wheels are rigidly fixed, which are located on both sides of the turret with a horizontal body mounted on it. The generator rotor is fixed in the middle of the horizontal shaft, and the generator stator is on the inside of the horizontal housing mounted on the tower, while the supports are rigidly connected to the rotary tower, equipped with roller wheels interacting with a circular rail laid on a fixed base.

Wind wheels are placed in cylindrical casings with slots to which air-collecting diffusers are directly attached. At the same time, a gap remains between the casing wall and the diffuser, which creates a pressure difference in the casing, which allows more efficient use of the kinetic energy of the air flow. The use of cylindrical casings allows the wind flow to continuously interact with the blades throughout the 240 ° rotational motion of the blade around the circumference of the horizontal shaft.

Figure 1 shows a wind power installation, side view. Figure 2 shows a wind turbine, section.

The wind power installation (Fig. 1) contains drum rotor-type wind turbines 1 with blades 2 mounted on a rim 3, which is mounted on a horizontal shaft 4. The blades 2 are arranged sequentially every 60 °, along the edges they are fixed on the rim 3. The shaft is mounted on four sliding bearings 5, two of which are mounted on the housing of the housings, in the middle of the shaft, the other two bearings are attached to the vertical bearings 6 from two sides. The vertical bearings 6 on the roller wheels 7 move along the rails 8. The drum wind wheel 1 is placed in a cylindrical casing 9 with slots to which a diffuser 10 is mounted, consisting of two side walls 11, the upper and lower walls 12, located at an angle to each other. From below, the diffuser 10 is attached to the transverse struts 13, which are mounted on the tower 14. Inside the horizontal housing 15 (Fig. 2), the stator of the multi-ring low-speed ring type generator 16 is fixed, the rotor of which is rigidly connected to the horizontal shaft 4. The use of the multi-pole low-speed ring type generator 16 allows abandon the multiplier, in which power is lost and which is the main source of noise. The bearing 17 is rigidly fixed along the outer ring to the horizontal housing 15.

Information sources

1. Copyright certificate No. 1373858, F03D 3/04, S.I. Garbuz, E.I. Garbuz, B.C. Garbuz and others, 08/14/86;

2. Patent of the Russian Federation No. 2024783, F03D 7/00, 9/00, 1/00, Boris N. Fomichev, 01/22/91.

Claims (1)

A wind power installation comprising rotor-type drum wind turbines located in cylindrical casings with air-collecting diffusers, mounted on a horizontal shaft and mounted on vertical supports, and a generator, characterized in that the horizontal shaft is attached on two sides to vertical supports and provided with flanges at the ends, on which are rigidly fixed to the inner rims of the wind wheels, which are located on both sides of the turret with a horizontal housing mounted on it, the generator rotor is fixed ene in the middle of the horizontal shaft and the stator of the generator - on the inside of the horizontal body mounted on the tower, wherein the support is rigidly connected to a rotating turret, equipped with roller wheels, cooperating with a circular rail, laid on a stationary base.

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