RU219806U1 - WIND GENERATOR - Google Patents

Abstract

The utility model relates to wind energy and can be used to drive the working bodies of electric generators and other mechanisms. The technical result of the utility model is to eliminate the excess of the permissible rotational speed of the blades during hurricane gusts of wind. The stated technical result is achieved by the fact that a protective screen with a weather vane is hinged on a vertical support, having a stop for contact with the screen, and the turn of the protective screen to the stop is provided by a spiral spring connected to the screen, with the possibility of turning the protective screen in hurricane gusts of wind towards open wind blades. The wind generator works as follows. The weather vane ensures that the screen is oriented in the direction of the wind. With an acceptable wind force, the spiral spring deploys the protective screen until it contacts the stop with the screen, while the wind pressure on the weather vane is not enough to overcome the force of the spiral spring. The pressure of the air flow on the blades, not covered by the screen and the protective screen, rotates the vertical support, the torque from which is transmitted to the generator by means of a transmission. With hurricane gusts of wind, the wind pressure on the weather vane is sufficient to overcome the force of the spiral spring and turn the protective screen towards the blades open to the wind. In this case, the swept area of the blades decreases and the excess of the permissible rotational speed of the blades is eliminated during hurricane gusts of wind.

Description

The utility model relates to wind energy and can be used to drive the working bodies of electric generators and other mechanisms.

Known wind turbine containing installed on a vertical shaft wind vane, impeller and spoilers [Patent for invention No. 119401 RF, IPC F03D 3/00 Wind turbine / F.R. Ismagilov, M.V. Okhotnikov, D.Yu. Pashali, Yu.V. Afanasiev, G.I. Makeev - No. 2011130765/06; declared on 22.07.11; published 20.08.12, Bull. No. 23].

The disadvantage of this mechanism is the excess of the permissible rotational speed of the impeller during hurricane gusts of wind.

The closest to the claimed solution is a wind generator (Fig. 1) [ Access mode: https://ekopower.ru/vetrogeneratoryi-s-vertikalnoy-osyu-vrashheniya-rossiyskogo-proizvodstva/?ysclid=lbbxn6oa9p284276723], including a vertical support, blades and screen associated with the weather vane.

The disadvantage of such an apparatus is the excess of the permissible rotational speed of the blades during hurricane gusts of wind.

The technical result of the utility model is to eliminate the excess of the permissible rotational speed of the blades during hurricane gusts of wind.

The stated technical result is achieved by the fact that a protective screen with a weather vane is hinged on a vertical support, having a stop for contact with the screen, and the turn of the protective screen to the stop is provided by a spiral spring connected to the screen, with the possibility of turning the protective screen in hurricane gusts of wind towards open wind blades.

The specified essential feature ensures the appearance of the claimed wind turbine new properties that are different from the prototype. Thus, the proposed technical solution meets the criterion of "significant differences" and ensures the achievement of a positive effect, indicated by the technical result of the utility model.

The wind generator (Fig. 2) contains a vertical support 1, on which the blades 2 are fixed. A traverse 3 is pivotally connected to the vertical support 1, to which a screen 4 is attached, connected to a weather vane 5. A protective screen 7 is hinged on the vertical support 1 using a traverse 9 with a weather vane 8, having a stop 10 for contact with the screen 4, and the reversal of the protective screen 7 to the stop is provided by a spiral spring 6 connected to the screen 4. The protective screen 7 can be rotated during hurricane gusts of wind towards the blades 2 open to the wind. The vertical support 1 is transmitted to the generator 11 by means of transmission 12. The vertical support 1 and the generator 11 are mounted on the foundation 13.

The wind generator works as follows.

The weather vane 5 ensures the orientation of the screen 4 in the direction of the wind. With an allowable wind force, the spiral spring 6 deploys the protective screen 7 until the stop 10 contacts the screen 4, while the wind pressure on the weather vane 8 is not enough to overcome the force of the spiral spring 6. The pressure of the air flow on the blades 2, not covered by the screen 4 and the protective screen 7 , rotates the vertical support 1, the torque from which is transmitted to the generator 11 using the gear 12. In hurricane gusts of wind, the wind pressure on the weather vane 8 is sufficient to overcome the force of the spiral spring 6 and turn the protective screen 7 towards the blades 2 open to the wind. this reduces the swept area of the blades 2 and eliminates the excess of the permissible rotational speed of the blades 2 during hurricane gusts of wind.

Information sources

1. Patent for invention No. 119401 of the Russian Federation, IPC F03D 3/00 Wind turbine / F.R. Ismagilov, M.V. Okhotnikov, D.Yu. Pashali, Yu.V. Afanasiev, G.I. Makeev - No. 2011130765/06; declared on 22.07.11; published 20.08.12, Bull. No. 23.

2. Access mode: https://ekopower.ru/vetrogeneratoryi-s-vertikalnoy-osyu-vrashheniva-rossiyskogo-proizvodstva/?vsclid=lbbxn6oa9p284276723.

Claims (1)

A wind generator comprising a vertical support, blades and a screen connected to a weather vane that ensures its orientation in the direction of the wind, characterized in that a protective screen with a weather vane is hinged on the vertical support, having a stop for contact with the screen, and the turn of the protective screen to the stop is provided by a spiral a spring connected to the screen, with the possibility of turning the protective screen in case of hurricane gusts of wind towards the blades open to the wind.