CN202867104U - Wind driven generator windmill blade - Google Patents

Abstract

The utility model discloses a wind driven generator windmill blade. The wind driven generator windmill blade comprises a blade body and is characterized in that the upper face of the blade body and the lower face of the blade body are vertically provided with diversion rudders of the blade body. By the adoption of the technical scheme that the diversion rudders are additionally installed on the blade body, when the blade body rotates in high speed, the diversion rudder can balance the vibration of the whole blade, and therefore the purpose of lowering noise is achieved.

Description

A kind of wind-driven generator air vane

Technical field

The utility model relates to wind power generation field, particularly a kind of wind-driven generator air vane.

Background technique

Along with the rapid growth of China's economy, energy demand significantly increases, and imbalance between supply and demand is very outstanding, and the situation of power cuts to limit consumption often occurs in many places, has had a strong impact on the raising of expanding economy and living standards of the people.The energy commonly used such as coal, oil, rock gas, through long-term excessive exploitation, reserves reduce fast, and after a large amount of the use, have caused serious pollution to environment, and then threatened mankind itself's existence.Therefore the energy of seeking new cleaning is the task of top priority.

Wind energy is the inexhaustible clean energy resource that is present in nature, and I am excessively vast in territory, northeast, and the northwest, the areas such as East Coastal all exist a large amount of wind energies, are coal, oil, the desirable alternative energy source of rock gas.Wind energy is that green energy resource can be to environment, and is with low cost, is the friendly type of our built environment, the desirable energy of economy society.

Wind energy more and more is subject to the attention of countries in the world as a kind of renewable energy sources of cleaning.Its amount of accumulateing is huge, and the wind energy in the whole world is about 2.74 * 109MW, and wherein available wind energy is 2 * 107MW, than also large 10 times of the water energy total amounts that can develop on the earth.The principle of wind-power electricity generation is to utilize wind-force to drive the air vane rotation, sees through booster engine with the speed lifting of rotation again, impels the generator generating.Wind-power electricity generation drops into less, mounting point and requires relatively loose etc. advantage because it has pollution-free, power generating equipment, and therefore increasing people utilizes wind-power electricity generation.

Traditional air vane is smooth structure (seeing Fig. 1, Fig. 2), and when fan blade rotated, because vane thickness is different, the pressure that is subject to (lift) was not of uniform size, causes air vane to rupture easily, trembles greatlyr, and then causes noise very high.

Summary of the invention

For the problems referred to above, the purpose of this utility model is to design a kind of turn round stable and the low wind-driven generator air vane of noise.

For achieving the above object, the technological scheme that the utility model proposes is: a kind of wind-driven generator air vane, comprise blade body, and it is characterized in that described blade body upper and lower faces is provided with the water conservancy diversion rudder perpendicular to blade body.

Preferably, described water conservancy diversion rudder is at least a slice.

Preferably, described water conservancy diversion rudder is arc-shaped structure.

Adopt technique scheme, install the water conservancy diversion rudder additional in blade body, the fan blade body when high speed rotating, the vibration that the water conservancy diversion rudder can the whole blade of balance, thus reach the purpose that reduces noise.

Description of drawings

Fig. 1 is the basic block diagram of traditional air vane;

Fig. 2 is the cross-sectional view of traditional air vane;

Fig. 3 is the basic system figure of air vane described in the utility model;

Fig. 4 is the cross-sectional view of air vane described in the utility model;

Wherein: 1. blade body, 11. water conservancy diversion rudders.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described further.

As shown in Figure 3, Figure 4, a kind of wind-driven generator air vane comprises blade body 1, and blade body 1 upper and lower faces is provided with at least a slice perpendicular to the water conservancy diversion rudder 11 of blade body 1.Preferably, described water conservancy diversion rudder 11 is arc-shaped structure

Adopt technique scheme, install the water conservancy diversion rudder additional in blade body, the fan blade body when high speed rotating, the vibration that the water conservancy diversion rudder can the whole blade of balance, thus reach the purpose that reduces noise.

Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; within not breaking away from the spirit and scope of the present utility model that appended claims limits; in the form and details the utility model is made a variety of changes, be protection domain of the present utility model.

Claims (3)

1. a wind-driven generator air vane comprises blade body, it is characterized in that, described blade body upper and lower faces is provided with the water conservancy diversion rudder perpendicular to blade body.

2. a kind of wind-driven generator air vane according to claim 1, it is characterized in that: described water conservancy diversion rudder is at least a slice.

3. a kind of wind-driven generator air vane according to claim 1 and 2, it is characterized in that: described water conservancy diversion rudder is arc-shaped structure.

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