RU2334122C2 - Wind-driven electric plant sail - Google Patents

Abstract

FIELD: engines and pumps.

SUBSTANCE: sail representing a half-cylinder rotor is made up of a rigid open-work frame with a chino canvas attached thereto. The said open-work frame comes as a bearing carcass of a four-face pyramid with the base and height sizes complying with the half-cylinder overall sizes, while the aforesaid canvas represents a half-cylinder made integral with the end face plates and is designed to be attached to the rigid open-work frame. Note that the said open-work frame is furnished with the chino fastening points at the pyramid apexes and can be fastened at the pyramid base points.

EFFECT: higher efficiency thanks to sail crease on the carcass in sail against the wind.

2 cl, 2 dwg

Description

The invention relates to the design of devices of wind power plants with rotors-half-cylinders between the end disks.

Known wind power plants with rotors-half cylinders between the end disks / see, for example, SU 19164 A, 01/31/1931 /.

The disadvantage of wind power plants with half-cylinder rotors between the end disks is the relatively low efficiency due to the fact that the blades of the convex side go against the wind, and the rotors themselves are relatively heavy.

The technical result of the invention is to eliminate the noted disadvantages and increase the efficiency of the device.

The technical result is achieved by the fact that in a wind power installation with rotors-half-cylinders between the end disks, the sail in the form of a rotor-half-cylinder is made in the form of a rigid openwork frame with a cloth attached to it made of durable fabric, while the openwork frame is made in the form of a core frame of a tetrahedral pyramid with the base and height, repeating the overall dimensions of the half-cylinder, and the panel is made in the form of a half-cylinder, made in one piece with end disks, with the possibility of fixing on w a tight openwork frame. In addition, the openwork frame is made with places of fastening fabric at the tops of the pyramid and with places of their own fastening at the base of the pyramid.

The proposed technical solution is illustrated in figure 1, 2.

The sail of a wind power installation with half-cylinder rotors between the end disks is a composite structure in which each half-cylinder is made in the form of a rigid frame (Fig. 1) and a panel attached to it (Fig. 2) made of durable fabric.

The openwork frame (see Fig. 1) is made in the form of a core frame of a tetrahedral pyramid with a base (H × 2R) and a height R, repeating the overall dimensions of the half cylinder, and the places of fastening of the panel at the vertices of the pyramid 1, as well as places of their own fastening at the base of the pyramid 2 .

The blade (see figure 2) is made in the form of a half cylinder 3, made at the same time with the end discs 4 and 5, and the mounting points on the inner side of the panel (not shown in figure 2).

The invention, according to the applicant, is new, has an inventive step and is industrially applicable.

, то идущий против ветра полуцилиндр в предлагаемом варианте паруса (со сминаемым на каркасе пирамиды полотнищем) будет иметь парусность примерно в 1,5 раза меньшую, чем полуцилиндр, идущий за ветром, обеспечивая соответствующий выигрыш в энергии и КПД ветроэнергетической установки.Since the volume under the panel and the volume under the pyramid are related as

, then the half-cylinder going against the wind in the proposed version of the sail (with a cloth crumpled on the pyramid frame) will have a windage about 1.5 times smaller than the half-cylinder going behind the wind, providing a corresponding gain in energy and efficiency of the wind power installation.

Claims (2)

1. Sail of a wind power installation with rotors-half-cylinders between end disks, in which each rotor-half-cylinder is made in the form of a rigid openwork frame with a cloth attached to it made of durable fabric, characterized in that the openwork frame is made in the form of a core frame of a tetrahedral pyramid with base and height, repeating the overall dimensions of the half-cylinder, and the panel is made in the form of a half-cylinder, made at the same time integrally with end disks, with the possibility of fixing on a rigid openwork frame. 2. The sail according to claim 1, characterized in that the openwork frame is made with places of fastening fabric at the vertices of the pyramid and with places of their own fastening at the base of the pyramid.

Images